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DTSTART;VALUE=DATE:20260504
DTEND;VALUE=DATE:20260505
DTSTAMP:20260610T150432
CREATED:20260504T093526Z
LAST-MODIFIED:20260504T100932Z
UID:5114-1777852800-1777939199@www.theseus-h4c.eu
SUMMARY:Enabling Circular Water Management at Urban and Regional Scale
DESCRIPTION:Enabling Circular Water Management at Urban and Regional Scale				\n				\n				\n					\n				\n		\n					\n		\n				\n				\n																														\n				\n				\n		\n				\n				\n					\n\n\n\n\n\n				\n				\n				\n				\n				\n									The Water Symbiotic Flows pilot demonstrates approaches for managing urban water and wastewater flows\, as circular urban resources. The pilot integrates decentralised and centralised solutions to recover water\, nutrients\, and energy\, supporting climate resilience and long-term sustainability in urban and peri-urban environments. 								\n				\n				\n				\n									The problem Urban water systems across Europe are under growing pressure from climate change\, population density\, and competing demands for freshwater. Traditional linear water management models treat wastewater and sewage sludge primarily as liabilities\, resulting in high resource losses\, increased energy consumption\, and environmental stress. 								\n				\n		\n				\n				\n									Even in regions with well-developed water infrastructure\, cities face recurring challenges related to water scarcity\, flood risks\, and the rising cost and energy intensity of water treatment. Opportunities to recover treated water\, nutrients\, and energy remain largely underexploited\, limiting the transition toward more resilient and circular water systems. 								\n				\n									\n				\n				\n									These challenges are particularly acute in water-stressed regions. In Attica\, Greece\, climate change is intensifying heatwaves and water scarcity during summer months\, placing increasing pressure on freshwater resources. Current systems rely heavily on potable water for irrigation and other non-potable uses\, while wastewater treatment remains energy-intensive and largely centralised. 								\n				\n				\n				\n									Additional barriers include: Infrastructure limitations: Integrating decentralised water treatment at the point of demand faces technical\, financial\, and regulatory challenges\, despite its potential to reduce system-wide energy use and losses.Wasteful by-products: Sewage sludge management is costly and complex. Drying and incineration involve high capital and operational costs\, while land application is difficult in dense urban contexts.Safety concerns: Reuse of treated wastewater for agriculture requires strict control of pathogens and emerging contaminants\, in line with the EU Water Reuse Regulation (EU) 2020/741.As a result\, valuable water\, nutrients\, and energy are lost\, while cities face rising water scarcity risks\, higher treatment costs\, and reduced adaptive capacity to climate impacts. 								\n				\n				\n				\n									What THESEUS is doing THESEUS is implementing a comprehensive set of solutions\, bridging the gap between urban water management and circular agriculture. Decentralised sewer mining: Sewer mining units based on membrane bioreactor technology abstract wastewater directly from local sewers\, treat it on-site\, and reuse it for irrigating urban green spaces\, including parks in Attica (Klonaridi – Fix Park). This reduces freshwater demand and helps mitigate urban heat stress.Rainwater harvesting and urban green spaces: Rainwater harvesting systems are implemented at the 21st Primary School of Athens as a first application\, where collected rainwater is used to irrigate rooftop and yard green spaces. In parallel small-scale composting units treat biowaste and produce compost applied within the on-site green areas\, with similar systems planned for additional residences and an educational building.Nature-based Solutions (NbS): Urban parks are redesigned using solutions such as rain gardens and bioswales (in the KAPAPS park of Athens) to harvest and manage rainwater and stormwater. These interventions reduce flood risks while providing alternative water sources for urban and industrial uses.Centralised reclaimed water: In Eastern Attica\, the project assesses the reuse of treated wastewater from a WWTP (Koropi-Peania) for agricultural irrigation. The activities focus on evaluating the fate and potential accumulation of emerging contaminants in reclaimed water\, soil and crops\, as well as the effects of reclaimed water on crop development and soil health\, feeding into the development of a Risk Management Plan in line with the EU Water Reuse Regulation 2020/741.Sludge valorisation via pyrolysis: Sewage sludge from major wastewater treatment plants\, at Psyttalia\, is treated using fast pyrolysis and torrefaction. These processes convert sludge into bio-oil\, gas\, and biochar\, transforming a disposal challenge into an energy and material resource.								\n				\n				\n				\n																														\n				\n				\n				\n									All solutions are implemented in real urban and peri-urban environments through a mix of new pilot installations and actions linked to existing water and wastewater systems The pilot applies a systemic approach that integrates water reuse\, risk-based safety validation\, and high-value resource recovery within urban and regional water systems. Beyond disposal: Instead of focusing on sludge drying or incineration\, the pilot applies advanced thermal processes to recover energy carriers and biochar\, creating new circular value chains from wastewater residues.Risk-based safety validation: The pilot conducts detailed risk assessments for emerging contaminants\, including pharmaceuticals and personal care products\, in crops irrigated with reclaimed water. This supports compliance with EU Regulation 2020/741 and builds confidence for agricultural uptake.System-level planning: Rather than isolated demonstrations\, the pilot feeds into a co-developed Strategic Regional Master Plan for Circularity. This plan incorporates system design\, pricing models\, and governance considerations\, enabling future investments by the Region of Attica.								\n				\n				\n				\n									Expected outcomes and impact The pilot aims to establish a blueprint for reducing freshwater consumption and closing the loop on wastewater solids. Quantitative targets: The goal is to reduce freshwater consumption for urban green irrigation by 50%.Flood mitigation impacts: Nature-based solutions are expected to reduce rainfall runoff volumes by approximately 15% and peak discharge by up to 40%\, significantly lowering flood risks in intervention areas.Policy and investment uptake: The ultimate output is the adoption of the Strategic Master Plan by local authorities\, enabling future investments in circular water systems across the wider Attica region.
URL:https://www.theseus-h4c.eu/event/enabling-circular-water-management-at-urban-and-regional-scale/
LOCATION:Online\, Online
CATEGORIES:Past
ATTACH;FMTTYPE=image/png:https://www.theseus-h4c.eu/wp-content/uploads/2026/05/Pilots-water-post.png
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260428
DTEND;VALUE=DATE:20260429
DTSTAMP:20260610T150432
CREATED:20260430T093500Z
LAST-MODIFIED:20260430T114127Z
UID:5082-1777334400-1777420799@www.theseus-h4c.eu
SUMMARY:THESEUS H4C presents digital pathways for regional circularity\, MFA projections and Digital Product Passports
DESCRIPTION:Enabling Circular Water Management at Urban and Regional Scale				\n				\n				\n					\n				\n		\n					\n		\n				\n				\n																														\n				\n				\n		\n				\n				\n					\n\n\n\n\n\n				\n				\n				\n				\n				\n									The Water Symbiotic Flows pilot demonstrates approaches for managing urban water and wastewater flows\, as circular urban resources. The pilot integrates decentralised and centralised solutions to recover water\, nutrients\, and energy\, supporting climate resilience and long-term sustainability in urban and peri-urban environments. 								\n				\n				\n				\n									The problem Urban water systems across Europe are under growing pressure from climate change\, population density\, and competing demands for freshwater. Traditional linear water management models treat wastewater and sewage sludge primarily as liabilities\, resulting in high resource losses\, increased energy consumption\, and environmental stress. 								\n				\n		\n				\n				\n									Even in regions with well-developed water infrastructure\, cities face recurring challenges related to water scarcity\, flood risks\, and the rising cost and energy intensity of water treatment. Opportunities to recover treated water\, nutrients\, and energy remain largely underexploited\, limiting the transition toward more resilient and circular water systems. 								\n				\n									\n				\n				\n									These challenges are particularly acute in water-stressed regions. In Attica\, Greece\, climate change is intensifying heatwaves and water scarcity during summer months\, placing increasing pressure on freshwater resources. Current systems rely heavily on potable water for irrigation and other non-potable uses\, while wastewater treatment remains energy-intensive and largely centralised. 								\n				\n				\n				\n									Additional barriers include: Infrastructure limitations: Integrating decentralised water treatment at the point of demand faces technical\, financial\, and regulatory challenges\, despite its potential to reduce system-wide energy use and losses.Wasteful by-products: Sewage sludge management is costly and complex. Drying and incineration involve high capital and operational costs\, while land application is difficult in dense urban contexts.Safety concerns: Reuse of treated wastewater for agriculture requires strict control of pathogens and emerging contaminants\, in line with the EU Water Reuse Regulation (EU) 2020/741.As a result\, valuable water\, nutrients\, and energy are lost\, while cities face rising water scarcity risks\, higher treatment costs\, and reduced adaptive capacity to climate impacts. 								\n				\n				\n				\n									What THESEUS is doing THESEUS is implementing a comprehensive set of solutions\, bridging the gap between urban water management and circular agriculture. Decentralised sewer mining: Sewer mining units based on membrane bioreactor technology abstract wastewater directly from local sewers\, treat it on-site\, and reuse it for irrigating urban green spaces\, including parks in Attica (Klonaridi – Fix Park). This reduces freshwater demand and helps mitigate urban heat stress.Rainwater harvesting and urban green spaces: Rainwater harvesting systems are implemented at the 21st Primary School of Athens as a first application\, where collected rainwater is used to irrigate rooftop and yard green spaces. In parallel small-scale composting units treat biowaste and produce compost applied within the on-site green areas\, with similar systems planned for additional residences and an educational building.Nature-based Solutions (NbS): Urban parks are redesigned using solutions such as rain gardens and bioswales (in the KAPAPS park of Athens) to harvest and manage rainwater and stormwater. These interventions reduce flood risks while providing alternative water sources for urban and industrial uses.Centralised reclaimed water: In Eastern Attica\, the project assesses the reuse of treated wastewater from a WWTP (Koropi-Peania) for agricultural irrigation. The activities focus on evaluating the fate and potential accumulation of emerging contaminants in reclaimed water\, soil and crops\, as well as the effects of reclaimed water on crop development and soil health\, feeding into the development of a Risk Management Plan in line with the EU Water Reuse Regulation 2020/741.Sludge valorisation via pyrolysis: Sewage sludge from major wastewater treatment plants\, at Psyttalia\, is treated using fast pyrolysis and torrefaction. These processes convert sludge into bio-oil\, gas\, and biochar\, transforming a disposal challenge into an energy and material resource.								\n				\n				\n				\n																														\n				\n				\n				\n									All solutions are implemented in real urban and peri-urban environments through a mix of new pilot installations and actions linked to existing water and wastewater systems The pilot applies a systemic approach that integrates water reuse\, risk-based safety validation\, and high-value resource recovery within urban and regional water systems. Beyond disposal: Instead of focusing on sludge drying or incineration\, the pilot applies advanced thermal processes to recover energy carriers and biochar\, creating new circular value chains from wastewater residues.Risk-based safety validation: The pilot conducts detailed risk assessments for emerging contaminants\, including pharmaceuticals and personal care products\, in crops irrigated with reclaimed water. This supports compliance with EU Regulation 2020/741 and builds confidence for agricultural uptake.System-level planning: Rather than isolated demonstrations\, the pilot feeds into a co-developed Strategic Regional Master Plan for Circularity. This plan incorporates system design\, pricing models\, and governance considerations\, enabling future investments by the Region of Attica.								\n				\n				\n				\n									Expected outcomes and impact The pilot aims to establish a blueprint for reducing freshwater consumption and closing the loop on wastewater solids. Quantitative targets: The goal is to reduce freshwater consumption for urban green irrigation by 50%.Flood mitigation impacts: Nature-based solutions are expected to reduce rainfall runoff volumes by approximately 15% and peak discharge by up to 40%\, significantly lowering flood risks in intervention areas.Policy and investment uptake: The ultimate output is the adoption of the Strategic Master Plan by local authorities\, enabling future investments in circular water systems across the wider Attica region.
URL:https://www.theseus-h4c.eu/event/theseus-h4c-presents-digital-pathways-for-regional-circularity-mfa-projections-and-digital-product-passports/
LOCATION:Online\, Online
CATEGORIES:Past
ATTACH;FMTTYPE=image/png:https://www.theseus-h4c.eu/wp-content/uploads/2026/04/Hubs4Circularity-2.png
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260305
DTEND;VALUE=DATE:20260306
DTSTAMP:20260610T150432
CREATED:20260305T082553Z
LAST-MODIFIED:20260430T084638Z
UID:4973-1772668800-1772755199@www.theseus-h4c.eu
SUMMARY:Upcycling Municipal Waste into Circular Packaging Solutions
DESCRIPTION:Enabling Circular Water Management at Urban and Regional Scale				\n				\n				\n					\n				\n		\n					\n		\n				\n				\n																														\n				\n				\n		\n				\n				\n					\n\n\n\n\n\n				\n				\n				\n				\n				\n									The Water Symbiotic Flows pilot demonstrates approaches for managing urban water and wastewater flows\, as circular urban resources. The pilot integrates decentralised and centralised solutions to recover water\, nutrients\, and energy\, supporting climate resilience and long-term sustainability in urban and peri-urban environments. 								\n				\n				\n				\n									The problem Urban water systems across Europe are under growing pressure from climate change\, population density\, and competing demands for freshwater. Traditional linear water management models treat wastewater and sewage sludge primarily as liabilities\, resulting in high resource losses\, increased energy consumption\, and environmental stress. 								\n				\n		\n				\n				\n									Even in regions with well-developed water infrastructure\, cities face recurring challenges related to water scarcity\, flood risks\, and the rising cost and energy intensity of water treatment. Opportunities to recover treated water\, nutrients\, and energy remain largely underexploited\, limiting the transition toward more resilient and circular water systems. 								\n				\n									\n				\n				\n									These challenges are particularly acute in water-stressed regions. In Attica\, Greece\, climate change is intensifying heatwaves and water scarcity during summer months\, placing increasing pressure on freshwater resources. Current systems rely heavily on potable water for irrigation and other non-potable uses\, while wastewater treatment remains energy-intensive and largely centralised. 								\n				\n				\n				\n									Additional barriers include: Infrastructure limitations: Integrating decentralised water treatment at the point of demand faces technical\, financial\, and regulatory challenges\, despite its potential to reduce system-wide energy use and losses.Wasteful by-products: Sewage sludge management is costly and complex. Drying and incineration involve high capital and operational costs\, while land application is difficult in dense urban contexts.Safety concerns: Reuse of treated wastewater for agriculture requires strict control of pathogens and emerging contaminants\, in line with the EU Water Reuse Regulation (EU) 2020/741.As a result\, valuable water\, nutrients\, and energy are lost\, while cities face rising water scarcity risks\, higher treatment costs\, and reduced adaptive capacity to climate impacts. 								\n				\n				\n				\n									What THESEUS is doing THESEUS is implementing a comprehensive set of solutions\, bridging the gap between urban water management and circular agriculture. Decentralised sewer mining: Sewer mining units based on membrane bioreactor technology abstract wastewater directly from local sewers\, treat it on-site\, and reuse it for irrigating urban green spaces\, including parks in Attica (Klonaridi – Fix Park). This reduces freshwater demand and helps mitigate urban heat stress.Rainwater harvesting and urban green spaces: Rainwater harvesting systems are implemented at the 21st Primary School of Athens as a first application\, where collected rainwater is used to irrigate rooftop and yard green spaces. In parallel small-scale composting units treat biowaste and produce compost applied within the on-site green areas\, with similar systems planned for additional residences and an educational building.Nature-based Solutions (NbS): Urban parks are redesigned using solutions such as rain gardens and bioswales (in the KAPAPS park of Athens) to harvest and manage rainwater and stormwater. These interventions reduce flood risks while providing alternative water sources for urban and industrial uses.Centralised reclaimed water: In Eastern Attica\, the project assesses the reuse of treated wastewater from a WWTP (Koropi-Peania) for agricultural irrigation. The activities focus on evaluating the fate and potential accumulation of emerging contaminants in reclaimed water\, soil and crops\, as well as the effects of reclaimed water on crop development and soil health\, feeding into the development of a Risk Management Plan in line with the EU Water Reuse Regulation 2020/741.Sludge valorisation via pyrolysis: Sewage sludge from major wastewater treatment plants\, at Psyttalia\, is treated using fast pyrolysis and torrefaction. These processes convert sludge into bio-oil\, gas\, and biochar\, transforming a disposal challenge into an energy and material resource.								\n				\n				\n				\n																														\n				\n				\n				\n									All solutions are implemented in real urban and peri-urban environments through a mix of new pilot installations and actions linked to existing water and wastewater systems The pilot applies a systemic approach that integrates water reuse\, risk-based safety validation\, and high-value resource recovery within urban and regional water systems. Beyond disposal: Instead of focusing on sludge drying or incineration\, the pilot applies advanced thermal processes to recover energy carriers and biochar\, creating new circular value chains from wastewater residues.Risk-based safety validation: The pilot conducts detailed risk assessments for emerging contaminants\, including pharmaceuticals and personal care products\, in crops irrigated with reclaimed water. This supports compliance with EU Regulation 2020/741 and builds confidence for agricultural uptake.System-level planning: Rather than isolated demonstrations\, the pilot feeds into a co-developed Strategic Regional Master Plan for Circularity. This plan incorporates system design\, pricing models\, and governance considerations\, enabling future investments by the Region of Attica.								\n				\n				\n				\n									Expected outcomes and impact The pilot aims to establish a blueprint for reducing freshwater consumption and closing the loop on wastewater solids. Quantitative targets: The goal is to reduce freshwater consumption for urban green irrigation by 50%.Flood mitigation impacts: Nature-based solutions are expected to reduce rainfall runoff volumes by approximately 15% and peak discharge by up to 40%\, significantly lowering flood risks in intervention areas.Policy and investment uptake: The ultimate output is the adoption of the Strategic Master Plan by local authorities\, enabling future investments in circular water systems across the wider Attica region.
URL:https://www.theseus-h4c.eu/event/upcycling-municipal-waste-into-circular-packaging-solutions/
LOCATION:Online\, Online
CATEGORIES:Past
ATTACH;FMTTYPE=image/png:https://www.theseus-h4c.eu/wp-content/uploads/2026/03/Pilots-post-MSW.png
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260302
DTEND;VALUE=DATE:20260303
DTSTAMP:20260610T150432
CREATED:20260430T090944Z
LAST-MODIFIED:20260430T092928Z
UID:5064-1772409600-1772495999@www.theseus-h4c.eu
SUMMARY:THESEUS transforms a school rooftop into a living classroom for circular water management
DESCRIPTION:Enabling Circular Water Management at Urban and Regional Scale				\n				\n				\n					\n				\n		\n					\n		\n				\n				\n																														\n				\n				\n		\n				\n				\n					\n\n\n\n\n\n				\n				\n				\n				\n				\n									The Water Symbiotic Flows pilot demonstrates approaches for managing urban water and wastewater flows\, as circular urban resources. The pilot integrates decentralised and centralised solutions to recover water\, nutrients\, and energy\, supporting climate resilience and long-term sustainability in urban and peri-urban environments. 								\n				\n				\n				\n									The problem Urban water systems across Europe are under growing pressure from climate change\, population density\, and competing demands for freshwater. Traditional linear water management models treat wastewater and sewage sludge primarily as liabilities\, resulting in high resource losses\, increased energy consumption\, and environmental stress. 								\n				\n		\n				\n				\n									Even in regions with well-developed water infrastructure\, cities face recurring challenges related to water scarcity\, flood risks\, and the rising cost and energy intensity of water treatment. Opportunities to recover treated water\, nutrients\, and energy remain largely underexploited\, limiting the transition toward more resilient and circular water systems. 								\n				\n									\n				\n				\n									These challenges are particularly acute in water-stressed regions. In Attica\, Greece\, climate change is intensifying heatwaves and water scarcity during summer months\, placing increasing pressure on freshwater resources. Current systems rely heavily on potable water for irrigation and other non-potable uses\, while wastewater treatment remains energy-intensive and largely centralised. 								\n				\n				\n				\n									Additional barriers include: Infrastructure limitations: Integrating decentralised water treatment at the point of demand faces technical\, financial\, and regulatory challenges\, despite its potential to reduce system-wide energy use and losses.Wasteful by-products: Sewage sludge management is costly and complex. Drying and incineration involve high capital and operational costs\, while land application is difficult in dense urban contexts.Safety concerns: Reuse of treated wastewater for agriculture requires strict control of pathogens and emerging contaminants\, in line with the EU Water Reuse Regulation (EU) 2020/741.As a result\, valuable water\, nutrients\, and energy are lost\, while cities face rising water scarcity risks\, higher treatment costs\, and reduced adaptive capacity to climate impacts. 								\n				\n				\n				\n									What THESEUS is doing THESEUS is implementing a comprehensive set of solutions\, bridging the gap between urban water management and circular agriculture. Decentralised sewer mining: Sewer mining units based on membrane bioreactor technology abstract wastewater directly from local sewers\, treat it on-site\, and reuse it for irrigating urban green spaces\, including parks in Attica (Klonaridi – Fix Park). This reduces freshwater demand and helps mitigate urban heat stress.Rainwater harvesting and urban green spaces: Rainwater harvesting systems are implemented at the 21st Primary School of Athens as a first application\, where collected rainwater is used to irrigate rooftop and yard green spaces. In parallel small-scale composting units treat biowaste and produce compost applied within the on-site green areas\, with similar systems planned for additional residences and an educational building.Nature-based Solutions (NbS): Urban parks are redesigned using solutions such as rain gardens and bioswales (in the KAPAPS park of Athens) to harvest and manage rainwater and stormwater. These interventions reduce flood risks while providing alternative water sources for urban and industrial uses.Centralised reclaimed water: In Eastern Attica\, the project assesses the reuse of treated wastewater from a WWTP (Koropi-Peania) for agricultural irrigation. The activities focus on evaluating the fate and potential accumulation of emerging contaminants in reclaimed water\, soil and crops\, as well as the effects of reclaimed water on crop development and soil health\, feeding into the development of a Risk Management Plan in line with the EU Water Reuse Regulation 2020/741.Sludge valorisation via pyrolysis: Sewage sludge from major wastewater treatment plants\, at Psyttalia\, is treated using fast pyrolysis and torrefaction. These processes convert sludge into bio-oil\, gas\, and biochar\, transforming a disposal challenge into an energy and material resource.								\n				\n				\n				\n																														\n				\n				\n				\n									All solutions are implemented in real urban and peri-urban environments through a mix of new pilot installations and actions linked to existing water and wastewater systems The pilot applies a systemic approach that integrates water reuse\, risk-based safety validation\, and high-value resource recovery within urban and regional water systems. Beyond disposal: Instead of focusing on sludge drying or incineration\, the pilot applies advanced thermal processes to recover energy carriers and biochar\, creating new circular value chains from wastewater residues.Risk-based safety validation: The pilot conducts detailed risk assessments for emerging contaminants\, including pharmaceuticals and personal care products\, in crops irrigated with reclaimed water. This supports compliance with EU Regulation 2020/741 and builds confidence for agricultural uptake.System-level planning: Rather than isolated demonstrations\, the pilot feeds into a co-developed Strategic Regional Master Plan for Circularity. This plan incorporates system design\, pricing models\, and governance considerations\, enabling future investments by the Region of Attica.								\n				\n				\n				\n									Expected outcomes and impact The pilot aims to establish a blueprint for reducing freshwater consumption and closing the loop on wastewater solids. Quantitative targets: The goal is to reduce freshwater consumption for urban green irrigation by 50%.Flood mitigation impacts: Nature-based solutions are expected to reduce rainfall runoff volumes by approximately 15% and peak discharge by up to 40%\, significantly lowering flood risks in intervention areas.Policy and investment uptake: The ultimate output is the adoption of the Strategic Master Plan by local authorities\, enabling future investments in circular water systems across the wider Attica region.
URL:https://www.theseus-h4c.eu/event/theseus-transforms-a-school-rooftop-into-a-living-classroom-for-circular-water-management/
LOCATION:Online\, Online
CATEGORIES:Past
ATTACH;FMTTYPE=image/jpeg:https://www.theseus-h4c.eu/wp-content/uploads/2026/04/1772193362120.jpeg
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260228
DTEND;VALUE=DATE:20260301
DTSTAMP:20260610T150432
CREATED:20260312T113421Z
LAST-MODIFIED:20260430T084323Z
UID:4955-1772236800-1772323199@www.theseus-h4c.eu
SUMMARY:New scientific publication on energy system modelling in Greece
DESCRIPTION:Enabling Circular Water Management at Urban and Regional Scale				\n				\n				\n					\n				\n		\n					\n		\n				\n				\n																														\n				\n				\n		\n				\n				\n					\n\n\n\n\n\n				\n				\n				\n				\n				\n									The Water Symbiotic Flows pilot demonstrates approaches for managing urban water and wastewater flows\, as circular urban resources. The pilot integrates decentralised and centralised solutions to recover water\, nutrients\, and energy\, supporting climate resilience and long-term sustainability in urban and peri-urban environments. 								\n				\n				\n				\n									The problem Urban water systems across Europe are under growing pressure from climate change\, population density\, and competing demands for freshwater. Traditional linear water management models treat wastewater and sewage sludge primarily as liabilities\, resulting in high resource losses\, increased energy consumption\, and environmental stress. 								\n				\n		\n				\n				\n									Even in regions with well-developed water infrastructure\, cities face recurring challenges related to water scarcity\, flood risks\, and the rising cost and energy intensity of water treatment. Opportunities to recover treated water\, nutrients\, and energy remain largely underexploited\, limiting the transition toward more resilient and circular water systems. 								\n				\n									\n				\n				\n									These challenges are particularly acute in water-stressed regions. In Attica\, Greece\, climate change is intensifying heatwaves and water scarcity during summer months\, placing increasing pressure on freshwater resources. Current systems rely heavily on potable water for irrigation and other non-potable uses\, while wastewater treatment remains energy-intensive and largely centralised. 								\n				\n				\n				\n									Additional barriers include: Infrastructure limitations: Integrating decentralised water treatment at the point of demand faces technical\, financial\, and regulatory challenges\, despite its potential to reduce system-wide energy use and losses.Wasteful by-products: Sewage sludge management is costly and complex. Drying and incineration involve high capital and operational costs\, while land application is difficult in dense urban contexts.Safety concerns: Reuse of treated wastewater for agriculture requires strict control of pathogens and emerging contaminants\, in line with the EU Water Reuse Regulation (EU) 2020/741.As a result\, valuable water\, nutrients\, and energy are lost\, while cities face rising water scarcity risks\, higher treatment costs\, and reduced adaptive capacity to climate impacts. 								\n				\n				\n				\n									What THESEUS is doing THESEUS is implementing a comprehensive set of solutions\, bridging the gap between urban water management and circular agriculture. Decentralised sewer mining: Sewer mining units based on membrane bioreactor technology abstract wastewater directly from local sewers\, treat it on-site\, and reuse it for irrigating urban green spaces\, including parks in Attica (Klonaridi – Fix Park). This reduces freshwater demand and helps mitigate urban heat stress.Rainwater harvesting and urban green spaces: Rainwater harvesting systems are implemented at the 21st Primary School of Athens as a first application\, where collected rainwater is used to irrigate rooftop and yard green spaces. In parallel small-scale composting units treat biowaste and produce compost applied within the on-site green areas\, with similar systems planned for additional residences and an educational building.Nature-based Solutions (NbS): Urban parks are redesigned using solutions such as rain gardens and bioswales (in the KAPAPS park of Athens) to harvest and manage rainwater and stormwater. These interventions reduce flood risks while providing alternative water sources for urban and industrial uses.Centralised reclaimed water: In Eastern Attica\, the project assesses the reuse of treated wastewater from a WWTP (Koropi-Peania) for agricultural irrigation. The activities focus on evaluating the fate and potential accumulation of emerging contaminants in reclaimed water\, soil and crops\, as well as the effects of reclaimed water on crop development and soil health\, feeding into the development of a Risk Management Plan in line with the EU Water Reuse Regulation 2020/741.Sludge valorisation via pyrolysis: Sewage sludge from major wastewater treatment plants\, at Psyttalia\, is treated using fast pyrolysis and torrefaction. These processes convert sludge into bio-oil\, gas\, and biochar\, transforming a disposal challenge into an energy and material resource.								\n				\n				\n				\n																														\n				\n				\n				\n									All solutions are implemented in real urban and peri-urban environments through a mix of new pilot installations and actions linked to existing water and wastewater systems The pilot applies a systemic approach that integrates water reuse\, risk-based safety validation\, and high-value resource recovery within urban and regional water systems. Beyond disposal: Instead of focusing on sludge drying or incineration\, the pilot applies advanced thermal processes to recover energy carriers and biochar\, creating new circular value chains from wastewater residues.Risk-based safety validation: The pilot conducts detailed risk assessments for emerging contaminants\, including pharmaceuticals and personal care products\, in crops irrigated with reclaimed water. This supports compliance with EU Regulation 2020/741 and builds confidence for agricultural uptake.System-level planning: Rather than isolated demonstrations\, the pilot feeds into a co-developed Strategic Regional Master Plan for Circularity. This plan incorporates system design\, pricing models\, and governance considerations\, enabling future investments by the Region of Attica.								\n				\n				\n				\n									Expected outcomes and impact The pilot aims to establish a blueprint for reducing freshwater consumption and closing the loop on wastewater solids. Quantitative targets: The goal is to reduce freshwater consumption for urban green irrigation by 50%.Flood mitigation impacts: Nature-based solutions are expected to reduce rainfall runoff volumes by approximately 15% and peak discharge by up to 40%\, significantly lowering flood risks in intervention areas.Policy and investment uptake: The ultimate output is the adoption of the Strategic Master Plan by local authorities\, enabling future investments in circular water systems across the wider Attica region.
URL:https://www.theseus-h4c.eu/event/from-urban-textile-waste-to-high-value-circular-materials-duplicate-4938/
LOCATION:Online\, Online
CATEGORIES:Past
ATTACH;FMTTYPE=image/png:https://www.theseus-h4c.eu/wp-content/uploads/2026/03/Untitled-design-5.png
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260204
DTEND;VALUE=DATE:20260205
DTSTAMP:20260610T150432
CREATED:20260205T141820Z
LAST-MODIFIED:20260430T084849Z
UID:4938-1770163200-1770249599@www.theseus-h4c.eu
SUMMARY:From Urban Textile Waste to High-Value Circular Materials
DESCRIPTION:Enabling Circular Water Management at Urban and Regional Scale				\n				\n				\n					\n				\n		\n					\n		\n				\n				\n																														\n				\n				\n		\n				\n				\n					\n\n\n\n\n\n				\n				\n				\n				\n				\n									The Water Symbiotic Flows pilot demonstrates approaches for managing urban water and wastewater flows\, as circular urban resources. The pilot integrates decentralised and centralised solutions to recover water\, nutrients\, and energy\, supporting climate resilience and long-term sustainability in urban and peri-urban environments. 								\n				\n				\n				\n									The problem Urban water systems across Europe are under growing pressure from climate change\, population density\, and competing demands for freshwater. Traditional linear water management models treat wastewater and sewage sludge primarily as liabilities\, resulting in high resource losses\, increased energy consumption\, and environmental stress. 								\n				\n		\n				\n				\n									Even in regions with well-developed water infrastructure\, cities face recurring challenges related to water scarcity\, flood risks\, and the rising cost and energy intensity of water treatment. Opportunities to recover treated water\, nutrients\, and energy remain largely underexploited\, limiting the transition toward more resilient and circular water systems. 								\n				\n									\n				\n				\n									These challenges are particularly acute in water-stressed regions. In Attica\, Greece\, climate change is intensifying heatwaves and water scarcity during summer months\, placing increasing pressure on freshwater resources. Current systems rely heavily on potable water for irrigation and other non-potable uses\, while wastewater treatment remains energy-intensive and largely centralised. 								\n				\n				\n				\n									Additional barriers include: Infrastructure limitations: Integrating decentralised water treatment at the point of demand faces technical\, financial\, and regulatory challenges\, despite its potential to reduce system-wide energy use and losses.Wasteful by-products: Sewage sludge management is costly and complex. Drying and incineration involve high capital and operational costs\, while land application is difficult in dense urban contexts.Safety concerns: Reuse of treated wastewater for agriculture requires strict control of pathogens and emerging contaminants\, in line with the EU Water Reuse Regulation (EU) 2020/741.As a result\, valuable water\, nutrients\, and energy are lost\, while cities face rising water scarcity risks\, higher treatment costs\, and reduced adaptive capacity to climate impacts. 								\n				\n				\n				\n									What THESEUS is doing THESEUS is implementing a comprehensive set of solutions\, bridging the gap between urban water management and circular agriculture. Decentralised sewer mining: Sewer mining units based on membrane bioreactor technology abstract wastewater directly from local sewers\, treat it on-site\, and reuse it for irrigating urban green spaces\, including parks in Attica (Klonaridi – Fix Park). This reduces freshwater demand and helps mitigate urban heat stress.Rainwater harvesting and urban green spaces: Rainwater harvesting systems are implemented at the 21st Primary School of Athens as a first application\, where collected rainwater is used to irrigate rooftop and yard green spaces. In parallel small-scale composting units treat biowaste and produce compost applied within the on-site green areas\, with similar systems planned for additional residences and an educational building.Nature-based Solutions (NbS): Urban parks are redesigned using solutions such as rain gardens and bioswales (in the KAPAPS park of Athens) to harvest and manage rainwater and stormwater. These interventions reduce flood risks while providing alternative water sources for urban and industrial uses.Centralised reclaimed water: In Eastern Attica\, the project assesses the reuse of treated wastewater from a WWTP (Koropi-Peania) for agricultural irrigation. The activities focus on evaluating the fate and potential accumulation of emerging contaminants in reclaimed water\, soil and crops\, as well as the effects of reclaimed water on crop development and soil health\, feeding into the development of a Risk Management Plan in line with the EU Water Reuse Regulation 2020/741.Sludge valorisation via pyrolysis: Sewage sludge from major wastewater treatment plants\, at Psyttalia\, is treated using fast pyrolysis and torrefaction. These processes convert sludge into bio-oil\, gas\, and biochar\, transforming a disposal challenge into an energy and material resource.								\n				\n				\n				\n																														\n				\n				\n				\n									All solutions are implemented in real urban and peri-urban environments through a mix of new pilot installations and actions linked to existing water and wastewater systems The pilot applies a systemic approach that integrates water reuse\, risk-based safety validation\, and high-value resource recovery within urban and regional water systems. Beyond disposal: Instead of focusing on sludge drying or incineration\, the pilot applies advanced thermal processes to recover energy carriers and biochar\, creating new circular value chains from wastewater residues.Risk-based safety validation: The pilot conducts detailed risk assessments for emerging contaminants\, including pharmaceuticals and personal care products\, in crops irrigated with reclaimed water. This supports compliance with EU Regulation 2020/741 and builds confidence for agricultural uptake.System-level planning: Rather than isolated demonstrations\, the pilot feeds into a co-developed Strategic Regional Master Plan for Circularity. This plan incorporates system design\, pricing models\, and governance considerations\, enabling future investments by the Region of Attica.								\n				\n				\n				\n									Expected outcomes and impact The pilot aims to establish a blueprint for reducing freshwater consumption and closing the loop on wastewater solids. Quantitative targets: The goal is to reduce freshwater consumption for urban green irrigation by 50%.Flood mitigation impacts: Nature-based solutions are expected to reduce rainfall runoff volumes by approximately 15% and peak discharge by up to 40%\, significantly lowering flood risks in intervention areas.Policy and investment uptake: The ultimate output is the adoption of the Strategic Master Plan by local authorities\, enabling future investments in circular water systems across the wider Attica region.
URL:https://www.theseus-h4c.eu/event/from-urban-textile-waste-to-high-value-circular-materials/
LOCATION:Online\, Online
CATEGORIES:Past
ATTACH;FMTTYPE=image/png:https://www.theseus-h4c.eu/wp-content/uploads/2026/02/Pilots-post-textiles.png
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260130
DTEND;VALUE=DATE:20260131
DTSTAMP:20260610T150432
CREATED:20260205T131210Z
LAST-MODIFIED:20260430T084909Z
UID:4911-1769731200-1769817599@www.theseus-h4c.eu
SUMMARY:Closing the Loop on Construction Waste Through Industrial Symbiosis
DESCRIPTION:Enabling Circular Water Management at Urban and Regional Scale				\n				\n				\n					\n				\n		\n					\n		\n				\n				\n																														\n				\n				\n		\n				\n				\n					\n\n\n\n\n\n				\n				\n				\n				\n				\n									The Water Symbiotic Flows pilot demonstrates approaches for managing urban water and wastewater flows\, as circular urban resources. The pilot integrates decentralised and centralised solutions to recover water\, nutrients\, and energy\, supporting climate resilience and long-term sustainability in urban and peri-urban environments. 								\n				\n				\n				\n									The problem Urban water systems across Europe are under growing pressure from climate change\, population density\, and competing demands for freshwater. Traditional linear water management models treat wastewater and sewage sludge primarily as liabilities\, resulting in high resource losses\, increased energy consumption\, and environmental stress. 								\n				\n		\n				\n				\n									Even in regions with well-developed water infrastructure\, cities face recurring challenges related to water scarcity\, flood risks\, and the rising cost and energy intensity of water treatment. Opportunities to recover treated water\, nutrients\, and energy remain largely underexploited\, limiting the transition toward more resilient and circular water systems. 								\n				\n									\n				\n				\n									These challenges are particularly acute in water-stressed regions. In Attica\, Greece\, climate change is intensifying heatwaves and water scarcity during summer months\, placing increasing pressure on freshwater resources. Current systems rely heavily on potable water for irrigation and other non-potable uses\, while wastewater treatment remains energy-intensive and largely centralised. 								\n				\n				\n				\n									Additional barriers include: Infrastructure limitations: Integrating decentralised water treatment at the point of demand faces technical\, financial\, and regulatory challenges\, despite its potential to reduce system-wide energy use and losses.Wasteful by-products: Sewage sludge management is costly and complex. Drying and incineration involve high capital and operational costs\, while land application is difficult in dense urban contexts.Safety concerns: Reuse of treated wastewater for agriculture requires strict control of pathogens and emerging contaminants\, in line with the EU Water Reuse Regulation (EU) 2020/741.As a result\, valuable water\, nutrients\, and energy are lost\, while cities face rising water scarcity risks\, higher treatment costs\, and reduced adaptive capacity to climate impacts. 								\n				\n				\n				\n									What THESEUS is doing THESEUS is implementing a comprehensive set of solutions\, bridging the gap between urban water management and circular agriculture. Decentralised sewer mining: Sewer mining units based on membrane bioreactor technology abstract wastewater directly from local sewers\, treat it on-site\, and reuse it for irrigating urban green spaces\, including parks in Attica (Klonaridi – Fix Park). This reduces freshwater demand and helps mitigate urban heat stress.Rainwater harvesting and urban green spaces: Rainwater harvesting systems are implemented at the 21st Primary School of Athens as a first application\, where collected rainwater is used to irrigate rooftop and yard green spaces. In parallel small-scale composting units treat biowaste and produce compost applied within the on-site green areas\, with similar systems planned for additional residences and an educational building.Nature-based Solutions (NbS): Urban parks are redesigned using solutions such as rain gardens and bioswales (in the KAPAPS park of Athens) to harvest and manage rainwater and stormwater. These interventions reduce flood risks while providing alternative water sources for urban and industrial uses.Centralised reclaimed water: In Eastern Attica\, the project assesses the reuse of treated wastewater from a WWTP (Koropi-Peania) for agricultural irrigation. The activities focus on evaluating the fate and potential accumulation of emerging contaminants in reclaimed water\, soil and crops\, as well as the effects of reclaimed water on crop development and soil health\, feeding into the development of a Risk Management Plan in line with the EU Water Reuse Regulation 2020/741.Sludge valorisation via pyrolysis: Sewage sludge from major wastewater treatment plants\, at Psyttalia\, is treated using fast pyrolysis and torrefaction. These processes convert sludge into bio-oil\, gas\, and biochar\, transforming a disposal challenge into an energy and material resource.								\n				\n				\n				\n																														\n				\n				\n				\n									All solutions are implemented in real urban and peri-urban environments through a mix of new pilot installations and actions linked to existing water and wastewater systems The pilot applies a systemic approach that integrates water reuse\, risk-based safety validation\, and high-value resource recovery within urban and regional water systems. Beyond disposal: Instead of focusing on sludge drying or incineration\, the pilot applies advanced thermal processes to recover energy carriers and biochar\, creating new circular value chains from wastewater residues.Risk-based safety validation: The pilot conducts detailed risk assessments for emerging contaminants\, including pharmaceuticals and personal care products\, in crops irrigated with reclaimed water. This supports compliance with EU Regulation 2020/741 and builds confidence for agricultural uptake.System-level planning: Rather than isolated demonstrations\, the pilot feeds into a co-developed Strategic Regional Master Plan for Circularity. This plan incorporates system design\, pricing models\, and governance considerations\, enabling future investments by the Region of Attica.								\n				\n				\n				\n									Expected outcomes and impact The pilot aims to establish a blueprint for reducing freshwater consumption and closing the loop on wastewater solids. Quantitative targets: The goal is to reduce freshwater consumption for urban green irrigation by 50%.Flood mitigation impacts: Nature-based solutions are expected to reduce rainfall runoff volumes by approximately 15% and peak discharge by up to 40%\, significantly lowering flood risks in intervention areas.Policy and investment uptake: The ultimate output is the adoption of the Strategic Master Plan by local authorities\, enabling future investments in circular water systems across the wider Attica region.
URL:https://www.theseus-h4c.eu/event/closing-the-loop-on-construction-waste-through-industrial-symbiosis/
LOCATION:Online\, Online
CATEGORIES:Past
ATTACH;FMTTYPE=image/png:https://www.theseus-h4c.eu/wp-content/uploads/2026/02/Pilots-post-2.png
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260127
DTEND;VALUE=DATE:20260128
DTSTAMP:20260610T150432
CREATED:20260430T093812Z
LAST-MODIFIED:20260430T110117Z
UID:5085-1769472000-1769558399@www.theseus-h4c.eu
SUMMARY:From foundations to development: THESEUS H4C releases Newsletter Issue 2
DESCRIPTION:Enabling Circular Water Management at Urban and Regional Scale				\n				\n				\n					\n				\n		\n					\n		\n				\n				\n																														\n				\n				\n		\n				\n				\n					\n\n\n\n\n\n				\n				\n				\n				\n				\n									The Water Symbiotic Flows pilot demonstrates approaches for managing urban water and wastewater flows\, as circular urban resources. The pilot integrates decentralised and centralised solutions to recover water\, nutrients\, and energy\, supporting climate resilience and long-term sustainability in urban and peri-urban environments. 								\n				\n				\n				\n									The problem Urban water systems across Europe are under growing pressure from climate change\, population density\, and competing demands for freshwater. Traditional linear water management models treat wastewater and sewage sludge primarily as liabilities\, resulting in high resource losses\, increased energy consumption\, and environmental stress. 								\n				\n		\n				\n				\n									Even in regions with well-developed water infrastructure\, cities face recurring challenges related to water scarcity\, flood risks\, and the rising cost and energy intensity of water treatment. Opportunities to recover treated water\, nutrients\, and energy remain largely underexploited\, limiting the transition toward more resilient and circular water systems. 								\n				\n									\n				\n				\n									These challenges are particularly acute in water-stressed regions. In Attica\, Greece\, climate change is intensifying heatwaves and water scarcity during summer months\, placing increasing pressure on freshwater resources. Current systems rely heavily on potable water for irrigation and other non-potable uses\, while wastewater treatment remains energy-intensive and largely centralised. 								\n				\n				\n				\n									Additional barriers include: Infrastructure limitations: Integrating decentralised water treatment at the point of demand faces technical\, financial\, and regulatory challenges\, despite its potential to reduce system-wide energy use and losses.Wasteful by-products: Sewage sludge management is costly and complex. Drying and incineration involve high capital and operational costs\, while land application is difficult in dense urban contexts.Safety concerns: Reuse of treated wastewater for agriculture requires strict control of pathogens and emerging contaminants\, in line with the EU Water Reuse Regulation (EU) 2020/741.As a result\, valuable water\, nutrients\, and energy are lost\, while cities face rising water scarcity risks\, higher treatment costs\, and reduced adaptive capacity to climate impacts. 								\n				\n				\n				\n									What THESEUS is doing THESEUS is implementing a comprehensive set of solutions\, bridging the gap between urban water management and circular agriculture. Decentralised sewer mining: Sewer mining units based on membrane bioreactor technology abstract wastewater directly from local sewers\, treat it on-site\, and reuse it for irrigating urban green spaces\, including parks in Attica (Klonaridi – Fix Park). This reduces freshwater demand and helps mitigate urban heat stress.Rainwater harvesting and urban green spaces: Rainwater harvesting systems are implemented at the 21st Primary School of Athens as a first application\, where collected rainwater is used to irrigate rooftop and yard green spaces. In parallel small-scale composting units treat biowaste and produce compost applied within the on-site green areas\, with similar systems planned for additional residences and an educational building.Nature-based Solutions (NbS): Urban parks are redesigned using solutions such as rain gardens and bioswales (in the KAPAPS park of Athens) to harvest and manage rainwater and stormwater. These interventions reduce flood risks while providing alternative water sources for urban and industrial uses.Centralised reclaimed water: In Eastern Attica\, the project assesses the reuse of treated wastewater from a WWTP (Koropi-Peania) for agricultural irrigation. The activities focus on evaluating the fate and potential accumulation of emerging contaminants in reclaimed water\, soil and crops\, as well as the effects of reclaimed water on crop development and soil health\, feeding into the development of a Risk Management Plan in line with the EU Water Reuse Regulation 2020/741.Sludge valorisation via pyrolysis: Sewage sludge from major wastewater treatment plants\, at Psyttalia\, is treated using fast pyrolysis and torrefaction. These processes convert sludge into bio-oil\, gas\, and biochar\, transforming a disposal challenge into an energy and material resource.								\n				\n				\n				\n																														\n				\n				\n				\n									All solutions are implemented in real urban and peri-urban environments through a mix of new pilot installations and actions linked to existing water and wastewater systems The pilot applies a systemic approach that integrates water reuse\, risk-based safety validation\, and high-value resource recovery within urban and regional water systems. Beyond disposal: Instead of focusing on sludge drying or incineration\, the pilot applies advanced thermal processes to recover energy carriers and biochar\, creating new circular value chains from wastewater residues.Risk-based safety validation: The pilot conducts detailed risk assessments for emerging contaminants\, including pharmaceuticals and personal care products\, in crops irrigated with reclaimed water. This supports compliance with EU Regulation 2020/741 and builds confidence for agricultural uptake.System-level planning: Rather than isolated demonstrations\, the pilot feeds into a co-developed Strategic Regional Master Plan for Circularity. This plan incorporates system design\, pricing models\, and governance considerations\, enabling future investments by the Region of Attica.								\n				\n				\n				\n									Expected outcomes and impact The pilot aims to establish a blueprint for reducing freshwater consumption and closing the loop on wastewater solids. Quantitative targets: The goal is to reduce freshwater consumption for urban green irrigation by 50%.Flood mitigation impacts: Nature-based solutions are expected to reduce rainfall runoff volumes by approximately 15% and peak discharge by up to 40%\, significantly lowering flood risks in intervention areas.Policy and investment uptake: The ultimate output is the adoption of the Strategic Master Plan by local authorities\, enabling future investments in circular water systems across the wider Attica region.
URL:https://www.theseus-h4c.eu/event/2nd-newsletter-is-out/
LOCATION:Online\, Online
CATEGORIES:Past
ATTACH;FMTTYPE=image/png:https://www.theseus-h4c.eu/wp-content/uploads/2026/04/ChatGPT-Image-Apr-30-2026-01_55_07-PM.png
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260114
DTEND;VALUE=DATE:20260115
DTSTAMP:20260610T150433
CREATED:20260126T073321Z
LAST-MODIFIED:20260430T085018Z
UID:4860-1768348800-1768435199@www.theseus-h4c.eu
SUMMARY:Decarbonising Urban Heating and Cooling Through Energy Symbiosis
DESCRIPTION:Enabling Circular Water Management at Urban and Regional Scale				\n				\n				\n					\n				\n		\n					\n		\n				\n				\n																														\n				\n				\n		\n				\n				\n					\n\n\n\n\n\n				\n				\n				\n				\n				\n									The Water Symbiotic Flows pilot demonstrates approaches for managing urban water and wastewater flows\, as circular urban resources. The pilot integrates decentralised and centralised solutions to recover water\, nutrients\, and energy\, supporting climate resilience and long-term sustainability in urban and peri-urban environments. 								\n				\n				\n				\n									The problem Urban water systems across Europe are under growing pressure from climate change\, population density\, and competing demands for freshwater. Traditional linear water management models treat wastewater and sewage sludge primarily as liabilities\, resulting in high resource losses\, increased energy consumption\, and environmental stress. 								\n				\n		\n				\n				\n									Even in regions with well-developed water infrastructure\, cities face recurring challenges related to water scarcity\, flood risks\, and the rising cost and energy intensity of water treatment. Opportunities to recover treated water\, nutrients\, and energy remain largely underexploited\, limiting the transition toward more resilient and circular water systems. 								\n				\n									\n				\n				\n									These challenges are particularly acute in water-stressed regions. In Attica\, Greece\, climate change is intensifying heatwaves and water scarcity during summer months\, placing increasing pressure on freshwater resources. Current systems rely heavily on potable water for irrigation and other non-potable uses\, while wastewater treatment remains energy-intensive and largely centralised. 								\n				\n				\n				\n									Additional barriers include: Infrastructure limitations: Integrating decentralised water treatment at the point of demand faces technical\, financial\, and regulatory challenges\, despite its potential to reduce system-wide energy use and losses.Wasteful by-products: Sewage sludge management is costly and complex. Drying and incineration involve high capital and operational costs\, while land application is difficult in dense urban contexts.Safety concerns: Reuse of treated wastewater for agriculture requires strict control of pathogens and emerging contaminants\, in line with the EU Water Reuse Regulation (EU) 2020/741.As a result\, valuable water\, nutrients\, and energy are lost\, while cities face rising water scarcity risks\, higher treatment costs\, and reduced adaptive capacity to climate impacts. 								\n				\n				\n				\n									What THESEUS is doing THESEUS is implementing a comprehensive set of solutions\, bridging the gap between urban water management and circular agriculture. Decentralised sewer mining: Sewer mining units based on membrane bioreactor technology abstract wastewater directly from local sewers\, treat it on-site\, and reuse it for irrigating urban green spaces\, including parks in Attica (Klonaridi – Fix Park). This reduces freshwater demand and helps mitigate urban heat stress.Rainwater harvesting and urban green spaces: Rainwater harvesting systems are implemented at the 21st Primary School of Athens as a first application\, where collected rainwater is used to irrigate rooftop and yard green spaces. In parallel small-scale composting units treat biowaste and produce compost applied within the on-site green areas\, with similar systems planned for additional residences and an educational building.Nature-based Solutions (NbS): Urban parks are redesigned using solutions such as rain gardens and bioswales (in the KAPAPS park of Athens) to harvest and manage rainwater and stormwater. These interventions reduce flood risks while providing alternative water sources for urban and industrial uses.Centralised reclaimed water: In Eastern Attica\, the project assesses the reuse of treated wastewater from a WWTP (Koropi-Peania) for agricultural irrigation. The activities focus on evaluating the fate and potential accumulation of emerging contaminants in reclaimed water\, soil and crops\, as well as the effects of reclaimed water on crop development and soil health\, feeding into the development of a Risk Management Plan in line with the EU Water Reuse Regulation 2020/741.Sludge valorisation via pyrolysis: Sewage sludge from major wastewater treatment plants\, at Psyttalia\, is treated using fast pyrolysis and torrefaction. These processes convert sludge into bio-oil\, gas\, and biochar\, transforming a disposal challenge into an energy and material resource.								\n				\n				\n				\n																														\n				\n				\n				\n									All solutions are implemented in real urban and peri-urban environments through a mix of new pilot installations and actions linked to existing water and wastewater systems The pilot applies a systemic approach that integrates water reuse\, risk-based safety validation\, and high-value resource recovery within urban and regional water systems. Beyond disposal: Instead of focusing on sludge drying or incineration\, the pilot applies advanced thermal processes to recover energy carriers and biochar\, creating new circular value chains from wastewater residues.Risk-based safety validation: The pilot conducts detailed risk assessments for emerging contaminants\, including pharmaceuticals and personal care products\, in crops irrigated with reclaimed water. This supports compliance with EU Regulation 2020/741 and builds confidence for agricultural uptake.System-level planning: Rather than isolated demonstrations\, the pilot feeds into a co-developed Strategic Regional Master Plan for Circularity. This plan incorporates system design\, pricing models\, and governance considerations\, enabling future investments by the Region of Attica.								\n				\n				\n				\n									Expected outcomes and impact The pilot aims to establish a blueprint for reducing freshwater consumption and closing the loop on wastewater solids. Quantitative targets: The goal is to reduce freshwater consumption for urban green irrigation by 50%.Flood mitigation impacts: Nature-based solutions are expected to reduce rainfall runoff volumes by approximately 15% and peak discharge by up to 40%\, significantly lowering flood risks in intervention areas.Policy and investment uptake: The ultimate output is the adoption of the Strategic Master Plan by local authorities\, enabling future investments in circular water systems across the wider Attica region.
URL:https://www.theseus-h4c.eu/event/decarbonising-urban-heating-and-cooling-through-energy-symbiosis/
LOCATION:Online\, Online
CATEGORIES:Past
ATTACH;FMTTYPE=image/png:https://www.theseus-h4c.eu/wp-content/uploads/2026/01/PIlots-post.png
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20251210
DTEND;VALUE=DATE:20251211
DTSTAMP:20260610T150433
CREATED:20251219T142624Z
LAST-MODIFIED:20260430T085032Z
UID:4825-1765324800-1765411199@www.theseus-h4c.eu
SUMMARY:THESEUS H4C at the Arctic Cluster Team Partnership Event: Strengthening Circular Value Chains in the Arctic
DESCRIPTION:Enabling Circular Water Management at Urban and Regional Scale				\n				\n				\n					\n				\n		\n					\n		\n				\n				\n																														\n				\n				\n		\n				\n				\n					\n\n\n\n\n\n				\n				\n				\n				\n				\n									The Water Symbiotic Flows pilot demonstrates approaches for managing urban water and wastewater flows\, as circular urban resources. The pilot integrates decentralised and centralised solutions to recover water\, nutrients\, and energy\, supporting climate resilience and long-term sustainability in urban and peri-urban environments. 								\n				\n				\n				\n									The problem Urban water systems across Europe are under growing pressure from climate change\, population density\, and competing demands for freshwater. Traditional linear water management models treat wastewater and sewage sludge primarily as liabilities\, resulting in high resource losses\, increased energy consumption\, and environmental stress. 								\n				\n		\n				\n				\n									Even in regions with well-developed water infrastructure\, cities face recurring challenges related to water scarcity\, flood risks\, and the rising cost and energy intensity of water treatment. Opportunities to recover treated water\, nutrients\, and energy remain largely underexploited\, limiting the transition toward more resilient and circular water systems. 								\n				\n									\n				\n				\n									These challenges are particularly acute in water-stressed regions. In Attica\, Greece\, climate change is intensifying heatwaves and water scarcity during summer months\, placing increasing pressure on freshwater resources. Current systems rely heavily on potable water for irrigation and other non-potable uses\, while wastewater treatment remains energy-intensive and largely centralised. 								\n				\n				\n				\n									Additional barriers include: Infrastructure limitations: Integrating decentralised water treatment at the point of demand faces technical\, financial\, and regulatory challenges\, despite its potential to reduce system-wide energy use and losses.Wasteful by-products: Sewage sludge management is costly and complex. Drying and incineration involve high capital and operational costs\, while land application is difficult in dense urban contexts.Safety concerns: Reuse of treated wastewater for agriculture requires strict control of pathogens and emerging contaminants\, in line with the EU Water Reuse Regulation (EU) 2020/741.As a result\, valuable water\, nutrients\, and energy are lost\, while cities face rising water scarcity risks\, higher treatment costs\, and reduced adaptive capacity to climate impacts. 								\n				\n				\n				\n									What THESEUS is doing THESEUS is implementing a comprehensive set of solutions\, bridging the gap between urban water management and circular agriculture. Decentralised sewer mining: Sewer mining units based on membrane bioreactor technology abstract wastewater directly from local sewers\, treat it on-site\, and reuse it for irrigating urban green spaces\, including parks in Attica (Klonaridi – Fix Park). This reduces freshwater demand and helps mitigate urban heat stress.Rainwater harvesting and urban green spaces: Rainwater harvesting systems are implemented at the 21st Primary School of Athens as a first application\, where collected rainwater is used to irrigate rooftop and yard green spaces. In parallel small-scale composting units treat biowaste and produce compost applied within the on-site green areas\, with similar systems planned for additional residences and an educational building.Nature-based Solutions (NbS): Urban parks are redesigned using solutions such as rain gardens and bioswales (in the KAPAPS park of Athens) to harvest and manage rainwater and stormwater. These interventions reduce flood risks while providing alternative water sources for urban and industrial uses.Centralised reclaimed water: In Eastern Attica\, the project assesses the reuse of treated wastewater from a WWTP (Koropi-Peania) for agricultural irrigation. The activities focus on evaluating the fate and potential accumulation of emerging contaminants in reclaimed water\, soil and crops\, as well as the effects of reclaimed water on crop development and soil health\, feeding into the development of a Risk Management Plan in line with the EU Water Reuse Regulation 2020/741.Sludge valorisation via pyrolysis: Sewage sludge from major wastewater treatment plants\, at Psyttalia\, is treated using fast pyrolysis and torrefaction. These processes convert sludge into bio-oil\, gas\, and biochar\, transforming a disposal challenge into an energy and material resource.								\n				\n				\n				\n																														\n				\n				\n				\n									All solutions are implemented in real urban and peri-urban environments through a mix of new pilot installations and actions linked to existing water and wastewater systems The pilot applies a systemic approach that integrates water reuse\, risk-based safety validation\, and high-value resource recovery within urban and regional water systems. Beyond disposal: Instead of focusing on sludge drying or incineration\, the pilot applies advanced thermal processes to recover energy carriers and biochar\, creating new circular value chains from wastewater residues.Risk-based safety validation: The pilot conducts detailed risk assessments for emerging contaminants\, including pharmaceuticals and personal care products\, in crops irrigated with reclaimed water. This supports compliance with EU Regulation 2020/741 and builds confidence for agricultural uptake.System-level planning: Rather than isolated demonstrations\, the pilot feeds into a co-developed Strategic Regional Master Plan for Circularity. This plan incorporates system design\, pricing models\, and governance considerations\, enabling future investments by the Region of Attica.								\n				\n				\n				\n									Expected outcomes and impact The pilot aims to establish a blueprint for reducing freshwater consumption and closing the loop on wastewater solids. Quantitative targets: The goal is to reduce freshwater consumption for urban green irrigation by 50%.Flood mitigation impacts: Nature-based solutions are expected to reduce rainfall runoff volumes by approximately 15% and peak discharge by up to 40%\, significantly lowering flood risks in intervention areas.Policy and investment uptake: The ultimate output is the adoption of the Strategic Master Plan by local authorities\, enabling future investments in circular water systems across the wider Attica region.
URL:https://www.theseus-h4c.eu/event/theseus-at-the-arctic-cluster-team-partnership-event-strengthening-circular-value-chains-in-the-arctic/
LOCATION:Online\, Online
CATEGORIES:Past
ATTACH;FMTTYPE=image/jpeg:https://www.theseus-h4c.eu/wp-content/uploads/2025/12/1765817710095.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20251204
DTEND;VALUE=DATE:20251205
DTSTAMP:20260610T150433
CREATED:20251219T150359Z
LAST-MODIFIED:20260430T085042Z
UID:4844-1764806400-1764892799@www.theseus-h4c.eu
SUMMARY:THESEUS H4C engages young citizens in co-designing greener school environments in Athens
DESCRIPTION:Enabling Circular Water Management at Urban and Regional Scale				\n				\n				\n					\n				\n		\n					\n		\n				\n				\n																														\n				\n				\n		\n				\n				\n					\n\n\n\n\n\n				\n				\n				\n				\n				\n									The Water Symbiotic Flows pilot demonstrates approaches for managing urban water and wastewater flows\, as circular urban resources. The pilot integrates decentralised and centralised solutions to recover water\, nutrients\, and energy\, supporting climate resilience and long-term sustainability in urban and peri-urban environments. 								\n				\n				\n				\n									The problem Urban water systems across Europe are under growing pressure from climate change\, population density\, and competing demands for freshwater. Traditional linear water management models treat wastewater and sewage sludge primarily as liabilities\, resulting in high resource losses\, increased energy consumption\, and environmental stress. 								\n				\n		\n				\n				\n									Even in regions with well-developed water infrastructure\, cities face recurring challenges related to water scarcity\, flood risks\, and the rising cost and energy intensity of water treatment. Opportunities to recover treated water\, nutrients\, and energy remain largely underexploited\, limiting the transition toward more resilient and circular water systems. 								\n				\n									\n				\n				\n									These challenges are particularly acute in water-stressed regions. In Attica\, Greece\, climate change is intensifying heatwaves and water scarcity during summer months\, placing increasing pressure on freshwater resources. Current systems rely heavily on potable water for irrigation and other non-potable uses\, while wastewater treatment remains energy-intensive and largely centralised. 								\n				\n				\n				\n									Additional barriers include: Infrastructure limitations: Integrating decentralised water treatment at the point of demand faces technical\, financial\, and regulatory challenges\, despite its potential to reduce system-wide energy use and losses.Wasteful by-products: Sewage sludge management is costly and complex. Drying and incineration involve high capital and operational costs\, while land application is difficult in dense urban contexts.Safety concerns: Reuse of treated wastewater for agriculture requires strict control of pathogens and emerging contaminants\, in line with the EU Water Reuse Regulation (EU) 2020/741.As a result\, valuable water\, nutrients\, and energy are lost\, while cities face rising water scarcity risks\, higher treatment costs\, and reduced adaptive capacity to climate impacts. 								\n				\n				\n				\n									What THESEUS is doing THESEUS is implementing a comprehensive set of solutions\, bridging the gap between urban water management and circular agriculture. Decentralised sewer mining: Sewer mining units based on membrane bioreactor technology abstract wastewater directly from local sewers\, treat it on-site\, and reuse it for irrigating urban green spaces\, including parks in Attica (Klonaridi – Fix Park). This reduces freshwater demand and helps mitigate urban heat stress.Rainwater harvesting and urban green spaces: Rainwater harvesting systems are implemented at the 21st Primary School of Athens as a first application\, where collected rainwater is used to irrigate rooftop and yard green spaces. In parallel small-scale composting units treat biowaste and produce compost applied within the on-site green areas\, with similar systems planned for additional residences and an educational building.Nature-based Solutions (NbS): Urban parks are redesigned using solutions such as rain gardens and bioswales (in the KAPAPS park of Athens) to harvest and manage rainwater and stormwater. These interventions reduce flood risks while providing alternative water sources for urban and industrial uses.Centralised reclaimed water: In Eastern Attica\, the project assesses the reuse of treated wastewater from a WWTP (Koropi-Peania) for agricultural irrigation. The activities focus on evaluating the fate and potential accumulation of emerging contaminants in reclaimed water\, soil and crops\, as well as the effects of reclaimed water on crop development and soil health\, feeding into the development of a Risk Management Plan in line with the EU Water Reuse Regulation 2020/741.Sludge valorisation via pyrolysis: Sewage sludge from major wastewater treatment plants\, at Psyttalia\, is treated using fast pyrolysis and torrefaction. These processes convert sludge into bio-oil\, gas\, and biochar\, transforming a disposal challenge into an energy and material resource.								\n				\n				\n				\n																														\n				\n				\n				\n									All solutions are implemented in real urban and peri-urban environments through a mix of new pilot installations and actions linked to existing water and wastewater systems The pilot applies a systemic approach that integrates water reuse\, risk-based safety validation\, and high-value resource recovery within urban and regional water systems. Beyond disposal: Instead of focusing on sludge drying or incineration\, the pilot applies advanced thermal processes to recover energy carriers and biochar\, creating new circular value chains from wastewater residues.Risk-based safety validation: The pilot conducts detailed risk assessments for emerging contaminants\, including pharmaceuticals and personal care products\, in crops irrigated with reclaimed water. This supports compliance with EU Regulation 2020/741 and builds confidence for agricultural uptake.System-level planning: Rather than isolated demonstrations\, the pilot feeds into a co-developed Strategic Regional Master Plan for Circularity. This plan incorporates system design\, pricing models\, and governance considerations\, enabling future investments by the Region of Attica.								\n				\n				\n				\n									Expected outcomes and impact The pilot aims to establish a blueprint for reducing freshwater consumption and closing the loop on wastewater solids. Quantitative targets: The goal is to reduce freshwater consumption for urban green irrigation by 50%.Flood mitigation impacts: Nature-based solutions are expected to reduce rainfall runoff volumes by approximately 15% and peak discharge by up to 40%\, significantly lowering flood risks in intervention areas.Policy and investment uptake: The ultimate output is the adoption of the Strategic Master Plan by local authorities\, enabling future investments in circular water systems across the wider Attica region.
URL:https://www.theseus-h4c.eu/event/theseus-h4c-engages-young-citizens-in-co-designing-greener-school-environments-in-athens/
LOCATION:Athens\, Greece\, Athens\, Greece
CATEGORIES:Past
ATTACH;FMTTYPE=image/jpeg:https://www.theseus-h4c.eu/wp-content/uploads/2025/12/1765367839250-e1766156474731.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Athens:20251107T093000
DTEND;TZID=Europe/Athens:20251107T170000
DTSTAMP:20260610T150433
CREATED:20250911T070435Z
LAST-MODIFIED:20260430T085055Z
UID:2759-1762507800-1762534800@www.theseus-h4c.eu
SUMMARY:Enabling Innovation in Greek Industries via Theseus Hub4Circularity Ecosystem
DESCRIPTION:Enabling Circular Water Management at Urban and Regional Scale				\n				\n				\n					\n				\n		\n					\n		\n				\n				\n																														\n				\n				\n		\n				\n				\n					\n\n\n\n\n\n				\n				\n				\n				\n				\n									The Water Symbiotic Flows pilot demonstrates approaches for managing urban water and wastewater flows\, as circular urban resources. The pilot integrates decentralised and centralised solutions to recover water\, nutrients\, and energy\, supporting climate resilience and long-term sustainability in urban and peri-urban environments. 								\n				\n				\n				\n									The problem Urban water systems across Europe are under growing pressure from climate change\, population density\, and competing demands for freshwater. Traditional linear water management models treat wastewater and sewage sludge primarily as liabilities\, resulting in high resource losses\, increased energy consumption\, and environmental stress. 								\n				\n		\n				\n				\n									Even in regions with well-developed water infrastructure\, cities face recurring challenges related to water scarcity\, flood risks\, and the rising cost and energy intensity of water treatment. Opportunities to recover treated water\, nutrients\, and energy remain largely underexploited\, limiting the transition toward more resilient and circular water systems. 								\n				\n									\n				\n				\n									These challenges are particularly acute in water-stressed regions. In Attica\, Greece\, climate change is intensifying heatwaves and water scarcity during summer months\, placing increasing pressure on freshwater resources. Current systems rely heavily on potable water for irrigation and other non-potable uses\, while wastewater treatment remains energy-intensive and largely centralised. 								\n				\n				\n				\n									Additional barriers include: Infrastructure limitations: Integrating decentralised water treatment at the point of demand faces technical\, financial\, and regulatory challenges\, despite its potential to reduce system-wide energy use and losses.Wasteful by-products: Sewage sludge management is costly and complex. Drying and incineration involve high capital and operational costs\, while land application is difficult in dense urban contexts.Safety concerns: Reuse of treated wastewater for agriculture requires strict control of pathogens and emerging contaminants\, in line with the EU Water Reuse Regulation (EU) 2020/741.As a result\, valuable water\, nutrients\, and energy are lost\, while cities face rising water scarcity risks\, higher treatment costs\, and reduced adaptive capacity to climate impacts. 								\n				\n				\n				\n									What THESEUS is doing THESEUS is implementing a comprehensive set of solutions\, bridging the gap between urban water management and circular agriculture. Decentralised sewer mining: Sewer mining units based on membrane bioreactor technology abstract wastewater directly from local sewers\, treat it on-site\, and reuse it for irrigating urban green spaces\, including parks in Attica (Klonaridi – Fix Park). This reduces freshwater demand and helps mitigate urban heat stress.Rainwater harvesting and urban green spaces: Rainwater harvesting systems are implemented at the 21st Primary School of Athens as a first application\, where collected rainwater is used to irrigate rooftop and yard green spaces. In parallel small-scale composting units treat biowaste and produce compost applied within the on-site green areas\, with similar systems planned for additional residences and an educational building.Nature-based Solutions (NbS): Urban parks are redesigned using solutions such as rain gardens and bioswales (in the KAPAPS park of Athens) to harvest and manage rainwater and stormwater. These interventions reduce flood risks while providing alternative water sources for urban and industrial uses.Centralised reclaimed water: In Eastern Attica\, the project assesses the reuse of treated wastewater from a WWTP (Koropi-Peania) for agricultural irrigation. The activities focus on evaluating the fate and potential accumulation of emerging contaminants in reclaimed water\, soil and crops\, as well as the effects of reclaimed water on crop development and soil health\, feeding into the development of a Risk Management Plan in line with the EU Water Reuse Regulation 2020/741.Sludge valorisation via pyrolysis: Sewage sludge from major wastewater treatment plants\, at Psyttalia\, is treated using fast pyrolysis and torrefaction. These processes convert sludge into bio-oil\, gas\, and biochar\, transforming a disposal challenge into an energy and material resource.								\n				\n				\n				\n																														\n				\n				\n				\n									All solutions are implemented in real urban and peri-urban environments through a mix of new pilot installations and actions linked to existing water and wastewater systems The pilot applies a systemic approach that integrates water reuse\, risk-based safety validation\, and high-value resource recovery within urban and regional water systems. Beyond disposal: Instead of focusing on sludge drying or incineration\, the pilot applies advanced thermal processes to recover energy carriers and biochar\, creating new circular value chains from wastewater residues.Risk-based safety validation: The pilot conducts detailed risk assessments for emerging contaminants\, including pharmaceuticals and personal care products\, in crops irrigated with reclaimed water. This supports compliance with EU Regulation 2020/741 and builds confidence for agricultural uptake.System-level planning: Rather than isolated demonstrations\, the pilot feeds into a co-developed Strategic Regional Master Plan for Circularity. This plan incorporates system design\, pricing models\, and governance considerations\, enabling future investments by the Region of Attica.								\n				\n				\n				\n									Expected outcomes and impact The pilot aims to establish a blueprint for reducing freshwater consumption and closing the loop on wastewater solids. Quantitative targets: The goal is to reduce freshwater consumption for urban green irrigation by 50%.Flood mitigation impacts: Nature-based solutions are expected to reduce rainfall runoff volumes by approximately 15% and peak discharge by up to 40%\, significantly lowering flood risks in intervention areas.Policy and investment uptake: The ultimate output is the adoption of the Strategic Master Plan by local authorities\, enabling future investments in circular water systems across the wider Attica region.
URL:https://www.theseus-h4c.eu/event/enabling-innovation-in-greek-industries-via-theseus-hub4circularity-ecosystem/
LOCATION:Athens\, Greece\, Athens\, Greece
CATEGORIES:Past
ATTACH;FMTTYPE=image/png:https://www.theseus-h4c.eu/wp-content/uploads/2025/09/Enabling-Innovation-in-Greek-Industries-via-Theseus-Hub4Circularity-Ecosystem.png
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20250826
DTEND;VALUE=DATE:20250830
DTSTAMP:20260610T150433
CREATED:20250827T110012Z
LAST-MODIFIED:20260430T085107Z
UID:2745-1756166400-1756511999@www.theseus-h4c.eu
SUMMARY:THESEUS-H4C presented at ERSA 2025
DESCRIPTION:Enabling Circular Water Management at Urban and Regional Scale				\n				\n				\n					\n				\n		\n					\n		\n				\n				\n																														\n				\n				\n		\n				\n				\n					\n\n\n\n\n\n				\n				\n				\n				\n				\n									The Water Symbiotic Flows pilot demonstrates approaches for managing urban water and wastewater flows\, as circular urban resources. The pilot integrates decentralised and centralised solutions to recover water\, nutrients\, and energy\, supporting climate resilience and long-term sustainability in urban and peri-urban environments. 								\n				\n				\n				\n									The problem Urban water systems across Europe are under growing pressure from climate change\, population density\, and competing demands for freshwater. Traditional linear water management models treat wastewater and sewage sludge primarily as liabilities\, resulting in high resource losses\, increased energy consumption\, and environmental stress. 								\n				\n		\n				\n				\n									Even in regions with well-developed water infrastructure\, cities face recurring challenges related to water scarcity\, flood risks\, and the rising cost and energy intensity of water treatment. Opportunities to recover treated water\, nutrients\, and energy remain largely underexploited\, limiting the transition toward more resilient and circular water systems. 								\n				\n									\n				\n				\n									These challenges are particularly acute in water-stressed regions. In Attica\, Greece\, climate change is intensifying heatwaves and water scarcity during summer months\, placing increasing pressure on freshwater resources. Current systems rely heavily on potable water for irrigation and other non-potable uses\, while wastewater treatment remains energy-intensive and largely centralised. 								\n				\n				\n				\n									Additional barriers include: Infrastructure limitations: Integrating decentralised water treatment at the point of demand faces technical\, financial\, and regulatory challenges\, despite its potential to reduce system-wide energy use and losses.Wasteful by-products: Sewage sludge management is costly and complex. Drying and incineration involve high capital and operational costs\, while land application is difficult in dense urban contexts.Safety concerns: Reuse of treated wastewater for agriculture requires strict control of pathogens and emerging contaminants\, in line with the EU Water Reuse Regulation (EU) 2020/741.As a result\, valuable water\, nutrients\, and energy are lost\, while cities face rising water scarcity risks\, higher treatment costs\, and reduced adaptive capacity to climate impacts. 								\n				\n				\n				\n									What THESEUS is doing THESEUS is implementing a comprehensive set of solutions\, bridging the gap between urban water management and circular agriculture. Decentralised sewer mining: Sewer mining units based on membrane bioreactor technology abstract wastewater directly from local sewers\, treat it on-site\, and reuse it for irrigating urban green spaces\, including parks in Attica (Klonaridi – Fix Park). This reduces freshwater demand and helps mitigate urban heat stress.Rainwater harvesting and urban green spaces: Rainwater harvesting systems are implemented at the 21st Primary School of Athens as a first application\, where collected rainwater is used to irrigate rooftop and yard green spaces. In parallel small-scale composting units treat biowaste and produce compost applied within the on-site green areas\, with similar systems planned for additional residences and an educational building.Nature-based Solutions (NbS): Urban parks are redesigned using solutions such as rain gardens and bioswales (in the KAPAPS park of Athens) to harvest and manage rainwater and stormwater. These interventions reduce flood risks while providing alternative water sources for urban and industrial uses.Centralised reclaimed water: In Eastern Attica\, the project assesses the reuse of treated wastewater from a WWTP (Koropi-Peania) for agricultural irrigation. The activities focus on evaluating the fate and potential accumulation of emerging contaminants in reclaimed water\, soil and crops\, as well as the effects of reclaimed water on crop development and soil health\, feeding into the development of a Risk Management Plan in line with the EU Water Reuse Regulation 2020/741.Sludge valorisation via pyrolysis: Sewage sludge from major wastewater treatment plants\, at Psyttalia\, is treated using fast pyrolysis and torrefaction. These processes convert sludge into bio-oil\, gas\, and biochar\, transforming a disposal challenge into an energy and material resource.								\n				\n				\n				\n																														\n				\n				\n				\n									All solutions are implemented in real urban and peri-urban environments through a mix of new pilot installations and actions linked to existing water and wastewater systems The pilot applies a systemic approach that integrates water reuse\, risk-based safety validation\, and high-value resource recovery within urban and regional water systems. Beyond disposal: Instead of focusing on sludge drying or incineration\, the pilot applies advanced thermal processes to recover energy carriers and biochar\, creating new circular value chains from wastewater residues.Risk-based safety validation: The pilot conducts detailed risk assessments for emerging contaminants\, including pharmaceuticals and personal care products\, in crops irrigated with reclaimed water. This supports compliance with EU Regulation 2020/741 and builds confidence for agricultural uptake.System-level planning: Rather than isolated demonstrations\, the pilot feeds into a co-developed Strategic Regional Master Plan for Circularity. This plan incorporates system design\, pricing models\, and governance considerations\, enabling future investments by the Region of Attica.								\n				\n				\n				\n									Expected outcomes and impact The pilot aims to establish a blueprint for reducing freshwater consumption and closing the loop on wastewater solids. Quantitative targets: The goal is to reduce freshwater consumption for urban green irrigation by 50%.Flood mitigation impacts: Nature-based solutions are expected to reduce rainfall runoff volumes by approximately 15% and peak discharge by up to 40%\, significantly lowering flood risks in intervention areas.Policy and investment uptake: The ultimate output is the adoption of the Strategic Master Plan by local authorities\, enabling future investments in circular water systems across the wider Attica region.
URL:https://www.theseus-h4c.eu/event/theseus-h4c-presented-at-ersa-2025/
LOCATION:Athens\, Greece\, Athens\, Greece
CATEGORIES:Past
ATTACH;FMTTYPE=image/jpeg:https://www.theseus-h4c.eu/wp-content/uploads/2025/08/Πολυμέσα-1-e1762247404958.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20250826
DTEND;VALUE=DATE:20250830
DTSTAMP:20260610T150433
CREATED:20250402T221330Z
LAST-MODIFIED:20260430T085119Z
UID:1093-1756166400-1756511999@www.theseus-h4c.eu
SUMMARY:THESEUS-H4C at ERSA 2025: Advancing Circular Economy in Regional Contexts
DESCRIPTION:Enabling Circular Water Management at Urban and Regional Scale				\n				\n				\n					\n				\n		\n					\n		\n				\n				\n																														\n				\n				\n		\n				\n				\n					\n\n\n\n\n\n				\n				\n				\n				\n				\n									The Water Symbiotic Flows pilot demonstrates approaches for managing urban water and wastewater flows\, as circular urban resources. The pilot integrates decentralised and centralised solutions to recover water\, nutrients\, and energy\, supporting climate resilience and long-term sustainability in urban and peri-urban environments. 								\n				\n				\n				\n									The problem Urban water systems across Europe are under growing pressure from climate change\, population density\, and competing demands for freshwater. Traditional linear water management models treat wastewater and sewage sludge primarily as liabilities\, resulting in high resource losses\, increased energy consumption\, and environmental stress. 								\n				\n		\n				\n				\n									Even in regions with well-developed water infrastructure\, cities face recurring challenges related to water scarcity\, flood risks\, and the rising cost and energy intensity of water treatment. Opportunities to recover treated water\, nutrients\, and energy remain largely underexploited\, limiting the transition toward more resilient and circular water systems. 								\n				\n									\n				\n				\n									These challenges are particularly acute in water-stressed regions. In Attica\, Greece\, climate change is intensifying heatwaves and water scarcity during summer months\, placing increasing pressure on freshwater resources. Current systems rely heavily on potable water for irrigation and other non-potable uses\, while wastewater treatment remains energy-intensive and largely centralised. 								\n				\n				\n				\n									Additional barriers include: Infrastructure limitations: Integrating decentralised water treatment at the point of demand faces technical\, financial\, and regulatory challenges\, despite its potential to reduce system-wide energy use and losses.Wasteful by-products: Sewage sludge management is costly and complex. Drying and incineration involve high capital and operational costs\, while land application is difficult in dense urban contexts.Safety concerns: Reuse of treated wastewater for agriculture requires strict control of pathogens and emerging contaminants\, in line with the EU Water Reuse Regulation (EU) 2020/741.As a result\, valuable water\, nutrients\, and energy are lost\, while cities face rising water scarcity risks\, higher treatment costs\, and reduced adaptive capacity to climate impacts. 								\n				\n				\n				\n									What THESEUS is doing THESEUS is implementing a comprehensive set of solutions\, bridging the gap between urban water management and circular agriculture. Decentralised sewer mining: Sewer mining units based on membrane bioreactor technology abstract wastewater directly from local sewers\, treat it on-site\, and reuse it for irrigating urban green spaces\, including parks in Attica (Klonaridi – Fix Park). This reduces freshwater demand and helps mitigate urban heat stress.Rainwater harvesting and urban green spaces: Rainwater harvesting systems are implemented at the 21st Primary School of Athens as a first application\, where collected rainwater is used to irrigate rooftop and yard green spaces. In parallel small-scale composting units treat biowaste and produce compost applied within the on-site green areas\, with similar systems planned for additional residences and an educational building.Nature-based Solutions (NbS): Urban parks are redesigned using solutions such as rain gardens and bioswales (in the KAPAPS park of Athens) to harvest and manage rainwater and stormwater. These interventions reduce flood risks while providing alternative water sources for urban and industrial uses.Centralised reclaimed water: In Eastern Attica\, the project assesses the reuse of treated wastewater from a WWTP (Koropi-Peania) for agricultural irrigation. The activities focus on evaluating the fate and potential accumulation of emerging contaminants in reclaimed water\, soil and crops\, as well as the effects of reclaimed water on crop development and soil health\, feeding into the development of a Risk Management Plan in line with the EU Water Reuse Regulation 2020/741.Sludge valorisation via pyrolysis: Sewage sludge from major wastewater treatment plants\, at Psyttalia\, is treated using fast pyrolysis and torrefaction. These processes convert sludge into bio-oil\, gas\, and biochar\, transforming a disposal challenge into an energy and material resource.								\n				\n				\n				\n																														\n				\n				\n				\n									All solutions are implemented in real urban and peri-urban environments through a mix of new pilot installations and actions linked to existing water and wastewater systems The pilot applies a systemic approach that integrates water reuse\, risk-based safety validation\, and high-value resource recovery within urban and regional water systems. Beyond disposal: Instead of focusing on sludge drying or incineration\, the pilot applies advanced thermal processes to recover energy carriers and biochar\, creating new circular value chains from wastewater residues.Risk-based safety validation: The pilot conducts detailed risk assessments for emerging contaminants\, including pharmaceuticals and personal care products\, in crops irrigated with reclaimed water. This supports compliance with EU Regulation 2020/741 and builds confidence for agricultural uptake.System-level planning: Rather than isolated demonstrations\, the pilot feeds into a co-developed Strategic Regional Master Plan for Circularity. This plan incorporates system design\, pricing models\, and governance considerations\, enabling future investments by the Region of Attica.								\n				\n				\n				\n									Expected outcomes and impact The pilot aims to establish a blueprint for reducing freshwater consumption and closing the loop on wastewater solids. Quantitative targets: The goal is to reduce freshwater consumption for urban green irrigation by 50%.Flood mitigation impacts: Nature-based solutions are expected to reduce rainfall runoff volumes by approximately 15% and peak discharge by up to 40%\, significantly lowering flood risks in intervention areas.Policy and investment uptake: The ultimate output is the adoption of the Strategic Master Plan by local authorities\, enabling future investments in circular water systems across the wider Attica region.
URL:https://www.theseus-h4c.eu/event/theseus-h4c-at-ersa-2025-advancing-circular-economy-in-regional-contexts/
LOCATION:Athens\, Greece\, Athens\, Greece
CATEGORIES:Past
ATTACH;FMTTYPE=image/jpeg:https://www.theseus-h4c.eu/wp-content/uploads/2025/04/2025-01-09_JRC-ERSA_general-visual-web.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20250611
DTEND;VALUE=DATE:20250612
DTSTAMP:20260610T150433
CREATED:20250707T082025Z
LAST-MODIFIED:20260430T085134Z
UID:2651-1749600000-1749686399@www.theseus-h4c.eu
SUMMARY:THESEUS-H4C at the EU Green Week
DESCRIPTION:Enabling Circular Water Management at Urban and Regional Scale				\n				\n				\n					\n				\n		\n					\n		\n				\n				\n																														\n				\n				\n		\n				\n				\n					\n\n\n\n\n\n				\n				\n				\n				\n				\n									The Water Symbiotic Flows pilot demonstrates approaches for managing urban water and wastewater flows\, as circular urban resources. The pilot integrates decentralised and centralised solutions to recover water\, nutrients\, and energy\, supporting climate resilience and long-term sustainability in urban and peri-urban environments. 								\n				\n				\n				\n									The problem Urban water systems across Europe are under growing pressure from climate change\, population density\, and competing demands for freshwater. Traditional linear water management models treat wastewater and sewage sludge primarily as liabilities\, resulting in high resource losses\, increased energy consumption\, and environmental stress. 								\n				\n		\n				\n				\n									Even in regions with well-developed water infrastructure\, cities face recurring challenges related to water scarcity\, flood risks\, and the rising cost and energy intensity of water treatment. Opportunities to recover treated water\, nutrients\, and energy remain largely underexploited\, limiting the transition toward more resilient and circular water systems. 								\n				\n									\n				\n				\n									These challenges are particularly acute in water-stressed regions. In Attica\, Greece\, climate change is intensifying heatwaves and water scarcity during summer months\, placing increasing pressure on freshwater resources. Current systems rely heavily on potable water for irrigation and other non-potable uses\, while wastewater treatment remains energy-intensive and largely centralised. 								\n				\n				\n				\n									Additional barriers include: Infrastructure limitations: Integrating decentralised water treatment at the point of demand faces technical\, financial\, and regulatory challenges\, despite its potential to reduce system-wide energy use and losses.Wasteful by-products: Sewage sludge management is costly and complex. Drying and incineration involve high capital and operational costs\, while land application is difficult in dense urban contexts.Safety concerns: Reuse of treated wastewater for agriculture requires strict control of pathogens and emerging contaminants\, in line with the EU Water Reuse Regulation (EU) 2020/741.As a result\, valuable water\, nutrients\, and energy are lost\, while cities face rising water scarcity risks\, higher treatment costs\, and reduced adaptive capacity to climate impacts. 								\n				\n				\n				\n									What THESEUS is doing THESEUS is implementing a comprehensive set of solutions\, bridging the gap between urban water management and circular agriculture. Decentralised sewer mining: Sewer mining units based on membrane bioreactor technology abstract wastewater directly from local sewers\, treat it on-site\, and reuse it for irrigating urban green spaces\, including parks in Attica (Klonaridi – Fix Park). This reduces freshwater demand and helps mitigate urban heat stress.Rainwater harvesting and urban green spaces: Rainwater harvesting systems are implemented at the 21st Primary School of Athens as a first application\, where collected rainwater is used to irrigate rooftop and yard green spaces. In parallel small-scale composting units treat biowaste and produce compost applied within the on-site green areas\, with similar systems planned for additional residences and an educational building.Nature-based Solutions (NbS): Urban parks are redesigned using solutions such as rain gardens and bioswales (in the KAPAPS park of Athens) to harvest and manage rainwater and stormwater. These interventions reduce flood risks while providing alternative water sources for urban and industrial uses.Centralised reclaimed water: In Eastern Attica\, the project assesses the reuse of treated wastewater from a WWTP (Koropi-Peania) for agricultural irrigation. The activities focus on evaluating the fate and potential accumulation of emerging contaminants in reclaimed water\, soil and crops\, as well as the effects of reclaimed water on crop development and soil health\, feeding into the development of a Risk Management Plan in line with the EU Water Reuse Regulation 2020/741.Sludge valorisation via pyrolysis: Sewage sludge from major wastewater treatment plants\, at Psyttalia\, is treated using fast pyrolysis and torrefaction. These processes convert sludge into bio-oil\, gas\, and biochar\, transforming a disposal challenge into an energy and material resource.								\n				\n				\n				\n																														\n				\n				\n				\n									All solutions are implemented in real urban and peri-urban environments through a mix of new pilot installations and actions linked to existing water and wastewater systems The pilot applies a systemic approach that integrates water reuse\, risk-based safety validation\, and high-value resource recovery within urban and regional water systems. Beyond disposal: Instead of focusing on sludge drying or incineration\, the pilot applies advanced thermal processes to recover energy carriers and biochar\, creating new circular value chains from wastewater residues.Risk-based safety validation: The pilot conducts detailed risk assessments for emerging contaminants\, including pharmaceuticals and personal care products\, in crops irrigated with reclaimed water. This supports compliance with EU Regulation 2020/741 and builds confidence for agricultural uptake.System-level planning: Rather than isolated demonstrations\, the pilot feeds into a co-developed Strategic Regional Master Plan for Circularity. This plan incorporates system design\, pricing models\, and governance considerations\, enabling future investments by the Region of Attica.								\n				\n				\n				\n									Expected outcomes and impact The pilot aims to establish a blueprint for reducing freshwater consumption and closing the loop on wastewater solids. Quantitative targets: The goal is to reduce freshwater consumption for urban green irrigation by 50%.Flood mitigation impacts: Nature-based solutions are expected to reduce rainfall runoff volumes by approximately 15% and peak discharge by up to 40%\, significantly lowering flood risks in intervention areas.Policy and investment uptake: The ultimate output is the adoption of the Strategic Master Plan by local authorities\, enabling future investments in circular water systems across the wider Attica region.
URL:https://www.theseus-h4c.eu/event/theseus-h4c-at-the-eu-green-week/
LOCATION:Bodø\,  Norway\, Bodø\, Norway
CATEGORIES:Past
ATTACH;FMTTYPE=image/jpeg:https://www.theseus-h4c.eu/wp-content/uploads/2025/07/EU-Green-Week_Socia-Media_1080x1080_final-scaled.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20250602
DTEND;VALUE=DATE:20250605
DTSTAMP:20260610T150433
CREATED:20250707T110104Z
LAST-MODIFIED:20260430T085148Z
UID:2669-1748822400-1749081599@www.theseus-h4c.eu
SUMMARY:THESEUS-H4C at the EUIndTech2025
DESCRIPTION:Enabling Circular Water Management at Urban and Regional Scale				\n				\n				\n					\n				\n		\n					\n		\n				\n				\n																														\n				\n				\n		\n				\n				\n					\n\n\n\n\n\n				\n				\n				\n				\n				\n									The Water Symbiotic Flows pilot demonstrates approaches for managing urban water and wastewater flows\, as circular urban resources. The pilot integrates decentralised and centralised solutions to recover water\, nutrients\, and energy\, supporting climate resilience and long-term sustainability in urban and peri-urban environments. 								\n				\n				\n				\n									The problem Urban water systems across Europe are under growing pressure from climate change\, population density\, and competing demands for freshwater. Traditional linear water management models treat wastewater and sewage sludge primarily as liabilities\, resulting in high resource losses\, increased energy consumption\, and environmental stress. 								\n				\n		\n				\n				\n									Even in regions with well-developed water infrastructure\, cities face recurring challenges related to water scarcity\, flood risks\, and the rising cost and energy intensity of water treatment. Opportunities to recover treated water\, nutrients\, and energy remain largely underexploited\, limiting the transition toward more resilient and circular water systems. 								\n				\n									\n				\n				\n									These challenges are particularly acute in water-stressed regions. In Attica\, Greece\, climate change is intensifying heatwaves and water scarcity during summer months\, placing increasing pressure on freshwater resources. Current systems rely heavily on potable water for irrigation and other non-potable uses\, while wastewater treatment remains energy-intensive and largely centralised. 								\n				\n				\n				\n									Additional barriers include: Infrastructure limitations: Integrating decentralised water treatment at the point of demand faces technical\, financial\, and regulatory challenges\, despite its potential to reduce system-wide energy use and losses.Wasteful by-products: Sewage sludge management is costly and complex. Drying and incineration involve high capital and operational costs\, while land application is difficult in dense urban contexts.Safety concerns: Reuse of treated wastewater for agriculture requires strict control of pathogens and emerging contaminants\, in line with the EU Water Reuse Regulation (EU) 2020/741.As a result\, valuable water\, nutrients\, and energy are lost\, while cities face rising water scarcity risks\, higher treatment costs\, and reduced adaptive capacity to climate impacts. 								\n				\n				\n				\n									What THESEUS is doing THESEUS is implementing a comprehensive set of solutions\, bridging the gap between urban water management and circular agriculture. Decentralised sewer mining: Sewer mining units based on membrane bioreactor technology abstract wastewater directly from local sewers\, treat it on-site\, and reuse it for irrigating urban green spaces\, including parks in Attica (Klonaridi – Fix Park). This reduces freshwater demand and helps mitigate urban heat stress.Rainwater harvesting and urban green spaces: Rainwater harvesting systems are implemented at the 21st Primary School of Athens as a first application\, where collected rainwater is used to irrigate rooftop and yard green spaces. In parallel small-scale composting units treat biowaste and produce compost applied within the on-site green areas\, with similar systems planned for additional residences and an educational building.Nature-based Solutions (NbS): Urban parks are redesigned using solutions such as rain gardens and bioswales (in the KAPAPS park of Athens) to harvest and manage rainwater and stormwater. These interventions reduce flood risks while providing alternative water sources for urban and industrial uses.Centralised reclaimed water: In Eastern Attica\, the project assesses the reuse of treated wastewater from a WWTP (Koropi-Peania) for agricultural irrigation. The activities focus on evaluating the fate and potential accumulation of emerging contaminants in reclaimed water\, soil and crops\, as well as the effects of reclaimed water on crop development and soil health\, feeding into the development of a Risk Management Plan in line with the EU Water Reuse Regulation 2020/741.Sludge valorisation via pyrolysis: Sewage sludge from major wastewater treatment plants\, at Psyttalia\, is treated using fast pyrolysis and torrefaction. These processes convert sludge into bio-oil\, gas\, and biochar\, transforming a disposal challenge into an energy and material resource.								\n				\n				\n				\n																														\n				\n				\n				\n									All solutions are implemented in real urban and peri-urban environments through a mix of new pilot installations and actions linked to existing water and wastewater systems The pilot applies a systemic approach that integrates water reuse\, risk-based safety validation\, and high-value resource recovery within urban and regional water systems. Beyond disposal: Instead of focusing on sludge drying or incineration\, the pilot applies advanced thermal processes to recover energy carriers and biochar\, creating new circular value chains from wastewater residues.Risk-based safety validation: The pilot conducts detailed risk assessments for emerging contaminants\, including pharmaceuticals and personal care products\, in crops irrigated with reclaimed water. This supports compliance with EU Regulation 2020/741 and builds confidence for agricultural uptake.System-level planning: Rather than isolated demonstrations\, the pilot feeds into a co-developed Strategic Regional Master Plan for Circularity. This plan incorporates system design\, pricing models\, and governance considerations\, enabling future investments by the Region of Attica.								\n				\n				\n				\n									Expected outcomes and impact The pilot aims to establish a blueprint for reducing freshwater consumption and closing the loop on wastewater solids. Quantitative targets: The goal is to reduce freshwater consumption for urban green irrigation by 50%.Flood mitigation impacts: Nature-based solutions are expected to reduce rainfall runoff volumes by approximately 15% and peak discharge by up to 40%\, significantly lowering flood risks in intervention areas.Policy and investment uptake: The ultimate output is the adoption of the Strategic Master Plan by local authorities\, enabling future investments in circular water systems across the wider Attica region.
URL:https://www.theseus-h4c.eu/event/theseus-h4c-at-the-euindtech2025/
LOCATION:Krakow\, Poland\, Krakow\, Poland
CATEGORIES:Past
ATTACH;FMTTYPE=image/jpeg:https://www.theseus-h4c.eu/wp-content/uploads/2025/07/Screenshot-2025-07-07-135522.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20250530
DTEND;VALUE=DATE:20250531
DTSTAMP:20260610T150433
CREATED:20250707T065433Z
LAST-MODIFIED:20260430T085157Z
UID:2641-1748563200-1748649599@www.theseus-h4c.eu
SUMMARY:THESEUS-H4C at the CRETE 2025 Conference
DESCRIPTION:Enabling Circular Water Management at Urban and Regional Scale				\n				\n				\n					\n				\n		\n					\n		\n				\n				\n																														\n				\n				\n		\n				\n				\n					\n\n\n\n\n\n				\n				\n				\n				\n				\n									The Water Symbiotic Flows pilot demonstrates approaches for managing urban water and wastewater flows\, as circular urban resources. The pilot integrates decentralised and centralised solutions to recover water\, nutrients\, and energy\, supporting climate resilience and long-term sustainability in urban and peri-urban environments. 								\n				\n				\n				\n									The problem Urban water systems across Europe are under growing pressure from climate change\, population density\, and competing demands for freshwater. Traditional linear water management models treat wastewater and sewage sludge primarily as liabilities\, resulting in high resource losses\, increased energy consumption\, and environmental stress. 								\n				\n		\n				\n				\n									Even in regions with well-developed water infrastructure\, cities face recurring challenges related to water scarcity\, flood risks\, and the rising cost and energy intensity of water treatment. Opportunities to recover treated water\, nutrients\, and energy remain largely underexploited\, limiting the transition toward more resilient and circular water systems. 								\n				\n									\n				\n				\n									These challenges are particularly acute in water-stressed regions. In Attica\, Greece\, climate change is intensifying heatwaves and water scarcity during summer months\, placing increasing pressure on freshwater resources. Current systems rely heavily on potable water for irrigation and other non-potable uses\, while wastewater treatment remains energy-intensive and largely centralised. 								\n				\n				\n				\n									Additional barriers include: Infrastructure limitations: Integrating decentralised water treatment at the point of demand faces technical\, financial\, and regulatory challenges\, despite its potential to reduce system-wide energy use and losses.Wasteful by-products: Sewage sludge management is costly and complex. Drying and incineration involve high capital and operational costs\, while land application is difficult in dense urban contexts.Safety concerns: Reuse of treated wastewater for agriculture requires strict control of pathogens and emerging contaminants\, in line with the EU Water Reuse Regulation (EU) 2020/741.As a result\, valuable water\, nutrients\, and energy are lost\, while cities face rising water scarcity risks\, higher treatment costs\, and reduced adaptive capacity to climate impacts. 								\n				\n				\n				\n									What THESEUS is doing THESEUS is implementing a comprehensive set of solutions\, bridging the gap between urban water management and circular agriculture. Decentralised sewer mining: Sewer mining units based on membrane bioreactor technology abstract wastewater directly from local sewers\, treat it on-site\, and reuse it for irrigating urban green spaces\, including parks in Attica (Klonaridi – Fix Park). This reduces freshwater demand and helps mitigate urban heat stress.Rainwater harvesting and urban green spaces: Rainwater harvesting systems are implemented at the 21st Primary School of Athens as a first application\, where collected rainwater is used to irrigate rooftop and yard green spaces. In parallel small-scale composting units treat biowaste and produce compost applied within the on-site green areas\, with similar systems planned for additional residences and an educational building.Nature-based Solutions (NbS): Urban parks are redesigned using solutions such as rain gardens and bioswales (in the KAPAPS park of Athens) to harvest and manage rainwater and stormwater. These interventions reduce flood risks while providing alternative water sources for urban and industrial uses.Centralised reclaimed water: In Eastern Attica\, the project assesses the reuse of treated wastewater from a WWTP (Koropi-Peania) for agricultural irrigation. The activities focus on evaluating the fate and potential accumulation of emerging contaminants in reclaimed water\, soil and crops\, as well as the effects of reclaimed water on crop development and soil health\, feeding into the development of a Risk Management Plan in line with the EU Water Reuse Regulation 2020/741.Sludge valorisation via pyrolysis: Sewage sludge from major wastewater treatment plants\, at Psyttalia\, is treated using fast pyrolysis and torrefaction. These processes convert sludge into bio-oil\, gas\, and biochar\, transforming a disposal challenge into an energy and material resource.								\n				\n				\n				\n																														\n				\n				\n				\n									All solutions are implemented in real urban and peri-urban environments through a mix of new pilot installations and actions linked to existing water and wastewater systems The pilot applies a systemic approach that integrates water reuse\, risk-based safety validation\, and high-value resource recovery within urban and regional water systems. Beyond disposal: Instead of focusing on sludge drying or incineration\, the pilot applies advanced thermal processes to recover energy carriers and biochar\, creating new circular value chains from wastewater residues.Risk-based safety validation: The pilot conducts detailed risk assessments for emerging contaminants\, including pharmaceuticals and personal care products\, in crops irrigated with reclaimed water. This supports compliance with EU Regulation 2020/741 and builds confidence for agricultural uptake.System-level planning: Rather than isolated demonstrations\, the pilot feeds into a co-developed Strategic Regional Master Plan for Circularity. This plan incorporates system design\, pricing models\, and governance considerations\, enabling future investments by the Region of Attica.								\n				\n				\n				\n									Expected outcomes and impact The pilot aims to establish a blueprint for reducing freshwater consumption and closing the loop on wastewater solids. Quantitative targets: The goal is to reduce freshwater consumption for urban green irrigation by 50%.Flood mitigation impacts: Nature-based solutions are expected to reduce rainfall runoff volumes by approximately 15% and peak discharge by up to 40%\, significantly lowering flood risks in intervention areas.Policy and investment uptake: The ultimate output is the adoption of the Strategic Master Plan by local authorities\, enabling future investments in circular water systems across the wider Attica region.
URL:https://www.theseus-h4c.eu/event/theseus-h4c-at-the-crete-2025-conference/
LOCATION:TUC\, University Campus\, Chania\, Crete\, 73100\, Greece
CATEGORIES:Past
ATTACH;FMTTYPE=image/png:https://www.theseus-h4c.eu/wp-content/uploads/2025/07/Crete.png
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Athens:20250523T093000
DTEND;TZID=Europe/Athens:20250523T170000
DTSTAMP:20260610T150433
CREATED:20250523T071439Z
LAST-MODIFIED:20260430T085209Z
UID:4661-1747992600-1748019600@www.theseus-h4c.eu
SUMMARY:Theseus 2nd Steering Committee (Virtual)
DESCRIPTION:Enabling Circular Water Management at Urban and Regional Scale				\n				\n				\n					\n				\n		\n					\n		\n				\n				\n																														\n				\n				\n		\n				\n				\n					\n\n\n\n\n\n				\n				\n				\n				\n				\n									The Water Symbiotic Flows pilot demonstrates approaches for managing urban water and wastewater flows\, as circular urban resources. The pilot integrates decentralised and centralised solutions to recover water\, nutrients\, and energy\, supporting climate resilience and long-term sustainability in urban and peri-urban environments. 								\n				\n				\n				\n									The problem Urban water systems across Europe are under growing pressure from climate change\, population density\, and competing demands for freshwater. Traditional linear water management models treat wastewater and sewage sludge primarily as liabilities\, resulting in high resource losses\, increased energy consumption\, and environmental stress. 								\n				\n		\n				\n				\n									Even in regions with well-developed water infrastructure\, cities face recurring challenges related to water scarcity\, flood risks\, and the rising cost and energy intensity of water treatment. Opportunities to recover treated water\, nutrients\, and energy remain largely underexploited\, limiting the transition toward more resilient and circular water systems. 								\n				\n									\n				\n				\n									These challenges are particularly acute in water-stressed regions. In Attica\, Greece\, climate change is intensifying heatwaves and water scarcity during summer months\, placing increasing pressure on freshwater resources. Current systems rely heavily on potable water for irrigation and other non-potable uses\, while wastewater treatment remains energy-intensive and largely centralised. 								\n				\n				\n				\n									Additional barriers include: Infrastructure limitations: Integrating decentralised water treatment at the point of demand faces technical\, financial\, and regulatory challenges\, despite its potential to reduce system-wide energy use and losses.Wasteful by-products: Sewage sludge management is costly and complex. Drying and incineration involve high capital and operational costs\, while land application is difficult in dense urban contexts.Safety concerns: Reuse of treated wastewater for agriculture requires strict control of pathogens and emerging contaminants\, in line with the EU Water Reuse Regulation (EU) 2020/741.As a result\, valuable water\, nutrients\, and energy are lost\, while cities face rising water scarcity risks\, higher treatment costs\, and reduced adaptive capacity to climate impacts. 								\n				\n				\n				\n									What THESEUS is doing THESEUS is implementing a comprehensive set of solutions\, bridging the gap between urban water management and circular agriculture. Decentralised sewer mining: Sewer mining units based on membrane bioreactor technology abstract wastewater directly from local sewers\, treat it on-site\, and reuse it for irrigating urban green spaces\, including parks in Attica (Klonaridi – Fix Park). This reduces freshwater demand and helps mitigate urban heat stress.Rainwater harvesting and urban green spaces: Rainwater harvesting systems are implemented at the 21st Primary School of Athens as a first application\, where collected rainwater is used to irrigate rooftop and yard green spaces. In parallel small-scale composting units treat biowaste and produce compost applied within the on-site green areas\, with similar systems planned for additional residences and an educational building.Nature-based Solutions (NbS): Urban parks are redesigned using solutions such as rain gardens and bioswales (in the KAPAPS park of Athens) to harvest and manage rainwater and stormwater. These interventions reduce flood risks while providing alternative water sources for urban and industrial uses.Centralised reclaimed water: In Eastern Attica\, the project assesses the reuse of treated wastewater from a WWTP (Koropi-Peania) for agricultural irrigation. The activities focus on evaluating the fate and potential accumulation of emerging contaminants in reclaimed water\, soil and crops\, as well as the effects of reclaimed water on crop development and soil health\, feeding into the development of a Risk Management Plan in line with the EU Water Reuse Regulation 2020/741.Sludge valorisation via pyrolysis: Sewage sludge from major wastewater treatment plants\, at Psyttalia\, is treated using fast pyrolysis and torrefaction. These processes convert sludge into bio-oil\, gas\, and biochar\, transforming a disposal challenge into an energy and material resource.								\n				\n				\n				\n																														\n				\n				\n				\n									All solutions are implemented in real urban and peri-urban environments through a mix of new pilot installations and actions linked to existing water and wastewater systems The pilot applies a systemic approach that integrates water reuse\, risk-based safety validation\, and high-value resource recovery within urban and regional water systems. Beyond disposal: Instead of focusing on sludge drying or incineration\, the pilot applies advanced thermal processes to recover energy carriers and biochar\, creating new circular value chains from wastewater residues.Risk-based safety validation: The pilot conducts detailed risk assessments for emerging contaminants\, including pharmaceuticals and personal care products\, in crops irrigated with reclaimed water. This supports compliance with EU Regulation 2020/741 and builds confidence for agricultural uptake.System-level planning: Rather than isolated demonstrations\, the pilot feeds into a co-developed Strategic Regional Master Plan for Circularity. This plan incorporates system design\, pricing models\, and governance considerations\, enabling future investments by the Region of Attica.								\n				\n				\n				\n									Expected outcomes and impact The pilot aims to establish a blueprint for reducing freshwater consumption and closing the loop on wastewater solids. Quantitative targets: The goal is to reduce freshwater consumption for urban green irrigation by 50%.Flood mitigation impacts: Nature-based solutions are expected to reduce rainfall runoff volumes by approximately 15% and peak discharge by up to 40%\, significantly lowering flood risks in intervention areas.Policy and investment uptake: The ultimate output is the adoption of the Strategic Master Plan by local authorities\, enabling future investments in circular water systems across the wider Attica region.
URL:https://www.theseus-h4c.eu/event/theseus-2nd-steering-committee-virtual/
LOCATION:Online\, Online
CATEGORIES:Past
ATTACH;FMTTYPE=image/jpeg:https://www.theseus-h4c.eu/wp-content/uploads/2025/05/Theseus_2nd-Steering-Committee_1.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20250326
DTEND;VALUE=DATE:20250327
DTSTAMP:20260610T150433
CREATED:20250402T215447Z
LAST-MODIFIED:20260430T085218Z
UID:1063-1742947200-1743033599@www.theseus-h4c.eu
SUMMARY:THESEUS-H4C at the Hubs4Circularity Community of Practice Webinar Series – Featuring United Circles Project
DESCRIPTION:Enabling Circular Water Management at Urban and Regional Scale				\n				\n				\n					\n				\n		\n					\n		\n				\n				\n																														\n				\n				\n		\n				\n				\n					\n\n\n\n\n\n				\n				\n				\n				\n				\n									The Water Symbiotic Flows pilot demonstrates approaches for managing urban water and wastewater flows\, as circular urban resources. The pilot integrates decentralised and centralised solutions to recover water\, nutrients\, and energy\, supporting climate resilience and long-term sustainability in urban and peri-urban environments. 								\n				\n				\n				\n									The problem Urban water systems across Europe are under growing pressure from climate change\, population density\, and competing demands for freshwater. Traditional linear water management models treat wastewater and sewage sludge primarily as liabilities\, resulting in high resource losses\, increased energy consumption\, and environmental stress. 								\n				\n		\n				\n				\n									Even in regions with well-developed water infrastructure\, cities face recurring challenges related to water scarcity\, flood risks\, and the rising cost and energy intensity of water treatment. Opportunities to recover treated water\, nutrients\, and energy remain largely underexploited\, limiting the transition toward more resilient and circular water systems. 								\n				\n									\n				\n				\n									These challenges are particularly acute in water-stressed regions. In Attica\, Greece\, climate change is intensifying heatwaves and water scarcity during summer months\, placing increasing pressure on freshwater resources. Current systems rely heavily on potable water for irrigation and other non-potable uses\, while wastewater treatment remains energy-intensive and largely centralised. 								\n				\n				\n				\n									Additional barriers include: Infrastructure limitations: Integrating decentralised water treatment at the point of demand faces technical\, financial\, and regulatory challenges\, despite its potential to reduce system-wide energy use and losses.Wasteful by-products: Sewage sludge management is costly and complex. Drying and incineration involve high capital and operational costs\, while land application is difficult in dense urban contexts.Safety concerns: Reuse of treated wastewater for agriculture requires strict control of pathogens and emerging contaminants\, in line with the EU Water Reuse Regulation (EU) 2020/741.As a result\, valuable water\, nutrients\, and energy are lost\, while cities face rising water scarcity risks\, higher treatment costs\, and reduced adaptive capacity to climate impacts. 								\n				\n				\n				\n									What THESEUS is doing THESEUS is implementing a comprehensive set of solutions\, bridging the gap between urban water management and circular agriculture. Decentralised sewer mining: Sewer mining units based on membrane bioreactor technology abstract wastewater directly from local sewers\, treat it on-site\, and reuse it for irrigating urban green spaces\, including parks in Attica (Klonaridi – Fix Park). This reduces freshwater demand and helps mitigate urban heat stress.Rainwater harvesting and urban green spaces: Rainwater harvesting systems are implemented at the 21st Primary School of Athens as a first application\, where collected rainwater is used to irrigate rooftop and yard green spaces. In parallel small-scale composting units treat biowaste and produce compost applied within the on-site green areas\, with similar systems planned for additional residences and an educational building.Nature-based Solutions (NbS): Urban parks are redesigned using solutions such as rain gardens and bioswales (in the KAPAPS park of Athens) to harvest and manage rainwater and stormwater. These interventions reduce flood risks while providing alternative water sources for urban and industrial uses.Centralised reclaimed water: In Eastern Attica\, the project assesses the reuse of treated wastewater from a WWTP (Koropi-Peania) for agricultural irrigation. The activities focus on evaluating the fate and potential accumulation of emerging contaminants in reclaimed water\, soil and crops\, as well as the effects of reclaimed water on crop development and soil health\, feeding into the development of a Risk Management Plan in line with the EU Water Reuse Regulation 2020/741.Sludge valorisation via pyrolysis: Sewage sludge from major wastewater treatment plants\, at Psyttalia\, is treated using fast pyrolysis and torrefaction. These processes convert sludge into bio-oil\, gas\, and biochar\, transforming a disposal challenge into an energy and material resource.								\n				\n				\n				\n																														\n				\n				\n				\n									All solutions are implemented in real urban and peri-urban environments through a mix of new pilot installations and actions linked to existing water and wastewater systems The pilot applies a systemic approach that integrates water reuse\, risk-based safety validation\, and high-value resource recovery within urban and regional water systems. Beyond disposal: Instead of focusing on sludge drying or incineration\, the pilot applies advanced thermal processes to recover energy carriers and biochar\, creating new circular value chains from wastewater residues.Risk-based safety validation: The pilot conducts detailed risk assessments for emerging contaminants\, including pharmaceuticals and personal care products\, in crops irrigated with reclaimed water. This supports compliance with EU Regulation 2020/741 and builds confidence for agricultural uptake.System-level planning: Rather than isolated demonstrations\, the pilot feeds into a co-developed Strategic Regional Master Plan for Circularity. This plan incorporates system design\, pricing models\, and governance considerations\, enabling future investments by the Region of Attica.								\n				\n				\n				\n									Expected outcomes and impact The pilot aims to establish a blueprint for reducing freshwater consumption and closing the loop on wastewater solids. Quantitative targets: The goal is to reduce freshwater consumption for urban green irrigation by 50%.Flood mitigation impacts: Nature-based solutions are expected to reduce rainfall runoff volumes by approximately 15% and peak discharge by up to 40%\, significantly lowering flood risks in intervention areas.Policy and investment uptake: The ultimate output is the adoption of the Strategic Master Plan by local authorities\, enabling future investments in circular water systems across the wider Attica region.
URL:https://www.theseus-h4c.eu/event/theseus-h4c-at-the-hubs4circularity-community-of-practice-webinar-series-featuring-united-circles-project/
LOCATION:Online\, Online
CATEGORIES:Past
ATTACH;FMTTYPE=image/jpeg:https://www.theseus-h4c.eu/wp-content/uploads/2025/04/1742900295727.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20250325
DTEND;VALUE=DATE:20250328
DTSTAMP:20260610T150433
CREATED:20250402T220902Z
LAST-MODIFIED:20260430T085225Z
UID:1083-1742860800-1743119999@www.theseus-h4c.eu
SUMMARY:THESEUS-H4C at ERF2025: Robotics for a Circular Future
DESCRIPTION:Enabling Circular Water Management at Urban and Regional Scale				\n				\n				\n					\n				\n		\n					\n		\n				\n				\n																														\n				\n				\n		\n				\n				\n					\n\n\n\n\n\n				\n				\n				\n				\n				\n									The Water Symbiotic Flows pilot demonstrates approaches for managing urban water and wastewater flows\, as circular urban resources. The pilot integrates decentralised and centralised solutions to recover water\, nutrients\, and energy\, supporting climate resilience and long-term sustainability in urban and peri-urban environments. 								\n				\n				\n				\n									The problem Urban water systems across Europe are under growing pressure from climate change\, population density\, and competing demands for freshwater. Traditional linear water management models treat wastewater and sewage sludge primarily as liabilities\, resulting in high resource losses\, increased energy consumption\, and environmental stress. 								\n				\n		\n				\n				\n									Even in regions with well-developed water infrastructure\, cities face recurring challenges related to water scarcity\, flood risks\, and the rising cost and energy intensity of water treatment. Opportunities to recover treated water\, nutrients\, and energy remain largely underexploited\, limiting the transition toward more resilient and circular water systems. 								\n				\n									\n				\n				\n									These challenges are particularly acute in water-stressed regions. In Attica\, Greece\, climate change is intensifying heatwaves and water scarcity during summer months\, placing increasing pressure on freshwater resources. Current systems rely heavily on potable water for irrigation and other non-potable uses\, while wastewater treatment remains energy-intensive and largely centralised. 								\n				\n				\n				\n									Additional barriers include: Infrastructure limitations: Integrating decentralised water treatment at the point of demand faces technical\, financial\, and regulatory challenges\, despite its potential to reduce system-wide energy use and losses.Wasteful by-products: Sewage sludge management is costly and complex. Drying and incineration involve high capital and operational costs\, while land application is difficult in dense urban contexts.Safety concerns: Reuse of treated wastewater for agriculture requires strict control of pathogens and emerging contaminants\, in line with the EU Water Reuse Regulation (EU) 2020/741.As a result\, valuable water\, nutrients\, and energy are lost\, while cities face rising water scarcity risks\, higher treatment costs\, and reduced adaptive capacity to climate impacts. 								\n				\n				\n				\n									What THESEUS is doing THESEUS is implementing a comprehensive set of solutions\, bridging the gap between urban water management and circular agriculture. Decentralised sewer mining: Sewer mining units based on membrane bioreactor technology abstract wastewater directly from local sewers\, treat it on-site\, and reuse it for irrigating urban green spaces\, including parks in Attica (Klonaridi – Fix Park). This reduces freshwater demand and helps mitigate urban heat stress.Rainwater harvesting and urban green spaces: Rainwater harvesting systems are implemented at the 21st Primary School of Athens as a first application\, where collected rainwater is used to irrigate rooftop and yard green spaces. In parallel small-scale composting units treat biowaste and produce compost applied within the on-site green areas\, with similar systems planned for additional residences and an educational building.Nature-based Solutions (NbS): Urban parks are redesigned using solutions such as rain gardens and bioswales (in the KAPAPS park of Athens) to harvest and manage rainwater and stormwater. These interventions reduce flood risks while providing alternative water sources for urban and industrial uses.Centralised reclaimed water: In Eastern Attica\, the project assesses the reuse of treated wastewater from a WWTP (Koropi-Peania) for agricultural irrigation. The activities focus on evaluating the fate and potential accumulation of emerging contaminants in reclaimed water\, soil and crops\, as well as the effects of reclaimed water on crop development and soil health\, feeding into the development of a Risk Management Plan in line with the EU Water Reuse Regulation 2020/741.Sludge valorisation via pyrolysis: Sewage sludge from major wastewater treatment plants\, at Psyttalia\, is treated using fast pyrolysis and torrefaction. These processes convert sludge into bio-oil\, gas\, and biochar\, transforming a disposal challenge into an energy and material resource.								\n				\n				\n				\n																														\n				\n				\n				\n									All solutions are implemented in real urban and peri-urban environments through a mix of new pilot installations and actions linked to existing water and wastewater systems The pilot applies a systemic approach that integrates water reuse\, risk-based safety validation\, and high-value resource recovery within urban and regional water systems. Beyond disposal: Instead of focusing on sludge drying or incineration\, the pilot applies advanced thermal processes to recover energy carriers and biochar\, creating new circular value chains from wastewater residues.Risk-based safety validation: The pilot conducts detailed risk assessments for emerging contaminants\, including pharmaceuticals and personal care products\, in crops irrigated with reclaimed water. This supports compliance with EU Regulation 2020/741 and builds confidence for agricultural uptake.System-level planning: Rather than isolated demonstrations\, the pilot feeds into a co-developed Strategic Regional Master Plan for Circularity. This plan incorporates system design\, pricing models\, and governance considerations\, enabling future investments by the Region of Attica.								\n				\n				\n				\n									Expected outcomes and impact The pilot aims to establish a blueprint for reducing freshwater consumption and closing the loop on wastewater solids. Quantitative targets: The goal is to reduce freshwater consumption for urban green irrigation by 50%.Flood mitigation impacts: Nature-based solutions are expected to reduce rainfall runoff volumes by approximately 15% and peak discharge by up to 40%\, significantly lowering flood risks in intervention areas.Policy and investment uptake: The ultimate output is the adoption of the Strategic Master Plan by local authorities\, enabling future investments in circular water systems across the wider Attica region.
URL:https://www.theseus-h4c.eu/event/theseus-h4c-at-erf2025-robotics-for-a-circular-future/
LOCATION:Rimini\, Rimini\, Italy
CATEGORIES:Past
ATTACH;FMTTYPE=image/jpeg:https://www.theseus-h4c.eu/wp-content/uploads/2025/04/IMG_8902.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20250319
DTEND;VALUE=DATE:20250320
DTSTAMP:20260610T150433
CREATED:20250402T215021Z
LAST-MODIFIED:20260430T085236Z
UID:1058-1742342400-1742428799@www.theseus-h4c.eu
SUMMARY:THESEUS-H4C Joins the Hubs4Circularity Community of Practice Webinar Series
DESCRIPTION:Enabling Circular Water Management at Urban and Regional Scale				\n				\n				\n					\n				\n		\n					\n		\n				\n				\n																														\n				\n				\n		\n				\n				\n					\n\n\n\n\n\n				\n				\n				\n				\n				\n									The Water Symbiotic Flows pilot demonstrates approaches for managing urban water and wastewater flows\, as circular urban resources. The pilot integrates decentralised and centralised solutions to recover water\, nutrients\, and energy\, supporting climate resilience and long-term sustainability in urban and peri-urban environments. 								\n				\n				\n				\n									The problem Urban water systems across Europe are under growing pressure from climate change\, population density\, and competing demands for freshwater. Traditional linear water management models treat wastewater and sewage sludge primarily as liabilities\, resulting in high resource losses\, increased energy consumption\, and environmental stress. 								\n				\n		\n				\n				\n									Even in regions with well-developed water infrastructure\, cities face recurring challenges related to water scarcity\, flood risks\, and the rising cost and energy intensity of water treatment. Opportunities to recover treated water\, nutrients\, and energy remain largely underexploited\, limiting the transition toward more resilient and circular water systems. 								\n				\n									\n				\n				\n									These challenges are particularly acute in water-stressed regions. In Attica\, Greece\, climate change is intensifying heatwaves and water scarcity during summer months\, placing increasing pressure on freshwater resources. Current systems rely heavily on potable water for irrigation and other non-potable uses\, while wastewater treatment remains energy-intensive and largely centralised. 								\n				\n				\n				\n									Additional barriers include: Infrastructure limitations: Integrating decentralised water treatment at the point of demand faces technical\, financial\, and regulatory challenges\, despite its potential to reduce system-wide energy use and losses.Wasteful by-products: Sewage sludge management is costly and complex. Drying and incineration involve high capital and operational costs\, while land application is difficult in dense urban contexts.Safety concerns: Reuse of treated wastewater for agriculture requires strict control of pathogens and emerging contaminants\, in line with the EU Water Reuse Regulation (EU) 2020/741.As a result\, valuable water\, nutrients\, and energy are lost\, while cities face rising water scarcity risks\, higher treatment costs\, and reduced adaptive capacity to climate impacts. 								\n				\n				\n				\n									What THESEUS is doing THESEUS is implementing a comprehensive set of solutions\, bridging the gap between urban water management and circular agriculture. Decentralised sewer mining: Sewer mining units based on membrane bioreactor technology abstract wastewater directly from local sewers\, treat it on-site\, and reuse it for irrigating urban green spaces\, including parks in Attica (Klonaridi – Fix Park). This reduces freshwater demand and helps mitigate urban heat stress.Rainwater harvesting and urban green spaces: Rainwater harvesting systems are implemented at the 21st Primary School of Athens as a first application\, where collected rainwater is used to irrigate rooftop and yard green spaces. In parallel small-scale composting units treat biowaste and produce compost applied within the on-site green areas\, with similar systems planned for additional residences and an educational building.Nature-based Solutions (NbS): Urban parks are redesigned using solutions such as rain gardens and bioswales (in the KAPAPS park of Athens) to harvest and manage rainwater and stormwater. These interventions reduce flood risks while providing alternative water sources for urban and industrial uses.Centralised reclaimed water: In Eastern Attica\, the project assesses the reuse of treated wastewater from a WWTP (Koropi-Peania) for agricultural irrigation. The activities focus on evaluating the fate and potential accumulation of emerging contaminants in reclaimed water\, soil and crops\, as well as the effects of reclaimed water on crop development and soil health\, feeding into the development of a Risk Management Plan in line with the EU Water Reuse Regulation 2020/741.Sludge valorisation via pyrolysis: Sewage sludge from major wastewater treatment plants\, at Psyttalia\, is treated using fast pyrolysis and torrefaction. These processes convert sludge into bio-oil\, gas\, and biochar\, transforming a disposal challenge into an energy and material resource.								\n				\n				\n				\n																														\n				\n				\n				\n									All solutions are implemented in real urban and peri-urban environments through a mix of new pilot installations and actions linked to existing water and wastewater systems The pilot applies a systemic approach that integrates water reuse\, risk-based safety validation\, and high-value resource recovery within urban and regional water systems. Beyond disposal: Instead of focusing on sludge drying or incineration\, the pilot applies advanced thermal processes to recover energy carriers and biochar\, creating new circular value chains from wastewater residues.Risk-based safety validation: The pilot conducts detailed risk assessments for emerging contaminants\, including pharmaceuticals and personal care products\, in crops irrigated with reclaimed water. This supports compliance with EU Regulation 2020/741 and builds confidence for agricultural uptake.System-level planning: Rather than isolated demonstrations\, the pilot feeds into a co-developed Strategic Regional Master Plan for Circularity. This plan incorporates system design\, pricing models\, and governance considerations\, enabling future investments by the Region of Attica.								\n				\n				\n				\n									Expected outcomes and impact The pilot aims to establish a blueprint for reducing freshwater consumption and closing the loop on wastewater solids. Quantitative targets: The goal is to reduce freshwater consumption for urban green irrigation by 50%.Flood mitigation impacts: Nature-based solutions are expected to reduce rainfall runoff volumes by approximately 15% and peak discharge by up to 40%\, significantly lowering flood risks in intervention areas.Policy and investment uptake: The ultimate output is the adoption of the Strategic Master Plan by local authorities\, enabling future investments in circular water systems across the wider Attica region.
URL:https://www.theseus-h4c.eu/event/theseus-h4c-joins-the-hubs4circularity-community-of-practice-webinar-series/
LOCATION:Online\, Online
CATEGORIES:Past
ATTACH;FMTTYPE=image/jpeg:https://www.theseus-h4c.eu/wp-content/uploads/2025/04/event3.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20250301
DTEND;VALUE=DATE:20250401
DTSTAMP:20260610T150433
CREATED:20250402T220205Z
LAST-MODIFIED:20260430T085246Z
UID:1076-1740787200-1743465599@www.theseus-h4c.eu
SUMMARY:THESEUS-H4C at ERF2025: Exploring Robotics for a Sustainable Future
DESCRIPTION:Enabling Circular Water Management at Urban and Regional Scale				\n				\n				\n					\n				\n		\n					\n		\n				\n				\n																														\n				\n				\n		\n				\n				\n					\n\n\n\n\n\n				\n				\n				\n				\n				\n									The Water Symbiotic Flows pilot demonstrates approaches for managing urban water and wastewater flows\, as circular urban resources. The pilot integrates decentralised and centralised solutions to recover water\, nutrients\, and energy\, supporting climate resilience and long-term sustainability in urban and peri-urban environments. 								\n				\n				\n				\n									The problem Urban water systems across Europe are under growing pressure from climate change\, population density\, and competing demands for freshwater. Traditional linear water management models treat wastewater and sewage sludge primarily as liabilities\, resulting in high resource losses\, increased energy consumption\, and environmental stress. 								\n				\n		\n				\n				\n									Even in regions with well-developed water infrastructure\, cities face recurring challenges related to water scarcity\, flood risks\, and the rising cost and energy intensity of water treatment. Opportunities to recover treated water\, nutrients\, and energy remain largely underexploited\, limiting the transition toward more resilient and circular water systems. 								\n				\n									\n				\n				\n									These challenges are particularly acute in water-stressed regions. In Attica\, Greece\, climate change is intensifying heatwaves and water scarcity during summer months\, placing increasing pressure on freshwater resources. Current systems rely heavily on potable water for irrigation and other non-potable uses\, while wastewater treatment remains energy-intensive and largely centralised. 								\n				\n				\n				\n									Additional barriers include: Infrastructure limitations: Integrating decentralised water treatment at the point of demand faces technical\, financial\, and regulatory challenges\, despite its potential to reduce system-wide energy use and losses.Wasteful by-products: Sewage sludge management is costly and complex. Drying and incineration involve high capital and operational costs\, while land application is difficult in dense urban contexts.Safety concerns: Reuse of treated wastewater for agriculture requires strict control of pathogens and emerging contaminants\, in line with the EU Water Reuse Regulation (EU) 2020/741.As a result\, valuable water\, nutrients\, and energy are lost\, while cities face rising water scarcity risks\, higher treatment costs\, and reduced adaptive capacity to climate impacts. 								\n				\n				\n				\n									What THESEUS is doing THESEUS is implementing a comprehensive set of solutions\, bridging the gap between urban water management and circular agriculture. Decentralised sewer mining: Sewer mining units based on membrane bioreactor technology abstract wastewater directly from local sewers\, treat it on-site\, and reuse it for irrigating urban green spaces\, including parks in Attica (Klonaridi – Fix Park). This reduces freshwater demand and helps mitigate urban heat stress.Rainwater harvesting and urban green spaces: Rainwater harvesting systems are implemented at the 21st Primary School of Athens as a first application\, where collected rainwater is used to irrigate rooftop and yard green spaces. In parallel small-scale composting units treat biowaste and produce compost applied within the on-site green areas\, with similar systems planned for additional residences and an educational building.Nature-based Solutions (NbS): Urban parks are redesigned using solutions such as rain gardens and bioswales (in the KAPAPS park of Athens) to harvest and manage rainwater and stormwater. These interventions reduce flood risks while providing alternative water sources for urban and industrial uses.Centralised reclaimed water: In Eastern Attica\, the project assesses the reuse of treated wastewater from a WWTP (Koropi-Peania) for agricultural irrigation. The activities focus on evaluating the fate and potential accumulation of emerging contaminants in reclaimed water\, soil and crops\, as well as the effects of reclaimed water on crop development and soil health\, feeding into the development of a Risk Management Plan in line with the EU Water Reuse Regulation 2020/741.Sludge valorisation via pyrolysis: Sewage sludge from major wastewater treatment plants\, at Psyttalia\, is treated using fast pyrolysis and torrefaction. These processes convert sludge into bio-oil\, gas\, and biochar\, transforming a disposal challenge into an energy and material resource.								\n				\n				\n				\n																														\n				\n				\n				\n									All solutions are implemented in real urban and peri-urban environments through a mix of new pilot installations and actions linked to existing water and wastewater systems The pilot applies a systemic approach that integrates water reuse\, risk-based safety validation\, and high-value resource recovery within urban and regional water systems. Beyond disposal: Instead of focusing on sludge drying or incineration\, the pilot applies advanced thermal processes to recover energy carriers and biochar\, creating new circular value chains from wastewater residues.Risk-based safety validation: The pilot conducts detailed risk assessments for emerging contaminants\, including pharmaceuticals and personal care products\, in crops irrigated with reclaimed water. This supports compliance with EU Regulation 2020/741 and builds confidence for agricultural uptake.System-level planning: Rather than isolated demonstrations\, the pilot feeds into a co-developed Strategic Regional Master Plan for Circularity. This plan incorporates system design\, pricing models\, and governance considerations\, enabling future investments by the Region of Attica.								\n				\n				\n				\n									Expected outcomes and impact The pilot aims to establish a blueprint for reducing freshwater consumption and closing the loop on wastewater solids. Quantitative targets: The goal is to reduce freshwater consumption for urban green irrigation by 50%.Flood mitigation impacts: Nature-based solutions are expected to reduce rainfall runoff volumes by approximately 15% and peak discharge by up to 40%\, significantly lowering flood risks in intervention areas.Policy and investment uptake: The ultimate output is the adoption of the Strategic Master Plan by local authorities\, enabling future investments in circular water systems across the wider Attica region.
URL:https://www.theseus-h4c.eu/event/theseus-h4c-at-erf2025-exploring-robotics-for-a-sustainable-future/
LOCATION:Online\, Online
CATEGORIES:Past
ATTACH;FMTTYPE=image/jpeg:https://www.theseus-h4c.eu/wp-content/uploads/2025/04/event6.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20250301
DTEND;VALUE=DATE:20250401
DTSTAMP:20260610T150433
CREATED:20250402T215844Z
LAST-MODIFIED:20260430T085256Z
UID:1069-1740787200-1743465599@www.theseus-h4c.eu
SUMMARY:THESEUS-H4C at Verde.tec 2024: Circular Economy in Action
DESCRIPTION:Enabling Circular Water Management at Urban and Regional Scale				\n				\n				\n					\n				\n		\n					\n		\n				\n				\n																														\n				\n				\n		\n				\n				\n					\n\n\n\n\n\n				\n				\n				\n				\n				\n									The Water Symbiotic Flows pilot demonstrates approaches for managing urban water and wastewater flows\, as circular urban resources. The pilot integrates decentralised and centralised solutions to recover water\, nutrients\, and energy\, supporting climate resilience and long-term sustainability in urban and peri-urban environments. 								\n				\n				\n				\n									The problem Urban water systems across Europe are under growing pressure from climate change\, population density\, and competing demands for freshwater. Traditional linear water management models treat wastewater and sewage sludge primarily as liabilities\, resulting in high resource losses\, increased energy consumption\, and environmental stress. 								\n				\n		\n				\n				\n									Even in regions with well-developed water infrastructure\, cities face recurring challenges related to water scarcity\, flood risks\, and the rising cost and energy intensity of water treatment. Opportunities to recover treated water\, nutrients\, and energy remain largely underexploited\, limiting the transition toward more resilient and circular water systems. 								\n				\n									\n				\n				\n									These challenges are particularly acute in water-stressed regions. In Attica\, Greece\, climate change is intensifying heatwaves and water scarcity during summer months\, placing increasing pressure on freshwater resources. Current systems rely heavily on potable water for irrigation and other non-potable uses\, while wastewater treatment remains energy-intensive and largely centralised. 								\n				\n				\n				\n									Additional barriers include: Infrastructure limitations: Integrating decentralised water treatment at the point of demand faces technical\, financial\, and regulatory challenges\, despite its potential to reduce system-wide energy use and losses.Wasteful by-products: Sewage sludge management is costly and complex. Drying and incineration involve high capital and operational costs\, while land application is difficult in dense urban contexts.Safety concerns: Reuse of treated wastewater for agriculture requires strict control of pathogens and emerging contaminants\, in line with the EU Water Reuse Regulation (EU) 2020/741.As a result\, valuable water\, nutrients\, and energy are lost\, while cities face rising water scarcity risks\, higher treatment costs\, and reduced adaptive capacity to climate impacts. 								\n				\n				\n				\n									What THESEUS is doing THESEUS is implementing a comprehensive set of solutions\, bridging the gap between urban water management and circular agriculture. Decentralised sewer mining: Sewer mining units based on membrane bioreactor technology abstract wastewater directly from local sewers\, treat it on-site\, and reuse it for irrigating urban green spaces\, including parks in Attica (Klonaridi – Fix Park). This reduces freshwater demand and helps mitigate urban heat stress.Rainwater harvesting and urban green spaces: Rainwater harvesting systems are implemented at the 21st Primary School of Athens as a first application\, where collected rainwater is used to irrigate rooftop and yard green spaces. In parallel small-scale composting units treat biowaste and produce compost applied within the on-site green areas\, with similar systems planned for additional residences and an educational building.Nature-based Solutions (NbS): Urban parks are redesigned using solutions such as rain gardens and bioswales (in the KAPAPS park of Athens) to harvest and manage rainwater and stormwater. These interventions reduce flood risks while providing alternative water sources for urban and industrial uses.Centralised reclaimed water: In Eastern Attica\, the project assesses the reuse of treated wastewater from a WWTP (Koropi-Peania) for agricultural irrigation. The activities focus on evaluating the fate and potential accumulation of emerging contaminants in reclaimed water\, soil and crops\, as well as the effects of reclaimed water on crop development and soil health\, feeding into the development of a Risk Management Plan in line with the EU Water Reuse Regulation 2020/741.Sludge valorisation via pyrolysis: Sewage sludge from major wastewater treatment plants\, at Psyttalia\, is treated using fast pyrolysis and torrefaction. These processes convert sludge into bio-oil\, gas\, and biochar\, transforming a disposal challenge into an energy and material resource.								\n				\n				\n				\n																														\n				\n				\n				\n									All solutions are implemented in real urban and peri-urban environments through a mix of new pilot installations and actions linked to existing water and wastewater systems The pilot applies a systemic approach that integrates water reuse\, risk-based safety validation\, and high-value resource recovery within urban and regional water systems. Beyond disposal: Instead of focusing on sludge drying or incineration\, the pilot applies advanced thermal processes to recover energy carriers and biochar\, creating new circular value chains from wastewater residues.Risk-based safety validation: The pilot conducts detailed risk assessments for emerging contaminants\, including pharmaceuticals and personal care products\, in crops irrigated with reclaimed water. This supports compliance with EU Regulation 2020/741 and builds confidence for agricultural uptake.System-level planning: Rather than isolated demonstrations\, the pilot feeds into a co-developed Strategic Regional Master Plan for Circularity. This plan incorporates system design\, pricing models\, and governance considerations\, enabling future investments by the Region of Attica.								\n				\n				\n				\n									Expected outcomes and impact The pilot aims to establish a blueprint for reducing freshwater consumption and closing the loop on wastewater solids. Quantitative targets: The goal is to reduce freshwater consumption for urban green irrigation by 50%.Flood mitigation impacts: Nature-based solutions are expected to reduce rainfall runoff volumes by approximately 15% and peak discharge by up to 40%\, significantly lowering flood risks in intervention areas.Policy and investment uptake: The ultimate output is the adoption of the Strategic Master Plan by local authorities\, enabling future investments in circular water systems across the wider Attica region.
URL:https://www.theseus-h4c.eu/event/theseus-h4c-at-verde-tec-2024-circular-economy-in-action/
LOCATION:MEC\, @ MEC Paianias\, Athens\, Greece
CATEGORIES:Past
ATTACH;FMTTYPE=image/jpeg:https://www.theseus-h4c.eu/wp-content/uploads/2025/04/event5.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20250115
DTEND;VALUE=DATE:20250116
DTSTAMP:20260610T150433
CREATED:20250320T145119Z
LAST-MODIFIED:20260430T085404Z
UID:453-1736899200-1736985599@www.theseus-h4c.eu
SUMMARY:THESEUS-H4C at CORE Innovation Days: Driving Innovation in Energy and Sustainability
DESCRIPTION:Enabling Circular Water Management at Urban and Regional Scale				\n				\n				\n					\n				\n		\n					\n		\n				\n				\n																														\n				\n				\n		\n				\n				\n					\n\n\n\n\n\n				\n				\n				\n				\n				\n									The Water Symbiotic Flows pilot demonstrates approaches for managing urban water and wastewater flows\, as circular urban resources. The pilot integrates decentralised and centralised solutions to recover water\, nutrients\, and energy\, supporting climate resilience and long-term sustainability in urban and peri-urban environments. 								\n				\n				\n				\n									The problem Urban water systems across Europe are under growing pressure from climate change\, population density\, and competing demands for freshwater. Traditional linear water management models treat wastewater and sewage sludge primarily as liabilities\, resulting in high resource losses\, increased energy consumption\, and environmental stress. 								\n				\n		\n				\n				\n									Even in regions with well-developed water infrastructure\, cities face recurring challenges related to water scarcity\, flood risks\, and the rising cost and energy intensity of water treatment. Opportunities to recover treated water\, nutrients\, and energy remain largely underexploited\, limiting the transition toward more resilient and circular water systems. 								\n				\n									\n				\n				\n									These challenges are particularly acute in water-stressed regions. In Attica\, Greece\, climate change is intensifying heatwaves and water scarcity during summer months\, placing increasing pressure on freshwater resources. Current systems rely heavily on potable water for irrigation and other non-potable uses\, while wastewater treatment remains energy-intensive and largely centralised. 								\n				\n				\n				\n									Additional barriers include: Infrastructure limitations: Integrating decentralised water treatment at the point of demand faces technical\, financial\, and regulatory challenges\, despite its potential to reduce system-wide energy use and losses.Wasteful by-products: Sewage sludge management is costly and complex. Drying and incineration involve high capital and operational costs\, while land application is difficult in dense urban contexts.Safety concerns: Reuse of treated wastewater for agriculture requires strict control of pathogens and emerging contaminants\, in line with the EU Water Reuse Regulation (EU) 2020/741.As a result\, valuable water\, nutrients\, and energy are lost\, while cities face rising water scarcity risks\, higher treatment costs\, and reduced adaptive capacity to climate impacts. 								\n				\n				\n				\n									What THESEUS is doing THESEUS is implementing a comprehensive set of solutions\, bridging the gap between urban water management and circular agriculture. Decentralised sewer mining: Sewer mining units based on membrane bioreactor technology abstract wastewater directly from local sewers\, treat it on-site\, and reuse it for irrigating urban green spaces\, including parks in Attica (Klonaridi – Fix Park). This reduces freshwater demand and helps mitigate urban heat stress.Rainwater harvesting and urban green spaces: Rainwater harvesting systems are implemented at the 21st Primary School of Athens as a first application\, where collected rainwater is used to irrigate rooftop and yard green spaces. In parallel small-scale composting units treat biowaste and produce compost applied within the on-site green areas\, with similar systems planned for additional residences and an educational building.Nature-based Solutions (NbS): Urban parks are redesigned using solutions such as rain gardens and bioswales (in the KAPAPS park of Athens) to harvest and manage rainwater and stormwater. These interventions reduce flood risks while providing alternative water sources for urban and industrial uses.Centralised reclaimed water: In Eastern Attica\, the project assesses the reuse of treated wastewater from a WWTP (Koropi-Peania) for agricultural irrigation. The activities focus on evaluating the fate and potential accumulation of emerging contaminants in reclaimed water\, soil and crops\, as well as the effects of reclaimed water on crop development and soil health\, feeding into the development of a Risk Management Plan in line with the EU Water Reuse Regulation 2020/741.Sludge valorisation via pyrolysis: Sewage sludge from major wastewater treatment plants\, at Psyttalia\, is treated using fast pyrolysis and torrefaction. These processes convert sludge into bio-oil\, gas\, and biochar\, transforming a disposal challenge into an energy and material resource.								\n				\n				\n				\n																														\n				\n				\n				\n									All solutions are implemented in real urban and peri-urban environments through a mix of new pilot installations and actions linked to existing water and wastewater systems The pilot applies a systemic approach that integrates water reuse\, risk-based safety validation\, and high-value resource recovery within urban and regional water systems. Beyond disposal: Instead of focusing on sludge drying or incineration\, the pilot applies advanced thermal processes to recover energy carriers and biochar\, creating new circular value chains from wastewater residues.Risk-based safety validation: The pilot conducts detailed risk assessments for emerging contaminants\, including pharmaceuticals and personal care products\, in crops irrigated with reclaimed water. This supports compliance with EU Regulation 2020/741 and builds confidence for agricultural uptake.System-level planning: Rather than isolated demonstrations\, the pilot feeds into a co-developed Strategic Regional Master Plan for Circularity. This plan incorporates system design\, pricing models\, and governance considerations\, enabling future investments by the Region of Attica.								\n				\n				\n				\n									Expected outcomes and impact The pilot aims to establish a blueprint for reducing freshwater consumption and closing the loop on wastewater solids. Quantitative targets: The goal is to reduce freshwater consumption for urban green irrigation by 50%.Flood mitigation impacts: Nature-based solutions are expected to reduce rainfall runoff volumes by approximately 15% and peak discharge by up to 40%\, significantly lowering flood risks in intervention areas.Policy and investment uptake: The ultimate output is the adoption of the Strategic Master Plan by local authorities\, enabling future investments in circular water systems across the wider Attica region.
URL:https://www.theseus-h4c.eu/event/event-1/
LOCATION:Test\, Athens\, Athens\, Greece
CATEGORIES:Past
ATTACH;FMTTYPE=image/jpeg:https://www.theseus-h4c.eu/wp-content/uploads/2025/03/Core-innovation-Days-2-1.jpg
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BEGIN:VEVENT
DTSTART;VALUE=DATE:20241203
DTEND;VALUE=DATE:20241206
DTSTAMP:20260610T150433
CREATED:20250326T125836Z
LAST-MODIFIED:20260430T085418Z
UID:638-1733184000-1733443199@www.theseus-h4c.eu
SUMMARY:THESEUS-H4C Kick-off Meeting: A Bold Step Toward Circular Transformation
DESCRIPTION:Enabling Circular Water Management at Urban and Regional Scale				\n				\n				\n					\n				\n		\n					\n		\n				\n				\n																														\n				\n				\n		\n				\n				\n					\n\n\n\n\n\n				\n				\n				\n				\n				\n									The Water Symbiotic Flows pilot demonstrates approaches for managing urban water and wastewater flows\, as circular urban resources. The pilot integrates decentralised and centralised solutions to recover water\, nutrients\, and energy\, supporting climate resilience and long-term sustainability in urban and peri-urban environments. 								\n				\n				\n				\n									The problem Urban water systems across Europe are under growing pressure from climate change\, population density\, and competing demands for freshwater. Traditional linear water management models treat wastewater and sewage sludge primarily as liabilities\, resulting in high resource losses\, increased energy consumption\, and environmental stress. 								\n				\n		\n				\n				\n									Even in regions with well-developed water infrastructure\, cities face recurring challenges related to water scarcity\, flood risks\, and the rising cost and energy intensity of water treatment. Opportunities to recover treated water\, nutrients\, and energy remain largely underexploited\, limiting the transition toward more resilient and circular water systems. 								\n				\n									\n				\n				\n									These challenges are particularly acute in water-stressed regions. In Attica\, Greece\, climate change is intensifying heatwaves and water scarcity during summer months\, placing increasing pressure on freshwater resources. Current systems rely heavily on potable water for irrigation and other non-potable uses\, while wastewater treatment remains energy-intensive and largely centralised. 								\n				\n				\n				\n									Additional barriers include: Infrastructure limitations: Integrating decentralised water treatment at the point of demand faces technical\, financial\, and regulatory challenges\, despite its potential to reduce system-wide energy use and losses.Wasteful by-products: Sewage sludge management is costly and complex. Drying and incineration involve high capital and operational costs\, while land application is difficult in dense urban contexts.Safety concerns: Reuse of treated wastewater for agriculture requires strict control of pathogens and emerging contaminants\, in line with the EU Water Reuse Regulation (EU) 2020/741.As a result\, valuable water\, nutrients\, and energy are lost\, while cities face rising water scarcity risks\, higher treatment costs\, and reduced adaptive capacity to climate impacts. 								\n				\n				\n				\n									What THESEUS is doing THESEUS is implementing a comprehensive set of solutions\, bridging the gap between urban water management and circular agriculture. Decentralised sewer mining: Sewer mining units based on membrane bioreactor technology abstract wastewater directly from local sewers\, treat it on-site\, and reuse it for irrigating urban green spaces\, including parks in Attica (Klonaridi – Fix Park). This reduces freshwater demand and helps mitigate urban heat stress.Rainwater harvesting and urban green spaces: Rainwater harvesting systems are implemented at the 21st Primary School of Athens as a first application\, where collected rainwater is used to irrigate rooftop and yard green spaces. In parallel small-scale composting units treat biowaste and produce compost applied within the on-site green areas\, with similar systems planned for additional residences and an educational building.Nature-based Solutions (NbS): Urban parks are redesigned using solutions such as rain gardens and bioswales (in the KAPAPS park of Athens) to harvest and manage rainwater and stormwater. These interventions reduce flood risks while providing alternative water sources for urban and industrial uses.Centralised reclaimed water: In Eastern Attica\, the project assesses the reuse of treated wastewater from a WWTP (Koropi-Peania) for agricultural irrigation. The activities focus on evaluating the fate and potential accumulation of emerging contaminants in reclaimed water\, soil and crops\, as well as the effects of reclaimed water on crop development and soil health\, feeding into the development of a Risk Management Plan in line with the EU Water Reuse Regulation 2020/741.Sludge valorisation via pyrolysis: Sewage sludge from major wastewater treatment plants\, at Psyttalia\, is treated using fast pyrolysis and torrefaction. These processes convert sludge into bio-oil\, gas\, and biochar\, transforming a disposal challenge into an energy and material resource.								\n				\n				\n				\n																														\n				\n				\n				\n									All solutions are implemented in real urban and peri-urban environments through a mix of new pilot installations and actions linked to existing water and wastewater systems The pilot applies a systemic approach that integrates water reuse\, risk-based safety validation\, and high-value resource recovery within urban and regional water systems. Beyond disposal: Instead of focusing on sludge drying or incineration\, the pilot applies advanced thermal processes to recover energy carriers and biochar\, creating new circular value chains from wastewater residues.Risk-based safety validation: The pilot conducts detailed risk assessments for emerging contaminants\, including pharmaceuticals and personal care products\, in crops irrigated with reclaimed water. This supports compliance with EU Regulation 2020/741 and builds confidence for agricultural uptake.System-level planning: Rather than isolated demonstrations\, the pilot feeds into a co-developed Strategic Regional Master Plan for Circularity. This plan incorporates system design\, pricing models\, and governance considerations\, enabling future investments by the Region of Attica.								\n				\n				\n				\n									Expected outcomes and impact The pilot aims to establish a blueprint for reducing freshwater consumption and closing the loop on wastewater solids. Quantitative targets: The goal is to reduce freshwater consumption for urban green irrigation by 50%.Flood mitigation impacts: Nature-based solutions are expected to reduce rainfall runoff volumes by approximately 15% and peak discharge by up to 40%\, significantly lowering flood risks in intervention areas.Policy and investment uptake: The ultimate output is the adoption of the Strategic Master Plan by local authorities\, enabling future investments in circular water systems across the wider Attica region.
URL:https://www.theseus-h4c.eu/event/event-2/
LOCATION:Athens\, Greece\, Athens\, Greece
CATEGORIES:Past
ATTACH;FMTTYPE=image/jpeg:https://www.theseus-h4c.eu/wp-content/uploads/2025/03/event2-e1762247060879.jpg
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