Synergies
THESEUS collaborates with United Circles, its Horizon Europe sister project, to strengthen knowledge exchange around Industrial-Urban Symbiosis, circular value chains and regional Hubs for Circularity across Europe.
United Circles
Networked industrial-urban symbiosis value-chain demonstrators for biomaterials, C&DW, circular water loops and WWTPs, driven by Hubs 4 Circularity.
United Circles shares with THESEUS the common goal of supporting the transition of cities and industries toward circular, low-carbon ecosystems, focusing on the practical implementation of industrial-urban symbiosis (I-US) to turn urban waste into valuable resources.
Three urban waste streams
United Circles develops and demonstrates innovative solutions to transform three high-impact waste streams into new value chains.
Construction & demolition waste
Recovered and upcycled into low-carbon building materials for a circular construction sector.
Urban & industrial wastewater
Treatment plants reimagined as resource-recovery centres for water, energy and nutrients.
Food waste & used cooking oil
Converted into fully biodegradable bioplastics as a sustainable alternative to fossil plastics.
Flagship innovations
Demonstrations that show how urban waste streams can be transformed into high-value materials and products.
3D-printed circular building
A two-storey building 3D-printed from construction waste, using low-carbon cement and upcycled materials.
Resource-recovery WWTPs
Wastewater plants producing clean water, biomethane, fertilisers and recycled cellulose for industrial use.
Bioplastics from cooking oil
Used cooking oil converted into fully biodegradable bioplastics, replacing fossil-fuel-based plastics.
Regional Circularity Hubs (H4C)
Platforms for collaboration among industries, municipalities, researchers and citizens, supporting governance, investment and knowledge sharing.
Complementary by design
The complementarity with THESEUS lies in the different but reinforcing project scopes.
THESEUS establishes Greece’s first H4C from the Attica region, validating circular solutions for materials, water and energy, supported by digital and robotic technologies, governance models and replication activities.
United Circles focuses on three networked I-US value chain demonstrators, each embedded in a Hub4Circularity and supported by governance frameworks, financing methodologies, digital tools, social and environmental innovation, and a material and products observatory.
Funded by the European Union under the Horizon Europe Programme, Grant Agreement No. 101178059. Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or HADEA. Neither the European Union nor the granting authority can be held responsible for them.
