REV:EU – a new EU project for circular urban water systems

REV:EU develops sustainable wastewater solutions in cities. Stockholm, Oslo, and Paris will serve as testbeds to develop and implement innovative wastewater solutions.

A new European research and innovation project, REV:EU – Regenerative Vital Water for European Cities, has been awarded funding under the EU partnership Driving Urban Transitions (DUT). The project is led by the City of Stockholm and brings together stakeholders from Sweden, Norway, and France. The work is linked to three cities—Stockholm, Oslo, and Paris—which serve as test beds for the development and implementation of source-separated wastewater solutions. Particular focus is placed on recovering plant nutrients from urine and reusing graywater. Urine-sorting systems will be implemented in Paris and Stockholm, where the collected urine will be converted into a fertilizer used for green spaces in the city. Separate collection and local treatment of graywater will be tested in Stockholm and Oslo.

Luleå University of Technology, together with Stockholm Water and Waste utility (Stockholm Vatten oc Avfall), will design and test a pilot facility for graywater treatment. Among other things, we will test how graywater quality changes with and without kitchen wastewater. We will also develop criteria for sizing the biological treatment stage. The treated graywater will then be used for irrigating park vegetation.

REV:E’s overall goal is to contribute to reduced resource use and a lower climate impact from our wastewater systems.

We will be organizing regular seminars—stay tuned!