The Red-SuN project aims at proposing and evaluating new routes to treat and/or recover nitrogen from wastewater without compromising the carbon-footprint of the plants. An in-depth evaluation of the current practice in the four countries participating to the project (France, Finland, Poland and Flanders, Belgium) and of the required optimisation/retrofitting of the existing plants to meet the revised European directive forms the starting point. A full evaluation of innovative technologies to recover nitrogen will be carried out, as well as the environmental impact assessment of the current and future nitrogen-related unit processes. The different scenarios will be simulated on a plant-wide level. Throughout the project, a close collaboration will be maintained with water utilities in particular who will share their data, their experiences and their vision towards the implementation of the new directive in a circular economy context.

2026

2028