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Research project RoKKa starts
Recovering raw materials from wastewater and promoting climate protection: This is the aim of our new research project RoKKa (raw material source sewage sludge and climate protection at wastewater treatment plants).
To this end, we are investigating the various processes of targeted phosphorus elimination from wastewater at the Urban Water Management research group with the new objective of developing a local source of phosphorus for microalgae for the production of beta-glucans as a plant biostimulant and for fertilizer production. We are also looking at the climate compatibility of the bioeconomic production processes from wastewater investigated in RoKKa. Nitrous oxide (N2O) plays a key role here, as one gram of N2Ocontributes 265 times more to the greenhouse effect in 100 years than one gram ofCO2. Direct nitrous oxide emissions are produced during wastewater treatment as intermediate and by-products of biological nitrogen elimination. Innovative separation and utilization of nitrogen from wastewater therefore also holds great potential for climate protection.
Scientists from the research institutes of the Fraunhofer Institute for Interfacial Engineering and Biotechnology (IGB), the University of Stuttgart, the University of Kassel and the Technical University of Kaiserslautern are working on the sustainable biorefinery from wastewater at the two project sites in Erbach and Neu-Ulm together with the companies SolarSpring GmbH, Deukum GmbH, Nanoscience for life GmbH, Umwelttechnik-BW GmbH, the city of Erbach and the Zweckverband Klärwerk Steinhäule.
The project is funded by the Baden-Württemberg Ministry for the Environment, Climate Protection and the Energy Sector and co-financed by the European Union.
Further information at: