This project will develop an integral technology, based on a multi-barrier approach, to treat the effluents of wastewater treatment plants(WWTPs) to maximise the reduction of contaminants of emerging concern (CECs).
A membrane nanofiltration (NF) technology will be applied to reduce CECs in its permeate stream by at least 90 % while retaining thenutrients. A residual disinfection using chlorine dioxide produced electrochemically will be added to the stream used for crops irrigation (route A). The CECs in the polluted concentrate (retentate) stream will be reduced by at least 80 % by light driven electro-chemicaloxidation. When discharged into the aquatic system (route B), it will contribute to the quality improvement of the surface water body.
A prototype treatment plant will be set-up and evaluated for irrigation in long-term tests with the help of agricultural test pots. A review investigation of CECs spread will be performed at four regional showcases in Europe and Africa. It will include a detailed assessment of the individual situation and surrounding condition. Transfer concepts will be developed to transfer the results of thetreatment technology to other regions, especially in low- and middle-income countries.
- Jan Gäbler, Fraunhofer Institute for Surface Engineering and Thin Films IST, Germany (Coordinator)
- Rebecca Schwantes, SolarSpring GmbH, Germany
- Paola Verlicchi, University of Ferrara, Italy
- Pawel Krzeminski, Norwegian Institute for Water Research (NIVA), Norway
- Vítor Vilar, Faculty of Engineering University of Porto, Portugal
- Marta Carvalho, AdP – Águas de Portugal, Serviços Ambientais, S.A., Portugal
- Gideon Wolfaardt, Stellenbosch University, South Africa
- Manuel Andrés Rodrigo, University of Castilla La Mancha, Spain