Wastewater treatment with hydrogen and energy recovery in the dairy industry
In the REWAGEN project "Electrochemical WAter treatment system in the dairy industry with hydroGEN REcovery and electricity production", a European project consortium with partners from research and industry under the leadership of the Fraunhofer IGB is developing a multi-stage process for the efficient electrochemical treatment of process and waste water from the milk-processing industry. The individual process steps are combined and integrated into a closed process. The aim is that each process step delivers a material flow that can be further processed or returned to the system. For example, the hydrogen produced during the electrolytic treatment of the water is to be used to supply parts of the plant with electrical energy. The purified water can be directly reused, depending on requirements. By means of a modular design, the system is to be flexibly adapted to the wastewater volumes of even smaller dairies and milk-processing plants.