1. Sanitary Engineering Section, Department of Water Management Delft University of Technology Delft the Netherlands
2. Faculty of Bioscience Engineering, Center for Microbial Ecology and Technology Ghent University Ghent Belgium
3. Division of Soil and Water Management, Department of Earth and Environmental Sciences KU Leuven Leuven Belgium
4. Bio‐ and Chemical Systems Technology, Reactor Engineering and Safety (CREaS), Department of Chemical Engineering KU Leuven Leuven Belgium
5. Center for Advanced Process Technology for Urban Resource Recovery Ghent Belgium