1. Center for Microbial Ecology and Technology (CMET), Department of Biotechnology, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
2. Center for Advanced Process Technology for Urban Resource Recovery (CAPTURE), Frieda Saeysstraat 1, B-9000 Ghent, Belgium
3. Pantarein Water, Egide Walschaertsstraat 22L, B-2800 Mechelen, Belgium