1. Wetsus, European Centre of Excellence for Sustainable Water Technology, Leeuwarden, the Netherlands
2. Microbial Systems Ecology, Department of Freshwater and Marine Ecology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, the Netherlands
3. Environmental Technology, Wageningen University & Research, Wageningen, the Netherlands
4. Paqell B.V., Utrecht, the Netherlands
5. Laboratory of Microbiology, Wageningen University & Research, Wageningen, the Netherlands