1. Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911MA Leeuwarden, The Netherlands
2. Environmental Technology, Wageningen University, Bornse Weilanden 9, 6708WG Wageningen, The Netherlands
3. Faculty of Natural and Environmental Sciences, Hochschule Zittau/Görlitz, Theodor-Körner-Allee 16, 02763 Zittau, Germany