1. Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, The Netherlands
2. Membrane Science and Technology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
3. L.N. Gumilyov Eurasian National University, Satpayev str. 2, 010008 Astana, Repulic of Kazakhstan