1. National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Engineering Research Center of Beijing, Beijing University of Technology, 100124 Beijing, China
2. Water Chemistry and Water Technology, Engler-Bunte-Institut, Karlsruhe Institute of Technology, 76137 Karlsruhe, Germany
3. College of Architecture and Civil Engineering, Faculty of Architecture, Civil and Transportation Engineering (FACTE), Beijing University of Technology, Beijing 100124, China
4. Chair of Urban Water Systems Engineering, Technical University of Munich, Am Coulombwall 3, 85748 Garching, Germany