1. Key Laboratory of Drinking Water Science and Technology, Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China
2. Section of Sanitary Engineering, Department of Water Management, Faculty of Civil Engineering and Geosciences, Delft University of Technology, Delft, CN 2628, The Netherlands
3. College of Environmental Science and Engineering, Guilin University of Technology, Guangxi 541004, China
4. Department Research & Innovation Waternet, P.O. Box 94370 GJ Amsterdam 1090, The Netherlands
5. University of Chinese Academy of Sciences, Beijing 101408, China