1. School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
2. National Engineering Laboratory for Industrial Wastewater Treatment, East China University of Science and Technology, Shanghai 200237, P. R. China
3. Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, P. R. China
4. Process and Systems Engineering Center (PROSYS), Department of Chemical and Biochemical Engineering, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
5. School of Civil and Environmental Engineering, Nanyang Technological University, Singapore 639798
6. Singapore Membrane Technology Centre, Nanyang Environment & Water Research Institute, Nanyang Technological University, Singapore 637141