1. Australian Centre for Water and Environmental Biotechnology (ACWEB, formerly AWMC), The University of Queensland, St. Lucia, Queensland 4072, Australia
2. College of Environmental and Resource Science, Zhejiang University, Hangzhou, Zhejiang 310058, China
3. Department of Civil and Environmental Engineering, Hong Kong Polytechnic University, Hong Kong 999077, China
4. State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, 73 Huanghe Road, Harbin 150090, China