1. Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
2. Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Institute of Environmental Research at Greater Bay, Guangzhou University, Guangzhou 510006, China
3. Institute of Rural Revitalization, Guangzhou University, Guangzhou 510006, China
4. Environmental Systems Engineering Program, University of Regina, Regina, Saskatchewan S4S 0A2, Canada