1. Master of Engineering, College of Environmental Science and Engineering, Dalian Maritime Univ., 204, Xishan Campus, Ganjingzi District, Dalian, Liaoning Province 116026, China.
2. Professor, College of Environmental Science and Engineering, Dalian Maritime Univ., 204, Xishan Campus, Ganjingzi District, Dalian, Liaoning Province 116026, China; Professor, State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China (corresponding author).