1. Research Assistant, State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal Univ., Beijing 100875, China.
2. Professor, MOE Key Laboratory of Regional Energy Systems Optimization, Resources and Environmental Research Academy, North China Electric Power Univ., Beijing 102206, China (corresponding author).
3. Professor and Canada Research Chair, Faculty of Engineering and Applied Science, Univ. of Regina, Regina, SK, Canada S4S 0A2.
4. Professor, State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal Univ., Beijing 100875, China.
5. Associate Professor, State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal Univ., Beijing 100875, China.