1. School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, P.R, China
2. State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization,kunming University of Science and Technology, Kunming, P.R, China
3. State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou, P.R, China
4. School of Environmental Science and Engineering, Tianjin University, Tianjin, P. R. China