1. College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China
2. Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China
3. Key Laboratory of the Three Gorges Reservoir Region’s Eco-Environment, Ministry of Education, College of Environment and Ecology, Chongqing University, Chongqing 400045, China
4. School of Metallurgy and Environment, Central South University, Changsha 410083, China
5. Chinese National Engineering Research Center for Control and Treatment of Heavy Metal Pollution, Changsha 410083, China