1. College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
2. Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin 541004, China
3. Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Areas, Guilin University of Technology, Guilin 541004, China
4. Modern Industry College of Ecology and Environmental Protection, Guilin University of Technology, Guilin 541004, China