1. College of Materials and Chemical Engineering, China Three Gorges University, Yichang, Hubei 443002, China
2. Engineering Research Center of Eco-Environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang, Hubei 443002, China
3. College of Hydraulic and Environmental Engineering, China Three Gorges University, Yichang, Hubei 443002, China