1. School of Environment and Energy, South China University of Technology, Guangzhou 510006, P. R. China
2. School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, P. R. China
3. Baowu Group Guangdong Shaoguan Iron & Steel Co., Ltd., Guangdong 512123, Shaoguan, P. R. China
4. School of Environment and Energy, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangzhou 510006, P. R. China