1. School of Resources Environment and Materials Guangxi Key Laboratory of Processing for Non‐Ferrous Metals and Featured Materials Guangxi University Nanning 530004 P. R. China
2. School of Chemical and Environmental Engineering Shaoguan University Shaoguan 512005 P. R. China
3. College of Civil Engineering and Architecture Guangxi University Nanning 530004 P. R. China
4. School of Environment and Energy Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control South China University of Technology Guangzhou 510640 P. R. China
5. Guangxi Key Laboratory of Clean Pulp and Papermaking and Pollution Control Nanning 530004 P. R. China
6. College of Resource and Environment Engineering Guizhou University Guiyang 550025 P. R. China