1. Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310032, P. R. China
2. Advanced Institute of Natural Sciences, Beijing Normal University at Zhuhai, Zhuhai 519087, P. R. China
3. Department of Environmental Science, Zhejiang University, Hangzhou 310058, P. R. China