1. Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering; Nankai University; Tianjin; 300071; China
2. Department of Molecular Genetics, Biochemistry and Microbiology; University of Cincinnati College of Medicine; Cincinnati; OH; 45267; USA
3. Department of Chemical and Biomolecular Engineering; Ohio University; Athens; OH; 45701; USA