1. Guangzhou HKUST Fok Ying Tung Research Institute Guangzhou China
2. School of Energy and Civil Engineering Harbin University of Commerce Harbin China
3. College of Forestry Northeast Forestry University Harbin China
4. State Key Laboratory of Urban Water Resource and Environment Harbin Institute of Technology Harbin Heilongjiang Province China
5. Department of Engineering and Technical Services DC Water and Sewer Authority Washington District of Columbia USA