1. School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, Xi’an 710049, China
2. Department of Civil and Environmental Engineering, National University of Singapore, Singapore 117576, Singapore
3. Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia
4. School of Ecology and Environment, Beijing Technology and Business University, Beijing 100048, China
5. Southern Branch of China National Gold Engineering Corporation, Guangzhou 440112, China