1 Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, NSW 2007, Australia. Electronic address: bingjieni@gmail.com.
2 Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, QLD 4102, Australia.
3 Water Cycle Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, South Korea.