1 Faculty of Environmental Sciences, University of Science, Vietnam National University, Hanoi, Vietnam. nguyenmanhkhai@hus.edu.vn.
2 Faculty of Environmental Engineering, Hanoi University of Civil Engineering, Hanoi, Vietnam.
3 School of Environmental Science and Technology, Hanoi University of Science and Technology, Hanoi, Vietnam.
4 Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, Faculty of Engineering and Information Technology, University of Technology Sydney, Sydney, Australia.