UNESCO Centre for Membrane Science and Technology, School of Chemical Engineering, The University of New South Wales, Sydney 2052, Australia

Particle and Interfacial Technology Group, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Gent, Belgium

Delft University of Technology, Faculty of Civil Engineering and Geosciences, Department of Sanitary Engineering, P.O. Box 5048, 2600 GA Delft, The Netherlands

Environmental Science and Engineering Division, Colorado School of Mines, Golden, CO 80401-1887, USA

School of Civil Mining and Environmental Engineering, The University of Wollongong, Wollongong, NSW 2522, Australia

Water Research Centre, The University of New South Wales, Sydney 2052, Australia

Water Research Centre, The University of New South Wales, Sydney 2052, Australia

UNESCO Centre for Membrane Science and Technology, School of Chemical Engineering, The University of New South Wales, Sydney 2052, Australia