1 Environmental Engineering, University of Wollongong, NSW 2522, Australia 2 Laboratory of Membrane Technology and Technical Polymer Chemistry, Lappeenranta University of Technology, P.O.Box 20, F IN 53851, Lappeeranta, Finland 3 UNESCO Centre for Membrane Science and Technology, Chemical Engineering, University of New South Wales, Sydney, NSW 2052, Australia 4 Civil and Environmental Engineeri...