1. School of Applied Sciences, RMIT University, GPO Box 2476, Melbourne 3001, Victoria, Australia
2. Land and Water, CSIRO, PO Box 56, Highett 3190, Victoria, Australia
3. Water Quality Research Australia (Formally the CRC for Water Quality and Treatment), Private Mail Bag 3, Salisbury, South Australia 5108, Australia
4. School of Civil, Chemical and Environmental Engineering, RMIT University, GPO Box 2476, Melbourne 3001, Victoria, Australia