1. Head of Civil Engineering Group, School of Science and the Environment, Coventry University, Priory Street, Coventry, CV1 5FB, UK
2. Head of Urban Water Technology Centre, University of Abertay Dundee, Bell Street, Dundee, DD1 1HG, UK
3. Researcher, Urban Water Technology Centre, University of Abertay Dundee, Bell Street, Dundee, DD1 1HG, UK
4. Professor, Department of Civil and Environmental Engineering, Imperial College of Science, Technology and Medicine, London SW7 2BU, UK