1 Department of Civil and Environmental Engineering, NIREAS-International Water Research Center, University of Cyprus, Cyprus. Electronic address: dfatta@ucy.ac.cy.
2 Department of Soil Chemistry, Plant Nutrition and Microbiology, Institute of Soil, Water and Environmental Sciences, The Volcani Center, Agricultural Research Organization, Rishon Lezion, Israel.
3 Future Industries Institute, University of South Australia, Australia.
4 Department of Civil Engineering, The University of Hong Kong, Hong Kong.