Affiliation: | 1.Department of Ecology and Resource Management, University of Venda, Private Bag X5050, Thohoyandou, 0950, South Africa ;2.Department of Hydrology and Water Resources, University of Venda, Private Bag X5050, Thohoyandou, 0950, South Africa ;3.Institute for Nanotechnology and Water Sustainability (iNanoWS), College of Science, Engineering and Technology (CSET), University of South Africa, P.O. Box 392, Roodepoort, Johannesburg, 1709, South Africa ;4.Department of Chemistry, University of Venda, Private Bag X5050, Thohoyandou, 0950, South Africa ;5.Department of Environmental Sciences, University of South Africa, P.O. Box 392, Roodepoort, Johannesburg, 1709, South Africa ;6.Institute of Development, Energy for Africa Sustainability (IDEAS), College of Science, Engineering and Technology (CSET), University of South Africa, P.O. Box 392, Roodepoort, Johannesburg, 1709, South Africa ;7.Vaal University of Technology, Private Bag X021, Vanderbijlpark, 1911, South Africa ; |