Institution: | 1.School of Chemical and Metallurgical Engineering, University of the Witwatersrand, Johannesburg, South Africa ;2.Sustainable Process Engineering Unit, University of the Witwatersrand, Johannesburg, South Africa ;3.DST-NRF Centre of Excellence in Strong Materials, African Materials Science and Engineering Network, University of the Witwatersrand, Johannesburg, South Africa ;4.Industrial and Mining Water Research Unit (IMWaRU), University of the Witwatersrand, Johannesburg, South Africa ;5.Centre in Water Research and Development (CiWaRD), University of the Witwatersrand, Johannesburg, South Africa ;6.Department of Metallurgical and Materials Engineering, Federal University of Technology, Akure, Ondo State, PMB 704, Nigeria ; |