Elvis Fosso-Kankeu, PhD, is a professor in the Department of Metallurgy, Faculty of Engineering and Built Environment, University of Johannesburg, Doornfontein, Johannesburg, South Africa. His research focuses on the hydrometallurgical extraction of metal from solid phases, the prediction of pollutant dispersion from industrial areas, and the development of effective and sustainable methods for the removal of inorganic and organic pollutants from polluted water. He has published more than 220 papers including journal articles, books, book chapters, and conference proceedings papers. He has won several research awards including the NSTF Award (National Science and Technology Forum: largest science, engineering, technology, and innovation awards in South Africa and are known as the “Science Oscars” of recent times) Engineering Research Capacity Development, in 2019. Bhekie Mamba, PhD, is the executive dean of the College of Science, Engineering, and Technology, the University of South Africa. Prof Mamba i
