Sadanand Pandey, PhD, is a professor in the School of Bioengineering and Food Technology, Faculty of Applied Sciences and Biotechnology, Shoolini University, India. He was a Kothari fellow at the prestigious Indian Institute of Science (2011–2013) and NRF scientist at the University of Johannesburg, South Africa (2014–2018). He has published more than 100 SCI Journal articles, many book chapters, and several contributions to scientific meetings and co-edited books. His research activities span the disciplines of polymer chemistry, materials science, nanotechnology, and sustainable and advanced materials. Elvis Fosso-Kankeu, PhD, is a professor in the Department of Metallurgy at the University of Johannesburg, South Africa. He has published more than 250 papers including journal articles, books, book chapters and conference proceeding papers. He has won several research awards including the National Science and Technology Forum Award in South Africa. His research focuses on the hydrometallurgical extraction of metal from solid phases, prediction of pollutants dispersion from industrial areas, and development of effective and sustainable methods for the removal of inorganic and organic pollutants from polluted water. Soumya Pandit, PhD, is a senior assistant professor at Sharda University, Greater Noida, Delhi, India. He pursued his doctoral studies from the Department of Biotechnology, Indian Institute of Technology, Kharagpur in 2015. He has authored more than 70 research and review papers in peer-reviewed journals, and his research areas include microbial electrochemical systems for bioenergy harvesting, bacterial biofilm and biofouling study, biohythane production, microalgal biomass production for biofuel, nanomaterial synthesis and application in bioenergy harvesting and biofouling mitigation.