Sughosh Madhav is an Assistant Professor at Shaheed Bhagat Singh College, University of Delhi, India, and he holds a PhD from the Jawaharlal Nehru University, New Delhi, India, where he studied the environmental impact of textile effluents on groundwater and soil quality. His current research interests include hydrogeochemistry, water pollution and wastewater remediation. Dr Madhav has published 30+ articles, book chapters and edited 5 books on different environmental issues. Mohd. Aamir Mazhar is an Assistant Professor in the Department of Civil Engineering, Jamia Millia Islamia, New Delhi, India. He holds a PhD in Environmentla Engineering, where he devoted his attention to disinfection byproducts. His current areas of interst include water and wastewater treatment, public health engineering, solid waste management, and environmental sustainability. Sirajuddin Ahmed is a Professor in the Department of Civil Engineering, Jamia Millia Islamia, New Delhi, India. He obtained his PhD from the University of Wales (U.K.). His research interests include wastewater treatment, constructed wetlands and other wastewater treatment technologies, reuse and recycling of wastewater and sustainable development. He has published 100+ research articles, edited two books and has also six patents in these fields. Pramod Kumar is a Professor in the Department of Chemistry, University of Delhi, New Delhi, India. With 25+ years of experience in teaching chemistry and research, his interests focus on environmental chemistry and environmental pollution. He has also worked in the field of material chemistry and organic chemistry. Pradeep Kumar Mishra is a Professor in the Department of Chemical Engineering, Indian Institute of Technology (BHU), Varanasi, India, and currently Vice-Chancellor of Dr A P J Abul KalamTechnical University, Uttar Pradesh, India. Professor Mishra has 30+ years of experience in leading, supervising and undertaking research in the broader field of Environmental Engineering and Science with a focus on Wastewater Treatment (Bioremediation; Adsorption), water pollution, Bio-energy, Nanomaterials, Membrane Separation Processes; and Biomaterials. He has published 80+ research articles and book chapters and edited more than 15 books in these fields. He is also editing a book series on Clean Energy Production Technologies, Springer Nature.