He is currently working in Civil Engineering Department, Jazan University, Saudi Arabia. He has more than 11 years of teaching and research experience. He has >60 peer-reviewed publications, 1 book (edited), 6 patents and 5 book chapters to his credit. He is a guest Editor in ‘Frontiers in Environmental Chemistry, and ‘Frontiers in Sustainability. He is a reviewer in reputed journals such as Journal of Molecular Liquids, Chemosphere, Journal of Water Processing Engineering, Waste Management, Separation and Purification Technology, etc. His work on Advanced Oxidation Process was published in Journal of Cleaner Production, Journal of Water Process Engineering and Trends in Analytical Chemistry. Dr. Nadeem A Khan is currently working as an assistant professor in the Department of Civil Engineering at Mewat Engineering College, in India. Previously he was Head of Department from 2014 to 2017. He completed his Ph.D. from Jamia Millia Islamia University in 2022. He received his M.Tech. (Civil Engineering) with honours in Environmental Engineering from Aligarh Muslim University, India in 2011. He has acted as an editorial board member for Nature on Scientific Reports and worked with Springer on a special issue in the Discover Water Journal. He was awarded the Best Young Scientist Award (Male) by LWT India and GECL for his Scientific contribution to Environmental Engineering. He has published four books with international publishers, 64 papers in SCI journals, and has also published more than 10 PATENTS in civil Engineering and water treatment. Dr. Mu. Naushad is working as a full professor in the Department of Chemistry, College of Science at King Saud University, Riyadh, Saudi Arabia. His research interests include wastewater treatment, adsorption, ion exchange, bioremediation, and photodegradation. Dr. Naushad is the author and coauthor of more than 500 refereed journal publications and several books, book chapters, and US patents. Hamidi Abdul Aziz is a Professor in Environmental Engineering in the School of Civil Engineering of Universiti Sains Malaysia. Professor Aziz received his PhD degree in civil engineering (Environmental Engineering) from the University of Strathclyde in Scotland in 1992. He is a guest editor of the special issue on landfill leachate management and control of the International Journal of Environment and Waste Management (IJEWM). Professor Aziz currently serves as the Editor-in-chief of the International Journal of Scientific Research in Environmental Sciences (IJSRES). He also serves as the Managing Editor of the International Journal of Environment and Waste Management, IJEWM and the International of Journal of Environmental Engineering, IJEE. Professor Aziz's research focuses on alleviating problems associated with water pollution issues from industrial wastewater discharges and from solid waste management via landfilling, such as landfill leachate. Advanced oxidation processes is also one of his research focuses. In addition, he has strong interest in biodegradation and bioremediation of oil spills