Nitin Kumar Singh is an Associate Professor in the Department of Chemical Engineering at Marwadi University, Gujarat, India. He earned his PhD from Indian Institute of Technology Roorkee in Environmental Engineering, M. Tech. from Indian Institute of Technology Kharagpur in Environmental Engineering, and B. Tech from Institute of Engineering and Technology Lucknow in Chemical Engineering. He has more than 12 years of experience in the field of wastewater treatment, waste management, green synthesis and processes, cost-benefit analysis, biological air pollution monitoring, and sustainability assessment of environmental systems. As of now, he has published over 39 SCI articles, 16 book chapters, 12 papers in international conferences, and edited 2 international books with international publisher. Manish Yadav is a Manager in Central Mine Planning Design Institute Limited, a subsidiary of Coal India Limited, India. He did his master’s in environmental engineering and B. Tech. in Biotechnology. He has more than 10-year experience in mining industry, especially in environment division. He is NABET approved expert in Air Pollution (source apportionment study, air quality modelling, air quality assessment) and Water Pollution (Wastewater treatment, adsorption, ground water quality assessment). His core area of expertise is Environmental Impact Assessment. He has published more than 17 papers in reputed international journals along with 12 book chapters in reference books. He has also prepared many consultancies report on environmental problems. He is appreciably skilled in various data analysis and modelling software including AERMOD, Aquachem, Openair, R software, SPSS, Origin, ArcGIS, ArcSWAT and ERDAS etc. Komal Jayaswal is an Assistant Professor in the Department of Civil Engineering at GITAM University, Hyderabad. She completed her Ph.D. in Environmental Engineering from IIT Roorkee. She did her Master’s degree in Environmental engineering from NIT Allahabad and Bachelor’s degree in Biotechnology from SHIATS Allahabad. Her area of research includes energy efficient and nature-based technology for wastewater and water treatment systems, anaerobic wastewater treatment system and sludge characterization and solid waste management. She has 10 years of experience in the domain of environment waste management and wastewater treatment and has worked for both field scale and lab scale wastewater treatment technology. She has published 5 research articles, three book chapters and presented her work at international conferences. Namita Maharjan is an Assistant Professor in the department of General Education at National Institute of Technology, Nagaoka, Niigata, Japan. She did her PhD and M. Tech from National Institute of Technology, Nagaoka, Japan in Environmental engineering. Her area of research includes assessment of wastewater treatment systems, microbiology of wastewater treatment plants and aerobic post treatment system. She has more than 10 years of experience in the field of wastewater treatment system with expertise at laboratory and field scale. She has published more than 15 research articles, book chapters and presented her work at several international conferences.