Dr. Mihir Kumar Purkait is a Professor in the Department of Chemical Engineering at the Indian Institute of Technology Guwahati, Assam, India. His current research activities are focused in four distinct areas viz. i) advanced separation technologies, ii) waste to energy, iii) smart materials for various applications, and iv) process intensification. In each of the area, his goal is to synthesis stimuli responsive materials and to develop a more fundamental understanding of the factors governing the performance of the chemical and biochemical processes. He has more than 20 years of experience in academics and research and published more than 300 papers in different reputed journals (Citation: >16,500, h-index = 75, i-10 index = 193). He has 12 patents and completed 43 sponsored and consultancy projects from various funding agencies. Dr. Pranjal Pratim Das is a Technical Associate in the National Jal Jeevan Mission (NJJM) at the Ministry of Jal Shakti, Govt. of India. He has completed his PhD from the Department of Chemical Engineering, Indian Institute of Technology Guwahati, Assam, India. He received his M. Tech and B. Tech in Food Engineering and Technology from Tezpur (Central) University, Assam, India. His research work is purely dedicated to industrial wastewater treatment via electrochemical and advanced oxidation techniques. He has extensively worked on the application of hybrid ozone-electrocoagulation process to treat heavy metals and cyanide-contaminated effluents from different unit operations of steel industry. He has authored several scientific book publications, research/review articles and book chapters in various reputed international journals on water and wastewater treatment. He has fabricated and demonstrated many pilot plants for the green energy generations from wastewaters. He has worked extensively in various iron and steel making industrial wastewaters and has also delivered many pilot-scale set-ups to several water treatment facilities across the state of Assam, India for the treatment of toxic contaminated wastewaters. Dr. Mukesh Sharma is currently a Research Fellow at Department of Chemical Engineering, Indian Institute of Technology Guwahati (IITG), India. He obtained his M.Sc. and PhD in Earth Science and Technology from Indian Institute of Technology Kharagpur, West Bengal, India. His research work includes membrane technology and its applications in simultaneous sustainable energy extraction, electrochemistry, wastewater treatment, water treatment, bioelectrochemical process, desalination, waste management, resource recovery, fuel cells and formation of value-added products derived from agricultural wastes and processes intensification. He has published many scientific research and review papers in various reputed international journals. He has authored several book chapters in various publications, including Elsevier, CRC and Springer and patented technologies and its demonstrations on the field of blue energy generations.