Waste materials in the solid form tend to be bulky and difficult to handle and transport. Its management could happen through physical, thermal, chemical or biological processing stages, with the exact sequence of and their operational optima being decided by the waste composition. In recent years, energy crisis and increased waste production have been undoubtedly major issues of concern. As we mentioned in the previous volume of this book, defining waste is crucial in terms of identifying the most adequate approach to recycle or recover resources from the waste. Various chemical, biochemical, and biological approaches are being investigated widely by researchers for waste valorization. Volume 2 of this book brings together the leading researchers working on solid waste management using biological and biochemical approaches.

Dr. Surajbhan Sevda completed his doctoral degree in 2013 from Indian Institute of Technology Delhi, India. He is currently working as an Assistant Professor at the Department of Biotechnology, National Institute of Technology Warangal, India. Prior to this, he was a technical officer (research scientist) at IIT Guwahati, India. He has published more than 40 articles in scientific journals and 32 book chapters. His research experience lies in industrial wastewater treatment, biofuels and bioenergy, life cycle analysis, metal recovery, biosensor development, green chemistry, and microbial electrosynthesis.

Dr. Garima Chauhan is an experienced professional in the field of waste management, renewable energy, and heavy oil upgrading. She holds a PhD degree in chemical engineering from Indian Institute of Technology Delhi, India and is currently working at the Department of Chemical and Materials Engineering, University of Alberta, Canada. She has authored a book, several book chapters, and 30+ research articles in peer-reviewed journals. Passionate about skill attainment and continuous learning, Dr. Chauhan has been a member of several editorial boards, as well as a recognized reviewer in peer-reviewed journals and professional development campaigns.