Lakhveer Singh is an Associate Professor at the Department of Chemistry, Sardar Patel University, Mandi, Himachal Pradesh-175001, India. Earlier, he worked as an Associate Professor at SRM University-AP and University Malaysia Pahang, Malaysia and as post-doctoral researcher at Oregon State University, Corvallis, USA. His major areas of research expertise are Energy Production, Bioelectrochemical Systems, Wastewater Treatment, and Nanomaterial Synthesis for Sustainable Applications. He is enlisted in the world top 2% scientists list released in 2021 by Stanford University in the field of energy and environment. Dr. Abu Yousuf is a Research Associate in the School of Aerospace and Mechanical Engineering, University of Oklahoma, in the United States. He holds a PhD in Chemical Engineering from the University of Naples Federico II, Italy. His primary research interests include renewable energy, biorefinery, energy storage and waste-to-energy, and he is currently working with protonic ceramic fuel cells at the University of Oklahoma. Dr. Yousuf has published over 65 papers in reputed ISI and Scopus-indexed journals, 19 conference papers and 15 book chapters, and is the Editor of 5 books, as well as serving as an editorial board member for several reputed journals. He received the Dean’s Award from Shahjalal University of Science and Technology, Bangladesh, in 2019 and 2021, for his research, and won the ‘International invention of the year award’ at the British Invention Show, London, UK in 2017, for his work on Hybrid Energy Generation for Highway Lighting Systems.Durga Madhab Mahapatra is an Assistant Professor (Selection Grade) at the Department of Chemical Engineering, Energy Cluster, School of Advanced Engineering, University of Petroleum and Energy Studies (UPES), Dehradun, India. Before joining UPES, he was with the Department of Biological and Ecological Engineering (BEE), School of Engineering (SoE), Oregon State University (OSU), Corvallis, OR, USA from 2016 onwards as a Postdoctoral Fellow, Teaching staff, and Affiliate. He completed his Doctoral studies in Bioprocess Engineering, from the Indian Institute of Science (IISc), Bangalore in 2015 from the Faculty of Engineering with a Gold Medal. His major areas of interest are Sustainable Bioprocess Development, Bioenergy and Bioresources, Wastewater Metagenomics, Wastewater Treatment and Waste Biorefinery, and Nano-biotechnological Applications in Agricultural, and Environmental Research.

• 1. Bioreactors: Concepts and Fundamentals2. Bioreactors Variants and Utilities for Bioenergy3. Advancement in Bioreactors for Biofuels4. Modelling and Simulation5. Bioreactors in industrial practices6. Techno economics, Sustainability and Environmental impacts of bioreactor

Lakhveer Singh is an Associate Professor at the Department of Chemistry, Sardar Patel University, Mandi, Himachal Pradesh-175001, India. Earlier, he worked as an Associate Professor at SRM University-AP and University Malaysia Pahang, Malaysia and as post-doctoral researcher at Oregon State University, Corvallis, USA. His major areas of research expertise are Energy Production, Bioelectrochemical Systems, Wastewater Treatment, and Nanomaterial Synthesis for Sustainable Applications. He is enlisted in the world top 2% scientists list released in 2021 by Stanford University in the field of energy and environment. Dr. Abu Yousuf is a Research Associate in the School of Aerospace and Mechanical Engineering, University of Oklahoma, in the United States. He holds a PhD in Chemical Engineering from the University of Naples Federico II, Italy. His primary research interests include renewable energy, biorefinery, energy storage and waste-to-energy, and he is currently working with protonic ceramic fuel cells at the University of Oklahoma. Dr. Yousuf has published over 65 papers in reputed ISI and Scopus-indexed journals, 19 conference papers and 15 book chapters, and is the Editor of 5 books, as well as serving as an editorial board member for several reputed journals. He received the Dean’s Award from Shahjalal University of Science and Technology, Bangladesh, in 2019 and 2021, for his research, and won the ‘International invention of the year award’ at the British Invention Show, London, UK in 2017, for his work on Hybrid Energy Generation for Highway Lighting Systems.Durga Madhab Mahapatra is an Assistant Professor (Selection Grade) at the Department of Chemical Engineering, Energy Cluster, School of Advanced Engineering, University of Petroleum and Energy Studies (UPES), Dehradun, India. Before joining UPES, he was with the Department of Biological and Ecological Engineering (BEE), School of Engineering (SoE), Oregon State University (OSU), Corvallis, OR, USA from 2016 onwards as a Postdoctoral Fellow, Teaching staff, and Affiliate. He completed his Doctoral studies in Bioprocess Engineering, from the Indian Institute of Science (IISc), Bangalore in 2015 from the Faculty of Engineering with a Gold Medal. His major areas of interest are Sustainable Bioprocess Development, Bioenergy and Bioresources, Wastewater Metagenomics, Wastewater Treatment and Waste Biorefinery, and Nano-biotechnological Applications in Agricultural, and Environmental Research.

• 1. Bioreactors: Concepts and Fundamentals2. Bioreactors Variants and Utilities for Bioenergy3. Advancement in Bioreactors for Biofuels4. Modelling and Simulation5. Bioreactors in industrial practices6. Techno economics, Sustainability and Environmental impacts of bioreactor

Lakhveer Singh is an Associate Professor at the Department of Chemistry, Sardar Patel University, Mandi, Himachal Pradesh-175001, India. Earlier, he worked as an Associate Professor at SRM University-AP and University Malaysia Pahang, Malaysia and as post-doctoral researcher at Oregon State University, Corvallis, USA. His major areas of research expertise are Energy Production, Bioelectrochemical Systems, Wastewater Treatment, and Nanomaterial Synthesis for Sustainable Applications. He is enlisted in the world top 2% scientists list released in 2021 by Stanford University in the field of energy and environment. Dr. Abu Yousuf is a Research Associate in the School of Aerospace and Mechanical Engineering, University of Oklahoma, in the United States. He holds a PhD in Chemical Engineering from the University of Naples Federico II, Italy. His primary research interests include renewable energy, biorefinery, energy storage and waste-to-energy, and he is currently working with protonic ceramic fuel cells at the University of Oklahoma. Dr. Yousuf has published over 65 papers in reputed ISI and Scopus-indexed journals, 19 conference papers and 15 book chapters, and is the Editor of 5 books, as well as serving as an editorial board member for several reputed journals. He received the Dean’s Award from Shahjalal University of Science and Technology, Bangladesh, in 2019 and 2021, for his research, and won the ‘International invention of the year award’ at the British Invention Show, London, UK in 2017, for his work on Hybrid Energy Generation for Highway Lighting Systems.Durga Madhab Mahapatra is an Assistant Professor (Selection Grade) at the Department of Chemical Engineering, Energy Cluster, School of Advanced Engineering, University of Petroleum and Energy Studies (UPES), Dehradun, India. Before joining UPES, he was with the Department of Biological and Ecological Engineering (BEE), School of Engineering (SoE), Oregon State University (OSU), Corvallis, OR, USA from 2016 onwards as a Postdoctoral Fellow, Teaching staff, and Affiliate. He completed his Doctoral studies in Bioprocess Engineering, from the Indian Institute of Science (IISc), Bangalore in 2015 from the Faculty of Engineering with a Gold Medal. His major areas of interest are Sustainable Bioprocess Development, Bioenergy and Bioresources, Wastewater Metagenomics, Wastewater Treatment and Waste Biorefinery, and Nano-biotechnological Applications in Agricultural, and Environmental Research.

• 1. Bioreactors: Concepts and Fundamentals2. Bioreactors Variants and Utilities for Bioenergy3. Advancement in Bioreactors for Biofuels4. Modelling and Simulation5. Bioreactors in industrial practices6. Techno economics, Sustainability and Environmental impacts of bioreactor