Author: Manish Srivastava
Publisher: Springer Nature
ISBN: 9811618887
Category : Technology & Engineering
Languages : en
Pages : 173
Book Description
This volume is fifth part of the five-part set on bioenergy research. This edited volume provides sustainable solution for all existing roadblocks in commercial bioenergy production. The book focuses on different types of obstacles involved in various bioenergy operations with detail remedy of the issue in a sustainable way. In spite of having number of potential advantages, all available bioenergy options are still far from smooth practical applicability, due to which they are still in pipeline phase to replace the fossil fuels. This book brings together the integrative approach to the readers, to connect with more viable bioenergy type on commercial scale, the existing issues and the feasible approaches to eliminate the bottlenecks in the process. Further, the book also uncovers the untouched area of bioenergy production technology by bringing forth unconventional methods, processes and parameters, which have scope to enhance biofuel production technology by “Lab to Land” methods. The book highlights aspect which are less studied or are very new in their industrial application of bioenergy production. The book presents relevant reading material for global researchers, academic institutions, research students, teachers, scientist as well as industries. Other four volumes of this set explore basic concepts, latest progress, commercial opportunities and bio-waste to energy conversion.
Bioenergy Research: Integrative Solution for Existing Roadblock
Author: Manish Srivastava
Publisher: Springer Nature
ISBN: 9811618887
Category : Technology & Engineering
Languages : en
Pages : 173
Book Description
This volume is fifth part of the five-part set on bioenergy research. This edited volume provides sustainable solution for all existing roadblocks in commercial bioenergy production. The book focuses on different types of obstacles involved in various bioenergy operations with detail remedy of the issue in a sustainable way. In spite of having number of potential advantages, all available bioenergy options are still far from smooth practical applicability, due to which they are still in pipeline phase to replace the fossil fuels. This book brings together the integrative approach to the readers, to connect with more viable bioenergy type on commercial scale, the existing issues and the feasible approaches to eliminate the bottlenecks in the process. Further, the book also uncovers the untouched area of bioenergy production technology by bringing forth unconventional methods, processes and parameters, which have scope to enhance biofuel production technology by “Lab to Land” methods. The book highlights aspect which are less studied or are very new in their industrial application of bioenergy production. The book presents relevant reading material for global researchers, academic institutions, research students, teachers, scientist as well as industries. Other four volumes of this set explore basic concepts, latest progress, commercial opportunities and bio-waste to energy conversion.
Publisher: Springer Nature
ISBN: 9811618887
Category : Technology & Engineering
Languages : en
Pages : 173
Book Description
This volume is fifth part of the five-part set on bioenergy research. This edited volume provides sustainable solution for all existing roadblocks in commercial bioenergy production. The book focuses on different types of obstacles involved in various bioenergy operations with detail remedy of the issue in a sustainable way. In spite of having number of potential advantages, all available bioenergy options are still far from smooth practical applicability, due to which they are still in pipeline phase to replace the fossil fuels. This book brings together the integrative approach to the readers, to connect with more viable bioenergy type on commercial scale, the existing issues and the feasible approaches to eliminate the bottlenecks in the process. Further, the book also uncovers the untouched area of bioenergy production technology by bringing forth unconventional methods, processes and parameters, which have scope to enhance biofuel production technology by “Lab to Land” methods. The book highlights aspect which are less studied or are very new in their industrial application of bioenergy production. The book presents relevant reading material for global researchers, academic institutions, research students, teachers, scientist as well as industries. Other four volumes of this set explore basic concepts, latest progress, commercial opportunities and bio-waste to energy conversion.
Bioenergy Research: Integrative Solution for Existing Roadblock
Author: Manish Srivastava
Publisher: Springer
ISBN: 9789811618901
Category : Technology & Engineering
Languages : en
Pages : 0
Book Description
This volume is fifth part of the five-part set on bioenergy research. This edited volume provides sustainable solution for all existing roadblocks in commercial bioenergy production. The book focuses on different types of obstacles involved in various bioenergy operations with detail remedy of the issue in a sustainable way. In spite of having number of potential advantages, all available bioenergy options are still far from smooth practical applicability, due to which they are still in pipeline phase to replace the fossil fuels. This book brings together the integrative approach to the readers, to connect with more viable bioenergy type on commercial scale, the existing issues and the feasible approaches to eliminate the bottlenecks in the process. Further, the book also uncovers the untouched area of bioenergy production technology by bringing forth unconventional methods, processes and parameters, which have scope to enhance biofuel production technology by “Lab to Land” methods. The book highlights aspect which are less studied or are very new in their industrial application of bioenergy production. The book presents relevant reading material for global researchers, academic institutions, research students, teachers, scientist as well as industries. Other four volumes of this set explore basic concepts, latest progress, commercial opportunities and bio-waste to energy conversion.
Publisher: Springer
ISBN: 9789811618901
Category : Technology & Engineering
Languages : en
Pages : 0
Book Description
This volume is fifth part of the five-part set on bioenergy research. This edited volume provides sustainable solution for all existing roadblocks in commercial bioenergy production. The book focuses on different types of obstacles involved in various bioenergy operations with detail remedy of the issue in a sustainable way. In spite of having number of potential advantages, all available bioenergy options are still far from smooth practical applicability, due to which they are still in pipeline phase to replace the fossil fuels. This book brings together the integrative approach to the readers, to connect with more viable bioenergy type on commercial scale, the existing issues and the feasible approaches to eliminate the bottlenecks in the process. Further, the book also uncovers the untouched area of bioenergy production technology by bringing forth unconventional methods, processes and parameters, which have scope to enhance biofuel production technology by “Lab to Land” methods. The book highlights aspect which are less studied or are very new in their industrial application of bioenergy production. The book presents relevant reading material for global researchers, academic institutions, research students, teachers, scientist as well as industries. Other four volumes of this set explore basic concepts, latest progress, commercial opportunities and bio-waste to energy conversion.
Paddy Straw Waste for Biorefinery Applications
Author: Neha Srivastava
Publisher: Springer Nature
ISBN: 9819982243
Category : Science
Languages : en
Pages : 236
Book Description
This book provides an exclusive and critical in-depth analysis of paddy straw waste valorization at a broad scale for different industrial applications. It explores and discusses the various valorization pathways of paddy straw into valuable products connected to biorefineries' products and byproducts. The book also examines the scope, potential, and availability of paddy straw in the field of biorefineries. Various lignocellulosic biomasses with expanded potential are known for their industrial applications, even at a broad pilot range. Among these biomasses, paddy straw has emerged as the most suitable lignocellulosic waste for various biorefinery applications. Paddy is a crucial and widely consumed crop globally, and it generates the highest annual production of waste compared to other cereal crops. The cellulose content, accounting for approximately 47% of the total cellulosic biomass, offers significant potential for valorization, along with hemicellulose and lignin, which can also be explored and expanded on an industrial scale. However, despite the tremendous scope for valorization, lignocellulosic biomass-based biorefineries face cost-effectiveness challenges that need to be addressed for sustainable and uniform expansion, distribution, and economic scalability in various applications. The book's specific feature lies in its targeted and specific valorization of paddy straw into biofuels and other biorefinery-based products, which hold promising industrial applications and easily scalable approaches for mass production. This book is an essential resource for students, scientists, engineers and practitioners working in the biorefinery industry and academia.
Publisher: Springer Nature
ISBN: 9819982243
Category : Science
Languages : en
Pages : 236
Book Description
This book provides an exclusive and critical in-depth analysis of paddy straw waste valorization at a broad scale for different industrial applications. It explores and discusses the various valorization pathways of paddy straw into valuable products connected to biorefineries' products and byproducts. The book also examines the scope, potential, and availability of paddy straw in the field of biorefineries. Various lignocellulosic biomasses with expanded potential are known for their industrial applications, even at a broad pilot range. Among these biomasses, paddy straw has emerged as the most suitable lignocellulosic waste for various biorefinery applications. Paddy is a crucial and widely consumed crop globally, and it generates the highest annual production of waste compared to other cereal crops. The cellulose content, accounting for approximately 47% of the total cellulosic biomass, offers significant potential for valorization, along with hemicellulose and lignin, which can also be explored and expanded on an industrial scale. However, despite the tremendous scope for valorization, lignocellulosic biomass-based biorefineries face cost-effectiveness challenges that need to be addressed for sustainable and uniform expansion, distribution, and economic scalability in various applications. The book's specific feature lies in its targeted and specific valorization of paddy straw into biofuels and other biorefinery-based products, which hold promising industrial applications and easily scalable approaches for mass production. This book is an essential resource for students, scientists, engineers and practitioners working in the biorefinery industry and academia.
Fisheries Ecological Environment in South China Sea
Author: Changliang Ke
Publisher: Frontiers Media SA
ISBN: 283250115X
Category : Science
Languages : en
Pages : 184
Book Description
Publisher: Frontiers Media SA
ISBN: 283250115X
Category : Science
Languages : en
Pages : 184
Book Description
Two Billion Cars
Author: Daniel Sperling
Publisher: Oxford University Press
ISBN: 0199744017
Category : Business & Economics
Languages : en
Pages : 322
Book Description
Today there are over a billion vehicles in the world, and within twenty years, the number will double, largely a consequence of China's and India's explosive growth. Given that greenhouse gases are already creating havoc with our climate and that violent conflict in unstable oil-rich nations is on the rise, will matters only get worse? Or are there hopeful signs that effective, realistic solutions can be found? Blending a concise history of cars and their impact on the world, leading transportation experts Daniel Sperling and Deborah Gordon explain how we arrived at this state, and what we can do about it. Sperling and Gordon assign blame squarely where it belongs-on the auto-industry, short-sighted government policies, and consumers. They explore such solutions as getting beyond the gas-guzzler monoculture, re-inventing cars, searching for low-carbon fuels, and more. Promising advances in both transportation technology and fuel efficiency together with shifts in traveler behavior, they suggest, offer us a way out of our predicament. The authors conclude that the two places that have the most troublesome emissions problems--California and China--are the most likely to become world leaders on these issues. Arnold Schwarzenegger's enlightened embrace of eco-friendly fuel policies, which he discusses in the foreword, and China's forthright recognition that it needs far-reaching environmental and energy policies, suggest that if they can tackle the issue effectively and honestly, then there really is reason for hope. Updated with a new afterword that sheds light on the profound changes in the global economy in the last year, Two Billion Cars makes the case for why and how we need to transform transportation now more than ever. "Authoritatively prescriptive." --Tom Vanderbilt, Wilson Quarterly "Provocative and pleasurable, far-seeing and refreshing, fact-based and yet a page-turner, global in scope but rooted in real places. The authors make a convincing case that smart consumers driving smart electric-drive cars can find the critical path to a safer planet." --Robert Socolow, Princeton University "In this insightful and persuasive book, Sperling and Gordon highlight one of the biggest environmental challenges of this century: two billion cars. They rightly contend that we cannot avert the worst of global warming without making our cars cleaner and petroleum-free. Luckily the authors also offer a roadmap for navigating this problem that is both visionary and achievable." --Frances Beinecke, President, Natural Resources Defense Council
Publisher: Oxford University Press
ISBN: 0199744017
Category : Business & Economics
Languages : en
Pages : 322
Book Description
Today there are over a billion vehicles in the world, and within twenty years, the number will double, largely a consequence of China's and India's explosive growth. Given that greenhouse gases are already creating havoc with our climate and that violent conflict in unstable oil-rich nations is on the rise, will matters only get worse? Or are there hopeful signs that effective, realistic solutions can be found? Blending a concise history of cars and their impact on the world, leading transportation experts Daniel Sperling and Deborah Gordon explain how we arrived at this state, and what we can do about it. Sperling and Gordon assign blame squarely where it belongs-on the auto-industry, short-sighted government policies, and consumers. They explore such solutions as getting beyond the gas-guzzler monoculture, re-inventing cars, searching for low-carbon fuels, and more. Promising advances in both transportation technology and fuel efficiency together with shifts in traveler behavior, they suggest, offer us a way out of our predicament. The authors conclude that the two places that have the most troublesome emissions problems--California and China--are the most likely to become world leaders on these issues. Arnold Schwarzenegger's enlightened embrace of eco-friendly fuel policies, which he discusses in the foreword, and China's forthright recognition that it needs far-reaching environmental and energy policies, suggest that if they can tackle the issue effectively and honestly, then there really is reason for hope. Updated with a new afterword that sheds light on the profound changes in the global economy in the last year, Two Billion Cars makes the case for why and how we need to transform transportation now more than ever. "Authoritatively prescriptive." --Tom Vanderbilt, Wilson Quarterly "Provocative and pleasurable, far-seeing and refreshing, fact-based and yet a page-turner, global in scope but rooted in real places. The authors make a convincing case that smart consumers driving smart electric-drive cars can find the critical path to a safer planet." --Robert Socolow, Princeton University "In this insightful and persuasive book, Sperling and Gordon highlight one of the biggest environmental challenges of this century: two billion cars. They rightly contend that we cannot avert the worst of global warming without making our cars cleaner and petroleum-free. Luckily the authors also offer a roadmap for navigating this problem that is both visionary and achievable." --Frances Beinecke, President, Natural Resources Defense Council
Bioalcohol Production
Author: Keith W. Waldron
Publisher: Elsevier
ISBN: 1845699610
Category : Technology & Engineering
Languages : en
Pages : 497
Book Description
Bioethanol is one of the main biofuels currently used as a petroleum-substitute in transport applications. However, conflicts over food supply and land use have made its production and utilisation a controversial topic. Second generation bioalcohol production technology, based on (bio)chemical conversion of non-food lignocellulose, offers potential advantages over existing, energy-intensive bioethanol production processes. Food vs. fuel pressures may be reduced by utilising a wider range of lignocellulosic biomass feedstocks, including energy crops, cellulosic residues, and, particularly, wastes.Bioalcohol production covers the process engineering, technology, modelling and integration of the entire production chain for second generation bioalcohol production from lignocellulosic biomass. Primarily reviewing bioethanol production, the book's coverage extends to the production of longer-chain bioalcohols which will be elemental to the future of the industry.Part one reviews the key features and processes involved in the pretreatment and fractionation of lignocellulosic biomass for bioalcohol production, including hydrothermal and thermochemical pretreatment, and fractionation to separate out valuable process feedstocks. Part two covers the hydrolysis (saccharification) processes applicable to pretreated feedstocks. This includes both acid and enzymatic approaches and also importantly covers the development of particular enzymes to improve this conversion step. This coverage is extended in Part three, with chapters reviewing integrated hydrolysis and fermentation processes, and fermentation and co-fermentation challenges of lignocellulose-derived sugars, as well as separation and purification processes for bioalcohol extraction.Part four examines the analysis, monitoring and modelling approaches relating to process and quality control in the pretreatment, hydrolysis and fermentation steps of lignocellulose-to-bioalcohol production. Finally, Part five discusses the life-cycle assessment of lignocellulose-to-bioalcohol production, as well as the production of valuable chemicals and longer-chain alcohols from lignocellulosic biomass.With its distinguished international team of contributors, Bioalcohol production is a standard reference for fuel engineers, industrial chemists and biochemists, plant scientists and researchers in this area. - Provides an overview of the life-cycle assessment of lignocelluloses-to-bioalcohol production - Reviews the key features and processes involved in the pre-treatment and fractionation of lignocellulosic biomass for bioalcohol production - Examines the analysis, monitoring and modelling approaches relating to process and quality control in pre-treatment, hydrolysis and fermentation
Publisher: Elsevier
ISBN: 1845699610
Category : Technology & Engineering
Languages : en
Pages : 497
Book Description
Bioethanol is one of the main biofuels currently used as a petroleum-substitute in transport applications. However, conflicts over food supply and land use have made its production and utilisation a controversial topic. Second generation bioalcohol production technology, based on (bio)chemical conversion of non-food lignocellulose, offers potential advantages over existing, energy-intensive bioethanol production processes. Food vs. fuel pressures may be reduced by utilising a wider range of lignocellulosic biomass feedstocks, including energy crops, cellulosic residues, and, particularly, wastes.Bioalcohol production covers the process engineering, technology, modelling and integration of the entire production chain for second generation bioalcohol production from lignocellulosic biomass. Primarily reviewing bioethanol production, the book's coverage extends to the production of longer-chain bioalcohols which will be elemental to the future of the industry.Part one reviews the key features and processes involved in the pretreatment and fractionation of lignocellulosic biomass for bioalcohol production, including hydrothermal and thermochemical pretreatment, and fractionation to separate out valuable process feedstocks. Part two covers the hydrolysis (saccharification) processes applicable to pretreated feedstocks. This includes both acid and enzymatic approaches and also importantly covers the development of particular enzymes to improve this conversion step. This coverage is extended in Part three, with chapters reviewing integrated hydrolysis and fermentation processes, and fermentation and co-fermentation challenges of lignocellulose-derived sugars, as well as separation and purification processes for bioalcohol extraction.Part four examines the analysis, monitoring and modelling approaches relating to process and quality control in the pretreatment, hydrolysis and fermentation steps of lignocellulose-to-bioalcohol production. Finally, Part five discusses the life-cycle assessment of lignocellulose-to-bioalcohol production, as well as the production of valuable chemicals and longer-chain alcohols from lignocellulosic biomass.With its distinguished international team of contributors, Bioalcohol production is a standard reference for fuel engineers, industrial chemists and biochemists, plant scientists and researchers in this area. - Provides an overview of the life-cycle assessment of lignocelluloses-to-bioalcohol production - Reviews the key features and processes involved in the pre-treatment and fractionation of lignocellulosic biomass for bioalcohol production - Examines the analysis, monitoring and modelling approaches relating to process and quality control in pre-treatment, hydrolysis and fermentation
Biomass Gasification and Pyrolysis
Author: Prabir Basu
Publisher: Academic Press
ISBN: 0080961622
Category : Technology & Engineering
Languages : en
Pages : 377
Book Description
This book offers comprehensive coverage of the design, analysis, and operational aspects of biomass gasification, the key technology enabling the production of biofuels from all viable sources--some examples being sugar cane and switchgrass. This versatile resource not only explains the basic principles of energy conversion systems, but also provides valuable insight into the design of biomass gasifiers. The author provides many worked out design problems, step-by-step design procedures and real data on commercially operating systems. After fossil fuels, biomass is the most widely used fuel in the world. Biomass resources show a considerable potential in the long term if residues are properly handled and dedicated energy crops are grown. Includes step-by-step design procedures and case studies for Biomass GasificationProvides worked process flow diagrams for gasifier design. Covers integration with other technologies (e.g. gas turbine, engine, fuel cells)
Publisher: Academic Press
ISBN: 0080961622
Category : Technology & Engineering
Languages : en
Pages : 377
Book Description
This book offers comprehensive coverage of the design, analysis, and operational aspects of biomass gasification, the key technology enabling the production of biofuels from all viable sources--some examples being sugar cane and switchgrass. This versatile resource not only explains the basic principles of energy conversion systems, but also provides valuable insight into the design of biomass gasifiers. The author provides many worked out design problems, step-by-step design procedures and real data on commercially operating systems. After fossil fuels, biomass is the most widely used fuel in the world. Biomass resources show a considerable potential in the long term if residues are properly handled and dedicated energy crops are grown. Includes step-by-step design procedures and case studies for Biomass GasificationProvides worked process flow diagrams for gasifier design. Covers integration with other technologies (e.g. gas turbine, engine, fuel cells)
Waste to Wealth
Author: Reeta Rani Singhania
Publisher: Springer
ISBN: 9811074313
Category : Science
Languages : en
Pages : 525
Book Description
This book focuses on value addition to various waste streams, which include industrial waste, agricultural waste, and municipal solid and liquid waste. It addresses the utilization of waste to generate valuable products such as electricity, fuel, fertilizers, and chemicals, while placing special emphasis on environmental concerns and presenting a multidisciplinary approach for handling waste. Including chapters authored by prominent national and international experts, the book will be of interest to researchers, professionals and policymakers alike.
Publisher: Springer
ISBN: 9811074313
Category : Science
Languages : en
Pages : 525
Book Description
This book focuses on value addition to various waste streams, which include industrial waste, agricultural waste, and municipal solid and liquid waste. It addresses the utilization of waste to generate valuable products such as electricity, fuel, fertilizers, and chemicals, while placing special emphasis on environmental concerns and presenting a multidisciplinary approach for handling waste. Including chapters authored by prominent national and international experts, the book will be of interest to researchers, professionals and policymakers alike.
Sustainable Bioeconomy
Author: V. Venkatramanan
Publisher: Springer Nature
ISBN: 9811573212
Category : Science
Languages : en
Pages : 337
Book Description
Sustainable development is the most important challenge facing humanity in the 21st century. The global economic growth in the recent past has indeed exhibited marked progress in many countries. Nevertheless, the issues of income disparity, poverty, gender gaps, and malnutrition are not uncommon in the global landscape, in spite of the upward growth of the economy and technological advances. This grim picture is further exacerbated by our growing human population, unmindful resource use, ever-increasing consumption trends, and changing climate. In order to protect humanity and preserve the planet, the United Nations issued the “2030 agenda for sustainable development,” which includes but is not limited to sustainable production and consumption practices, e.g. in a sustainable bioeconomy. The hallmark of the sustainable bioeconomy is a paradigm shift from a fossil-fuel-based economy to a biological-based one, which is driven by the virtues of sustainability, efficient utilization of resources, and “circular economy.” As the sustainable bioeconomy is based on the efficient utilization of biological resources and societal transformations, it holds the immense potential to achieve the UN’s Sustainable Development Goals. This book shares valuable insights into the linkages between the sustainable bioeconomy and Sustainable Development Goals, making it an essential read for policymakers, researchers and students of environmental studies.
Publisher: Springer Nature
ISBN: 9811573212
Category : Science
Languages : en
Pages : 337
Book Description
Sustainable development is the most important challenge facing humanity in the 21st century. The global economic growth in the recent past has indeed exhibited marked progress in many countries. Nevertheless, the issues of income disparity, poverty, gender gaps, and malnutrition are not uncommon in the global landscape, in spite of the upward growth of the economy and technological advances. This grim picture is further exacerbated by our growing human population, unmindful resource use, ever-increasing consumption trends, and changing climate. In order to protect humanity and preserve the planet, the United Nations issued the “2030 agenda for sustainable development,” which includes but is not limited to sustainable production and consumption practices, e.g. in a sustainable bioeconomy. The hallmark of the sustainable bioeconomy is a paradigm shift from a fossil-fuel-based economy to a biological-based one, which is driven by the virtues of sustainability, efficient utilization of resources, and “circular economy.” As the sustainable bioeconomy is based on the efficient utilization of biological resources and societal transformations, it holds the immense potential to achieve the UN’s Sustainable Development Goals. This book shares valuable insights into the linkages between the sustainable bioeconomy and Sustainable Development Goals, making it an essential read for policymakers, researchers and students of environmental studies.
Hydrogen Production Technologies
Author: Mehmet Sankir
Publisher: John Wiley & Sons
ISBN: 1119283655
Category : Science
Languages : en
Pages : 653
Book Description
Provides a comprehensive practical review of the new technologies used to obtain hydrogen more efficiently via catalytic, electrochemical, bio- and photohydrogen production. Hydrogen has been gaining more attention in both transportation and stationary power applications. Fuel cell-powered cars are on the roads and the automotive industry is demanding feasible and efficient technologies to produce hydrogen. The principles and methods described herein lead to reasonable mitigation of the great majority of problems associated with hydrogen production technologies. The chapters in this book are written by distinguished authors who have extensive experience in their fields, and readers will have a chance to compare the fundamental production techniques and learn about the pros and cons of these technologies. The book is organized into three parts. Part I shows the catalytic and electrochemical principles involved in hydrogen production technologies. Part II addresses hydrogen production from electrochemically active bacteria (EAB) by decomposing organic compound into hydrogen in microbial electrolysis cells (MECs). The final part of the book is concerned with photohydrogen generation. Recent developments in the area of semiconductor-based nanomaterials, specifically semiconductor oxides, nitrides and metal free semiconductor-based nanomaterials for photocatalytic hydrogen production are extensively discussed.
Publisher: John Wiley & Sons
ISBN: 1119283655
Category : Science
Languages : en
Pages : 653
Book Description
Provides a comprehensive practical review of the new technologies used to obtain hydrogen more efficiently via catalytic, electrochemical, bio- and photohydrogen production. Hydrogen has been gaining more attention in both transportation and stationary power applications. Fuel cell-powered cars are on the roads and the automotive industry is demanding feasible and efficient technologies to produce hydrogen. The principles and methods described herein lead to reasonable mitigation of the great majority of problems associated with hydrogen production technologies. The chapters in this book are written by distinguished authors who have extensive experience in their fields, and readers will have a chance to compare the fundamental production techniques and learn about the pros and cons of these technologies. The book is organized into three parts. Part I shows the catalytic and electrochemical principles involved in hydrogen production technologies. Part II addresses hydrogen production from electrochemically active bacteria (EAB) by decomposing organic compound into hydrogen in microbial electrolysis cells (MECs). The final part of the book is concerned with photohydrogen generation. Recent developments in the area of semiconductor-based nanomaterials, specifically semiconductor oxides, nitrides and metal free semiconductor-based nanomaterials for photocatalytic hydrogen production are extensively discussed.