Emerging Technologies and Biological Systems for Biogas Upgrading systematically summarizes the fundamental principles and the state-of-the-art of biogas cleaning and upgrading technologies, with special emphasis on biological processes for carbon dioxide (CO2), hydrogen sulfide (H2S), siloxane, and hydrocarbon removal. After analyzing the global scenario of biogas production, upgrading and utilization, this book discusses the integration of methanation processes to power-to-gas systems for methane (CH4) production and physiochemical upgrading technologies, such as chemical absorption, water scrubbing, pressure swing adsorption and the use of membranes. It then explores more recent and sustainable upgrading technologies, such as photosynthetic processes using algae, hydrogen-mediated microbial techniques, electrochemical, bioelectrochemical, and cryogenic approaches. H2S removal with biofilters is also covered, as well as removal of siloxanes through polymerization, peroxidation, biological degradation and gas-liquid absorption. The authors also thoroughly consider issues of mass transfer limitation in biomethanation from waste gas, biogas upgrading and life cycle assessment of upgrading technologies, techno-economic aspects, challenges for upscaling, and future trends.Providing specific information on biogas upgrading technology, and focusing on the most recent developments, Emerging Technologies and Biological Systems for Biogas Upgrading is a unique resource for researchers, engineers, and graduate students in the field of biogas production and utilization, including waste-to-energy and power-to-gas. It is also useful for entrepreneurs, consultants, and decision-makers in governmental agencies in the fields of sustainable energy, environmental protection, greenhouse gas emissions and climate change, and strategic planning. - Explores all major technologies for biogas upgrading through physiochemical, biological, and electrochemical processes - Discusses CO2, H2S, and siloxane removal techniques - Provides a systematical approach to discuss technologies, including challenges to gas–liquid mass transfer, life cycle assessment, technoeconomic implications, upscaling and systems integration

A comprehensive guide that offers a review of the current technologies that tackle CO2 emissions The race to reduce CO2 emissions continues to be an urgent global challenge. Engineering Solutions for CO2 Conversion offers a thorough guide to the most current technologies designed to mitigate CO2 emissions ranging from CO2 capture to CO2 utilization approaches. With contributions from an international panel representing a wide range of expertise, this book contains a multidisciplinary toolkit that covers the myriad aspects of CO2 conversion strategies. Comprehensive in scope, it explores the chemical, physical, engineering and economical facets of CO2 conversion. Engineering Solutions for CO2 Conversion explores a broad range of topics including linking CFD and process simulations, membranes technologies for efficient CO2 capture-conversion, biogas sweetening technologies, plasma-assisted conversion of CO2, and much more. This important resource: Addresses a pressing concern of global environmental damage, caused by the greenhouse gases emissions from fossil fuels Contains a review of the most current developments on the various aspects of CO2 capture and utilization strategies Incldues information on chemical, physical, engineering and economical facets of CO2 capture and utilization Offers in-depth insight into materials design, processing characterization, and computer modeling with respect to CO2 capture and conversion Written for catalytic chemists, electrochemists, process engineers, chemical engineers, chemists in industry, photochemists, environmental chemists, theoretical chemists, environmental officers, Engineering Solutions for CO2 Conversion provides the most current and expert information on the many aspects and challenges of CO2 conversion.

Sulfur is one of the most versatile elements in life. This book provides, for the first time, in-depth and integrated coverage of the functions of sulfur in phototrophic organisms including bacteria, plants and algae. It bridges gaps between biochemistry and cellular biology of sulfur in these organisms, and of biology and environments dominated by them. The book therefore provides a comprehensive overview of plant sulfur relations from genome to environment.

Sustainable Industrial Processes based on Microalgae addresses the current applications and potential uses of microalgae for processing waste and wastewater streams, along with potential applications of the produced biomass. Each chapter explores the different steps of the subject, from the importance of selecting a robust strain that is able to adapt to harsh and changing environmental conditions, to production and harvesting technologies, and end applications of the produce biomass, namely agriculture and feed production. It covers microalgae biology, common microalgal strains used for waste and wastewater treatment, cultivation strategies, novel extraction techniques, safety issues, and current market opportunities and challenges. Moreover, the book explores the potential utilization of the produced biomass focusing on industries that show higher potential such as agriculture and feed production. - Gives insights in sustainable, energy sufficient and economically-viable microalgae-based processes - Applies microalgal biomass to produce high value biopesticides, bio-stimulants and animal feeds/feed ingredients - Discusses current challenges such as the need for large surface areas and provides suggestions to overcome these challenges

In the quest to mitigate the buildup of greenhouse gases in Earth's atmosphere, researchers and policymakers have increasingly turned their attention to techniques for capturing greenhouse gases such as carbon dioxide and methane, either from the locations where they are emitted or directly from the atmosphere. Once captured, these gases can be stored or put to use. While both carbon storage and carbon utilization have costs, utilization offers the opportunity to recover some of the cost and even generate economic value. While current carbon utilization projects operate at a relatively small scale, some estimates suggest the market for waste carbon-derived products could grow to hundreds of billions of dollars within a few decades, utilizing several thousand teragrams of waste carbon gases per year. Gaseous Carbon Waste Streams Utilization: Status and Research Needs assesses research and development needs relevant to understanding and improving the commercial viability of waste carbon utilization technologies and defines a research agenda to address key challenges. The report is intended to help inform decision making surrounding the development and deployment of waste carbon utilization technologies under a variety of circumstances, whether motivated by a goal to improve processes for making carbon-based products, to generate revenue, or to achieve environmental goals.

Biogas to Biomethane: Engineering, Production, Sustainability addresses the technical, social and economic aspects of biogas upgradation to biomethane. With a focus on the latest advances, the book examines the challenges of biomethane production from technology to safety. Sections discuss the fundamentals of biomethane production, examine the latest technologies for biogas upgradation, provide step-by-step guidance on how to calculate and model mass, energy and emission flows from different process and technological configurations, address alternative and combined approaches to biogas upgradation, such as with mesophilic and thermophilic bacteria, consider the socio-economic implications of the biogas to biomethane production chain, and more. Additional sections discuss biosafety in relation to the technologies and processes discussed throughout the book and assess the sustainability of biomethane through lifecycle assessments and techno-economic and policy perspectives. This is an invaluable reference for researchers and industry engineers interested in biogas upgradation and the production of biomethane, and will be of interest to multidisciplinary teams working across Renewable Energy, Chemical Engineering, Environmental Science, and Sustainability Science. - Presents a comprehensive examination of the latest upgradation routes of biogas to biomethane - Provides step-by-step guidance on the modeling and simulation of biogas upgradation processes and technologies - Analyzes the sustainability of biomethane production techno-economically, socially and environmentally

This book presents the state of the art in biogas production using anaerobic digestion technology, with an emphasis on waste utilization/valorization. Offering a comprehensive reference guide to biogas production from different waste streams, it covers various aspects of anaerobic digestion technology from the basics, i.e., microbiological aspects to prominent parameters governing biogas production systems, as well as major principles of their operation, analysis, process control, and troubleshooting. Written and edited by internationally recognized experts in the field of biogas production from both academia and industry, it provides in-depth and cutting-edge information on central developments in the field. In addition, it discusses and reviews major issues affecting biogas production, including the type of feedstock, pretreatment techniques, production systems, design and fabrication of biogas plants, as well as biogas purification and upgrading technologies. ‘Biogas: Fundamentals, Process, and Operation’ also addresses the application of advanced environmental and energy evaluation tools including life cycle assessment (LCA), exergy, techno-economics, and modeling techniques. This book is intended for all researchers, practitioners and students who are interested in the current trends and future prospects of biogas production technologies.

Anaerobic digestion (AD) is one of the oldest biotechnological processes and originally referred to biomass degradation under anoxic conditions in both natural and engineered systems. It has been used for decades to treat various waste streams and to produce methane-rich biogas as an important energy carrier, and it has become a major player in electrical power production. AD is a popular, mature technology, and our knowledge about the influencing process parameters as well as about the diverse microbial communities involved in the process has increased dramatically over the last few decades. To avoid competition with food and feed production, the AD feedstock spectrum has constantly been extended to waste products either rich in recalcitrant lignocellulose or containing inhibitory substances such as ammonia, which requires application of various pre-treatments or specific management of the microbial resources. Extending the definition of AD, it can also convert gases rich in hydrogen and carbon dioxide into methane that can substitute natural gas, which opens new opportunities by a direct link to traditional petrochemistry. Furthermore, AD can be coupled with emerging biotechnological applications, such as microbial electrochemical technologies or the production of medium-chain fatty acids by anaerobic fermentation. Ultimately, because of the wide range of applications, AD is still a very vital field in science. This Special Issue highlights some key topics of this research field.

Written by a team of industry experts and edited by one of the most prolific and well-respected engineering authors in the industry, this exciting new volume covers the latest processes, equipment, and applications for clean biofuel production. With renewable and alternative energy sources becoming more and more important, and the growth in percentage of the overall energy used, biofuels production is more important than ever and is a huge part of taking up the slack in the transition from fossil fuels. This volume covers many of the newest state-of-the art processes, trends, and changes in the industry, combining information from many disciplines to deliver have-to-have solutions for the engineer or scientist’s daily problems. Whether in the plant or in the classroom, this exciting new volume is a must-have for any engineer, scientist, student, or other industry professional working in biofuel production. Audience Engineers, scientists, faculty and students, and industry professionals working in the biofuel industry.