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Comparative Process Stability And Efficiency Of Mesophilic And Thermophilic Anaerobic Digestion
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Book Synopsis Comparative Process Stability and Efficiency of Mesophilic and Thermophilic Anaerobic Digestion by : Moonil Kim
Download or read book Comparative Process Stability and Efficiency of Mesophilic and Thermophilic Anaerobic Digestion written by Moonil Kim and published by . This book was released on 2001 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Pathogen Destruction Efficiency In High Temperature Digestion by : Donald M. D. Gray (Gabb)
Download or read book Pathogen Destruction Efficiency In High Temperature Digestion written by Donald M. D. Gray (Gabb) and published by IWA Publishing. This book was released on 2004-01-01 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this research was to evaluate and compare various thermophilic anaerobic digestion processes for meeting U.S. EPA biosolids Class A pathogen standards. The project was split into three phases. Phase 1 screened three bench-scale thermophilic anaerobic process configurations at three different thermophilic temperatures based on their fecal coliform destruction efficiency. All three of the thermophilic process configurations tested were capable of achieving the Class A fecal coliform standard and were included in Phase 2. In Phase 2, bench-scale anaerobic digesters were fed primary sludge seeded with E.coli, helminth ova, poliovirus, and Salmonella to evaluate pathogen destruction. Two process configurations, the thermophilic single-stage and the two-stage mesophilic acid-phase/thermophilic methane-phase system, met Class A requirements at 50oC. In Phase 3, the single-stage thermophilic anaerobic digestion process was compared to the single-stage mesophilic process at full scale (1.5-MG digesters) based on fecal coliform and pathogen destruction, process performance, digested sludge dewaterability, and odor generation. Pathogen destruction and process performance comparisons of the various process configurations are presented for each phase of the study. Based on the fecal coliform data presented here, an empirical model was developed for quantitatively comparing multiple stage and single-stage thermophilic anaerobic digester performance. The model demonstrates that various combinations of thermophilic temperatures, staging, and residence times can achieve the Class A fecal coliform requirement. This study also suggests that anaerobic digesters operating in the lower thermophilic temperature range (approximately 50?C) are not only capable of achieving Class A requirements but may also produce digested sludges with less odor and lower volatile solids than digesters operating at higher thermophilic temperatures.
Book Synopsis BioEnergy and BioChemicals Production from Biomass and Residual Resources by : Dimitar Karakashev
Download or read book BioEnergy and BioChemicals Production from Biomass and Residual Resources written by Dimitar Karakashev and published by MDPI. This book was released on 2019-02-18 with total page 381 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "BioEnergy and BioChemicals Production from Biomass and Residual Resources" that was published in Energies
Book Synopsis A Comparison of the Performance and Kinetics of Thermophilic and Mesophilic Anaerobic Digestion by : Gregory Michael Moen
Download or read book A Comparison of the Performance and Kinetics of Thermophilic and Mesophilic Anaerobic Digestion written by Gregory Michael Moen and published by . This book was released on 2000 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis New Trends in Environmental Engineering, Agriculture, Food Production, and Analysis by : Wojciech Janczukowicz
Download or read book New Trends in Environmental Engineering, Agriculture, Food Production, and Analysis written by Wojciech Janczukowicz and published by MDPI. This book was released on 2021-09-02 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Special Issue presents the latest advances in agriculture, aquaculture, food technology and environmental protection and engineering, discussing, among others, the following issues: new technologies in water, stormwater and wastewater treatment; water saving, lake restoration; new sludge and waste management systems; biodiesel production from animal fat waste; the microbiological quality of compound fish feeds for aquaculture; the role of technological processes to improve food quality and safety; new trends in the analysis of food and food components including in vitro, in vivo, and in silico analyses; and functional and structural aspects of bioactivities of food molecules.
Book Synopsis Anaerobic Co-Digestion of Lignocellulosic Waste by : Luis Isidoro Romero García
Download or read book Anaerobic Co-Digestion of Lignocellulosic Waste written by Luis Isidoro Romero García and published by MDPI. This book was released on 2021-09-02 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Some terms, such as eco-friendly, circular economy and green technologies, have remained in our vocabulary, because the truth is that mankind is altering the planet to put its own subsistence at risk. Besides, for rationalization in the consumption of raw materials and energy, the recycling of waste through efficient and sustainable processes forms the backbone of the paradigm of a sustainable industry. One of the most relevant technologies for the new productive model is anaerobic digestion. Historically, anaerobic digestion has been developed in the field of urban wastes and wastewater treatments, but in the new challenge, its role is more relevant. Anaerobic digestion is a technologically mature biological treatment, which joins bioenergy production with the efficient removal of contaminants. This issue provides a specialized, but broad in scope, overview of the possibilities of the anaerobic digestion of lignocellulosic biomass (mainly forestry and agricultural wastes), which is expected to be a more promising substrate for the development of biorefineries. Its conversion to bioenergy through anaerobic digestion must solve some troubles: the complex lignocellulosic structure needs to be deconstructed by pretreatments and a co-substrate may need to be added to improve the biological process. Ten selected works advance this proposal into the future.
Book Synopsis Current Advances in Anaerobic Digestion Technology by : Marcell Nikolausz
Download or read book Current Advances in Anaerobic Digestion Technology written by Marcell Nikolausz and published by MDPI. This book was released on 2021-03-17 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Microbial Fuels by : Farshad Darvishi Harzevili
Download or read book Microbial Fuels written by Farshad Darvishi Harzevili and published by CRC Press. This book was released on 2017-09-18 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book will highlight major trends and developments in the field of microbial fuels, with contributions from a number of highly experienced researchers. It will serve as a comprehensive reference for industrial stakeholders, scientists, researchers and graduate students interested in microbial fuels. The aims of this work are to present the technologies and perspectives taking into account different socio-economical contexts. A specific chapter will focus on the general perspectives of microbial fuels for low-income and emerging countries.
Book Synopsis Influence of temperature and feeding mode on digestion and sanitation efficiency during multiple-stage anaerobic treatment of liquid dairy cattle manure by : Mathias Effenberger
Download or read book Influence of temperature and feeding mode on digestion and sanitation efficiency during multiple-stage anaerobic treatment of liquid dairy cattle manure written by Mathias Effenberger and published by Cuvillier Verlag. This book was released on 2008-07-25 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work deals with the evaluation of the performance of a multiple-stage anaerobic digestion process with respect to the degradation of organic matter and the inactivation of pathogenic and indicator organisms in liquid dairy cattle manure. Investigations were performed at bench- and full-scale. During the three-stage mesophilic-thermophilic-mesophilic anaerobic treatment of liquid manure from cattle receiving a high-fiber diet, a comparably high methane yield of 0.24 m3 per kg of volatile solids was achieved. Given a minimum guaranteed retention time of 4 h at 55°C, the level of fecal coliforms in liquid manure was reduced to below 10 MPN per g fresh matter. The concentration of infectious oocysts of Cryptosporidium parvum was reduced by more than 5 log-units. Increasing the feeding interval from 1 to 4 h had no significant influence on the performance of the system. When the temperature in the first treatment stage was decreased from 38 to 20-25°C, the process stability in the thermophilic reactor was significantly improved while overall the methane yield and the reduction of indicator organisms remained essentially unchanged. Based on these findings, two-stage thermophilic-mesophilic anaerobic digestion can be approved as a treatment technology for liquid manure to minimize the input of pathogenic and indicator organisms from livestock farming into the environment.
Book Synopsis Advances in Bioprocess Technology by : Pogaku Ravindra
Download or read book Advances in Bioprocess Technology written by Pogaku Ravindra and published by Springer. This book was released on 2015-08-13 with total page 529 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an extensive overview of the latest research in environmentally benign integrated bioprocess technology. The cutting edge bioprocess technologies highlighted in the book include bioenergy from lignocellulose materials, biomass gasification, ethanol, butanol, biodiesel from agro waste, enzymatic bioprocess technology, food fermentation with starter cultures, and intellectual property rights for bioprocesses. This book further addresses niche technologies in bioprocesses that broadens readers’ understanding of downstream processing for bio products and membrane technology for bioprocesses. The latest developments in biomass and bioenergy technology are reviewed exhaustively, including IPR rights, nanotechnology for bioenergy products, biomass gasification, and biomass combustion. This is an ideal book for scientists, engineers, students, as well as members of industry and policy-makers. This book also: Addresses cutting-edge technologies in bioprocesses Broadens readers’ understanding of metabolic engineering, downstream processing for bioproducts, and membrane technology for bioprocesses Reviews exhaustively the latest developments in biomass and bioenergy technology, including nanotechnology for bioenergy products, biomass gasification, biomass combustion, and more
Book Synopsis Technologies for Converting Biomass to Useful Energy by : Erik Dahlquist
Download or read book Technologies for Converting Biomass to Useful Energy written by Erik Dahlquist and published by CRC Press. This book was released on 2013-04-16 with total page 550 pages. Available in PDF, EPUB and Kindle. Book excerpt: Officially, the use of biomass for energy meets only 10-13% of the total global energy demand of 140 000 TWh per year. Still, thirty years ago the official figure was zero, as only traded biomass was included. While the actual production of biomass is in the range of 270 000 TWh per year, most of this is not used for energy purposes, and mostly it is not used very efficiently. Therefore, there is a need for new methods for converting biomass into refined products like chemicals, fuels, wood and paper products, heat, cooling and electric power. Obviously, some biomass is also used as food – our primary life necessity. The different types of conversion methods covered in this volume are biogas production, bio-ethanol production, torrefaction, pyrolysis, high temperature gasifi cation and combustion. This book covers the suitability of different methods for conversion of different types of biomass. Different versions of the conversion methods are presented – both existing methods and those being developed for the future. System optimization using modeling methods and simulation are analyzed to determine advantages and disadvantages of different solutions. Many international experts have contributed to provide an up-to-date view of the situation all over the world. These global perspectives and the inclusion of so much expertise of distinguished international researchers and professionals make this book unique. This book will prove useful and inspiring to professionals, engineers, researchers and students as well as to those working for different authorities and organizations.
Book Synopsis Biomass, Biofuels, Biochemicals by : Ashok Pandey
Download or read book Biomass, Biofuels, Biochemicals written by Ashok Pandey and published by Elsevier. This book was released on 2021-03-02 with total page 908 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biomass, Biofuels, Biochemical: Circular Bioeconomy: Current Developments and Future Outlook presents the views of experienced academicians and researchers working in the area of the circular bioeconomy. This book presents an assortment of Resource recovery, Waste Biorefineries, Bio-electrochemical systems, Biopolymers and Green solvents, Bio-adsorbents, and Technology transfer topics. Environmental engineers, biotechnologists, science graduates, chemical engineers, industrial experts and policymakers working in these areas will find the information on the circular economy and its important part in developing low carbon and resource-productive economies very informative. Methodologies and beneficial strategic approaches to address the usage of wastes from agriculture, co-products, and by-products are also discussed. - Provides information on recent developments in technology transfer and global scenarios of circular bioeconomy as a single point of reference for any query regarding circular economies - Covers information on the recovery of resources, waste biorefineries and bio-electrochemical systems, and product development surrounding the circular bioeconomy - Includes information on the integration of processes and technologies for the production of biofuels and value-added products - Presents strategic integrations of various techniques/bioprocess that are essential in establishing a circular biorefinery
Book Synopsis Anaerobic Digestion by : Guangxue Wu
Download or read book Anaerobic Digestion written by Guangxue Wu and published by Springer Nature. This book was released on with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advanced Biological, Physical, and Chemical Treatment of Waste Activated Sludge by : Antoine Prandota Trzcinski
Download or read book Advanced Biological, Physical, and Chemical Treatment of Waste Activated Sludge written by Antoine Prandota Trzcinski and published by CRC Press. This book was released on 2018-11-02 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recently, research efforts aiming to improve energy efficiency of wastewater treatment processes for large centralized wastewater treatment plants (WWTPs) have been increasing. Global warming impacts, energy sustainability, and biosolids generation are among several key drivers towards the establishment of energy-efficient WWTPs. WWTPs have been recognized as major contributors of greenhouse gas emissions as these are significant energy consumers in the industrialized world. The quantity of biosolids or excess waste activated sludge produced by WWTP will increase in the future due to population growth and this pose environmental concerns and solid waste disposal issues. Due to limited capacity of landfill sites, more stringent environmental legislation, and air pollution from incineration sites, there is a need to rethink the conventional way of dealing with wastewater and the sludge production that comes with it. This book provides an overview of advanced biological, physical and chemical treatment with the aim of reducing the volume of sewage sludge. Provides a comprehensive list of processes aiming at reducing the volume of sewage sludge and increasing biogas production from waste activated sludge. Includes clear process flowsheet showing how the process is modified compared to the conventional waste activated sludge process. Provides current technologies applied on full scale plant as well as methods still under investigation at laboratory scale. Offers data from pilot scale experience of these processes
Book Synopsis New Advances on Fermentation Processes by : Rosa María Martínez-Espinosa
Download or read book New Advances on Fermentation Processes written by Rosa María Martínez-Espinosa and published by BoD – Books on Demand. This book was released on 2020-02-05 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, there has been an increase in the concern of society and industries about how food and beverages are produced, the production of natural compounds as well as the concern of industries on fermentation-based processes. Thus, there are several approaches worldwide that are looking for low time and low cost fermentation-based processes integrating not only molecular biology procedures but also engineering. This book contains eleven chapters written by international experts in the field of fermentation. It covers all recent aspects on fermentation-based processes with potential applications in many fields such as bio combustible production, food and beverage processing, and biomedicine.
Book Synopsis Renewable Energy Technologies for Energy Efficient Sustainable Development by : Arindam Sinharoy
Download or read book Renewable Energy Technologies for Energy Efficient Sustainable Development written by Arindam Sinharoy and published by Springer Nature. This book was released on 2022-01-03 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: The depletion of fossil fuel reserves and concerns for environmental degradation due to the fossil fuel burning have led the scientific community to look for alternative renewable energy sources. Among the available renewable energy sources, bioenergy derived from biomass and waste resources have great potential to not only prevent environmental pollution but also be a carbon neutral energy source. In addition, adaptation of this technology could streamline new green products, alternative energy sources into real-world applications and promote a circular economy towards zero-waste approach. This book tries to bridge the existing knowledge gap in the area of bioenergy resources. The first two chapters provide introduction to the anaerobic digestion (AD) technologies and direct interspecies electron transfer in AD. The next three chapters are on biomass pretreatment technologies for process improvement. The sixth to eighth chapter discuses biogas and other by-product production from specific wastes such from dairy, food and agricultural solid waste. The following two chapters focuses on the downstream processing of anaerobic digestate and on biochar production. Integration of AD in biorefineries using bioelectrochemical systems, syngas fermentation and electricity production are discussed in the next three chapters. The final two chapters elaborates on life cycle assessment of AD based technologies.
Book Synopsis Relationship Between Microbes and the Environment for Sustainable Ecosystem Services, Volume 3 by : Jastin Samuel
Download or read book Relationship Between Microbes and the Environment for Sustainable Ecosystem Services, Volume 3 written by Jastin Samuel and published by Elsevier. This book was released on 2022-11-26 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: Relationship Between Microbes and Environment for Sustainable Ecosystem Services, Volume Three: Microbial Tools for Sustainable Ecosystem Services promotes advances in sustainable solutions, value-added products, and fundamental research in microbes and the environment. Topics include advanced and recent developments in the use of microbes for sustainable development. Volume Three includes concepts and applications of microbes in ecosystem services, with a focus on sustainable practices. The book will include case studies and utility of microbes on both geographical and production system-wide considerations. This book provides reference information ranging from the description of various microbial applications for the sustainability in different aspects of food, energy, environment industry and social development. This book will be helpful to environmental biotechnology scientists, industrial professionals and experts working in the field of microbiology. - Covers the latest developments, recent applications and future research avenues in microbial biotechnology for sustainable development - Includes expressive tables and figures with concise information about sustainable ecosystem services - Provides a wide variety of applications and modern practices of harnessing the potential of microbes in the environment
