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.
Download or read book Biofuel Crops written by Bharat P. Singh and published by CABI. This book was released on 2013 with total page 537 pages. Available in PDF, EPUB and Kindle. Book excerpt: Providing comprehensive coverage on biofuel crop production and the technological, environmental and resource issues associated with a sustainable biofuel industry, this book is ideal for researchers and industry personnel. Beginning with an introduction to biofuels and the challenges they face, the book then includes detailed coverage on crops of current importance or with high future prospects, including sections on algae, sugar crops and grass, oil and forestry species. The chapters focus on the genetics, breeding, cultivation, harvesting and handling of each crop.
Download or read book Biofuel Production Technologies Critical Analysis for Sustainability written by Neha Srivastava and published by Springer. This book was released on 2020-04-02 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: Production and utilization of sustainable energy toward maintaining a clean environment is a major challenge. At the same time, the continued depletion of fossil fuels and the global dependency on non-renewable fuels is a chief concern. Moreover, the long-term economic and environmental issues associated with the high utilization of fossil fuel, such as global warming, are also important, particularly in the context of the predicted increase in the global population to around 5 billion by 2050. In recent years, researchers have been investigating alternative, renewable fuels to replace fossil fuels. Of the various options, biofuels are especially attractive due to their low production costs and the fact that they are pollution free. Also known as transportation fuels, their energy is derived from biological resources or through the biological processes. Biofuels such as biohydrogen, biomethane, biogas, ethanol and butanol offer a number of advantages and can be economically produced from cellulosic biomass. As such, they can play a vital role in sustainably meeting future energy demands. Biofuels have the potential to become a global primary energy source, offering significant reductions in greenhouse gas emissions as well as opportunities to increase economic and social development in rural communities and reduce the problems associated with waste disposal. However, low yields and lack of process technology are some of the aspects that need to be addressed. This book offers an overview of existing biofuels and the technologies to solve the problems associated with their practical implementation. Evaluating the biofuel options and discussing the opportunities and risks in relation to resources, technologies, practices, markets and policy, it provides insights into the development of economically viable bioenergy industries.
Download or read book Energy Ethanol written by Brent Yacobucci and published by The Capitol Net Inc. This book was released on 2009-12-31 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biobased Products and Industries written by Charis M. Galanakis and published by Elsevier. This book was released on 2020-01-23 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biobased Products and Industries fills the gap between academia and industry by covering all the important aspects of biobased products and their relevant industries in one single reference. Highlighting different perspectives of the bioeconomy, EU relevant projects, as well as the environmental impact of biobased materials and sustainability, the book covers biobased polymers, plastics, nanocomposites, packaging materials, electric devices, biofuels, textiles, consumer goods, and biocatalysis for the decarboxylation and decarboxylation of biobased molecules, including biobased products from alternative sources (algae) and the biobased production of chemicals through metabolic engineering. Focusing on the most recent advances in the field, the book also analyzes the potentiality of already commercialized processes and products. - Highlights the important aspects of biobased products as well as their relevant industries in one single reference - Focuses on the most recent advances in the field, analyzing the potentiality of already commercialized processes and products - Provides an ideal resource for anyone dealing with bioresource technology, biomass valorization and new products development
Download or read book Renewable Fuel Standard written by National Research Council and published by National Academies Press. This book was released on 2012-01-29 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the United States, we have come to depend on plentiful and inexpensive energy to support our economy and lifestyles. In recent years, many questions have been raised regarding the sustainability of our current pattern of high consumption of nonrenewable energy and its environmental consequences. Further, because the United States imports about 55 percent of the nation's consumption of crude oil, there are additional concerns about the security of supply. Hence, efforts are being made to find alternatives to our current pathway, including greater energy efficiency and use of energy sources that could lower greenhouse gas (GHG) emissions such as nuclear and renewable sources, including solar, wind, geothermal, and biofuels. The United States has a long history with biofuels and the nation is on a course charted to achieve a substantial increase in biofuels. Renewable Fuel Standard evaluates the economic and environmental consequences of increasing biofuels production as a result of Renewable Fuels Standard, as amended by EISA (RFS2). The report describes biofuels produced in 2010 and those projected to be produced and consumed by 2022, reviews model projections and other estimates of the relative impact on the prices of land, and discusses the potential environmental harm and benefits of biofuels production and the barriers to achieving the RFS2 consumption mandate. Policy makers, investors, leaders in the transportation sector, and others with concerns for the environment, economy, and energy security can rely on the recommendations provided in this report.
Download or read book Motor Vehicle Emission Simulator MOVES written by and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fundamentals of Natural Gas written by Vivek Chandra and published by Pennwell Books. This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cleaner and more versatile than other hydrocarbons, natural gas has never had a brighter future. The new edition of Fundamentals of Natural Gas thoroughly explains the massive evolution of natural gas and LNG, from technology advances and vast new reserves. As forecasts of worldwide consumption increase dramatically, this "prince of hydrocarbons" is the natural choice for electric power, heating, and as an industry feedstock. Features of the Second Edition: Growth of unconventional shale gas technology and production Rise of LNG export projects from the United States International adoption of gas-on-gas pricing Impact of LNG mega-projects and the adjusting economics of these ventures
Download or read book Biomass written by Kelsi Bracmort and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This report discusses the use of biomass as an energy feedstock, which is emerging as a potentially viable alternative to address U.S. energy security concerns, foreign oil dependence, rural economic development, and diminishing sources of conventional energy. Biomass (organic matter that can be converted into energy) may include food crops, crops for energy (e.g., switchgrass or prairie perennials), crop residues, wood waste and byproducts, and animal manure. This report discusses legislation regarding biomass, the evolving definition of biomass, and the positions of supporters and detractors of biomass as an alternative energy source.
Download or read book Biosolids Treatment Processes written by Lawrence K. Wang and published by Springer Science & Business Media. This book was released on 2007-09-06 with total page 854 pages. Available in PDF, EPUB and Kindle. Book excerpt: The past thirty years have seen the emergence of a growing desire worldwide that positive actions be taken to restore and protect the environment from the degrading effects of all forms of pollution—air, water, soil, and noise. Because pollution is a direct or indirect consequence of waste, the seemingly idealistic demand for ”zero discharge” can be construed as an unrealistic demand for zero waste. However, as long as waste continues to exist, we can only attempt to abate the subsequent pollution by converting it to a less noxious form. Three major questions usually arise when a particular type of pollution has been identified: (1) How serious is the pollution? (2) Is the technology to abate it available? and (3) Do the costs of abatement justify the degree of abatement achieved? This book is one of the volumes of the Handbook of Environmental Engineering series. The principal intention of this series is to help readers formulate answers to the above three questions. The traditional approach of applying tried-and-true solutions to specific pollution problems has been a major contributing factor to the success of en- ronmental engineering, and has accounted in large measure for the establi- ment of a “methodology of pollution control. ” However, the realization of the ever-increasing complexity and interrelated nature of current environmental problems renders it imperative that intelligent planning of pollution abatement systems be undertaken.
Download or read book Promoting Biofuels written by Jörg Peters and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Interest in biofuels is growing worldwide as concerns about the security of energy supply and climate change are moving into the focus of policy makers. With the exception of bioethanol from Brazil, however, production costs of biofuels are typically much higher than those of fossil fuels. As a result, promotion measures such as tax exemptions or blending quotas are indispensable for ascertaining substantial biofuel demand. With particular focus on developing countries, this paper discusses the economic justification of biofuel promotion instruments and investigates their implications. Based on data from India and Tanzania, we find that substantial biofuel usage induces significant financial costs. Furthermore, acreage availability is a binding natural limitation that could also lead to conflicts with food production. Yet, if carefully implemented under the appropriate conditions, biofuel programs might present opportunities for certain developing countries.
