Handbook of Biofuels

Handbook of Biofuels

Author: Sanjay Sahay

Publisher: Academic Press

Published: 2021-10-31

Total Pages: 692

ISBN-13: 0128231335

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Handbook of Biofuels looks at the many new developments in various type of bioenergy, along with the significant constraints in their production and/or applications. Beyond introducing current approaches and possible future directions of research, this title covers sources and processing of raw materials to downstream processing, constraints involved and research approaches to address and overcome these needs. Different combinations of products from the biorefinery are included, along with the material to answer questions surrounding the optimum process conditions for conversion of different feedstocks to bioenergy, the basis for choosing conversion technology, and what bioenergy products make economic sense. With chapters on the techno-economic analysis of biofuel production and concepts and step-by-step approaches in bioenergy processing, the objective of this book is to present a comprehensive and all-encompassing reference about bioenergy to students, teachers, researchers and professionals. Reviews all existing and emerging technologies surrounding the production of advanced biofuels, including biodiesel and bioethanol Includes biofuel applications with compatible global application case studies Offers new pathways for converting biomass


Small-Size Biogas Technology Applications for Rural Areas in the Context of Developing Countries

Small-Size Biogas Technology Applications for Rural Areas in the Context of Developing Countries

Author: Martina Pilloni

Publisher:

Published: 2019

Total Pages: 0

ISBN-13:

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The world,Äôs rural population surpasses the three billion people mainly located in Africa and Asia; roughly half the global population lives in the countryside. Access to modern fuels is a challenge for rural people compared to their urban counterparts, which can easily access infrastructures and commercial energy. In developing countries rural populations commonly depend on traditional biomass for cooking and heating. A key strategy in tackling the energy needs of those rural populations is to advance their energy ladder from the inefficient, traditional domestic burn of biomass, organic waste, and animal manure. Governments and non-governmental institutions have supported small biogas digesters in rural areas, mainly in Asia, South America, and Africa, over the last 50¬†years. This chapter reviews the literature to offer an overview of experimental and theoretical evidence regarding the characteristics of design, construction material, feedstock, and operation parameters that made anaerobic digestion in small digesters a valuable source. Small-scale rural biogas digesters can generate environmental, health, and social benefits to rural areas with a net positive impact on energy access. Remarkable improvement in living standards was achieved with small inputs of the methane, produced via anaerobic digestion; however, challenges associated with lack of technical skills, awareness, and education remain and obstruct biogas,Äô full potential in rural areas, mainly in developing countries.


The Impact of Small Scale Biogas Technology on Household Income and Health in Ada'a Woreda, Oromia Region, Ethiopia

The Impact of Small Scale Biogas Technology on Household Income and Health in Ada'a Woreda, Oromia Region, Ethiopia

Author: Woubakal Tesfaye

Publisher: GRIN Verlag

Published: 2018-08-28

Total Pages: 95

ISBN-13: 3668785112

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Master's Thesis from the year 2018 in the subject Engineering - Civil Engineering, grade: 3.6, Addis Ababa University (Center for Development Studies), course: Environment and Sustainable Development, language: English, abstract: Access to modern energy is a key element in rural development. This thesis identified the Impact of Small Scale Biogas Technology on Household Income and Health in Ada’a Woreda, Oromia Region, Ethiopia. 9 kebeles were purposively selected where there are high number of biogas users. The descriptive statistical significances and the association of the dummy and continuous variables with the dependent variable were tested using chi-square and t-test. Propensity score matching was used to assess the impact small scale biogas technology has on health and income of household. The study found out small scale biogas technology is favorable among users due to; subsidy form the government; relatively cheap comparing to other fuel sources; as it considers the health economic and environmental benefits; as it saves fuel; it being smokeless; its durability; the fact that it cooks quickly; as it effectively uses waste from farm and produces compost for farm use. The result from Propensity score matching indicated that small scale biogas technology has a significant and positive impact on health . So, the impact of small scale biogas technology has an average treatment effect of 8249.2, 5968.5, 9961.5, 8652.3 ETB per annum to household income using nearest neighbor, radius, kernel and stratification methods. The impact of small scale biogas technology on health, the study looked at three outcome variables; cost of the treatment for the victims in the households; the number of days spent for fuel collection per week and; total members of the household affected by indoor air pollution (IAP). The impact of biogas on cost of treatment has an average treatment effect of 320.2, 392.5, 339.2, and 332.8 ETB using nearest neighbor, radius, kernel and stratification methods respectively. The impact of biogas on number days spent for fuel collection has an average treatment effect of -1.5, -1.4, -1.3, and -1.3 days using nearest neighbor, radius, kernel and stratification methods respectively. Lastly the impact of using small scale biogas technology on total members of household that are affected by the illness -1.2, -1.2, -1.2, and -1.2, member using nearest neighbor, radius, kernel and stratification methods respectively. As the technology has a great potential in promoting sustainable and renewable energy, much effort should be done in promoting the technology, awareness raising to non-user household and peer education should be done.


Biogas for Rural Areas

Biogas for Rural Areas

Author: Ivet Ferrer

Publisher: Mdpi AG

Published: 2022-02-16

Total Pages: 204

ISBN-13: 9783036532370

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Bioenergy is renewable energy obtained from biomass-any organic material that has stored sunlight in the form of chemical energy. Biogas is among the biofuels that can be obtained from biomass resources, including biodegradable wastes like manure, sewage sludge, the organic fraction of municipal solid wastes, slaughterhouse waste, crop residues, and more recently lignocellulosic biomass and algae. Within the framework of the circular economy, biogas production from biodegradable waste is particularly interesting, as it helps to save resources while reducing environmental pollution. Besides, lignocellulosic biomass and algae do not compete for arable land with food crops (in contrast with energy crops). Hence, they constitute a novel source of biomass for bioenergy. Biogas plants may involve both high-tech and low-tech digesters, ranging from industrial-scale plants to small-scale farms and even households. They pose an alternative for decentralized bioenergy production in rural areas. Indeed, the biogas produced can be used in heaters, engines, combined heat and power units, and even cookstoves at the household level. Notwithstanding, digesters are considered to be a sustainable technology that can improve the living conditions of farmers by covering energy needs and boosting nutrient recycling. Thanks to their technical, socio-economic, and environmental benefits, rural biogas plants have been spreading around the world since the 1970s, with a large focus on farm-based systems and households. However, several challenges still need to be overcome in order to improve the technology and financial viability.


Assessing opportunities and constraints for biofuel development in sub-Saharan Africa

Assessing opportunities and constraints for biofuel development in sub-Saharan Africa

Author: Graham von Maltitz

Publisher: CIFOR

Published: 2011-08-24

Total Pages: 66

ISBN-13:

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Sustainable biofuel production should provide opportunities for sub-Saharan African countries and their inhabitants, especially in impoverished rural areas. Biofuel feedstock production has the potential to bring job opportunities and earnings, but this should not be at the cost of existing livelihoods and the local environment. Biofuels also have the potential to increase energy security in these countries for both transportation and household needs. Sub-Saharan African biofuel feedstock production projects can be classified into 4 distinct models based on production scales (small- versus large-scale farm/plantations) and on the intended use of the biofuel (local versus national). The first type embraces large corporate plantations to supply the market for liquid transport fuel blends. The second type comprises small-scale producers linked to the corporate producers. The third type involves small-scale producers supplying the local energy needs of farmers and villages. The fourth and rarest type is linked to the large corporate plantations, to meet the corporation’s own energy needs. The introduction of foreign-owned, large-scale corporate plantations producing biofuel for transport fuel blends causes the most concern in sub-Saharan Africa, as their scale and ownership arrangements may disrupt rural livelihoods and affect access rights to land resources. However, these projects can also bring job opportunities, thereby providing alternative sources of income for poor communities. This working paper assesses mechanisms for limiting the negative impacts while maximising national benefit capture. Market-based mechanisms versus legal and policy mechanisms to enhance long-term sustainability are also discussed.


Microbial Biotechnology for Bioenergy

Microbial Biotechnology for Bioenergy

Author: Naga Raju Maddela

Publisher: Elsevier

Published: 2024-03-11

Total Pages: 497

ISBN-13: 0443141134

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Microbial Biotechnology for Bioenergy presents the new and emerging biotechnological and microbiological approaches in bioenergy and their economic, social, and environmental implications. Using the latest global data and statistics, it analyses how bioenergy technology improves quality of life by reducing air and water pollution and mitigates energy dependence by creating renewable resources in local communities. The book is formed of three sections; Section 1 addresses the “Sources, Challenges, and Environmental Views of Bioenergy and includes an overview of bioenergy, global statistics and projections for future bioenergy development, the role of biotechnology and bioprocesses in bioenergy, feedstock sources, challenges, decarbonisation, and emerging innovations and technologies. Section 2 “Yesterday, Today, and Tomorrow: Innovations of Bioenergy examines the vast topics of biotechnology and microbiology for bioenergy, reviewing both the present day state-of-the-art and future potential. Readers will find dedicated chapters on bioconversion of biomass energy and biological residues, the role of microbes, the potential of organic waste to provide bioenergy, the biotechnology of biofuels such as bioethanol, biodiesel, and biohydrogen, the sustainability of cellulosic ethanol energy and artificial photosynthesis, Power-to-X and integrating energy storage innovations, and the sustainability of microbial fuel cells. Finally, Section 3 explores the policies and environmental aspects of bioenergy, providing a global perspective on the current and future impact of bioenergy, including global projections based on present day global statistics. Microbial Biotechnology for Bioenergy is a valuable reference for biotechnologists, environmental engineers, and microbiologists interested in bioenergy, and includes explanations of the fundamentals and key concepts to ensure it is accessible to students as well as researchers and professionals. Provides an extensive account of the latest research in methods of production of graphene and its derivatives Covers commercial manufacture, research results, property data, and cutting-edge applications Discusses methods of incorporation in graphene products, chemical modifications, and projected future uses