Biogas Value Chain and Environmental Sustainability ab 68 € als Taschenbuch: Biogas Production From Biowaste In Kenya And Its Contribution To Environmental Sustainability. Aus dem Bereich: Bücher, Wissenschaft, Technik,
Biogas Value Chain and Environmental Sustainability ab 68 EURO Biogas Production From Biowaste In Kenya And Its Contribution To Environmental Sustainability
Today's bioenergy systems are frequently characterised by limited conversion efficiency and dependencies on few species of energy crops leading to low biodiversityin plant production. With the aim to improve the ecological performance of biomass production and processing and to convert a wider spectrum of biomass resources, the integrated generation of solid fuel and biogas from biomass (IFBB) was developed. Its core element is the mechanical separation of the wet conserved biomass into a solid fuel for combustion and a liquid for anaerobic digestion with subsequent production of heat and electricity from the biogas. This study investigated biological and chemical parameters of the IFBB process. Furthermore, life cycle assessment was conducted to evaluate the overall energy efficiency as well as saving potentials of fossil primary energy and emissions of greenhouse gases of the IFBB process along the entire process chain.
Lignocellulosic materials are plant materials such as agricultural residues forest products (hard and soft wood) and crops (switch grass, Salix). The materials are not only cheap but are also readily available all year with little or no interference with food production chain. However, strict policies need to be developed for the management agricultural produce. This will reduce competition between biofuels (biodiesel, bioethanol and biogas), chemicals and food (Kumar, Barrett, Delwiche and Stroeve, 2009, Guo, Fang, Xu and Smith, 2012). Over the years, biomass derived fuels has been inadequately investigated due to factors that affect pretreatments and hydrolysis of biomass industrially. Pretreatment of lignocellulosic biomass play major process in the production of bioethanol. It involves the breakdown of the rigid structure of lignocellulose for the release of lignin, hemicelluloses and cellulosic polymers within the biomass.
Huge amounts of waste generated in Cameroon from various production activities are not disposed of as appropriate, nor as possible. The resulting harm on the environment is immense. Lack of the inclusion of sound waste management techniques in the agendas of the stakeholders over the years stand as the greatest challenge to the country. The health of the population is grossly at stake, and public health safety measures in Cameroon must be completely interwoven with the implementation of a sound waste management system. Resources that may have been allocated to other public investment projects are diverted to harness raw materials for the industries,while a vast amount of such raw materials lie in dumps,the ultimate waste recipient in Cameroon. Plus recommending the adoption of sound policies,this two-part study reviews in part I, a sound waste management chain: sorting, regular collection, recycling,incineration, composting/fermentation for energy recovery , before final landfilling. Part II addresses the example of palm oil processing and looks into how compost and biogas can be conveniently tapped from the residues to supplement income for the industry.
In the modern energy-demanding lifestyle there is an overwhelming need for exploring sources of energy which are renewable and eco-friendly. Bioconversion of biowaste streams for energy production is an increasingly promising option. Through the biogas value chain, bioconversion presents a very attractive route to valorise various biowaste and enables communities to meet their energy needs, conserve resources and protect the environment. However there are challenges in sustainable implementation of biogas technology. The book has therefore reviewed the biogas value chain from a critical sustainability perspective. It has also covered a detailed case study of the potential of biogas production from biowaste in Kenya and how it influences environmental sustainability. The evaluation of biowaste energy potential and the development of a simple yet effective methodology to assess its sustainability are some of the key issues that this book has addressed. In addition, the book also incorporates a thought provoking analysis of the potential contribution of biowaste-based biogas energy to environmental sustainability from an integrated industrial and domestic case study perspective.
To combat the present energy crisis, one of the important strategies need to be adopted is to develop and promote appropriate technology for utilizing non-traditional energy resources to satisfy energy requirements. Simarouba glauca is one of the potential feedstocks for the development of alternative fuel in India as it is available, nonedible grade and produced from tree borne oilseed plant. The major green energy components and their sources from Simarouba are biodiesel from seeds, ethanol from fruit pulps, biogas from oil cake, leaf litter and thermal power from leaf litters, shell and unwanted branches.The Simarouba biodiesel is obtained with a good yield by transesterification process using both homogeneous and heterogeneous catalysts. The engine is run smoothly using diesel blends of Simarouba biodiesel and pure diesel. The engine performance and engine emission analysis is nearly similar to that of the pure diesel. The full chain energy analysis conducted for Simarouba glauca plantation system in India shows a favorable result.
This book highlights the current limitations of biogas production and yield and new avenues to improving them. Biogas production and yield are among the most important renewable energy targets for our world. Pursuing an innovative and biotechnological approach, the book presents alternative sources for biogas production and explores a broad range of aspects, including: pre-treatment of substrates, accelerators (enzyme-mediated) and inhibitors involved in the process of obtaining biogas and its yield, design specifications for digesters/modified digesters, managing biogas plants, microbial risk and slurry management, energy balance and positive climatic impacts of the biogas production chain, and the impacts on Human, Animal and Environmental Health ("One Health" concept for the biogas chain).
This book provides an introduction to the basic science and technologies for the conversion of biomass (terrestrial and aquatic) into chemicals and fuels, as well as an overview of innovations in the field. The entire value chain for converting raw materials into platform molecules and their transformation into final productsare presented in detail. Both cellulosic and oleaginous biomassare considered.Thebook contains contributionsby both academic scientists and industrial technologists so that each topic combines state-of-the-art scientific knowledge with innovative technologies relevant to chemical industries. Selected topics include: Refinery of the future: feedstock, processes, products The terrestrial and aquatic biomass production and properties Chemical technologies and biotechnologies for the conversion of cellulose, hemicellulose, lignine, algae, residual biomass Thermal, catalytic and enzymatic conversion of biomass Production of chemicals, polymeric materials, fuels (biogas, biodiesel, bioethanol, biohydrogen) Policy aspects of biomass product chains LCA applied to the energetic, economic and environmental evaluation of the production of fuels from biomass: ethanol, biooil and biodiesel, biogas, biohydrogen