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Production and Purification of Biogas From Biodegradable Waste
Published in C. S. P. Rao, G. Amba Prasad Rao, N. Selvaraj, P. S. C. Bose, V. P. Chandramohan, Mechanical Engineering for Sustainable Development, 2019
P. Sai Chaitanya, T. V. S. Siva, K. Simhadri
This study investigated the effectiveness of cow dung for biogas production and presented the performance characteristics of the AD in batch and semicontinuous operations. Under above cited operations, cow dung quality is improved by 47% VS reduction19,22 and approximately 48.5% COD reduction1,6,7,23 with biogas yield of 0.15 L biogas/kg VS added. Despite large variations in pollutants concentrations, an improved performance of AD of the biodegradable fraction of cow dung was achieved. The results showed that cow dung might be one of feedstocks for the efficient biogas production, fertilizer, and waste treatment.
Solid Waste Management in Rural India
Published in V. Sivasubramanian, Bioprocess Engineering for a Green Environment, 2018
Segregated waste should be treated based on the nature of the waste. In rural regions, the majority of waste is biodegradable and is generated from the household kitchen and agriculture. Certain wastes have been directly used as fertilizers (such as cow dung). The other well-developed methods of treatment include composting (Technology Options for … 2013).
Experimental investigation of a spark ignition engine using blends of biogas
Published in International Journal of Ambient Energy, 2020
A. Arul Peter, M. Chandrasekaran, P. Prakash, T. Vinod Kumar, P. Vivek
Depletion and rapid conservation of conventional fuel compel humanity to search for new fuels for the next generation. At the same time, the emission from those fuels should abide by the laws of emission control. Whenever the fuel consumption under full load condition is low, the emissions are low. Biogas can be utilised as an alternative to conventional fuels. Cow dung can be used as a source for the production of biogas. The scrubbing process reduces the carbon dioxide and corrosive hydrogen sulphide from biogas. Combining biogas with gasoline increases SFC and also maintains the air quality. This experimental work is an attempt made with biogas blends with gasoline.
Quality of optimized biogas yields from co-digestion of cattle dung with fresh mass of sunflower leaves, pawpaw and potato peels
Published in Cogent Engineering, 2018
Moses A. Olojede, Oyetola Ogunkunle, Noor A. Ahmed
Livestock manure like cow dung in the absence of appropriate disposal methods can cause adverse environmental and health problems, such as pathogen contamination, odour, airborne ammonia, greenhouse gases and others (Harikishan & Sung, 2003). Several archaic and environment unfriendly methods of waste management have been employed in the time past, such as dumping of refuse in a landfill or dunghill which causes odour, empting of refuse in a drainage, which causes erosion and flood and burning of refuse which can cause release of greenhouse gases with attendant adverse effects on agricultural plantations.
Biogas production and its application in compressed gas
Published in Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2018
Fresh cow dung was collected from a university cow firm. In this study, cow dung has been used as feedstock for biogas production since it is readily available and also it is cheap. In India, the presence of cattle is prevalent and this also adds up to cow dung being used as raw material. Instead of thinking of ways to dispose the cow dung, it can be put to use effectively. The cow dung is collected from the nearby cowshed and it is made into a slurry by mixing it with water in the ratio of 2:1, i.e., two parts of water is mixed with 1 part of cow dung.