Biogas Technology for Rural Households in Kenya

Laichena, Justus K.; Wafula, James

doi:10.1111/1468-0076.00033

Cited by 2 publications

(4 citation statements)

References 1 publication

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“…However, free fermentable carbohydrates will increase the volatile fatty acids concentration, which affects the methane forming bacteria. Usually, the steady state of biogas production is observed after two months of operation with a constant OLR [33,145].…”

Section: Biogas Storage and Maintenance Of Digestersmentioning

confidence: 99%

“…The efficiency of the heat entering the vessel from the stove was high for biogas with 57.4%, followed by LPG, kerosene, and wood with 53.6%, 49.5%, and 22.8%, respectively [151]. The biogas consumption and the thermal efficiency in the biogas stoves varied between 0.340-0.450 m 3 /h and 59-68% [67,145,[152][153][154].…”

Section: Biogas Stovesmentioning

confidence: 99%

“…However, the light intensity of the biogas lamp compared to a kerosene lamp or an electric light bulb, was in the power range of 25-75 W [145]. One cubic meter of biogas is equal to lighting 60-100 watt bulb for 6 h, or cooking three meals a day for 5-6 persons.…”

Section: Lighting and Power Generationmentioning

confidence: 99%

“…Gas-powered refrigerators or a chicken incubator can run on household biogas, which is a well known application in Kenya [98,145]. In India, around 4600 public toilets are connected to biogas digesters by a local NGO to improve social living conditions of the people.…”

Section: Other Applicationsmentioning

confidence: 99%

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Household Biogas Digesters—A Review

2012

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This review is a summary of different aspects of the design and operation of small-scale, household, biogas digesters. It covers different digester designs and materials used for construction, important operating parameters such as pH, temperature, substrate, and loading rate, applications of the biogas, the government policies concerning the use of household digesters, and the social and environmental effects of the digesters. Biogas is a value-added product of anaerobic digestion of organic compounds. Biogas production depends on different factors including: pH, temperature, substrate, loading rate, hydraulic retention time (HRT), C/N ratio, and mixing. Household digesters are cheap, easy to handle, and reduce the amount of organic household waste. The size of these digesters varies between 1 and 150 m 3 . The common designs include fixed dome, floating drum, and plug flow type. Biogas and fertilizer obtained at the end of anaerobic digestion could be used for cooking, lighting, and electricity.

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Section: Biogas Storage and Maintenance Of Digestersmentioning

confidence: 99%

Section: Biogas Stovesmentioning

confidence: 99%

Section: Lighting and Power Generationmentioning

confidence: 99%

Section: Other Applicationsmentioning

confidence: 99%

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Household Biogas Digesters—A Review

2012

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The Investigation of Chemical Composition and the Specific Heat Capacity of Cow Dung and Water Mixture

Nekhubvi

2024

Anaerobic Digestion - Biotechnology for Environmental Sustainability

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Energy is essential for the progress and development of nations. It must be reliable, affordable, and environmentally friendly. Among the most promising renewable energy sources, biogas technology has been developed to secure the existing energy supply. However, there is a need for more scientific research on the optimal use and performance of biogas plants for beneficiaries and installers. This study investigated the chemical composition of cow dung and its specific heat capacity. The results show that elements such as Al2O3, CaO, Fe2O3, K2O, MgO, MnO, Na2O, P2O5, SiO2, and TiO2 have different chemical compositions. Furthermore, the results show that cow dung’s composition and oxide content affect its specific heat capacity. Dzwerani had the highest concentrations of Al2O3, Fe2O3, and SiO2. Since the oxide composition of the dung samples from Tshino, Maila, and Gogogo differed, their specific heat capacities were also different. The results of this study encourage further investigations to determine a more accurate relationship between specific heat capacity and oxide composition.

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Biogas Technology for Rural Households in Kenya

Cited by 2 publications

References 1 publication

Household Biogas Digesters—A Review

Household Biogas Digesters—A Review

The Investigation of Chemical Composition and the Specific Heat Capacity of Cow Dung and Water Mixture

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