Studies on residence time distribution in cylindrical and rectangular biogas digesters

Jash, Tushar; Ghosh, Dulal C.

doi:10.1016/0360-5442(90)90024-v

Cited by 2 publications

(1 citation statement)

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“…Many household digesters do not have a stirrer to mix the digester content, which creates stagnant regions in the digesters. Due to these stagnant regions, the digester HRT is decreased compared to its calculated HRT, leading to wash out of the microorganisms [81,134,135].…”

Section: Loading Rate and Yield Of Biogas Producedmentioning

confidence: 99%

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: Loading Rate and Yield Of Biogas Producedmentioning

confidence: 99%