Design of an anaerobic biodigester model as an alternative for methane generation

Canales-Gutiérrez, Ángel; Quispe-Aucca, Blanca Jacqueline; Romero-Loaiza, Ricardo; Villafuerte-Prudencio, Nazario; Pineda, Janette Rosario Ramos; Aguilar, José Martin; Canqui-Flores, Bernabé

doi:10.36610/j.jsab.2021.090200081x

Cited by 1 publication

(1 citation statement)

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“…Carbon-nitrogen ratio (C/N). According to Table 1, dog feces has a very low C/N ratio of 12.4:1, which caused less processing of methanogenic bacteria [72,109]. According to [110], a C/N ratio between 25 and 30 is optimal for digestion; methanogenic bacteria consume 30 times more carbon than nitrogen, so optimal ratios between 10:1 and 30:1 or between 20:1 and 30:1 have been proposed [105].…”

Section: Resultsmentioning

confidence: 99%

Biodigestion System Made of Polyethylene and Polystyrene Insulator for Dog Farm (on the Example of the Republic of Chile)

Soto

Bertín

Calderón

et al. 2022

Life

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Anaerobic digestion is a system that can have a high environmental impact through the use of different wastes to obtain biogas and its consequent use for the generation of renewable energy. The objective of this study was to implement a polyethylene biodigester, using polystyrene for thermal insulation in a dog kennel, using canine feces collected in the same place during a period of 5 months to obtain biogas and energy. The results indicated that biogas production started on day 30 and stopped during the winter period with low temperatures; therefore, from day 54 onwards, equine manure was added to continue producing biogas. Although biogas was obtained, the biodigester did not function optimally, due to the fact that the materials used in its construction did not provide efficient insulation from the low external temperatures; the low C/N ratio of the canine feces, which led to a reduction in the processing of the methanogenic bacteria; and the low amount of feces collected for use. In general, the use of a biodigester can provide a tool for the biological processing and management of organic waste, yielding a cumulative source of renewable energy and ensuring environmental safety.

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Section: Resultsmentioning

confidence: 99%