Department of Environment, Damavand Branch, Islamic Azad University, Damavand, Iran.
Corresponding Author Email: khoramnejad@damavandiau.ac.ir
DOI : https://doi.org/10.58321/AATCCReview.2023.11.04.387
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Abstract
In this study, an efficient method is presented for biogas formation from animal waste. Gas
production is a critical issue in today’s world and there is a big challenge to obtain it from
reproducible sources. A comprehensive study is presented on the production of methane in
biogas from animal wastes. For this purpose, a reactor was designed and animal wastes were
used as feed of the reactor for biogas production. For supplying the moisture during the gas
formation, the feed was mixed with distilled water in a 1:1 ratio. The mean cell residence time
was set at 25 days. The results showed an intense sensitivity of the microorganism to the pH of
the reactor. In acidic media, the produced biogas was much lower than in neutral and slightly
basic media. In addition, the percentage of methane in the biogas showed to be increased by
increasing pH from 6.8-7.2. In addition, the temperature should be maintained between 30-70 °C
to get the optimal yield of the gas production.