Abstract
Because of its high organic content, biomass waste from agriculture and animals can serve as a source of raw materials for the production of biogas. The goal of this study is to determine the ideal volume and rate of biogas generation as well as the digester temperature, and material pH. This research was conducted by experimental method with 3 treatments and 3 replications, namely a mixture of cow dung with rice straw (P1), corn cobs (P2), and water hyacinth (P3). The results showed that the best biogas yield was obtained from a mixture of cow dung and rice straw (P1) with the highest initial and final temperature values of 29.8 0C and 27.3 0C, and the highest initial and final pH of 6.8 and 7.0. The highest biogas volume was 66.03 L and the highest gas production rate was 7.45 L/day.
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