Biogas consists of methane gas (CH4) of 49%, carbon dioxide (CO2) of 45%, hydrogen (H2) of 1-5%, oxygen (O2) of 0.1-0.5%, hydrogen sulfide (H2S) of 0-3% and other imperfections (Fadli, 2013). The remainder of biogas fermentation can also be used as fertilizer The remainder of biogas fermentation can also be used as fertilizer which is very beneficial for plants. On the other hand, processing ca…