Biogas Production from Chicken Manure Co-digested with Napier Grass and Food Waste by Solid State Anaerobic
Abstract
The objective of this research were to determine the biogas production from chicken manure co-digested with Napier grass and food waste by solid state anaerobic. Feedstock was mixed with inoculum at F/I ratio of 1:1 2:1 3:1 and 4:1 based on the volatile solid (VS). Results shown that among the 4 F/I ratios tested, the F/I ratio of 1:1 gave the highest methane yield and methane production. The highest methane yields (140 L CH4/kgVS) from Napier grass followed by chicken manure and food waste. Methane yield from chicken manure and food was 138 and 36 LCH4/kgVS, respectively at F:I ratio of 1:1. The highest methane production of 71 m3CH4/ton was obtained from chicken manure followed by napier grass (51 m3CH4/ton) and food waste (14 m3CH4/ton). The methane production potential from chicken manure by difference TS concentration at 16% 20% and 25%. Chicken manure gave maximum methane yield from TS concentration of 16% followed by 20% and 25% trial with methane yield of 138 133 and 104 L CH4/kgVS. The degradation efficiency at 16, 20 and 25 % was 42.29 35.53 and 29.30 % respectively
Keywords : biogas, anaerobic digestion, fermentation
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