THE BIOGAS PRODUCTION FROM SHRIMP FARMING WASTE
Keywords:
Shrimp farming waste, anaerobic digestion, biogas production potentialAbstract
Biochemical methane potential has been widely studied to treat waste organic matters and turn them into alternative energy. In this study we have shown the possibilities for using shrimp farming waste as the main substrate in co-digestion with rice straw and food waste by batch anaerobic digestion at room temperature. The experimental test was conducted for 30 days. Co-digestion was used to compare the methane production from shrimp wasteat the inoculum to substrate volatile solids ratios (r I/S) of 3, 2, and 1. The progress of the reaction from a solid substrate to a gaseous product was counted by water replacement and the gas composition by gas chromatography. A maximum methane yield of 53.71 mL/gvolatile solids was obtained at the ratio of 15W:15 rice straw. The methane content up to48.52% was obtained from this fraction whereas shrimp waste alone produced a maximum up to 16.51%. Co-digestion can improve the methane production compared with digestion of shrimp waste alone.
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