Study on Effect ofx Temperaturelncrease on the Productivity of Methanefrom POME Fermentation

Abstract

Indonesia as a biggest palm oil producer country in the world is also producing is also producing palm oil mill effuent (POME). In 2011, palm oil factories in Indonesia produced 68,697,300 tons POME. POME is a hazardous liquid waste for environment, but with proper processing PO ME will be a potential energy source. The research objective of this study were to determine the effect of temperature rise on the production of methane gas in the POME fermentation. The POME and sludge mixture then was fermented at different temperatures according to the treatment at room temperature, 45°C, and 55°C. Observation parameters were biogas volume and composition of biogas(CH4, CO2, and N]). The' results showed that: (I) The temperature increase of POME fermentations from 30°C 10 55°C can increase the speed COD removal, productivity methane, and methane gas concentration; (2) POME's fermentation at temperatures 55°C, temperature 45°C, and 30°C could produce methane productivity as much as 0,28 mJ ; 0,25 m), and 0,20 m) respectively for each kg COD removal; (3) POME's fermentation at temperature 55°e, 45°e, and 300e could produce biogas with methane contents of 65.44%, 62.57% and 59.55% respectively.