The Biogas Production from mixture of Agar and Rumen Wastes

The effect of Agar waste on biogas production from the co-digestion of Rumen waste was studied at room temperature and prevailing atmosphere pressure conditions. The slurries were used in the fermentor in 5 litre of glass bottles working volume on a batch reactor for over 40 days. The preparation of slurry in different ratio of mixture of Agar waste and Rumen waste were 1:1, 1:3, 3:1 and control. The experiments was done in triplicate. Biogas production was measured indirectly by water displacement method. The result indicated that the mixture of 1:1 ratio of substrate provide the highest average volume of biogas production in 2445ml than followed by 3:1, 1:3 and control of agar and rumen waste gave average yield of 2272, 1836, 837 and 407.36ml. The result showed fastest onset of gas flammability from 1:1 and 3:1 ratio after the 4th day than followed by 1:3, control of agar and rumen waste started producing flammable biogas on the 7th, 8th and 20th day. The pH of the 1:1 ratio substrates was increased in before and after the biogas production experiments provided a reading of pH 5.4 and 6.4. In this present the investigation the utilization of 1:1 ratio substrates for biogas production could eliminate its disposal problems and create another abundant source of sustainable energy. The biogas process has established to be cheap and practically feasible.