keywords: Impact Temperature, Wastes, Anaerobic, Cassava Peels, Biogas.
Anaerobic digestion is an established technology to treat different kinds of wastes and simultaneously produce biogas, a mixture of methane and carbon dioxide, which is a useful and renewable energy source. In this work, the influence of temperature on the biogas production from cassava peels is studied in batch-type anaerobic digesters of volume 500 ml at digestion temperatures of 35±50C, 45±50 C and 55±50C for a retention period of 30 days. Biogas produced was measured following the manometric method with a pressure gauge twice a day for the first 7 days and then once a day for the remaining 23 and converted to volumetric gas production. It was observed that the cumulative biogas production increased by 25 % when the digestion temperature was increased from the mesophilic temperature range to thermophilic temperature range. The highest cumulative biogas yield of 289.3 3 X 10-5 m3/kg-TS was obtained with the highest digestion temperature of 55±50C. It is therefore concluded that biogas production increases with the increase in digestion temperature and it is recommended that anaerobic digestion should be carried out at the thermophilic temperature range for better gas yield. So if we can provide extra energy to increase the digestion temperature, better and faster gas production can be achieved from cassava peels.