DESIGN OF HOUSEHOLD ANAEROBIC BIO-DIGESTER FOR BIOGAS PRODUCTION FROM ABATTOIR WASTE

Despite the awareness on the importance of using biogas produced from various biomasses that were previously considered as wastes, the fact remains that its applicability or usage in domestic purposes such as cooking stoves has not really gained attention especially in developing countries. Based on this reason, this research designed a batch system biogas generating facility that will serve the energy needed for cooking meals by a family size of six members, using rumen contents of cattle (Bos indicus) as biomass. The results made known that an anaerobic digester having a capacity of 2.7m ³ will perfectly serve for such facility to meet its intended use when fed with 72kg of substrate per batch, while the gas holder volume should be 0.527m ³. Necessary appurtenances including water jacket were designed and detailed dimensions, drawings as well as costing of the entire facility were provided to ease fabrication and possibly adjustment in the future if the need arise.