Construction Of Digester And Production Of Biogas Using Cow Dung And Kitchen Waste

ABSTRACT

 The challenge arising from the recent rise in price and scarcity of fuels has resulted to the use of alternative energy sources where animal manure and kitchen waste are used to produce bio gas as substitute to fossil fuel. In this work (biogas production) in two treatments was setup consisting 25kg of kitchen waste (rice, plantain and banana peels) and 15kg of cow dung all in 40kg of water for digester A , and 25kg of kitchen waste (rice plantain and banana peels) 15kg cow dung, 10kg water hyacinth and 40kg of water for digester B. The retention period was (40) forty days. Observation shows that biogas started generating on the 5 day. Ignition test conducted on the biogas generated produced blue flame when the valve was open small. When the valve was open totally it produced yellow flame. The analysis of th gas composition shows a methane content of 53.34% for treatment A and 65% for treatment. It was concluded from the study that improved composition of methane in locally produced bio gas could be achieved using water hyacinth. This has opened up opportunity to explore the raw material for such application.