UTILIZATION OF POULTRY, COW AND KITCHEN WASTES FOR BIOGAS PRODUCTION: A COMPARATIVE ANALYSIS

The amount of solid wastes generated in developing countries such as nigeria has steadily increased overthe last two decades as a result of population explosion and continuous growth of industries andagricultural practices. in agriculture, particularly cattle rearing, large quantities of cow wastes aregenerated, which could be used as biogas inputs to compliment the fuel usage alternative. in addition, alarge number of families generate heavy wastes in the kitchen on a daily basis, which could be convertedto economic benefits. in this work, a comparative study of biogas production from poultry droppings,cattle dung, and kitchen wastes was conducted under the same operating conditions. 3kg of each wastewas mixed with 9l of water and loaded into the three waste reactors. biogas production was measured fora period of 40 days and at an average temperature of 30.5oc. biogas production started on the 7th day, andattained maximum value on the 14th days for reactor 1. production reached its peak on the 14th day with85×10-3dm3 of gas produced in reactor 2. for reactor 3, biogas production started on the 8th day andproduction reached a peak value on the 14th day. the average biogas production from poultry droppings,cow dung and kitchen waste was 0.0318dm3/day, 0.0230dm3/day and 0.0143dm3/day, respectively. it isconcluded that the wastes can be managed through conversion into biogas, which is a source of incomegeneration for the society.