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Cow dung, poultry droppings and swine dung usually constitute refuse causing environmental pollution in Nigeria where these animals are reared. A study was conducted on the effectiveness of biogas production using poultry droppings and swine dung. The poultry droppings, swine dung and water were mixed in different ratios of 3:1:8 as sample A, 1:1:4 as sample B and 1:3:8 as sample C. The study was carried out using Completely Randomised Design replicated two times. Six biogas digesters of the same size were used and each sample was loaded into the digester which was monitored for 13 days. The production of the biogas from the three samples started on the 6 th day at temperatures between 20 o C and 40 o C and the volume produced daily was measured by displacement method. Samples B and C attained peak production on the 11 th day but sample A attained peak production on the 12 th day. Average biogas total volume production for samples A, B and C were 429.75 ml, 440.3 ml and 467.2 ml respectively. The mean volumes of biogas produced from the three digesters were significantly different from one another. Thus Digester C with the highest swine dung composition (1:3:8) was found to be more effective for producing biogas than poultry droppings (3:1:8).

Relatives effectiveness of biogas production using poultry droppings and swine dung