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Please use this identifier to cite or link to this item: http://repository.fuoye.edu.ng/handle/123456789/1494

Title: Evaluation of Biogas Yield of Selected Ratios of Cattle, Swine and Poultry Wastes
Authors: Okuo, Daniel Onimisi
Waheed, Mufutau Adekojo
Bolaji, Bukola Olaleken
Keywords: Anaerobic digestion
Bioreactor
Cumulative yield
Daily yield
Issue Date: Oct-2016
Publisher: International Journal of Green Energy
Series/Report no.: Volume 13;No. 4
Abstract: Production of biogas from animal wastes could lessen the problems of energy shortage and indiscriminate animal waste disposal. A study of anaerobic digestion of selected ratios of cattle, swine, and poultry wastes was carried out to evaluate their biogas yields. Cattle (C), swine (S), and poultry (P) wastes were mixed as C:S:P in the following ratios: 1:0:0 (control), 1:0:1, 4:1:3, 2:1:1, 4:3:1, and 1:1:0 by mass to obtain six samples of of 0.4 kg each, referred to as samples 1 to 6 respectively. A quantity (0.1 kg) of inoculum (obtained by pre-fermenting equal masses of poultry waste and water for 50 days under anaerobic condition) and 0.5 kg of water were added to each of the samples. The resulting slurries were digested in triplicates for 30 days in 1.3 L laboratory-scale anaerobic digesters. The volume of biogas produced was obtained by downward displacement of water in a measuring cylinder. The cumulative biogas yields of samples 1 to 6 were 332.5, 497.5, 487.5, 467.5, 457.5, and 430.0 cm3/kg slurry respectively. The cumulative biogas yields of samples 2 and 3 were significantly (p < 0.05) higher than those of the other samples but not significantly (p > 0.05) different from each other. However, the cumulative biogas yield of sample 1 was significantly (p < 0.05) lower than those of the other samples. The study revealed that a blend of equal masses of cattle and poultry wastes is optimum for biogas production
URI: http://repository.fuoye.edu.ng/handle/123456789/1494
Appears in Collections:Mechatronics and Mechanical Journal Publications

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