1Hafsah, M. A., 1Kaltum, U. M., * 1Abdulhamid, M. R., 1Ali, A. A., 1Grace, F. A., 3Adeboye M. M., 2Musa, I., 1Usman A. B., 1Hauwa M. A., 1Hosea, S. H., 1Falmata B. M. D and 4Daniel, I. D
1Department of Microbiology, Faculty of Science, University of Maiduguri, Maiduguri, Nigeria
2Department of Biological Sciences, Faculty of Science, University of Maiduguri, Maiduguri, Nigeria
3Department of Biological Sciences (Microbiology Unit) Faculty of Science, Confluence University of Science and Technology, Osara, Kogi State
4Ministry of Health, Gombe State
*Corresponding author: abdulhamidmusaruwa86@gmail.com, doi.org/10.55639/607.090807
ABSTRACT
Biogas is a type of biofuel that is naturally produced from the decomposition of organic waste. Anaerobic digestion has been considered as waste-to-energy technology, and is widely used in the treatment of different organic wastes. This study was carried out for biogas production from degradation or break down of poultry waste in producing biogas through anaerobic digestion. This was achieved by constructing four (4) local digesters and gas collection/passage pipe systems mounted in the laboratory of Department of Microbiology, University of Maiduguri. The digesters were used to digest the slurry (poultry waste and water) through microbial actions of the identified microorganisms. E. coli, P. aeruginosa, B. subtilis and S. aureus was isolated and identified. Proximate analysis of the substrate was also determined. The results revealed that nitrogen has 523 ± 0.17 % (mg/ml), potassium has 713 ± 4.00 % (mg/ml) and phosphorus has 231 ± 0.03 % (mg/ml). Others such as Ash Content (%) 27.27 ± 0.18, Crude Protein Content (%) 20.66 ± 0.16, Crude Lipid Content (%) 2.33 ± 0.32, Carbohydrate Content (%) 22.5 ± 0.14, Crude Fiber Content (%) 16.24 ± 0.32, and Moisture Content (%) 9.66 ± 0.03 were also determined. The total average yield of the gas produced was 575.71, 309.99, 114.29, and 558.58 for D1, D2, D3, and D4 respectively within six weeks of production. The elements value determined implies that the digest could be a good source of bio fertilizer. The pH values of the media in all the substrates digested were found in the optimal or at a neutral pH level of methanogenic bacteria of 6.12-7.20. This study revealed that poultry waste is a good substrate for biogas production and optimizing the slurries during the production stage is very essential.
Keywords:
Poultry droppings,
Biogas,
Biofertilizers,
Anaerobic
digestion,