Biogas production from cow dung using laboratory scale digester as potential tool for abattoir waste management

Ismail Hassan; Musa Abdullahi; Lawal Garba

doi:10.54117/gjpas.v1i1.13

Authors

Ismail Hassan Department of Biological Sciences, Faculty of Science, Bauchi State University P.M.B. 65 Gadau, Bauchi State, Nigeria
Musa Abdullahi Department of Science Laboratory Technology, Faculty of Science, Bauchi State University P.M.B. 65 Gadau, Bauchi State, Nigeria
Lawal Garba Department of Microbiology, Faculty of Science, Gombe State University, P.M.B. 127, Gombe Gombe State, Nigeria

DOI:

https://doi.org/10.54117/gjpas.v1i1.13

Keywords:

Biogas, Cow Dung, Digester, Physiochemical parameters, Anaerobic digestion

Abstract

The main challenge of the present world is to harness energy source which is environment friendly and ecologically balanced because the use of fossil fuels has led to global climate change, environmental degradation, and human health problems. This has forced the world to search for another alternate energy source, such as biogas. Biogas typically refers to a gas produced by the breakdown of organic matter in the absence of oxygen. Cow dung as a renewable source of energy supply has been proven to be very efficient. This work is focused on production of biogas using cow dung as a means of abattoir waste management. A laboratory scale digester was constructed using three 750ml capacity plastic water bottles with slurry concentration of 1500g cow dung per 3000cm³ distilled water over a retention time of three weeks. The biogas production started on the fourth day of fermentation and followed an increasing trend. Reaching its peak on the seventeenth day before a gradual fall in production rate. The average weekly production of biogas are; day1-7 (17.33cm³), day 8-14 (99.00cm³), day 15-21(172.33cm³). The result obtained from this study also indicates that Bacillus species were the most common bacteria isolated

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