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World Journal of Engineering
Research and Technology

( An ISO 9001:2015 Certified International Journal )

An International Peer Reviewed Journal for Engineering Research and Technology

ISSN 2454-695X

Impact Factor : 5.924

ICV : 79.45

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*Ejiko S. O., Filani A. O., Onibon G. L. and Olakolegan O. D.


The determination of biogas production for varieties of substrates is pivotal in designing a self sufficient digester for private application and also for the development of large scale digester for marketing purposes. Some digester takes over 30days to generate ignitable gas. These substrates utilised in this work were mixture of cow dung, piggery waste and poultry waste. Substrates A, B, C of three digesters were mixed in proportion of 1:2:3, 2:3:1, and 3:1:2 respectively. Smart sensor gas detector was used to determine the biogas production capacity. The mean percentage of the carbohydrate (CH2O) for A, B, and C were 21.167, 26.333, and 19.5 respectively. The maximum quantity of gas produced daily was 0.00479m3 from 0.01125m3 volume of available space. The methane gas production model developed was a function of pig dung, carbohydrate and the curing days. Gas generated by the digester became ignitable at the 17th day of the curing period. The methane gas produce were collected from day 17 to 31. The carbohydrate content was found to be inversely proportional to the volume of methane gas produced. The pig dung has more of protein than carbohydrate. The lesser the carbohydrates content the more the biogas production at the early days which decreases accordingly as the curing days increases. The model developed is an effective tool for optimum collection planning and strategy storage management that will enhance the economic viability of a Biogas production firm.

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