Chemical Engineering and Science
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Chemical Engineering and Science. 2015, 3(1), 7-11
DOI: 10.12691/ces-3-1-2
Open AccessArticle

A Kinetic Study of Biogas Produced from Cow and Elephant Dungs Using the Residual Substrate Concentration Approach

Surajudeen Abdulsalam1, and Mustapha Yusuf2

1Department of Chemical Engineering, Abubakar Tafawa Balewa University, Bauchi, PMB 0248, Bauchi, Bauchi State-Nigeria

2Department of Chemical Engineering, Ahmadu Bello University, Zaria, Kaduna State-Nigeria

Pub. Date: November 24, 2015

Cite this paper:
Surajudeen Abdulsalam and Mustapha Yusuf. A Kinetic Study of Biogas Produced from Cow and Elephant Dungs Using the Residual Substrate Concentration Approach. Chemical Engineering and Science. 2015; 3(1):7-11. doi: 10.12691/ces-3-1-2


Kinetic investigations of biogas produced from Cow dung and Elephant dung were carried out. Three samples tagged: 1 (100% Cow dung), 2 (50% Cow dung and 50% Elephant dung) and 3 (100% Elephant dung) were investigated in prototype batch bio-digesters using anaerobic digestion process. In addition, the kinetic studies of the three samples investigated were carried out. Results obtained revealed that Sample ‘2’, the co-digestion of Cow and Elephant dung gave the best cumulative biogas production of 3.92*10-4 g/cm3 and average yield of 0.084 5 over a period of 33 days. The kinetic of the process followed a shifting order (0-1); the kinetic parameters obtained can be used to size bio-digester and also monitor the rate of biogas produced. Therefore, the co-digestion of Elephant and Cow dung in equal proportion can be used to increase yield of biogas.

anaerobic co-digestion yield cumulative concentration prototype batch biogas kinetic

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