FAGBENLE, EMMANUEL OLABAYO and Covenant University, Theses (2021) BIODIGESTION OF CASSAVA PEEL WASTE, COW DUNG AND OIL PALM FUEL ASH FOR BIOGAS PRODUCTION. Masters thesis, covenant university.
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Abstract
Biogas, especially those obtained from cassava peels and cow dung have been discovered to contain a low concentration of methane when the cassava peel is not pretreated with chemical compounds or does not contain any buffer in its slurry. To this end, efforts towards achieving a higher concentration of methane have led to the co-digestion of cassava peel, cow dung and oil palm fuel ash under anaerobic conditions. In this project, two 235L digesters were used for this experiment with the first digester (digester A) containing 30 kg of cassava peel, 30 kg of cow dung and 120kg of water in the ratio 1:1:4, respectively. The second digester (digester B) contained 30kg of cassava peel, 30 kg of cow dung, 120 kg of water and 2.4kg of oil palm fuel ash in the ratio 1:1:4:0.08, respectively. The slurries obtained were digested anaerobically under mesophilic conditions. A retention period of 30 days was set for gas production. A comparative study of the biogas yields was conducted to determine if oil palm fuel ash influenced methane production. The overall result shows that digester B containing oil palm fuel ash produced more biogas and had higher methane concentration than digester A. Digester A produced 1070.3L of biogas with a maximum methane concentration of 33.6%. In contrast, digester B produced 1178.1L of biogas with a maximum methane concentration of 60.1%. Outcome from the study indicates that oil palm fuel ash is a suitable buffer for cassava peel and cow dung biogas production. The by-product of the anaerobic process is also useful as manure to grow agricultural produce. The significance of this study is to reduce the environmental and health hazards associated with inadequate waste management of cassava peel in Nigeria by turning waste to wealth through biogas production.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | anaerobic digestion; cassava peel; cow dung; oil palm fuel ash; environmental pollution; sustainable technology; biogas production; environmental sustainability |
| Subjects: | T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | UNSPECIFIED |
| Depositing User: | Mrs Hannah Akinwumi |
| Date Deposited: | 12 Jan 2022 10:36 |
| Last Modified: | 12 Jan 2022 10:36 |
| URI: | http://eprints.covenantuniversity.edu.ng/id/eprint/15547 |
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