Biogas

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Submitted By touseefgulzada
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INTERNATIONAL JOURNAL OF

ENERGY AND ENVIRONMENT
Volume 4, Issue 1, 2013 pp.153-160 Journal homepage: www.IJEE.IEEFoundation.org

Production of bio-gas from maize cobs
Luter Leke1, 2, Anne Ada Ogbanje2, 3, Dekaa Henry Terfa2, Tyoalumun Ikyaagba1
College of Physical Sciences, University of Aberdeen, AB24 3UE, Aberdeen - UK. Department of Chemistry, Benue State University, P M B 102119, Makurdi, Nigeria. 3 Department of Renewable Energy, Energy Commission of Nigeria, Garki-Abuja, Nigeria.
2 1

Abstract Anaerobic digestion of energy crop residues and wastes is of increasing interest in order to reduce greenhouse gas emissions and to facilitate a sustainable development of energy supply. Production of biogas provides a versatile carrier of renewable energy, as methane can be used for replacement of fossil fuels in both heat and power generation as vehicle fuel. Biogas fuel production from blends of biological wastes such as Cow rumen liquor (CL), Poultry droppings (PD), and Goat Faeces (GF) with Maize cobs (M) were studied. 20 g of each inoculum was mixed with 100g of degraded maize cobs in the first three digesters while the fourth contained CL 10g, PD 10 g, and M 100 g. 100 g of M alone in the fifth digester served as the control. The blends were subjected to anaerobic digestion for 10 days on the prevailing atmospheric ambient temperature and pressure conditions. Physiochemical properties of the blends such as moisture content, crude protein, ash, fat, crude fibre, carbohydrate content, C/N ratio, and pH were also determined. Results of the daily performances of each system showed that maize cobs (M) alone had cumulative biogas yield of 1.50 cm3 while those of the blends (MCL, MPD, MGF and MCLPD) were 6.11 cm3, 3.05 cm3, 2.50 cm3, and 63.00 cm3 respectively, pH and C/N ratio affected the biogas yield of the systems significantly. These results indicate that…...

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