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ANALYTICAL APPROACH FOR PREDICTING BIOGAS GENERATION IN A MUNICIPAL SOLID WASTE ANAEROBIC DIGESTER
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نویسنده
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Ojolo S.J. ,Bamgboye A. I. ,Ogunsi B. S. ,Oke S. A.
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منبع
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journal of environmental health science and engineering - 2008 - دوره : 5 - شماره : 3 - صفحه:179 -186
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چکیده
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There is an increasing worldwide interest in the effective utilisation of municipal solid wastes as anavenue of reducing its high cost of clearing. municipal solid wastes are usefully converted into a mediumgrade fuel (biogas) to reduce its nuisance value to the environment. in this paper, the potential ofvegetable (putriscible) component of municipal solid wastes was examined in terms of biogas production.the vegetable component of the waste was used as substrate in a batch-fed 200 dm3 capacity anaerobicdigester, which was consecutively loaded with a 10-20 kg ranged weight of vegetable. the total solid(ts) of substrate was 8-10% over a retention period of 40 days. the temperature of the substrate duringbio-digestion was maintained within 29؛c and 33؛c. the average biogas yield varied from 5.15 dm3/kgtsto 5.83 dm3/kgts. from the digestion experiments, a regression equation, called the municipal solidwastes energy value model, was derived. this model estimates the biogas production from municipalsolid wastes. for the predictive model formulation, a relationship between retention time and thedaily/total biogas yield was explored. the polynomial function significantly represents the modelsformulated for the different quantity of substrate loaded. this strongly suggests that the polynomial seriesis best suited to predict the relationship between retention time and the quantity of substrate loaded for theexperiment. this tool is useful in optimising biogas production from energy materials, and requiresfurther validation and refinement. hopefully, this study advances this increasingly growing area ofmunicipal solid wastes research.
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کلیدواژه
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Solid waste ,biogas ,digester ,conversion ,energy model ,statistical analysis
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آدرس
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University of Lagos, Department of Mechanical Engineering, Nigeria, University of Ibadan, Department of Agricultural Engineering, Ibadan, Obafemi Awolowo University, Department of Agricultural Engineering, Nigeria, University of Lagos, Department of Mechanical Engineering, Nigeria
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پست الکترونیکی
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sa_oke@yahoo.com
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Authors
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