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Volume 6, Issue 2, April 2017, Page: 13-21
Characterisation Peal of Fruit and Leaf of Vegetable Waste with Cow Dung for Maximizing the Biogas Yield
Massreshaw Assnakew Abebe, Addis Ababa City, Addis Ababa City Cleansing Management Office, Addis Ababa, Ethiopia
Received: Nov. 24, 2016;       Accepted: Mar. 24, 2017;       Published: Apr. 17, 2017
DOI: 10.11648/j.ijepe.20170602.12      View  2725      Downloads  206
The biogas production and methane (CH4) enrichment for anaerobic digestion (AD) of fruit and vegetable waste (FVW). The biogas production and methane content of fruit and vegetable wastes (FVW) degradation were evaluated against a treatment combination with a cow dung at a Ratio of FVW to Cow dung T1 (cow dung alone), T2 (1:3), T3 (1:1), T4 (3:1),and T5 (FVW alone). The digesters were operated for 80 days. The highest total methane yields about 78.35% was obtained from the cow dung digester (T1). The highest production of biogas yield (7552.67 ml) was observed in T1 and the lowest biogas production rate (2652.83ml) was from a reactor operated by FVW alone. Similar to the biogas yield, higher percentage of methane was produced in 1. Anaerobic digestion; vegetable and fruit wastes of high calorific contents can be transformed to a source of energy through the production of biogas in this day and age of energy insufficiencies. Role in maximizing the process of anaerobic digestion through speeding up hydrolysis and to compare production potentials of commonly available wastes in Addis Ababa for possible co-digestion in large scale production of biogas. Thermo-chemical pre-treatment was the most effective for speeding up hydrolysis with the co-digested substrates producing maximum biogas. The moisture content ranged between 67-83%. The pH reduced from 6.8-7.2 before digestion to 6.2-6.8 after digestion. The desired C: N ratio was between 18:1 to 32:1 for Anaerobic Digestion. The gas produced was found to contain 63.89% methane, 33.12% CO2 and 3% other gases.
Anaerobic Digestion, Co-digestion, C: N Ratio, Hydrolysis, Substrate Pre-treatment
To cite this article
Massreshaw Assnakew Abebe, Characterisation Peal of Fruit and Leaf of Vegetable Waste with Cow Dung for Maximizing the Biogas Yield, International Journal of Energy and Power Engineering. Vol. 6, No. 2, 2017, pp. 13-21. doi: 10.11648/j.ijepe.20170602.12
Copyright © 2017 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License ( which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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