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International Letters of Natural Sciences Online: 2014-02-07 ISSN: 2300-9675, Vol. 9, pp 1-14

doi:10.18052/www.scipress.com/ILNS.9.1

© 2014 SciPress Ltd., Switzerland

Biogas as Resources of Energy S. Yimer, O. P. Sahu*

Department of Chemical Engineering, KIOT, Wollo University, PO Box 1145, Dessie, Ethiopia Tel: +251933520653

*E-mail address: ops0121@gmail.com

ABSTRACT

The objective of the study described the importance of biogas and its importance. The biogas generally obtained from the waste. The so-called wastes that we discard and suffer with the consequences of improper management are of course partly huge energy and fertilizer sources that can support energy demands of cities greatly. Urban waste disposal is a serious challenge in all cities in the developing world, and its accumulation is an additional health hazard. Reliable and generally accepted disposal of the comparatively large amounts of digestate produced is necessary if biogas production is to be implemented. In this regard’s discussion has been about the biogas production reaction involves, design and applications

Keyword: Composter; Digestor; Energy; Fuel; Methane

1. INTRODUCTION

Due to scarcity of petroleum and coal it threatens supply of fuel throughout the world also problem of their combustion leds to research in different corners to get access the new sources of energy, like renewable energy resources. Solar energy, wind energy, different thermal and hydro sources of energy, biogas are all renewable energy resources. But, biogas is distinct from other renewable energies because of its characteristics of using, controlling and collecting organic wastes and at the same time producing fertilizer and water for use in agricultural irrigation (Memon. et al., 2012). Biogas does not have any geographical limitations nor does it require advanced technology for producing energy, also it is very simple to use and apply. Deforestation is a very big problem in developing countries like India, most of the part depends on charcoal and fuel-wood for fuel supply which requires cutting of forest (Regassa, et al., 2011). Also, due to deforestation It leads to decrease the fertility of land by soil erosion. Use of dung, firewood as energy is also harmful for the health of the masses due to the smoke arising from them causing air pollution. We need an ecofriendly substitute for energy (Fisher, et al., 1983).

Biogas typically refers to a gas produced by breakdown of organic matter in the absence of oxygen. Organic waste such as dead plant and animal material, animal feces, and kitchen waste can be converted into a gaseous fuel called biogas (Gelegenis, et al., 2007). Biogas originates from biogenic material and is a type of bio fuel. Biogas is produced by the anaerobic digestion or fermentation of biodegradable materials such as biomass, manure, sewage, municipal waste, green waste, plant material, and crops (Kacprzak, et al., 2010).

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