Disadvantages Of Biogas

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CHAPTER ONE 1.0 INTRODUCTION Renewable energy resources are being used now days as the major contributors to global energy demand. The most common forms of renewable energy considered are solar, geothermal, water, wind and finally the biomass related energy such as biogas. Some of the most important benefits of using renewable energy are based on organic composition, lack of fossil derived CO2 emission, and the use of mainly locally available inexpensive resources and the fact that they are the best solutions covering directly the need of the local community (Popescus, 2010). Biogas is a combustible mixture of gases. It consists of mainly of methane (CH4) and carbon dioxide (CO2) and is formed from the anaerobic bacteria decomposition of organic compound, i.e. without presence of oxygen. The gases formed are the waste products of the respiration of these decomposer microorganisms and the decomposition of the gases depend on the substance that is being decomposed. If the material consists of carbohydrate such as glucose and other sample sugar also high molecular compounds (polymer) such as cellulose and hemicelluloses, the methane produced is low. However, if the fat content is high, the methane production…show more content…
The decomposition of organic matter in the absence of oxaygen produces biogas. For typical biogas systems, this organic matter can include manure or plant substrates like crops or food waste like fruit peels. These inputs are put into anaerobic digester where microbes in the presence of heat and absence of oxygen break down organic matter and produce biogas (composed of methane and other gases). The solids that have been digested are also the product of anaerobic

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