Saturday, December 3, 2016

Produce And Usage Of Biogas



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Nowadays, people began to realize the importance of energy and natural resources saving . Natural resources that are currently of concern is water and energy. Campaign for water saving and environmentally friendly waste management had been started couple years ago. Similarly had been done to energy. Especially the use of fossil fuel as a fuel.


This writing will discuss a little bit about the use of alternative energy instead of the energy that has already widely used fossil fuel. As a fuel, fossil fuel can be replaced by biogas. Biogas is a gas released in the process of decomposition of the faeces of Animal Kingdom including humans. According to various sources, stool of herbivorous will be the best in producing biogas. In addition to livestock and human faeces, biogas can also be produced through fermentation and decomposition of organic wastes.

The main principle of formation of the biogas is to collect faeces and other organic waste into the tank. This tank can be made of plastic, metal or cement and bricks. Collection tank or faeces and other organic waste is referred as the digester and supposed to be airtight.

In the digester, organic waste will be decomposed and fermented by fermentative bacteria, acetogenic bacteria and methane bacterial groups . The gas produced from this decomposition and fermentation will be accommodated within the digester. Digester gas buildup will lead to a difference in the outside air pressure so that the gas can be flowed through a hose or pipe to be used as a direct fuel or electricity generation.


Biogas that has been produced is very good for burning because it produces high heat, no smell, no smoke and produce blue flame. Faeces that has been taken its biogas is also very good to be used as manure as its organic matter content increases.

Biogas can be produced on the fourth or fifth day after the digester is fully charged. Discharge process of biogas from faeces and other organic waste will reach its peak at the day of twenty to twenty five. The most important component of biogas is methane. The content of methane contained in the biogas reached 54% to 70%. In addition, biogas also contains carbon dioxide by about 27% to 45%, nitrogen is about 3% to 5%, hydrogen 0% to 1%, about 0.1% carbon monoxide and oxygen content of 0.1%, and small amounts of hydrogen sulfide as well.

Thus the initial review of the biogas as an attractive energy source in this modern era. In subsequent writings the writer will try to explore this further, both as a fuel and as a power plant. Hopefully.



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pict by Sribudi Astuti

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