Question

What is biogas? Describe the working of a biogas plant with the help of a labelled diagram. S’

Answer 1

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☆Biogas

Gas made from the anaerobic digestion of agricultural and animal waste is called biogas. When this biomass (agriculture and animal waste) is decomposed in the absence of oxygen, it releases biogas.

In India, biogas is commonly known as “gobar gas”. Biogas is a mixture of methane (75%) and CO2. It is used for cooking, lighting of lamps, generating electricity, etc. In “landfills”, biomass rots and releases methane gas through the process of biodegradation.

☆Biodegradation is the process of biological degradation of organic matter by bacteria and fungi.

☆Biogas production

Biogas technology provides an alternate source of energy in rural India. It is a more efficient and developed form of fuel.

It uses a thick mixture of cattle waste and kitchen garbage. This is fed into an inlet chamber. The micro organisms present in the digester tank are mainly methanogens.



These methanogens decompose the organic waste (slurry) anaerobically to produce methane and some carbon dioxide. This process is called biodegradation.
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Answer 2

bio gas is a plant in which biodegradable waste are mixed with water and converted in to slurry which is then send into digester where bacteria decomposes it and many gases are evolved during this process like...H2, methane, etc...