What are the major constituents of biogas? How is it obtained from animal or plant wastes? What is the
advantages of the biogas
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Major Components of Biogas are:
- Methane (55 - 65%)
- Carbon dioxide (30 - 40%)
- Hydrogen Sulphide
- Water vapour
Production of Biogas:
- Hydrolysis: The organic matter (plant and animal waste) hydrolysed enzyme matically bye the enzymes released by the microorganisms into smaller, simpler molecules.
- Fermentation: Acid producing, anaerobic microorganisms break down the intermediate components into father simple compounds and produces volatile acids, alcohol, amino acids and carbon dioxide.
- Methane formation: Methanobacteria (methane producing bacteria) decompose the compounds in the earliest stages to produce methane ( the main component in biogas)
Advantages of biogas:
- Biogas renewable source of energy, that can be produced locally and supplied to the nearby houses for domestic needs.
- Very less emission of greenhouse gases like carbon dioxide and nitrous oxide.
- Efficient way to recycle organic waste from households and industries.
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