Question

'Biogas is produced by the fermentation of biodegradable wastes'. Mention any three advantages of using biogas.

Answer 1

The term "biogas" refers to a collection of gases produced during the anaerobic breakdown of organic materials such as food waste, plant residue, municipal rubbish, and agricultural waste. Biogas is composed of methane, carbon dioxide, moisture, and trace amounts of hydrogen sulphide.

Advantages of Biogas:

1. Clean energy source: Biogas, produced through bio-digestion, is a renewable, non-polluting, and clean energy source. It actually cuts greenhouse gas emissions. Thus, using waste gas as a source of energy is an excellent strategy to counteract global warming.
2. Non-polluting: Biogas burns without generating smoke, therefore, no hazardous gases such as CO₂, CO, NO₂, or SO₂ are created.
3. Cuts Down on Landfills: The waste product left over from the biogas generation process can be used as manure in fields. There is no need for landfill sites because the disposal method is efficient and safe.
4. Renewable source of energy: Biogas is a renewable source of energy since it is produced from waste, which is an infinite process.