Question

Why is biogas considered an ideal domestic fuel?

Answer 1

Biogas: Biogas is produced by the degradation of biomass like animal waste, plant waste, and human waste in a container (called a digester) in the absence of air.

Explanation: Biogas comprises two major gases: methane and carbon dioxide. Carbon dioxide usually constitutes 25%, and methane constitutes 75% of the biogas. Since the methane is in higher concentration, the biogas is clean and does not emit smoke.

The reasons behind biogas being an ideal fuel for domestic use are listed below.

• Biogas is a clean fuel and is smoke-free.
• The biogas has a high calorific value.
• The cost of biogas is comparatively lower than other fuels.
• The biogas is ash-free and clean.