Question

Explain the principle and working of a biogas plant.CBSE Class X Science SA 2 (3 Marks)

Answer 1

Principle :
Biogas is produced as a result of anaerobic fermentation of biomass in the presence of water.
______________________________________________________________
Working :
1. formation of slurry by mixing of cow dug .
2. The fermentation of slurry starts in the digester and biogas is formed
3.increase in the volume of slurry in inlet and out let .  
4.If you want to use the biogas, you can open the valve of the gas pipe and remove bio gas 

Answer 2

"Principle of the Biogas production:

Biogas is produced through the "anaerobic fermentation" process in the "presence of water".

Working of the Biogas production:

  1. The biomass is mixed with "cow dung" and "water" in the tank to form a slurry.

  2. The slurry is injected into the digester chamber.

  3. The digester chamber is kept for fermentation for nearly two months without any disturbance.

  4. Only by the end of the two months, the biogas is formed.

We can use the biogas for cooking or some other purposes. We can also remove the formed biogas in the regular interval of period."