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ICSE Class 10 Geography Question 19 of 25

Non-Conventional Sources of Energy — Question 21

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Question 6(a)

Figure 1 is a picture of a biogas plant. Briefly explain how biogas is generated.

Figure 1 is a picture of a biogas plant. Briefly explain how biogas is generated. Chapter 13 Non-Conventional Sources Of Energy, Total Geography ICSE Class 10
Answer

Biogas is produced by the anaerobic decomposition of animal and plant waste in the presence of water. In this oxygen-free environment, bacteria break down the waste and release methane-rich gas. The mixture is fed into an underground digester tank through an inlet pipe. As bacteria ferment the waste, biogas is collected through a gas outlet, while the leftover slurry is removed via an outlet pipe.