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NEETZoologyMicrobes in Human Welfare

What is the spent slurry from the biogas plant used for?

Options

  1. AFuel
  2. BFertilizer
  3. CLighting
  4. DCooking

Correct answer

B. Fertilizer

Step-by-step solution

The biogas plant consists of a concrete tank (10-15 feet deep) in which bio-wastes are collected and a slurry of dung is fed. A floating cover is placed over the slurry, which keeps on rising as the gas is produced in the tank due to the microbial activity and prevents it from escaping.The biogas plant has an outlet, which is connected to a pipe to supply biogas to nearby houses. The spent slurry is removed through another outlet and may be used as fertiliser. Cattle dung is available in large quantities in rural a

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