NEET
- Exam
- NEET
- Subject
- Zoology
- Chapter
- Microbes in Human Welfare
NEET · Zoology · Microbes in Human Welfare
What is the purpose of floating cover in the biogas plant?
What is the purpose of floating cover in the biogas plant?
Options
- ATo prevent the escape of biogas
- BTo prevent the entry of air into the plant
- CTo keep the slurry warm
- DTo prevent the formation of sludge
Correct answer
A. To prevent the escape of biogas
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.