Question

- B
Given below is a figure of a biogas plant.
Dunl Water
A
с
(a) Identify A and justify its floating nature.
(b) Identify the products B and C and discuss
their significance.
[1+2=3]
Digester
A typical blogas plant​

Answer 1

Answer:

(a) A is the floating cover which is placed over the slurry, which keeps on rising as the gas is produced in the tank due to the microbial activity. (b) B is that biogas which is a mixture of gases consisting of methane, hydrogen sulphide and carbon dioxide. It can be used as a source of energy to nearby houses as it is inflammable. C is the spent slurry or sludge which is removed through another outlet and may be used as fertilizer