Select the correct statement from the following - Vidyadip

MCQ

Select the correct statement from the following

✓
Activated sludge sediment in settlement tanks of sewage treatment plant is a rich source of aerobic bacteria
B
Biogas is produced by the activity of aerobic bacteria on animal wastes
C
Methanobacteriumis an aerobic bacterium found in rumen of cattle
D
Biogas, commonly called gobar gas is pure methane

✓

Answer

Correct option: A.

Activated sludge sediment in settlement tanks of sewage treatment plant is a rich source of aerobic bacteria

a
Activated sludge sediment in settlement tanks of sewage treatment plant is a rich source of aerobic bacteria. In activated sludge system. The primary efflument is taken to aeration tank. In side the aeration tank, several aerobic microbes (bacteria, Protozoa, micro fungi and micro algae) are employed to consume a major part of organic matter

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