Science, asked by rajugawande967, 3 months ago

Enviromental management mcQ type question

Answers

Answered by prabhakardeva657
25

What is the first step in primary sewage treatment plants?

a) Fine screening

b) Course screening

c) Chlorination

d) Primary settling tank

What is called for the removal of sand, gravel in the primary treatment of sewage treatment plant?

a) Course screening

b) Fine screening

c) Grit removal

d) Chlorination

What is called for the place where lighter, organic material settles in the primary treatment of sewage plant?

a) Primary settling tank

b) Secondary settling tank

c) Grit chamber

d) Coursing chamber

Where can we find rotating arm sprays in sewage treatment?

a) Primary treatment

b) Secondary treatment of trickling filter

c) Secondary treatment of activated sludge process

d) Secondary process of oxidation pool

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