Question

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

This question was addressed to me during an interview.

The doubt is from Effects and Control Measures of Marine Pollution topic in chapter Environmental Pollution of Energy Management

Answer 1

Correct option is (c) Grit chamber

For explanation: The place where lighter and organic material settles in the primary treatment of sewage plant is called as grit chamber. This chamber comes after the screening of influent by removing the pollutants.