Use of chlorine in the treatment of sewage

Solution(By Examveda Team)

The use of chlorine in the treatment of sewage Option D: Aids in flocculation.

Chlorine is often used in the treatment of sewage and wastewater as a disinfectant.
It helps in killing harmful bacteria and pathogens in the sewage, making it safer for disposal or discharge into water bodies.
One of the ways chlorine achieves this is by aiding in flocculation. Flocculation is the process of causing small particles in the sewage to come together and form larger, easily settleable particles called flocs.
These flocs can then be more effectively removed through sedimentation and filtration, leading to cleaner water.

So, the correct answer is Option D: Aids in flocculation.