Question

Why is wastewater passed through bar screens in a wastewater treatment plant?

• A. To remove dissolved chemicals
• B. To stop the flow of insects
• C. To remove the large objects
• D. To remove microbes

Answer 1

The correct option is C

To remove the large objects

In a wastewater treatment plant, the wastewater is passed through bar screens. Large objects like plastics, rags, cans, etc are filtered in this process. This process is also known as screening.
Screening is the first stage of a wastewater treatment process.