Question

In the waste water treatment plan air is pumped into water to

• A. Support the growth of anaerobic bacteria
• B. Support the growth of aerobic bacteria
• C. Disinfect water
• D. Blow human waste

Answer 1

The correct option is B

Support the growth of aerobic bacteria

The correct option is B

Explanation of the correct option :

1. The wastewater treatment plant has been set up in order to reduce the entry of pollutants from the industries into the water bodies.
2. The activated sludge method is used in the treatment of wastewater.
3. The air promotes the growth of aerobic bacteria and other organisms which help in the breakdown of the organic matter which is present in the wastes.

Final answer: In the wastewater treatment plant air is pumped into the water to support the growth of aerobic bacteria.