Question

Aeration does not kill the microorganisms.

• A. True
• B. False

Answer 1

The correct option is A True

Step 1 Understanding the concept:

• The amount of oxygen required by bacteria and other microorganisms while decomposing organic matter under aerobic (oxygen present) conditions at a specific temperature is referred to as biochemical oxygen demand (BOD).
• One of the most vital elements of the biological wastewater treatment process is aeration.
• The bacteria are given oxygen through aeration, which allows them to respire quickly and meet their biochemical oxygen demand (BOD).
• This demonstrates that increasing the oxygen concentration during aeration might accelerate microbial growth and so reduce the time required for aerobic digestion.

Step 2 Conclusion: Thus Aeration does not kill the microorganisms is a true statement.