In the waste water treatment plant (WWTP), air is pumped into water to
A
Support the growth of anaerobic bacteria
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B
Support the growth of aerobic bacteria
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C
Disinfect water
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D
Throw human waste
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Solution
The correct option is C Support the growth of aerobic bacteria Aeration is the addition of oxygen to waste water. Aeration chambers are used in packaged and extended aeration plants to provide an aerobic environment for the bacteria which involves the breakdown of the organic matter. It degrades the complex molecules into the simpler molecules which forms flocs that can be easily removed during the further treatment.