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Secondary Treatment

What happens ...

Question

What happens during the aeration step of water treatment?

A

Amount of oxygen decreases

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B

Amount of oxygen increases

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C

Amount of chlorine decreases

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D

Amount of chlorine increases

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Solution

The correct option is B
Amount of oxygen increases

The amount of oxygen is increased in water during the aeration step of water treatment. Chlorine is added after aeration to sterilize the filtered and aerated water. This process is known as chlorination.

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Q. Which among the following statement is false?
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Q. Which among the following statement is false?
A. Chemisorption is reversible in nature
B. Particle size of adsorbent will not affect the amount of adsorption
C. Increase of pressure increases amount of adsorption
D. Increase of temperature always decreases the amount of adsorption

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