Aeration of Water is Done to Remove

Answer: A. Odour

Aeration of water is done to remove odour.

In the aeration process, water is in contact with air. As a result of this, dissolved gases, grease, and oil are removed.It is done by following methods:-

1. Spray nozzle method
2. Cascade method
3. Tray tower method
4. Diffused air method

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