describ the process of the treatment of water treatment plant to obtain clarified water
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Explanation:
- Wastewater is collected and passed through bar screens where plastic bags, sticks, cans, napkins, etc. are removed.
- This water then enters a grit and a sand removal tank.The speed of the water is decreased so that the sand particles get settled at the bottom. After this, the water is allowed to settle in a large tank which is sloped towards the centre.
- Solid wastes are settled and removed by a scraper. This water is known as clarified water. Air is pumped in this water to help aerobic bacteria to grow.The bacteria consume the wastes by microbial action.
- These microbes settle down after several hours and the water at the top is removed.This water is discharged into rivers and oceans or is put to other uses.
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