Science, asked by surajpal8182, 4 months ago

3. In the last step, the waste water is treated with:
$oxygen$
$nitroen$
$carbon dioxide$
Chalorine

Answers

Answered by dkhokher133

0

Answer:

Treatment Steps

Step 1: Screening and Pumping. ...

Step 2: Grit Removal. ...

Step 3: Primary Settling. ...

Step 4: Aeration / Activated Sludge. ...

Step 5: Secondary Settling. ...

Step 6: Filtration. ...

Step 7: Disinfection. ...

Step 8: Oxygen Uptake.

Explanation:

Hope the answer is helpful to you..

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