Biology, asked by Anonymous, 3 months ago

what are the four stages in the treatment of sewage?

Answers

Answered by muskan10453

0

Explanation:

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.

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