Que.

Steps in rapid sand filters used for water purification are all EXCEPT:

  • A. Backwashing
  • B. Coagulation
  • C. Rapid mixing
  • D. Flocculation

Right Answer is :
✓ A. Backwashing
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Sumit Chaurasiya
Sumit Chaurasiya on 01-09-22 4:14 pm

How

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Sumit Chaurasiya
Sumit Chaurasiya on 01-09-22 4:15 pm

Explain the term

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