Question

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Consider the following:

1. Sedimentation
2. Coagulation
3. Filtration

Which of the above are measures for primary treatment of waste water?

• A.
  1 and 3 only
• B.
  1 and 2 only
• C.
  2 and 3 only
• D.
  1, 2 and 3

Answer 1

The correct option is D

1, 2 and 3
<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Primary Treatment: When the water waste is to be dumped off into a water body, the treatment is carried out by sedimentation, coagulation and filtration.