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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
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B

1 and 2 only
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C

2 and 3 only
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D

1, 2 and 3
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Solution

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.

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