Before discharging the foul sewage into rivers, it is generally treated by Options: A . &nbspScreening B . &nbspSedimentation C . &nbspOxidation D . &nbspAll the above

Before discharging the foul sewage into rivers, it is generally treated by

Question

Before discharging the foul sewage into rivers, it is generally treated by

Options:

A . Screening

B . Sedimentation

C . Oxidation

D . All the above

Answer: Option D

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