A town is required to treat 4.2 m3/min of raw water for daily domestic supply.

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A town is required to treat 4.2 m3/min of raw water for daily domestic supply. Flocculating particles are to be produced by chemical coagulation. A column analysis indicated that an overflow rate of 0.2 mm/s will produce satisfactory particle removal in a settling basin at a depth of 3.5 m. The required surface area (in m2) for settling is

Options:

A . 210

B . 350

C . 1728

D . 21000

Answer: Option B

-NA-

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