Calculate the area of the rapid sand filter for the following details. Flow: 20

Question - Calculate the area of the rapid sand filter for the following details.
Flow: 2000 m³/h.
Velocity: 5 m/h
Backwash time: 30 mins

Options:

A . 18 m²

B . 20 m²

C . 22 m²

D . 16 m²

Answer: Option A
Answer: (a).18 m²

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