Water filtration rate in a slow sand filter ranges from __________ litres/m²/hr. Options: A . &nbsp10 to 20 B . &nbsp100 to 200 C . &nbsp1500 to 2500 D . &nbsp4000 to 5000

Water filtration rate in a slow sand filter ranges from _________

Question

Water filtration rate in a slow sand filter ranges from __________ litres/m²/hr.

Options:

A . 10 to 20

B . 100 to 200

C . 1500 to 2500

D . 4000 to 5000

Answer: Option B

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