The normal values of over flow rates for secondary sedimentation tanks...

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The normal values of over flow rates for secondary sedimentation tanks, ranges between

A. 25,000 to 35,000 litres/sqm/day

B. 40,000 to 50,000 litres/sqm/day

C. 50,000 to 60,000 litres/sqm/day

D. 80,000 to 10,000 litres/sqm/day

Answer: Option A

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