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A 10^6 litres/day conventional activated sludge plant has an effluent BOD of 200 mg/L. the primary settler removes 30% of that BOD. The plant is

A 10^6 litres/day conventional activated sludge plant has an effluent BOD of 200 mg/L. the primary settler removes 30% of that BOD. The plant is equipped with an aeration tank of dimensions 18 m long 5 m wide 3 m deep. The MLVSS conc. is maintained at 1600 mg/L. Calculate the aeration period and the F/M ratio.

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