A wastewater is to be disinfected with 50 mg/L of chlorine to obtain 98.5 % kill of micro-organisms. It follows Chick’s Law. If the depth, width and length of chlorination tank are 1.5 m, 1.0 m and 9 m respectively. The water is entering into the tank at one fourth of the length of the tank from the starting end of the tank. Then the wastewater flow rate is ______ (in m3/h, round off to 2 decimal places) .( K = 0.23 min-1)
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