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Calculate the theoretical oxygen requirement for the following details. Flow: 200 m3/h BOD load: 800 mg/L

Calculate the theoretical oxygen requirement for the following details. Flow: 200 m3/h BOD load: 800 mg/L Correct Answer 23.05 Kg/h of O2/hr

BOD load in Kg/day = Inlet BOD in mg/l x Flow in m3/day /1000 =800 x 200 / 1000=160 Kg/day. Theoretical oxygen requirement = BOD load x Kg of O2/Kg of BOD= 160 x 1.8 = 288 Kg of O2/day. Standard O2 Requirement = Theoretical O2 requirement/ Alpha x x Theta(Tww-20°C)/ Css= 288/24/ x 1.024(30-20)]/9.86=23.05 Kg of O2/hr.

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