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Calculate the BOD value for the sample below including the minimum depletion and residual requirements. Sample (ml)-100ml in 300ml bottle Initial D.O (mg/ml): 9.2 5-days D.O (mg/ml): 5.3

Calculate the BOD value for the sample below including the minimum depletion and residual requirements. Sample (ml)-100ml in 300ml bottle Initial D.O (mg/ml): 9.2 5-days D.O (mg/ml): 5.3 Correct Answer 9.75

Given, Sample (ml) – 100ml in 300ml bottle Initial D.O (mg/ml): 9.2 5-days D.O (mg/ml): 5.3 BOD (mg/ml) = D.O depletion/volume sample(ml)*300ml=initial D.O-final D.O/volume sample(ml) =9.2-5.3/100*250=9.75.

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