engineering recuitment GATE CE 2023-24 Test Series Environmental Engineering Quality and Characteristics of Sewage
If the BOD5(25oC) of the mixture of river water and sewage is 30 mg/l and initial dissolved oxygen deficit of the mixture is 0.6mg/l, then the critical oxygen deficit would be _______ mg/l, if KD (20oC) = 0.21 and the self-purification constant is 4.25.
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