What is the rod concentration 50 km downstream

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The concentration of BOD (an indicator of organic pollution) in a river just downstream of a sewage-treatment plant effluent pipe is 75 mg/L^-1 . If the BOD is destroyed through a first-order reaction with rate constant equal to 0.05/day^-1 , what is the ROD concentration 50 km downstream? The velocity of the river is 15 km/da^y-1 .

Reference no: EM131253278

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