Determine what is the bod 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's effluent pipe is 75 mg/L. If the BOD is destroyed by a first order reaction with rate constant equal to 0.05/day, what is the BOD concentration 50 km downstream? The velocity of the river is 15 km/day.

Reference no: EM13304123

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