An agricultural runoff diversion system discharges into a small river. The runoff has thefollowing characteristics: flow...

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Chemistry

An agricultural runoff diversion system discharges into a smallriver. The runoff has thefollowing characteristics: flow = 100m3/min, DO = 3 mg/L, and BOD = 150 mg/L. The riverflows at1000m3/min and has zero BOD and 9 mg/L of DO. Given that saturation DOis 9.5mg/L, kd is 0.4 day-1, and the ka is 0.7 day-1, calculate theDO and BOD remaining in the stream1.5 days after the dischargeevent.

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