Problem

The combined BODl in a stream mixed with sewage effluent is 25 mg/L. The stream reaeration...

The combined BODl in a stream mixed with sewage effluent is 25 mg/L. The stream reaeration rate is found to be 0.4/d, and the deoxygenation constant is assumed to be 0. 1/d. The initial combined DO in the stream is 8.0 mg/L, and the DO saturation level is 11 mg/L. Compute the minimum DO level in the stream due to the sewage discharge.

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