Engineering, 06.05.2020 04:42 ranaaf

A wastewater plant discharges a treated effluent (w) with a flow rate of 1.1 m3/s, 50 mg/L BOD5 and 2 mg/L DO into a river (s) with a flow rate of 8.7 m3/s, 6 mg/L BOD5 and 8.3 mg/L DO. Both streams are at 20 oC. After mixing, the river is 3 meters deep and flowing at a velocity of 0.50 m/s. DOsat for this river is 9.0 mg/L. The deoxygenation constant is kd= 0.20 d-1 and The reaction rate constant k at 20 °C is 0.27 d-1. a) Find the initial DO deficit (D0) after mixing, (units:

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A wastewater plant discharges a treated effluent (w) with a flow rate of 1.1 m3/s, 50 mg/L BOD5 and...

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