Question
Twenty-six million gallons per day of wastewater with a DO of 1.00 mg/Lis discharged into a river with a DO of 6.00 mg/L. If the flow rate of the river is 165 × 10° gal/d and saturation value of dissolved oxygen is 9.17 mg/L,what is the oxygen deficit after compete mixing of the two flows? a. 3.9 mg/L b. 6.0 mg/ с. 4.
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