Question

The town discharges 17360 m 3 /d of treated wastewater into the river. The treated wastewater has a bod5 of 12 mg/l and a k of 0.12 d-1 at 20

c. The river has flow rate of 0.43 m3/s and an ultimate bod of 5.0 mg/l. The do of the river is 6.5 mg/l and the do of the wastewater is 1.0 mg/l. Compute the do and initial ultimate bod after mixin

Answer 1

I don't know sorry

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Answer 2

Answer:

do-4.75

bod of treated wastewater= 26.6

bod after mixing=11.86