Engineering, 12.11.2019 23:31 eddyreynoso5025

2) poorly treated municipal wastewater is discharged to a stream. the river flow rate upstream of the discharge point is qu/s = 8.7 m3/s. the discharge occurs at a flow of qd = 0.9 m3/s and has a bod concentration of 50.0 mg/l. assuming that the upstream bod concentration is negligible. (a) what is the bod concentration just downstream of the discharge point? (b) if the stream has a cross-sectional area of 10 m2, what would the bod concentration be 50 km downstream? (bod is removed with a first¬-order decay rate constant equal to 0.20/day.)

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2) poorly treated municipal wastewater is discharged to a stream. the river flow rate upstream of th...