4.6 Poorly treated municipal wastewater is discharged to a stream. The river flow rate upstream of the discharge point is Qu = 8.7 m³/s. The discharge occurs at a flow of Q₁ = 0.9 m³/s and has a BOD concentration of 50.0 mg/L. Assume 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 is the BOD concentration 50 km downstream? (BOD is removed with a first-order decay rate constant equal to 0.20/day.)

4.6 Poorly treated municipal wastewater is discharged to a stream. The river flow rate upstream of the discharge point is Qu = 8.7 m³/s. The discharge occurs at a flow of Q₁ = 0.9 m³/s and has a BOD concentration of 50.0 mg/L. Assume 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 is the BOD concentration 50 km downstream? (BOD is removed with a first-order decay rate constant equal to 0.20/day.)

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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