3. Just below the point where a continuous discharge of pollution mixes with a river, the BOD is 10.9 mg/L, and DO is 7.6 mg/L. The river and waste mixture has a temperature of 20°C, a deoxygenation constant kd of 0.20/day, an average flow speed of 0.30 m/s, and a average depth of 3.0 m. a. Find the time and distance downstream at which the oxygen deficit is at a maximum. b. Find the minimum value of DO.

3. Just below the point where a continuous discharge of pollution mixes with a river, the BOD is 10.9 mg/L, and DO is 7.6 mg/L. The river and waste mixture has a temperature of 20°C, a deoxygenation constant kd of 0.20/day, an average flow speed of 0.30 m/s, and a average depth of 3.0 m. a. Find the time and distance downstream at which the oxygen deficit is at a maximum. b. Find the minimum value of DO.

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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