The minimum flow of a river is 50 m³/s having a dissolved oxygen (DO) content of 7 mg/1 (80% saturation) and BOD5 of 8.0 mg/l. It receives a wastewater discharge of 5 m³/s with BOD5 of 200 mg/l and no DO. The rate constants for deoxygenation and reaeration (both at base e) are 0.5d-¹ and 1.0d-¹, respectively and the velocity of river flow is 0.8 m/s. Calculate the distance (in km) downstream from the point of wastewater where the minimum DO occurs.

The minimum flow of a river is 50 m³/s having a dissolved oxygen (DO) content of 7 mg/1 (80% saturation) and BOD5 of 8.0 mg/l. It receives a wastewater discharge of 5 m³/s with BOD5 of 200 mg/l and no DO. The rate constants for deoxygenation and reaeration (both at base e) are 0.5d-¹ and 1.0d-¹, respectively and the velocity of river flow is 0.8 m/s. Calculate the distance (in km) downstream from the point of wastewater where the minimum DO occurs.

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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