A waste water effluent of 560 lls with a BOD = 50 mgll, DO = 3.0 %3D mg/l and temperature of 23°C enters a river where the flow is 28 m3 /sec, and BOD = 4.0 mg/l, DO = 8.2 mgll, and temperature of 17°C. k, of the waste is 0.10 per day at 20°C. The vel. of water in the river downstream is 0.18 m/s and depth of 1.2 m. Determine the following after mixing of waste water with the river water : (i) Combined discharge; %3D %3D (ii) BOD ; (iii) DO ; and (iv) Temperature.

A waste water effluent of 560 lls with a BOD = 50 mgll, DO = 3.0 %3D mg/l and temperature of 23°C enters a river where the flow is 28 m3 /sec, and BOD = 4.0 mg/l, DO = 8.2 mgll, and temperature of 17°C. k, of the waste is 0.10 per day at 20°C. The vel. of water in the river downstream is 0.18 m/s and depth of 1.2 m. Determine the following after mixing of waste water with the river water : (i) Combined discharge; %3D %3D (ii) BOD ; (iii) DO ; and (iv) Temperature.

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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