A stream receives a waste outfall which results in oxygen at saturation levels when mixed. The initial condition right after entry of the waste creates a BOD5 of 40 mg/l. KBOD is 0.3/day and KO2 is 1.3/ day. The stream temperature is 12 degrees centigrade. In terms of travel time when does the maximum DO sag occur? What is the minimum DO concentration in the river at the maximum sag point? If the average stream velocity is 3 feet per minute, what is the downstream location of the DO sag minimum relative to the location of the waste stream? Use the relevant equations provided in the textbook to solve this problem.

A stream receives a waste outfall which results in oxygen at saturation levels when mixed. The initial condition right after entry of the waste creates a BOD5 of 40 mg/l. KBOD is 0.3/day and KO2 is 1.3/ day. The stream temperature is 12 degrees centigrade. In terms of travel time when does the maximum DO sag occur? What is the minimum DO concentration in the river at the maximum sag point? If the average stream velocity is 3 feet per minute, what is the downstream location of the DO sag minimum relative to the location of the waste stream? Use the relevant equations provided in the textbook to solve this problem.

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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