Help DISCUSSION: Critical Point of Three RiversSuppose there are three rivers (River A, River B, and River C) that have the same characteristics (e.g., flow rate, DOsat). Each river receives the effluent of wastewaterfrom a treatment plant, and the critical point is determined to be the following:For River A, the critical point is 20 km from the discharge point.For River B, the critical point is 22 km from the discharge point.For River C, the critical point is 24 km from the discharge point.Which river receives effluent that is the most treated?

Answered: Suppose there are three rivers (River…

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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DISCUSSION: Critical Point of Three Rivers
Suppose there are three rivers (River A, River B, and River C) that have the same characteristics (e.g., flow rate, DOsat). Each river receives the effluent of wastewater
from a treatment plant, and the critical point is determined to be the following:
For River A, the critical point is 20 km from the discharge point.
For River B, the critical point is 22 km from the discharge point.
For River C, the critical point is 24 km from the discharge point.
Which river receives effluent that is the most treated?

Expert Solution

Step 1

Given:

Critical point for river A = 20 km

Critical point for river B = 22 km

Critical point for river C = 24 km

River A, River B and River C have the same flow rate and same Dissolved oxygen(DO).

Critical point: The critical point of a river is the location downstream from the discharge point where the concentration of dissolved oxygen in the river reduces beyond a certain minimum limit. This point is used to assess the effectiveness of wastewater treatment plants and determine if they are meeting the required standards for water quality. In the given question, the critical point is used to compare the quality of effluent discharged from three different treatment plants that discharge into three different rivers.

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