The wastewater contains 7.5 x 105 fecal CFU per liter. The permissible fecal coliform concentration is 3500 fecal coliform CFU/L. Calculate the length of pipe required if the linear velocity of the wastewater pipe is 0.73 m/s. Take the reaction rate constant for the destruction of the fecal coliform is 0.21 per min.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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The wastewater contains 7.5 x 105 fecal CFU per liter. The permissible fecal coliform concentration is 3500 fecal coliform CFU/L. Calculate the length of pipe required if the linear velocity of the wastewater pipe is 0.73 m/s. Take the reaction rate constant for the destruction of the fecal coliform is 0.21 per min.

Expert Solution
Step 1

Given:

Initial coliform concentration, Co = 7.5 x 105 CFU/L

Maximum permissible coliform concentration, C = 3500 CFU/L

Linear velocity of pipe, v = 0.73 m/s

Reaction rate constant, k = 0.21 min-1

Step 2

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