Engineering Fundamentals
Engineering Fundamentals
6th Edition
ISBN: 9780357112144
Author: Saeed Moaveni
Publisher: MISC PUBS
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Chapter 15, Problem 37P
To determine

Execute the given MATLAB code and show the result or indicate an error occurred by executing the command.

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6. If the initial DO concentration of a diluted (1/50) wastewater sample is 9.0 mg/L and the UO concentration decreases to 2.4 mg/L after 5 days of incubation, a. calculate the 5-day BOD concentration in mg/L: b. If the wastewater degrades at a rate of 0.22/day, what is the ultimate BOD concentration? c. Based on the k value in part (b), what would the BOD concentration be after 10 days? d. What other factor may influence the BOD that is not accounted for in part (c)?
2nYour consulting firm is doing an expansion project for a drinking water treatment plant in a growing urban area that has a current population of 55,000 people and treats 20 MGD. If there is 2.8% population growth, continuously compounded, and you want the expansion to be able to serve the urban area for the 35 year design life of the upgraded facility, what should the new design capacity (in MGD) of the treatment plant be?
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