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The following data on DO5* are obtained in the BOD test of a domestic wastewater, which is run at three different dilution levels. What conclusions can be drawn from the experimental results? a. DO5* is equal to DO1**.   b. A white precipitate is observed during the measurement of DO5*.   c. DO5 is measured as 0.5 mg/L.   * DO1: dissolved oxygen concentration at day one (before incubation) ** DO5: dissolved oxygen concentration at the fifth day of incubation

The following data on DO5* are obtained in the BOD test of a domestic wastewater, which is run at three different dilution levels. What conclusions can be drawn from the experimental results? a. DO5* is equal to DO1**.   b. A white precipitate is observed during the measurement of DO5*.   c. DO5 is measured as 0.5 mg/L.   * DO1: dissolved oxygen concentration at day one (before incubation) ** DO5: dissolved oxygen concentration at the fifth day of incubation

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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The following data on DO5* are obtained in the BOD test of a domestic wastewater, which is run at three different dilution levels. What conclusions can be drawn from the experimental results?

a. DO5* is equal to DO1**.

 

b. A white precipitate is observed during the measurement of DO5*.

 

c. DO5 is measured as 0.5 mg/L.

 

* DO1: dissolved oxygen concentration at day one (before incubation)

** DO5: dissolved oxygen concentration at the fifth day of incubation

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