A raw wastewater is chlorinated before discharging into the environment. Due to potentially high counts of Fecal Coliform present in the raw wastewater, it was prediluted 10 times before carrying out MPN tests. The findings obtained from MPN tests are shown below: Sample 1 2 3 Dilution 10 1 0.1 Positive tube 5 3 5 You are asked to determine the expected killing efficiency of the chlorination proces: so that the treated wastewater can fulfill the discharge standard of 50 CFU/100mL.
A raw wastewater is chlorinated before discharging into the environment. Due to potentially high counts of Fecal Coliform present in the raw wastewater, it was prediluted 10 times before carrying out MPN tests. The findings obtained from MPN tests are shown below: Sample 1 2 3 Dilution 10 1 0.1 Positive tube 5 3 5 You are asked to determine the expected killing efficiency of the chlorination proces: so that the treated wastewater can fulfill the discharge standard of 50 CFU/100mL.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:A raw wastewater is chlorinated before discharging into the environment. Due to
potentially high counts of Fecal Coliform present in the raw wastewater, it was
prediluted 10 times before carrying out MPN tests. The findings obtained from MPN
tests are shown below:
Sample
1
2
3
Dilution
10
1
0.1
Positive tube
5
3
5
You are asked to determine the expected killing efficiency of the chlorination process
so that the treated wastewater can fulfill the discharge standard of 50 CFU/100mL.
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