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:In cultivation of E.coli strain in a batch stirred and aerated tank, a static gassing out technique
method was employed to determine the oxygen transfer coefficient (k̟a) for the bioreactor.
After purging the oxygen with nitrogen gas, continuous air supply at air flow rate of 0.1
v.v.m. and impeller speed of about 250 rpm was initiated. Increase in the dissolved oxygen
concentration upon the continuous air sparging is recorded by a dissolved oxygen (DO)
probe. Using the following data, determine the oxygen transfer coefficient (ka) for the
bioreactor. Saturation DO concentration is C*=9 mg/l
Time (minute)
Cl (mg/l)
1
1
2
3
2.5
4
3
5
4
6.5
5
7.2
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