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Oxygen absorption in microbiological systems of zero order reaction rate
Author(s) -
Tsao George T.
Publication year - 1970
Publication title -
biotechnology and bioengineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.136
H-Index - 189
eISSN - 1097-0290
pISSN - 0006-3592
DOI - 10.1002/bit.260120105
Subject(s) - oxygen , absorption (acoustics) , chemistry , diffusion , zero order , absorption rate , reaction rate , order of reaction , thermodynamics , analytical chemistry (journal) , kinetics , first order , reaction rate constant , chromatography , materials science , organic chemistry , mathematics , physics , catalysis , classical mechanics , composite material
A model of oxygen absorption in microbiological systems of zero order reaction rate is proposed. The partial differential equation was solved to predict the profile of the oxygen concentration boundary layer next to a gas‐liquid interface. Generally speaking, the presence of microbial cells always helps to increase the oxygen absorption rate over that of physical absorption. Only when the microbiological reaction is slow as judged by the fact that the reaction time, t r , is much larger than the diffusion time, t D , can one rightfully approximate the oxygen absorption in microbiological suspensions by physical absorption.