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Mixing and oxygen transfer in conventional stirred fermentors
Author(s) -
Manfredini R.,
Cavallera V.,
Marini L.,
Donati G.
Publication year - 1983
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.260251224
Subject(s) - mixing (physics) , oxygen , chemistry , organic chemistry , physics , quantum mechanics
A set of experiments has been performed in an industrial 112 m 3 fermentor in order to get a complete map of oxygen concentration and temperature distribution in the system. Five fermentations of non‐Newtonian broths of two different strains, in various operating conditions, were examined. A simple model has been developed which takes into account both the mixing and the mass‐transfer properties of the fermentor, and a dimensionless parameter has been identified which is sufficient to characterize the oxygen axial distribution in the reactor in any operating condition.