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Gas holdup in an external‐loop air‐lift fermentor with a contaminated gas distributor
Author(s) -
McManamey W. J.,
Wase D. A. J.,
Raymahasay S.
Publication year - 1985
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.260270728
Subject(s) - gas lift , distributor , contamination , chemistry , fermentation , chromatography , electrolyte , sodium , bubble , salting out , coalescence (physics) , pulp and paper industry , petroleum engineering , food science , mechanics , aqueous solution , geology , ecology , biology , mechanical engineering , physics , organic chemistry , electrode , astrobiology , engineering
Contamination of the porous‐plate gas distributor was observed in an air‐lift fermentor used for Aspergillus fumigatus fermentations. Comparisons between gas holdups measured with uncontaminated distributors and the contaminated one showed that the contamination had no effect on gas holdups in water but reduced the holdups in sodium chloride and sodium sulfate solutions, probably due to increased bubble coalescence. A correlation for gas holdups with clean distributors 2 could be used to represent the results for the comtaminated distributor by changing the values used for the characteristic velocities of the electrolyte solutions.