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Phase separated membrane bioreactor - Results from model system studiesThe operation and evaluation of a bioreactor designed for high intensity oxygen transfer in a microgravity environment is described. The reactor itself consists of a zero headspace liquid phase separated from the air supply by a long length of silicone rubber tubing through which the oxygen diffuses in and the carbon dioxide diffuses out. Mass transfer studies show that the oxygen is film diffusion controlled both externally and internally to the tubing and not by diffusion across the tube walls. Methods of upgrading the design to eliminate these resistances are proposed. Cell growth was obtained in the fermenter using Saccharomyces cerevisiae showing that this concept is capable of sustaining cell growth in the terrestrial simulation.
Document ID
19900028392
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Petersen, G. R.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Seshan, P. K.
(JPL Pasadena, CA, United States)
Dunlop, E. H.
(Colorado State University Fort Collins, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1989
Publication Information
Publication: Natural and Artificial Ecosystems, Espoo, Finland, July 18-29, 1988) Advances in Space Research
ISSN: 0273-1177
Subject Category
Man/System Technology And Life Support
Accession Number
90A15447
Distribution Limits
Public
Copyright
Other

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