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Appl Environ Microbiol. 1994 August; 60(8): 2711-2716
Copyright © 1994, American Society for Microbiology. All Rights Reserved.

Liquid Flow in Biofilm Systems

Paul Stoodley, Dirk DEBeer and Zbigniew Lewandowski*

1 Center for Biofilm Engineering, Montana State University, Bozeman, Montana 59717

ABSTRACT

A model biofilm consisting of Pseudomonas aeruginosa, Pseudomonas fluorescens, and Klebsiella pneumoniae was developed to study the relationships between structural heterogeneity and hydrodynamics. Local fluid velocity in the biofilm system was measured by a noninvasive method of particle image velocimetry, using confocal scanning laser microscopy. Velocity profiles were measured in conduit and porous medium reactors in the presence and absence of biofilm. Liquid flow was observed within biofilm channels; simultaneous imaging of the biofilm allowed the liquid velocity to be related to the physical structure of the biofilm.

FOOTNOTES

* Corresponding author. Phone: (406) 994 4770. Fax: (406) 994 6098.

Appl Environ Microbiol. 1994 August; 60(8): 2711-2716
Copyright © 1994, American Society for Microbiology. All Rights Reserved.



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