Effects of biofilm structures on oxygen distribution and mass transport

dc.contributor.authorde Beer, Dirk
dc.contributor.authorStoodley, Paul
dc.contributor.authorRoe, Frank L.
dc.contributor.authorLewandowski, Zbigniew
dc.date.accessioned2018-01-19T15:52:10Z
dc.date.available2018-01-19T15:52:10Z
dc.date.issued1994-05
dc.description.abstractAerobic biofilms were found to have a complex structure consisting of microbial cell clusters (discrete aggregates of densely packed cells) and interstitial voids. The oxygen distribution was strongly correlated with these strutures. The voids facilitated oxygen transport from the bulk liquid through the biofilm, supplying approximately 50% of the total oxygen consumed by the cells. The mass transport rate from the bulk liquid is influenced by the biofilm structure; the observed exchange surface of the biofilm is twice that calculated for a simple planar geometry. The oxygen diffusion occurred in the direction normal to the cluster surfaces, the horizontal and vertical components of the oxygen gradients were of equal importance. Consequently, for calculations of mass transfer rates a three-dimensional model is necessary. These findings imply that to accurately describe biofilm activity, the relation between the arrangement of structural components and mass transfer must be undrstood. © 1994 John Wiley & Sons, Inc.en_US
dc.identifier.citationde Beer D, Stoodley P, Roe F, and Lewandowski Z, "Effects of biofilm structures on oxygen distribution and mass transport," Biotechnology and Bioengineering, 1994 43(11):1131-1138.en_US
dc.identifier.issn0006-3592
dc.identifier.urihttps://scholarworks.montana.edu/handle/1/14169
dc.titleEffects of biofilm structures on oxygen distribution and mass transporten_US
dc.typeArticleen_US
mus.citation.extentfirstpage1131en_US
mus.citation.extentlastpage1138en_US
mus.citation.issue11en_US
mus.citation.journaltitleBiotechnology and Bioengineeringen_US
mus.citation.volume43en_US
mus.contributor.orcidde Beer, Dirk|0000-0001-5274-1781en_US
mus.data.thumbpage5en_US
mus.identifier.categoryEngineering & Computer Scienceen_US
mus.identifier.doi10.1002/bit.260431118en_US
mus.relation.collegeCollege of Engineeringen_US
mus.relation.departmentCenter for Biofilm Engineering.en_US
mus.relation.departmentChemical & Biological Engineering.en_US
mus.relation.departmentChemical Engineering.en_US
mus.relation.researchgroupCenter for Biofilm Engineering.en_US
mus.relation.universityMontana State University - Bozemanen_US

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