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dc.contributor.authorde Beer, Dirk
dc.contributor.authorStoodley, Paul
dc.contributor.authorLewandowski, Zbigniew
dc.date.accessioned2018-02-01T21:41:54Z
dc.date.available2018-02-01T21:41:54Z
dc.date.issued1996-11
dc.identifier.citationde Beer, D., P. Stoodley, and Z. Lewandowski, “Liquid Flow and Mass Transport in Heterogeneous Biofilms,” Water Research, 30(11):2761-2765 (1996).en_US
dc.identifier.issn0043-1354
dc.identifier.urihttps://scholarworks.montana.edu/xmlui/handle/1/14285
dc.description.abstractConvective mass transport in heterogeneous biofilms, consisting of cell clusters and voids, was investigated using oxygen microelectrodes. Oxygen concentration profiles were measured and contour plots constructed at different (average) flow velocities (Uavg). The profiles were used to determine the thickness of the mass transfer boundary layer (δh) above the voids and the cell clusters. The δh above the biofilm was inversely related to flow, as expected, and decreased exponentially with increasing flow velocity. However, the δh above the voids decreased more rapidly than the δh above the cell clusters resulting in two distinct situations; at low flow velocities the oxygen contours were parallel to the substratum but at high velocities were parallel to the irregular biofilm surface. It was concluded that at low flow velocities the biofilm could be modeled one-dimensionally, with fluxes perpendicular to the substratum and the exchange area being equal to the substratum area, but at higher velocities biofilm voids facilitate mass transport and a more complex, three-dimensional model would be more appropriate. In this latter case fluxes are multidirectional, and the exchange area is equal to that of the convoluted biofilm surface.en_US
dc.titleLiquid flow and mass transport in heterogeneous biofilmsen_US
dc.typeArticleen_US
mus.citation.extentfirstpage2761en_US
mus.citation.extentlastpage2765en_US
mus.citation.issue11en_US
mus.citation.journaltitleWater Researchen_US
mus.citation.volume30en_US
mus.identifier.categoryEngineering & Computer Scienceen_US
mus.identifier.doi10.1016/s0043-1354(96)00141-8en_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.universityMontana State University - Bozemanen_US
mus.relation.researchgroupCenter for Biofilm Engineering.en_US
mus.data.thumbpage4en_US


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