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dc.contributor.authorStoodley, Paul
dc.contributor.authorYang, Shunong
dc.contributor.authorLappin-Scott, H. M.
dc.date.accessioned2018-02-02T16:19:16Z
dc.date.available2018-02-02T16:19:16Z
dc.date.issued1997-12
dc.identifier.citationStoodley, P., S.Yang, H. Lappin-Scott, and Z. Lewandowski, “Relationship Between Mass Transfer Coefficient and Liquid Flow Velocity in Heterogenous Biofilms Using Microelectrodes and Confocal Microscopy,” Biotechnology and Bioengineering, 56(6):681-688 (1997).en_US
dc.identifier.issn0006-3592
dc.identifier.urihttps://scholarworks.montana.edu/xmlui/handle/1/14306
dc.description.abstractThe relationship between local mass transfer coefficient and fluid velocity in heterogenous biofilms was investigated by combining microelectrodes and confocal scanning laser microscopy (CSLM). The biofilms were grown for up to 7 days and consisted of cell clusters separated by interstitial channels. Mass transfer coefficient depth profiles were measured at specific locations in the cell clusters and channels at average flow velocities of 2.3 and 4.0 cm/s. Liquid flow velocity profiles were measured in the same locations using a particle tracking technique. The velocity profiles showed that flow in the open channel was laminar. There was no flow at the top surface of the biofilm cell clusters but the mass transfer coefficient was 0.01 cm/s. At the same depth in a biofilm channel, the flow velocity was 0.3 cm/s and the mass transfer coefficient was 0.017 cm/s. The mass transfer coefficient profiles in the channels were not influenced by the surrounding cell clusters. Local flow velocities were correlated with local mass transfer coefficients using a semi-theoretical mass transfer equation. The relationship between the Sherwood number (Sh,) the Reynolds number (Re,) and the Schmidt number (Sc) was found using the experimental data to find the dimensionless empirical constants (n1, n2, and m) in the equation Sh = n1 + n2RemSc1/3. The values of the constants ranged from 1.45 to 2.0 for n1, 0.22 to 0.28 for n2, and 0.21 to 0.60 for m. These values were similar to literature values for mass transfer in porous media. The Sherwood number for the entire flow cell was 10 when the bulk flow velocity was 2.3 cm/s and 11 when the bulk flow velocity was 4.0 cm/s. © 1997 John Wiley & Sons, Inc. Biotechnol Bioeng56: 681–688, 1997.en_US
dc.titleRelationship between mass transfer coefficient and liquid flow velocity in heterogenous biofilms using microelectrodes and confocal microscopyen_US
dc.typeArticleen_US
mus.citation.extentfirstpage681en_US
mus.citation.extentlastpage688en_US
mus.citation.issue6en_US
mus.citation.journaltitleBiotechnology and Bioengineeringen_US
mus.citation.volume56en_US
mus.identifier.categoryEngineering & Computer Scienceen_US
mus.identifier.doi10.1002/(sici)1097-0290(19971220)56:6<681::aid-bit11>3.0.co;2-ben_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.thumbpage2en_US


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