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dc.contributor.authorCunningham, Alfred B.
dc.contributor.authorVisser, Ernest Jay
dc.contributor.authorLewandowski, Zbigniew
dc.contributor.authorAbrahamson, Michael T.
dc.identifier.citationCunningham, A.B., E. Visser, Z. Lewandowski and M. Abrahamson, "Evaluation of a coupled mass transport-biofilm process model using dissolved oxygen microsensors," Wat. Sci. Tech., 32(8):107-114 (1995).en_US
dc.description.abstractA 2-dimensional model has been developed which couples hydrodynamics, solute transport and reaction in a steady state biofilm system of irregular geometry under laminar flow. Biofilm thickness is initially specified over the domain and remains constant during the simulations. The Navier-Stokes equations are coupled with advection-diffusion-reaction equations describing oxygen transport and solved using finite differences. This model facilitates computational investigation of fluid velocity and solute concentration distributions in proximity to the fluid-biofilm interface. Model evaluation has been carried out using dissolved oxygen profiles measured by microsensors in a rectangular open channel with a 300 μm (approximate) artificial biofilm composed of alginate gel with an 8×1010 cells/ml concentration of Ps. aeruginosa cells. Significant variability in dissolved oxygen profile shape was observed at three locations on the artificial biofilm. Model simulations of these experiments facilitated a direct comparison between observed and computed values of dissolved oxygen concentration in the vicinity of the fluid-biofilm interface. Simulated profiles agreed closely with measured profiles at all three locations.en_US
dc.titleEvaluation of a coupled mass transport-biofilm process model using dissolved oxygen microsensorsen_US
mus.citation.journaltitleWater Science and Technologyen_US
mus.identifier.categoryEngineering & Computer Scienceen_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

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