External detachment forces acting on evenly spaced biofilm colonies grown in a roto-torque reactor are calculated numerically using a finite element based 2-D CFD tool. The 2-D laminar shear flow around a biofilm colony is investigated for different shear rates corresponding to different rotating velocities of a roto-torque reactor. The effect of neighbouring biofilm colonies is accounted for by the choice of boundary conditions for the flow model. The forces acting on the biofilm colonies show an initial gradual increase as the spacing decreases from a large value up to a particular spacing beyond which they decrease rapidly with decreasing spacing. This trend is highly correlated with the detailed structure of the flow around the biofilm colonies.
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Research Article|
October 01 2005
Quantification of detachment forces on rigid biofilm colonies in a roto-torque reactor using computational fluid dynamics tools
R. Sudarsan;
*Department of Mathematics and Statistics, University of Guelph, Guelph, Ontario, N1G 2W1, Canada, (E-mail: [email protected]; [email protected])
E-mail: [email protected]
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K. Milferstedt;
K. Milferstedt
**Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA, (E-mail: [email protected])
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E. Morgenroth;
E. Morgenroth
**Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA, (E-mail: [email protected])
***Department of Animal Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA, (E-mail: [email protected])
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H.J. Eberl
H.J. Eberl
*Department of Mathematics and Statistics, University of Guelph, Guelph, Ontario, N1G 2W1, Canada, (E-mail: [email protected]; [email protected])
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Water Sci Technol (2005) 52 (7): 149–154.
Citation
R. Sudarsan, K. Milferstedt, E. Morgenroth, H.J. Eberl; Quantification of detachment forces on rigid biofilm colonies in a roto-torque reactor using computational fluid dynamics tools. Water Sci Technol 1 October 2005; 52 (7): 149–154. doi: https://doi.org/10.2166/wst.2005.0194
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