Experimental and CFD simulation studies of wall shear stress for different impeller configurations and MBR activated sludge

Water Science and Technology

Volumn 65, Issue 11, 2012, Pages 2061-2070

  Ratkovich, N ^a   Chan, C C V ^b   Bentzen, T R ^a   Rasmussen, M R ^a  

^a AALBORG UNIVERSITY   (Denmark)

^b BRITISH COLUMBIA INSTITUTE OF TECHNOLOGY   (Canada)

Author keywords

CFD; MBR; Non Newtonian liquid; Rotational flow; Shear stress

Indexed keywords

ACTIVATED SLUDGE; BIOLOGICAL WASTE WATER TREATMENT; CFD MODELS; CFD SIMULATIONS; COMMON PROBLEMS; EXPERIMENTAL MEASUREMENTS; EXPERIMENTAL VALIDATIONS; FILTRATION PERFORMANCE; FULL-SCALE APPLICATIONS; MBR; MEMBRANE BIOREACTOR; MEMBRANE CLEANING; MEMBRANE SURFACE; MODERN TOOLS; NON-NEWTONIAN; STRESS-INDUCED; WALL SHEAR STRESS;

COMPUTATIONAL FLUID DYNAMICS; COMPUTER SIMULATION; IMPELLERS; NON NEWTONIAN LIQUIDS; ROTATIONAL FLOW; SHEAR STRESS;

MICROFILTRATION;

ACTIVATED SLUDGE; BIOREACTOR; COMPUTATIONAL FLUID DYNAMICS; ELECTROKINESIS; EXPERIMENTAL STUDY; MEMBRANE; NON-NEWTONIAN FLUID; SHEAR STRESS; WALL; WASTE TREATMENT; WASTEWATER;

ACTIVATED SLUDGE; ARTICLE; COMPUTATIONAL FLUID DYNAMICS; CONTROLLED STUDY; ELECTROCHEMISTRY; EXPERIMENTAL STUDY; IMPELLER; MEMBRANE FILTER; MEMBRANE REACTOR; SHEAR STRESS; SIMULATION; VALIDATION PROCESS;

BIOREACTORS; COMPUTER SIMULATION; MEMBRANES, ARTIFICIAL; MODELS, THEORETICAL; SEWAGE; STRESS, MECHANICAL; WATER MOVEMENTS;

EID: 84861733214     PISSN: 02731223     EISSN: None     Source Type: Journal    
DOI: 10.2166/wst.2012.106     Document Type: Article

References (26)

1. Andereck, C. D., Liu, S. S. & Swinney, H. L. 1986 Flow regimes in a circular couette system with independently rotating cylinders. J. Fluid Mech. 164, 155-183. (Pubitemid 16535639)
2. Bouzerar, R., Ding, L. & Jaffrin, M. Y. 2000a Local permeate fluxshear- pressure relationships in a rotating disk microfiltration module: implications for global performance. J. Membr. Sci. 170 (1), 127-141. (Pubitemid 30145462)
3. Bouzerar, R., Jaffrin, M. Y., Ding, L. & Paullier, P. 2000b Influence of geometry and angular velocity on performance of a rotating disk filter. AICHE J. 46 (2), 257-265. (Pubitemid 30110933)
4. Brou, A., Ding, L., Boulnois, P. & Jaffrin, M. Y. 2002 Dynamic microfiltration of yeast suspensions using rotating disks equipped with vanes. J. Membr. Sci. 197 (1-2), 269-282. (Pubitemid 34083602)
5. Caton, F. 2006 Linear stability of circular Couette flow of inelastic viscoplastic fluids. J. Non Newtonian Fluid Mech. 134 (1-3), 148-154.
6. Chan, C. C. V., Berube, P. R. & Hall, E. R. 2007 Shear profiles inside gas sparged submerged hollow fiber membrane modules. J. Membr. Sci. 297 (1-2), 104-120. (Pubitemid 46764490)
7. Chan, C. C. V., Berube, P. R. & Hall, E. R. 2011 Relationship between types of surface shear stress profiles and membrane fouling. Water Res. 45 (19), 6403-6416.
8. Cui, Z. F., Chang, S. & Fane, A. G. 2003 The use of gas bubbling to enhance membrane processes. J. Membr. Sci. 221 (1-2), 1-35. (Pubitemid 36966123)
9. Dumont, E., Fayolle, F. & Legrand, J. 2000 Flow regimes and wall shear rates determination within a scraped surface heat exchanger. J. Food Eng. 45 (4), 195-207.
10. Dumont, E., Fayolle, F., Sobolik, V. & Legrand, J. 2002 Wall shear rate in the Taylor-Couette-Poiseuille flow at low axial Reynolds number. Int. J. Heat. Mass Transfer. 45 (3), 679-689. (Pubitemid 34010426)
11. Ghosh, R. & Cui, Z. F. 1999 Mass transfer in gas-sparged ultrafiltration: upward slug flow in tubular membranes. J. Membr. Sci. 162 (1-2), 91-102. (Pubitemid 29397376)
12. Hanratty, T. J. 1991 Use of the polarographic method to measure wall shear stress. J. Appl. Electrochem. 21 (12), 1038-1046. (Pubitemid 21719334)
13. Jaffrin, M. Y. 2008 Dynamic shear-enhanced membrane filtration: a review of rotating disks, rotating membranes and vibrating systems. J. Membr. Sci. 324 (1-2), 7-25.
14. Judd, S. 2006 The MBR book. Elsevier, Oxford.
15. Laera, G., Giordano, C., Pollice, A., Saturno, D. & Mininni, G. 2007 Membrane bioreactor sludge rheology at different solid retention times. Water Res. 41 (18), 4197-4203. (Pubitemid 47418943)
16. Legrand, J., Dumont, E., Comiti, J. & Fayolle, F. 2000 Diffusion coefficients of ferricyanide ions in polymeric solutions - comparison of different experimental methods. Electrochim. Acta. 45 (11), 1791-1803. (Pubitemid 30550626)
17. Mori,M., Seyssiecq, I.&Roche,N. 2006 Rheologicalmeasurements of sewage sludge for various solids concentrations and geometry. Process Biochem. 41 (7), 1656-1662.
18. Pollice, A., Giordano, C., Laera, G., Saturno, D. & Mininni, G. 2007 Rheology of sludge in a complete retention membrane bioreactor. Environ. Technol. 27, 723-732.
19. Ratkovich, N., Berube, P. R. & Nopens, I. 2011 Assessment of mass transfer coefficients in coalescing slug flow in vertical pipes and applications to tubular airlift membrane bioreactors. Chem. Eng. Sci. 66 (6), 1254-1268.
20. Rosant, J. M. 1994 Liquid-wall shear stress in stratified liquid/gas flow. J. Appl. Electrochem. 24 (7), 612-618.
21. Rosenberger, R.,Kubin,K.&Kraume,M. 2006 Rheology of activated sludge in membrane bioreactors. Eng. Life Sci. 2 (9), 269-275.
22. Schwinge, J.,Wiley, D. E. & Fletcher, D. F. 2002 ACFDstudy of unsteady flowin narrowspacer-filled channels for spiral-wound membrane modules. Desalination 146 (1-3), 195-201.
23. Smith, S. R. & Cui, Z. F. 2004 Gas-slug enhanced hollow fibre ultrafiltration - an experimental study. J. Membr. Sci. 242 (1-2), 117-128. (Pubitemid 39440382)
24. Torras, C., Pallares, J., Garcia-valls, R. & Jaffrin, M. 2006 CFD simulation of a rotating disk flat membrane module. Desalination 200 (1-3), 453-455. (Pubitemid 44173573)
25. Torras, C., Pallares, J., Garcia-Valls, R. & Jaffrin, M. Y. 2009Numerical simulation of the flow in a rotating disk filtration module. Desalination 235 (1-3), 122-138.
26. White, F. 2002 Fluid Mechanics (5th ed.). McGraw-Hill, New York.