An experimental model of biofilm detachment in liquid fluidized bed biological reactors

Biotechnology and Bioengineering

Volumn 51, Issue 6, 1996, Pages 713-719

  Nicolella, Cristiano ^a   Di Felice, Renzo ^a   Rovatti, Mauro ^a  

^a UNIVERSITY OF GENOA   (Italy)

Author keywords

biofilm detachment; dimensional analysis; fluidized bed biological reactor

Indexed keywords

BIOFILMS; BIOMASS; LIQUIDS; MATHEMATICAL MODELS; SHEAR STRESS; VELOCITY;

BIOFILM DETACHMENT; DIMENSIONAL ANALYSIS; FLUIDIZED BED BIOLOGICAL REACTOR;

BIOREACTORS;

ARTICLE; BIOFILM; BIOMASS; BIOREACTOR; DISSOCIATION; LIQUID; PARTICLE SIZE; SHEAR STRESS;

EID: 9444229280     PISSN: 00063592     EISSN: None     Source Type: Journal    
DOI: 10.1002/(SICI)1097-0290(19960920)51:6<713::AID-BIT10>3.0.CO;2-E     Document Type: Article

References (27)

1. Asif, M., Kalogerakis, N., Behie, L. A. 1992. Hydrodynamics of liquid fluidized beds including the distributor region. Chem. Eng. Sci. 47: 4155-4166.
2. APHA. 1985. Standard methods for the examination of water and wastewater. 16th ed. American Public Health Association, Washington, DC.
3. Bard, Y. 1974. Non linear parameter estimation. Academic Press, New York.
4. Beer, D. de, Stoodley, P., Lewandowski, Z. 1994. Liquid flow in heterogeneous biofilms. Biotechnol Bioeng. 44: 636-641.
5. Carlos, C. R., Richardson, J. F. 1968. Solid movement in liquid fluidised beds. II measurement of axial mixing coefficients. Chem. Eng. Sci. 23:825-831.
6. Chang, H.-T., Rittmann, B. E. 1988. Comparative study of biofilm shear loss on different adsorptive media. J Water Pollut. Control Fed. 60: 362-368.
7. Chang, H.-T., Rittmann, B. E., Amar, D., Heim, R., Ehlinger, O., Lesty, Y. 1991. Biofilm detachment mechanism in a liquid-fluidizedbed. Biotechnol. Bioeng. 38: 499-506.
8. Cooper, P. F., Wheeldon, D. H. D. 1982. Complete treatment of sewage in a two-stage fluidized-bed system. Part 1. Water Pollut. Control 81: 447-464.
9. Foscolo, P. U., Gibilaro, L. G. 1984. A fully predictive criterion for the transition between particulate and aggregate fluidisation. Chem. Eng. Sci. 39: 1667-1675.
10. Gjaltema, A., Tijhuis, L., Loosdrecht, M. C. M. van, Heijnen, J. J. 1995. Detachment of biomass from suspended nongrowing spherical biofilms in airlift reactors. Biotechnol. Bioeng. 46: 258-269.
11. Hermanovicz, S. W., Schindler, U., Wilderer, P. 1996. Anisotropic morphology and fractal dimensions of biofilms. Water Res. 30: 753-755.
12. Jeris, J. S., Owens, R. W., Hickey, R., Flood, F. 1977. Biological fluidized-bed treatment for BOD and nitrogen removal. J. Water Pollut. Control Fed. 49: 816-831.
13. Ngian, K. F., Martin, W. R. B. 1980. Bed expansion characteristics of liquid fluidized particles with attached microbial growth. Biotechnol. Bioeng. 22: 1843-1856.
14. Nicolella, C., Converti, A., Di Felice, R., Rovatti, M. 1995. The estimation of the solid size and density in liquid fluidized-bed biological reactors. Chem. Eng. Sci. 50: 1059-1062.
15. Perry, R. H., Green, D. 1984. Chemical Engineers' handbook, 6th ed. McGraw-Hill, New York.
16. Peyton, B. M., Characklis, W. G. 1993. A statistical analysis of the effect of substrate utilization and shear stress on the kinetics of biofilm detachment. Biotechnol. Bioeng. 41: 728-735.
17. Powell, M. S., Slater, N. K. H. 1982. Removal rates of bacterial cells from glass surfaces by fluid shear. Biotechnol. Bioeng. 24: 2527-2537.
18. Rao Bhamidimarri, S. M., See, T. T. 1992. Shear loss characteristics of an aerobic biofilm. Water Sci. Tech. 26: 595-600.
19. Richardson, J. F., Zaki, W. N. 1954. Sedimentation and fluidisation. Part I. Trans. Instn Chem. Engrs. 32: 35-53.
20. Rittmann, B. E., Trinet, F., Amar, D., Chang, H. T. 1992. Measurement of the activity of a biofilm: The effect of surface loading and detachment on a three-phase, liquid-fluidized-bed reactor. Water Sci. Tech. 26: 585-594.
21. Speitel, G. E., Di Giano, F. A. 1987. Biofilm shearing under dynamic conditions. J. Env. Eng. 113: 464-475.
22. Stewart, P. S. 1993. A model of biofilm detachment. Biotechnol. Bioeng. 41: 111-117.
23. Tijhuis, L., van Benthum, W. A. J., van Loosdrecht, M. C. M., Heijnen, J. J. 1994. Solids retention time in spherical biofilms in a biofilm airlift suspension reactor. Biotechnol. Bioeng. 44: 867-879.
24. Tijhuis, L., Loosdrecht, M. C. M. van, Heijnen, J. J. 1995. Dynamics of biofilm detachment in biofilm airlift suspension reactors. Biotechnol. Bioeng. 45: 481-487.
25. Trulear, M. G., Characklis, W. G. 1982. Dynamics of biofilm processes. J. Water Pollut. Control Fed. 54: 1288-1301.
26. Williams, S. C., Harrington, D. W., Cooper, P. F., Quinn, J. J. 1986. High-rate nitrification in a biological fluidized bed at Horley STW - An interim report. Water Pollut. Control 85: 81-89.
27. Zhang, T. C., Bishop, P. L. 1994. Density, porosity and pore structure of biofilms. Water Res. 28: 2267-2277.