Modeling the activated sludge floc microenvironment

Water Science and Technology

Volumn 37, Issue 4-5, 1998, Pages 243-250

  Scuras, Sean ^a   Daigger, Glen T ^b   Grady Jr , C P Leslie ^a  

^a CLEMSON UNIVERSITY   (United States)

^b CH2M HILL   (United States)

Author keywords

Activated sludge; Floc structure; Microcolonies; Modeling; Population dynamics; Porosity; Settleability

Indexed keywords

BACTERIA; FLOCCULATION; GROWTH KINETICS; MATHEMATICAL MODELS; POROSITY;

BACTERIAL POPULATIONS; FLOC STRUCTURE; POPULATION DYNAMICS;

ACTIVATED SLUDGE PROCESS;

ACTIVATED SLUDGE; MODELING;

ACTIVATED SLUDGE; BIOMASS; CONFERENCE PAPER; MODEL; SLUDGE SETTLING;

EID: 0031803967     PISSN: 02731223     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0273-1223(98)00114-0     Document Type: Conference Paper

References (43)

1. Andreadakis, A. D. (1993). Physical and Chemical Properties of Activated Sludge Floc. Wat. Res., 27(12), 1707-1714.
2. Benefield, L. and Molz, F. (1984). A Model for the Activated Sludge Process which Considers Wastewater Characteristics, Floc Behavior, and Microbial Population. Biotechnol. Bioeng., 26, 352-361.
3. Bird, R. B., Stewart, W. E. and Lightfoot, E. N. (1960). Transport Phenomena. John Wiley and Sons, New York.
4. Chao, A. C. and Keinath, T. M. (1979). Influence of Process Loading Intensity on Sludge Clarification and Thickening Characteristics. Wat. Res., 13, 1213-1223.
5. Costerton, J. W. (1995). Overview of Microbial Biofilms. J. Indust. Microbiol., 15, 137-140.
6. Costerton, J. W., Lewandowski, Z., Caldwell, D. E., Korber, D. R. and Lappin-Scott, H. M. (1995). Microbial Biofilms. Annu. Rev. Microbiol., 49, 711-745.
7. Daigger, G. T. (1995). Development of Refined Clarifier Operating Diagrams Using Updated Settling Characteristics Database. Water Environ. Res., 67, 95-100.
8. Costerton, J. W., Lewandowski, Z., Caldwell, D. E., Korber, D. R. and Lappin-Scott, H. M. (1995). Microbial Biofilms. Annu. Rev. Microbiol., 49, 711-745.
9. de Beer, D., Stoodley, P. and Lewandowski, Z. (1994). Liquid Flow in Heterogenous Biofilms. Biotechnol. Bioeng., 44, 636-641.
10. de Beer, D., Stoodley, P., Roe, F., and Lewandowski, Z. (1994). Effects of Biofilm Structures on Oxygen Distribution and Mass Transport. Biotechnol. Bioeng., 43, 1131-1138.
11. Forster, C. F. (1985). Factors Involved in the Settlement of Activated Sludge-I: Nutrients and Surface Polymers. Water Res., 19(10), 1259-1264.
12. Grijspeerdt, K., Vanrolleghem, P. and Verstraete, W. (1995). Selection of One-dimensional Sedimentation Models for On-line Use. Wat. Sci. Tech., 31(2), 193-204.
13. Gujer, W. and Kappeler, J. (1992). Modelling Population Dynamics in Activated Sludge Systems. Wat. Sci. Tech., 25(6), 93-103.
14. Henze, M., Grady, C. P. L. Jr., Gujer, W., Marais, G. vR. and Matsuo, T. (1987). Abbreviated Report: A General Model for Single-Sludge Wastewater Treatment Systems. Wat. Res., 21(5), 505-515.
15. Higgins, M. J. and Novak, J. T. (1997). The Effect of Cations on the Settling and Dewatering of Activated Sludges: Laboratory Results. Water Environ. Res., 69(2), 215-224.
16. Horn, H. and Hempel, D. C. (1997). Substrate Utilization and Mass Transfer in an Autotrophic Biofilm System: Experimental Results and Numerical Simulation. Biotechnol. Bioeng., 53, 363-371.
17. James, G. A., Beudetle, L. and Costerton, J. W. (1995). Interspecies Bacterial Interactions in Biofilms. J. Indust. Microbiol., 15, 257-262.
18. Jenkins, D., Richard, M. G. and Daigger, G. T. (1993). Manual on the Causes and Control of Activated Sludge Bulking and Foaming, 2nd edn, Lewis Publishers, Chelsea, Michigan.
19. Ji, Z., McCorquodale, J. A., Zhou, S. and Vitasovic, Z. (1996). A Dynamic Solids Inventory Model for Activated Sludge Systems. Water Environ. Res., 68(3), 329-337.
20. Jorand, F., Zartarian, F., Thomas, F., Block, J. C., Bottero, J. Y., Villemin, G., Urbain, V. and Manem, J. (1995). Chemical and Structural (2D) Linkage Between Bacteria Within Activated Sludge Flocs. Wat. Res., 29(7), 1639-1647.
21. Lau, A. O., Strom, P. F. and Jenkins, D. (1984). The Competetive Growth of Floe-forming and Filamentous Bacteria: A Model for Activated Sludge Bulking. J. Water Pollut. Control Fed., 56(1), 52-61.
22. Li, D. and Ganczarczyk, J. (1992). Advective Transport in Activated Sludge Flocs. Water Environ. Res., 64(3), 236-240.
23. Li, D. and Ganczarczyk, J. (1989). Fractal Geometry of Particle Aggregates Generated in Water and Wastewater Treatment Processes. Environ. Sci. Technol., 23(11), 1385-1389.
24. Liss, S. N., Droppo, I. G., Flannigan, D. T. and Leppard, G. G. (1996). Floe Architecture in Wastewater and Natural Riverine Systems. Environ. Sci. Technol., 30(2), 680-686.
25. Mathworks, Inc. (1992). MATLAB Reference Guide, Natik, Massachusetts.
26. Orhan, D. and Artan, N. (1994). Modelling of Activated Sludge Systems, Technomic Publishing, Lancaster, Pennsylvania.
27. Parker, D. S., Kaufman, W. J. and Jenkins, D. (1971). Physical Conditioning of Activated Sludge Floc. J. Water Pollut. Control Fed., 43(9), 1817-1833.
28. Patry, G. G. and Takacs, I (1991). Modular Multi-Purpose Modelling System for the Simulation of Wastewater Treatment Plant Dynamics. In: Instrumentation, Control and Automation of Water and Wastewater Treatment and Trasnsport Systems, Adv. Wat. Pollut. Control., no. 10, R. Briggs (ed), Pergamon Press, Oxford, England, pp. 385-392.
29. Parker, D. S., Kaufman, W. J. and Jenkins, D. (1972). Floc Breakup in Turbulent Flocculation Processes. J. San. Eng. Div., Proc. Amer. Soc. Civil Eng., 98(SA1), 79-99.
30. Sanin, F. D. and Vesilind, P. A. (1994). Effect of Centrifugation on the Removal of Extracellular Polymers and Physical Properties of Activated Sludge. Wat. Sci. Tech., 30(8), 117-127.
31. Sezgin, M. (1982). The Role of Filamentous Microorganisms in Activated Sludge Settling. Prog. Wat. Tech., 12(6), 97-107.
32. Sheintuch, M., Lev, O., Einav, P. and Rubin, E. (1986). Role of Exocellular Polymer in the Design of Activated Sludge. Biotechnol. Bioeng., 28, 1564-1576.
33. Stoodley, P., de Beer, D. and Lewandowski, Z. (1994). Liquid Flow in Biofilm Systems. Appl. Environ. Microbiol., 60(8), 2711-2716.
34. Takacs, I. and Fleit, E. (1995). Modelling of the Micromorphology of the Activated Sludge Floc: Low DO, Low F/M Bulking. Wat. Sci. Tech., 31(2), 235-243.
35. Urbain, V., Block, J. C. and Manem, J. (1993). Bioflocculation in Activated Sludge: An analytic Approach. Wat. Res., 27(5), 829-838.
36. Wanner, J. (1994). Activated Sludge Population Dynamics. Wat. Sci. Tech., 30(11), 159-169.
37. Wanner, O. and Gujer, W. (1986). A Multispecies Biofilm Model. Biotechnol. Bioeng., 28, 314-328.
38. Wanner, O. and Reichert, P. (1996). Mathematical Modeling of Mixed-culture Biofilms. Biotechnol. Bioeng., 49, 172-184.
39. Weber, W. J. and DiGiano, F. J. (1996). Process Dynamics in Environmental Systems. John Wiley and Sons, New York.
40. Yang, S. and Lewandowski, Z. (1995). Measurement of Local Mass Transfer Coefficient in Biofilms. Biotechnol. Bioeng., 48, 737-744.
41. Zhang, T. C. and Bishop, P. L. (1994a). Structure, Activity and Composition of Biofilms. Wat. Sci. Tech., 29(7), 335-344.
42. Zhang, T. C. and Bishop, P. L. (1994b). Evaluation of Tortuosity Factors and Effective Diffusivities in Biofilms. Wat. Res., 28(11), 2279-2287.
43. Zhang, T. C., Fu, Y. C. and Bishop, P. L. (1995). Competition for Substrate and Space in Biofilms. Water Environ. Res., 67(6), 992-1003.