Integrated Modeling of Anaerobic Fluidized Bed Bioreactor for Deicing Waste Treatment. II: Simulation and Experimental Studies
This article is a reply.
VIEW THE ORIGINAL ARTICLEPublication: Journal of Environmental Engineering
Volume 129, Issue 2
Abstract
This paper examines the influence of bed segregation on the performance of an anaerobic fluidized bed bioreactor (AFBR) using both an integrated mathematical model previously described in Part I of this study, and experimental data obtained from a laboratory-scale AFBR continuous flow system and batch serum vial tests. Local hydrodynamics within the bed are shown to determine mixing intensities and patterns of bioparticles thereby controlling biofilm thickness and composition along the bed height. Results of the model simulations and the experimental data indicate that shallow biofilms that allow full substrate penetration are dominantly populated with faster growing micro-organisms. The internal mass transfer resistance in thicker biofilm significantly influences population distribution resulting in the increase of population of slower growing micro-organisms in a deeper layer of the biofilm. The serum bottle tests also confirm that microbial distribution inside a multispecies biofilm is determined by the hydrodynamic condition of the reactor. This study illustrates the importance of hydrodynamic regimes in the AFBR, and demonstrates the impact of bed segregation on bioparticle properties and total system performance.
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References
Al-Dibouni, M. R., and Garside, J.(1979). “Particle mixing and classification in liquid fluidized beds.” Trans. Inst. Chem. Eng., 57, 94–103.
American Public Health Association (APHA). (1995). Standard methods for the examination of water and wastewater, 19th Ed., Port City Press, Washington, D.C.
Bhamidimarri, S. M. R., and See, T. T.(1992). “Shear loss characteristics of an aerobic biofilm.” Water Sci. Technol., 26(3), 595–600.
Bryers, J. D.(1985). “Structured modeling of the anaerobic digestion of biomass particulates.” Biotechnol. Bioeng., 27(5), 638–649.
Bryers, J. D., and Characklis, W. G.(1982). “Processes governing primary biofilm formation.” Biotechnol. Bioeng., 24(11), 2451–2476.
Buffière, P., Fonade, C., and Moletta, R.(1998a). “Mixing and phase hold-ups variations due to gas production in anaerobic fluidized-bed digesters: Influence on reactor performance.” Biotechnol. Bioeng., 60(1), 36–43.
Buffière, P., Steyer, J. P., Fonade, C., and Moletta, R.(1998b). “Modeling and experiments on the influence of biofilm size and mass transfer in a fluidized bed reactor for anaerobic digestion.” Water Res., 32(3), 657–668.
Chang, H. T., and Rittmann, B. E.(1987). “Mathematical modeling of biofilm on activated carbon.” Environ. Sci. Technol., 21(3), 273–280.
Costello, D. J., Greenfield, P. F., and Lee, P. L.(1991). “Dynamic modelling of a single-stage high-rate anaerobic reactor. II. Model verification.” Water Res., 25(7), 859–871.
Denac, M., Miguel, A., and Dunn, I. J.(1988). “Modeling dynamic experiments on the anaerobic degradation of molasses wastewater.” Biotechnol. Bioeng., 31(1), 1–10.
Diez, V., Garcia, P. A., and Fdz-Polanco, F.(1999). “Evaluation of methanogenic kinetics in an anaerobic fluidized bed reactor (AFBR).” Proc. Biochem., 34, 213–219.
Droste, R. L., and Kennedy, K. J.(1986). “Sequential substrate utilization and effectiveness factor in fixed films.” Biotechnol. Bioeng., 28(11), 1713–1720.
Escher, A., and Characklis, W. G. (1989). “Modeling the initial events in biofilm accumulation.” Biofilms, W. G. Characklis and K. G. Marshall, eds., Wiley, New York, 445–486.
Grady, C. P. L., Jr., and Lim, H. C. (1980). Biological wastewater treatment, Marcel Dekker, New York.
Huang, J. S., and Wu, C. S.(1996). “Specific energy dissipation rate for fluidized-bed bioreactors.” Biotechnol. Bioeng., 50(6), 643–654.
Komisar, S. J., Weinert, C. G., Hickey, R. F., Veltman, S., and Switzenbaum M. S. (1998). “Complete on-site treatment of aircraft deicing wastewater using a sequential anaerobic fluidized bed-slow sand filter system.” Proc., Water Environment Federation 71st Annual Technological Conf., Fla., 3, 341–348.
Matlab® version 5.2.0-The language of technical computing. (1998). The MathWorks, Inc., Mass.
Lin, M. H.(1991). “A mathematical model for a biological fluidized bed.” J. Chem. Technol. Biotechnol., 51, 473–482.
Peyton, B. M., and Characklis, W. G.(1992). “Kinetics of biofilm detachment.” Water Sci. Technol., 26(9), 1995–1998.
Peyton, B. M., and 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(7), 728–735.
Rittmann, B., and Manem, J. A.(1992). “Development and experimental evaluation of a steady-state, multispecies biofilm model.” Biotechnol. Bioeng., 39(9), 914–922.
Ro, K. S., and Neethling, J. B.(1994). “Biological fluidized beds containing widely different bioparticles.” J. Environ. Eng., 120(6), 1416–1426.
Sawyer, L. K., and Hermanowicz, S. W.(1998). “Detachment of biofilm bacteria due to variation in nutrient supply.” Water Sci. Technol., 37(4), 211–214.
Schreyer, H. B., and Coughlin, R. W.(1999). “Effects of stratification in a fluidized bed bioreactor during treatment of metalworking wastewater.” Biotechnol. Bioeng., 63(2), 129–140.
Schwarz, A., Mösche, M., Wittenberg, A., Jördening, H. J., Buchholz, K., and Reuss, M.(1997). “Mathematical modeling and simulation of an industrial scale fluidized bed reactor for anaerobic wastewater treatment-scale-up effect on pH-gradients.” Water Sci. Technol., 36(6), 219–227.
Seok, J. (2001). “Dynamic modeling and process control of the de-icing wastewater treatment with AFBR.” PhD dissertation, Rensselaer Polytechnic Institute, N.Y.
Seok, J., and Komisar, S. J.(2002). “Integrated modeling of the anaerobic fluidized bed bioreactor (AFBR) for deicing water treatment. I: Model derivation.” J. Environ. Eng., 129(2), 100–109.
Shelton, D. R., and Tiedje, J. M.(1984). “General method for determining anaerobic biodegradation potential.” Appl. Environ. Microbiol., 47(4), 850–857.
Smith, D. P., and McCarty, P. L.(1989). “Energetic and rate effects on methanogenesis of ethanol and propionate in perturbed CSTRs.” Biotechnol. Bioeng., 34(1), 39–54.
Stewart, P. S.(1993). “A model of biofilm detachment.” Biotechnol. Bioeng., 41(1), 111–117.
Trinet, F., Heim, R., Amar, D., Chang, H. T., and Rittmann, B. E.(1991). “Study of biofilm and fluidization of bioparticles in a three-phase liquid-fluidized-bed reactor.” Water Sci. Technol., 23(7), 1347–1354.
Turan, M.(2000). “Mechanisms of biofilm detachment in anaerobic fluidized bed reactors.” Environ. Technol., 22, 177–183.
Veltman, S., Komisar, S., Switzenbaum, M., and Hickey, R. (1998a). “Anaerobic treatment of aircraft deicing wastes-a technological assessment.” Final report for the New York State Energy Research and Development Authority, Project 4501A-ERTER-MW-97, Albany, N.Y.
Veltman, S., Schoenberg, T., and Switzenbaum, M. S.(1998b). “Alcohol and acid formation during the anaerobic decomposition of propylene glycol under methanogenic conditions.” Biodegradation, 9(2), 113–118.
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Copyright © 2003 American Society of Civil Engineers.
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Received: Jan 2, 2002
Accepted: Apr 24, 2002
Published online: Jan 15, 2003
Published in print: Feb 2003
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