Mass Transfer of Ozone in a Novel In Situ Ozone Generator and Reactor
Publication: Journal of Environmental Engineering
Volume 134, Issue 10
Abstract
A porous tubular reactor that also served as an electrode for ozone generation was studied in this research to determine the effects of in situ ozone generation on mass transfer and reaction rates. Experimental data over a range of gas flow rates and ozone generation rates gave values in the range . These values are more than double the values typically reported for bubble columns, and about 30% higher than that for packed beds. The specific power requirement for the laboratory-scale in situ reactor is an order of magnitude lower than that for bubble columns and stirred tank reactors that are used for ozone dissolution. A compartments-in-series fluid flow model was developed to describe the reactor system, and this model provides a good comparison to the experimental data for dissolved ozone and off-gas concentrations in the reactor. Sensitivity analyses indicate that the dissolved and off-gas ozone profiles are most sensitive to the gas–liquid partition coefficient and the overall mass transfer coefficient.
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Acknowledgments
This research was supported by a research grant and REU supplement from the National Science Foundation (BES-0209343).
References
Anselmi, G., Lignola, P. G., Raitano, C., and Volpicelli, G. (1984). “Ozone mass transfer in stirred vessel.” Ozone: Sci. Eng., 6(1), 17–28.
Caprio, V., Insola, A., Lignola, P. G., and Volpicelli, G. (1982). “A new attempt for the evaluation of the absorption constant of ozone in water.” Chem. Eng. Sci., 37(1), 122–124.
Cote, P., Bersillon, J., and Huyard, A. (1989). “Bubble-free aeration using membranes: Mass transfer analysis.” J. Membr. Sci., 47(1–2), 91–106.
Danckwerts, P. V. (1970). Gas–liquid reactions, McGraw-Hill, New York.
El-Din, M. D., and Smith, D. W. (2001). “Maximizing the enhanced ozone oxidation of Kraft pulp mill effluents in an impinging-jet bubble column.” Ozone: Sci. Eng., 23(6), 479–493.
Gottschalk, C., Libra, J. A., and Saupe, A. (2000). Ozonation of water and wastewater. A practical guide to understanding ozone and its application, Wiley-VCH, Weinheim, Germany.
Gurol, M. D. (1985). “Factors controlling the removal of organic pollutants in ozone reactors.” J. Am. Water Works Assoc., 77(8), 55–60.
Gurol, M. D., and Singer, P. C. (1982). “Kinetics of ozone decomposition: A dynamic approach.” Environ. Sci. Technol., 16(7), 377–383.
Karoor, S., and Sirkar, K. K. (1993). “Gas absorption studies in microporous hollow fiber membrane modules.” Ind. Eng. Chem. Res., 32, 674–684.
Langlais, B., Reckhow, D. A., and Brink, D. R. (1991). Ozone in water treatment: Application and Engineering, Lewis, Chelsea, Mich., 389–426.
Laplanche, A., Le Sauze, N., Martin, G., and Langlais, B. (1991). “Simulation of ozone transfer in water. Comparision with a pilot unit.” Ozone: Sci. Eng., 13, 535–557.
Marinas, B. J., Liang, S., and Aieta, E. M. (1993). “Modeling hydrodynamics and ozone residual distribution in a pilot-scale ozone bubble diffuser contactor.” J. Am. Water Works Assoc., 85(3), 90–99.
Martin, N., Martin, G., and Boisdon, V. (1994). “Modelization of ozone transfer to water using static mixers.” Proc., Application of Ozone in Water and Wastewater Treatment, Warsaw, Poland, 293–313.
Mathews, A. P., Ananthi, S., Padmanabhan, K., Chandrasekharan, K., Panda, K. K., Patel, K., and Kim, W. (2003). “Low-cost and small-scale applications for ozonation and novel electrode systems for in situ ozonation.” Proc., Int. Conf. on Ozone (IOA), Berlin, Germany, 131–140.
Mathews, A. P., Panda, K. K., Ananthi, S., and Padmanabhan, K. (2004). “Mass transfer and oxidation kinetics in an in situ ozone generator.” Water Sci. Technol., 49(4), 19–24.
Morris, J. C. (1988). “The aqueous solubility of ozone—A review.” Ozone News, 16, 14–16.
Padmanabhan, K., Ananthi, S., and Patel, K. (2000). “Portable ozone generator.” Electronics for You (India), 32, 46–51.
Panda, K. K. (2005). “Ozone mass transfer and reaction in in situ and stirred tank reactors.” Ph.D. dissertation, Kansas State Univ., Manhattan, Kan.
Rakness, K., Gordon, G., Langlais, B., Masschelein, W., Matsumoto, N., Richard, Y., Robson, C. M., and Somiya, I. (1996). “Guidelines for measurement of ozone concentration in the process gas from an ozone generator.” Ozone: Sci. Eng., 18(3), 209–229.
Roth, J. A., and Sullivan, D. E. (1981). “Solubility of ozone in water.” Ind. Eng. Chem. Fundam., 20, 137–140.
Roustan, M., Duguet, J. P., Brette, B., Brodard, E., and Mallevialle, J. (1987). “Mass balance analysis of ozone in conventional bubble contactors.” Ozone: Sci. Eng., 9(3), 289–297.
Roustan, M., Wang, R. Y., and Wolbert, D. (1996). “Modeling hydrodynamic and mass transfer parameters in a continuous ozone bubble column.” Ozone: Sci. Eng., 18(2), 99–115.
Sano, N., Kawashima, T., Fujikawa, J., Fujimoto, T., Kitai, T., and Kanki, T. (2002). “Decomposition of organic compounds in water by direct contact of gas corona discharge: Influence of discharge conditions.” Ind. Eng. Chem. Res., 41(24), 5906–5911.
Shanbhag, P. V., Guha, A. K., and Sirkar, K. K. (1998). “Membrane-based ozonation of organic compounds.” Ind. Eng. Chem. Res., 37(11), 4388–4398.
Sharma, A. K., Camaioni, D. M., Josephson, G. B., and Goheen, S. C. (2000). “Destruction of pentachlorophenol using glow discharge plasma process.” Environ. Sci. Technol., 34(11), 2267–2272.
Sheffer, S., and Esterson, G. L. (1982). “Mass transfer and reaction kinetics in the ozone/tap water system.” Water Res., 16(11), 383–389.
Sotelo, J. L., Beltran, F. J., Benitez, F. J., and Beltran-Heredia, J. (1989). “Henry’s law constant for the ozone–water system.” Water Res., 23(10), 1239–1246.
Stumm, W., and Morgan, J. J. (1970). Aquatic chemistry, Wiley, New York.
Wu, J. J., and Masten, S. J. (2001). “Mass transfer of ozone in semi batch stirred reactor.” J. Environ. Eng., 127(12), 1089–1099.
Zhou, H., and Smith, D. W. (2000). “Ozone mass transfer in water and wastewater treatment: Experimental observations using a 2D laser particle dynamic analyzer.” Water Res., 34(3), 909–921.
Zhou, H., Smith, D. W., and Stanley, S. J. (1994). “Modeling of dissolved ozone concentration profiles in bubble columns.” J. Environ. Eng., 120(4), 821–840.
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© 2008 ASCE.
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Received: Dec 29, 2006
Accepted: Mar 18, 2008
Published online: Oct 1, 2008
Published in print: Oct 2008
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