- Volume 32 Issue 1
Ozonation was investigated for its ability to remove pyruvic acid in a laboratory-scale batch reactor under various experimental conditions, including UV irradiation, TiO2 addition, and variations in temperature. An ozone flow rate of 1.0 L min-1 and a concentration of 75±5 mg L-1 were maintained throughout the experiment, and pH, COD, and TOC were measured at 10 min intervals during a 60 min reaction. Our results confirmed that the combination of UV irradiation and photocatalytic TiO2 in the ozonation reaction improved the removal efficiency of both COD and TOC in aqueous solution at 20℃. Pseudo first-order rate constants and activation energies were quantified based on the COD and TOC measurements. We observed that the O3/UV, O3/UV/TiO2 system increased mineralization and reduced the activation energy (Ea) necessary for pyruvic acid decomposition.
Activation energy;Ozonation;Pyruvic acid;TiO2 photocatalyst
- Al-Ekabi, H., Butters, B., Delany, D., Holden, W., Powell, T., Story, J., and Ollis, D. F. (1993). Photocatalytic Purification and Treatment of Water and Air, Elsevier Science Publishers B.V., Amsterdam, pp. 719-725.
- Alvarez, P. M., Beltrán, F. J., Pocostales, J. P., and Masa, F. J. (2007). Preparation and Structural Characterization of Co/Al2O3 Catalysts for the Ozonation of Pyruvic Acid, Applied Catalysis B: Environmental, 72(3), pp. 322-330. https://doi.org/10.1016/j.apcatb.2006.11.009
- Andreozzi, R., Caprio, V., Insola, A., Marotta, R., and Tufano, V. (1998). The Ozonation of Pyruvic Acid in Aqueous Solutions Catalyzed by Suspended and Dissolved Manganese, Water research, 32(5), pp. 1492-1496. https://doi.org/10.1016/S0043-1354(97)00367-9
- Andreozzi, R., Caprio, V., Marotta, R., and Tufano, V. (2001). Kinetic Modeling of Pyruvic Acid Ozonation in Aqueous Solutions Catalyzed by Mn(II) and Mn(IV) ions, Water research, 35(1), pp. 109-120. https://doi.org/10.1016/S0043-1354(00)00237-2
- Grgić, I., Nieto-Gligorovski, L. I., Net, S., Temime-Roussel, B., Gligorovski, S., and Wortham, H. (2010). Light Induced Multiphase Chemistry of Gas-phase Ozone on Aqueous Pyruvic and Oxalic Acids, Physical Chemistry Chemical Physics, 12(3), pp. 698-707. https://doi.org/10.1039/B914377G
- Beltrán, F. J., Acedoa, B., and Rivasa, F. J. (2007). Gimenoa, Pyruvic Acid Removal from Water by the Simultaneous Action of Ozone and Activated Carbon, Ozone: Science & Engineering, 27(2), pp. 159-169. https://doi.org/10.1080/01919510590925338
- Camel, V. and Bermond, A. (1998). The Use of Ozone and Associated Oxidation Processes in Drinking Water Treatment, Water research, 32(11), pp. 3208-3222. https://doi.org/10.1016/S0043-1354(98)00130-4
- Eckenfelder, W. W. (1989). Industrial Water Pollution Control, McGraw-Hill, New York, pp. 302-306.
- Guzman, M. I., Colussi, A. J., and Hoffmann, M. R. (2006). Photoinduced Oligomerization of Aqueous Pyruvic acid, The Journal of Physical Chemistry A, 110(10), pp. 3619-3626. https://doi.org/10.1021/jp056097z
- Hofmann, J., Freier, U., Wecks, M., and Demund, A. (2005). Degradation of Halogenated Organic Compounds in Ground Water by Heterogeneous Catalytic Oxidation with Hydrogen Peroxide, Topics in Catalysis, 33(1-4), pp. 243-247. https://doi.org/10.1007/s11244-005-2538-9
- Jeong, S. H. and Jeong. B. (2005). Effect of Ozone Oxidation on Biodegradability of Dissolved Organic Compounds in the Landfill Leachate, Journal of Korean Society on Water Environment, 21(1), pp. 1-6. [Korean Literature]
- Kasprzyk-Hordern, B., Ziółek, M., and Nawrocki, J. (2003). Catalytic Ozonation and Methods of Enhancing Molecular Ozone Reactions in Water Treatment, Applied Catalysis B: Environmental, 46(4), pp. 639-669. https://doi.org/10.1016/S0926-3373(03)00326-6
- Lee, C. G. and Kim, M. C. (2010). A Study of Ozonation Characteristics of Bis(2-chloroethyl) Ether, Applied Chemistry for Engineering, 21(6), 610-615. [Korean Literature]
- Qiang, Z., Liu, C., Dong, B., and Zhang, Y. (2010). Degradation Mechanism of Alachlor during Direct Ozonation and O3/H2O2 Advanced Oxidation Process, Chemosphere, 78(5), pp. 517-526. https://doi.org/10.1016/j.chemosphere.2009.11.037
- Pera-Titus, M., García-Molina, V., Baños, M. A., Giménez, J., and Esplugas, S. (2004). Degradation of Chlorophenols by Means of Advanced Oxidation Processes: A General Review, Applied Catalysis B: Environmental, 47(4), pp. 219-256. https://doi.org/10.1016/j.apcatb.2003.09.010
- Pichat, P., Disdier, J., Hoang-Van, C., Mas, D., Goutailler, G., and Gaysse, C. (2000). Purification/deodorization of Indoor Air and Gaseous Effluents by TiO2 Photocatalysis, Catalysis Today, 63(2), pp. 363-369. https://doi.org/10.1016/S0920-5861(00)00480-6
- Qiang, Z., Adams, C., and Surampalli, R. (2004). Determination of Ozonation Rate Constants for Lincomycin and Spectinomycin, Ozone: Science & Engineering, 26(6), pp. 525-537. https://doi.org/10.1080/01919510490885334
- Rivas, F. J., Carbajo, M., Beltrán, F. J., Acedo, B., and Gimeno, O. (2006). Perovskite Catalytic Ozonation of Pyruvic Acid in Water: Operating conditions influence and kinetics, Applied Catalysis B: Environmental, 62(1), pp. 93-103. https://doi.org/10.1016/j.apcatb.2005.07.002
- Seo, S. H., Ahn, K. H., Lee, J. K., Kim, G. J., Chu, K. H., Ra, Y. H., and Ko, K. B. (2010). Removal of Heavy Metals in the Acid Mine Drainage Using Ozone Oxidation Process, Journal of Korean Society on Water Environment, 26(5), pp. 725-731. [Korean Literature]
- Shiyun, Z., Xuesong, Z., Daotang, L., and Weimin, C. (2003). Ozonation of Naphthalene Sulfonic Acids in Aqueous Solutions: Part II-Relationships of Their COD, TOC Removal and the Frontier Orbital Energies, Water Research, 37(5), pp. 1185-1191. https://doi.org/10.1016/S0043-1354(02)00178-1
- Yoon, Y., Park, M., Kwon, M., Jung, Y., and Kang, J. (2013). A Two-Stage Process, O3 and Subsequent O3/H2O2, for Effective Color Removal from Leather-Dyeing Wastewater: Case Study in the D Industrial Wastewater Treatment Plan, Journal of Korean Society on Water Environment, 29(1), pp. 74-80. [Korean Literature]