Articles & Issues
- Language
- English
- Conflict of Interest
- In relation to this article, we declare that there is no conflict of interest.
- Publication history
-
Received October 25, 2002
Accepted May 19, 2003
-
This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright © KIChE. All rights reserved.
All issues
Removal of Paraquat in Aqueous Suspension of TiO2 in an Immersed UV Photoreactor
Joon-Chul Lee
Moon-Sun Kim1
Chul Kyung Kim2
Chan-Hwa Chung1
Sung M. Cho1
Gui Young Han1
Ki June Yoon1
Byung-Woo Kim1†
Department of Chemical Engineering, KAIST, Daejeon 305-701, Korea 1Department of Chemical Engineering, Sungkyunkwan University, Suwon 440-746, Korea 2Division of Chemistry & Applied Chemistry, Mokwon University, Daejeon 302-729, Korea
bwkim@skku.ac.kr
Korean Journal of Chemical Engineering, September 2003, 20(5), 862-868(7), 10.1007/BF02697289
Download PDF
Abstract
Experiments were performed to investigate the effect of operating parameters on the photodegradation efficiency of paraquat in a TiO2-suspended photoreactor with immersed UV lamps. TiO2 particles were prepared by a hydrothermal method. The removal rate of paraquat in the reactor was 0.54 mg/l/h with only air-sparging. The removal rate in 24 h with both the UV radiation and air-sparging was 50% higher than that with only the UV radiation. Variations of the paraquat concentration at the UV intensities of 4 and 8W/m2 decreased slowly with time, but that at 12W/m2 decreased more rapidly. The removal efficiency at the air-sparging flow rate of 1 l/min increased as a UV light intensity increased. pH value in the reactor at the UV intensity of 12W/m2 decreased with time until 12 h and then increased with time over 12 h.
References
Roukas T, Mantzouridou F, J. Chem. Technol. Biotechnol., 76(4), 371 (2001)
Braun SS, Maurette MT, Oliveros E, "Photochemical Technology," John Wiley & Sons, Inc., New York, U.S.A., 153 (1991)
Chen JY, Wen CM, Chen TL, Biotechnol. Bioeng., 62(3), 311 (1999)
Cho YS, Seo KW, Korean J. Chem. Eng., 19(4), 688 (2002)
Choi YS, Kim BW, J. Chem. Technol. Biotechnol., 75(12), 1145 (2000)
Davis AP, "Photocatalytic Oxidation of Organic Contaminants in Process Engineering for Pollution Control and Waste Minimization," Marcel Dekker Inc., New York, U.S.A., 377 (1994)
Fernandez A, Lassaletta G, Jimenez VM, Justo A, Gonzalezelipe AR, Herrmann JM, Tahiri H, Aitichou Y, Appl. Catal. B: Environ., 7(1-2), 49 (1995)
Herrmann JM, Tahiri H, Aitichou Y, Lassaletta G, Gonzalezelipe AR, Fernandez A, Appl. Catal. B: Environ., 13(3-4), 219 (1997)
Hoffmann MR, Martin ST, Choi WY, Bahnemann DW, Chem. Rev., 95(1), 69 (1995)
Kuo WS, Lin YT, J. Environ. Sci. Health Part B-Pestic. Food Contam. Agric. Wastes, 35(1), 61 (2000)
Lee JC, Kim MS, Kim BW, Water Res., 36, 1776 (2002)
Legrini O, Oliveros E, Braun AM, Chem. Rev., 93, 671 (1993)
Lindner M, Theurich J, Bahnemann DW, Water Sci. Technol., 35(4), 79 (1997)
Martyanov IN, Savinov EN, Catal. Today, 39(3), 197 (1997)
Matsunaga T, Okochi M, Environ. Sci. Technol., 29, 501 (1995)
Matthews RW, Water Res., 20, 569 (1986)
Mazzarino I, Piccinini P, Spinelli L, Catal. Today, 48(1-4), 315 (1999)
Molinari R, Mungari M, Drioli E, Di Paola A, Loddo V, Palmisano L, Schiavello M, Catal. Today, 55(1-2), 71 (2000)
Neves JM, Teixeira JA, Simoes N, Mota M, Biotechnol. Bioeng., 72(3), 369 (2001)
Ollis DF, Environ. Sci. Technol., 19, 480 (1985)
Pope JD, Benner JE, J. AOAC, 57(1), 202 (1974)
Pozzo RL, Baltanas MA, Cassano AE, Catal. Today, 39(3), 219 (1997)
Shiraishi F, Toyoda K, Fukinbara S, Obuchi E, Nakano K, Chem. Eng. Sci., 54(10), 1547 (1999)
Tennakone KI, Kottegoda RM, J. Photochem. Photobiol. A-Chem., 93, 79 (1996)
Valladares JE, "A New Photocatalytic Reactor for the Photodegradation of Organic Contaminants in Water," Ph.D. Thesis, Western Ontario University, Canada (1995)
Wu ZL, Yuan YJ, Xing Y, Hu ZD, Chem. Eng. Technol., 23(12), 1111 (2000)
Braun SS, Maurette MT, Oliveros E, "Photochemical Technology," John Wiley & Sons, Inc., New York, U.S.A., 153 (1991)
Chen JY, Wen CM, Chen TL, Biotechnol. Bioeng., 62(3), 311 (1999)
Cho YS, Seo KW, Korean J. Chem. Eng., 19(4), 688 (2002)
Choi YS, Kim BW, J. Chem. Technol. Biotechnol., 75(12), 1145 (2000)
Davis AP, "Photocatalytic Oxidation of Organic Contaminants in Process Engineering for Pollution Control and Waste Minimization," Marcel Dekker Inc., New York, U.S.A., 377 (1994)
Fernandez A, Lassaletta G, Jimenez VM, Justo A, Gonzalezelipe AR, Herrmann JM, Tahiri H, Aitichou Y, Appl. Catal. B: Environ., 7(1-2), 49 (1995)
Herrmann JM, Tahiri H, Aitichou Y, Lassaletta G, Gonzalezelipe AR, Fernandez A, Appl. Catal. B: Environ., 13(3-4), 219 (1997)
Hoffmann MR, Martin ST, Choi WY, Bahnemann DW, Chem. Rev., 95(1), 69 (1995)
Kuo WS, Lin YT, J. Environ. Sci. Health Part B-Pestic. Food Contam. Agric. Wastes, 35(1), 61 (2000)
Lee JC, Kim MS, Kim BW, Water Res., 36, 1776 (2002)
Legrini O, Oliveros E, Braun AM, Chem. Rev., 93, 671 (1993)
Lindner M, Theurich J, Bahnemann DW, Water Sci. Technol., 35(4), 79 (1997)
Martyanov IN, Savinov EN, Catal. Today, 39(3), 197 (1997)
Matsunaga T, Okochi M, Environ. Sci. Technol., 29, 501 (1995)
Matthews RW, Water Res., 20, 569 (1986)
Mazzarino I, Piccinini P, Spinelli L, Catal. Today, 48(1-4), 315 (1999)
Molinari R, Mungari M, Drioli E, Di Paola A, Loddo V, Palmisano L, Schiavello M, Catal. Today, 55(1-2), 71 (2000)
Neves JM, Teixeira JA, Simoes N, Mota M, Biotechnol. Bioeng., 72(3), 369 (2001)
Ollis DF, Environ. Sci. Technol., 19, 480 (1985)
Pope JD, Benner JE, J. AOAC, 57(1), 202 (1974)
Pozzo RL, Baltanas MA, Cassano AE, Catal. Today, 39(3), 219 (1997)
Shiraishi F, Toyoda K, Fukinbara S, Obuchi E, Nakano K, Chem. Eng. Sci., 54(10), 1547 (1999)
Tennakone KI, Kottegoda RM, J. Photochem. Photobiol. A-Chem., 93, 79 (1996)
Valladares JE, "A New Photocatalytic Reactor for the Photodegradation of Organic Contaminants in Water," Ph.D. Thesis, Western Ontario University, Canada (1995)
Wu ZL, Yuan YJ, Xing Y, Hu ZD, Chem. Eng. Technol., 23(12), 1111 (2000)
