Chlorophenols (CPs) are toxic nonbiodegradable pollutants. In recent decades, several alternative processes for the treatment of these compounds have been investigated. Advanced Oxidation Processes (AOPs) are some of the most promising technologies. Among them, the UV-based AOPs [, photo-Fenton, , , photocatalysis and photolysis] have previously been studied for the degradation of 2,4-dichlorophenol (DCP) in an aqueous solution at laboratory scale. In this paper, these techniques are compared and kinetic constants and pseudoquantum yields are estimated. and photo-Fenton seem to be the most effective. To study scale-up of these processes from the laboratory to a pilot plant operating with sunlight, equivalent photocatalytic experiments were carried out in such installations. The results are promising and show trends similar to those obtained in the laboratory with lamps. The data obtained have been used to calculate some scale-up factors, which have been employed to make a rough estimation of the amount of waste water that can be treated by the solar AOPs studied. The results obtained are encouraging and prove the feasibility of this type of technology.
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Research Papers
1.
World Health Organization
, http://www.who.int/quantifying-ehimpacts/global/en/ArticleEHP052002.pdfhttp://www.who.int/quantifying-ehimpacts/global/en/ArticleEHP052002.pdf, consulted on June 2005.2.
EC Directive 2000/60/EC of the European Parliament and of the Council of October 23, 2000 establishing a framework for community action in the flied of water policy (L 327 of 22-12-2000).
4.
Hayward
, K.
, 1998, “Drinking Water Contaminant Hit List for US EPA
,” Environ. Sci. Technol.
0013-936X, September–October, 4
, 1998.5.
Keith
, L. H.
, and Telliard
, W. A.
, 1979, “Priority Pollutants: A Prospective View
,” Environ. Sci. Technol.
0013-936X, 13
, pp. 416
–424
.6.
EC Decision 2455/2001/EC of the European Parliament and of the Council of November 20, 2001 establishing the list of priority substances in the field of water policy and amending Directive 2000/60/EC (L 331 of 12-12-2001).
7.
Roques
, H.
, 1996, Chemical Water Treatment
, VCH-Verlag
, Weinheim, Germany.8.
Howard
, P. H.
, 1989, “Handbook of Environmental Fate and Exposure Data for Organic Chemical
,” Large Production and Priority Pollutants
, Lewis Publishers
, Chelsea, MI, USA, Vol. I
.9.
EPA
, 1992, National Recommended Water Quality Criteria, Federal Register 57-60848.10.
Wegman
, R. C. C.
, and Van der Broek
, H. H.
, 1983, “Chlorophenols in river sediments in The Netherlands
,” Water Res.
0043-1354, 17
, p. 227
.11.
Jardim
, W. F.
, Moraes
, S. G.
, and Takiyama
, M. M. K.
, 1997, “Photocatalytic Degradation of Aromatic Chlorinated Compounds Using TiO2: Toxicity of Intermediates
,” Water Res.
0043-1354, 31
, pp. 1728
–1732
.12.
Glaze
, W. H.
, 1994, “An Overview of Advanced Oxidation Processes: Current Status and Kinetic Models
,” Chem. Oxid.
, 3
, pp. 44
–57
.13.
Pera-Titus
, M.
, Garcia-Molina
, V.
, Baños
, M. A.
, Giménez
, J.
, and Esplugas
, S.
, 2004, “Degradation of Chlorophenols by Jeans of Advanced Oxidation Processes: A General Review
,” Appl. Catal., B
0926-3373, 47
, pp. 219
–256
.14.
Esplugas
, S.
, Giménez
, J.
, Contreras
, S.
, Pascual
, E.
, and Rodríguez
, M.
, 2002, “Comparision of Different Advanced Oxidation Processes For Phenol Degradation
,” Water Res.
0043-1354, 36
, pp. 1034
–1042
.15.
Bauer
, R.
, and Fallmann
, H.
, 1997, “The Photo-Fenton Oxidation—A Cheap and Efficient Wastewater Treatment Method
,” Res. Chem. Intermed.
0922-6168, 23
, pp. 341
–354
.16.
Schrank
, S. G.
, Jose
, H. J.
, Moreira
, R. F. P. M.
, and Schroder
, H. Fr.
, 2004, “Comparison of Different Advanced Oxidation Process to Reduce Toxicity and Mineralisation of Tannery Wastewater
,” Water Sci. Technol.
0273-1223, 50
, pp. 329
–334
.17.
Braun
, A. M.
, Jacob
, L.
, Oliveros
, E.
, and do Nascimento
, C. A. O.
, “Up-Scaling Photochemical Reactions
,” in Advances in Photochemistry
, edited by D.
Volman
, G. S.
Hammond
, and D. C.
Neckers
, Wiley
, New York, 1993, Vol. 18
, pp. 235
–313
.18.
Boule
, P.
, Guyon
, C.
, and Lemaire
, J.
, 1984, “Photochemistry and Environment. VI. Direct Phototransformation of Chlorophenols and Interactions With Phenol on UV Exposure in Aqueous Solutions
,” Toxicol. Environ. Chem.
, 7
(2
), pp. 97
–110
.19.
Wong
, A. S.
, and Crosby
, D. G.
, 1981, “Photodecomposition of Pentachlorophenol in Water
,” J. Agric. Food Chem.
0021-8561, 29
, pp. 125
–130
.20.
Esplugas
, S.
, Vicente
, M.
, Ibarz
, A.
, Prat
, C.
, and Costa
, J.
, 1987, “Influence of Lamp Position on Available Radiation Flux in an Annular Photoreactor
,” Chem. Eng. J.
0300-9467, 34
, pp. 111
–115
.21.
Pignatello
, J. J.
, 1992, “Dark and Photoassisted Fe(III) Catalyzed Degradation of Chlorophenoxy Herbicides by Hydrogen Peroxide
,” Environ. Sci. Technol.
0013-936X, 26
, pp. 944
–951
.22.
Mazellier
, P.
, and Bolte
, M.
, 1996, “Photochemical Behaviour of 2,6 Dimethylbenzoquinone in the Absence and in the Presence of Iron (III)
,” J. Photochem. Photobiol., A
1010-6030, 98
, pp. 141
–147
.23.
Chen
, R.
, and Pignatello
, J. J.
, 1997, “Role of Quinone Intermediates as Electron Shuttles in Fenton and Photoassisted Fenton Oxidations of Aromatic Compounds
,” Environ. Sci. Technol.
0013-936X, 31
, pp. 2399
–2406
.24.
Hislop
, K. A.
, and Bolton
, J. R.
, 1999, “The Photochemical Generation of Hydroxyl Radicals in the UV-Vis/ferrioxalate/H2O2 System
,” Environ. Sci. Technol.
0013-936X, 33
, pp. 3119
–3126
.25.
Bolton
, J. R.
, Ravel
, M.
, Cater
, S. R.
, and Safarzadeh-Amiri
, A.
, 1996, “Homogeneous Solar Photodegradation of Contaminants in Water
,” Proceedings of the ASME International Solar Energy Conference
, San Antonio, TX, March 31-April 3, ASME
, New York
, pp. 53
–60
.26.
Fallmann
, H.
, Krutzler
, T.
, Bauer
, R.
, Malato
, S.
, and Blanco
, J.
, 1999, “Applicability of the Photo-Fenton Method for Treating Water Containing Pesticides
,” Catal. Today
0920-5861, 54
, pp. 309
–319
.27.
Bossmann
, S. H.
, Oliveros
, E.
, Gob
, S.
, Siegwart
, S.
, Dahlen
, E. P.
, Payawan
, L.
, Straub
, M.
, Worner
, M.
, and Braun
, A. M.
, 1998, “New Evidence Against Hydroxyl Radicals as Reactive Intermediates in the Termal and Photochemically Enhanced Fenton Reactions
,” J. Phys. Chem. A
1089-5639, 102
, pp. 5542
–5550
.28.
Blake
, D. M.
, November 2001, “Bibliography of Work on the Photocatalytic Removal of Hazardous Compounds from Water and Air
,” (update No. 4), NREL/TP-510-31319, National Renewable Energy Laboratory, Golden, Co.29.
Al Momani
, F.
, Sans
, C.
, and Esplugas
, S.
, 2004, “A Comparative Study of the Advanced Oxidation of 2,4-dichlorophenol
,” J. Hazard. Mater.
0304-3894, 107
, pp. 123
–129
.30.
Bayarri
, B.
, Giménez
, J.
, Curcó
, D.
, and Esplugas
, S.
, 2005, “Photocatalytic Degradation of 2,4-dichlorophenol by TiO2∕UV: Kinetics, Actinometries and models
,” Catal. Today
0920-5861, 101
, pp. 227
–236
.31.
Malato
, S.
, Blanco
, J.
, Campos
, A.
, Caceres
, J.
, Guillard
, C.
, Herrmann
, J. M.
, and Fernandez-Alba
, A. R.
, 2003, “Effect of Operating Parameters on the Testing of New Industrial Titania Catalysts at Solar Pilot Plant Scale
,” Drugs Pharm. Sci.
0360-2583, 42
, pp. 349
–357
.32.
Cantón
, C.
, Esplugas
, S.
, and Casado
, J.
, 2003, “Mineralization of Phenol in Aqueous Solution by Ozonation Using Iron or Copper Salts and Light
,” Appl. Catal., B
0926-3373, 43
, pp. 139
–149
.33.
Rabek
, J. F.
, 1982, Experimental Methods in Photochemistry and Photophysics
, Wiley
, Belfast, Chap. 27, pp. 937
–949
.34.
Curco
, D.
, Malato
, S.
, Blanco
, J.
, and Gimenez
, J.
, 1996, “Photocatalysis and Radiation Absorption in a Solar Plant
,” Sol. Energy Mater. Sol. Cells
0927-0248, 44
, pp. 199
–217
.35.
Blanco
, X.
, Malato
, S.
, Fernandez
, P.
, Vidal
, A.
, Morales
, A.
, Trincado
, P.
, Oliviera
, J. C.
, Minero
, C.
, Musci
, M.
, Casalle
, C.
, Brunotte
, M.
, Tratzky
, S.
, Dischinger
, N.
, Funken
, K.-H.
, Sattler
, C.
, Vincent
, M.
, Collares-Pereira
, M.
, Mendes
, J. F.
, and Rangel
, C. M.
, 1999, “Compound Parabolic Concentrator Technology Development to Commercial Solar Detoxification Applications
,” Sol. Energy
0038-092X, 67
(4-6
), pp. 317
–330
.36.
Herrmann
, J. M.
, 2001, “Active Agents in Heterogeneous Photocatalysis: Atomic Oxygen Species vs OH∙ Radicals: Related Quantum Yields
,” Helv. Chim. Acta
0018-019X, 84
, pp. 2731
–2750
.37.
Contreras
, S.
, 2002, “Degradation and Biodegradability Enhancement of Nitrobenzene and 2,4-Dichlorophenol by Means of Advanced Oxidation Processes Based on Ozone
,” Ph.D. thesis, http://www.tdx.cesca.es/TDX-0311103-135423/http://www.tdx.cesca.es/TDX-0311103-135423/.38.
Al-Momani
, F.
, 2003, “Combination of Photo-Oxidation Processes With Biological Treatment
,” Ph.D. thesis, http://tdcat.cesca.es/TDX-0702103-125031/index.htmlhttp://tdcat.cesca.es/TDX-0702103-125031/index.html.39.
Contreras
, S.
, Rodriguez
, M.
, Al Momani
, F. A.
, Sans
, C.
, and Esplugas
, S.
, 2003, “Contribution of Ozonation Pre-treatment to the Biodegradation of Aqueous Solutions of 2,4-Dichlorophenol
,” Cybernetics
0023-1274, 37
, pp. 3164
–3171
.40.
Adams
, C. D.
, Cozzens
, R. A.
, and Kim
, B. J.
, 1997, “Effects of Ozonation on the Biodegradability of Substituted Phenols
,” Water Res.
0043-1354, 31
, pp. 2655
–2663
.41.
Ormad
, M. P.
, Ovelleiro
, J. L.
, and Kivi
, J.
, 2001, “Photocatalytic Degradation of Concentrated Solutions of 2,4-Dichlorophenol Using Low Energy Light. Identification of Intermediates
,” Appl. Catal., B
0926-3373, 32
, pp. 157
–166
.42.
Jardim
, W. F.
, Moraes
, S. G.
, and Takiyama
, M. M. K.
, 1997, “Photocatalytic Degradation of Aromatic Chlorinated Compounds Using TiO2: Toxicity of Intermediates
,“ Water Res.
0043-1354, 31
, pp. 1728
–1732
.43.
Manilal
, V. B.
, Harida
, A.
, Alexander
, R.
, and Surender
, G. D.
, 1992, “Photocatalytic Treatment of Toxic Organics in Wastewater: Toxicity of Photodegradation Products
,” Water Res.
0043-1354, 26
, pp. 1035
–1038
.44.
Rao
, N. N.
, Dubey
, A. K.
, Mohanty
, S.
, Khare
, P.
, Jain
, R.
, and Kaul
, S. N.
, 2003, “Photocatalytic Degradation of 2-Chlorophenol: A Study of Kinetics, Intermediates and Biodegradability
,” J. Hazard. Mater.
0304-3894, 101
, pp. 301
–314
.45.
Blanco
, J.
, and Malato
, S.
, 2003, Solar Detoxification
, UNESCO Publishing
, pp. 165
–167
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