Removal of Acid Red 14 from Contaminated Water Using UV/S2O82- Advanced Oxidation Process

Document Type : Research Paper


1 Assist. Prof of Applied Chemistry, Dept. of Chemistry and Environmental Sciences, Faculty of Sciences, Zanjan University, Zanjan

2 M.Sc. of Applied Chemistry, Dept. of Chemistry, Islamic Azad University of Zanjan, Zanjan

3 M.Sc. of Applied Chemistry, Dept. of Molecular Medicine, School of Medicine, Zanjan University of Medical Sciences, Zanjan


The present study investigates the degradation of Acid Red 14 (AR14), commonly used as a textile dye in aqueous medium through the oxidation process by UV /S2O82- under a set of variables concentration of S2O82-, Ag+, AR14 and temperature. Commonly Ag+, heat and UV light can excite S2O82 to sulfate radical form (SO4−•), a stronger oxidant (E0 = 2.60 V) than S2O82, to enhance significantly the oxidation of contaminants. Also the changes in the absorption spectra of AR14 solutions during the photoxidation process showed that decrease of absorption peak of the dye at λmax = 514 nm indicates a rapid degradation of the azo dye. The results of this study suggest that the oxidative treatment of AR14 by peroxydisulfate with UV is a viable option for removal of the textile dyes from effluents.


1- Al-Momani, F., Touraud, E., and Degorce-Dumas, J.R. (2002). “Biodegradability enhancement of textile dyes and textile wastewater by UV photolysis.” J. of Photochem. Photobiol., 153, 191-197.
2- Mohan, S.V., Roa, C.N., Prasad, K.K., and Karthikeyan, J. (2002). “Treatment of simulated reactive yellow 22 (Azo) dye effluents using Spirogyra species.” Waste Manage., 22, 575-582.
3- Saadatjou, N., Rasoulifard, M. H., and Heidari, A. (2009). “Removal of Basic Red 46 using low-cost adsorbent of hardened paste of Portland cement from contaminated water.” J. of Color. Sci. Tech., 2 (4), 221-226.
4- Daneshvar, N., Khataee, A. R.,  Rasoulifard, M. H., and Pourhassan, M. (2007). “Biodegradation of dye solution containing malachite green: Optimization of effective parameters using Taguchi method.” J. of Hazard. Mater., 143, 214-219.
5- Daneshvar, N., Khataee, A. R.,  Rasoulifard, M. H., and Dorraji, M. S. (2007). “Removal of organic dyes from industrial wastewaters using UV/H2O2, UV/ H2O2/Fe (II), UV/ H2O2/Fe (III) processes.” J. of Water and Wastewater, 61, 34-42. (In Persian)
6- Huang, K. C., Zhao, Z., Hoag, G. E., Dahmani, A., and  Block, P. A. (2005). “Degradation of volatile organic compounds with thermally activated peroxydisulfate oxidation.” Chemosphere, 61, 551-560.
7- Salari, D., Niaei, A., Aber, S., and Rasoulifard, M.H. (2009). “The photooxidative destruction of C.I. Basic Yellow 2 using UV/S2O82 process in a rectangular continuous photoreactor.” J. Hazard. Mater., 166, 61-66.
8- Oh, S-Y., Kim, H., Park, J. M., Park, H. S., and Yoon, C. (2009). “Oxidation of polyvinyl alcohol by peroxydisulfate activated with heat, Fe2+, and zero-valent iron.” J. of Hazard. Mater.,168, 346-351.
9- Huang, Y. F., and Huang, Y. H. (2009). “Identification of produced powerful radicals involved in the mineralization of bisphenol A using a novel UV-Na2S2O8/H2O2-Fe (II,III) two-stage oxidation process.” J. of Hazard. Mater., 162, 1211-1216.
10- Devi Gomathi, L., Girish Kumar, S., and Mohan Reddy, K. (2009). “Photo Fenton like process Fe3+/(NH4)2S2O8/UV for the degradation of di azo dye congo red using low iron concentration.” Cent. Eur. J. Chem, 7(3), 468-477.
11- George, P., and Anipsitakis, D. (2004). “Transition metal/UV-based advanced oxidation technologies for water decontamination.” Appl. Catal. B: Environ., 54, 155-163.
12- McCallum, J. E. B., Madison, S. A., Alkan, S., Depinto, R. L., and Wahl, R. U. R. (2000). “Analytical studies on the oxidative degradation of the reactive textile dye Uniblue A.” Environ. Sci. Technol., 34 (24), 5157-5164.
13- Huang, K.C., Couttenye, R.A., and Hoag, G.E. (2002). “Kinetics of heat-assisted peroxydisulfate oxidation of Methyl Tert-Butyl Ether (MTBE).” Chemosphere, 49, 413-420.
14- Gemeay, A.H., Habib, A.F. M., Borhan El-Din, and Mo, A. (2007). “Kinetics and mechanism of the uncatalyzed and Ag(I)-catalyzed oxidative decolorization of Sunset Yellow and Ponceau 4R with peroxydisulphate.” Dyes Pigments, 74, 458-463.
15- Evseev, A. K., Khubutiya, M. Sh., Gol’din, M. M., Volkov, A. G., and Koldaev, A. A. (2008). “Electrochemical synthesis of peroxodisulfates from dilute sulfate solutions for detoxification of biological media.” Russ J. Electrochem, 44 (8), 901-909.
16- Daneshvar, N., Salari, D., and Khataee, A. R. (2004). “Photocatalytic degradation of azo dye acid red 14 in water on ZnO as an alternative catalyst to TiO2.” J. Photochem. Photobiol., 162, 317-322.
17- Mills, A., and Valenzuela Miguel, A. (2004). “The photo-oxidation of water by sodium persulfate, and other electron acceptors, sensitised by TiO2.” J. Photochem. Photobiol. A: Chemistry,165, 25-34.
18- Khataee, A.R., Pons, M.N., and Zahraa, O. (2009). “Photocatalytic degradation of three azo dyes using immobilized TiO2 nanoparticles on glass plates activated by UV light irradiation: Influence of dye molecular structure.” J. of Hazard. Mater., 168, 451-457.