Heterogeneous Photocatalytic Degradation for Treatment of Oil from Wastewater
In the present study, advanced oxidation process / heterogeneous photocatalytic process (UV/TiO2/Fenton) system was investigated to the treatment of oily wastewater. The present study was conducted to evaluate the effect of hydrogen peroxide concentration H2O2, initial amount of the iron catalyst Fe+2, pH, temperature, amount of TiO2 and the concentration of oil in the wastewater. The removal efficiency for the system UV/TiO2/Fenton at optimal conditions and dosage (H2O2 = 400mg/L, Fe+2 = 40mg/L, pH=5, temperature =30oC, TiO2=75mg/L) for 1000mg/L load was found to be 77%.
Aluminum foil cover around the reactor and air bubbling were utilized in the experiments of photo Fenton UV/ H2O2/Fe+2 homogeneous and heterogeneous systems in order to improve the removal efficiency. The removal efficiency was improved to 81% for UV/TiO2/Fenton system . The reaction was found to be of a first order throughout the systems.
 Patterson, J.W., 1995,"Waste water Treatment Technology". Ann Arbor Inc., U.S.A.
 Muzyka V., Bogovski, S. , Viitak, A., and Veidebaum ,T., 2002, "Alterations of Heme Metabolism in Lymphocytes and Metal Content in Blood Plasma as Markers of Diesel Fuels Effects on Human Organism", Science of the Total Environment, Vol. 286, Pp.73-81.
 Grant R. J., Muckian ,L. M., Clipson, N. J. W., and Doyle ,E. M., 2007,"Microbial Community Changes during the Bioremediation of Creosote-Contaminated Soil Letters in Applied Microbiology", Vol. 44, Pp. 293-300.
 Iraqi preservation law, Law No. 2, 2001.
 Neyens, E., and Baeyens, J., 2003, "A review of Classic Fenton’s Peroxidation as an Advanced Oxidation Technique", Journal of Hazardous Materials B, Vol. 98, Pp. 33–50.
 Serpone, N., 1997, "Relative Photonic Efficiencies and Quantum Yields in Heterogeneous photocatalysis", Journal of Photochemistry and Photobiology A: Chemistry, Vol. 104, Pp. 1-12.
 Bessa, E., Sant’anna JR. ,G. L., and Dezotti, M.,2001 ,"Photocatalytic/H2O2 Treatment of Oil Field Produced Waters", Applied Catalysis B: Environmental,. Vol. 29, Pp. 125–134.
 Tony, M., Purcell, P. J., Zhao, Y. Q., Tayeb, A. M. and El- Sherbiny, M. F.,2009, "Photo–Catalytic Degradation of an Oil – Water Emulsion using the Photo – Fenton Treatment Process; Effects and Statistical Optimization", Journal of Environmental Science and Health , Part A , Vol. 44(2) ,Pp. 179-187.
 Chiu, K. , Lyn, D. A., Savoye ,P. and Blatchley, E. R. ,1999,"Effect of UV System Modifications on Disinfection Performance", Journal of Environmental Engineering, ASCE, Vol. 125(5), Pp. 459-469.
 Mustafa, Y. A., Abeer I. A. and Mothana E., 2013, "Removal of Oil from Wastewater by Advanced Oxidation Process / Homogeneous Process" , Journal of Engineering , vol.19, no.6 , Pp. 686-694.
 Saien, J. and Nejati, H., 2007,"Enhanced Photocatalytic Degradation of Pollutants in Petroleum Refinery Wastewater under Mild Condition" , Journal of Hazardous Materials, Vol. 148 , Pp. 491–495.
 Choi, W. and Hoffmann, M.R.,1997,"Novel Photocatalytic Mechanisms for CHCl, CHBr and CCl CO, Degradation and the Fate of Photogenerated Trihalomethyl Radicals on TiO2", Environ. Sci. Technol., Vol.37, p. 89.
 Trillas, M., Peral ,J. and Donenech ,X., 1996, "Photocatalyzed Degradation of Phenol, 2, 4-Dichlorophenol, Phenoxyacetic Acid and 2, 4-Dichlorophenoxyacetic Acid over TiO2 in a Flow System", J. Chem. Tech. Biotech, Vol.71, p. 237.
 Vohra, M.S. and Davies, A. P. ,2000, "TiO2 Assisted Photocatalysis of Lead-EDTA ", Water Res., Vol. 34 (3), p. 952.
 Andreozzi, R., Caprio, V., Insola, A., Longo ,G.and Tufano, V., 2000 ,"Photocatalytic Oxidation of 4-Nitrophenol in Aqueous TiO2 Slurries: An Experimental Validation of Literature Kinetic Models", J. Chem. Tech. Biotech, Vol. 75, p.131.
 Barakat , M.A, Tseng, J.M. and Huang, C. P., 2005,"Hydrogen Peroxide - Assisted Photocatalytic Oxidation of Phenolic Compounds", Appl. Catal., B., Vol. 59, p. 99–104.
Copyright: Open Access authors retain the copyrights of their papers, and all open access articles are distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution and reproduction in any medium, provided that the original work is properly cited. The use of general descriptive names, trade names, trademarks, and so forth in this publication, even if not specifically identified, does not imply that these names are not protected by the relevant laws and regulations. While the advice and information in this journal are believed to be true and accurate on the date of its going to press, neither the authors, the editors, nor the publisher can accept any legal responsibility for any errors or omissions that may be made. The publisher makes no warranty, express or implied, with respect to the material contained herein.