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Photochemical degradation of diethyl phthalate with UV/H2O2.
J Hazard Mater. 2007 Jan 02; 139(1):132-9.JH

Abstract

The decomposition of diethyl phthalate (DEP) in water using UV-H2O2 process was investigated in this paper. DEP cannot be effectively removed by UV radiation and H2O2 oxidation alone, while UV-H2O2 combination process proved to be effective and could degrade this compound completely. With initial concentration about 1.0mg/L, more than 98.6% of DEP can be removed at time of 60 min under intensity of UV radiation of 133.9 microW/cm2 and H2O2 dosage of 20mg/L. The effects of applied H2O2 dose, UV radiation intensity, water temperature and initial concentration of DEP on the degradation of DEP have been examined in this study. Degradation mechanisms of DEP with hydroxyl radicals oxidation also have been discussed. Removal rate of DEP was sensitive to the operational parameters. A simple kinetic model is proposed which confirms to pseudo-first order reaction. There is a linear relationship between rate constant k and UV intensity and H2O2 concentration.

Authors+Show Affiliations

State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

16870331

Citation

Xu, Bin, et al. "Photochemical Degradation of Diethyl Phthalate With UV/H2O2." Journal of Hazardous Materials, vol. 139, no. 1, 2007, pp. 132-9.
Xu B, Gao NY, Sun XF, et al. Photochemical degradation of diethyl phthalate with UV/H2O2. J Hazard Mater. 2007;139(1):132-9.
Xu, B., Gao, N. Y., Sun, X. F., Xia, S. J., Rui, M., Simonnot, M. O., Causserand, C., & Zhao, J. F. (2007). Photochemical degradation of diethyl phthalate with UV/H2O2. Journal of Hazardous Materials, 139(1), 132-9.
Xu B, et al. Photochemical Degradation of Diethyl Phthalate With UV/H2O2. J Hazard Mater. 2007 Jan 2;139(1):132-9. PubMed PMID: 16870331.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Photochemical degradation of diethyl phthalate with UV/H2O2. AU - Xu,Bin, AU - Gao,Nai-Yun, AU - Sun,Xiao-Feng, AU - Xia,Sheng-Ji, AU - Rui,Min, AU - Simonnot,Marie-Odile, AU - Causserand,Christel, AU - Zhao,Jian-Fu, Y1 - 2006/06/15/ PY - 2006/03/22/received PY - 2006/06/02/revised PY - 2006/06/06/accepted PY - 2006/7/28/pubmed PY - 2007/4/11/medline PY - 2006/7/28/entrez SP - 132 EP - 9 JF - Journal of hazardous materials JO - J Hazard Mater VL - 139 IS - 1 N2 - The decomposition of diethyl phthalate (DEP) in water using UV-H2O2 process was investigated in this paper. DEP cannot be effectively removed by UV radiation and H2O2 oxidation alone, while UV-H2O2 combination process proved to be effective and could degrade this compound completely. With initial concentration about 1.0mg/L, more than 98.6% of DEP can be removed at time of 60 min under intensity of UV radiation of 133.9 microW/cm2 and H2O2 dosage of 20mg/L. The effects of applied H2O2 dose, UV radiation intensity, water temperature and initial concentration of DEP on the degradation of DEP have been examined in this study. Degradation mechanisms of DEP with hydroxyl radicals oxidation also have been discussed. Removal rate of DEP was sensitive to the operational parameters. A simple kinetic model is proposed which confirms to pseudo-first order reaction. There is a linear relationship between rate constant k and UV intensity and H2O2 concentration. SN - 0304-3894 UR - https://www.unboundmedicine.com/medline/citation/16870331/Photochemical_degradation_of_diethyl_phthalate_with_UV/H2O2_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(06)00646-7 DB - PRIME DP - Unbound Medicine ER -