The effect of hydrogen peroxide and solvent on photolysis of PCBs to reduce occupational exposure

Hasan Asilian; Reza Gholamnia; Abbas Rezaee; Ahmad Jonidi Jafari; Ali Khavanin; Elmira Darabi

Journal of Kermanshah University of Medical Sciences

Peer-reviewed Medical Quarterly

Current Issue All Issues In Press Accepted Manuscripts Search

Journal Information Boards and Committees Indexing and Listing Sources Journal Metrics Open Peer Review (OPR)Publication Ethics and Malpractice Statement Reviewer and AE Registration Form Contact Us Support

Authors Guide Submit Manuscript

The effect of hydrogen peroxide and solvent on photolysis of PCBs to reduce occupational exposure

Author(s):

Hasan Asilian¹,

Reza Gholamnia^1,*,

Abbas Rezaee¹,

Ahmad Jonidi Jafari²,

Ali Khavanin¹,

Elmira Darabi³

1Dept. of Occupational and Environmental Health, School of Medicine Sciences, Tarbiat Modares University, Tehran, Iran

2Dept. of Occupational Health, School of Health, Iran University of Medical Sciences, Tehran, Iran

3Labratory of Llife Environment Organization, Tehran, Iran

Journal of Kermanshah University of Medical Sciences:Vol. 14, issue 3; e79471

Published online:Dec 19, 2010

Article type:Research Article

Received:Sep 14, 2009

Accepted:Feb 16, 2010

How to Cite:Hasan AsilianReza GholamniaAbbas RezaeeAhmad Jonidi JafariAli KhavaninElmira Darabiet al.The effect of hydrogen peroxide and solvent on photolysis of PCBs to reduce occupational exposure.J Kermanshah Univ Med Sci.14(3):e79471.

Abstract

Background: Polychlorinated biphenyls (PCBs) are toxic bio-accumulate components and may increase risk of adverse effects on human health and the environment. For different social, technical and economic reasons, significant quantities of PCBs contaminated transformer oil are still in use or storied. The study aimed to determine the effect of hydrogen peroxide and solvent on photolysis of PCBs to reduce occupational exposure.

Methods: The photochemical annular geometry (500 ml volume) reactor was designed with a cylindrical low-pressure mercury lamp (UV-C Cathodeon TUV 6WE) with emission at 254 nm. The radiant power emitted by the lamp was 6w. The whole lamp was immersed in a reactor thermostat controlling of temperature at 32 ± 2 oC. The PCBs was determined using GC/ECD and data was analyzed by SPSS.

Results: Degradation of total PCBs in terms of %10 and %20 of volume of H2O2 were 41%, 75% and 94%, respectively. The degradation of total PCBs in terms of ratio to solvent with oil transformer in 1:1, 2:1 and 3:1 was 61%, 75% and 94%, respectively.

Conclusion: Our study show that UV-C photolysis of H2O2 leads to a degradation efficiency of PCBs only in the presence of isooctane, therefore indicating that the intermediates formation after ethanol oxidation are able to initiate PCBs degradation.

Keywords

Fulltext

References

1.
The references of this article is available on PDF.

comments