Photochemical of Polychlorinated biphenyl by the photolysis and solvent

  • Hassan Asilian
  • Reza Gholamnia
  • Abbass Rezaee
  • Ahmad Jonidi Jafari
  • Ali Khavanin
  • Elmira Darabi

Abstract

Polychlorinated biphenyls (PCBs) are one group of persistent organic pollutants (POPs) that are of international concern because of global distribution, persistence, and toxicity. Removal of these compounds from the environment remains a very difficult challenge because the compounds are highly hydrophobic and have very low solubility in water. The photochemical reactor was of annular geometry with a cylindrical low-pressure mercury lamp. The whole Lamp was immersed in a reactor thermostat controlling the temperature at 32 ± 2 °C. The Polychlorinated biphenyls (PCBs) were analyzed by GC/ECD. The degradation of PCBs in terms of one, two and three lamp was 91.9%, 92.7% and 93% respectively. The degradation of PCBs in terms of use of 10% and 20% of total volume of solution of H2O2 were 88.8% and 93% respectively. The degradation of PCBs in terms of ratio to ethanol with oil transformer in 1:1, 2:1 and 3:1 was 83.4%, 92.5% and 93% respectively. The experiments show that UVC-photolysis of H2O2 leads to a degradation efficiency of PCBs in the presence of ethanol. @ JASEM

J. Appl. Sci. Environ. Manage. December, 2010, Vol. 14 (4) 107 - 112

Author Biographies

Hassan Asilian
Department of Occupational and Environmental Health, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
Reza Gholamnia
Faculty of Health, Safety and Environment, Shaheed Beheshti of Medical Science University
Abbass Rezaee
Department of Occupational and Environmental Health, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
Ahmad Jonidi Jafari
Department of Occupational Health, Faculty of Health, Iran of Medical Sciences, Tehran, Iran
Ali Khavanin
Department of Occupational and Environmental Health, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
Elmira Darabi
Department of Environment, Tehran, Iran
Section
Articles

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eISSN: 2659-1502
print ISSN: 1119-8362