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A Study on the Degradation of PAH in Organic and Aqueous Phases by Ozone  

Choi, Young Ik (Department of Environmental Engineering, Silla University)
Son, Hee-Jong (Water Quality Research Institute, Waterworks Headquarter)
Jung, Chul-Woo (Department of Environmental Engineering, Silla University)
Publication Information
Journal of Korean Society on Water Environment / v.22, no.6, 2006 , pp. 1123-1129 More about this Journal
Abstract
Pyrene of natural and anthropogenic sources is one of the toxic, mutagenic polycyclic aromatic hydrocarbons (PAHs) listed as priority pollutants. The objectives of this research are to break down pyrene by using ozonation, identify the intermediates and byproducts of pyrene, and test the biodegradability of intermediates and byproducts of pyrene in the aqueous phase. Since pyrene is non-polar, hexane was chosen as a solvent to effectively dissolve pyrene. Pyrene solutions were treated with ozone, as it has high oxidation capacity and electrophilic characteristic. After different ozonation pretreatment times (2, 3, and 10 minutes), intermediates of pyrene in the form of yellowish solid were collected from the hexane solution using a centrifuge. They were identified by gas chromatography/mass spectrometer (GC/MS). $BOD_5$, COD, and E-coli toxicity tests have been performed to assess the ozonation products.
Keywords
Biological; Chemical; Ozone; PAHs; Pyrene; Treatment;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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