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http://dx.doi.org/10.5806/AST.2008.21.3.201

Determination of byproducts after treatment in PCBs-containing transformer oils  

Shin, Sun Kyoung (National Institute of Environmental Reserch of Environmental Research)
Park, Jin Soo (National Institute of Environmental Reserch of Environmental Research)
Kang, Young Yeul (National Institute of Environmental Reserch of Environmental Research)
Hwang, Seung Ryul (National Institute of Environmental Reserch of Environmental Research)
Kim, Young Sik (Environment & Resources Corporation)
Publication Information
Analytical Science and Technology / v.21, no.3, 2008 , pp. 201-211 More about this Journal
Abstract
The treatment efficiency of PCBs containing wastes has been investigated. The samples treated by electron beam and de-chlorination method were analyzed to verify the byproducts before treatment and after treatment. In the treated samples by electron beam irradiation, PCBs were not detected by comparing the peak matching using the Korean official waste test method. On the other hand, PCBs congeners were detected by analyzing individual isotope method using HRGC/HRMS. Most of PCB congeners in waste were decomposed to 3-chlorobiphenyls, lower chlorinated congener produced during the treatment of electron beam. In the chemical dechlorination treatment, it was found that the concentrations of PCBs in treated samples were lower than those of regulation criteria in Waste & POPs management law and the after treatment concentration were satisfied to the regulation criteria. Also, dioxins were not observed after the physio-chemical treatment processes of PCBs containing wastes.
Keywords
PCBs; transformer oil; dechlorination; the degradation products;
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