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A Study on the degradation of Lindane in water by a Photo-Fenton process and a UV/$H_2O_2$ process  

Lee, Ju-Hyun (부경대학교 환경공학과)
Choi, Hye-Min (부경대학교 환경공학과)
Kim, Il-Kyu (부경대학교 환경공학과)
Publication Information
Journal of Korean Society of Water and Wastewater / v.24, no.1, 2010 , pp. 109-117 More about this Journal
Abstract
In the present study, the degradation characteristics of Lindane by Advanced Oxidation Processes(UV/$H_2O_2$, Photo-Fenton process) were studied. The degradation efficiency of Lindane in aqueous solution was investigated at various initial pH values, Fenton's reagent concentrations and initial concentrations of Lindane. GC-ECD was used to analyze lindane. Lindane has not been degraded without application of AOPs over two hours. But, approximately 5% of lindane was degraded with UV or $H_2O_2$ alone. Lindane with UV/$H_2O_2$ process showed approximately 7% higher removal efficiency than $H_2O_2$ process. In the UV/$H_2O_2$ process, the pH values did not affect the removal efficiency. The optimal mole ratio of $H_2O_2/Fe^{2+}$ for lindane degradation is about 1.0 in Photo-Fenton process. Also, the experimental results showed that lindane removal efficiency increased with the decrease of initial concentration of lindane. Under the same conditions, the order lindane of removal efficiency is as following : Photo-Fenton process > UV/$H_2O_2$ process > $H_2O_2$ process. In addition, intermediate products were identified by GC-MS techniques. Than PCCH(Pentachlorocyclohexene) was identified as a reaction intermediate of the Photo-Fenton process.
Keywords
Lindane; Photo-Fenton; UV/$H_2O_2$; AOP; GC-ECD;
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Times Cited By KSCI : 3  (Citation Analysis)
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