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http://dx.doi.org/10.11001/jksww.2012.26.6.779

Degradation of 2-Chlorophenol in the Aqueous Phase by a Photo-Fenton Process  

Kim, Il-Kyu (부경대학교 환경공학과)
Publication Information
Journal of Korean Society of Water and Wastewater / v.26, no.6, 2012 , pp. 779-786 More about this Journal
Abstract
The degradation of 2-chlorophenol(2-CP) by various AOPs(Advanced Oxidation Processes) including the photo-Fenton process has been examined. In sole $Fe^{2+}$, UV or $H_2O_2$ process without combination, low removal efficiencies have been achieved. But the photo-Fenton process showed higher removal efficiency for degradation of 2-chlorophenol than those of other AOPs including the Fenton process and the UV processes. In the photo-Fenton process, the optimal experimental conditions of 2-chlorophenol degradation were obtained at pH 3 and the $Fe^{2+}/H_2O_2$molar ratio of 1. Also the 2-chlorophenol removal efficiency increased with decreasing of the initial 2-chlorophenol concentration. 3-chlorocatechol and chlorohydroquinone were identified as photo-Fenton reaction intermediates, and a degradation pathway of 2-chlorophenol in the aqueous phase during the photo-Fenton reaction was proposed.
Keywords
2-chlorophenol; Photo-Fenton; Fenton; UV;
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