Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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Degradation of 4-Chlorophenol by a Photo-Fenton Process with Continuous Feeding of Hydrogen Peroxide

과산화수소 연속주입식 광펜톤산화공정에 의한 4-염화페놀 분해연구

  • Kim, Il-Kyu (Department of Environmental Engineering, Pukyong National University)
  • Received : 2012.12.03
  • Accepted : 2013.02.04
  • Published : 2013.02.15
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Abstract

The degradation of 4-chlorophenol(4-CP) by various AOPs(Advanced Oxidation Processes) with continuous feeding of $H_2O_2$, including the ultraviolet/hydrogen peroxide, the Fenton and the photo-Fenton process has been investigated. The photo-Fenton process showed the highest removal efficiency for degradation of 4-chlorophenol than those of other AOPs including the Fenton process and the combined UV process with continuous feeding of $H_2O_2$. In the photo-Fenton process, the optimal experimental condition for 4-CP degradation was obtained at pH 3. Also the 4-CP removal efficiency increased with decreasing of the initial 4-CP concentration. 4-chlorocatechol and 4-chlororesorcinol were identified as photo-Fenton reaction intermediates, and the degradation pathways of 4-CP in the aqueous phase during the photo-Fenton reaction were proposed.

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References

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