Journal of Soil and Groundwater Environment (한국지하수토양환경학회지:지하수토양환경)

Korean Society of Soil and Groundwater Environment (한국지하수토양환경학회)
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Oxidative Degradation of Phenol Using Zero-Valent Iron-Based Fenton-Like Systems

영가철 기반 펜톤 시스템을 활용한 페놀의 산화분해

  • Kim, Hak-Hyeon (School of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology (UNIST)) ;
  • Lee, Hye-Jin (School of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology (UNIST)) ;
  • Kim, Hyung-Eun (School of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology (UNIST)) ;
  • Lee, Hongshin (School of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology (UNIST)) ;
  • Lee, Byeong-Dae (Geologic Environment Division, Korea Institute of Geoscience and Mineral Resources (KIGAM)) ;
  • Lee, Changha (School of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology (UNIST))
  • 김학현 (울산과학기술대학교 도시환경공학부) ;
  • 이혜진 (울산과학기술대학교 도시환경공학부) ;
  • 김형은 (울산과학기술대학교 도시환경공학부) ;
  • 이홍신 (울산과학기술대학교 도시환경공학부) ;
  • 이병대 (한국지질자원연구원 지구환경연구본부) ;
  • 이창하 (울산과학기술대학교 도시환경공학부)
  • Received : 2013.06.19
  • Accepted : 2013.08.27
  • Published : 2013.08.31
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Abstract

For the last couple of decades, the Fenton (-like) systems have been extensively studied for oxidation of organic contaminants in water. Recently, zero-valent iron (ZVI) has received attention as a Fenton catalyst as well as a reducing agent capable of producing reactive oxidants from oxygen. In this study, the ZVI-based Fenton reaction was assessed for the oxidative degradation of phenol using $ZVI/O_2$, $ZVI/H_2O_2$, ZVI/Oxalate/$O_2$ and hv/ZVI/Oxalate/$O_2$ systems. Reaction parameters such as pH and reagent dose (e.g., ZVI, $H_2O_2$, and oxalate) were examined. In the presence of oxalate (ZVI/Oxalate/$O_2$ and hv/ZVI/Oxalate/$O_2$ systems), the degradation of phenol was greatly enhanced at neutral pH values. It was found that ZVI accelerates the Fenton reaction by reducing Fe(III) into Fe(II). The conversion of Fe(III) into Fe(II) by ZVI was more stimulated at acidic pH than at near-neutral pH values.

Keywords

References

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