Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Degradation Characteristic of Endocrine Disruptors (DEP, NP) Using Combined Advanced Oxidation Processes (AOPs)

혼합된 고급산화공정(AOPs)을 이용한 내분비계장애물질(DEP, NP)의 분해특성 연구

  • Na, Seung-Min (School of Civil Environmental and Architecture, Korea University) ;
  • Ahn, Yun-Gyong (Korea Basic Science Institute) ;
  • Cui, Ming-Can (School of Civil Environmental and Architecture, Korea University) ;
  • Cho, Sang-Hyun (School of Civil Environmental and Architecture, Korea University) ;
  • Khim, Jee-Hyeong (School of Civil Environmental and Architecture, Korea University)
  • 나승민 (고려대학교 건축사회환경공학과) ;
  • 안윤경 (한국기초과학지원연구원, 서울센터 분석연구부) ;
  • 최명찬 (고려대학교 건축사회환경공학과) ;
  • 조상현 (고려대학교 건축사회환경공학과) ;
  • 김지형 (고려대학교 건축사회환경공학과)
  • Received : 2010.11.11
  • Accepted : 2011.01.05
  • Published : 2011.02.28
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Abstract

Diethyl phthalate (DEP) and nonylphenol (NP) are widely spread in the natural environment as an endocrine disruption chemicals (EDs). Therefore, in this study, ultrasound (US) and ultraviolet (UVC), including $TiO_2$, as advanced oxidation processes (AOPs) were applied to a DEP and NP contaminated solution. When only the application of US, the optimum frequency for significant DEP degradation and a high rate of hydrogen peroxide ($H_2O_2$) formation was 283 kHz. We know that the main mechanism of DEP degradation is radical reaction and, NP can be affected by both of radical reaction and pyrolysis through only US (sonolysis) process and combined US+UVC (sonophotolysis) process. At combined AOPs (sonophotolysis/sonophotocatalysis) such as US+UVC and US+UVC+$TiO_2$, significant degradation of DEP and NP were observed. Enhancement effect of sonophotolysis and sonophotocatalysis system of DEP and NP were 1.68/1.38 and 0.99/1.17, respectively. From these results, combined sonophotocatalytic process could be more efficient system to obtain a significant DEP and NP degradation.

Keywords

References

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