• Enhancement of Phenanthrene Sorption Rate on Natural Manganese Oxide Using the Oxidative Coupling Reaction of Phenanthrene
  • Jeon Sun-Young;Park Jae-Woo;Shin Won-Sik;Ko Seok-Oh;
  • Department of Water and Wastewater Treatment, Shinwoo Engineering;Department of Environmental Engineering, Hanyang University;Department of Environmental Engineering, Kyungpook National University;Department of Civil Engineering, Environmental Research Center, Kyunghee University;
  • 천연망간산화물에 의한 클로로페놀의 산화결합생성물을 매개로 한 다환방향족화합물(PAH) 오염물의 고정화 효과
  • 전선영;박재우;신원식;고석오;
  • 신우엔지니어링 상하수도 사업부;한양대학교 토목공학과;경북대학교 환경공학과;경희대학교 토목건축공학부, 환경연구센터;
Abstract
The sorption/desorption characteristics of phenanthrene on the natural manganese oxide (NMD) were investigated in the presence of phenolic compounds. 4-chlorophenol (4-CP) was effectively oxidized by NMD catalyzed reaction and transformed into humic-like macromolecular compound through inter-or cross-coupling reaction between byproducts. As 4-CP was degraded with time, sorbed amount of phenanthrene on NMD was significantly increased, resulting from the formation of oxidative coupling products. These results imply that NMD can be used for simultaneous treatment of phenolic contaminants and polycyclic aromatic hydrocarbons (PAHs) in soils, sediments, or water. Also, sorbed phenanthrene on NMD in the presence of 4-CP showed high degree of desorption resistance, indicating that sequestration process of phenanthrene was ongoing with time.

본 연구에서는 다환방형족화합물의 하나인 phenanthrene를 이용하여 천연망간산화물에 흡착/탈착되는 특성을 평가하였다. 토양, 퇴적물이나 수체에 다양한 오염물이 동시에 존재하는 경우를 고려하여 페놀계 오염물이 있는 경우, 다환 방형족화합물의 흡탈착에 미치는 영향을 조사하였다. 망간산화물에 의하여 4-클로로페놀은 효과적으로 산화되었으며 반응산물은 고분자화(휴믹화) 되는 경향을 나타내었다. 4-클로로페놀이 분해됨에 따라 망간산화물 표면에 흡착되는 phenanthrene의 양은 급격히 증가하였다. 또한, 4-클로로페놀이 존재하는 경우 흡착된 phenanthrene의 탈착에 대한 저항성은 4-클로로페놀 농도가 증가할수록 강하게 나타남으로써 고분자화된 4-클로로페놀 반응산물에 phenanthrene이 강하게 흡착되어 있다는 결과를 도출하였다. 결과적으로 망간산화물은 페놀계 오염물과 다환방향족화합물을 동시에 처리하는데 효과적으로 사용될 수 있음을 보여주었다.

Keywords: Manganese oxide;Chlorophenol;Polycyclic aromatic hydrocarbon;Sorption;Desorption;

Keywords: 망간산화물;클로로페놀;다환방향족화합물;흡착;탈착;

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This Article

  • 2005; 10(5): 45-51

    Published on Oct 1, 2005