대한환경공학회지 (Journal of Korean Society of Environmental Engineers)

  • 제36권5호
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  • Pages.311-316
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  • 2014
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  • 1225-5025(pISSN)
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  • 2383-7810(eISSN)
대한환경공학회 (Korean Society of Environmental Engineers)
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오존-활성탄 복합공정에 의한 페놀 제거

Phenol Removal by Ozone-Activated Carbon Hybrid Process

  • 김환익 (경남과학기술대학교 환경공학과.녹색기술연구소) ;
  • 문지훈 (경남과학기술대학교 공동실험실습관) ;
  • 정재우 (경남과학기술대학교 환경공학과.녹색기술연구소)
  • Kim, Hwanik (Department of Environmental Engineering & Green Technology Institute, Gyeongnam National University of Science and Technology) ;
  • Moon, Ji-Hoon (Central Laboratory, Gyeongnam National University of Science and Technology) ;
  • Chung, Jae Woo (Department of Environmental Engineering & Green Technology Institute, Gyeongnam National University of Science and Technology)
  • 투고 : 2013.10.27
  • 심사 : 2014.04.25
  • 발행 : 2014.05.31
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초록

오존-활성탄 복합공정에 의한 페놀제거 특성과 그에 미치는 운전변수의 영향에 관해 회분식 실험을 통하여 동력학적 연구를 수행하였다. 활성탄은 오존의 자가분해를 촉진시켜 $OH{\cdot}$ 발생시키므로 페놀분해 속도를 증가시키는 것으로 나타났다. 활성탄의 투입량이 증가함에 따라 페놀분해 반응의 유사 일차반응 속도상수가 증가하고 페놀제거의 반감기가 감소하는 것으로 나타났다. 수용액의 pH 증가는 수산화이온이 개시하는 오존분해의 연쇄반응에 의해 $OH{\cdot}$를 생성시키므로 페놀분해 속도를 증가시키는 것으로 나타났다. 페놀의 완전산화 지표인 총유기탄소(TOC) 제거효율은 활성탄을 투입할 때 투입하지 않은 조건보다 약 3.2배 높은 결과를 얻을 수 있었다.

Effects of operating parameters such as activated carbon dose and pH on the phenol oxidation in ozone-activated carbon hybrid process were investigated through a kinetic study. Activated carbon enhanced the self-decomposition of ozone, generating $OH{\cdot}$, thus promoting phenol degradation. The pseudo-first order rate constants of phenol degradation increased and half-life of phenol decreased with activated carbon dose. The increase of pH enhanced $OH{\cdot}$ generation through chain reactions initiated by $OH^-$, therefore increasing the phenol degradation rate. TOC removal efficiency increased about 3.2 times by adding activated carbon in ozonation process.

키워드

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피인용 문헌

  1. Study on characteristics of specific hazardous substances in the industrial wastewater effluent vol.29, pp.3, 2016, https://doi.org/10.5806/AST.2016.29.3.114
  2. Effect of Operating Parameters on Methyl Orange Removal in Catalytic Ozonation vol.39, pp.7, 2017, https://doi.org/10.4491/KSEE.2017.39.7.412