Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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The Humic Acid Treatment Characteristics by Ionized Gas and Combination with Activated Carbon

이온화가스와 활성탄을 이용한 휴믹산 처리에 관한 연구

  • Chung, Paul-Gene (Division of environmental and Chemical engineering, Chonbuk National University) ;
  • Lee, Eun-Ju (Division of environmental and Chemical engineering, Chonbuk National University) ;
  • Kim, Min-Jeong (Division of environmental and Chemical engineering, Chonbuk National University) ;
  • Cho, Sun-Young (Division of environmental and Chemical engineering, Chonbuk National University)
  • 정팔진 (전북대학교 환경화학공학부) ;
  • 이은주 (전북대학교 환경화학공학부) ;
  • 김민정 (전북대학교 환경화학공학부) ;
  • 조선영 (전북대학교 환경화학공학부)
  • Published : 2004.01.30
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Abstract

Laboratory studies were carried out to find out the characteristics of humic acid treatment by activated carbon and ionized gas, In order to increase oxidation power of ionized gas for treating organic matter, we used granular activated carbon. By using $UV_{254}$, easy analysis method, we calculated humic acid concentration and $SCOD_{cr}$ concentration. For an initial concentration of humic acid, 10, 50 and 100ppm, the reaction rate constant by $UV_{254}$ was $8.98{\times}10^{-3}$/min, $5.62{\times}10^{-3}$/min and $4.8{\times}10^{-3}$/min respectively due to the same flow rate of ionized gas. When we added activated carbon to the ionized gas for humic acid treatment, the reaction rate constant increased in 4.13, 3.65 and 3.15 times. So, by using activated carbon in treating humic acid by ionized gas, oxidation power of organic matter by ionized gas was increased. The hydrophobic fraction constitutes 98% of organic matter for humic acid at the beginning. After the treatment using ionized gas for humic acid, the hydrophobic fraction decreased by 63~65% and the hydrophilic one increased by 35~37%. So, it was proved that the treatment increased the hydrophilic fraction in organic matter.

Keywords

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