Journal of Environmental Health Sciences (한국환경보건학회지)

Korean Society of Environmental Health (한국환경보건학회)
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Treatment Performance and Microbial Community Structure in BAC-process Treating Contaminated Groundwater by Water-soluble Cutting Oil

생물활성탄을 이용한 절삭유로 오염된 지하수의 처리특성과 미생물군집구조 해석

  • Lim Byung-Ran (Division of Environmental Eng. And Biotechnology & Institute for Industrial Technology, Myoungji University) ;
  • Bae Ci Ae (Dept. of Health and Hygiene, Shinheung College) ;
  • Lim Ho-Ju (Dept. of Preventive Medicine, College of Medicine, The Catholic University of Korea) ;
  • Cho Chang-Ho (Dept. of Environmental Engineering, Seoul National University of Technology)
  • 임병란 (명지대학교 환경생명공학부 & 산업기술연구소) ;
  • 배시애 (신흥대학 보건위생학과) ;
  • 임호주 (가톨릭대학교 의과대학) ;
  • 조창호 (서울산업대학교 환경공학과)
  • Published : 2006.02.01
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Abstract

Treatment performance and microbial community structure were investigated in water-soluble cutting oil treatment process using biological activated carbon. DOC removal in BACI column at $15^{\circ}C$ was higher than at $25^{\circ}C$, but those of BAC3 column after 60days was high at$25^{\circ}C$. Also, quinone content of first-step reactors at $25^{\circ}C$ and $15^{\circ}C$ was much the same, but those of the third-step reactor at $25^{\circ}C$ was higher than at $15^{\circ}C$. The dominant type of two apparatus was ubquinone (UQ)-l 0 followed by UQ-8. Menaquinones were detected from $25^{\circ}C$ apparatus and effluent. This suggested that DOC removal at $25^{\circ}C$ was advanced degradation by attached microorganisms on the activated carbon surface. The DOC removal in long-term activated carbon apparatus increased with going in BAC3 column. This indicated the influent of POC was a result of DOC removal efficiency decrease. Integrated DOC removal from start point in experiment to break point and quinone content were showed a tendency of increasing with going last-step activated carbon apparatus. Therefore, the biological activated carbon apparatus used by this study was effective treatment process in contaminated groundwater by water-soluble cutting oil.

Keywords

References

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