Journal of Environmental Health Sciences (한국환경보건학회지)

Korean Society of Environmental Health (한국환경보건학회)
권호 표지

Effectiveness of One- and Dual-Stage Recycled-Water Systems in Slurry Bioreactor Treatment for Coal Tar-Contaminated Soil

콜타르 오염토양의 슬러리상 생물반응기 처리를 위한 일단 및 이단 재순환식 공정의 효율성

  • NamKoong, Wan (Konkuk University Innovative Environmental Technology Center) ;
  • Park, Jin-Hong (Korea Testing Laboratory) ;
  • Lee, Noh-Sup (Konkuk University Innovative Environmental Technology Center) ;
  • Kim, Joung-Dae (Department of Health & Environment, Hallym College) ;
  • Park, Joon-Seok (Department of Environmental Engineering, Samcheok National University)
  • 남궁완 (건국대학교 차세대환경기술센터) ;
  • 박진홍 (산업기술시험원) ;
  • 이노섭 (건국대학교 차세대환경기술센터) ;
  • 김정대 (한림성심대학 보건환경과) ;
  • 박준석 (삼척대학교 환경공학과)
  • Published : 2005.10.31
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Abstract

This research was performed to evaluate the effectiveness of one- and dual-stage recycled-water systems in slurry bioreactor treatment for coal tar-contaminated soil. Silty loam soil was used for this research. Coal tar and 14 target PAHs (Polycyclic Aromatic Hydrocarbons) concentration in the soil were determined with gas chromatography. There was no significant difference between removal efficiencies of one- and dual-stage recycled water systems in case of about 4,000 mg coar tar/kg. However, the dual-stage system increased significantly the removal efficiency in case of about 20,000 mg coar tar/kg and the first-order kinetic constant of the system was over 1.5 times higher than that of one-stage recycled water system. 3-Ring compounds in PAHs was removed completely within 30 days of operation. Coar tar was removed in over 96% through biodegradation and removed in about 4% by evaporation. High correlation coefficient($r^2=0.91$) was found between water solubility and removal efficiency of the cyclic compounds.

Keywords

References

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