Feasibility Study on Remediation for Railroad-contaminated Soil with Waste-lubricant

윤활유 유래 철도 오염토양의 정화방법 연구

  • Park, Sung-Woo (Department of Environmental Engineering, Kumoh National Institute of Technology) ;
  • Shin, Min-Chul (Department of Environmental Engineering, Kumoh National Institute of Technology) ;
  • Jeon, Chil-Sung (Department of Environmental Engineering, Kumoh National Institute of Technology) ;
  • Baek, Ki-Tae (Department of Environmental Engineering, Kumoh National Institute of Technology) ;
  • Lee, Jae-Young (Environments and Fire Control Research Team, Korea Railroad Research Institute)
  • 박성우 (금오공과대학교 환경공학과) ;
  • 신민철 (금오공과대학교 환경공학과) ;
  • 전칠성 (금오공과대학교 환경공학과) ;
  • 백기태 (금오공과대학교 환경공학과) ;
  • 이재영 (한국철도기술연구원 환경화재연구팀)
  • Published : 2008.04.30

Abstract

In this study, the feasibility of soil washing, chemical oxidation and sonication was investigated to treat lubricantcontaminated railroad soil. Tergitol, a non-ionic surfactant, was used as a washing agent with or without iso-propyl acohol as a cosolvent. However, it was not effective to remove lubricant from soil even though tergitol was the most effective washing agent for diesel-contaminated soil. The cosolvent reduced the overall washing efficiency. Chemical oxidation removed 30% of lubricant from contaminated soil. Soil washing after chemical oxidation extracted additionally 16-17% of lubricant. Sonication enhanced-soil washing showed enhanced overall efficiency of soil washing. Lubricant-contaminated soil should be remediated by the other technology used for diesel-contaminated soil.

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