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논문 기본 정보

자료유형
학술저널
저자정보
이규상 (한국농어촌공사 농어촌연구원) 김양빈 (한국농어촌공사 환경지질처) 장재선 (한국농어촌공사 농어촌연구원) 엄재연 (한국농어촌공사 농어촌연구원) 송성호 (한국농어촌공사 농어촌연구원) 김을영 (한국농어촌공사 환경지질처)
저널정보
한국지하수토양환경학회 지하수토양환경 지하수토양환경 제17권 제1호
발행연도
2012.1
수록면
13 - 21 (9page)

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This study reports a surfactant-enhanced in-situ remediation treatment at a test site which is located in a hilly terrain. The leakage oils from a storage tank situated on the top of the hill contaminated soils and groundwater in the lower elevation. Sixteen vertical injection wells (11 m deep) were installed at the top of the hill to introduce 0.1-0.5 vol.% of non-ionic Tween-80 surfactant. The contaminated area that required remediation treatment was about $1,650\;m^2$. Two cycles of injecting surfactant solution followed by water were repeated over approximately 7.5 months: first cycle with 0.5 month of surfactant injection followed by 3 months of water injection, and second cycle with 1 month of surfactant followed by 3 months of water injection. The seasonal fluctuation in groundwater table was also considered in the selection of periods for surfactant and water injection. The results showed that the initial Total Petroleum Hydrocarbon (TPH) concentration of 1,041 mg/kg (maximum 3,605 mg/kg) was reduced significantly down to 76.6 mg/kg in average. After 2nd surfactant injection process finished, average TPH concentration of soils was reduced to 7.5% compared to initial concentration. Also, average BTEX concentration of soils was reduced to 10.8%. This resultes show that the surfactant enhanced in-situ remediation processes can be applicable to LNAPL contaminated site in field scale.

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