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디젤오염 철도토양의 토양세정법 적용을 위한 계면활성제 선정 연구
강해숙(Kang Hae-Suk),권태순(Kwon Tae-Soon),김희만(Kim Hee-Man),윤성택(Yun Sung-Taek),정우성(Jung Woo-Sung) 한국철도학회 2009 한국철도학회 학술발표대회논문집 Vol.2009 No.11월
Generally, the clean-up of oil-contaminated soil has been substantially conducted in the field. The soil pollution of railroad site has been caused by oil leakage at fueling or around UST. Therefore, in-situ soil flushing was performed using nonionic surfactant for diesel-contaminated railroad soil in this study. The basic properties of field soil were investigated and six kinds of nonionic-surfactants were tested including Tergitol 15-S-9, Tergitol NP10, Tween 85, Triton X-100, Brij 56 and Brij 76. As a result, Triton X-100 and Tergitol 15-S-9 showed the highest TPH removal efficiency. In conclusion, these results can be applied to remove diesel from contaminated railroad field using soil flushing.
선로분기기 주변 철도토양의 동전기-펜톤 공정 정화에 따른 전해질 농도의 영향
강해숙(Hae-Suk,Kang),정우성(Woo-Sung Jung),윤성택(Yun Sung-Taek),권태순(Kwon Tae-Soon),이철규(Lee Cheul-Kyu),김희만(Kim Hee-Man) 한국철도학회 2010 한국철도학회 학술발표대회논문집 Vol.2010 No.7
Generally, railroad soil around turnout was caused by leakage of lubricant oils during its maintenance. So, TPH concentration in soil was much higher than standard in Soil Envirnment Law. In additiont, railroad site was still difficult to assess due to railcar operation. This research was conducted to investigate the effect on electrolyte concentration during the Electrokinetic-Fenton process for contaminated soil around railroad turnout. As a result, experimental result shows that TPH removal in soil and amount of EOF were changed depending on electrolyte concentration. In future, the removal efficiency can be enhanced to optimize concentration in EK-Fenton Process.
2-D 반응기를 이용한 선로 하부 토양 내 유류 확산에 관한 연구
강해숙(Hae-Suk Kang),권태순(Tae-Soon Kwon),정우성(Woo-Sung Jung),이재영(Jae-Young Lee),조영민(Youngmin Cho),전용삼(Yong-Sam Jeon) 한국철도학회 2008 한국철도학회 학술발표대회논문집 Vol.- No.-
Generally, the soil around railroad is contaminated by the leakage of oil during its maintenance or the operation of rolling stock. Because the railroad soil is located under ballast and is hardened with the designated strength due to safety, the characteristics of the polluted site are different. In this study, the phenomena of oil diffusion in the railroad site was investigated using 2-D reactor. The used oil was lubricant. As a result, the maximum diffusion depth of lubricant was about 9.5 cm due to its high viscosity and the hardened soil. The lubricant was diffused by gravity more than by horizontal migration. In the future, these results can be applied to develop a remediation method for the contaminated railroad soil.