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http://dx.doi.org/10.14481/jkges.2011.12.6.2

Performance of Soil Flushing for Contaminated Soil Using Surfactant  

Lee, Chaeyoung (수원대학교 공과대학 토목공학과)
Jang, Yeongsu (수원대학교 공과대학 토목공학과)
Publication Information
Journal of the Korean GEO-environmental Society / v.12, no.6, 2011 , pp. 17-23 More about this Journal
Abstract
In this study, a series of experiments were carried out to remove total petroleum hydrocarbon(TPH) and toluene by soil flushing. In batch experiments, Triton X-100 and SWA 1503 showed TPH removal efficiency of 79.0% and 69.0%, respectively. Although the TPH removal efficiency increased as the surfactant was increased in the concentration range 1-11mmol/L, the optimum concentration was 1mmol/L, considering the ratio of the removal efficiency to the amount of surfactant injected. In column experiment, the optimal velocity was 0.3mL/min. The physical aquifer model(PAM) result revealed that the soil flushing removed as much as 5.5% of the toluene under 3 pore volume(PV) conditions. To improve the soil flushing efficiency, it is necessary to find optimal condition through recirculation or reuse of surfactant.
Keywords
PAM(Physical Aquifer Model); Surfactant; Soil flushing; TPH(Total Petroleum Hydrocarbon); Toluene;
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Times Cited By KSCI : 1  (Citation Analysis)
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