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http://dx.doi.org/10.7857/JSGE.2013.18.2.027

Investigation for TCE Migration and Mass Discharge Changes by Water Table Rising in Porous Media  

Lee, Dong Geun (School of Earth and Environmental Sciences, Seoul National University)
Moon, Hee Sun (Groundwater Department, Geologic Environment Division, Korea Institute of Geoscience and Mineral Resources)
Lee, Kang-Kun (School of Earth and Environmental Sciences, Seoul National University)
Publication Information
Journal of Soil and Groundwater Environment / v.18, no.2, 2013 , pp. 27-35 More about this Journal
Abstract
In this study, three dimensional and two dimensional laboratory experiments were conducted to investigate the effect of water table rising on DNAPL migration, contaminants mass discharge ($M_d$), and residual NAPL distribution. The accumulation of TCE in unsaturated zone was observed in both two and three dimensional experiments. This implies DNAPL sources could exist in unsaturated zone at contaminated sites. It has been investigated that the TCE concentration is proportional to the areal ratio of residual TCE. This means the residual TCE obviously could affect the TCE concentration in aquifer system. The results of the two-dimensional experiment indicated that the contaminant sources in unsaturated zone could lead the $M_d$ increasing with water table rising and the source zone heterogeneity could also highly affect the $M_d$.
Keywords
DNAPL; TCE; Migration; Contaminant mass discharge; Water table rising;
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