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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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초록· 키워드
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The contamination of chlorinated ethenes at an industrial complex, Wonju, Korea, was examined based on sixteen rounds of groundwater quality data collected from 2009 to 2013. Remediation technologies such as soil vapor extraction, soil flushing, biostimulation, and pumping-and-treatment have been applied to eliminate the contaminant sources of trichloroethylene (TCE) and to prevent the migration of TCE plume from remediation target zones. At each remediation target zone, temporal monitoring data before and after the application of remediation techniques showed that the aqueous concentrations of TCE plume present at and around the main source areas decreased significantly as a result of remediation technologies. However, the TCE concentration of the plumes at the downstream area remained unchanged in response to the remediation action, but it showed a great fluctuation according to seasonal recharge variation during the monitoring period. Therefore, variations in the contaminant flux across three transects were analyzed. Prior to the remediation action, the concentration and mass discharges of TCE at the transects were affected by seasonal recharge variation and residual DNAPLs sources. After the remediation, the effect of remediation took place clearly at the transects. By tracing a time-series of plume evolution, a greater variation in the TCE concentrations was detected at the plumes near the source zones compared to the relatively stable plumes in the downstream. The difference in the temporal profiles of TCE concentrations between the plumes in the source zone and those in the downstream could have resulted from remedial actions taken at the source zones. This study demonstrates that long term monitoring data are useful in assessing the effectiveness of remediation practices.
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참고문헌 (18)
참고문헌 신청
Basu, N. B. / 2009 / Integration of traditional and innovative characterization techniques for flux-based assessment of dense non-aqueous phase liquid (DNAPL) sites / J. Contam. Hydrol. 105(3):161~172
Brusseau, M. L. / 2013 / Characterizing long term contaminant mass discharge and the relationship between reductions in discharge and reductions in mass for DNAPL source areas / J. Contam. Hydrol. 149:1~12
Conant J. B. / 2004 / A PCE groundwater plume discharging to a river: influence of the streambed and near-river zone on contaminant distributions / J. Contam. Hydrol. 73(1):249~279
Chapman S. W. / 2007 / Groundwater-surface water interaction and its role on TCE groundwater plume attenuation / J. Contam. Hydrol. 91:203~232
Einarson, M.D. / 2001 / Predicting impacts of groundwater contamination / Environ. Sci. Technol. 35(3):66~73
Brusseau, M. L. / 2013 / Characterizing long term contaminant mass discharge and the relationship between reductions in discharge and reductions in mass for DNAPL source areas / J. Contam. Hydrol. 149:1~12
Conant J. B. / 2004 / A PCE groundwater plume discharging to a river: influence of the streambed and near-river zone on contaminant distributions / J. Contam. Hydrol. 73(1):249~279
Chapman S. W. / 2007 / Groundwater-surface water interaction and its role on TCE groundwater plume attenuation / J. Contam. Hydrol. 91:203~232
Einarson, M.D. / 2001 / Predicting impacts of groundwater contamination / Environ. Sci. Technol. 35(3):66~73
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