• Investigation for TCE Migration and Mass Discharge Changes by Water Table Rising in Porous Media
  • Lee, Dong Geun;Moon, Hee Sun;Lee, Kang-Kun;
  • School of Earth and Environmental Sciences, Seoul National University;Groundwater Department, Geologic Environment Division, Korea Institute of Geoscience and Mineral Resources;School of Earth and Environmental Sciences, Seoul National University;
  • 투수성 매질 내에서의 지하수위 상승에 따른 TCE 거동특성 및 오염물 이동량 변화 연구
  • 이동근;문희선;이강근;
  • 서울대학교 지구환경과학부;한국지질자원연구원 지구환경본부 지하수연구실;서울대학교 지구환경과학부;
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;

References
  • 1. Brusseau, M.L., Difilippo, E.L., Marble, J.C., and Oostrom, M., 2008, Mass-removal and mass-flux-reduction behavior for idealized source zones with hydraulically poorly-accessible immiscible liquid, Chemosphere, 71, 1511-1521.
  •  
  • 2. Castaneda, A.R., Bouman, B.A.M., Tuong, T.P., and Bucao, D.S., 2003, Nitrate Contamination of groundwater: Impact from intensive rice-based cropping systems across ilocos norte, Philippine J. Crop Sci., 26(1), 30-34.
  •  
  • 3. Conrad, S.H., Glass, R.J., and Peplinski, W.J., 2002, Bench-scale visualization of DNAPL remediation processes in analog heterogeneous aquifers: surfactant floods and in situ oxidation using permanganate, J. Contamin. Hydrol., 58(1-2), 13-49.
  •  
  • 4. Difilippo, E.L., Carroll, K.C., and Brusseau, M.L., 2010, Impact of organic-liquid distribution and flow field heterogeneity on reduction in mass flux, J. Contamin. Hydrol., 115, 14-25.
  •  
  • 5. Fagerlund, F., Illangasekare, T.H., and Niemi, A., 2006, Non aqueous-phase liquid infiltration and immobilization in heterogeneous media: 1.Experimental Methods and Two-Layered Reference Case, Vadose Zone J, 6(3), 471-482.
  •  
  • 6. Fetter, C.W., 1994, Applied hydrogeology, 3rd ed., PrenticeHall, Inc, pp.598.
  •  
  • 7. Illman, W.A., Berg, S.J., Liu, X., and Massi, A., 2010, Hydraulic/partitioning tracer tomography for DNAPL source zone characterization:small-scale sand box experiments, Environ. Sci. Technol., 44(22), 8609-8614.
  •  
  • 8. Indumathi, M.N. and Power, S.E., 2000, NAPL dissolution in heterogeneous systems: an experimental investigation in a simple heterogeneous system, J. Contamin. Hydrol., 94(44), 161-184.
  •  
  • 9. Jellali, S., Benremita, H., Muntzer, P., Razakarisoa, O., and Schafer, G., 2003, A large-scale experiment on mass transfer of trichloroethylene from the unsaturated zone of a sandy aquifer to its interfaces, J. Contamin. Hydrol., 60, 31-53.
  •  
  • 10. Kechavarzi, C., Soga, K., and Illangaskare, T.H., 2005, Two-dimensional laboratory simulation of LANPL infiltration and redistribution in the vadose zone, J. Contamin. Hydrol., 76, 211-233.
  •  
  • 11. Kim, Y.C, 2004, Experimental study on tracer methods and dnapl mass transfer characteristics using various aquifer models, Seoul National University, Thesis for an Ph. D. Degree, p. 176.
  •  
  • 12. Kueper, B.H., Wealthall, G.P., Smith, J.W.N., Leharne, S.A., and Lerner, D.N., 2003, An illustrated handbook of DNAPL transport and fate in the subsurface, Environment Agency UK, http://publications.environment-agency.gov.uk/PDF/SCHO0604BHIT-E-E.pdf
  •  
  • 13. Lee, H.B., Yeo, I.W., Ji, S.H., and Lee, K.K., 2010, Wettability-dependant DNAPL migration in a rough-walled fracture, J. Contamin. Hydrol., 113(1-4), 44-55.
  •  
  • 14. Lopes, T.J and Bender, D.A., 1998, Nonpoint sources of volatile organic compounds in urban areas relative importance of land surfaces and air, Environ. Pollut., 101, 221-230.
  •  
  • 15. Luciano, A., Viotti, P., and Papini, M.P., 2010, Laboratory investigation of DNAPL migration in porous media, J. Hazard. Mater., 176, 1006-1017.
  •  
  • 16. Mahal, M.K., Asami, M., Johnson, G.R., Russo, A.E., Brusseau, and M.L., 2010, Non-ideal behavior during complete dissolution of organic immiscible liquid: 2. ideal porous media, Water Air Soil Pollut., 213(1-4), 191-197.
  •  
  • 17. Mandocdoc, M. and David, C.P., 2006, Dieldrin contamination of the Groundwater in a former US military Base, Clean, 36, 10-11.
  •  
  • 18. Masashi, K., Kazuto, E., Junichi, K., Toru, I., and Takeshi, K., 2004, Two-dimensional DNAPL migration affected by groundwater flow in unconfined aquifer, J. Hazard. Mater., 110(1-3), 1-12.
  •  
  • 19. Ministry of Environment, 2011, Regulations for drinking water quality and examinations, http://www.law.go.kr/DRF/MDRFLawService.jsp?OC=me&ID=7134
  •  
  • 20. Page, J.W.E., Soga, K., and Illangaskare, T., 2007, The significance of heterogeneity on mass flux from DNAPL source zones:An experimental investigation, J. Contamin. Hydrol., 94(3-4), 215-234.
  •  
  • 21. Soga, K., Page, J.W.E., and Illangasekare, T.H., 2004, A review of NAPL source zone remediation efficiencyand the mass flux approach, J. Hazard. Mater., 110(1-3), 13-27.
  •  
  • 22. Tathagata, G. and Rolee, K., 2011, Spatio-temporal pattern of groundwater arsenic concentration in thick unconfined aquifer of murshidabad district, West Bengal, India, Univ. J. Environ. Res. Technol., 1-3, 311-319.
  •  
  • 23. Yang, J.H., Lee, K.K., and Clement, P., 2012, Impact of seasonal variations in hydrological stress and spatial variations in geologic conditions on a TCE plume at an industrial complex in Wonju, Korea, Hydrol. Proc., 26, 317-325.
  •  

This Article

  • 2013; 18(2): 27-35

    Published on Apr 30, 2013

  • 10.7857/JSGE.2013.18.2.027
  • Received on Feb 6, 2013
  • Revised on Apr 22, 2013
  • Accepted on Apr 23, 2013