• Evaluation of Contaminant Concentrations in Wet and Dry Seasons during Pump-and-Treat Pilot Tests
  • Jeon, Woo-Hyun;Lee, Jin-Yong;Kwon, Hyung-Pyo;Jun, Seong-Chun;Cheon, Jeong-Yong;
  • Department of Geology, Kangwon National University;Department of Geology, Kangwon National University;GeoGreen21 Co., Ltd.;GeoGreen21 Co., Ltd.;GeoGreen21 Co., Ltd.;
Abstract
This study was performed to examine use of the pump-and-treat method for remediation of TCE, CF and CT in groundwater contaminated by DNAPL. The Woosan industrial complex is located in Wonju, about 120 km east of Seoul, Korea. Two pumping wells (KDPW7 and KDPW8) and five monitoring wells (KDMW7, KDMW8, KDMW9, KDMW10, and SKW2) were installed for the test. An asphalt laboratory is a main source of the extensive subsurface contamination at this site. To evaluate change in the concentrations of TCE, CF, and CT in groundwater in the study area, three rounds of pump-and-treat pilot tests were performed (6 July to 6 August, 22 August to 6 September, and 19 September to 2 December in 2011). The groundwater levels and the concentrations of TCE, CF, and CT exhibited negative correlations in the wet season but positive correlations in the dry season, which suggests that the TCE concentrations were mainly controlled by dilution through rainfall during the wet season and by residual TCE, CF, and CT in the unsaturated zone during the dry season. These possibilities should be considered in the full-scale remediation plan.

Keywords: DNAPL;Pump-and-treat;Pilot test;TCE;Water level;

References
  • 1. Baek, W. and Lee, J.Y., 2010, Source apportionment of trichloroethylene in groundwater of the industrial complex in Wonju, Korea: a 15-year dispute and perspective, Water Environ. J., 25(3), 336-344.
  •  
  • 2. Bauer, S., Bayer-Raich, M., Holder, T., Kolesar, C., Muller, D., and Ptak, T., 2004, Quantification of groundwater contamination in an urban area using integral pumping tests, J. Contam. Hydrol., 75, 183-213.
  •  
  • 3. Berglund, S., 1995, The effect of Langmuir sorption on pumpand-treat remediation of a stratified aquifer, J. Contam. Hydrol., 18(3), 199-220.
  •  
  • 4. Bockelmann, A., Ptak, T., and Teutsch, G., 2001, An analytical quantification of mass fluxes and natural attenuation rate constants at a former gasworks site, J. Contam. Hydrol., 53, 429-453.
  •  
  • 5. Bouwer, H. and Rice, R.C., 1976, A slug test for determining hydraulic conductivity of unconfined aquifers with completely or partially penetrating wells, Water Resour. Res., 12(3), 423-428.
  •  
  • 6. Chae, G.T., Yun, S.T., KIm, D.S., KIm, K.H., and Joo, Y., 2010, Time-series analysis of three years of groundwater level data (Seoul, South Korea) to characterize urban groundwater recharge, Q. J. Eng. Geol. Hydrogeol., 43, 117-127.
  •  
  • 7. Chambers, J.E., Loke, M,H., Ogilvy, R.D., and Meldrum, P.I., 2004, Noninvasive monitoring of DNAPL migration through a saturated porous medium using electrical impedance tomography, J. Contam. Hydrol., 68, 1-22.
  •  
  • 8. Chang, L.C., Chu, H.J., and Hsiao, C.T., 2007, Optimal planning of a dynamic pump-treat-inject groundwater remediation system, J. Hydrol., 342, 295-304.
  •  
  • 9. Cheon, J.Y., Jeon, W.H., Park, Y., Lee, J.Y., and Lee, K.K., 2013, Pilot tests of pump and treat system for a TCE contaminated groundwater in Wonju, Korea, Water Environ. J. (submitted).
  •  
  • 10. Cooper, H.H., Bredehoeft, J.D., and Papadopulos, I.S., 1967, Response of a finite diameter well to an instantaneous charge of water, Water Resour. Res., 3(1), 263-269.
  •  
  • 11. Gangwon Province, 2005, Detailed investigation and basic remediation design for contaminated soil and groundwater in the Woosan industrial complex, Wonju city, Gangwon Province, Korea.
  •  
  • 12. Hamm, S.Y., Kim, K.S., Lee, J.H., Cheong, J.Y., Sung, I.H., and Jang, S., 2006, Characteristics of groundwater quality in Sasang industrial area, Busan metropolitan city, Econ. Environ. Geol., 39(6), 753-770 (in Korean with English abstract).
  •  
  • 13. Heo, J.W., Lee, D.H., Koh, D.C., and Chang, H.W., 2007, The effect of ionic strength and hardness of trichloroethylene-contaminated synthetic groundwater on remediation using granular activated carbon, Geosci. J., 11(3), 229-239.
  •  
  • 14. Jackson, R.E., 1998, The migration, dissolution, and fate of chlorinated solvents in the urbanized alluvial valleys of the southwestern USA, Hydrogeol. J., 6(1), 144-155.
  •  
  • 15. Jeon, W.H., Lee, J.Y., Jun, S.C., and Cheon, J.Y., 2013, Comparison of TCE concentrations in the wet and dry seasons during the pump and treat pilot tests, 2013 Asia Oceania Geosciences Society, Brisbane, HS15-A003.
  •  
  • 16. Jo, Y.J., Lee, J.Y., Yi, M.J., Kim, H.S., and Lee, K.K., 2010, Soil contamination with TCE in an industrial complex: contamination levels and implication for groundwater contamination, Geosci. J., 14(3), 313-320.
  •  
  • 17. Kamon, M., Endo, K., and Katsumi, T., 2003, Measuring the k-S-p relations on DNAPLs migration, Eng. Geol., 70, 351-363.
  •  
  • 18. Kim, Y., Kim, J., Ha, C., Kim, N., Hong, K., Kwon, S.Y., Ahn, Y.H., Ha, J., and Park, H., 2005, Field tests for assessing the bioremediation feasibility of a trichloroethylene-contaminated aquifer, J. Soil & Groundwater Env., 10(3), 38-45 (in Korean with English abstract).
  •  
  • 19. Lee, J.Y. and Lee, K.K., 2003, A review on natural attenuation of chlorinated solvents in subsurface, J. Geol. Soc. Korea, 39(4), 545-555 (in Korean with English abstract).
  •  
  • 20. Lenczewski, M., Jardine, P., McKay, L., and Layton, A., 2003, Natural attenuation of trichloroethylene in fractured shale bedrock, J. Contam. Hydrol., 64, 151-168.
  •  
  • 21. Mackay, D.M. and Cherry, J.A., 1989, Groundwater contamination: limitations of pump-and-treat remediation, Environ. Sci. Technol., 23(6), 630-636.
  •  
  • 22. Michael, O.R., Stanley, F., and John, A.C., 2001, A controlled field experiment on groundwater contamination by a multicomponent DNAPL: creation of the emplaced-source and overview of dissolved plume development, J. Contam. Hydrol., 49, 111-149.
  •  
  • 23. Oolman, T., Godard, S.T., Pope, G.A., Jin, M., and Kirchner, K., 1995, DNAPL flow behavior in a contaminated aquifer: evaluation of field data, Groundwater Monit. Rem., 15(4), 125-137.
  •  
  • 24. Oostrom, M., Hofstee, C., Walker, R.C., and Dane, J.H., 1999, Movement and remediation of trichloroethylene in a saturated heterogeneous porous medium 1. spill behavior and initial dissolution, J. Contam. Hydrol., 37, 159-178.
  •  
  • 25. Park, B.K., Chang, H.W., and Woo, Y.K., 1989, Geological report of the Wonju sheet (scale 1:50,000), Korea Institute of Energy and Resources.
  •  
  • 26. Park, D.K., Ko, N.Y., and Lee, K.K., 2007, Optimal groundwater remediation design considering effects of natural attenuation, processes: pumping strategy with enhanced-naturalattenuation, Geosci. J., 11(4), 377-385.
  •  
  • 27. Park Y.C., Jeong, J.M., Eom, S.I., and Jeong, U.P., 2011, Optimal management design of a pump and treat system at the industrial complex in Wonju, Korea, Geosci. J., 15(2), 207-223.
  •  
  • 28. Poulsen, M.M. and Kueper, B.H., 1992, A field experiment to study the behavior of tetrachloroethylene in unsaturated porous media, Environ. Sci. Technol., 26, 889-895.
  •  
  • 29. Rivett, M.O., Lerner, D.N., and Lloyd, J.W., 1990, Temporal variations of chlorinated solvents in abstraction wells, Ground Water Monit. Rem., 10(4), 127-133.
  •  
  • 30. Rivett, M.O., Feenstra, S., and Cherry, J.A., 2001, A controlled field experiment on groundwater contamination by a multicomponent DNAPL: Creation of the emplaced-source and overview of dissolved plume development, J. Contam. Hydrol., 49, 111-149.
  •  
  • 31. US EPA (Environmental Protection Agency), 1996, Pump-andtreat ground-water remediation, EPA/625/R-95/005.
  •  
  • 32. Yang, J.H., Lee, K.K., and Clement, T.P., 2012, Impact of seasonal variations in hydrological stresses and spatial variations in geologic conditions on a TCE plume at an industrial complex in Wonju, Korea, Hydrol. Process., 26(3), 317-325.
  •  
  • 33. Young, C.M., Jackson, R.E., Jin, M., Londergan, J.T., Mariner, P.E., Pope, G.A., Anderson, F.J., and Houk, T., 1999, Characterization of a TCE DNAPL zone in alluvium by partitioning tracers, Ground Water Monit. Rem., 19(1), 84-94.
  •  
  • 34. Yu, S.Y., Chae, G.T., Jeon, K.H., Jeong, J.S., and Park, J.G., 2006, Trichloroethylene contamination in fractured bedrock aquifer in Wonju, South Korea, Bull. Environ. Contam. Toxicol., 76(2), 341-348.
  •  
  • 35. Zeru, A. and Schafer, G., 2005, Analysis of groundwater contamination using concentration-time series recorded during an integral pumping test: Bias introduced by strong concentration gradients within the plume, J. Contam. Hydrol., 81, 106-124.
  •  

This Article

  • 2013; 18(6): 18-31

    Published on Nov 30, 2013

  • 10.7857/JSGE.2013.18.6.018
  • Received on Sep 11, 2013
  • Revised on Nov 12, 2013
  • Accepted on Nov 12, 2013