1887

Abstract

Summary

In Alingsås, a dry-cleaning facility was operated for many years, and huge amounts of the solvent PCE was spilled into the ground. This contributed to an increasing concentration of PCE over the years until the use of PCE was stopped, resulting in the formation of a DNAPL plume beneath the building. Treatment of contaminated soils in Sweden often includes excavation and landfilling, however in Alingsås this is not applicable. In situ remediation methods (thermal, biological, chemical) are the only alternative however, there is a need for tools to monitor the effectiveness of those methods. One method of particular interest in this context is the Direct Current time-domain Induced Polarization (DCIP). For that purpose, a fully autonomous and automatic monitoring system was installed in Alingsås, to perform frequent automated measurements and to provide information about the changes in the subsurface. The geophysical data should be ideally acquired, analyzed and verified with automated routines as part of a larger monitoring system. It is of great importance, especially in the early stage, to verify events that appear to show interesting changes with sampling data to evaluate the level of reliability of the system.

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/content/papers/10.3997/2214-4609.201802498
2018-09-09
2024-03-29
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References

  1. CaterinaD., Flores OrozcoA., NguyenF.
    (2017). Long-term ERT monitoring of biogeochemical changes of an aged hydrocarbon contamination. Journal of Contaminant Hydrology201, 19–29
    [Google Scholar]
  2. Karaoulis, M.C., Revil, A., Tsourlos, P., WerkemaD.D., Minsley, B.J.
    (2013). IP4DI: A software for time-lapse 2D/3D DC-resistivity and induced polarization tomography. Computers & Geosciences, 54, 164–170.
    [Google Scholar]
  3. Kim, J.H., Supper, R., Ottowitz, D., Jochum, B., Yi, M.J.
    (2016). Processing of ERT Monitoring Data and Evaluation of Their Reliabilities. Proceedings of Near Surface Geoscience 2016.
    [Google Scholar]
  4. KurasO.
    (2016). Geoelectrical monitoring of simulated subsurface leakage to support high-hazard nuclear decommissioning at the Sellafield Site, UK. Science of the Total Environment, 350–359
    [Google Scholar]
  5. Loke, M.H., Dahlin, T., Rucker, D.F.
    (2014). Smoothness-constrained time-lapse inversion of data from 3D resistivity surveys. Near Surface Geophysics, 12, 5–24
    [Google Scholar]
  6. NaudetV.
    , (2014). 3D electrical resistivity tomography to locate DNAPL contamination around a housing estate. Near Surface Geophysics, 12, 351–360
    [Google Scholar]
  7. Olsson, P.I., Fiandaca, G., Larsen, J.J., Dahlin, T., Auken, E.
    (2015). Doubling the spectrum of time-domain induced polarization by harmonic de-noising, drift correction, spike removal, tapered gating and data uncertainty estimation. Geophysical Journal International, 207(2), 774–784
    [Google Scholar]
  8. Rossi, M., Dahlin, T., Olsson, P.I., Gunther, T.
    (2018). Data acquisition, processing and filtering for reliable 3D resistivity and time-domain induced polarization tomography in an urban area: field example of Vinsta, Stockholm, Near Surface Geophysics (Special Issue)
    [Google Scholar]
  9. Sjödahl, P., Dahlin, T., Johansson, S., Loke, M.H.
    (2008). Resistivity monitoring for leakage and internal erosion detection at Hällby embankment dam. Journal of Applied Geophysics65, 155–164
    [Google Scholar]
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