Monitoring of in situ remediation with the direct current time-domain induced polarization method

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

Abstract

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.

Original languageEnglish
Title of host publication24th European Meeting of Environmental and Engineering Geophysics
PublisherEuropean Association of Geoscientists and Engineers
ISBN (Electronic)9789462822634
DOIs
Publication statusPublished - 2018
Event24th European Meeting of Environmental and Engineering Geophysics - Porto, Portugal
Duration: 2018 Sep 92018 Sep 13

Conference

Conference24th European Meeting of Environmental and Engineering Geophysics
Country/TerritoryPortugal
CityPorto
Period2018/09/092018/09/13

Subject classification (UKÄ)

  • Geotechnical Engineering

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