Dense Non-Aqueous Phase Liquids (DNAPLs) induce variation in electromagnetic characteristics of the ground e.g. electric permittivity and resistivity. The most used indirect methods in the mapping of these physical characteristics are electrical resistivity and ground penetrating radar. To better understand the effect of DNAPL release on electrical permittivity and resistivity in a water saturated medium, we carried out a controlled laboratory experiment where the host material was simulated by glass beads and the DNAPL by HFE-7100 (hydrofluoroether). The experiment measured the electric resistivity and permittivity of each fluid, the multi-phase fluid system, and the host material, along with time-lapse electrical resistivity and GPR measurements in a controlled cell. We found that the different phases of DNAPL within a saturated medium (free, dissolved and gaseous phase) affect the physical characteristics differently. The reflection pull-up behind contaminated sediments, which is no

Electrical permittivity and resistivity time lapses of multiphase DNAPLs in a lab test / Orlando, Luciana; Renzi, Beatrice. - In: WATER RESOURCES RESEARCH. - ISSN 0043-1397. - STAMPA. - 51:(2015), pp. 377-389. [10.1002/2014WR015291]

Electrical permittivity and resistivity time lapses of multiphase DNAPLs in a lab test

ORLANDO, Luciana;RENZI, BEATRICE
2015

Abstract

Dense Non-Aqueous Phase Liquids (DNAPLs) induce variation in electromagnetic characteristics of the ground e.g. electric permittivity and resistivity. The most used indirect methods in the mapping of these physical characteristics are electrical resistivity and ground penetrating radar. To better understand the effect of DNAPL release on electrical permittivity and resistivity in a water saturated medium, we carried out a controlled laboratory experiment where the host material was simulated by glass beads and the DNAPL by HFE-7100 (hydrofluoroether). The experiment measured the electric resistivity and permittivity of each fluid, the multi-phase fluid system, and the host material, along with time-lapse electrical resistivity and GPR measurements in a controlled cell. We found that the different phases of DNAPL within a saturated medium (free, dissolved and gaseous phase) affect the physical characteristics differently. The reflection pull-up behind contaminated sediments, which is no
2015
DNAPL; free and dissolved phases; GPR; electrical resistivity
01 Pubblicazione su rivista::01a Articolo in rivista
Electrical permittivity and resistivity time lapses of multiphase DNAPLs in a lab test / Orlando, Luciana; Renzi, Beatrice. - In: WATER RESOURCES RESEARCH. - ISSN 0043-1397. - STAMPA. - 51:(2015), pp. 377-389. [10.1002/2014WR015291]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/778347
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