Permittivity and electrical resistivity measurements and estimations during the recovery of DNAPL in saturated porous media: 2D tank experiments

Colombano, Stéfan; Davarzani, Hossein; Hullebusch, Eric D. van; Huguenot, David; Guyonnet, Dominique; Deparis, Jacques; Ignatiadis, Ioannis

doi:10.1016/j.jappgeo.2021.104359

Cited by 7 publications

(2 citation statements)

References 42 publications

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“…We suggested a linear relationship because the di↵erence between the two endpoints (porous media saturated with oil or ethanol) relative permittivity is small (" e ' 6 and " o ' 14) and that it gives a good approximation of the commonly used power law model (Complex Refractive Index Model, CRIM) (Birchak et al, 1974). This last has been proved to be accurate for a DNAPL/mineral/water mixture (Ajo-Franklin et al, 2004;Colombano et al, 2021a). ageJ, an open-source image processing program (Schneider et al, 2012).…”

Section: Monitoring Systemmentioning

confidence: 99%

Impact of gravity and inertia on stable displacements of DNAPL in highly permeable porous media

Cochennec

Davarzani

Davit

et al. 2022

Advances in Water Resources

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Section: Monitoring Systemmentioning

confidence: 99%

Impact of gravity and inertia on stable displacements of DNAPL in highly permeable porous media

Cochennec

Davarzani

Davit

et al. 2022

Advances in Water Resources

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“…Weight and volume measurements were performed to calculate the porosity of the media which was 38.9% ± 0.6%. Permeability of the porous media was measured experimentally according to Darcy's law by setting a hydrostatic height above the porous sample and measuring the water flow rate at its output following the same protocol as (Colombano et al 2020(Colombano et al , 2021Philippe et al 2020Philippe et al , 2021. The measured absolute permeability was 3.5 × 10 −10 m 2 .…”

Section: Pt Tests In Columnmentioning

confidence: 99%

Fluorescent Dyes as Partitioning Tracers for the Estimation of NAPL‐Mass Saturation in Porous Media

Visitacion‐Carrillo,

Colombano,

Fatin‐Rouge

et al. 2023

Groundwater Monitoring Rem

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Accurate estimation of the nonaqueous phase liquids (NAPLs) saturation such as chlorinated organic compounds (COCs) in aquifers is crucial for the proper remediation of contaminated groundwater. A combination of conservative and partitioning tracers (PTs) are commonly used to assess NAPL saturations in the subsurface at COC release sites, using the partitioning interwell tracer test (PITT). In this study, five fluorescent dyes were assessed as PTs to estimate the saturation of octanol and 3 COC NAPLs in soil columns. PT experiments required an initial assessment of both partitioning (NAPL/water and octanol/water) and linear free‐energy relations. The predictability of the partition coefficients was correlated to the pH of the two‐phase fluids for both systems (NAPL/water and octanol/water). The COC NAPLs were acidic and some PTs with acid‐base properties, like fluorescein, are easily influenced by pH. The PITT experiments were performed in a column packed with glass beads, using rhodamine WT as PT because of its particular specificity for the complex mixture of NAPLs and sodium chloride as the inert tracer. Breakthrough curves of rhodamine WT were examined to estimate the saturation of a NAPL made of a complex mixture of COCs. The DNAPL residual saturation estimation accuracy was sensitive to both pH variations and the water velocity. The latter was represented by an exponential function which resulted from non‐equilibrium measurements, heterogeneous sweeping of the contaminated sample, and redistribution of the NAPL droplets in the medium.

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DNAPL flow and complex electrical resistivity evolution in saturated porous media: A coupled numerical simulation

Koohbor

Deparis

Leroy

et al. 2022

Journal of Contaminant Hydrology

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Permittivity and electrical resistivity measurements and estimations during the recovery of DNAPL in saturated porous media: 2D tank experiments

Cited by 7 publications

References 42 publications

Impact of gravity and inertia on stable displacements of DNAPL in highly permeable porous media

Impact of gravity and inertia on stable displacements of DNAPL in highly permeable porous media

Fluorescent Dyes as Partitioning Tracers for the Estimation of NAPL‐Mass Saturation in Porous Media

DNAPL flow and complex electrical resistivity evolution in saturated porous media: A coupled numerical simulation

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