Monitoring Chemical Diffusion in a Porous Media using Electrical Resistivity Tomography

Damasceno, V. M.; Fratta, Dante

doi:10.1061/40861(193)22

Cited by 4 publications

(4 citation statements)

References 8 publications

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“…Godio and Naldi 2003;Slater and Mansoor 2006;Damasceno and Fratta 2006;Depountis et al 2001;Kemna et al 2000;Slater et al 2000;French et al 2002;Binley et al 2005), electromagnetics and self potential (Naudet et al 2003;Arora et al 2007). A qualitative image of the soil mineralization, due to degradation of hydrocarbons, could for instance be inferred by integration of resistivity and induced polarisation data (e.g.…”

Section: Monitoring Contaminants In the Subsurfacementioning

confidence: 99%

SoilCAM: soil contamination: advanced integrated characterisation and time-lapse monitoring

French

Zee

Meju

2009

Rev Environ Sci Biotechnol

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The SoilCAM project is aimed at improving current methods for monitoring contaminant distribution and biodegradation in the subsurface. Currently proven methods, based on invasive sampling of soil, soil water and gaseous phase, are unable to provide sufficiently accurate data with high enough resolution, resulting in inability to assess bioremediation progress and quantification of the processes involved in such bioremediation at field sites. Consequently, present assessment strategies to decide on optimal remediation approach, including design of monitoring systems, and evaluation of degradation progress, are severely flawed by uncertainty. Geophysical time-lapse measurements in combination with novel ground truthing methods give the possibility to determine contamination levels and their spatial spreading in a heterogeneous environment.Geophysical methods of data acquisition alone are presently unable to provide absolute levels of biodegradable contamination concentrations. We aim to test and develop fundamental constitutive relations between soil physical and degradation activity parameters and geophysically measurable parameters. Despite current improvements, there is a strong need to test these theories in practical field situations. The SoilCAM project is dedicated to improving both site contamination assessment and the monitoring of bioremediation processes, and changes in soil environmental conditions. We suggest combining improved conventional soil monitoring techniques with state-of-the-art geophysical approaches and modelling. Two European sites with mobile contaminants in a highly permeable subsurface are central in the project. Focus on practical field situations and strong communication with stake-holders and SMEs will ensure high relevance for society.

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Section: Monitoring Contaminants In the Subsurfacementioning

confidence: 99%

SoilCAM: soil contamination: advanced integrated characterisation and time-lapse monitoring

French

Zee

Meju

2009

Rev Environ Sci Biotechnol

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“…However, very few studies have been conducted to assess the electrical resistivity of treated contaminated soils. e electrical resistivity measurement has increasing applications in geotechnical and geoenvironmental practices owing to its economical, time-effective, and nondestructive advantages [9][10][11][12]. Soil resistivity is a material inherent property, and the main factors influencing resistivity are water content, porosity, degree of saturation, and ion concentration of pore solution [13,14].…”

Section: Introductionmentioning

confidence: 99%

“…Soil resistivity is a material inherent property, and the main factors influencing resistivity are water content, porosity, degree of saturation, and ion concentration of pore solution [13,14]. Previous studies have shown that the electrical resistivity method can be used to investigate engineering properties of soils and rocks [15][16][17][18][19][20][21][22], to monitor contaminants and delineate contaminant transport in soils [10,[23][24][25], and to detect defects and heterogeneity in the landfill cover material [26].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Electrical Resistivity of Cement-Stabilized Lead-Contaminated Soils

Cao

Xiang

Peng

et al. 2018

Advances in Civil Engineering

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Geotechnical applications based on soil resistivity measurement are becoming more popular in recent years. In order to explore the potential application of the electrical resistivity method in stabilization/solidification of contaminated soils, two kinds of lead-contaminated soils stabilized with cement were prepared, and the electrical resistivity and unconfined compressive strength of specimens after curing for various periods were measured. The test results show that a high lead content leads to a low value of electrical resistivity of cement-stabilized soils, and increasing cement content and curing time result in a significant increase in electrical resistivity. The reduction in porosity and degree of saturation, as a result of the cement hydration process, leads to an increase in electrical resistivity. The ratio of porosity-lead content/cement content-curing time, combining together the effect of lead content, cement content, curing time, and porosity on electrical resistivity of stabilized soils, can be used as a fundamental parameter to assess electrical resistivity of cement-stabilized lead-contaminated soils. Archie’s law can be extended to apply to cement-stabilized lead-contaminated soils by using this ratio, replacing the porosity. The new resistivity formula obtained in this paper is just empirical. There is a power function correlation between unconfined compressive strength and electrical resistivity of lead-contaminated soils stabilized with cement. Electrical resistivity measurement can be used as an economical and time-effective method to assess the quality of cement-stabilized lead-contaminated soils in practice.

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“…The application of such a technique to laboratory experiments is quite new, although some preliminary studies can be found in the literature (Binley et al 1996;Olsen et al 1999;and Sambuelli et al 2002). Laboratory investigations of 2D imaging of soils specimens with electric tomography have been very successful in locating various types of heterogeneities (clay content, compaction characteristics, and grain size distribution; Borsic et al 2005) and in monitoring the diffusion of saline solutions in sand samples (Comina et al 2005;Damasceno and Fratta 2006).…”

Section: Introductionmentioning

confidence: 99%

EIT Oedometer: An Advanced Cell to Monitor Spatial and Time Variability in Soil with Electrical and Seismic Measurements

Comina

Foti

Musso

et al. 2008

Geotechnical Testing Journal

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The paper presents an innovative oedometer cell (EIT oedometer), accomplishing for monitoring the spatial and temporal evolution of different physical quantities inside soil samples through seismic and electric non-destructive measurements. The technical solutions implemented to perform correct electrical measurements are reported together with the results of benchmark tests demonstrating the potentialities and the limits of the 3D electrical resistivity tomography in detecting both pre-existing and induced sample heterogeneities. It is shown that resistivity imaging can offer a powerful tool for the investigation of soil heterogeneities not detected by external measurements. The relationship between electrical resistivity and soil properties makes this application potentially useful for monitoring the evolution of transient processes as for instance those related to the diffusion of chemical species in clay soils and associated coupled chemo-mechanical processes, whereas the information gathered by classical oedometer measurements and by seismic waves propagation could be used to explore the associated macroscopic phenomena.

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Monitoring Chemical Diffusion in a Porous Media using Electrical Resistivity Tomography

Cited by 4 publications

References 8 publications

SoilCAM: soil contamination: advanced integrated characterisation and time-lapse monitoring

SoilCAM: soil contamination: advanced integrated characterisation and time-lapse monitoring

Experimental Study on Electrical Resistivity of Cement-Stabilized Lead-Contaminated Soils

EIT Oedometer: An Advanced Cell to Monitor Spatial and Time Variability in Soil with Electrical and Seismic Measurements

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