Application of electrical imaging to leachate plume evolution studies under in-situ and model conditions

Depountis, Nikolaos; Harris, Charles; Davies, M. C. R.; Koukis, G.; Sabatakakis, N.

doi:10.1007/s00254-004-1219-5

Cited by 19 publications

(7 citation statements)

References 4 publications

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“…Many studies have shown that electrical resistivity tomography (ERT) could be suitable to study complex resistivity distributions (2-D and 3-D) at large scales (10 to hundreds of metres wide to 30 m deep) (Bernstone et al, 2000;Buselli and Lu, 2001;Binley et al, 2002;Day-Lewis et al, 2003;Depountis et al, 2005;Descloitres et al, 2008b). As such, ERT is becoming a common tool for studying leachate injection experiments in landfills (Moreau et al, 2003;Morris et al, 2003;Rosqvist et al, 2003;Guerin et al, 2004;Depountis et al, 2005;Olofsson et al, 2006;Mondelli et al, 2007;Grellier et al, 2008).…”

Section: Introductionmentioning

confidence: 97%

Contribution of 3-D time-lapse ERT to the study of leachate recirculation in a landfill

2011

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Section: Introductionmentioning

confidence: 97%

Contribution of 3-D time-lapse ERT to the study of leachate recirculation in a landfill

2011

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“…Repeated resistivity measurements have been used in several applications of groundwater studies (Barker and Moore, 1998), with other purposes than safety control of embankments, such as for instance mapping distribution of groundwater contaminants (e.g. Osiensky, 1995;Kayabali et al, 1998;Aristodemou and Thomas-Betts, 2000;Chambers et al, 2004;Depountis et al, 2005). Other areas include imaging changing moisture content distribution in engineered earthworks (Jackson et al, 2002), snowmelt infiltration (French and Binley, 2004) or monitoring of soil remediation works (LaBrecque et al, 1996) just to name a few.…”

Section: Introductionmentioning

confidence: 99%

Resistivity monitoring for leakage and internal erosion detection at Hällby embankment dam

Sjödahl

Dahlin

Johansson

et al. 2008

Journal of Applied Geophysics

121

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Internal erosion is one of the major reasons for embankment dam failures. Despite this, the knowledge of the temporal development of internal erosion in full scale structures is limited. Detection of internal erosion is complicated using conventional methods, and new or improved methods are appreciated. Hällby was the first Swedish embankment to get a permanently installed monitoring system intended for resistivity measurements. Daily measurements started to take place already in late 1996, which make these long term monitoring data unique. This paper includes examples of long term time series from Hällby along with some evaluation and interpretation techniques used when analysing such monitoring data. Time-lapse inversion was used to focus the variation over time and suppress artefacts due to the resistivity structure. Seasonal resistivity variations inside the dam are obvious. Increasing long term resistivity has been noticed in a particular zone in the left embankment. This zone also exhibits larger seasonal variations relative to other parts of the dam, and the variations are increasing. The observations may relate to an ongoing internal erosion process in the dam. The long term change may be indicative of a change in material properties, and the large and increasing variations may reflect higher and increasing seepage levels. In the years 2004 to 2006 the dam was upgraded and the resistivity system reinstalled. The results indicate that resistivity monitoring may have a chance of detecting development of internal erosion at an early stage.

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“…Application of electrical resistivity tomography (ERT) is very popular for landfill sites characterization since electrical resistivity of waste in landfill disposal varies considerably with time during waste decomposition and leachate generation, and since it allows continuous site study (e.g., Bernstone et al 2000;Aristodemou and Thomas-Betts 2000;Depountis et al 2005;Zume et al 2006;Mondelli et al 2007;Soupios et al 2006Soupios et al , 2007Frid et al 2008, Georgaki et al 2008. For example Soupios et al 2006Soupios et al , 2007 ERT as a part of integrated geophysical method for landfill characterization, while Georgaki et al 2008 used ERT together with methane and carbon dioxide emission measurements in order to improve the estimation of landfill gas emission.…”

Section: Introductionmentioning

confidence: 99%

Geophysical-geochemical investigation of fire-prone landfills

et al. 2009

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This paper deals with the integration of electrical resistivity tomography and geochemical methods for studying four different fire-prone landfills. Landfill gas composition (CH 4 , H 2 S, O 2 , CO, CO 2 ) and subsurface temperature were measured with the constant net 50 9 50 m from the depth 10-60 cm. 28 electrical resistivity tomography lines were surveyed, while Wenner and Sclumberger electrode arrays were employed for all measurements. At the studied sites the landfill gas and temperature measurements mapped gas and temperature anomalies over underground fire sources. 2D electrical resistivity tomography lines, performed over these anomalies, showed these fire sources as high-resistivity zones. The joint employment of the electrical imaging and geochemical survey seems to be a useful tool in carrying out diagnostic investigations at fire-prone landfills.

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Application of electrical imaging to leachate plume evolution studies under in-situ and model conditions

Cited by 19 publications

References 4 publications

Contribution of 3-D time-lapse ERT to the study of leachate recirculation in a landfill

Contribution of 3-D time-lapse ERT to the study of leachate recirculation in a landfill

Resistivity monitoring for leakage and internal erosion detection at Hällby embankment dam

Geophysical-geochemical investigation of fire-prone landfills

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