Integrated geophysical characterisation of Sunyani municipal solid waste disposal site using magnetic gradiometry, magnetic susceptibility survey and electrical resistivity tomography

Appiah, Isaac; Wemegah, David Dotse; Asare, Van-Dycke Sarpong; Danuor, Sylvester K.; Forson, Eric Dominic

doi:10.1016/j.jappgeo.2018.02.007

Cited by 17 publications

(8 citation statements)

References 28 publications

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“…A combination of these two methods can help to reduce uncertainties in interpretation arising when only one method is used. The magnetic technique has been used in several environmental applications to map magnetic materials within waste sites (Appiah et al, 2018;Dumont et al, 2017;Wemegah et al, 2017). Moreover, the ERT method is considered very suitable for solving environmental problems due to the conductive nature of contaminants.…”

Section: Methodsmentioning

confidence: 99%

“…The magnetic method has proven its effectivity for solving environmental problems and is considered as one of the most rapid, efficient, and powerful methods for detecting the lateral extents of landfills which-in most cases-contain erratically distributed highly-magnetized materials (Appiah et al, 2018). Moreover, the magnetic gradiometry as a nearsurface geophysical method is very effective in determining such relatively small magnetic bodies within the upper few meters of the ground.…”

Section: Magnetic Surveymentioning

confidence: 99%

“…Several geophysical techniques improved their power in detection the geometry of waste deposits in a faster, cheaper, and non-destructive way. Among these techniques are magnetic methods (Marchetti et al, 2002;Prezzi et al, 2005), electrical resistivity and electromagnetic prospecting (Baawain et al, 2018;Bernstone & Dahlin, 1997;Candansayar & Tezkan, 2006;De Carlo et al, 2013;Frangos, 1997;Helene et al, 2020;Karlik & Kaya, 2001;Martinho & Almeida, 2006;Morita et al, 2020;Saraev et al, 2020;Tezkan et al, 2000), ground penetration radar (GPR) (Orlando & Marchesi, 2001;Porsani et al, 2004;Wu & Huang, 2006), seismic methods (Carpenter et al 1991;De Laco et al, 2003;Missiaen & Feller, 2008) in addition to the use of a combination of more than one geophysical method (Appiah et al, 2018;Genelle et al, 2014;Tezkan et al, 1996;Yannah et al, 2019). Moreover, investigating leachates and locating possible paths of pollution plumes in landfill areas using near-surface geophysical techniques have been studied by several scientists (e.g.…”

Section: Introductionmentioning

confidence: 99%

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Integrated Interpretation of Magnetic and ERT Data to Characterize a Landfill in the North-West of Cologne, Germany

Ibraheem

Tezkan

Bergers

2021

Pure Appl. Geophys.

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Electrical resistivity tomography (ERT) and ground magnetic surveys were applied to characterize an old uncontrolled landfill in a former exploited sand and gravel quarry in an area to the north-west of the city of Cologne, Germany. The total magnetic field and its vertical gradient were recorded using a proton precession magnetometer to cover an area of about 43,250 m2. The magnetic data were transferred to the frequency domain and then reduced to the north magnetic pole. The amplitude of the analytical signal was calculated to define the magnetic materials within and outside the landfill. Eight ERT profiles were constructed based on the results of the magnetic survey using different electrode arrays (Wenner, dipole–dipole, and Schlumberger). In order to increase both data coverage and sensitivity and to decrease uncertainty, a non-conventional mixed array was used. The subsurface resistivity distributions were imaged using the robust (L1-norm) inversion method. The resultant inverted subsurface true resistivity data were presented in the form of 2D cross sections and 3D fence diagram. These non-invasive geophysical tools helped us to portray the covering soil, the spatial limits of the landfill, and the depth of the waste body. We also successfully detected low resistivity zones at deeper depths than expected, which probably be associated with migration pathways of the leachate plumes. The findings of the present study provide valuable information for decision makers with regards to environmental monitoring and assessment.

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Section: Methodsmentioning

confidence: 99%

Section: Magnetic Surveymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Integrated Interpretation of Magnetic and ERT Data to Characterize a Landfill in the North-West of Cologne, Germany

Ibraheem

Tezkan

Bergers

2021

Pure Appl. Geophys.

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“…Many researchers used the integration of different geophysical methods in dealing with mapping of waste disposal areas and characterization of bedrocks to delineate fractures and faults through which transportation of contaminants takes place in the subsurface and nature of contaminants. Subsurface contamination can occur in different ways like intrusion of saltwater, seepage from buried waste, and groundwater pollution of soil through the landfill or direct contamination [5][6][7][8]. Ground magnetic method is the most widely used technique to identify the major subsurface structural elements such as faults, fractures which facilitate contaminant spreading [9].…”

Section: Introductionmentioning

confidence: 99%

Shallow geophysical and hydrological investigations to identify groundwater contamination in Wadi Bani Malik dam area Jeddah, Saudi Arabia

et al. 2021

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The integration of geophysical techniques with hydrological investigation is frequently used for solving different geological and environmental problems including groundwater quality and exploration and seismic vulnerability assessment. In this research, the shallow geophysical techniques comprising of electrical resistivity profiling, vertical electrical sounding, and ground magnetic were used to identify the contaminated areas lying in the upstream and downstream of Almisk Lake in Jeddah. The chemical analyses of water samples collected from the wells located in the downstream and upstream areas were used to support these results as an increase in the total dissolved solids (TDS) shows a decrease in the resistivity value. The results of geophysical techniques and hydrochemical analyses show that the TDS values are significantly higher in the upstream area of dam than those of the downstream, which suggests that the contaminating source is lying in the upstream of the reservoir. Moreover, the dam was not completely successful to block the contamination because of improper base. The hydrochemical analysis and geophysical results clearly indicate that the groundwater is not suitable for drinking and irrigation purposes.

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“…In particular, waste generated at high temperatures (metallurgical waste, slag from metal smelting, ashes and slags from fossil fuel combustion) have very high magnetic susceptibility, low electrical resistivity, and large fluctuations in the measured magnetic and geoelectric signal, which is a result of their high heterogeneity (Birch, Scholger, Walach, Stremke, & Cech, 2015; Di Maio et al, 2018; Humphris & Carey, 2016; Kowalczyk, Cabalski, & Radzikowski, 2017; Magiera et al, 2019; Vernon, McDonnell, & Schmidt, 1998; Walach, Scholger, & Cech, 2011). In this situation, integrated magnetic and geoelectric techniques may be applied to determine more precisely the location of buried wastes or historical anthropogenic layers (Appiah, Wemegah, Asare, Danuor, & Forson, 2018; Cabała, Żogała, & Dubiel, 2008; Dumont, Robert, Marck, & Nguyen, 2017; Luberti, Vergari, Pica, & Del Monte, 2019; Moscatelli et al, 2014). A combination of different geophysical methods supported by geochemical analyses usually provides very accurate identification of anthropogenic layers (Cao, Appel, Rösler, & Magiera, 2015; Łyskowski et al, 2018; Łyskowski, Pasierb, Wardas‐Lasoń, Antonik, & Mazurkiewicz, 2017).…”

Section: Introductionmentioning

confidence: 99%

Application of different geophysical techniques to study Technosol developed on metallurgical wastes

et al. 2020

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Research conducted in a municipal park in a small town located in the Province of Silesia (southern Poland) showed that the park vegetation was growing on a Technosol, formed on highly magnetic anthropogenic material. The metallurgical waste came from the local steel mill and foundry and creates a subsoil in a significant part of the municipal park. This waste is covered with an organic layer of approximately 10 cm. Utilizing specific magnetic and geoelectrical properties of the wastes, we proposed a unique combination of integrated geophysical measuring techniques including soil magnetometry, electrical resistivity tomography (ERT) with varying unit electrode spacing, and electromagnetic profiling (EM) to assess continuity, thickness, and the depth of the anthropogenic layer of metallurgical wastes. The maximal thickness of the metallurgical wastes was identified in the western part of the studied area, and the same material was found in the eastern part of the park forming individual lenses or nests within 8 m deep zone in the area of a buried ravine where the historical railway line was located. The shallow ERT profiles (with unit electrode spacing 0.5 m) also revealed a thin layer of material with high resistivity (>500 Ωm). Thermomagnetic analyses have shown that the sources of the extremely high magnetic susceptibility of the wastes were magnetite and metallic iron (αFe). The detected high concentration of Fe and Mn was not accompanied by potentially toxic metals and, at relatively high pH values (6.5–9.0), does not constitute a significant ecological threat.

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Integrated geophysical characterisation of Sunyani municipal solid waste disposal site using magnetic gradiometry, magnetic susceptibility survey and electrical resistivity tomography

Cited by 17 publications

References 28 publications

Integrated Interpretation of Magnetic and ERT Data to Characterize a Landfill in the North-West of Cologne, Germany

Integrated Interpretation of Magnetic and ERT Data to Characterize a Landfill in the North-West of Cologne, Germany

Shallow geophysical and hydrological investigations to identify groundwater contamination in Wadi Bani Malik dam area Jeddah, Saudi Arabia

Application of different geophysical techniques to study Technosol developed on metallurgical wastes

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