Application of electrical resistivity tomography methods for delineation of groundwater contamination and potential zones

Rao, G. Tamma; Rao, V. V. S. Gurunadha; Padalu, G.; Dhakate, Ratnakar; Sarma, V. S.

doi:10.1007/s12517-013-0835-3

Cited by 30 publications

(8 citation statements)

References 18 publications

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“…It firstly determines five measuring points, which are located on the north, west, east, and center of the landfill. The measuring points provide information on areas with the greatest and smallest pollutant anomaly by interpreting the difference of electrical resistivity levels acquired from geo-electrical sounding [G. Tamma Rao et al,2013].…”

Section: The Methodsmentioning

confidence: 99%

Underground Leachate Distribution Based on Electrical Resistivity in Piyungan Landfill, Bantul

Harjito

Suntoro

Gunawan

et al. 2018

IJG

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This research was conducted in Piyungan Landfill, this research aims to identify areas that experience groundwater pollution and spread direction of leachate to the surrounding area caused by leachate movement, and to develop a leachate management model. This research uses Electrical Resistivity Tomography (ERT) survey in order to identify the distribution of electrical resistivity in polluted areas. The results show that groundwater contamination has occurred in the research area, as indicated by very low electrical resistivity in aquifer zone, i.e. 3-9 Ωm. Such low electrical resistivity is caused by increased ions in groundwater as the results of leachate migrating downward into groundwater. The increased ions will trigger an increase in electrical conductivity (EC), i.e. up to 1,284 μmhos/cm, and a decline in electrical resistivity. The leachate spreads westward and northward at a depth of 6-17 m (aquifer) with a thickness of pollution between 4-11 m. The recommended landfill management model, emphasizing on leachate movement, include base lining (liner), leachate collection channel, geomembrane cap, and leachate treatment. Abstrak Penelitian ini dilakukan di Tempat Pembuangan Akhir (TPA) sampah Piyungan,dengan tujuan mengidentifikasi daerah yang mengalami pencemaran airtanah dan arah persebaran yang diakibatkan oleh pergerakan lindi, serta membuat model pengelolaan air lindi. Metode yang digunakan dalam penelitian ini yaitu survei electrical resistivity tomography (ERT). Hasil penelitian menunjukkan bahwa telah terjadi pencemaran terhadap airtanah ditandai dengan adanya nilai resistivitas yang sangat rendah di zona akuifer antara 3-9 Ωm. Rendahnya nilai resistivitas ini disebabkan oleh adanya peningkatan ion-ion dalam airtanah yang disebabkan masuknya air lindi ke dalam airtanah. Meningkatnya ion-ion ini akan memicu terjadinya peningkatan daya hantar listrik (DHL) hingga mencapai

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Section: The Methodsmentioning

confidence: 99%

Underground Leachate Distribution Based on Electrical Resistivity in Piyungan Landfill, Bantul

Harjito

Suntoro

Gunawan

et al. 2018

IJG

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“…To change this situation, Chinese government has recently released a series of national plans, guidelines, and laws to combat groundwater pollution: for example, the National Plan of Groundwater Pollution Prevention for the years 2011-2020 (Ministry of Due to the increasing importance of water-quality assessment in water resources management, a number of scholars have performed this important work in various regions by a variety of methods (e.g., Al-Rawabdeh et al 2014;Golekar et al 2013;Rajesh et al 2015;Vetrimurugan et al 2013;Vetrimurugan and Elango 2014). Recently, Rao et al (2013) applied electrical resistivity tomography (ERT) methods in the delineation of groundwater contamination and potential zones in India. Such geoelectrical techniques were also adopted in the research conducted by Metwaly et al (2013) to characterize the lateral distribution of contamination plumes.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Shallow Groundwater Contamination and Associated Human Health Risk in an Alluvial Plain Impacted by Agricultural and Industrial Activities, Mid-west China

2015

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Intensive human activities have caused contamination to groundwater quality which consequently affects human health. In this study, an evaluation of groundwater quality was carried out for better understanding of the status of groundwater contamination and potential risks to local residents in an alluvial plain (China) where agricultural and industrial activities are intensive. Comprehensive water quality index was used for drinking water-quality assessment and sodium adsorption ratio, Na%, and residual sodium carbonate were applied for irrigation water-quality assessment. The human health risks caused by intake of the contaminated groundwater through the oral and dermal pathways were also assessed. The assessment results reveal that most of the water samples are generally suitable for irrigation purpose, but over 60 % of them are not fit for drinking, and the total hardness, NO 3 -, NO 2 -, TDS, SO 4 2-, and F -are the main contaminants affecting its suitability for drinking purpose. Residents in the study area are at high health risk, and NO 3 -originating mainly from industrial and agricultural pollution is the greatest contributory cause of the health risks. Furthermore, children in this area are at higher health risk than adults, and oral ingestion is the dominate exposure pathway of health risk. Therefore, urgent and efficient measures must be taken to combat groundwater pollution and reduce health risk in the area.

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“…The amount of alteration depends on the concentration and nature of contaminants in addition to the period of contamination (Aizebeokhai, 2009). Therefore, many environmental problems can be resolved by geophysical methods (Rao et al, 2014). Electrical resistivity tomography is one of the most effective geophysical methods used to image the subsurface using differences in measured electrical resistivity at the surface (Dahlin, 2001).…”

Section: Introductionmentioning

confidence: 99%

Implementing Electrical Resistivity Tomography to Delineate Soil Contamination Zone, Southern Baqubah City, Iraq

D.Al-Awsi

Abdulrazzaq²

2022

KJS publishes peer-review articles in Mathematics, Computer Sci

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An electrical resistivity tomography survey was carried out in Diyala University campus, southern Baqubaa city, Iraq. The main aim of this study is to evaluate the efficiency of electrical resistivity tomography to detect the buried sewage system as well as to assess its environmental impact on the surrounding soil. Six parallel resistivity profiles were carried out at a perpendicular direction to the axis of the sewage system. Two-and three-dimensional geoelectrical models were constructed to determine the distribution of resistivity and its relation with both buried structures and contaminated zones. The results showed an intermediate relative resistivity zone (6-10 Ω.m) and several rounded very low resistivity zones (< 1 Ω.m), identifying the underground sewage system and contaminated soil, respectively. Based on variations in resistivity values, six holes (h1, h2, h3, h4, h5, and h6) were drilled. A total of six soil samples at 1.5m depth (1 sample per hole) were collected for heavy metals concentrations analysis. The results of the chemical analysis showed a higher concentration of heavy metals near the septic system than that the area away from it. Much lower resistivity zones (<1 Ω.m) and the higher concentration of heavy metals observed near septic system indicate the impact of contamination by migration from the septic tank into the nearby soil. The results of this study confirm the efficiency of electrical resistivity tomography for detecting a buried object and mapping contaminated zone for engineering and environmental applications.

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Application of electrical resistivity tomography methods for delineation of groundwater contamination and potential zones

Cited by 30 publications

References 18 publications

Underground Leachate Distribution Based on Electrical Resistivity in Piyungan Landfill, Bantul

Underground Leachate Distribution Based on Electrical Resistivity in Piyungan Landfill, Bantul

Evaluation of Shallow Groundwater Contamination and Associated Human Health Risk in an Alluvial Plain Impacted by Agricultural and Industrial Activities, Mid-west China

Implementing Electrical Resistivity Tomography to Delineate Soil Contamination Zone, Southern Baqubah City, Iraq

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