Removal of Pb from a calcareous soil during EDTA-enhanced electrokinetic extraction

Amrate, S.; Akretche, D.E.; Innocent, Christophe; Seta, P.

doi:10.1016/j.scitotenv.2005.01.018

Cited by 75 publications

(26 citation statements)

References 28 publications

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“…The samples were sieved and the fraction that contained particles of 2 mm or smaller was selected. These soil samples were previously characterised by Amrate et al (2005). The organic matter was calculated on the basis of potassium dichromate oxidation and the determined value was 1.26%.…”

Section: Sandy Soilmentioning

confidence: 99%

Electrokinetic remediation of lead and phenanthrene polluted soils

Alcántara¹,

Gómez²,

Pazos³

et al. 2012

Geoderma

115

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Section: Sandy Soilmentioning

confidence: 99%

Electrokinetic remediation of lead and phenanthrene polluted soils

Alcántara¹,

Gómez²,

Pazos³

et al. 2012

Geoderma

115

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“…Several researchers have investigated potential applicability of electrokinetic remediation of soils contaminated with heavy metals and organic compounds (Acar et al 1995;Page and Page 2002;Sawada et al 2004;Amrate et al 2005;Ribeiro et al 2005;Deng and Jennings 2006;Niqui-Arroyo and Ortega-Calvo 2007;Isosaari et al 2007). A comprehensive electrokinetic research program has been in place at the University of Illinois at Chicago since 1993.…”

Section: Enhanced Electrokinetic Remediationmentioning

confidence: 99%

Technical Challenges to In-situ Remediation of Polluted Sites

Reddy

2008

Geotech Geol Eng

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Throughout the world, subsurface contamination has become a widespread and pervasive problem. Toxic chemicals such as heavy metals and organic compounds are commonly used in a myriad of industries. However, largely through inadvertent or accidental release, these chemicals are presently polluting sites across the United States. In order to protect public health and the environment, further pollution must be prevented and sites with existing contamination urgently need remediation. Unfortunately, remediating subsurface contamination has proved to be a daunting task. Heavy metals and organic compounds often coexist and their distribution within the subsurface is highly dependent on particle and macro-scale heterogeneities. Vast resources have been invested to develop efficient remediation technologies, yet very few of these technologies have been successful. In-situ remediation is often preferred due to minimal site disturbance, safety, simplicity, and costeffectiveness. The effectiveness of in-situ remediation technologies depends largely on the contaminant chemistry and subsurface heterogeneities (including particle-scale heterogeneities such as fine-grained soils, soils with reactive minerals, and/or soils rich in organic matter as well as macro-scale heterogeneities such as irregular soil layers and/or lenses). Under such heterogeneous conditions, integrated electrokinetic remediation technology has great potential. As a safe and economical remedial option for so many contaminated sites, the application of integrated electrokinetic remediation offers enormous public health, environmental, and financial benefits.

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“…Various enhancement techniques, i.e. careful management of the pH within the electrode [13,14], chelating agent [15,16], and enhancing reagent [17,18] in the cathode reservoir, have been proposed to improve effectiveness in EK system. It was concluded that the key feature for improving EK performance of removing contaminants was highly dependent on the interaction between contaminants and processing fluid.…”

Section: Introductionmentioning

confidence: 99%

Effect of processing fluid and initial concentration on electrokinetic removal of environmental hormone—nonylphenol (NP) from soil matrix

2010

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This study was aimed to investigate the electrokinetic removal of environmental hormone--nonylphenol (NP)--from soil matrix under potential gradient of 1 V cm -1 for 5-day treatment. The EK experiments were conducted with four processing fluids of de-ionized water, citric acid, NaOH, and methanol in a Pyrex glass cylindrical cell. Results showed that the elcetrokinetic removal efficiency of the above-mentioned processing fluid was 29, 36-38, 43-53, and 53-69%, respectively. It was found that the removal of NP in EK system was highly related to the solubility of NP in processing fluid. Approximate 88.8-94.2% of NP removal was collected in the cathode reservoir after EK treatment, which was 7.9-16.2 times greater than that collected in the anode reservoir. It was concluded that NP was mainly removed from anode to cathode by electroosmosis flow. The electrokinetic phenomenon of current density, electroosmistic permeability, and power consumption were also investigated.

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Removal of Pb from a calcareous soil during EDTA-enhanced electrokinetic extraction

Cited by 75 publications

References 28 publications

Electrokinetic remediation of lead and phenanthrene polluted soils

Electrokinetic remediation of lead and phenanthrene polluted soils

Technical Challenges to In-situ Remediation of Polluted Sites

Effect of processing fluid and initial concentration on electrokinetic removal of environmental hormone—nonylphenol (NP) from soil matrix

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