Use of Chelating Agents for Remediation of Heavy Metal Contaminated Soil

Peters, Robert W.; Shem, L.M.; Vandergrift, G. F.; Reed, Donald T.; Tasker, Ian

doi:10.1021/bk-1992-0509.ch006

Cited by 54 publications

(27 citation statements)

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“…The important issues concerning the selection of chelants and the development of washing 303 solutions are summarized as follows (Peters and Shem, 1992;Hong and Jiang, 2005): 304…”

Section: Introduction 28 29mentioning

confidence: 99%

The use of chelating agents in the remediation of metal-contaminated soils: A review

Leštan

Luo

2008

Environmental Pollution

474

180

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This paper reviews current remediation technologies that use chelating agents for the 16 mobilization and removal of potentially toxic metals from contaminated soils. These 17 processes can be done in situ as enhanced phytoextraction, chelant enhanced electrokinetic 18 extraction and soil flushing, or ex situ as the extraction of soil slurry and soil heap/column 19 leaching. Current proposals on how to treat and recycle waste washing solutions after soil is 20 washed are discussed. The major controlling factors in phytoextraction and possible strategies 21 for reducing the leaching of metals associated with the application of chelants are also 22 reviewed. Finally, the possible impact of abiotic and biotic soil factors on the toxicity of 23 metals left after the washing of soil and enhanced phytoextraction are briefly addressed. 24 25

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“…The important issues concerning the selection of chelants and the development of washing 303 solutions are summarized as follows (Peters and Shem, 1992;Hong and Jiang, 2005): 304…”

Section: Introduction 28 29mentioning

confidence: 99%

The use of chelating agents in the remediation of metal-contaminated soils: A review

Leštan

Luo

2008

Environmental Pollution

474

180

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“…However, even in small-scale laboratory studies, where just a few grams of soil were treated, sometimes only a minor part of the heavy metals was removed, especially from soils with a high clay and silt content (Peters and Shem 1992). Nevertheless, a survey of the literature revealed no studies on phyto-or bioavailability of Pb after treatment of contaminated soil with different soil washing techniques.…”

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confidence: 99%

Bioavailability and mobility of Pb after soil treatment with different remediation methods

Finzgar¹,

Kos²,

Leštan³

2006

PLANT SOIL ENVIRON

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The risk of Pb contaminated soil after treatment with different remediation techniques was assessed. Soil vitrification (microwaves) reduced Pb orally available from the stomach and intestinal phase measured by a physiologically based extraction test. Solidification of Pb (Slovakite) did not reduce the concentration of orally available Pb and increased the Pb uptake by Thlaspi goesingens for 2-times compared to plants grown on the original soil. Soil extraction with 40 mmol/kg EDTA removed 57.6% of Pb. However, the concentration of orally available Pb and Pb uptake by T. goesingens increased. The concentration of mobile soil Pb also increased for 14-times measured by a toxicity characteristic leaching procedure. Soil leaching with 10 mmol/kg biodegradable chelator [S,S] ethylenediamine disuccinate and using a horizontal permeable reactive barrier for Pb accumulation from the washing solution removed 17.8% of Pb, but increased Pb uptake by T. goesingens by 3-times and slightly increased the concentration of Pb in the intestinal phase. Leaching did not significantly effects Pb availability from the stomach phase or Pb mobility.

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“…A concentração total de zinco nos solos é altamente dependente da composição química do material de origem (ALLOWAY, 1995 (ADRIANO, 1986;PETERS;SHEN, 1992).…”

Section: Zincounclassified

Comportamento de B, Zn, Cu, Mn e Pb em solo contaminado sob cultivo de plantas e adição de fontes de matéria orgânica como amenizantes do efeito tóxico

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Use of Chelating Agents for Remediation of Heavy Metal Contaminated Soil

Cited by 54 publications

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The use of chelating agents in the remediation of metal-contaminated soils: A review

The use of chelating agents in the remediation of metal-contaminated soils: A review

Bioavailability and mobility of Pb after soil treatment with different remediation methods

Comportamento de B, Zn, Cu, Mn e Pb em solo contaminado sob cultivo de plantas e adição de fontes de matéria orgânica como amenizantes do efeito tóxico

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