Zinc species distribution in EDTA-extract residues of zinc-contaminated soil

Shuo Hsiu Chang; Yu Ling Wei; Hong-Paul Wang

doi:10.1016/j.elspec.2006.12.008

Zinc species distribution in EDTA-extract residues of zinc-contaminated soil

Shuo Hsiu Chang, Yu Ling Wei, Hong-Paul Wang

Department of Environmental Engineering

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

Soil sample from a site heavily contaminated with >10 wt.% zinc is sampled and extracted with aqueous solutions of ethylene diamine tetra-acetic acid (EDTA) that is a reagent frequently used to extract heavy metals in soil remediation. Three liquid/soil ratios (5/1, 20/1, and 100/1) were used in the extracting experiment. The molecular environment of the residual Zn in the EDTA-extract residues of zinc-contaminated soil is investigated with XANES technique. The results indicate that EDTA does not show considerable preference of chelating for any particular Zn species during the extraction. Zn species distribution in the sampled soil is found to resemble that in all EDTA-extract residues; Zn(OH)₂ is determined as the major zinc species (60-70%), seconded by organic zinc (21-26%) and zinc oxide (9-14%).

Original language	English
Pages (from-to)	220-223
Number of pages	4
Journal	Journal of Electron Spectroscopy and Related Phenomena
Volume	156-158
DOIs	https://doi.org/10.1016/j.elspec.2006.12.008
Publication status	Published - 2007 May 1

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Radiation
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Spectroscopy
Physical and Theoretical Chemistry

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10.1016/j.elspec.2006.12.008

Cite this

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title = "Zinc species distribution in EDTA-extract residues of zinc-contaminated soil",

abstract = "Soil sample from a site heavily contaminated with >10 wt.% zinc is sampled and extracted with aqueous solutions of ethylene diamine tetra-acetic acid (EDTA) that is a reagent frequently used to extract heavy metals in soil remediation. Three liquid/soil ratios (5/1, 20/1, and 100/1) were used in the extracting experiment. The molecular environment of the residual Zn in the EDTA-extract residues of zinc-contaminated soil is investigated with XANES technique. The results indicate that EDTA does not show considerable preference of chelating for any particular Zn species during the extraction. Zn species distribution in the sampled soil is found to resemble that in all EDTA-extract residues; Zn(OH)2 is determined as the major zinc species (60-70%), seconded by organic zinc (21-26%) and zinc oxide (9-14%).",

author = "Chang, {Shuo Hsiu} and Wei, {Yu Ling} and Hong-Paul Wang",

year = "2007",

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doi = "10.1016/j.elspec.2006.12.008",

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journal = "Journal of Electron Spectroscopy and Related Phenomena",

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T1 - Zinc species distribution in EDTA-extract residues of zinc-contaminated soil

AU - Chang, Shuo Hsiu

AU - Wei, Yu Ling

AU - Wang, Hong-Paul

PY - 2007/5/1

Y1 - 2007/5/1

N2 - Soil sample from a site heavily contaminated with >10 wt.% zinc is sampled and extracted with aqueous solutions of ethylene diamine tetra-acetic acid (EDTA) that is a reagent frequently used to extract heavy metals in soil remediation. Three liquid/soil ratios (5/1, 20/1, and 100/1) were used in the extracting experiment. The molecular environment of the residual Zn in the EDTA-extract residues of zinc-contaminated soil is investigated with XANES technique. The results indicate that EDTA does not show considerable preference of chelating for any particular Zn species during the extraction. Zn species distribution in the sampled soil is found to resemble that in all EDTA-extract residues; Zn(OH)2 is determined as the major zinc species (60-70%), seconded by organic zinc (21-26%) and zinc oxide (9-14%).

AB - Soil sample from a site heavily contaminated with >10 wt.% zinc is sampled and extracted with aqueous solutions of ethylene diamine tetra-acetic acid (EDTA) that is a reagent frequently used to extract heavy metals in soil remediation. Three liquid/soil ratios (5/1, 20/1, and 100/1) were used in the extracting experiment. The molecular environment of the residual Zn in the EDTA-extract residues of zinc-contaminated soil is investigated with XANES technique. The results indicate that EDTA does not show considerable preference of chelating for any particular Zn species during the extraction. Zn species distribution in the sampled soil is found to resemble that in all EDTA-extract residues; Zn(OH)2 is determined as the major zinc species (60-70%), seconded by organic zinc (21-26%) and zinc oxide (9-14%).

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SN - 0368-2048

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JO - Journal of Electron Spectroscopy and Related Phenomena

JF - Journal of Electron Spectroscopy and Related Phenomena

ER -

Zinc species distribution in EDTA-extract residues of zinc-contaminated soil

Abstract

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