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Assessment of aided phytostabilization of copper-contaminated soil by X-ray absorption spectroscopy and chemical extractions
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.ORCID iD: 0000-0002-1442-1573
UMR BIOGECO INRA 1202, Ecology of Communities, Bordeaux 1 University.
UMR BIOGECO INRA 1202, Ecology of Communities, Bordeaux 1 University.
Energy, Environment & National Security, Environmental Sciences Department, Brookhaven National Laboratory, Upton, NY.
2011 (English)In: Environmental Pollution, ISSN 0269-7491, E-ISSN 1873-6424, Vol. 159, no 6, p. 1536-1542Article in journal (Refereed) Published
Abstract [en]

Field plots were established at a timber treatment site to evaluate remediation of Cu contaminated topsoils with aided phytostabilization. Soil containing 2600 mg kg-1 Cu was amended with a combination of 5 wt% compost and 2 wt% iron grit, and vegetated. Sequential extraction was combined with extended X-ray absorption fine structure (EXAFS) spectroscopy to correlate changes in Cu distribution across five fractions with changes in the predominant Cu compounds two years after treatment in parallel treated and untreated field plots. Exchangeable Cu dominated untreated soil, most likely as Cu(II) species non-specifically bound to natural organic matter. The EXAFS spectroscopic results are consistent with the sequential extraction results, which show a major shift in Cu distribution as a result of soil treatment to the fraction bound to poorly crystalline Fe oxyhydroxides forming binuclear inner-sphere complexes.

Place, publisher, year, edition, pages
2011. Vol. 159, no 6, p. 1536-1542
National Category
Other Environmental Engineering
Research subject
Waste Science and Technology
Identifiers
URN: urn:nbn:se:ltu:diva-11134DOI: 10.1016/j.envpol.2011.03.005ISI: 000290839900010PubMedID: 21454002Scopus ID: 2-s2.0-79955082049Local ID: a0a2510e-2da7-4ab7-b0b4-1055d1a61fd5OAI: oai:DiVA.org:ltu-11134DiVA, id: diva2:984083
Note
Validerad; 2011; 20110408 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Kumpiene, Jurate

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