Organic acid enhanced electrodialytic extraction of lead from contaminated soil fines in suspension

Publication: Research - peer-reviewJournal article – Annual report year: 2007

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@article{fb23601a72394c64a51483e4d7384d9c,
title = "Organic acid enhanced electrodialytic extraction of lead from contaminated soil fines in suspension",
publisher = "John/Wiley & Sons Ltd.",
author = "Jensen, {Pernille Erland} and Ahring, {Birgitte Kiær} and Ottosen, {Lisbeth M.}",
year = "2007",
doi = "10.1002/jctb.1762",
volume = "82",
number = "10",
pages = "920--928",
journal = "Journal of Chemical Technology and Biotechnology",
issn = "0268-2575",

}

RIS

TY - JOUR

T1 - Organic acid enhanced electrodialytic extraction of lead from contaminated soil fines in suspension

A1 - Jensen,Pernille Erland

A1 - Ahring,Birgitte Kiær

A1 - Ottosen,Lisbeth M.

AU - Jensen,Pernille Erland

AU - Ahring,Birgitte Kiær

AU - Ottosen,Lisbeth M.

PB - John/Wiley & Sons Ltd.

PY - 2007

Y1 - 2007

N2 - The implementation of soil washing technology for the treatment of heavy metal contaminated soils is limited by the toxicity and unwieldiness of the remaining heavy metal contaminated sludge. In this work, the feasibility of combining electrodialytic remediation with heterotrophic leaching for decontamination of the sludge was investigated. The ability of 11 organic acids to extract Pb from the fine fraction of contaminated soil (grains <63 mu m) was investigated, and application of the acids as enhancing reagents during electrodialytic remediation (EDR) of Pb-contaminated soil fines in suspension was tested. Five of the acids showed the ability to extract Ph from the soil fines in excess of the effect caused solely by pH changes. Addition of the acids, however, severely impeded EDR, hence promotion of EDR by combination with heterotrophic leaching was rejected. In contrast, enhancement of EDR with nitric acid gave promising results.

AB - The implementation of soil washing technology for the treatment of heavy metal contaminated soils is limited by the toxicity and unwieldiness of the remaining heavy metal contaminated sludge. In this work, the feasibility of combining electrodialytic remediation with heterotrophic leaching for decontamination of the sludge was investigated. The ability of 11 organic acids to extract Pb from the fine fraction of contaminated soil (grains <63 mu m) was investigated, and application of the acids as enhancing reagents during electrodialytic remediation (EDR) of Pb-contaminated soil fines in suspension was tested. Five of the acids showed the ability to extract Ph from the soil fines in excess of the effect caused solely by pH changes. Addition of the acids, however, severely impeded EDR, hence promotion of EDR by combination with heterotrophic leaching was rejected. In contrast, enhancement of EDR with nitric acid gave promising results.

KW - organic acid

KW - electrokinetic

KW - heterotrophic leaching

KW - electrodialysis

KW - soil washing

KW - remediation

U2 - 10.1002/jctb.1762

DO - 10.1002/jctb.1762

JO - Journal of Chemical Technology and Biotechnology

JF - Journal of Chemical Technology and Biotechnology

SN - 0268-2575

IS - 10

VL - 82

SP - 920

EP - 928

ER -