Reduction of Cr(VI) by peat and coal humic substances

Denis M. Zhilin; Philippe Schmitt-Kopplin; Irina V. Perminova

doi:10.1007/s10311-004-0085-4

Reduction of Cr(VI) by peat and coal humic substances

Denis M. Zhilin, Philippe Schmitt-Kopplin, Irina V. Perminova

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

71 Scopus citations

Abstract

The reduction of Cr(VI) by humic substances from leonardite and peat was investigated by capillary zone electrophoresis at various pHs. Both humic materials reduced Cr(VI) at pH 5.4, but not at basic pH. The capacity of leonardite humic substances to reduce Cr(VI) was lower than that of peat humic substances. Fe(III) accelerated the reduction of Cr(VI) by peat humic substances, but not by leonardite humic substances. Cr(VI) reduction mechanisms are proposed. The coal humic substances seem more suitable for remediation of Cr(VI)- contaminated sites.

Original language	English
Pages (from-to)	141-145
Number of pages	5
Journal	Environmental Chemistry Letters
Volume	2
Issue number	3
DOIs	https://doi.org/10.1007/s10311-004-0085-4
State	Published - 2004
Externally published	Yes

Keywords

Capillary zone electrophoresis
Chromium
Humic substances
Redox
Remediation

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10.1007/s10311-004-0085-4

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abstract = "The reduction of Cr(VI) by humic substances from leonardite and peat was investigated by capillary zone electrophoresis at various pHs. Both humic materials reduced Cr(VI) at pH 5.4, but not at basic pH. The capacity of leonardite humic substances to reduce Cr(VI) was lower than that of peat humic substances. Fe(III) accelerated the reduction of Cr(VI) by peat humic substances, but not by leonardite humic substances. Cr(VI) reduction mechanisms are proposed. The coal humic substances seem more suitable for remediation of Cr(VI)- contaminated sites.",

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AU - Zhilin, Denis M.

AU - Schmitt-Kopplin, Philippe

AU - Perminova, Irina V.

PY - 2004

Y1 - 2004

N2 - The reduction of Cr(VI) by humic substances from leonardite and peat was investigated by capillary zone electrophoresis at various pHs. Both humic materials reduced Cr(VI) at pH 5.4, but not at basic pH. The capacity of leonardite humic substances to reduce Cr(VI) was lower than that of peat humic substances. Fe(III) accelerated the reduction of Cr(VI) by peat humic substances, but not by leonardite humic substances. Cr(VI) reduction mechanisms are proposed. The coal humic substances seem more suitable for remediation of Cr(VI)- contaminated sites.

AB - The reduction of Cr(VI) by humic substances from leonardite and peat was investigated by capillary zone electrophoresis at various pHs. Both humic materials reduced Cr(VI) at pH 5.4, but not at basic pH. The capacity of leonardite humic substances to reduce Cr(VI) was lower than that of peat humic substances. Fe(III) accelerated the reduction of Cr(VI) by peat humic substances, but not by leonardite humic substances. Cr(VI) reduction mechanisms are proposed. The coal humic substances seem more suitable for remediation of Cr(VI)- contaminated sites.

KW - Capillary zone electrophoresis

KW - Chromium

KW - Humic substances

KW - Redox

KW - Remediation

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SN - 1610-3653

VL - 2

SP - 141

EP - 145

JO - Environmental Chemistry Letters

JF - Environmental Chemistry Letters

IS - 3

ER -

Reduction of Cr(VI) by peat and coal humic substances

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Keywords

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