Behavior of heavy metals in model three-component soil systems

Behavior of heavy metals in model three-component soil systems Model three-component soil systems including goethite (a mineral component) and a suspension of microorganisms (a biological component) have been used to study the interaction of Pb and Zn with the mineral surface. The results show that live microorganisms markedly reduced the adsorption of these metals, especially Pb, on the goethite shell surface. In the case of Pb, this is due to a decrease in the content of its nonexchangeable form; in the case of Zn, to a decrease in the content of its exchangeably bound compounds. An organic matter preparation obtained by autoclave treatment of microorganisms has a markedly weaker effect on metal adsorption, compared to the suspension of live microbial cells. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Ecology Springer Journals

Behavior of heavy metals in model three-component soil systems

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Publisher
SP MAIK Nauka/Interperiodica
Copyright
Copyright © 2010 by Pleiades Publishing, Ltd.
Subject
Life Sciences; Environment, general; Ecology
ISSN
1067-4136
eISSN
1608-3334
D.O.I.
10.1134/S1067413610030136
Publisher site
See Article on Publisher Site

Abstract

Model three-component soil systems including goethite (a mineral component) and a suspension of microorganisms (a biological component) have been used to study the interaction of Pb and Zn with the mineral surface. The results show that live microorganisms markedly reduced the adsorption of these metals, especially Pb, on the goethite shell surface. In the case of Pb, this is due to a decrease in the content of its nonexchangeable form; in the case of Zn, to a decrease in the content of its exchangeably bound compounds. An organic matter preparation obtained by autoclave treatment of microorganisms has a markedly weaker effect on metal adsorption, compared to the suspension of live microbial cells.

Journal

Russian Journal of EcologySpringer Journals

Published: May 20, 2010

References

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