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Bioavailability and mobility of Pb after soil treatment with different remediation methods

Author

Listed:
  • N. Finžgar

    (Biotechnical Faculty, University of Ljubljana, Slovenia)

  • B. Kos

    (Biotechnical Faculty, University of Ljubljana, Slovenia)

  • D. Leštan

    (Biotechnical Faculty, University of Ljubljana, Slovenia)

Abstract

The risk of Pb contaminated soil after treatment with different remediation techniques was assessed. Soil vitrification (microwaves) reduced Pb orally available from the stomach and intestinal phase measured by a physiologically based extraction test. Solidification of Pb (Slovakite) did not reduce the concentration of orally available Pb and increased the Pb uptake by Thlaspi goesingens for 2-times compared to plants grown on the original soil. Soil extraction with 40 mmol/kg EDTA removed 57.6% of Pb. However, the concentration of orally available Pb and Pb uptake by T. goesingens increased. The concentration of mobile soil Pb also increased for 14-times measured by a toxicity characteristic leaching procedure. Soil leaching with 10 mmol/kg biodegradable chelator [S,S] ethylenediamine disuccinate and using a horizontal permeable reactive barrier for Pb accumulation from the washing solution removed 17.8% of Pb, but increased Pb uptake by T. goesingens by 3-times and slightly increased the concentration of Pb in the intestinal phase. Leaching did not significantly effects Pb availability from the stomach phase or Pb mobility.

Suggested Citation

  • N. Finžgar & B. Kos & D. Leštan, 2006. "Bioavailability and mobility of Pb after soil treatment with different remediation methods," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 52(1), pages 25-34.
    • Handle: RePEc:caa:jnlpse:v:52:y:2006:i:1:id:3342-pse
    DOI: 10.17221/3342-PSE
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    References listed on IDEAS

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    1. M. Vysloužilová & P. Tlustoš & J. Száková & D. Pavlíková, 2003. "As, Cd, Pb and Zn uptake by Salix spp. clones grown in soils enriched by high loads of these elements," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 49(5), pages 191-196.
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    Cited by:

    1. M. Turan & A. Esringü, 2007. "Phytoremediation based on canola (Brassica napus L.) and Indian mustard (Brassica juncea L.) planted on spiked soil by aliquot amount of Cd, Cu, Pb, and Zn," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 53(1), pages 7-15.

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