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https://doi.org/10.37358/Rev.Chim.1949

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Revista de Chimie (Rev. Chim.), Year 2006, Volume 57, Issue 12,





Biosolubilization of Uranyl Ions in Uranium Ores
by Hidrophyte Plants


Abstract:

Universitatea “Al. I. Cuza” Iaşi, Facultatea de Chimie, B-dul Carol I, Nr. 11, 700506, Iaşi, Bucureşti This paper investigated the bioleaching of uranyl ions from uranium ores, in aqueous medium by hydrophyte plants: Lemna minor, Azolla caroliniana and Elodea canadensis under different experimental conditions. The oxidation of U(IV) to U(VI) specie was made based on the atomic oxygen generated by photosynthesis by the aquatic plants from solution above uranium ores. Under identical experimental conditions, the capacity of bioleaching of uranium ores decreases according to the following series: Lemna minor ] Elodea canadensis ] Azolla caroliniana. The results of IR spectra suggest the possible use of Lemna minor and Elodea canadensis as a biological decontaminant of uranium containing wastewaters. Keywords: uranium ores, uranyl ions, hidrophyte plants


Issue: 2006, Volume 57, Issue 12
Pages:
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