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Bioakkumulation von UO 2 2+ - und Th 4+ -Ionen aus Abwässern

1997; Taylor & Francis; Volume: 33; Issue: 3 Linguagem: Inglês

10.1080/10256019708234043

1477-2639

Alexandru Cecal, A. Gulea, Rudic Valeriu, I. Palamaru, Doina Humelnicu, Karin Popa,

Chemical Synthesis and Characterization

Abstract Using different algea types the bioaccumulation of UO2 2+ and Th4+ ions from experimental residual wastes of nuclear facilities was investivated. The retaining degree of these ions on microbiological sorbents decreases as: Scenedesmus quadricauda > Porphyridium cruentum > Spirulina platensis > Calothrix sp.2 > Calothrix sp.1 for UO2 2+ and Porphyridium cruentum > Spirulina platensis > Scenedesmus quadricauda for Th 4+. For the same algae it was observed that the retaining degree is much higher for UO2 2+ than for Th4+, probably due to the different linking degrees of hydrolysed species of these ions on the macromolecular compounds of the living cells through the chemical functional groups.