Incorporation of Uranium into Hematite during Crystallization from Ferrihydrite

Ferrihydrite was exposed to U(VI)-containing cement leachate (pH 10.5) and aged to induce crystallization of hematite. A combination of chemical extractions, TEM, and XAS techniques provided the first evidence that adsorbed U(VI) (≈3000 ppm) was incorporated into hematite during ferrihydrite aggre...

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Veröffentlicht in:	Environmental science & technology 2014-04, Vol.48 (7), p.3724-3731
Hauptverfasser:	Marshall, Timothy A, Morris, Katherine, Law, Gareth T. W, Livens, Francis R, Mosselmans, J. Frederick W, Bots, Pieter, Shaw, Samuel
Format:	Artikel
Sprache:	eng
Schlagworte:	Adsorption Applied sciences cement Chemical bonds Crystallization Earth sciences Earth, ocean, space Engineering and environment geology. Geothermics Environmental Pollution - analysis Exact sciences and technology Extraction processes Extractive crystallization Ferric Compounds - chemistry ferrihydrite Fourier Analysis hematite iron Leaching Minerals Pollution Pollution, environment geology Radioactive wastes Spectrometry, X-Ray Emission Temperature transmission electron microscopy Uranium Uranium - chemistry Wastes X-Ray Absorption Spectroscopy X-Ray Diffraction
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