Uranium in Framboidal Pyrite from a Naturally Bioreduced Alluvial Sediment

• Published in: Environmental science & technology Vol. 43; no. 22; pp. 8528 - 8534
• Main Authors: Qafoku, Nikolla P, Kukkadapu, Ravi K, McKinley, James P, Arey, Bruce W, Kelly, Shelly D, Wang, Chongmin, Resch, Charles T, Long, Philip E
• Format: Journal Article
• Language: English
• Published: Washington, DC American Chemical Society 15.11.2009
• Subjects: Applied sciences; Aquifers; Biodegradation, Environmental; Characterization of Natural and Affected Environments; Exact sciences and technology; Extraction processes; Geologic Sediments - chemistry; Iron - chemistry; Microscopy, Electron, Scanning; Pollution; Rivers; Sediments; Spectrum analysis; Sulfides - chemistry; Uranium; Uranium - chemistry; Colorado River; USA, Colorado R; Scanning electron microscopy; Radioactive pollution; XANES spectrometry; Pollutant behavior; Pollution control; Plume; Radioisotope; Sulfates; Sediments; Material weathering; Long term; EXAFS spectrometry; Aquifers; Persistence; Iron III; Uranium; Decontamination; Morphology; Weathering; Oxidation; Pollution abatement; Total organic carbon; Porosity; Ground water

Samples of a naturally bioreduced, U-contaminated alluvial sediment were characterized with various microscopic and spectroscopic techniques and wet chemical extraction methods. The objective was to investigate U association and interaction with minerals of the sediment. Bioreduced sediment comprise...