Uranyl incorporation into calcite and aragonite: XFAS and luminescence studies

Article Abstract:

Researchers conducted x-ray absorption, luminescence and Raman spectroscopic studies of uranium-containing aragonite and calcite from x-ray absorption spectra collected from the National Synchrotron Light Source, Brookhaven National Laboratory.

Research and Development in the Physical, Engineering, and Life Sciences, Calcium Compounds NEC, Calcium Carbonate, Nuclear R&D ex Energy, Nuclear research, Absorption spectra, Calcium compounds, Aragonite, Calcite

---

Speciation of uranium in Fernald soils by molecular spectroscopic methods: characterization of untreated soils

Article Abstract:

Most of the uranium in uranium-contaminated soils exist as discrete particulates of hexavalent uranium, including phosphates, hydroxides and ill-defined organic complexes. This can be gleaned from data derived from a combination of X-ray absorption, optical luminescence and Raman vibrational spectroscopies applied on contaminated soils from the Dept. of Energy's former uranium facility in Fernald, OH. Complementary spectroscopic techniques allowed the identification of specific chemical forms of uranium in the soil, namely, autenite-like and schoepite-like phases.

Methods, Composition, Pollutants, Uranium, Molecular spectroscopy

---

Remediation of soils and wastes contaminated with uranium and toxic metals

Article Abstract:

Researchers from the Department of Applied Science, Brookhaven National Laboratory developed a method to remediate soils contaminated by toxic metals and uranium by extracting citric acid followed by biodegradation of the contaminants by Pseudomonas fluorescens and finally photodegradation to precipitate and recover the metals.

Chemical industry, Uranium industry

Similar abstracts:

• Abstracts: Tolerance to sudden organic solvent shocks by soil bacteria and characterization of Pseudomonas putida strains isolated from toluene polluted sites
• Abstracts: Effects of oxidation state on metal ion binding by Medicago sativa (alfalfa): atomic and x-ray absorption spectroscopic studies with Fe( II) and Fe(III)
• Abstracts: Degradation kinetics of atrazine and its degradation products with ozone and OH radicals: a predictive tool for drinking water treatment
• Abstracts: Influence of level and form of chlorine on the formation of chlorinated dioxins, dibenzofurans, and benzenes during combustion of an artificial fuel in a laboratory reactor
• Abstracts: Prediction of principal metal-binding solid phases in estuarine sediments from color image analysis. Characterization of lanthanide ions binding sites in the cell wall of Pseudomonas aeruginosa

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.