Design Objectives for the Efficient Use of Natural Uranium and Plutonium

2015 ◽  
pp. 68-75
Keyword(s):  
Natural Uranium

Evaluation of U(VI) adsorption from Ca2+ coexisted bicarbonate solution by synthetic inorganic and mineral materials

2020 ◽  
Vol 108 (12) ◽  
pp. 955-965
Author(s):  
Jun Liu ◽  
Shilong Shi ◽  
XiaoYu Yin ◽  
Yong Jin ◽  
Chunhai Lu ◽  
...  
Keyword(s):  
Manganese Dioxide ◽  
Structural Stability ◽  
Adsorption Process ◽  
Natural Uranium ◽  
Chemical Adsorption ◽  
Surface Chemical ◽  
Weakly Alkaline ◽  
Adsorption Behaviors ◽  
Study Results ◽  
Kinetics And Isotherms

AbstractPart weakly alkaline natural uranium-containing water contains abundant Ca2+ and (bi)carbonate. Herein, two kinds of materials, namely mesoporous hydrous manganese dioxide (MHMO) and polyacrylonitrile (PAN)/dolomite composites were synthesized and characterized to evaluate their adsorption behaviors of U(VI) from Ca2+ coexisted bicarbonate solution. Characterization results showed that both samples exhibited good structural stability after U(VI) load. MHMO could coordinate U(VI) through the surface –OH sites, whereas an unfavorable U(VI) adsorption onto mineral composites was deduced. Adsorption tests indicated that increasing Ca2+ and (bi)carbonate amounts suppress U(VI) adsorption process, and ∼19.0 mg/g U adsorbed by MHMO could be obtained in solutions with 1 mmol/L [Ca2+], 5 mmol/L [CO3]T, 50 mg/L [U(VI)]initial at pH 8.0. Moreover, a heterogeneous surface chemical adsorption was verified through kinetics and isotherms study. Results from our study should be useful in exploring the adsorption behaviors and mechanisms of U(VI) on selected inorganic and mineral materials from natural uranium-containing water.

Laser enrichment: Its impact on the market for natural uranium

Energy ◽  
1989 ◽  
Vol 14 (5) ◽  
pp. 291-297
Author(s):  
A.D. Owen
Keyword(s):  
Natural Uranium

Fast Neutron Spectra from Natural Uranium Target Bombarded with High Energy Electrons

1971 ◽  
Vol 8 (3) ◽  
pp. 173-175 ◽  
Author(s):  
Itsuro KIMURA ◽  
Shu A. HAYASHI ◽  
Katsuhei KOBAYASHI ◽  
shuji YAMAMOTO ◽  
Toshikazu SHIBATA
Keyword(s):  
Fast Neutron ◽  
High Energy ◽  
Natural Uranium ◽  
Neutron Spectra ◽  
High Energy Electrons ◽  
Uranium Target

scholarly journals Metabolomics identifies a biological response to chronic low-dose natural uranium contamination in urine samples

Metabolomics ◽  
2013 ◽  
Vol 9 (6) ◽  
pp. 1168-1180 ◽  
Author(s):  
Stéphane Grison ◽  
Gaëlle Favé ◽  
Matthieu Maillot ◽  
Line Manens ◽  
Olivia Delissen ◽  
...  
Keyword(s):  
Low Dose ◽  
Biological Response ◽  
Natural Uranium ◽  
Urine Samples ◽  
Uranium Contamination

Determination of natural uranium traces using solid state track detectors

1981 ◽  
Vol 5 (4) ◽  
pp. 384
Author(s):  
D. Veličković ◽  
I. Mirić ◽  
P. Mirić ◽  
P. Bojović
Keyword(s):  
Solid State ◽  
Natural Uranium

scholarly journals Bone as a Possible Target of Chemical Toxicity of Natural Uranium in Drinking Water

2005 ◽  
Vol 113 (1) ◽  
pp. 68-72 ◽  
Author(s):  
Päivi Kurttio ◽  
Hannu Komulainen ◽  
Aila Leino ◽  
Laina Salonen ◽  
Anssi Auvinen ◽  
...  
Keyword(s):  
Drinking Water ◽  
Natural Uranium ◽  
Chemical Toxicity

Equilibrium Spectrum and Diffusion Length in Natural Uranium

1958 ◽  
Vol 3 (6) ◽  
pp. 772-773 ◽  
Author(s):  
D. Meneghetti ◽  
H. H. Hummel ◽  
W. B. Loewenstein
Keyword(s):  
Diffusion Length ◽  
Natural Uranium ◽  
Equilibrium Spectrum ◽  
And Diffusion
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