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Title: Plutonium and uranium adsorption on monosodium titanate

Abstract

Adsorption of Pu and U onto monosodium titanate (MST) in alkaline salt solution was measured. Changes in MST particle size distribution do not significantly affect the loadings of actinides. Max loading of plutonium-239 is 0.68 wt% at 0.79 mg/L Pu, below the infinitely safe value of 0.80 wt%. Max loading of uranium-235 onto MST is 1.4 wt% at a concentration of 20.3 {plus_minus} 2.0 mg/L U, slightly higher than the calculated infinitely safe limit of 1.2 wt%. Experimental data indicated there is competition between plutonium and uranium for sites on the MST, and that the loading will favor the higher concentration species. Since the solubility of uranium is 10--100 times higher than of plutonium, uranium will be loaded to its maximum limit, but plutonium will be below its maximum limit. To ensure that the concentration of fissile materials cannot exceed nuclear safety limits, it is recommended that plutonium and uranium solubility tests be conducted with solutions which bound the compositions of waste which will be treated in ITP process.

Authors:
;
Publication Date:
Research Org.:
Savannah River Site (SRS), Aiken, SC (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10114343
Report Number(s):
WSRC-RP-92-093
ON: DE93005298
DOE Contract Number:  
AC09-89SR18035
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 13 Aug 1992
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; 38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY; PLUTONIUM; ADSORPTION; URANIUM; TITANATES; SORPTIVE PROPERTIES; RADIOACTIVE WASTE PROCESSING; SODIUM COMPOUNDS; PARTICLE SIZE; SALTS; SOLUTIONS; DECONTAMINATION; PLUTONIUM 239; URANIUM 235; 052001; 400702; WASTE PROCESSING; PROPERTIES OF RADIOACTIVE MATERIALS

Citation Formats

Hobbs, D T, and Walker, D D. Plutonium and uranium adsorption on monosodium titanate. United States: N. p., 1992. Web. doi:10.2172/10114343.
Hobbs, D T, & Walker, D D. Plutonium and uranium adsorption on monosodium titanate. United States. https://doi.org/10.2172/10114343
Hobbs, D T, and Walker, D D. 1992. "Plutonium and uranium adsorption on monosodium titanate". United States. https://doi.org/10.2172/10114343. https://www.osti.gov/servlets/purl/10114343.
@article{osti_10114343,
title = {Plutonium and uranium adsorption on monosodium titanate},
author = {Hobbs, D T and Walker, D D},
abstractNote = {Adsorption of Pu and U onto monosodium titanate (MST) in alkaline salt solution was measured. Changes in MST particle size distribution do not significantly affect the loadings of actinides. Max loading of plutonium-239 is 0.68 wt% at 0.79 mg/L Pu, below the infinitely safe value of 0.80 wt%. Max loading of uranium-235 onto MST is 1.4 wt% at a concentration of 20.3 {plus_minus} 2.0 mg/L U, slightly higher than the calculated infinitely safe limit of 1.2 wt%. Experimental data indicated there is competition between plutonium and uranium for sites on the MST, and that the loading will favor the higher concentration species. Since the solubility of uranium is 10--100 times higher than of plutonium, uranium will be loaded to its maximum limit, but plutonium will be below its maximum limit. To ensure that the concentration of fissile materials cannot exceed nuclear safety limits, it is recommended that plutonium and uranium solubility tests be conducted with solutions which bound the compositions of waste which will be treated in ITP process.},
doi = {10.2172/10114343},
url = {https://www.osti.gov/biblio/10114343}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Aug 13 00:00:00 EDT 1992},
month = {Thu Aug 13 00:00:00 EDT 1992}
}