Small Column Ion Exchange Analysis for Removal of Cesium from SRS Low Curie Salt Solutions Using Crystalline Silicotitanate (CST) Resin

Aleman, S.E.

doi:10.2172/823122

Cited by 9 publications

(12 citation statements)

References 4 publications

(5 reference statements)

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“…As described by Aleman (2003), the CST total capacity calculated by ZAM (parameter a) was multiplied by a factor of 0.68 to account for the difference between CST powder and the engineered form of the material.…”

Section: The Cesium-cst Systemmentioning

confidence: 99%

Modeling of Ion-Exchange for Cesium Removal From Dissolved Saltcake in SRS Tanks 1-3, 37 and 41

Smith¹

2007

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Section: The Cesium-cst Systemmentioning

confidence: 99%

Modeling of Ion-Exchange for Cesium Removal From Dissolved Saltcake in SRS Tanks 1-3, 37 and 41

Smith¹

2007

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“…The ZAM code (Version 4) has been used in previous SRNL studies modeling cesium adsorption on CST with good success (Hamm et al, 2002;Aleman, 2003;Smith, 2007). The Liquid Chromatography code VERSE-LC (Whitley and Wang, 1998) was used to perform the ion-exchange column calculations.…”

Section: Quality Assurancementioning

confidence: 99%

“…The VERSE-LC code (Berninger et al, 1991) was used for the column modeling presented in this report based on its availability and its use in previous ion-exchange analysis efforts at SRNL (Hamm et al, 2002;Aleman, 2003;Smith, 2007). Section 3 briefly discusses the transport model used to describe ion-exchange column behavior.…”

Section: Report Overviewmentioning

confidence: 99%

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Modeling CST Ion Exchange for Cesium Removal From Scix Batches 1 - 4

Smith¹

2011

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DISCLAIMERThis work was prepared under an agreement with and funded by the U.S. Government. Neither the U. S. Government or its employees, nor any of its contractors, subcontractors or their employees, makes any express or implied: 1. warranty or assumes any legal liability for the accuracy, completeness, or for the use or results of such use of any information, product, or process disclosed; or 2. representation that such use or results of such use would not infringe privately owned rights; or 3. endorsement or recommendation of any specifically identified commercial product, process, or service.

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“…Bucket average lag column cesium breakthrough profiles were calculated by spreadsheet based on the cumulative cesium breakthrough and the solution volume processed. Detailed descriptions of the methodology used were reported by Aleman and Hamm [17,18].…”

Section: Modelingmentioning

confidence: 99%

Comparisons of Crystalline Silicotitanate and Resorcinol Formaldehyde Media for Cesium Removal by In-tank Column Processing

Smith

Lee

King

et al. 2008

Separation Science and Technology

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Chemical and thermal performance of crystalline silicotitanate (CST) and resorcinolformaldehyde (RF) ion exchange media were predicted for column configurations designed for installation in high level waste tanks and intended for cesium removal from radioactive waste supernates. Modeling predictions for the processing of a known Savannah River Site tank waste composition were generated. In a two column configuration under presumed nominal operating conditions (432 gallon packed bed, 10 gpm liquid flow, 25 ºC, 45 nCi/g average breakthrough limit) with lead/lag column rotation between processing cycles, approximately two cycles were predicted to treat 1,000,000 gallons of radioactive waste with CST as compared to three cycles predicted for RF. However, this processing mode was shown to be highly unfavorable for RF due to the fact that the lead column is unnecessarily exposed to large radiation doses during movement of the cesium mass transfer zone into the lag column. Thermal modeling calculations indicated that maximum temperatures within stagnant, packed CST and RF columns containing the highest anticipated cesium loading and no active cooling will reach 128 and 78 ºC, respectively, within 6 days. Active cooling maintains the cesiumsaturated CST and RF columns below 88 and 41 ºC, respectively, under stagnant flow conditions.

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Small Column Ion Exchange Analysis for Removal of Cesium from SRS Low Curie Salt Solutions Using Crystalline Silicotitanate (CST) Resin

Cited by 9 publications

References 4 publications

Modeling of Ion-Exchange for Cesium Removal From Dissolved Saltcake in SRS Tanks 1-3, 37 and 41

Modeling of Ion-Exchange for Cesium Removal From Dissolved Saltcake in SRS Tanks 1-3, 37 and 41

Modeling CST Ion Exchange for Cesium Removal From Scix Batches 1 - 4

Comparisons of Crystalline Silicotitanate and Resorcinol Formaldehyde Media for Cesium Removal by In-tank Column Processing

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