cesium removal using cst
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cesium removal using cst

Cesium Removal Using CST - DD KM-IT

2015-4-2  Cesium Removal Using Crystalline Silicotitanate Tanks Focus Area DOE/EM-0415. Demonstrated at Hanford Site Richland, Washington and Oak Ridge Reservation ... IE-911 over organic ion-exchange resins for cesium removal. Ionsiv IE-911 is a CST sorbent developed jointly by DOE and industry. Ionsiv IE-911 was initially developed

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Design of a carousel process for cesium removal using ...

2004-4-16  A three-column carousel process based on a pelletized form of CST powder was designed to remove radioactive 137 Cs + from SRS nuclear wastes. A multicomponent ion-exchange equilibrium model was used to generate cesium loading data, which were fit to the Langmuir equation to obtain effective single-component cesium isotherm parameters for representative wastes.

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Cesium Ion Exchange Using Crystalline Silicotitanate with ...

2019-1-22  waste supernate by filtering to remove solids and processing through ion exchange columns to remove cesium. The ion exchange media is currently (since 2018) targeted to be crystalline silicotitanate (CST). This material has been produced as an engineered form (generally spherical beads) by Honeywell UOP LLC (Des Plaines, IL).

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Selective removal of cesium and strontium by crystalline ...

2017-4-22  The cesium K d values varied from 15,000 to 124,000 ml g −1 and Sr K d values varied from 610 to 33,000 ml g −1 during the performance evaluation of 17 inorganic ion exchange materials (pharmacosiderite, sodium zirconium silicate, different forms of CST materials developed by Sandia National Laboratory, zeolite exchangers, etc.) for removal ...

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Conceptual Study of In-Tank Cesium Removal Using an ...

2020-1-22  SUMMARY This conceptual study investigates a generic in-tank cesium removal flowsheet using two inorganic ion exchange materials: titanates (CST) and IE-96 zeolites. The mathematical model derived for the study assumed a batch process where the ion exchange material and waste are brought into contact in a storage tank with optimal'mixing.

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Preliminary Ion Exchange Modeling for Removal of Cesium ...

The performance of a proposed backup ion-exchange column using IONSIV IE-911 (CST in its engineered-form) material for the removal of cesium from Hanford high

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Elemental characterization of crystalline silicotitanate ...

To expedite vitrification of low activity waste at the Hanford Site, a Tank-Side Cesium Removal system, using crystalline silicotitanate (CST) as the ion exchange media, is being evaluated.

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Designing a commercial ion‐exchange carousel to treat

Simulation results showed that cesium removal behavior in the pilot-scale test of CCIX experiment, where the column length is 22 ft and the CST is pulsed 1 ft in every 24 hours, was well predicted ...

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EFFICIENCY OF FORTUM'S CSTREAT AND SRTREAT IN

2020-3-30  2.2 Efficiency of cesium removal in the Circulating Water Cooling System The first cesium removal system started its operation in June 17, 2011 [1]. This system was based on the use of engineered zeolites, and until the end of 2013 it had 3treated 203 740 m of water [2]. This system was in continuous operation until 26 April 2012.

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Adsorption kinetics and equilibrium modeling of cesium

2012-5-25  Crystalline silicotitanate (CST) is excellent for the adsorption of cesium, with a distribution coefficient (K d) of up to 10 5 –10 6 mL/g [8, 9]; however, a major drawback of using CST is that the time to reach adsorption equilibrium can be as long as 10–12 days .

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Design of a carousel process for cesium removal using ...

2004-4-16  A three-column carousel process based on a pelletized form of CST powder was designed to remove radioactive 137 Cs + from SRS nuclear wastes. A multicomponent ion-exchange equilibrium model was used to generate cesium loading data, which were fit to the Langmuir equation to obtain effective single-component cesium isotherm parameters for representative wastes.

More

Cesium Ion Exchange Using Crystalline Silicotitanate with ...

2019-1-22  waste supernate by filtering to remove solids and processing through ion exchange columns to remove cesium. The ion exchange media is currently (since 2018) targeted to be crystalline silicotitanate (CST). This material has been produced as an engineered form (generally spherical beads) by Honeywell UOP LLC (Des Plaines, IL).

More

Conceptual Study of In-Tank Cesium Removal Using an ...

2020-1-22  SUMMARY This conceptual study investigates a generic in-tank cesium removal flowsheet using two inorganic ion exchange materials: titanates (CST) and IE-96 zeolites. The mathematical model derived for the study assumed a batch process where the ion exchange material and waste are brought into contact in a storage tank with optimal'mixing.

More

Selective removal of cesium and strontium by crystalline ...

2017-4-22  The cesium K d values varied from 15,000 to 124,000 ml g −1 and Sr K d values varied from 610 to 33,000 ml g −1 during the performance evaluation of 17 inorganic ion exchange materials (pharmacosiderite, sodium zirconium silicate, different forms of CST materials developed by Sandia National Laboratory, zeolite exchangers, etc.) for removal ...

More

Cesium Removal from Tank Waste Simulants Using

2019-8-12  Cesium Removal from Tank Waste Simulants Using Crystalline Silicotitanate at 12% and 100% TSCR Bed Heights SK Fiskum AM Rovira JR Allred HA Colburn MR Smoot AM Carney TT Trang-Le MG Cantaloub EC Buck RA Peterson April 2019 Prepared for the U.S. Department of Energy under Contract DE-AC05-76RL01830 Pacific Northwest National Laboratory

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Cesium Ion Exchange Testing Using a Three- Column

2021-3-30  Cesium Ion Exchange Testing Using a Three-Column System with Crystalline Silicotitanate and Hanford Tank Waste ... of a Tank-Side Cesium Removal (TSCR) system, which in effect filters tank waste supernate and ... of filtered AP-107 supernate using CST, Lot 2002009604, that passed through a 25-mesh filter. This

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Ion exchange kinetics of cesium for various reaction ...

Simulation results showed that cesium removal behavior in the pilot-scale test of CCIX experiment, where the column length is 22 ft and the CST is pulsed 1 ft in every 24 hours, was well predicted by using the values of the effective diffusivities of 1.0 to 6.0 x 10 -11 m2/s.

More

Preliminary Ion Exchange Modeling for Removal of Cesium ...

However, the CST material is still being considered as a potential backup ion-exchanger material. The performance of a proposed backup ion-exchange column using IONSIV IE-911 (CST in its engineered-form) material for the removal of cesium from Hanford high level radioactive alkaline waste is discussed.

More

EFFICIENCY OF FORTUM'S CSTREAT AND SRTREAT IN

2020-3-30  2.2 Efficiency of cesium removal in the Circulating Water Cooling System The first cesium removal system started its operation in June 17, 2011 [1]. This system was based on the use of engineered zeolites, and until the end of 2013 it had 3treated 203 740 m of water [2]. This system was in continuous operation until 26 April 2012.

More

Optimization of Nb-substitution and Cs+/Sr+2 ion

To expedite vitrification of low activity waste at the Hanford Site, a Tank-Side Cesium Removal system, using crystalline silicotitanate (CST) as the ion exchange media, is being evaluated.

More

Cesium Removal from Tank Waste Simulants Using

2019-8-12  Cesium Removal from Tank Waste Simulants Using Crystalline Silicotitanate at 12% and 100% TSCR Bed Heights SK Fiskum AM Rovira JR Allred HA Colburn MR Smoot AM Carney TT Trang-Le MG Cantaloub EC Buck RA Peterson April 2019 Prepared for the U.S. Department of Energy under Contract DE-AC05-76RL01830 Pacific Northwest National Laboratory

More

Cesium Ion Exchange Testing Using a Three- Column

2021-3-30  Cesium Ion Exchange Testing Using a Three-Column System with Crystalline Silicotitanate and Hanford Tank Waste ... of a Tank-Side Cesium Removal (TSCR) system, which in effect filters tank waste supernate and ... of filtered AP-107 supernate using CST, Lot 2002009604, that passed through a 25-mesh filter. This

More

Evaluation of Crystalline Silicotitanate and Self ...

2020-1-13  The purpose of this study was to examine the feasibility of using CST for cesium removal from DWPF recycle, and to compare two ion-exchange materials, Duolite GT-73 and SAMMS, for chemisorption of mercury. Important variables in assessing the viability of these materials under conditions found at DWPF are pH, initial cesium concentration,

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Ion exchange kinetics of cesium for various reaction ...

Simulation results showed that cesium removal behavior in the pilot-scale test of CCIX experiment, where the column length is 22 ft and the CST is pulsed 1 ft in every 24 hours, was well predicted by using the values of the effective diffusivities of 1.0 to 6.0 x 10 -11 m2/s.

More

Temperature Effect of Cesium Exchange onto Crystalline ...

2021-11-9  Cesium Removal (TSCR) system to process Hanford tank waste supernates in preparation for vitrification. In addition to a filtration step, TSCR will remove cesium (Cs) using ion exchange columns filled with crystalline silicotitanate (CST) ion exchange media. CST is produced by Honeywell UOP, LLC.

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ION EXCHANGE KINETICS OF CESIUM FOR VARIOUS

2021-6-1  Simulation results showed that cesium removal behavior in the pilot-scale test of CCIX experiment, where the column length is 22 ft and the CST is pulsed 1 ft in every 24 hours, was well predicted by using the values of the effective diffusivities of 1.0 to 6.0 ×

More

EFFICIENCY OF FORTUM'S CSTREAT AND SRTREAT IN

2020-3-30  2.2 Efficiency of cesium removal in the Circulating Water Cooling System The first cesium removal system started its operation in June 17, 2011 [1]. This system was based on the use of engineered zeolites, and until the end of 2013 it had 3treated 203 740 m of water [2]. This system was in continuous operation until 26 April 2012.

More

Preliminary Ion Exchange Modeling for Removal of Cesium ...

However, the CST material is still being considered as a potential backup ion-exchanger material. The performance of a proposed backup ion-exchange column using IONSIV IE-911 (CST in its engineered-form) material for the removal of cesium from Hanford high level radioactive alkaline waste is discussed.

More

Page 1 Of ATA TRANSMllTAL 60579 1.~ EDT

cesium removal test using Hanford Single Shell Tank Saltcake from tanks 241-BY-110, 241-U-108, 243-11-109, 241-A-101, and 241-S-102 in a bench- scale column. silicotitanate. The cesium sorbent to be tested is crystalline TRADEMARK DISCLAIMER.

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Literature Review of Spherical Resorcinol-Formaldehyde

2014-10-20  determine cesium removal performance impacts based on these design updates. The test exception is addressed in Russell et al. (2012a) and is not applicable to the current literature review report. 24590-PTF-TEF-RT-10-00002, Rev 1 This test exception was received from BNI

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