scholarly journals Cesium Removal from Tank Waste Simulants Using Crystalline Silicotitanate at 12% and 100% TSCR Bed Heights

2019 ◽  
Author(s):  
Sandra K. Fiskum ◽  
Amy M. Rovira ◽  
Jarrod R. Allred ◽  
Heather A. Colburn ◽  
Margaret R. Smoot ◽  
...  
Keyword(s):  
Cesium Removal ◽  
Crystalline Silicotitanate ◽  
Tank Waste

scholarly journals Ion Exchange Processing of AP-105 Hanford Tank Waste through Crystalline Silicotitanate in a Staged 2- then 3-Column System

2021 ◽  
Author(s):  
Sandra Fiskum ◽  
Amy Westesen ◽  
Andrew Carney ◽  
Truc LT Trang-Le ◽  
Reid Peterson
Keyword(s):  
Ion Exchange ◽  
Column System ◽  
Crystalline Silicotitanate ◽  
Tank Waste

Cesium removal from AP-105 Hanford tank waste using spherical resorcinol formaldehyde resin

2019 ◽  
Vol 54 (12) ◽  
pp. 1932-1941 ◽  
Author(s):  
Sandra K. Fiskum ◽  
Heather A. Colburn ◽  
Amy M. Rovira ◽  
Jarrod R Allred ◽  
Margaret R. Smoot ◽  
...  
Keyword(s):  
Formaldehyde Resin ◽  
Resorcinol Formaldehyde ◽  
Cesium Removal ◽  
Tank Waste

scholarly journals Hanford tank waste supernatant cesium removal test plan

1996 ◽  
Author(s):  
D.W., Westinghouse Hanford Hendrickson
Keyword(s):  
Test Plan ◽  
Cesium Removal ◽  
Tank Waste

scholarly journals Modified Isotherm Modeling to Predict Cs Exchange with Crystalline Silicotitanate in Tank Waste Simulants

2020 ◽  
Author(s):  
Amy Westesen ◽  
Emily Campbell ◽  
Gregg Lumetta ◽  
Sandra Fiskum ◽  
Reid Peterson
Keyword(s):  
Isotherm Modeling ◽  
Crystalline Silicotitanate ◽  
Tank Waste

Proof-of-Concept Flowsheet Tests for Cesium Removal from Tank Waste by Caustic-Side Solvent Extraction

2002 ◽  
Vol 713 ◽  
Author(s):  
David B. Chamberlain ◽  
Scott Aase ◽  
Hassan A. Arafat ◽  
Cliff Conner ◽  
Ralph A. Leonard ◽  
...  
Keyword(s):  
Solvent Extraction ◽  
National Laboratory ◽  
Argonne National Laboratory ◽  
Decontamination Factor ◽  
High Level Waste ◽  
Savannah River ◽  
Alkyl Aryl ◽  
Oak Ridge ◽  
Cesium Removal ◽  
Tank Waste

ABSTRACTA caustic-side solvent extraction (CSSX) process to remove cesium from Savannah River Site (SRS) high-level waste has been developed through a joint program with Oak Ridge National Laboratory (ORNL), the Savannah River Technical Center (SRTC), and Argonne National Laboratory (ANL). The CSSX solvent consists of four components: (1) an extractant, a calixarene crown, calix[4]arene-bis(tert-octylbenzo-crown-6) designated BOBCalixC6, (2) a modifier, an alkyl aryl polyether, 1-(2,2,3,3,-tetrafluoropropoxy)-3-(4-sec-butylphenoxy)-2-propanol, also called Cs-7SB, (3) a suppressant, an alkyl amine, trioctylamine (TOA), and (4) a diluent, Isopar®L. The solvent composition is 0.01 M BOBCalixC6, 0.50 M Cs-7SB, and 0.001 M TOA in Isopar®L. In this program we have developed and demonstrated a flowsheet that can be used to process SRS tank waste. To this end, a series of flowsheet tests were completed using simulated waste in a 2-cm centrifugal contactor at ANL. Three short-term (3-4 hours) tests were completed to demonstrate various aspects of the flowsheet. These tests were followed by a 71-h test where the solvent was recycled 42 times. In each case, we met or exceeded the key process goals: (1) cesium removal from the waste with a decontamination factor greater than 40,000, (2) concentration of cesium in the aqueous strip effluent by a factor of 15 using dilute nitric acid, and (3) stripping the solvent sufficiently to allow it to be recycled many times. The results from the 71-h test are discussed.

Spherical Resorcinol‐Formaldehyde Resin Testing for Cesium Removal from Hanford Tank Waste Simulant

2006 ◽  
Vol 41 (11) ◽  
pp. 2461-2474 ◽  
Author(s):  
S. K. Fiskum ◽  
D. L. Blanchard ◽  
M. J. Steele ◽  
K. K. Thomas ◽  
T. Trang‐Le ◽  
...  
Keyword(s):  
Formaldehyde Resin ◽  
Resorcinol Formaldehyde ◽  
Cesium Removal ◽  
Tank Waste
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