Cesium Isotherm Testing with Spherical Resorcinol-Formaldehyde Resin at High Sodium Concentrations

Russell, Renee L.¹  Fiskum, Sandra K.¹  Smoot, Margaret R.¹  Rinehart, Donald E.¹ 

[1]Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

关键词: CESIUM IONS;    RESORCINOL;    RADIOACTIVE WASTE PROCESSING;    RADIOACTIVE WASTE FACILITIES;    HANFORD RESERVATION;    CESIUM;    RESINS;    SODIUM;    CONCENTRATION RATIO;    FORMALDEHYDE;    SPHERES;   

DOI  :  10.2172/1255406
RP-ID  :  PNNL--25277
RP-ID  :  RPT-SRFBC--001 Rev. 0
PID  :  OSTI ID: 1255406
Others  :  Other: 830403000
Others  :  TRN: US1601415

学科分类：核能源与工程

美国|英语

来源: SciTech Connect

【 摘 要 】

Washington River Protection Solutions (WRPS) is developing a Low-Activity Waste Pretreatment System (LAWPS) to provide low-activity waste (LAW) directly to the Hanford Tank Waste Treatment and Immobilization Plant (WTP) Low-Activity Waste Facility for immobilization. The pretreatment that will be conducted on tank waste supernate at the LAWPS facility entails filtration to remove entrained solids and cesium (Cs) ion exchange to remove Cs from the product sent to the WTP. Currently, spherical resorcinol-formaldehyde (sRF) resin (Microbeads AS, Skedsmokorset, Norway) is the Cs ion exchange resin of choice. Most work on Cs ion exchange efficacy in Hanford tank waste has been conducted at nominally 5 M sodium (Na). WRPS is examining the possibility of processing supernatant at high Na concentrations???up to 8 M Na???to maximize processing efficiency through the LAWPS. Minimal Cs ion exchange work has been conducted at 6 M and 8 M Na concentrations..