ALUMINUM READINESS EVALUATION FOR ALUMINUM REMOVAL AND SODIUM HYDROXIDE REGENRATION FROM HANFORD TANK WASTE BY LITHIUM HYDROTALCITE PRECIPITATION

SAMS TL ; MASSIE HL

关键词: AR FACILITIES;    ALUMINIUM;    LITHIUM COMPOUNDS;    PRECIPITATION;    REMOVAL;    SODIUM HYDROXIDES;    PERFORMANCE TESTING;    RADIOACTIVE WASTE PROCESSING;    HANFORD RESERVATION;    REGENERATION;   

DOI  :  10.2172/1010332
RP-ID  :  RPP-48379 Rev 0
PID  :  OSTI ID: 1010332
Others  :  TRN: US1101913

学科分类：核能源与工程

美国|英语

来源: SciTech Connect

【 摘 要 】

A Technology Readiness Evaluation (TRE) performed by AREV A Federal Services, LLC (AFS) for Washington River Protection Solutions, LLC (WRPS) shows the lithium hydrotalcite (LiHT) process invented and patented (pending) by AFS has reached an overall Technology Readiness Level (TRL) of 3. The LiHT process removes aluminum and regenerates sodium hydroxide. The evaluation used test results obtained with a 2-L laboratory-scale system to validate the process and its critical technology elements (CTEs) on Hanford tank waste simulants. The testing included detailed definition and evaluation for parameters of interest and validation by comparison to analytical predictions and data quality objectives for critical subsystems. The results of the TRE would support the development of strategies to further mature the design and implementation of the LiHT process as a supplemental pretreatment option for Hanford tank waste.