Evaluation of New Inorganic Sorbents for Strontium and Actinide Removal from High-Level Nuclear Waste Solutions

Conference · Sun Mar 28 04:00:00 EST 2004

OSTI ID:825836

Hobbs, D T; Nyman, M; Medvedev, D G; Tripathi, A; Clearfield, A

Monosodium titanate (MST), a hydrous metal oxide sorbent, is the baseline material for the removal of 90Sr and alpha-emitting radionuclides (principally 238Pu, 239Pu, 240Pu and 237Np) from alkaline waste solutions generated during the processing of irradiated nuclear materials at the Savannah River Site. This material exhibits excellent performance characteristics for strontium removal. Plutonium removal is also good, but problematic at the estimated bonding concentration. We are currently developing new inorganic materials for improved sorption characteristics. These materials include sodium nonatitanates, pharmacosiderites and heteropolyniobates. We will present results evaluating the performance of these materials with simulated and actual high level nuclear waste solutions.

• Research Organization: Savannah River Technology Center, Aiken, SC; Sandia National Labs., Albuquerque, NM; Texas A& M University (US)
• Sponsoring Organization: USDOE Office of Science (SC) (US)
• OSTI ID: 825836
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
54 ENVIRONMENTAL SCIENCES
ACTINIDES
BONDING
EVALUATION
LIQUID WASTES
OXIDES
PLUTONIUM
PROCESSING
RADIOACTIVE WASTES
RADIOISOTOPES
REMOVAL
SODIUM
SORPTION
STRONTIUM
TITANATES