Solubilities and speciation of radionuclides in brines: Technical program plan, Fiscal years 1988, 1989: Revised

Technical Report · Fri Jun 26 00:00:00 EDT 1987

OSTI ID:6630362

Bucher, J; Edelstein, N

The objective of this program is to identify and obtain appropriate thermodynamic testing data on the solubilities of compounds and on the solution complexes of important waste radionuclides which are likely to form in the salt repository. Information on the chemical behavior of the waste radionuclides is important for site selection and characterization, and is necessary for demonstrating that the expected performance of the repository site will be in compliance with technical criteria stated in 10CFR60. Basic thermodynamic test data will be obtained on the nature and solubilities of specific compounds in brines, and on the formation constants of specific solution complexes for the waste radionuclides which are pertinent to salt repositories. Such information is needed for the thermodynamic data base to be used in predictive geochemical models and for the interpretation of site specific measurements. Although data could be obtained with salt cores for specific sites, there is a very wide variation in the components of various salt cores even from the same site. Thus, from such measurements it is impossible to determine the important factors affecting the solubilities and speciation of the radionuclides. However by the use of synthetic brine solutions, where all the components are known and controlled, it is possible to determine for experimental measurements the important components which control the solubilities and transport of the key radionuclides. Such data can then be used for predictive modeling of radionuclide solubility and transport under repository conditions.

• Research Organization: Battelle Memorial Inst., Columbus, OH (USA). Office of Nuclear Waste Isolation; Lawrence Berkeley Lab., CA (USA)
• DOE Contract Number: AC02-87CH10290
• OSTI ID: 6630362
• Report Number(s): BMI/ONWI/C-266; ON: TI89000069; TRN: 89-003427
• Resource Relation: Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
HIGH-LEVEL RADIOACTIVE WASTES
UNDERGROUND DISPOSAL
RADIOACTIVE WASTE FACILITIES
SITE CHARACTERIZATION
SOLUBILITY
EVALUATION
BRINES
COMPLIANCE
RADIOACTIVE WASTE MANAGEMENT
RADIONUCLIDE MIGRATION
REGULATIONS
SALT DEPOSITS
SPENT FUELS
THERMODYNAMIC PROPERTIES
ENERGY SOURCES
ENVIRONMENTAL TRANSPORT
FUELS
GEOLOGIC DEPOSITS
MANAGEMENT
MASS TRANSFER
MATERIALS
NUCLEAR FACILITIES
NUCLEAR FUELS
PHYSICAL PROPERTIES
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
REACTOR MATERIALS
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES
052002* - Nuclear Fuels- Waste Disposal & Storage
053000 - Nuclear Fuels- Environmental Aspects