Release of organic chelating agents from solidified decontamination wastes
In order to provide technical information needed by the US Nuclear Regulatory Commission to evaluate the adequacy of near-surface disposal of decontamination wastes, Brookhaven National Laboratory has measured the release of organic complexing agents from simulated decontamination resin wastes solidified in cement and vinyl ester-styrene. The simulated waste consisted of either mixed bed ion-exchange resins or anion exchange resins equilibrated with EDTA, oxalic acid, citric acid, picolinic acid, formic acid, simulated LOMI reagent or the LND-101A decontamination reagent. The standard procedure ANS 16.1 appeared to be adequate for determining a leachability index for organic acids for comparing the leach resistance of decontamination waste forms. Leachability indexes appeared to be specific for each organic acid. Further, the apparent diffusivities were generally less than those observed for Cs releases from cement wastes forms. The finder material and the composition of the simulated wastes affected the release of the reagents.
- Research Organization:
- Brookhaven National Lab., Upton, NY (USA); Nuclear Regulatory Commission, Washington, DC (USA)
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 7125915
- Report Number(s):
- BNL-NUREG-39007; CONF-860905-28; ON: TI87004171
- Country of Publication:
- United States
- Language:
- English
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Release of organic reagents from solidified decontamination wastes
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Related Subjects
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
36 MATERIALS SCIENCE
360604 -- Materials-- Corrosion
Erosion
& Degradation
BUILDING MATERIALS
CEMENTS
CHELATING AGENTS
CLEANING
DATA
DECONTAMINATION
DISSOLUTION
EXPERIMENTAL DATA
INFORMATION
LEACHING
MATERIALS
NUMERICAL DATA
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
POLYMERS
RESINS
SEPARATION PROCESSES
SOLID WASTES
SOLUBILITY
WASTE FORMS
WASTES