Effect of chelating agents on the migration of radionuclides
Conference
·
· Transactions of the American Nuclear Society; (United States)
OSTI ID:7066712
It has been stated that chelate formation of radionuclides with chelating agents such as decontamination reagents (e.g., ethylenediaminetetraacetic acid) and natural organic compounds (e.g., fulvic and humic acids) found in groundwater significantly influence the migration behavior of radionuclides. They form extremely strong chelates with radionuclides and mobilizes these radionuclides from the radioactive waste (especially from low-level waste) repository. In this study, a new retardation factor incorporating a chelation effect is introduced. A general convection-dispersion transport equation that includes a degradation of solute caused by various physicochemical reactions in porous medium is used and solved by an analytical method.
- OSTI ID:
- 7066712
- Report Number(s):
- CONF-911107--
- Conference Information:
- Journal Name: Transactions of the American Nuclear Society; (United States) Journal Volume: 64
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
052002* -- Nuclear Fuels-- Waste Disposal & Storage
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
54 ENVIRONMENTAL SCIENCES
540230 -- Environment
Terrestrial-- Radioactive Materials Monitoring & Transport-- (1990-)
540330 -- Environment
Aquatic-- Radioactive Materials Monitoring & Transport-- (1990-)
AMINO ACIDS
CARBOXYLIC ACIDS
CHELATES
CHELATING AGENTS
CLEANING
COMPLEXES
DECONTAMINATION
EDTA
ENVIRONMENTAL TRANSPORT
FULVIC ACIDS
GEOLOGIC FORMATIONS
GROUND WATER
HIGH-LEVEL RADIOACTIVE WASTES
HUMIC ACIDS
HYDROGEN COMPOUNDS
LOW-LEVEL RADIOACTIVE WASTES
MASS TRANSFER
MATERIALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
POROSITY
POROUS MATERIALS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
RADIONUCLIDE MIGRATION
WASTES
WATER
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
54 ENVIRONMENTAL SCIENCES
540230 -- Environment
Terrestrial-- Radioactive Materials Monitoring & Transport-- (1990-)
540330 -- Environment
Aquatic-- Radioactive Materials Monitoring & Transport-- (1990-)
AMINO ACIDS
CARBOXYLIC ACIDS
CHELATES
CHELATING AGENTS
CLEANING
COMPLEXES
DECONTAMINATION
EDTA
ENVIRONMENTAL TRANSPORT
FULVIC ACIDS
GEOLOGIC FORMATIONS
GROUND WATER
HIGH-LEVEL RADIOACTIVE WASTES
HUMIC ACIDS
HYDROGEN COMPOUNDS
LOW-LEVEL RADIOACTIVE WASTES
MASS TRANSFER
MATERIALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
POROSITY
POROUS MATERIALS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
RADIONUCLIDE MIGRATION
WASTES
WATER