Migration and Retardation of Chemical Toxic Components from Radioactive Waste - Hydrochemical Aspects
A systematic analysis of nuclear power plant (NPP) operation and radioactive wastes disposal (near-surface disposal and geologic disposal) in underground repositories has provided the basis for a comparison between the radiotoxicity and chemotoxicity as part of an EIA (environmental impact assessment) procedure. This contribution summarizes the hydrochemical mechanisms of transport and retardation processes, chemistry and migration behavior of radionuclides and chemical toxics in natural sorbents, especially bentonites. The effect of solubility and dissolution reactions, diffusion and sorption/desorption, complexation and variations in the aqueous phase composition, pH-value and oxidation-reduction properties and other phenomena affecting distribution coefficients (Kd values) is discussed.
- Research Organization:
- Institute of Chemical Technology, Department of Analytical Chemistry, (CZ); TGM Water Research Institute, (CZ)
- Sponsoring Organization:
- none (US)
- OSTI ID:
- 827448
- Resource Relation:
- Conference: Waste Management 2003 Symposium, Tucson, AZ (US), 02/23/2003--02/27/2003; Other Information: PBD: 24 Feb 2003
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
54 ENVIRONMENTAL SCIENCES
CHEMISTRY
DIFFUSION
DISSOLUTION
DISTRIBUTION
NUCLEAR POWER PLANTS
PH VALUE
RADIOACTIVE WASTES
RADIOISOTOPES
SOLUBILITY
TRANSPORT
WASTE MANAGEMENT