Radiotracer study of the interaction of radioactive pollutants with surface water sediments and suspended solids
Creators
- 1. Czech Technical Univ., Prague (Czech Republic). Dept. of Nuclear Chemistry
Description
Radiotracer method is used for the study of the interaction of selected radionuclides with freshwater solids with the aim of contributing to the knowledge of mechanisms and laws of the interaction, evaluating of the importance of the interaction for mathematical modelling of radionuclide transport in rivers and obtaining data suitable as input parameters for such modelling. At first, laboratory batch method for radiotracer study of the interaction is proposed and evaluated. Then the effects of important factors on the interaction are studied using 58Co, 85Sr and 137Cs, and suitable ways for mathematical description of the effects are proposed. Kinetics of the interaction is described using two-setup kinetic model and the dependence of parameters of the model on concentration of the solid phase is determined. The variability of the parameters due to seasonal and other variations in composition of water and solids in a river is examined and the parameters are used for analysis of migration of 137Cs in a river contaminated by accidental release of waste waters from a nuclear power plant. The possibilities and limitations of modelling the migration using simple migration model are analyzed. (author). 13 refs, 9 figs, 12 tabs
Additional details
Publishing Information
- Imprint Title
- Nuclear techniques in the study of pollutant transport in the environment. Interaction of solutes with geological media (methodological aspects)
- Imprint Pagination
- 343 p.
- Journal Page Range
- p. 99-121.
- ISSN
- 1011-4289
- Report number
- IAEA-TECDOC--713
INIS
- Country of Publication
- International Atomic Energy Agency (IAEA)
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 24069048
- Subject category
- S54: ENVIRONMENTAL SCIENCES;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- CESIUM 137; COBALT 58; EXPERIMENTAL DATA; FLOW MODELS; PARTICULATES; RADIONUCLIDE MIGRATION; RIVERS; SEASONAL VARIATIONS; SEDIMENTS; STRONTIUM 85; THEORETICAL DATA; TRACER TECHNIQUES
- Descriptors DEC
- BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; CESIUM ISOTOPES; COBALT ISOTOPES; DATA; DAYS LIVING RADIOISOTOPES; ELECTRON CAPTURE RADIOISOTOPES; ENVIRONMENTAL TRANSPORT; EVEN-ODD NUCLEI; HOURS LIVING RADIOISOTOPES; INFORMATION; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTO; ISOMERIC TRANSITION ISOTOPES; ISOTOPE APPLICATIONS; ISOTOPES; MASS TRANSFER; MATHEMATICAL MODELS; NUCLEI; NUMERICAL DATA; ODD-EVEN NUCLEI; ODD-ODD NUCLEI; PARTICLES; RADIOISOTOPES; STRONTIUM ISOTOPES; SURFACE WATERS; VARIATIONS; YEARS LIVING RADIOISOTOPES