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Ivanovich, M.; Duerden, P.; Payne, T.
Department of the Environment, London (UK); UKAEA Harwell Lab. (UK). Nuclear Physics and Instrumentation Div1988
Department of the Environment, London (UK); UKAEA Harwell Lab. (UK). Nuclear Physics and Instrumentation Div1988
AbstractAbstract
[en] In order to model realistically the subsurface transport of radionuclides it is necessary to fully characterise natural colloids in field samples. In this work samples of groundwaters, pure aqueous phase, particulate (> 1 μm particle diameter) and colloid phases were collected from five boreholes at the Koongarra uranium deposit, Australia, using an ultrafiltration system. These have been analysed in terms of their physical, chemical and actinide compositions, in order to determine the radionuclide fractions associated with each phase, as well as the colloid sizes and concentrations. The radiometric data are interpreted in terms of the isotopic equilibrium between the pure aqueous and colloid phases and the mineralogical/geochemical controls on the colloid radionuclide uptake. (author)
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Jan 1988; 127 p; AERE-R--12975; CONTRACT PECD-7/9/373
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Report
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ACTINIDE NUCLEI, ALPHA DECAY RADIOISOTOPES, BETA DECAY RADIOISOTOPES, BETA-MINUS DECAY RADIOISOTOPES, DAYS LIVING RADIOISOTOPES, DISPERSIONS, ENVIRONMENTAL TRANSPORT, EVEN-EVEN NUCLEI, GEOLOGIC DEPOSITS, HEAVY NUCLEI, HYDROGEN COMPOUNDS, ISOTOPES, MANAGEMENT, MASS TRANSFER, NUCLEI, OXYGEN COMPOUNDS, POLAR SOLVENTS, RADIOISOTOPES, SIZE, SOLVENTS, THORIUM ISOTOPES, URANIUM DEPOSITS, URANIUM ISOTOPES, WASTE DISPOSAL, WASTE MANAGEMENT, WATER, YEARS LIVING RADIOISOTOPES
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