The transfer of uranium from sediment to water along Jucar River, Spain |
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Authors: | M J Rodríguez-Alvarez F Sánchez |
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Institution: | (1) Instituto de Física Corpuscular, Avda. Dr. Moliner 50, Burjasot, 46100 Valencia, Spain |
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Abstract: | The effect of sediment size, pH, temperature and conductivity on the transfer of uranium from sediment to water has been studied.
The uranium concentration and the234U/238U,235U/238U activity ratios were measured in water, sediments and suspended matter sampled from Jucar River, using low level alpha-spectrometry.
Distribution factors were obtained from these measurements. A more detailed sampling was done in the neighbourhood of the
Cofrentes Nuclear Plant (Valencia, Spain). Total uranium activity,234U/238U activity ratio and distribution factors for234U and238U were found to vary with pH. Leaching and dilution, which depend on pH and salinity, are the probable mechanisms for these
changes. |
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Keywords: | |
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