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Abstract

In safety studies linked with disposal of radioactive wastes, the migration potential of radionuclides in the geosphere is currently described in terms of distribution coefficients (k-d values) between liquid and solid phases. The simplistic use in migration models of such coefficients, measured in laboratory by batch tests, is discussed and criticized. Other important retardation processes occurring in leached radionuclides transport must in fact be considered for the quantitative description of their mobility in the geosphere. Transport of colloidal particles and formation of anionic and/or neutral species by complexation with natural ligands are identified as important processes governing migration behaviour.

Additional information

Authors: AVOGADRO A, JRC ISPRA ESTAB. (ITALY);BIDOGLIO G JRC ISPRA ESTAB. (ITALY), JRC ISPRA ESTAB. (ITALY)
Bibliographic Reference: SCIENTIFIC SEMINAR ON THE APPLICATION OF DISTRIBUTION COEFFICIENTS TO RADIOLOGICAL ASSESSMENT MODELS, LOUVAIN- LA-NEUVE (BELGIUM), OCT. 7-11, 1985 WRITE TO CEC LUXEMBOURG, DG XIII/A2, POB 1907 MENTIONING PAPER E 32309 ORA
Availability: Can be ordered online
Record Number: 1989124048300 / Last updated on: 1987-01-01
Category: PUBLICATION
Available languages: en
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