The role of organics on the migration of radionuclides in the geosphere
The present report summarizes factors of importance concerning the role of organics on the migration of radionuclides in the terrestrial environment. It describes the occurrence of organic compounds in the geosphere, taking both naturally occurring as well as artificially introduced compounds into account. The behaviour of organic compounds in the terrestrial environment is summarized with special emphasis on sorption and persistence in the environment. Both chemical and microbiological degradation reactions are discussed. The fundamentals of complex formation in relation to migration, and stability constants for the interactions between relevant metal ions and low molecular weight ligands as well as with humic- and fulvic acids are summarized. Based on theoretical considerations, the influence of organics on the migration behaviour of radionuclides in the terrestrial environment is evaluated. Additionally, the behaviour of two special elements ie. technetium and iodine, is discussed.
Bibliographic Reference: EUR 12024 EN (1989) FS, 76 pp., ECU 7.50
ISBN: ISBN 92-825-9334-7;CD-NA-
Record Number: 198910383 / Last updated on: 1994-12-01
Original language: en
Available languages: en