Community Research and Development Information Service - CORDIS

Abstract

This is the final report of a programme of research which formed part of the CEC joint research project into radionuclide migration in the geosphere (MIRAGE). This study addressed the aspects of integral migration and source term. The integral migration experiment simulated, in the laboratory, the intrusion of water into a repository, the leaching of radionuclides from two intermediate level waste forms and the subsequent migration through the geosphere. The simulation consisted of a source of natural ground water which flowed over a sample of waste form, at a controlled redox potential, and then through backfill and geological material packed in columns. The two waste forms used here were cemented waste from the WAK plant at Karlsruhe in the Federal Republic of Germany and bitumenized intermediate concentrates from the Marcoule plant in France. The soluble fission products such as caesium were rapidly released from the cemented waste but the actinides, and technetium in the reduced state, were retained in the waste form. The release of all nuclides from the bitumenized waste was very low.

Additional information

Authors: EWART F T, AERE HARWELL, OXON (UK);HOWSE R M, AERE HARWELL, OXON (UK);SHARPE B M, AERE HARWELL, OXON (UK);SMITH A J, AERE HARWELL, OXON (UK);THOMASON H P, AERE HARWELL, OXON (UK);WILLIAMS S J, AERE HARWELL, OXON (UK);YOUNG M AERE HARWELL, OXON (UK), AERE HARWELL, OXON (UK)
Bibliographic Reference: EUR 10587 EN (1986) FS, 42 P., BFR 300, EUROFFICE, LUXEMBOURG, POB 1003
Availability: Can be ordered online
Record Number: 1989124137400 / Last updated on: 1987-01-01
Category: PUBLICATION
Available languages: en