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Contenuto archiviato il 2024-04-16

Assessment and proposal for activity limits for release of very low-level radioactive waste to landfills

Obiettivo

In the frame of studies dealing with exemption of particular streams from regulatory control, the project aims to establish acceptance criteria for municipal and industrial landfill for unconditional exemption. Correspondences between levels of exposure and levels of radioactivity will be established. From this work, it will be possible to derive specific and surface activity levels corresponding to acceptance criteria for landfill for the two types of exemption.
In the frame of studies dealing with exemption of particular streams form regulatory control, the project aims to establish acceptance criteria for municipal and industrial landfills for unconditional and conditional exemption. Correspondance between level of exposure and levels of radioactivity will also be established, from which, it will be possible to derive specific and surface activity levels corresponding to acceptance criteria for landfill for the two types of exemption.

Work has been carried out in 3 areas:
analysis of landfill disposal techniques of industrial and municipal waste, with particular attention being paid to the regulatory context and on working conditions encountered in the different installations, and evaluation of the waste streams; development of a radioprotection code (CERISE) to establish the relationship between exposure and radioactivity of waste development of a data bank for dose conversion factors, and evaluation of the exposures resulting from the water pathway, using the codes GEOLE (geosphere) and ABRICOT (biosphere); establishment of a correspondance between exposure and specific and surface activities of the wastes and the development of a proposal to deal with waste radioactivity acceptance levels for each type of landfill and for different dose criteria.
Work programme:

Three steps have defined:

Phase 1, F and B: Analysis of landfill disposal practices of industrial and municipal waste.
A particular attention is paid to the regulatory context and on working conditions encountered in the different installations.
Evaluation of the waste streams, at the level of some to hundred Bq.g{-1} for the most radiotoxic nuclides.

Phase 2, F: Development of a radioprotection code CERISE, to establish the relations between exposure and radioactivity of waste, including a data bank for dose conversion factors.
Evaluation of the exposures resulting of the water pathway using the code GEOLE (geosphere) and the code ABRICOT (biosphere).
Separate calculations will be pursued for workers and public.

Phase 3, F and B: Establishment of the correspondence between exposure and specific and surface activities of the wastes.
Proposal of levels of radioactivities for the waste acceptance in the different types of landfill and for different dose criteria.

Final report

Campo scientifico (EuroSciVoc)

CORDIS classifica i progetti con EuroSciVoc, una tassonomia multilingue dei campi scientifici, attraverso un processo semi-automatico basato su tecniche NLP. Cfr.: Il Vocabolario Scientifico Europeo.

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Coordinatore

COMMISSARIAT A L'ENERGIE ATOMIQUE
Contributo UE
Nessun dato
Indirizzo
Avenue du General Leclerc 60-68
92265 FONTENAY AUX ROSES
Francia

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