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FP5

PADAMOT Palaeohydrogeological Data Analysis and Model Testing, Project Overview Report

Project ID: FIKW-CT-2001-00129
Funded under: FP5-EAECTP C

Abstract

International consensus confirms that placing radioactive wastes and spent nuclear fuel deep underground in a geological repository is the generally preferred option for their long-term management and disposal. This strategy provides a number of advantages compared to leaving it on or near the Earth's surface. These advantages come about because, for a well chosen site, the geosphere can provide:
- a physical barrier that can negate or buffer against the effects of surface dominated natural disruptive processes such as deep weathering, glaciation, river and marine erosion or flooding, asteroid/comet impact and earthquake shaking etc.
- long and slow groundwater return pathways from the facility to the biosphere along which retardation, dilution and dispersion processes may operate to reduce radionuclide concentration in the groundwater.
- a stable, and benign geochemical environment to maximise the longevity of the engineered barriers such as the waste containers and backfill in the facility.
- a natural radiation shield around the wastes.
- a mechanically stable environment in which the facility can be constructed and will afterwards be protected.
- an environment which reduces the likelihood of the repository being disturbed by inadvertent human intrusion such as land use changes, construction projects, drilling, quarrying and mining etc.
- protection against the effects of deliberate human activities such as vandalism, terrorism and war etc.

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Record Number: 8214 / Last updated on: 2007-01-05
Category: PROJ
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