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Abstracts
Centre de l’Aube that took over Centre de la Manche, and Morvilliers for very low level wastes. Both facilities
currently accommodate the major part of the volume of radioactive wastes that are generated in France. However
disposal facilities have to be considered as rare resources. Then new waste management options are being investigated as
the disposal of large components or recycling metallic wastes within the nuclear industry.
2) 40226 – The Ethics of the Management of Low and Intermediate Radioactive Wastes Generated by
Cernavoda NPP, a Challenge for the Romanian Specialists
Gheorghe Barariu, Subsidiary of Technology and Engineering for Nuclear Objectives (Romania)
In Romania there was an extensive interest on treatment of radioactive wastes generated by nuclear technology used
in industrial and research field. Still the existence of NPP Cernavoda and the provision for a new nuclear power plant
impose the existence of the disposal capacities for future radioactive wastes that will be further generated by operation
and decommissioning of new units. The key aspects of the radioactive wastes management at the Romanian Cernavoda
NPP equipped with CANDU 600 reactors result from missing of a Radioactive Waste Treatment Plant. The Strategy for
radioactive waste management was elaborated by the former National Agency for Radioactive Waste (ANDRAD), the
jurisdictional authority for final disposal and the coordination of nuclear spent fuel and radioactive waste management
(Order 844/2004), with attributions established by Governmental Decision (GO) 31/2006. The Strategy specifies the
commissioning of the Saligny L/IL Radwaste Repository near Cernavoda NPP, in 2014. The new Agency AN&DR,
Nuclear Agency and for Radioactive Waste which was appointed in 2010, probable will follows the same Strategy. A lot
of constraints, including limited available surface and bearing capacity on site of the Saligny Repository near Cernavoda
NPP limits the possibilities for selecting of the technologies for radioactive wastes treatment. For the new NPP not sised
and located yet wil be provided a separate strategy. Based on the input data the main constraints for the new repository
design were identified: Cernavoda NPP specific waste characterization is not finalized, the wastes are not properly
conditioned for the final disposal, environmental constraints due to characteristics of the Saligny Repository, regulatory
constraints, public acceptance constraints, constraints related Utility concept for treatment of radioactive waste,
uncertenties related the New Governamental Agency AN&DR. For every constraint mentioned above, suitable measures
will be taken to reduce the uncertainties. The most important technological dilema is related to selection betwen
technogies that implies impact on present generation ( incineration, radwaste transfer from ss drums to cs drums and ss
drums supercompaction ), and technologies that confined the tritium and C-14 in the Repository with impact for next
generations. The paper will present the implicative of this selection on the future Radioactive Waste Treatment Plant.
3) 40149 – CEA's radioactive waste and unused fuel inventory - Marcoule site example
Jean-Guy Nokhamzon, Marc Butez, Ddaniel Fulleringer, CEA (France)
In the field of clean up and decommissioning of nuclear facilities the knowledge of the radioactive waste and
unused fuel inventories is crucial. For CEA (French Commission in charge of Atomic Energy and Alternative Energies),
this knowledge is a key issue : in the short term for the flows stream lining as well as in the middle and long terms for
investment strategy in nuclear support facilities.
These needs appear in a larger extent at the national scale in France, with the enforcement of two laws promulgated
in 2006 dealing with radioactive waste and with transparency in Nuclear Safety.
More generally, a precise and reliable knowledge of inventory and flow production forecast is indispensable to give
pertinent answers to the questions related to waste valuation. Thus, all these subjects are also worked out with our
authorities in charge of financial aspects because there are essential for the cost control of clean-up and decommissioning
projects CEA has to manage. In effect, in these projects, waste management represents a great part of cost and risk.
For all these reasons CEA has carried out an important work to collect all his waste and unsued fuel inventories. For
this reason we have developed a new "INFLUVAL" data base which will be combined with a softare featured with
coherency checking and analysis modules. Indeed, we must guarantee uniqueness and relevance of data coming from
decommissioning projects and facility managers.
As a consequence, in 2009 CEA Clean-up and Decommissioning Division has decided to perform, , a
comprehensive inventory of waste and unused fuel with the following objectives :
- Consolidation of stock and expected flows,
- Evaluation of reference costs
- Help to dimensioning and investment decision for facilities programs ( storage, waste conditioning facility,…)
- Validation of waste cost ratio.
In this paper we will take Marcoule as a more precise example. On this CEA center, heavy operations of clean-up
and decommissioning are carried out on the first French reprocessing plants –UP1-, and the related workshops.
Theses installations have been shut down in 1996. Since this date the main operations were focussed on definitive
shutdown and dismantling of equipments which were to be realized in priority in the goal of reducing radiological
activity and operating costs.
Thus, the consolidation of the inventory data is essential to valid a scenario and then to design facilities for the
following stages of the UP1 project.
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