DURING THE LAST FEW YEARS, REACTOR WASTE MANAGEMENT PRACTICES HAVE TAKEN ADVANTAGE OF MANY IMPROVEMENTS AS FAR AS PROCESSES, ORGANIZATION AND SAFETY ARE CONCERNED. WITHIN THE FRAMEWORK OF THE 3RD EC WASTE MANAGEMENT PROGRAMME, GNS AND FRAMATOME ARE TAKING PART IN THE PRESENT JOINT STUDY THE PURPOSE OF WHICH IS TO CHARACTERIZE VARIOUS OVERALL MANAGEMENT SCHEMES RESULTING FROM THESE NEW DEVELOPMENTS. THE COMPLETE DESCRIPTION AND ANALYSIS OF EACH SCHEME WILL CONSIST IN EVALUATING ITS INDUSTRIAL FEASIBILITY , COSTS AND RADIOLOGICAL IMPACT ON WORKERS AND PUBLIC. THE FOLLOWING SENSITIVITY STUDIES WILL POINT OUT THE IMPACT OF SOME IMPORTANT PARAMETERS ON PROCESSED WASTE PRODUCT CHARACTERISTICS AND QUANTITIES, COSTS AND RADIOLOGICAL IMPACT.
THE ASSESSMENT OF THE DIFFERENT EUROPEAN MANAGEMENT ALTERNATIVES WILL MAKE UP BASIC DATA FOR THE STUDY. EACH NATIONAL SCHEMES WILL BE APPLIED TO A HYPOTHETICAL SITE WITH 20 GWE CAPACITY CONSISTING OF LIGHT-WATER COOLED REACTORS (PWR'S AND BWR'S) AND TO LOW AND INTERMEDIATE RADIOACTIVE WASTE GENERATED DURING NORMAL OPERATION. AFTER HAVING ANALYSED EACH BASIC CASE, SENSITIVITY ANALYSIS WILL BE CARRIED OUT VARYING THE MOST IMPORTANT PARAMETERS SUCH AS DISPOSAL CRITERIA, WASTE CHARACTERISTICS, TREATMENT METHODS AND DISCHARGE LIMITS AFFECTING BOTH COST AND RADIOLOGICAL IMPACT.
GNS AND FRAMATOME HAVE TAKEN CHARGE OF PROVIDING THE ASSESSMENT OF GERMAN AND ITALIAN APPROACHES. BOTH OF THESE MANAGEMENT SCHEMES WILL COMPRISE WASTE INVENTORIES, REGULATIONS, TREATMENT, CONDITIONING, PACKAGING, INTERIM STORAGE, TRANSPORT AND FINAL DISPOSAL OPERATIONS, COST EVALUATIONS AND RADIOLOGICAL IMPACT ON WORKERS AND PUBLIC. SENSITIVITY STUDIES WILL THEN BE PERFORMED.
Various overall management schemes resulting from new developments in reactor waste management practices have been characterized, and an analysis carried out to evaluate industrial feasibility, relevant costs and radiological impact on workers and public.
The assessment of the different European management alternatives made up basic data for the study. Each national scheme was applied to a hypothetical site with 20 GWe capacity consisting of light water cooled reactors (pressurized water reactors and boiling water reactors) and to low and intermediate radiactive wastes generated during normal operation. After analysing each basic case, sensitivity studies were carried out, varying the most important parameters such as waste characteristics, treatment methods, discharge limits and disposal criteria having both cost and radiological impact.
The evaluation of the management schemes comprised waste inventories, treatment, conditioning, packaging, interim storage, transport and final disposal operations, cost and radiological impact on workers and public.
1. DEFINITION OF TYPICAL PRIMARY WASTE INVENTORIES RESULTING FROM NORMAL OPERATION OF PWR'S AND BWR'S.
2. DEFINITION OF DISCHARGE LIMITS, WASTE ACCEPTANCE CRITERIA AND TRANSPORT REGULATIONS.
3. DRAWING UP OF BASIC MANAGEMENT ROUTES TAKING INTO ACCOUNT TREATMENT AND CONDITIONING VARIANTS.
4. SENSITIVITY STUDIES ON EACH BASIC MANAGEMENT ROUTE.
5. ASSESSMENT OF THE RELATED OCCUPATIONAL EXPOSURE.
6. ASSESSMENT OF THE RELATED RADIOLOGICAL IMPACT ON THE PUBLIC (SHORT AND LONG TERM).
IN THIS REGARD, FRAMATOME/GNS WILL BE PARTLY RESPONSIBLE FOR TASKS 1., 2. AND 6. AND WHOLLY RESPONSIBLE FOR TASKS 3., 4. AND 5. FOR TWO BASIC MANAGEMENT SCHEMES RELYING ON THE GERMAN AND ITALIAN PHILISOPHY AND PRACTICE.
Funding SchemeCSC - Cost-sharing contracts