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OCR for page R7
AN ASSESSMENT OF CONTINUED R&D INTO AN ELECTROMETALLURGICAL APPROACH FOR TREATING DOE SPENT NUCLEAR FUEL CONTENTS EXECUTIVE SUMMARY ix Introduction ix Argonne National Laboratory's Electrometallurgical Technology x The DOE Spent Fuel Inventory xi Alternative Technologies xii Disposal of Electrometallurgical Effluent Streams xiii Effect of Broader DOE-Wide Issues on Planning for Electrometallurgical R&D xiii Findings, Conclusions, and Recommendations xiv 1 INTRODUCTION 1 Committee Task 1 Committee Activities 2 Interim Report 3 2 ARGONNE NATIONAL LABORATORY'S ELECTROMETALLURGICAL TECHNOLOGY 5 Description 5 Head-End Treatment 5 Electrorefining 7 Treatment of Electrorefining Effluents 10 Present Status and Future Plans 11 Head-End Treatment 11 Electrorefining 12 Treatment of Electrorefining Effluents 12 3 THE DOE SPENT FUEL INVENTORY 13 Categorizations of Spent Nuclear Fuel 14 Historical Grouping 14 INEL Grouping 14 EIS Grouping 15 Treatment-Oriented Grouping 16 Treatment, Storage, and Disposition of Spent Nuclear Fuel 16 Possible Candidate Fuels for Electrometallurgical Processing 18 Alternative Technologies for Treating DOE Spent Nuclear Fuel 19 Direct Disposal 19 Purex 19
OCR for page R8
AN ASSESSMENT OF CONTINUED R&D INTO AN ELECTROMETALLURGICAL APPROACH FOR TREATING DOE SPENT NUCLEAR FUEL 4 DISPOSAL OF ELECTROMETALLURGICAL EFFLUENT STREAMS 23 Uranium Metal Fraction 23 TRU Metal Fraction 24 Zeolite Waste Form 25 Cladding-Metal Waste Form 25 5 EFFECT OF BROADER DOE-WIDE ISSUES ON PLANNING FOR ELECTROMETALLURGICAL R&D 27 Need for a Broad Comprehensive Strategy 27 Need for Definition of Products and Technology Use 28 Schedule Considerations for Disposal of N-Reactor Fuel 29 Waste Form Qualification Considerations for the Electrometallurgical Process 30 Proliferation Resistance Considerations 30 Influences of the EBR-II Demonstration on Electrometallurgical Process Development 31 Technology Development for DOE Spent Nuclear Fuel 31 6 FINDINGS, CONCLUSIONS, AND RECOMMENDATIONS 33 Criteria for Successful Process Demonstration During the Treatment of EBR-II SNF 34 Advantages and Disadvantages of the Electrometallurgical Process 36 Advantages 37 Disdvantages 37 Conclusions and Overall Recommendation 38 APPENDIXES A Interim Report 41 B Committee Meetings 55 C Abbreviations Used in This Report 61