Research and Development on a Salt Processing Alternative for High-level Waste at the Savannah River Site -- Copyright -- PREFACE -- LIST OF REVIEWERS -- Contents -- EXECUTIVE SUMMARY -- RESPONSE TO CHARGE 2: EVALUATE THE PROGRESS AND RESULTS OF THE RESEARCH AND DEVELOPMENT WORK THAT IS BEING UNDERTAKEN ON… -- CHARGE 3: ASSESS WHETHER THE TECHNICAL UNCERTAINTIES HAVE BEEN SUFFICIENTLY RESOLVED TO PROCEED WITH DOWNSIZING THE LIST OF… -- INTRODUCTION -- PROGRESS AND RESULTS OF DOE'S RESEARCH AND DEVELOPMENT PROGRAM -- SMALL TANK TETRAPHENYLBORATE PRECIPITATION -- 2000 NRC Committee Recommendations -- Current Research and Development Results -- Mechanism of TPB Decomposition -- Waste Foaming -- Real Waste Tests -- Committee Conclusions on the STTP Process -- CRYSTALLINE SILICOTITANATE ION EXCHANGE -- 2000 NRC Committee Recommendations -- Current Research and Development Results -- CST Performance and CST Pretreatment Technologies -- Chemical and Thermal Stability of Cesium-Loaded CST -- CST Process Columns -- Effect of Additional Titanium from CST on the DWPF -- Discussion -- Committee Conclusions on the CST Process -- CAUSTIC SIDE SOLVENT EXTRACTION -- 2000 NRC Committee Recommendations -- Current Research and Development Results -- CSSX Proof of Concept -- Solvent Chemical Stability -- Solvent Radiological Stability -- Solvent Preparation and Commercialization -- Discussion -- Committee Conclusions on the CSSX Process -- ACTINIDE AND STRONTIUM REMOVAL -- 2000 NRC Committee Recommendations -- Current Research and Development Results -- Actinide and Strontium Removal Requirements -- Solid-Liquid Separation Studies -- Alternatives to MST for Actinide and Strontium Removal -- Committee Comments on the MST Process -- REFERENCES -- APPENDIX A Letters of Request for this Study -- APPENDIX B Interim Report -- THE NATIONAL ACADEMIES.

COMMITTEE ON RADIONULIDE SEPARATION PROCESSES FOR HIGH-LEVEL WASTE AT THE SAVANNAH RIVER SITE -- Staff -- BOARD ON RADIOACTIVE WASTE MANAGEMENT -- Staff -- BOARD ON CHEMICAL SCIENCES AND TECHNOLOGY -- Staff -- ACKNOWLEDGEMENT OF REVIEWERS -- CONTENTS -- SUMMARY -- INTRODUCTION -- BACKGROUND -- DOE SELECTION CRITERIA AND GOALS -- COMMENTS ON CRITERIA -- FINDINGS AND RECOMMENDATIONS -- REFERENCES CITED -- APPENDIX A BIOGRAPHICAL SKETCHES OF COMMITTEE MEMBERS -- APPENDIX B LETTERS OF REQUEST FOR THIS STUDY -- APPENDIX C HIGH-LEVEL WASTE AT THE SAVANNAH RIVER SITE -- TANK WASTE PROCESSING -- Waste Concentration and Storage -- Radionuclide Immobilization -- Extended Sludge Processing -- Salt Processing -- Salt Disposal. -- CESIUM REMOVAL PROBLEM -- Strontium/Actinide Removal by MST -- Tetraphenylborate Precipitation Process -- Crystalline Silicotitanate Ion Exchange -- Caustic Side Solvent Extraction -- Direct Disposal in Grout -- APPENDIX C Biographical Sketches of Committee Members -- APPENDIX D Information-Gathering Meetings -- PRESENTATIONS GIVENT DURING SECOND COMMITTEE MEETING -- PRESENTATIONS GIVEN DURING THE THIRD COMMITTEE MEETING -- APPENDIX E Acronyms and Abbreviations.