ALTERNATIVES FOR HIGH-LEVEL WASTE SALT PROCESSING AT THE SAVANNAH RIVER SITE -- Copyright -- Acknowledgements -- List of Report Reviewers -- Contents -- Summary -- 1 Introduction -- BACKGROUND ON THE HIGH-LEVEL WASTE PROGRAM AT SAVANNAH RIVER -- Waste Concentration and Storage -- Radionuclide Immobilization -- Extended Sludge Processing -- Salt Processing -- Salt Disposal -- ORIGIN OF THE CESIUM REMOVAL PROBLEM -- IDENTIFICATION OF PROCESSES FOR CESIUM REMOVAL -- Strontium/Actinide Removal by MST -- Tetraphenylborate Precipitation Process -- Crystalline Silicotitanate Ion Exchange -- Caustic Side Solvent Extraction -- Direct Disposal in Grout -- RECOMMENDATIONS FROM THE COMMITTEE'S INTERIM REPORT -- GENERIC ISSUES -- 2 Screening Procedure -- BACKGROUND -- Literature and Patent Search -- Initial Selection of Process Alternatives (Phase I) -- Reduction of Process Alternatives to Four (Phase II) -- Selection of Recommended Process Alternative (Phases III and IV) -- ANALYSIS AND FINDINGS -- Literature and Patent Search -- Initial Selection of Process Alternatives (Phase I) -- Reduction of Process Alternatives to Four (Phase II) -- Selection of Recommended Process Alternative (Phases III and IV) -- GENERAL CONCLUSIONS -- RECOMMENDATIONS -- 3 Strontium and Actinide Removal -- BASELINE APPROACH -- STRONTIUM AND ACTINIDE REMOVAL -- MST SOLIDS REMOVAL -- GLASS COMPATIBILITY -- MST AVAILABILITY -- ALTERNATE PROCESSES -- R&D ACTIVITIES TO RESOLVE UNCERTAINTIES -- ANALYSIS -- RECOMMENDATIONS -- 4 Tetraphenylborate: In-Tank Precipitation and Small-Tank Precipitation Options -- In-Tank Precipitation Process -- Small-Tank TPB Precipitation -- ANALYSIS -- FINDINGS AND CONCLUSIONS -- RECOMMENDATIONS -- 5 Crystalline Silicotitanate Ion Exchange -- PHYSICAL, CHEMICAL, AND MINERALOGICAL CHARACTERISTICS OF CST -- ISSUES TO BE ADDRESSED FOR CST -- ANALYSIS.

FINDINGS AND CONCLUSIONS -- RECOMMENDATIONS -- 6 Caustic Side Solvent-Extraction Process -- DESCRIPTION OF THE PROCESS -- ANALYSIS, FINDINGS AND CONCLUSIONS -- RECOMMENDATIONS -- 7 Direct Grout Option -- PROCESS DETAILS -- OBSTACLES TO SUCCESSFUL IMPLEMENTATION -- ANALYSIS -- FINDINGS AND CONCLUSIONS -- RECOMMENDATIONS -- 8 Barriers to Implementation of HLW Salt Processing Options -- SYSTEMS INTEGRATION -- PROGRAM MANAGEMENT -- References -- Appendix A Biographical Sketches of Committee Members -- Appendix B Interim Report -- ATTACHMENT A -- NRC Staff -- ATTACHMENT C -- HIGH-LEVEL WASTE SYSTEM AT SAVANNAH RIVER SITE -- SALT PROCESSING OPTIONS -- Appendix C Information-Gathering Meetings -- PRESENTATIONS GIVEN DURING FIRST COMMITTEE MEETING -- PRESENTATIONS GIVEN DURING SECOND COMMITTEE MEETING -- Appendix D Incidental Waste -- ROLE OF THE U.S. NUCLEAR REGULATORY COMMISSION IN INCIDENTAL WASTE DETERMINATIONS -- DETERMINATION OF HIGH-LEVEL WASTE SUPERNATES ASINCIDENTAL TO REPROCESSING -- REFERENCES CITED -- Appendix E Long-Term Safety of the Direct Grout Option -- REFERENCES CITED -- Appendix F Defense Nuclear Facilities Safety Board Recommendation 96-1 to the Secretary of Energy -- Appendix G Acronyms and Abbreviations.