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Ion Recognition Approach to Volume Reduction of Alkaline tank Waste by Separation and Recycle of Sodium Hydroxide and Sodium Nitrate.

DE2004825066

Publication Date	2004
Personal Author	Moyer, B. A.
Page Count	46
Abstract	This research was intended to provide the scientific foundation upon which the feasibility of liquid-liquid extraction chemistry for bulk reduction of the volume of high-activity tank waste can be evaluated. Primary focus has been on sodium hydroxide separation, with potential Hanford application. Value in sodium hydroxide separation can potentially be found in alternative flowsheets for treatment and disposal of low-activity salt waste. Additional value can be expected in recycle of sodium hydroxide for use in waste retrieval and sludge washing, whereupon additions of fresh sodium hydroxide to the waste can be avoided. Potential savings are large both because of the huge cost of vitrification of the low-activity waste stream and because volume reduction of high-activity wastes could obviate construction of costly new tanks. Toward these ends, the conceptual development begun in the original proposal was extended with the formulation of eight fundamental approaches that could be undertaken for extraction of sodium hydroxide.
Keywords	Nuclear facilities Radioactive waste management Bulk reduction Construction Chemistry Flowsheets Sludges Sodium hydroxides Solvent extraction Tanks Vitrification Waste retrieval Washing High-activity tank waste Liquid-liquid extaction chemistry
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Oak Ridge National Lab., TN.; Department of Energy, Washington, DC.; University of North Texas, Denton. Dept. of Chemistry.
Supplemental Notes	Prepared in cooperation with University of North Texas, Denton. Dept. of Chemistry. Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200507

Ion Recognition Approach to Volume Reduction of Alkaline tank Waste by Separation and Recycle of Sodium Hydroxide and Sodium Nitrate.

Ion Recognition Approach to Volume Reduction of Alkaline tank Waste by Separation and Recycle of Sodium Hydroxide and Sodium Nitrate.
DE2004825066

Publication Date	2004
Personal Author	Moyer, B. A.
Page Count	46
Abstract	This research was intended to provide the scientific foundation upon which the feasibility of liquid-liquid extraction chemistry for bulk reduction of the volume of high-activity tank waste can be evaluated. Primary focus has been on sodium hydroxide separation, with potential Hanford application. Value in sodium hydroxide separation can potentially be found in alternative flowsheets for treatment and disposal of low-activity salt waste. Additional value can be expected in recycle of sodium hydroxide for use in waste retrieval and sludge washing, whereupon additions of fresh sodium hydroxide to the waste can be avoided. Potential savings are large both because of the huge cost of vitrification of the low-activity waste stream and because volume reduction of high-activity wastes could obviate construction of costly new tanks. Toward these ends, the conceptual development begun in the original proposal was extended with the formulation of eight fundamental approaches that could be undertaken for extraction of sodium hydroxide.
Keywords	Nuclear facilities Radioactive waste management Bulk reduction Construction Chemistry Flowsheets Sludges Sodium hydroxides Solvent extraction Tanks Vitrification Waste retrieval Washing High-activity tank waste Liquid-liquid extaction chemistry
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Oak Ridge National Lab., TN.; Department of Energy, Washington, DC.; University of North Texas, Denton. Dept. of Chemistry.
Supplemental Notes	Prepared in cooperation with University of North Texas, Denton. Dept. of Chemistry. Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200507