Title

Iron Phosphate Glasses for Vitrifying Doe High Priority Nuclear Wastes

Abstract

Iron phosphate glasses have been studied as an alternative glass for vitrifying Department of Energy (DOE) high priority wastes. The high priority wastes were the Low Activity Waste (LAW) and the High Level Waste (HLW) with high chrome content stored at Hanford, WA and the Sodium Bearing Waste (SBW) stored at the Idaho National Engineering and Environmental Laboratory (INEEL). These wastes were recommended by Tanks Focus Area because their high sodium, high sulfate, high phosphate, and high chrome content (Table 1) can seriously reduce the maximum waste loading in borosilicate glasses1. All three of these high priority wastes have been successfully vitrified, at high waste loadings, in iron phosphate glasses which have an excellent chemical durability. The research results and identified advantages for vitrifying these three wastes in iron phosphate glasses are summarized below.

Meeting Name

227th American Chemical Society Meeting (2004: Mar. 28-Apr. 1, Anaheim, CA)

Department(s)

Mining and Nuclear Engineering

Second Department

Materials Science and Engineering

Sponsor(s)

United States. Department of Energy

Keywords and Phrases

Bearings; Borosilicate Glass; Containers; Furnaces; Glass; Hydration; Iron Phosphates; Melting; Oxides; Radioactive Wastes; Sodium; Sulfates; Tanks; Waste Forms

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2004 United States. Department of Energy, All rights reserved.

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