Status Report on Phase Identification in Hanford Tank Sludges.

Rapko, B. M. ; Lumetta, G. J.

Technical Information Center Oak Ridge Tennessee

关键词: Vitrification;    High-level radioactive wastes;    Leaching;    Sludges;    Underground storage;   

RP-ID  :  DE2001781072

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

The U.S. Department of Energy plans to vitrify Hanford's underground storage tank wastes. The vitrified wastes will be divided into low-activity and high-level fractions. There is an effort to reduce the quantity of high-activity wastes by removing nonradioactive components because of the high costs involved in treating high-level waste. Pretreatment options, such as caustic leaching, to selectively remove nonradioactive components are being investigated. The effectiveness of these proposed processes for removing nonradioactive components depends on the chemical phases in the tank sludges. This review summarizes the chemical phases identified to date in Hanford tank sludges.