Bulk Vitrification Performance Enhancement: Refractory Lining Protection Against Molten Salt Penetration

Hrma, Pavel R. ; Bagaasen, Larry M. ; Schweiger, Michael J. ; Evans, Michael B. ; Smith, Benjamin T. ; Arrigoni, Benjamin M. ; Kim, Dong-Sang ; Rodriguez, Carmen P. ; Yokuda, Satoru T. ; Matyas, Josef ; Buchmiller, William C. ; Gallegos, Autumn B. ; Fluegel, Alexander

Pacific Northwest National Laboratory (U.S.)

关键词: Electrodes;    Waste Forms;    Liners;    Wastes;    Molten Salts;   

DOI  :  10.2172/940754
RP-ID  :  PNNL-16773
RP-ID  :  AC05-76RL01830
RP-ID  :  940754

美国|英语

来源: UNT Digital Library

【 摘 要 】

Bulk vitrification (BV) is a process that heats a feed material that consists of glass-forming solids and dried low-activity waste (LAW) in a disposable refractory-lined metal box using electrical power supplied through carbon electrodes. The feed is heated to the point that the LAW decomposes and combines with the solids to generate a vitreous waste form. This study supports the BV design and operations by exploring various methods aimed at reducing the quantities of soluble Tc in the castable refractory block portion of the refractory lining, which limits the effectiveness of the final waste form.