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Title: Radioactive waste material disposal

The invention is a process for direct conversion of solid radioactive waste, particularly spent nuclear fuel and its cladding, if any, into a solidified waste glass. A sacrificial metal oxide, dissolved in a glass bath, is used to oxidize elemental metal and any carbon values present in the waste as they are fed to the bath. Two different modes of operation are possible, depending on the sacrificial metal oxide employed. In the first mode, a regenerable sacrificial oxide, e.g., PbO, is employed, while the second mode features use of disposable oxides such as ferric oxide.
Authors:
 [1] ;  [2] ;  [3]
  1. (155 Newport Dr., Oak Ridge, TN 37830)
  2. (106 Cooper Cir., Oak Ridge, TN 37830)
  3. (321 Dominion Cir., Knoxville, TN 37922)
Publication Date:
OSTI Identifier:
870130
Report Number(s):
US 5461185
DOE Contract Number:
AC05-84OR21400
Resource Type:
Patent
Research Org:
LOCKHEED MARTIN ENRGY SYST INC
Country of Publication:
United States
Language:
English
Subject:
radioactive; waste; material; disposal; process; direct; conversion; solid; radioactive; waste; particularly; spent; nuclear; fuel; cladding; solidified; waste; glass; sacrificial; metal; oxide; dissolved; glass; bath; oxidize; elemental; metal; carbon; values; waste; fed; bath; modes; operation; depending; sacrificial; metal; oxide; employed; mode; regenerable; sacrificial; oxide; pbo; employed; mode; features; disposable; oxides; ferric; oxide; sacrificial metal; sacrificial metal; waste material; nuclear fuel; metal oxide; metal oxide; spent nuclear; radioactive waste; radioactive waste; elemental metal; waste glass; sacrificial oxide; solidified waste; solid radioactive; ferric oxide; direct conversion /588/976/