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Title: Challenges with vitrification of Hanford High-Level Waste (HLW) to borosilicate glass – An overview

Journal Article · · Journal of Non-Crystalline Solids. X
 [1];  [2];  [3];  [4]
  1. Rutgers, The State Univ. of New Jersey, Piscataway, NJ (United States)
  2. Washington State Univ., Pullman, WA (United States)
  3. Joint Workplace of the Univ. of Chemistry and Technology Prague (Czechia); The Inst. of Rock Structure and Mechanics of the ASCR, Prague (Czechia)
  4. U.S. Dept. of Energy, Richland, WA (United States)

The Hanford site in Washington State houses ~56 million gallons of radioactive wastes stored in 177 underground tanks. The waste must be immobilized and permanently stored, and the plan is to separate the tank wastes into low activity waste (LAW) and high-level waste (HLW) streams. The U.S. Department of Energy is building a Waste Treatment and Immobilization Plant at Hanford site to separately vitrify these two waste streams in borosilicate glass using Joule-heated ceramic melters (JHCM). Although the process of nuclear waste vitrification seems to be well established, in practicality, it is faced with complex problems starting from the design of glass compositions, to processing in melters and long-term performance of the final vitrified waste forms. The article presents an overview of our current understanding of critical challenges related to the development and performance of HLW glasses.

Research Organization:
Rutgers Univ., New Brunswick, NJ (United States)
Sponsoring Organization:
USDOE Office of Environmental Management (EM); USDOE Office of Nuclear Energy (NE), Nuclear Energy University Program (NEUP)
Grant/Contract Number:
NE0008597; 89304017C-EM000001; EM-0003207; 89304018CEM000006
OSTI ID:
1749865
Journal Information:
Journal of Non-Crystalline Solids. X, Vol. 4; ISSN 2590-1591
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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