Crystallization in high level waste (HLW) glass melters: Savannah River Site operational experience

Conference · Fri Jun 12 04:00:00 EDT 2015

OSTI ID:1226219

Fox, Kevin M. ^[1]; Peeler, David K. ^[1]; Kruger, Albert A. ^[2]

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1. Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL)
2. USDOE Office of River Protection, Richland, WA (United States)

This paper provides a review of the scaled melter testing that was completed for design input to the Defense Waste Processing Facility (DWPF) melter. Testing with prototype melters provided the data to define the DWPF operating limits to avoid bulk (volume) crystallization in the un-agitated DWPF melter and provided the data to distinguish between spinels generated by refractory corrosion versus spinels that precipitated from the HLW glass melt pool. A review of the crystallization observed with the prototype melters and the full-scale DWPF melters (DWPF Melter 1 and DWPF Melter 2) is included. Examples of actual DWPF melter attainment with Melter 2 are given. The intent is to provide an overview of lessons learned, including some example data, that can be used to advance the development and implementation of an empirical model and operating limit for crystal accumulation for a waste treatment and immobilization plant.

• Research Organization: Savannah River Site (SRS), Aiken, SC (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC09-08SR22470
• OSTI ID: 1226219
• Report Number(s): SRNL-STI--2015-00298
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
42 ENGINEERING
BUILDUP
CERAMIC MELTERS
CORROSION
CRYSTALLIZATION
CRYSTALS
DESIGN
GLASS
HIGH-LEVEL RADIOACTIVE WASTES
LIMITING VALUES
OPERATION
PRECIPITATION
RADIOACTIVE WASTE PROCESSING
SAVANNAH RIVER PLANT
SPINELS
TESTING