MELT RATE FURNACE TESTING FOR SLUDGE BATCH 5 FRIT OPTIMIZATION | |
Miller, D ; Fox, K ; Pickenheim, B ; Stone, M | |
关键词: AR FACILITIES; FURNACES; PERFORMANCE; RADIOACTIVE WASTE PROCESSING; SLUDGES; WASTE FORMS; MELTING; GLASS; MATERIALS TESTING; BORON; CONCENTRATION RATIO; | |
DOI : 10.2172/940390 RP-ID : SRNS-STI-2008-00092 PID : OSTI ID: 940390 Others : TRN: US0807176 |
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学科分类:核能源与工程 | |
美国|英语 | |
来源: SciTech Connect | |
【 摘 要 】
Savannah River National Laboratory (SRNL) was requested to provide the Defense Waste Processing Facility (DWPF) with a frit composition for Sludge Batch 5 (SB5) to optimize processing. A series of experiments were designed for testing in the Melt Rate Furnace (MRF). This dry fed tool can be used to quickly determine relative melt rates for a large number of candidate frit compositions and lead to a selection for further testing. Simulated Sludge Receipt and Adjustment Tank (SRAT) product was made according to the most recent SB5 sludge projections and a series of tests were conducted with frits that covered a range of boron and alkali ratios. Several frits with relatively large projected operating windows indicated melt rates that would not severely impact production. As seen with previous MRF testing, increasing the boron concentration had positive impacts on melt rate on the SB5 system. However, there appears to be maximum values for both boron and sodium above which the there is a negative effect on melt rate. Based on these data and compositional trends, Frit 418 and a specially designed frit (Frit 550) have been selected for additional melt rate testing. Frit 418 and Frit 550 will be run in the Slurry Fed Melt Rate Furnace (SMRF), which is capable of distinguishing rheological properties not detected by the MRF. Frit 418 will be used initially for SB5 processing in DWPF (given its robustness to compositional uncertainty). The Frit 418-SB5 system will provide a baseline from which potential melt rate advantages of Frit 550 can be gauged. The data from SMRF testing will be used to determine whether Frit 550 should be recommended for implementation in DWPF.
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