FULL-SCALE COLD CRUCIBLE TEST ON VITRIFICATION OF SAVANNAH RIVER SITE SB4 HLW SURROGATE

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The full-scale cold crucible test on vitrification of sludge batch 4 (SB4) Savannah River Site HLW surrogate using a 418 mm inner diameter stainless steel crucible was carried-out for 66 hrs. Commercially available Frit 503-R4 (8 wt.% Li{sub 2}O, 16 wt.% B{sub 2}O{sub 3}, 76 wt.% SiO{sub 2}) was used as a glass forming additive at a calcine to frit ratio of 1:1 (50 wt.% calcine, 50 wt.% frit). Two portions of slurry prepared from frit and mixture of chemicals simulating waste in amount of {approx}750 kg and from frit and waste surrogate prepared by the SRT-MST-2007-00070 procedure in amount ... continued below

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Marra, J August 5, 2008.

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The full-scale cold crucible test on vitrification of sludge batch 4 (SB4) Savannah River Site HLW surrogate using a 418 mm inner diameter stainless steel crucible was carried-out for 66 hrs. Commercially available Frit 503-R4 (8 wt.% Li{sub 2}O, 16 wt.% B{sub 2}O{sub 3}, 76 wt.% SiO{sub 2}) was used as a glass forming additive at a calcine to frit ratio of 1:1 (50 wt.% calcine, 50 wt.% frit). Two portions of slurry prepared from frit and mixture of chemicals simulating waste in amount of {approx}750 kg and from frit and waste surrogate prepared by the SRT-MST-2007-00070 procedure in amount of {approx}1,300 kg with water content of {approx}27 and {approx}50 wt.%, respectively, was processed and {approx}875 kg of the vitrified product in total ({approx}415 + 460 kg) was obtained. Average parameters were as follows: vibration power - 121.6 to 134.1 kW, feed rate (capacity) - 25.1 to 39.8 kg/hr, glass pour rate (productivity) - 14.0 kg/hr specific energy expenses for feed processing - 4.8 to 3.4 kW x hr/kg, specific energy expenses for glass production (melting ratio) - 8.7 to 9.6 kW x hr/kg, specific glass productivity - 2453 kg/(m{sup 2} x d). The product was composed of major vitreous and minor spinel structure phases. No nepheline phase was found. Average degree of crystallinity was estimated to be {approx}12 vol.%. Cesium was found to be the most volatile component (up to {approx}60 wt.% of total). Lithium, sodium and boron are less volatile. Other major feed constituents (Al, Si, Mg, Fe, Mn) were not volatile but their carry-over with gas-vapor flow occurred.

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  • MS and T 2008

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  • Report No.: SRNS-STI-2008-00017
  • Grant Number: DE-AC09-08SR22470
  • Office of Scientific & Technical Information Report Number: 936858
  • Archival Resource Key: ark:/67531/metadc893249

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  • August 5, 2008

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  • Sept. 27, 2016, 1:39 a.m.

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  • Dec. 9, 2016, 11:32 p.m.

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Marra, J. FULL-SCALE COLD CRUCIBLE TEST ON VITRIFICATION OF SAVANNAH RIVER SITE SB4 HLW SURROGATE, article, August 5, 2008; [Aiken, South Carolina]. (digital.library.unt.edu/ark:/67531/metadc893249/: accessed September 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.