Preliminary Systems Design Study assessment report

Mayberry, J.L.; Quapp, W.J.; Feizollahi, F.; Signore, J.C. Del

doi:10.2172/6276581

Cited by 4 publications

(4 citation statements)

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“…This section analyzes potential improvements to process equipment and monitoring. Feizollahi et al 1994;Feizollahi and Quapp 1995;Geimer et al 1992;Hassel et al 1994;Mayberry et al 1991, Roesener et al 1992Soelberg et al 1994;Soelberg et al 1996;Surma et al 1993;and MWFA Melter Technology Strategy 1996). Many of these technologies generate a glass or rock-like final waste form which requires no further stabilization.…”

Section: Process Equipment and Off Gas Controlsmentioning

confidence: 99%

Mixed waste characterization reference document

1997

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Section: Process Equipment and Off Gas Controlsmentioning

confidence: 99%

Mixed waste characterization reference document

1997

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“…conducted as a follow-up to a separate study conducted by EG&G Idaho, referred to as the Preliminary Systems Design Study (SDS). 1 The SDS provided an overall evaluation of a variety of .…”

Section: Executive Summarymentioning

confidence: 99%

Assessment of incineration and melting treatment technologies for RWMC buried waste

Geimer¹,

Hertzler²,

Gillins

et al. 1992

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“…Based on the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) decision process, INEEL'S SDA has been on the National Priority List for remediation since 1989 (Geimer et al 1992). Since then, remediation strategies have identified thermal treatment of the SDA buried wastes to produce a stabilized-vitreous form as a highly rated option (Mayberry et al 1991). Systems being considered for this type of treatment include arc-and plasma-heated furnaces.…”

Section: Introductionmentioning

confidence: 99%

Treatment studies of plutonium-bearing INEEL waste surrogates in a bench-scale arc furnace

Freeman¹

1997

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Since 1989, the Subsurface Disposal Area (SDA) at the Idaho National Environmental and Engineering Laboratory (INEEL) has been included on the National Priority List for remediation. Arcand plasma-heated furnaces are being considered for converting the radioactive mixed waste buried in the SDA to a stabilized-vitreous form. Nonradioactive, surrogate SDA wastes have been melted during tests in these types of furnaces, but data are needed on the behavior of transuranic (TRU) constituents, primarily plutonium, during thermal treatment. To begin collecting this data, plutonium-spiked SDA surrogates were processed in a bench-scale arc furnace to quantify the fate of the plutonium and other hazardous and nonhazardous metals. Test conditions included elevating the organic, lead, chloride, and sodium contents of the surrogates. Blends having higher organic contents caused furnace power levels tofluctuate. An organic content corresponding to 50% INEEL soil in a soil-waste blend was the highest achievable before power fluctuations made operating conditions unacceptable.The glass, metal, and off-gas solids produced from each surrogate blend tested were analyzed for elemental (including plutonium) content and the partitioning of each element to the corresponding phase was calculated. In each test, the metal phase partitioning values for plutonium were nearly identical to those for calcium, aluminum, and titanium, with the highest and lowest values measured at 6.0% and 0.1 %, respectively. The presence of plutonium in the metal was concluded to be primarily fiom glass contaminating the samples. In each test, the partitioning values for plutonium, to the off-gas solids phases, ranged from 0.3% to 2.0%. These values were also nearly identical to those for calcium, aluminum, and titanium. Because of the low vapor pressure of plutonium and each of these other elements' oxide forms, entrainment, not volatilization, was concluded to be the mechanism for their transfer to the off-gas. The analyses for chromium and lead partitioning revealed that less than one half of the chromium and one quarter of the lead for each surrogate blend partitioned to the metal phases, and less than 8% of the chromium and between 25% and 60% of the lead partitioned to the off-gas.

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Preliminary Systems Design Study assessment report

Cited by 4 publications

References 0 publications

Mixed waste characterization reference document

Mixed waste characterization reference document

Assessment of incineration and melting treatment technologies for RWMC buried waste

Treatment studies of plutonium-bearing INEEL waste surrogates in a bench-scale arc furnace

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