Behavior of mercury and iodine during vitrification of simulated alkaline Purex waste

Holton, L.K.

doi:10.2172/6123208

Cited by 3 publications

(2 citation statements)

References 2 publications

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“…During FY-1981, 12 experiments (Holton 1981) were conducted within the LSSC/ICM to study the behavior of mercury and iodine during vitrification of simulated Savannah River Plant waste.…”

Section: Lab-scale Sc/icm Testsmentioning

confidence: 99%

Defense waste vitrification studies during FY-1981. Summary report

Bjorklund¹

1982

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PNL-4366 UC-70 An overheating incident occurred with the LFCM in which glass temperatures up to 1480°C were experienced. The most serious result was corrosion of the melter lid liner (Inconel-601). Some minor melting of the Inconel-690 "electrodes was noted. Lab-seal e vitrifi cati on tests to study mercury behavi or ina vitrifi cation system were also completed this year. A lab-scale spray calciner/in-can melter system was used. All mercury feed to the system was volatilized. Ninety percent of the mercury reacts in the gas phase to form dense parti culates of HgI, HgCl and HgO; ten percent of the mercury was recovered in the metallic form.

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“…During FY-1981, 12 experiments (Holton 1981) were conducted within the LSSC/ICM to study the behavior of mercury and iodine during vitrification of simulated Savannah River Plant waste.…”

Section: Lab-scale Sc/icm Testsmentioning

confidence: 99%

Defense waste vitrification studies during FY-1981. Summary report

Bjorklund¹

1982

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“…Hg was used as a catalyst for dissolving aluminum cladding, aluminum containers, and uranium during nuclear fuel reprocessing. [5][6][7] Hg was also used to produce enriched lithium-6, which is used in nuclear weapons. New spent fuel reprocessing technologies that do not require Hg are now being developed, but legacy wastes from past nuclear fuel reprocessing operations normally contain Hg.…”

Section: Introductionmentioning

confidence: 99%

Carbon Bed Mercury Emissions Control for Mixed Waste Treatment

Soelberg

Enneking

2010

Journal of the Air & Waste Management Association

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Mercury has various uses in nuclear fuel reprocessing and other nuclear processes, and so it is often present in radioactive and mixed (radioactive and hazardous) wastes. Compliance with air emission regulations such as the Hazardous Waste Combustor (HWC) Maximum Achievable Control Technology (MACT) standards can require off-gas mercury removal efficiencies up to 99.999% for thermally treating some mixed waste streams. Test programs have demonstrated this level of off-gas mercury control using fixed beds of granular sulfur-impregnated activated carbon. Other results of these tests include (1) the depth of the mercury control mass transfer zone was less than 15-30 cm for the operating conditions of these tests; (2) MERSORB carbon can sorb mercury up to 19 wt % of the carbon mass; and (3) the spent carbon retained almost all (98.3-99.99%) of the mercury during Toxicity Characteristic Leachability Procedure (TCLP) tests, but when even a small fraction of the total mercury dissolves, the spent carbon can fail the TCLP test when the spent carbon contains high mercury concentrations.

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