In situ vitrification pilot-scale radioactive test

Timmerman, C.L.; Oma, K.H.

doi:10.2172/6154654

Cited by 6 publications

(10 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The remaining 0.5% is accounted for in the off-gas hood and off-gas line. These quantities compare closely with those previously reported for pilot-scale radioactive tests (Timmerman and Oma 1984). The venturi scrubber pump failure had no effect on process efficiency or system accumulations.…”

supporting

confidence: 89%

“…At 5 h into the test the pump to the venturi scrubber was shut down because of a leak in the pump surge tank, thus requiring the Hydro-Sonic scrubber to perform all the off-gas stream scrubbing. The sing l e scrubber has proven effective in this performance (Timmerman and Oma 1984) and was actually designed to handle such an occurrence. Table 2 shows predicted and actual operat i ng data obtained from the ISV/ORNL pilot-scale test.…”

Section: Test Process For Ornl Isv Demonstrationmentioning

confidence: 99%

“…The same phenomenon was noted in the engineering-scale test and was thought to occur because the sample was taken in a melt zone created by a higher concentration of Sr than that distributed throughout the remaining vitrified mass. Previous convection data from testing shows distribution of radionuclides to be within a factor of 3 from the normal distribution (Timmerman and Oma 1984). For the pilot-scale test a sufficient number of samples were analyzed, and the data evaluated, to show an even distribution of Sr throughout the vitrified mass.…”

Section: General Observationsmentioning

confidence: 99%

“…PNL began development of the ISV technology in 1980 under contract to the U.S. Department of Energy (DOE) (Brauns, Buelt, and Bonner 1983 Trench 7 (Spalding 1987) that time numerous experimental tests using a variety of conditions and waste types have been conducted (Buelt et al 1987;Timmerman and Oma 1984;Timmerman et al 1983). A large-scale ISV unit was designed, fabricated, and tested (Buelt and Carter 1986).…”

mentioning

confidence: 99%

See 3 more Smart Citations

Process performance of the pilot-scale in situ vitrification of a simulated waste disposal site at the Oak Ridge National Laboratory

Carter¹,

Koegler²,

Bates³

1988

View full text Add to dashboard Cite

Frank Hara and his respective staffs were invaluable in providing highquality laboratory studies and analytical services to the program. We would also like to acknowledge the material characterization staff of Gary Maupin, Anita Alger, and Mike Schweiger for their high-quality laboratory material evaluation of the vitrified mass product. In addition, we thank Kathy Borgeson for editing the text and DeDe Johnson for completing the word processing .

show abstract

supporting

confidence: 89%

Section: Test Process For Ornl Isv Demonstrationmentioning

confidence: 99%

Section: General Observationsmentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Process performance of the pilot-scale in situ vitrification of a simulated waste disposal site at the Oak Ridge National Laboratory

Carter¹,

Koegler²,

Bates³

1988

View full text Add to dashboard Cite

show abstract

“…Since that time, numerous experimental tests under a variety of site conditions and with a variety of waste types have been conducted (Buelt et al 1987;Timmerman and Oma 1984;Timmerman et al 1983;Buelt and Carter 1986;Carteret al 1987). Table I describes the different scales of testing units that PNL uses in developing and adapting ISV technology.…”

Section: Process Description and Status Of Developmentmentioning

confidence: 99%

Feasibility Testing of In Situ Vitrification of Arnold Engineering Development Center Contaminated Soils

Timmerman¹

1989

View full text Add to dashboard Cite

Pilot-Scale Testing of In Situ Vitrification of Arnold Engineering Development Center Site 10 Contaminated Soils

Timmerman¹,

Peterson²

1990

View full text Add to dashboard Cite

Process verification testing using in situ vitrification (ISV) was successfully performed in a pilot-scale test using soils containing fuel oils and heavy metals from Site 10 Installation Restoration Program (IRP) at the Arnold Engineering Development Center (AEDC) located in the southern portion of middle Tennessee . This effort was directed through the U.S. Department of Energy ' s Hazardous Waste Remedial Action Program (HAZWRAP) Office managed by Martin Marietta Energy Systems. In situ vitrification is a thermal treatment process that converts contaminated soils and wastes into a durable product containing glass and crystalline phases. During processing, heavy metals or other inorganic constituents are retained and immobilized in the glass structure; organic constituents are typically destroyed or removed and captured by the off-gas treatment system.The objective of this test is to verify the applicability of the ISV process for stabilization of the contaminated soil at Site 10 . The pilotscale ISV testing results, reported herein, indicate that the AEDC Site 10 Fire Training Area may be successfully processed by ISV. Site 10 is a fire training pit that is contaminated with fuel oils and heavy metals from fire training exercises. Actual site material was processed by ISV to verify its feasible application to those soils . Initial feasibility bench-scale testing and analyses of the soils determined that a lower-melting, electrically conductive fluxing additive (such as sodium carbonate) is required as an additive to the soil for ISV processing to work effecti vely . The actual Site 10 soils showed a larger degree of compositional variation than the soil used for the bench-scale test . This variation dictates that each vitrification setting should be analyzed to determine the composition as . a function of depth and location . This data will dictate the amount (if any) of fluxing add i tives of sodium and calci um to bring the melt composition to the recommended quantity of 5 wt% sodium and 5 wt% calcium oxide. Each variable additive adjustment would result in a vitrification melt composition of 5 wt% calcium and sodium oxide content .The pilot -scale operation created a vitrified block weighing 15 metric t onnes (t) and measuring 1. 5 m (5 ft) deep and 2. 4 m (8 ft) on each side .

show abstract

In situ vitrification pilot-scale radioactive test

Cited by 6 publications

References 0 publications

Process performance of the pilot-scale in situ vitrification of a simulated waste disposal site at the Oak Ridge National Laboratory

Process performance of the pilot-scale in situ vitrification of a simulated waste disposal site at the Oak Ridge National Laboratory

Feasibility Testing of In Situ Vitrification of Arnold Engineering Development Center Contaminated Soils

Pilot-Scale Testing of In Situ Vitrification of Arnold Engineering Development Center Site 10 Contaminated Soils

Contact Info

Product

Resources

About