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Title: SRS DEFENSE WASTE PROCESSING FACILITY - THE NATION'S ONLY OPERATING VITRIFICATION FACILITY - COMPLETES 20 YEARS OF RADIOACTIVE OPERATIONS

Authors:
; ;
Publication Date:
Research Org.:
SRS
Sponsoring Org.:
USDOE
OSTI Identifier:
1348167
Report Number(s):
SRR-STI-2016-00649
DOE Contract Number:
DE-AC09-08SR22470
Resource Type:
Conference
Resource Relation:
Conference: WM Symposia 2017
Country of Publication:
United States
Language:
English

Citation Formats

Jain, V., Schmitz, M., and Foster, T. SRS DEFENSE WASTE PROCESSING FACILITY - THE NATION'S ONLY OPERATING VITRIFICATION FACILITY - COMPLETES 20 YEARS OF RADIOACTIVE OPERATIONS. United States: N. p., 2017. Web.
Jain, V., Schmitz, M., & Foster, T. SRS DEFENSE WASTE PROCESSING FACILITY - THE NATION'S ONLY OPERATING VITRIFICATION FACILITY - COMPLETES 20 YEARS OF RADIOACTIVE OPERATIONS. United States.
Jain, V., Schmitz, M., and Foster, T. Thu . "SRS DEFENSE WASTE PROCESSING FACILITY - THE NATION'S ONLY OPERATING VITRIFICATION FACILITY - COMPLETES 20 YEARS OF RADIOACTIVE OPERATIONS". United States. doi:. https://www.osti.gov/servlets/purl/1348167.
@article{osti_1348167,
title = {SRS DEFENSE WASTE PROCESSING FACILITY - THE NATION'S ONLY OPERATING VITRIFICATION FACILITY - COMPLETES 20 YEARS OF RADIOACTIVE OPERATIONS},
author = {Jain, V. and Schmitz, M. and Foster, T.},
abstractNote = {},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 05 00:00:00 EST 2017},
month = {Thu Jan 05 00:00:00 EST 2017}
}

Conference:
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  • The Savannah River Site`s Defense Waste Processing Facility (DWPF) near Aiken, SC is the nation`s first and the world`s largest vitrification facility. Following a ten year construction program and a 3 year non-radioactive test program, DWPF began radioactive operations in March 1996. This paper presents the results of the first 9 months of radioactive operations. Topics include: operations of the remote processing equipment reliability, and decontamination facilities for the remote processing equipment. Key equipment discussed includes process pumps, telerobotic manipulators, infrared camera, Holledge{trademark} level gauges and in-cell (remote) cranes. Information is presented regarding equipment at the conclusion of the DWPFmore » test program it also discussed, with special emphasis on agitator blades and cooling/heating coil wear. 3 refs., 4 figs.« less
  • The Defense Waste Processing Facility (DWPF) and the Hanford Waste Vitrification Plant (HWVP) projects will provide similar facilities for producing vitrified high-level defense waste in scaled, stainless-steel canisters. The respective production sites will also provide interim storage for at least some of the canistered waste pending availability of a permanent repository. The canistered waste form will be produced under stringent controls to support final placement in the US Nuclear Regulatory Commission's (NRC) licensed, deep geological repository.
  • The Defense Waste Processing Facility (DWPF), at the Savannah River Site (SRS), is processing and immobilizing the radioactive high level waste sludge at SRS into a durable borosilicate glass for final geological disposal. The DWPF is currently processing the second, million gallon batch of radioactive sludge. This second batch is primarily from Tank 42. Each time a new batch of radioactive sludge is to be processed by the DWPF, the process flowsheet is to be tested and demonstrated to ensure an acceptable melter feed and glass can be made. This demonstration was completed in the Shielded Cells Facility in themore » Savannah River Technology Center at SRS. This paper presents the processing and offgas data, and compositional analyses obtained during the preparation of a melter feed for this demonstration. A second paper in this conference describes the properties of the glass produced from this feed. The demonstration used Tank 42 sludge slurry and the DWPF process control strategy for blending the sludge slurry with Frit 200 to make an acceptable melter feed. To prepare feed for the melter, the flowsheet requires that the radioactive sludge slurry be treated with nitric and formic acid to adjust rheology and remove mercury. During this step, hydrogen is formed from the decomposition of the formic acid. The acidified sludge slurry is then mixed with the prescribed amount of glass forming frit and evaporated to the proper weight percent solids to prepare feed to the melter. During this step hydrogen is also formed. Results indicate that the H{sub 2} generation rate is below the DWPF safety limits and an acceptable melter feed was produced.« less
  • The Defense Waste Processing Facility (DWPF) at the Savannah River Site (SRS) is currently processing and immobilizing the radioactive high level waste sludge at SRS into a durable borosilicate glass for final geological disposal. The DWPF has recently finished processing the first radioactive sludge batch, and is ready for the second batch of radioactive sludge. The second batch is primarily sludge from Tank 42. Before processing this batch in the DWPF, the DWPF process flowsheet has to be demonstrated with a sample of Tank 42 sludge to ensure that an acceptable melter feed and glass can be made. This demonstrationmore » was recently completed in the Shielded Cells Facility at SRS. An earlier paper in these proceedings described the sludge composition and processes necessary for producing an acceptable melter fee. This paper describes the preparation and characterization of the glass from that demonstration. Results substantiate that Tank 42 sludge after mixing with the proper amount of glass forming frit (Frit 200) can be processed to make an acceptable glass.« less
  • The Savannah River Site`s Defense Waste Processing Facility (DWPF) near Aiken, South Carolina is the nation`s first and world`s largest vitrification facility. Following a ten year construction period and nearly three years of non-radioactive testing, the DWPF began radioactive operations in March 1996. Radioactive glass is poured from the joule heated melter into the stainless steel canisters. The canisters are then temporarily sealed, decontaminated, resistance welded for final closure, and transported to an interim storage facility. All of these operations are conducted remotely with equipment specially designed for these processes. This paper reviews canister processing during the first nine monthsmore » of radioactive operations at DWPF. The fundamental design consideration for DWPF remote canister processing and handling equipment are discussed as well as interim canister storage.« less