Waste characterization for radioactive liquid waste evaporators at Argonne National Laboratory - West.

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Several facilities at Argonne National Laboratory - West (ANL-W) generate many thousand gallons of radioactive liquid waste per year. These waste streams are sent to the AFL-W Radioactive Liquid Waste Treatment Facility (RLWTF) where they are processed through hot air evaporators. These evaporators remove the liquid portion of the waste and leave a relatively small volume of solids in a shielded container. The ANL-W sampling, characterization and tracking programs ensure that these solids ultimately meet the disposal requirements of a low-level radioactive waste landfill. One set of evaporators will process an average 25,000 gallons of radioactive liquid waste, provide shielding, ... continued below

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12 p.

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Christensen, B. D. February 15, 1999.

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Description

Several facilities at Argonne National Laboratory - West (ANL-W) generate many thousand gallons of radioactive liquid waste per year. These waste streams are sent to the AFL-W Radioactive Liquid Waste Treatment Facility (RLWTF) where they are processed through hot air evaporators. These evaporators remove the liquid portion of the waste and leave a relatively small volume of solids in a shielded container. The ANL-W sampling, characterization and tracking programs ensure that these solids ultimately meet the disposal requirements of a low-level radioactive waste landfill. One set of evaporators will process an average 25,000 gallons of radioactive liquid waste, provide shielding, and reduce it to a volume of six cubic meters (container volume) for disposal. Waste characterization of the shielded evaporators poses some challenges. The process of evaporating the liquid and reducing the volume of waste increases the concentrations of RCIU regulated metals and radionuclides in the final waste form. Also, once the liquid waste has been processed through the evaporators it is not possible to obtain sample material for characterization. The process for tracking and assessing the final radioactive waste concentrations is described in this paper, The structural components of the evaporator are an approved and integral part of the final waste stream and they are included in the final waste characterization.

Physical Description

12 p.

Notes

INIS; OSTI as DE00010989

Medium: P; Size: 12 pages

Source

  • Waste Management Symposium '99, Tucson, AZ (US), 02/28/1999--03/04/1999

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  • Report No.: ANL/OD/CP-97383
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 10989
  • Archival Resource Key: ark:/67531/metadc623978

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  • February 15, 1999

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • April 6, 2017, 8:12 p.m.

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Christensen, B. D. Waste characterization for radioactive liquid waste evaporators at Argonne National Laboratory - West., article, February 15, 1999; Illinois. (digital.library.unt.edu/ark:/67531/metadc623978/: accessed September 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.