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Tank Waste Retrieval, Processing, and On-site Disposal at Three Department of Energy Sites Final Report (2006) / Chapter Skim
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Appendix E Interim Report Summary and Follow-up
Pages 151-158

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From page 151...
... 6Reprocessing operations at the Savannah River Site started in 1953 and the waste streams stored in tanks prior to waste processing. 3The National Academies appointed a committee to carry out this study.
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From page 152...
... Because of practical limitations on waste retrieval, Although the composition of waste in each tank varies, the tanks "emptied" tanks will still contain variable amounts of the radiogenerally contain a bottom layer of a peanut-butter-like deposit of active waste (the "heel") , depending on the success of the retrieval insoluble solids (referred to as sludge)
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From page 153...
... a low-activity waste stream, which DOE indicated to the committee that the Savannah River Site is is to be disposed on-site. facing a "tank space crisis" because of net waste inputs from cur At the Savannah River Site, DOE already retrieves sludge and rent waste processing and waste removal operations.
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From page 154...
... DOE should make additional investments in research and development to enhance tank waste retrieval (reducing the source term) , improve residual waste immobilization (stabilizing Near-Term versus Long-Term Risks the source term)
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From page 155...
... to establish limits on what is generally acceptable for near-surface disposal, based in part on assumptions about the overall set of Waste retrieval, processing, and tank cleaning operations con- wastes destined for disposal. According to Section 3116, comtinuously add secondary wastes to the tanks; in addition, space in parison of radionuclide concentrations in waste to Class C limits is compliant tanks is needed to prepare feeds for the high-level and relevant to waste disposition decisions only procedurally, in that salt waste processing facilities.
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From page 156...
... These at the mostly decommissioned TNX facility used for testing and investigations at other sites will have an impact on the committee's equipment before deployment, and similar test beds at other sites, views on the Savannah River Site. Hanford will likely offer the are candidates for this role.
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From page 157...
... River Site. Some tanks are scheduled for waste removal years Since the interim report was released, the main point the before they are scheduled for closure.
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From page 158...
... DOE said that the Savannah River Site has no way to get the DWPF recycle stream directly to the Saltstone Production Facility (Triay, 2005)
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Key Terms

  • waste retrieval
  • retrieval technologies
  • tank waste
  • cooling coils
  • savannah river

  • heel removal
  • river site
  • test bed
  • test beds
  • tank cleanup

  • waste removal
  • tank cleaning
  • residual waste
  • tnx facility
  • water jet

  • test tank
  • waste immobilization
  • secondary waste
  • chemical cleaning
  • robotic device

  • tank grouting
  • waste process
  • tank situations
  • tank farms
  • decommissioned tnx

  • increase confidence
  • water jets
  • tank heel
  • worker exposure
  • tank closure


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