Review of the Draft Analysis of Supplemental Treatment Approaches of Low-Activity Waste at the Hanford Nuclear Reservation Review #2 (2018) / Chapter Skim
Currently Skimming:
3 Analysis of the Alternative Treatment Approaches
3 Analysis of the Alternative Treatment Approaches
Pages 22-31
The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.
From page 22... ...
• How much will each waste formation process cost? In addition, how do the costs for the various waste formation processes compare to each other, and what are the effects of funding constraints?
|
From page 23... ...
Recognizing that compositions will vary over time and from tank to tank, the committee suggests it would be helpful for the report to contain data on the average and expected range of compositions and chemical forms and for the FFRDC to discuss these data in its final report. Because the underlying question is how well the disposal of the waste forms from the alternatives meets the performance requirements, the committee suggests that the final report describe the waste form in enough detail (including materials description, location of key radionuclides and metals [as listed in the Resource Conservation and Recovery Act]
|
From page 24... ...
Because the production processes for the three waste forms differ significantly, the specific questions that need to be addressed are not necessarily the same for each of them. Nonetheless, the committee points out here common themes it suggests the FFRDC address for each production process.
|
From page 25... ...
Programmatic risk is a fundamental issue at the Hanford Nuclear Reservation. The combination of extremely hazardous and heterogenous waste forms, high-cost storage facilities (e.g., the tanks)
|
From page 26... ...
The committee suggests that the FFRDC summarize these important points in the main body of its final report. Feasibility FBSR has been extensively tested at various facilities and at various scales and has demonstrated success in eliminating organics, nitrates/nitrites, sulfates, chlorides, fluorides, and other contaminants from waste streams.
|
From page 27... ...
COSTS OF WASTE FORMATION PROCESSES How much will each waste formation process cost? In this section, the committee provides observations about the FFRDC's cost estimations for the waste treatment processes and makes suggestions about how the FFRDC could improve cost estimates in its final report.
|
From page 28... ...
, and logistical unit operations must be included." As with the vitrification analog, it would be helpful for the FFRDC's report to discuss more fully why the team has chosen this grout treatment method in its cost estimation. The FFRDC has selected the IWTU at INL as the analog for the FBSR treatment cost estimate, but the draft report notes the IWTU is nominally half the capacity required for SLAW processing and will produce a different mineral (aluminosilicate proposed for Hanford versus sodium carbonate in IWTU)
|
From page 29... ...
As the draft report makes clear, the FFRDC has identified WCS, a commercial low-level waste disposal site near Andrews, Texas, as a potential off-site disposal facility for the final waste forms of SLAW. WCS has been licensed to receive Class A, B, and C low-level waste (LLW)
|
From page 30... ...
The Washington Department of Ecology is the regulator for RCRA issues, and a permit is required before the IDF can be operated. Currently, there is a draft permit for disposal of vitrified LAW in the IDF, but no other waste forms are authorized, and WAC acceptable to both DOE and Washington Ecology have not been finalized.
|
From page 31... ...
The committee suggests that in the assessment of alternatives that require transportation of nuclear wastes through multiple states, the FFRDC consider concerns of potential opposition of local stakeholders along the transportation routes. Finding 3-3 The regulatory environment for the Hanford tank waste is complex and contested.
|
Key Terms
This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More
information on Chapter Skim is available.