Alternative High-Level Waste Treatments at the Idaho National Engineering and Environmental Laboratory (1999) / Chapter Skim
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11 What Should Be Done: INEEL HLW Calcine
11 What Should Be Done: INEEL HLW Calcine
Pages 97-100
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From page 97... ...
As discussed in Chapters 9 and 10, the committee believes that no clearly acceptable pathway for ultimate disposal of the HLW calcine has been defined, and therefore, more information than is currently available is needed to make an informed technical decision among the various processing options. The ultimate disposal location is uncertain, the form in which it would be acceptable at that location may differ from current specifications developed for the first repository, and the transportation pathway to get Here (with its regulatory requirements)
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From page 98... ...
, which decays with a relatively short half-life compared to other TRU isotopes. This significant fraction of 238Pu in the waste means that INEEL calcine, more than other DOE HLW inventories, can be remediated via natural radioactive decay while in interim storage (Figure 1 1.
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From page 99... ...
The shorter-lived radionuclides, which are the fission products Cs and Sr and other species listed in Table II of 10 CFR 61, are reduced by approximately five orders of magnitude in 500 years. Also shown are the Class C LLW limits that Tables I and II provide for these two categories of radionuclides.
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From page 100... ...
At the Savannah River Site, the liquid HLW is stored in single- and double-shell carbon steel tanks that are located close to ground water. These conditions appear to pose a greater hazard or potential for release than solid calcine stored in stainless steel bins at INEEL.
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