Tank Waste Retrieval, Processing, and On-site Disposal at Three Department of Energy Sites Final Report (2006) / Chapter Skim
Currently Skimming:
IV Processing and Treatment of Retrieved Tank Waste
IV Processing and Treatment of Retrieved Tank Waste
Pages 51-61
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 51... ...
provides the current legal underpinning of retrieved tank wastes at the Hanford and the Savannah River DOE's radionuclide separation strategy for the Savannah Sites. Although the Hanford waste is more diverse than that River Site.
|
From page 52... ...
, selectively ration of the Savannah River Site tank wastes to formulate retrieves salt waste that has relatively low concentrations of plans for their permanent disposal. Once retrieved from the cesium.
|
From page 53... ...
ARP/MCU alone of SWPF Phase 2: High-Capacity Processing Step 3 SWPF 2005 2007 2009 2011 2013 2015 2017 2019 Year FIGURE IV-1 Time line for salt waste processing at the Savannah River Site as described by DOE (two-phase, three-step approach)
|
From page 54... ...
Recovered products will be sent to the added to a tank to sorb strontium and the actinides. The Defense Waste Processing Facility to be incorporated into monosodium titanate is recovered by filtration.
|
From page 55... ...
. The committee is unable to offer further insights on tion achieved with DDA raises the question: Does this process this issue because DOE was still formulating its plans as this remove radionuclides to the maximum extent practical?
|
From page 56... ...
1970s (see Sidebar II-1) , Hanford has had relatively less experience in waste processing than the Savannah River Site Waste Treatment and Immobilization Plant Pretreatment and its tank wastes are more heterogeneous.
|
From page 57... ...
HLW HLW Canister Vitrification Washed Solids Storage HLW Feed Yucca WTP PRETREATMENT Mountain FIGURE IV-5 Waste Treatment and Immobilization Plant pretreatment steps.
|
From page 58... ...
then in the tank waste and to and ion exchange (for some wastes) to remove cesium-137.
|
From page 59... ...
bulk vitrification facility at Hanford; heard presentations on this technology from DOE and contractors; and reviewed available literature. The committee observed that bulk vitriBulk Vitrification of Low-Activity Waste fication is a much different approach to processing than the The Waste Treatment and Immobilization Plant Low- Savannah River Site saltstone.
|
From page 60... ...
However, it cannot presented the committee with an enormous amount of waste characterization data based on actual sampling, process histories, and model calculations.9 While such characterization 10This finding refers to the low-activity fractions of tank waste that the Savannah River Site and Hanford will dispose on-site and the sodium bearing waste at the Idaho National Laboratory that DOE considers to be 9See Tables II-1, II-2, and II-3 in Chapter II for summaries of these data. transuranic waste.
|
From page 61... ...
of schedule delays in Recommendation IV-3a: To reduce the quantities of radio- Savannah River Site salt processing against those of sending nuclides to be disposed of on-site, DOE should develop increased quantities of radionuclides to on-site disposal in alternates or enhancements to the deliquification, dissolu- order to preserve tank closure schedules.
|
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.