Advice on the Department of Energy's Cleanup Technology Roadmap Gaps and Bridges (2009) / Chapter Skim
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Appendix C: Needs Matrix
Appendix C: Needs Matrix
Pages 169-177
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From page 169... ...
Appendix C Needs Matrix This Appendix summarizes the committee's initial assessments of technology needs that led to its short list of technology gaps and the gap analyses presented in Chapter 2.
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From page 170... ...
Understanding Hg in x (x) Develop a mechanistic understanding of the concentrations in the environment the environment chemistry, transport, and biology of Hg in the environment and key receptor species Ensuring continuity of knowledge/ Continuity of x x x x Systematically identify and prioritize threats to the experience due to impending retirements knowledge continuity of knowledge and the inability to maintain critical and stable level of funding to support highpriority technology areas Removing nonradioactive chemicals Improved separations x x More selective and efficient approaches to such as Al, Cr, Na from sludge technology removing nonradioactive chemicals from sludge wastes Develop accurate simulants Removing key radionuclides -- Cs, Sr, Improved separations x x More selective and efficient approaches, including TRU, Tc -- from sludge technology alternatives, to removing key radionuclides from supernatants
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From page 171... ...
Develop accurate simulants Tank cleanout with many physical Improved retrieval x x Chemical approaches to removing waste from obstructions (coils, debris, and annuli) technology surfaces that do not degrade the tanks or cause downstream problems Physical approaches to isolate or corral debris while retrieving waste to the maximum extent practical Physical approaches to demolish and remove internal tank structures to allow access for waste retrieval and reduce intrusion pathways Lack of capability to predict Understanding x x x x Broad-based understanding of source mobilization, contaminant mobility in varying contaminant mobility transport, and degradation for organic and situations.
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From page 172... ...
, saltstone vaults, containment barriers containing waste constituents grouted tanks, grouted pipelines 2. Obtain capability to predict the performance of cementious materials containing waste constituents Separating solids from supernatant and Improved separations x x 1.
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From page 173... ...
Capability to stabilize hot spots in situ Disaggregation/size reduction of residual Improved retrieval x x 1. Chemical approaches that do not degrade the clinkers, gravel, and recalcitant surface technology tanks or cause downstream problems deposits in waste tanks 2.
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From page 174... ...
Long-Term EM Cleanup Problem or Issue Technology Need OR HAN ID SR Technology Approaches Long-term monitoring of closed Improved monitoring x x x x Capability for sustainable remote monitoring facilities and engineered barrier systems technology around and within engineered facilities and barriers Long-term monitoring strategies and Improved monitoring x x x x Capability for sustainable remote subsurface devices for contaminants in soil and technology monitoring groundwater and deep vadose zones Determining moisture flux through Improved subsurface (x)
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From page 175... ...
Extend the current understanding of tank waste chemistry to provide a basis for combining wastes now believed to be incompatible Detailed analysis for determining Technical basis to x x Develop a generic technical approach and proposed alternative end-state support evaluation data insofar as possible for doing site-specific acceptance criteria or performance of alternative risk- performance and remediation technology assessment for large contaminated informed approaches assessments for greenfield and rubbleized/grouted structures such as canyon buildings facilities such as canyons and reactors Determining how to characterize the Improved subsurface (x)
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From page 176... ...
Long-Term EM Cleanup Problem or Issue Technology Need OR HAN ID SR Technology Approaches Technical impracticality waiver Technical basis to x Develop a generic technical approach and support evaluation data insofar as possible for doing site-specific of alternative risk- performance and remediation technology informed approaches assessments to support consideration of technology impracticability waivers Real-time detection of airborne Improved sensors x Sensors capable of real-time detection of Be on contaminant release during demolition surfaces and in the air of Be-contaminated buildings Removal of contaminants from Improved x Advanced methods to leach/migrate contaminants cementitious matrices decontamination from cementitious matrices technology Acceptability of treated Idaho sodium Technical basis to x Develop a risk-informed basis for disposing of bearing waste in Waste Isolation Pilot support evaluation sodium-bearing waste and other TRU wastes in Plant (WIPP) of alternative risk- WIPP informed approaches Predictability and control of hydrogen Understanding of x Predictive understanding of sludge behavior generation sludge behavior (chemical and physical)
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From page 177... ...
Mobile waste retrieval systems for small Improved retrieval x Mobile, flexible, smaller retrieval devices that can tanks technology be easily transported from tank to tank Processing SRS Tank 48 waste Destruction of residual x Improved understanding of TPB degradation and tetraphenylborate the effects of tank contents thereon (TPB) and other organic chemicals 177
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