How to deal with radiologically contaminated vegetation

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Description

This report describes the findings from a literature review conducted as part of a Department of Energy, Office of Technology Development Biomass Remediation Task. The principal objective of this project is to develop a process or group of processes to treat radiologically contaminated vegetation in a manner that minimizes handling, processing, and treatment costs. Contaminated, woody vegetation growing on waste sites at SRS poses a problem to waste site closure technologies that are being considered for these sites. It is feared that large sections of woody vegetation (logs) can not be buried in waste sites where isolation of waste is ... continued below

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54 p.

Creation Information

Wilde, E.W.; Murphy, C.E.; Lamar, R.T. & Larson, M.J. December 31, 1996.

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Description

This report describes the findings from a literature review conducted as part of a Department of Energy, Office of Technology Development Biomass Remediation Task. The principal objective of this project is to develop a process or group of processes to treat radiologically contaminated vegetation in a manner that minimizes handling, processing, and treatment costs. Contaminated, woody vegetation growing on waste sites at SRS poses a problem to waste site closure technologies that are being considered for these sites. It is feared that large sections of woody vegetation (logs) can not be buried in waste sites where isolation of waste is accomplished by capping the site. Logs or large piles of woody debris have the potential of decaying and leaving voids under the cap. This could lead to cap failure and entrance of water into the waste. Large solid objects could also interfere with treatments like in situ mixing of soil with grout or other materials to encapsulate the contaminated sediments and soils in the waste sites. Optimal disposal of the wood includes considerations of volume reduction, treatment of the radioactive residue resulting from volume reduction, or confinement without volume reduction. Volume reduction consists primarily of removing the carbon, oxygen, and hydrogen in the wood, leaving an ash that would contain most of the contamination. The only contaminant that would be released by volume reduction would by small amounts of the radioactive isotope of hydrogen, tritium. The following sections will describe the waste sites at SRS which contain contaminated vegetation and are potential candidates for the technology developed under this proposal. The description will provide a context for the magnitude of the problem and the logistics of the alternative solutions that are evaluated later in the review. 76 refs.

Physical Description

54 p.

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INIS; OSTI as DE97009004

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  • Other Information: PBD: [1996]

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  • Other: DE97009004
  • Report No.: WSRC-TR--96-0125
  • Grant Number: AC09-89SR18035
  • DOI: 10.2172/527438 | External Link
  • Office of Scientific & Technical Information Report Number: 527438
  • Archival Resource Key: ark:/67531/metadc695416

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  • December 31, 1996

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  • Aug. 14, 2015, 8:43 a.m.

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  • Feb. 9, 2016, 5:52 p.m.

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Wilde, E.W.; Murphy, C.E.; Lamar, R.T. & Larson, M.J. How to deal with radiologically contaminated vegetation, report, December 31, 1996; Aiken, South Carolina. (digital.library.unt.edu/ark:/67531/metadc695416/: accessed September 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.