Microbial degradation of low-level radioactive waste. Volume 2, Annual report for FY 1994

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Description

The Nuclear Regulatory Commission stipulates in 10 CFR 61 that disposed low-level radioactive waste (LLW) be stabilized. To provide guidance to disposal vendors and nuclear station waste generators for implementing those requirements, the NRC developed the Technical Position on Waste Form, Revision 1. That document details a specified set of recommended testing procedures and criteria, including several tests for determining the biodegradation properties of waste forms. Cement has been widely used to solidify LLW; however, the resulting waste forms are sometimes susceptible to failure due to the actions of waste constituents, stress, and environment. The purpose of this research program ... continued below

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55 p.

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Rogers, R.D.; Hamilton, M.A.; Veeh, R.H. & McConnell, J.W. Jr. August 1, 1995.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 27 times . More information about this report can be viewed below.

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Description

The Nuclear Regulatory Commission stipulates in 10 CFR 61 that disposed low-level radioactive waste (LLW) be stabilized. To provide guidance to disposal vendors and nuclear station waste generators for implementing those requirements, the NRC developed the Technical Position on Waste Form, Revision 1. That document details a specified set of recommended testing procedures and criteria, including several tests for determining the biodegradation properties of waste forms. Cement has been widely used to solidify LLW; however, the resulting waste forms are sometimes susceptible to failure due to the actions of waste constituents, stress, and environment. The purpose of this research program is to develop modified microbial degradation test procedures that will be more appropriate than the existing procedures for evaluating the effects of microbiologically influenced chemical attack on cement-solidified LLW. Groups of microorganisms indigenous to LLW disposal sites are being employed that can metabolically convert organic and inorganic substrates into organic and mineral acids. Such acids aggressively react with cement and can ultimately lead to structural failure. Results over the past year on the application of mechanisms inherent in microbially influenced degradation of cement-based material are the focus of the annual report. Data-validated evidence of the potential for microbially influenced deterioration of cement-solidified LLW and subsequent release of radionuclides has been developed during this study.

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55 p.

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INIS; OSTI as TI95017307

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  • Other Information: PBD: Aug 1995

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  • Other: TI95017307
  • Report No.: NUREG/CR--6188-Vol.2
  • Report No.: INEL--95/0153-Vol.2
  • Grant Number: AC07-76ID01570
  • DOI: 10.2172/101310 | External Link
  • Office of Scientific & Technical Information Report Number: 101310
  • Archival Resource Key: ark:/67531/metadc619185

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  • August 1, 1995

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  • June 16, 2015, 7:43 a.m.

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  • April 22, 2016, 6:15 p.m.

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Rogers, R.D.; Hamilton, M.A.; Veeh, R.H. & McConnell, J.W. Jr. Microbial degradation of low-level radioactive waste. Volume 2, Annual report for FY 1994, report, August 1, 1995; Washington D.C.. (digital.library.unt.edu/ark:/67531/metadc619185/: accessed September 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.