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Title: Initial studies to assess microbial impacts on nuclear waste disposal

Conference ·
OSTI ID:224254
; ;  [1];  [2]
  1. Lawrence Livermore National Lab., CA (United States)
  2. Univ. of California, Berkeley, CA (United States). Dept. of Geology and Geophysics

The impacts of the native and introduced bacteria on the performance of geologic nuclear waste disposal facilities should be evaluated because these bacteria could promote corrosion of repository components and alteration of chemical and hydrological properties of the surrounding engineered and rock barriers. As a first step towards investigating these potentialities, native and introduced bacteria obtained from post-construction Yucca Mountain (YM) rock were isolated under varying conditions, including elevated temperature, low nutrient availability, and the absence of available oxygen. Individual isolates are being screened for activities associated with microbially induced corrosion of metals (MIC). Preliminary determination of growth rates of whole YM microbial communities under varying conditions was also undertaken.

Research Organization:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
W-7405-ENG-48
OSTI ID:
224254
Report Number(s):
UCRL-JC-122587; CONF-960421-34; ON: DE96008435; TRN: 96:012785
Resource Relation:
Conference: 7. annual international high-level radioactive waste management conference, Las Vegas, NV (United States), 29 Apr - 3 May 1996; Other Information: PBD: 20 Feb 1996
Country of Publication:
United States
Language:
English