Experimental investigation of the impact of microbial activity on the corrosion resistance of candidate container materials
Certain environmental factors such as temperature, pH, radiation, nutrient supply and, in particular, lack of water could severely limit the microbial activity in repositories. Most microorganisms require water activities above 0.9 to support active metabolism which corresponds to 60-80% soil satura...
Saved in:
Published in | Sulphur-Assisted Corrosion in Nuclear Disposal Systems: (EFC 59) pp. 137 - 151 |
---|---|
Main Authors | , , , |
Format | Book Chapter |
Language | English |
Published |
CRC Press
2011
Maney Publishing |
Edition | 1 |
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | Certain environmental factors such as temperature, pH, radiation, nutrient supply and, in particular, lack of water could severely limit the microbial activity in repositories. Most microorganisms require water activities above 0.9 to support active metabolism which corresponds to 60-80% soil saturation. Even though microbial activity in the repository could be expected to be low, microbial activity inside the repository cannot be discarded altogether. Some microbial cells, especially those far away from the container, could resist restrictive conditions as dormant bacteria, and move closer to the container when the environmental conditions are less severe. The extent of the corrosion damage was significantly higher in samples tested in the aerated sterile media. |
---|---|
ISBN: | 1907975179 9781907975172 |
DOI: | 10.1201/9781003059448-8 |