Abstract
The Gas Generation Experiment GGE is a large-scale
simulation experiment that has been established in 1997
to examine gas generation from low level radioactive
waste (LLW) in TVO's final disposal repository for
operational LLW and ILWin Olkiluoto, Finland. The
activity of microbes is related to biodegradation of
organic waste, corrosion and gas generation in GGE. The
aim of this study was to evaluate microbial diversity and
activity in more detail using advanced molecular
techniques.
The molecular fingerprinting showed that microbial
diversity has changed significantly during the years and
varied in different locations in GGE. The highest
microbial activity was evaluated in the drums containing
organic waste composing mostly biodegradable
cellulose-based materials. Sulphate reducers, which has
been claimed to be involved in microbial corrosion were
detected in all the samples.
| Original language | English |
|---|---|
| Publication status | Published - 2014 |
Keywords
- geodisposal
- low level radioactive waste
- biodegradation
- microbial diversity