Abstract
sheets, clothing, tools, and towels used during maintenance work. This miscellaneous maintenance
waste is compacted in steel drums and deposited 60‐110 meters below ground level. The Gas
Generation Experiment GGE has been established in 1997 to examine gas generation from LLW in
TVO's final disposal repository for operational LLW and ILW in Olkiluoto, Finland. Since 1999 gas
generation has been rather constant and released gas was mainly composed of methane. The results
obtained by qPCR also revealed that methanogens formed major part of the microbial population in
GGE. In addition to anaerobic degradation of organic matter there are also other processes that
influence the gas formation, such as corrosion of steel and sulphate reduction by bacteria.
Considerable heterogeneity in chemical conditions has been detected in different locations of GGE
which can be also seen as differences in microbiological activity and diversity.
| Original language | English |
|---|---|
| Title of host publication | MIND (the Microbiology In Nuclear waste Disposal) Project Annual Meeting 1. Extended Abstracts |
| Subtitle of host publication | Book of Abstracts |
| Publisher | European Union |
| Pages | 39-42 |
| Publication status | Published - 2016 |
| Event | Microbiology In Nuclear waste Disposal, Project Annual Meeting 1 - Granada, Spain Duration: 1 Apr 2016 → 2 Apr 2016 |
Conference
| Conference | Microbiology In Nuclear waste Disposal, Project Annual Meeting 1 |
|---|---|
| Abbreviated title | MIND |
| Country | Spain |
| City | Granada |
| Period | 1/04/16 → 2/04/16 |
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Keywords
- nuclear waste
- LLW
- biodegradability
Cite this
}
Microbial degradation of LLW under repository conditions- case TVO. / Vikman, Minna (Corresponding author); Marjamaa, Kaisa; Itävaara, Merja.
MIND (the Microbiology In Nuclear waste Disposal) Project Annual Meeting 1. Extended Abstracts: Book of Abstracts. European Union, 2016. p. 39-42.Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Scientific
TY - CHAP
T1 - Microbial degradation of LLW under repository conditions- case TVO
AU - Vikman, Minna
AU - Marjamaa, Kaisa
AU - Itävaara, Merja
N1 - Project code: 102432
PY - 2016
Y1 - 2016
N2 - In Finland major part of the low level radioactive waste (LLW) is composed of protective plasticsheets, clothing, tools, and towels used during maintenance work. This miscellaneous maintenancewaste is compacted in steel drums and deposited 60‐110 meters below ground level. The GasGeneration Experiment GGE has been established in 1997 to examine gas generation from LLW inTVO's final disposal repository for operational LLW and ILW in Olkiluoto, Finland. Since 1999 gasgeneration has been rather constant and released gas was mainly composed of methane. The resultsobtained by qPCR also revealed that methanogens formed major part of the microbial population inGGE. In addition to anaerobic degradation of organic matter there are also other processes thatinfluence the gas formation, such as corrosion of steel and sulphate reduction by bacteria.Considerable heterogeneity in chemical conditions has been detected in different locations of GGEwhich can be also seen as differences in microbiological activity and diversity.
AB - In Finland major part of the low level radioactive waste (LLW) is composed of protective plasticsheets, clothing, tools, and towels used during maintenance work. This miscellaneous maintenancewaste is compacted in steel drums and deposited 60‐110 meters below ground level. The GasGeneration Experiment GGE has been established in 1997 to examine gas generation from LLW inTVO's final disposal repository for operational LLW and ILW in Olkiluoto, Finland. Since 1999 gasgeneration has been rather constant and released gas was mainly composed of methane. The resultsobtained by qPCR also revealed that methanogens formed major part of the microbial population inGGE. In addition to anaerobic degradation of organic matter there are also other processes thatinfluence the gas formation, such as corrosion of steel and sulphate reduction by bacteria.Considerable heterogeneity in chemical conditions has been detected in different locations of GGEwhich can be also seen as differences in microbiological activity and diversity.
KW - nuclear waste
KW - LLW
KW - biodegradability
M3 - Conference abstract in proceedings
SP - 39
EP - 42
BT - MIND (the Microbiology In Nuclear waste Disposal) Project Annual Meeting 1. Extended Abstracts
PB - European Union
ER -