Microbial diversity during biodegradation of low level radioactive waste

Research output: Contribution to conferenceConference articleScientific

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 languageEnglish
Publication statusPublished - 2014

Fingerprint

radioactive waste
biodegradation
corrosion
gas
repository
microbial activity
cellulose
experiment
sulfate
simulation
organic waste
material

Keywords

  • geodisposal
  • low level radioactive waste
  • biodegradation
  • microbial diversity

Cite this

@conference{2d431c16996b46f4aae97cef11edc17d,
title = "Microbial diversity during biodegradation of low level radioactive waste",
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.",
keywords = "geodisposal, low level radioactive waste, biodegradation, microbial diversity",
author = "Minna Vikman and Kaisa Marjamaa and Hanna Miettinen and Merja It{\"a}vaara",
note = "Project code: 83722",
year = "2014",
language = "English",

}

Microbial diversity during biodegradation of low level radioactive waste. / Vikman, Minna; Marjamaa, Kaisa; Miettinen, Hanna; Itävaara, Merja.

2014.

Research output: Contribution to conferenceConference articleScientific

TY - CONF

T1 - Microbial diversity during biodegradation of low level radioactive waste

AU - Vikman, Minna

AU - Marjamaa, Kaisa

AU - Miettinen, Hanna

AU - Itävaara, Merja

N1 - Project code: 83722

PY - 2014

Y1 - 2014

N2 - 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.

AB - 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.

KW - geodisposal

KW - low level radioactive waste

KW - biodegradation

KW - microbial diversity

M3 - Conference article

ER -