Carbon cycling in deep groundwaters and in manmade geological sites

Merja Itävaara

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsScientific

Abstract

Deep bedrock groundwaters contain very low amount of organic matter and microbes utilize mainly methane and carbon dioxide as C source. Organic matter originating from the surface or from construction materials and low radioactive wastes may also be C sources for microorganisms and accelerate their activity. Gas generation potential of organic compounds is dependant on their chemical and physical structure which can be determined by biodegradability tests. In 1997 a large scale gas generation experiment was started to study biodegradation of low radioactive wastes and gases generated in real conditions. Experimental design, results and future prospects will be discussed. In addition an overview of present research activities concerning molecular microbial characterization of the Olkiluoto and other bedrock aquifers of Finland will be discussed.
Original languageEnglish
Title of host publicationIGD-TP Exchange Forum Nº4
Subtitle of host publicationPresentations and Outcomes
PublisherEuropean Commission EC
ChapterWG5
Pages35
Publication statusPublished - 2013
MoE publication typeNot Eligible
Event4th Exchange Forum of the Implementing Geological Disposal of Radioactive Waste - Technology Platform, IGD-TP - Prague, Czech Republic
Duration: 29 Oct 201330 Oct 2013

Conference

Conference4th Exchange Forum of the Implementing Geological Disposal of Radioactive Waste - Technology Platform, IGD-TP
CountryCzech Republic
CityPrague
Period29/10/1330/10/13

Fingerprint

radioactive waste
groundwater
bedrock
carbon
gas
organic matter
future prospect
experimental design
organic compound
biodegradation
carbon dioxide
microorganism
methane
aquifer
experiment
chemical
biodegradability
test

Keywords

  • carbon cycling
  • organic matter
  • radioactive wastes
  • gas generation
  • deep groundwater

Cite this

Itävaara, M. (2013). Carbon cycling in deep groundwaters and in manmade geological sites. In IGD-TP Exchange Forum Nº4: Presentations and Outcomes (pp. 35). European Commission EC.
Itävaara, Merja. / Carbon cycling in deep groundwaters and in manmade geological sites. IGD-TP Exchange Forum Nº4: Presentations and Outcomes. European Commission EC, 2013. pp. 35
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Itävaara, M 2013, Carbon cycling in deep groundwaters and in manmade geological sites. in IGD-TP Exchange Forum Nº4: Presentations and Outcomes. European Commission EC, pp. 35, 4th Exchange Forum of the Implementing Geological Disposal of Radioactive Waste - Technology Platform, IGD-TP, Prague, Czech Republic, 29/10/13.

Carbon cycling in deep groundwaters and in manmade geological sites. / Itävaara, Merja.

IGD-TP Exchange Forum Nº4: Presentations and Outcomes. European Commission EC, 2013. p. 35.

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsScientific

TY - CHAP

T1 - Carbon cycling in deep groundwaters and in manmade geological sites

AU - Itävaara, Merja

N1 - 7th Euratom Framework Programme: SecIGD2 Project

PY - 2013

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AB - Deep bedrock groundwaters contain very low amount of organic matter and microbes utilize mainly methane and carbon dioxide as C source. Organic matter originating from the surface or from construction materials and low radioactive wastes may also be C sources for microorganisms and accelerate their activity. Gas generation potential of organic compounds is dependant on their chemical and physical structure which can be determined by biodegradability tests. In 1997 a large scale gas generation experiment was started to study biodegradation of low radioactive wastes and gases generated in real conditions. Experimental design, results and future prospects will be discussed. In addition an overview of present research activities concerning molecular microbial characterization of the Olkiluoto and other bedrock aquifers of Finland will be discussed.

KW - carbon cycling

KW - organic matter

KW - radioactive wastes

KW - gas generation

KW - deep groundwater

M3 - Conference abstract in proceedings

SP - 35

BT - IGD-TP Exchange Forum Nº4

PB - European Commission EC

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Itävaara M. Carbon cycling in deep groundwaters and in manmade geological sites. In IGD-TP Exchange Forum Nº4: Presentations and Outcomes. European Commission EC. 2013. p. 35