Anaerobic microbial corrosion of carbon steel under conditions relevant for deep geological repository of nuclear waste

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F21%3A43923134" target="_blank" >RIV/60461373:22310/21:43923134 - isvavai.cz</a>
Alternative codes found
RIV/26722445:_____/21:N0000011 RIV/00216208:11310/21:10439415 RIV/46747885:24220/21:00008940 RIV/46747885:24620/21:00008940
Result on the web
<a href="https://www.journals.elsevier.com/science-of-the-total-environment" target="_blank" >https://www.journals.elsevier.com/science-of-the-total-environment</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.scitotenv.2021.149539" target="_blank" >10.1016/j.scitotenv.2021.149539</a>

Result language
angličtina
Original language name
Anaerobic microbial corrosion of carbon steel under conditions relevant for deep geological repository of nuclear waste
Original language description
We examined microbial corrosion of carbon steel in synthetic bentonite pore water inoculated with natural underground water containing microorganisms over a period of 780-days under sterile and anaerobic conditions. Corrosion behaviour was determined using the mass loss method, SEM-EDS analysis and Raman spectroscopy, while qualitative and quantitative changes in the microbial community were analysed using molecular biological tools (16S rDNA amplicon sequencing and qPCR analysis, respectively). Corrosion rates were signifi-cantly higher in the biotic environment (compared with an abiotic environment), with significant localisation of corrosion attacks of up to 1 mm arising within 12-months. Nitrate reducing bacteria, such as Pseudomonas, Brevundimonas and Methyloversatilis, dominated the microbial consortium, the high abundance of Methyloversatilis correlating with periods of highest localised corrosion penetrations, suggesting that this bacterium plays an important role in microbially influenced corrosion. Our results indicate that nitrate-reducing bacteria could represent a potential threat to waste canisters under nuclear repository conditions. (c) 2021 Elsevier B.V. All rights reserved.
Czech name
—
Czech description
—

Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20501 - Materials engineering

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
N - Vyzkumna aktivita podporovana z neverejnych zdroju

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)