Microbiologically Influenced Corrosion of Carbon Steel Beneath a Deposit in CO(2)-Saturated Formation Water Containing Desulfotomaculum nigrificans

The corrosion mechanism of carbon steel under deposit in the presence of sulfate reducing bacterium (SRB) Desulfotomaculum nigrificans was studied using surface analysis, weight loss and electrochemical measurements. Results showed that both the general corrosion and localized corrosion were conside...

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Autores principales: Liu, Hongwei, Meng, Guozhuo, Li, Weihua, Gu, Tingyue, Liu, Hongfang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2019
Materias:
Microbiology
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6581712/
https://www.ncbi.nlm.nih.gov/pubmed/31244809
http://dx.doi.org/10.3389/fmicb.2019.01298
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author Liu, Hongwei
Meng, Guozhuo
Li, Weihua
Gu, Tingyue
Liu, Hongfang
author_facet Liu, Hongwei
Meng, Guozhuo
Li, Weihua
Gu, Tingyue
Liu, Hongfang
author_sort Liu, Hongwei
collection PubMed
description The corrosion mechanism of carbon steel under deposit in the presence of sulfate reducing bacterium (SRB) Desulfotomaculum nigrificans was studied using surface analysis, weight loss and electrochemical measurements. Results showed that both the general corrosion and localized corrosion were considerably promoted by SRB under deposit. The corrosion rate of steel in the presence of SRB was approximately 6 times of that for the control according to the weight loss measurements. The maximum corrosion pit depth in the presence of SRB was approximately 7.7 times of that of the control. Both the anodic and cathodic reactions were significantly accelerated by SRB. A galvanic effect in the presence of SRB due to the heterogeneous biofilm led to serious localized corrosion.
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spelling pubmed-65817122019-06-26 Microbiologically Influenced Corrosion of Carbon Steel Beneath a Deposit in CO(2)-Saturated Formation Water Containing Desulfotomaculum nigrificans Liu, Hongwei Meng, Guozhuo Li, Weihua Gu, Tingyue Liu, Hongfang Front Microbiol Microbiology The corrosion mechanism of carbon steel under deposit in the presence of sulfate reducing bacterium (SRB) Desulfotomaculum nigrificans was studied using surface analysis, weight loss and electrochemical measurements. Results showed that both the general corrosion and localized corrosion were considerably promoted by SRB under deposit. The corrosion rate of steel in the presence of SRB was approximately 6 times of that for the control according to the weight loss measurements. The maximum corrosion pit depth in the presence of SRB was approximately 7.7 times of that of the control. Both the anodic and cathodic reactions were significantly accelerated by SRB. A galvanic effect in the presence of SRB due to the heterogeneous biofilm led to serious localized corrosion. Frontiers Media S.A. 2019-06-12 /pmc/articles/PMC6581712/ /pubmed/31244809 http://dx.doi.org/10.3389/fmicb.2019.01298 Text en Copyright © 2019 Liu, Meng, Li, Gu and Liu. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Microbiology
Liu, Hongwei
Meng, Guozhuo
Li, Weihua
Gu, Tingyue
Liu, Hongfang
Microbiologically Influenced Corrosion of Carbon Steel Beneath a Deposit in CO(2)-Saturated Formation Water Containing Desulfotomaculum nigrificans
title Microbiologically Influenced Corrosion of Carbon Steel Beneath a Deposit in CO(2)-Saturated Formation Water Containing Desulfotomaculum nigrificans
title_full Microbiologically Influenced Corrosion of Carbon Steel Beneath a Deposit in CO(2)-Saturated Formation Water Containing Desulfotomaculum nigrificans
title_fullStr Microbiologically Influenced Corrosion of Carbon Steel Beneath a Deposit in CO(2)-Saturated Formation Water Containing Desulfotomaculum nigrificans
title_full_unstemmed Microbiologically Influenced Corrosion of Carbon Steel Beneath a Deposit in CO(2)-Saturated Formation Water Containing Desulfotomaculum nigrificans
title_short Microbiologically Influenced Corrosion of Carbon Steel Beneath a Deposit in CO(2)-Saturated Formation Water Containing Desulfotomaculum nigrificans
title_sort microbiologically influenced corrosion of carbon steel beneath a deposit in co(2)-saturated formation water containing desulfotomaculum nigrificans
topic Microbiology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6581712/
https://www.ncbi.nlm.nih.gov/pubmed/31244809
http://dx.doi.org/10.3389/fmicb.2019.01298
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