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Filtration–UV irradiation as an option for mitigating the risk of microbiologically influenced corrosion of subsea construction alloys in seawater
•Biofilms ennobled Ecorr of offshore construction alloys in natural seawater.•Filtration–UV irradiation delayed biofilm growth and activity on alloys.•Localized corrosion in seawater was lowered by the use of filtration–UV irradiation.•Biofilm community composition was affected by both substratum an...
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Published in: | Corrosion science 2014-02, Vol.79, p.89-99 |
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creator | Machuca, Laura L. Jeffrey, Robert Bailey, Stuart I. Gubner, Rolf Watkin, Elizabeth L.J. Ginige, Maneesha P. Kaksonen, Anna H. Heidersbach, Krista |
description | •Biofilms ennobled Ecorr of offshore construction alloys in natural seawater.•Filtration–UV irradiation delayed biofilm growth and activity on alloys.•Localized corrosion in seawater was lowered by the use of filtration–UV irradiation.•Biofilm community composition was affected by both substratum and seawater treatment.•Filtration–UV irradiation can be an ecofriendly practice for protection against MIC.
The effect of filtration–UV irradiation of seawater on the biofilm activity on several offshore structural alloys was evaluated in a continuous flow system over 90days. Biofilms ennobled the electrode potential by +400 to 500mV within a few days of exposure to raw untreated seawater. Filtration–UV irradiation of the seawater delayed the ennoblement of the steels for up to 40days and lowered localized corrosion rates in susceptible alloys. Ennobling biofilms were composed of microbial cells, diatoms and extracellular polymeric substances and the bacterial community in biofilms was affected by both the alloy composition and seawater treatment. |
doi_str_mv | 10.1016/j.corsci.2013.10.030 |
format | article |
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The effect of filtration–UV irradiation of seawater on the biofilm activity on several offshore structural alloys was evaluated in a continuous flow system over 90days. Biofilms ennobled the electrode potential by +400 to 500mV within a few days of exposure to raw untreated seawater. Filtration–UV irradiation of the seawater delayed the ennoblement of the steels for up to 40days and lowered localized corrosion rates in susceptible alloys. Ennobling biofilms were composed of microbial cells, diatoms and extracellular polymeric substances and the bacterial community in biofilms was affected by both the alloy composition and seawater treatment.</description><identifier>ISSN: 0010-938X</identifier><identifier>EISSN: 1879-0496</identifier><identifier>DOI: 10.1016/j.corsci.2013.10.030</identifier><identifier>CODEN: CRRSAA</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>A. Alloy ; A. Steel ; Alloys ; Applied sciences ; B. SEM ; Bacillariophyceae ; Bacteria ; Biofilms ; C. Microbiological corrosion ; C. Pitting corrosion ; Corrosion ; Corrosion environments ; Electrode potentials ; Exact sciences and technology ; Irradiation ; Metals. Metallurgy ; Risk ; Sea water</subject><ispartof>Corrosion science, 2014-02, Vol.79, p.89-99</ispartof><rights>2013 Elsevier Ltd</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c514t-5ca01e4a2f9958b0d85c1fa6c42255a7b75c4c368e2bf2be626be5e57f0532083</citedby><cites>FETCH-LOGICAL-c514t-5ca01e4a2f9958b0d85c1fa6c42255a7b75c4c368e2bf2be626be5e57f0532083</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=28094003$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Machuca, Laura L.</creatorcontrib><creatorcontrib>Jeffrey, Robert</creatorcontrib><creatorcontrib>Bailey, Stuart I.</creatorcontrib><creatorcontrib>Gubner, Rolf</creatorcontrib><creatorcontrib>Watkin, Elizabeth L.J.</creatorcontrib><creatorcontrib>Ginige, Maneesha P.</creatorcontrib><creatorcontrib>Kaksonen, Anna H.</creatorcontrib><creatorcontrib>Heidersbach, Krista</creatorcontrib><title>Filtration–UV irradiation as an option for mitigating the risk of microbiologically influenced corrosion of subsea construction alloys in seawater</title><title>Corrosion science</title><description>•Biofilms ennobled Ecorr of offshore construction alloys in natural seawater.•Filtration–UV irradiation delayed biofilm growth and activity on alloys.•Localized corrosion in seawater was lowered by the use of filtration–UV irradiation.•Biofilm community composition was affected by both substratum and seawater treatment.•Filtration–UV irradiation can be an ecofriendly practice for protection against MIC.
The effect of filtration–UV irradiation of seawater on the biofilm activity on several offshore structural alloys was evaluated in a continuous flow system over 90days. Biofilms ennobled the electrode potential by +400 to 500mV within a few days of exposure to raw untreated seawater. Filtration–UV irradiation of the seawater delayed the ennoblement of the steels for up to 40days and lowered localized corrosion rates in susceptible alloys. Ennobling biofilms were composed of microbial cells, diatoms and extracellular polymeric substances and the bacterial community in biofilms was affected by both the alloy composition and seawater treatment.</description><subject>A. Alloy</subject><subject>A. Steel</subject><subject>Alloys</subject><subject>Applied sciences</subject><subject>B. SEM</subject><subject>Bacillariophyceae</subject><subject>Bacteria</subject><subject>Biofilms</subject><subject>C. Microbiological corrosion</subject><subject>C. Pitting corrosion</subject><subject>Corrosion</subject><subject>Corrosion environments</subject><subject>Electrode potentials</subject><subject>Exact sciences and technology</subject><subject>Irradiation</subject><subject>Metals. 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The effect of filtration–UV irradiation of seawater on the biofilm activity on several offshore structural alloys was evaluated in a continuous flow system over 90days. Biofilms ennobled the electrode potential by +400 to 500mV within a few days of exposure to raw untreated seawater. Filtration–UV irradiation of the seawater delayed the ennoblement of the steels for up to 40days and lowered localized corrosion rates in susceptible alloys. Ennobling biofilms were composed of microbial cells, diatoms and extracellular polymeric substances and the bacterial community in biofilms was affected by both the alloy composition and seawater treatment.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.corsci.2013.10.030</doi><tpages>11</tpages><oa>free_for_read</oa></addata></record> |
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subjects | A. Alloy A. Steel Alloys Applied sciences B. SEM Bacillariophyceae Bacteria Biofilms C. Microbiological corrosion C. Pitting corrosion Corrosion Corrosion environments Electrode potentials Exact sciences and technology Irradiation Metals. Metallurgy Risk Sea water |
title | Filtration–UV irradiation as an option for mitigating the risk of microbiologically influenced corrosion of subsea construction alloys in seawater |
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