Article (Scientific journals)
Accelerated low water corrosion: the microbial sulfur cycle in microcosm
Smith, Martin; Bardiau, Marjorie; Brennan, Richard et al.
2019In npj Materials Degradation, 3 (37)
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Abstract :
[en] Accelerated low water corrosion is a form of marine steel corrosion caused by bacterial activity. It has a global spread and is potentially responsible for billions of pounds of damage. We have determined in detail both the chemistry of corrosion products and the associated microbiology at a UK site. The corrosion products form a layered structure with iron sulfides at the steel surface and iron oxides and sulfates in contact with water. The iron sulfides are formed by reaction of steel with hydrogen sulfide formed by sulfate-reducing bacteria and are oxidised through a series of sulfur oxidation states by sulfide-oxidising bacteria, forming acid at all stages and encompassing the whole of the bacterial sulfur cycle. The bacteria involved are endemic in anoxic bed sediment, and the process is a response to the presence of steel as an electron donor, and the generation of anoxic microenvironments within corrosion products.
Disciplines :
Microbiology
Author, co-author :
Smith, Martin
Bardiau, Marjorie  ;  Université de Liège - ULiège > ULiège Library : Sciences de la Santé
Brennan, Richard
Burgess, Heidi
Caplin, Jonathan
Ray, Santanu
Urios, Thomas
Language :
English
Title :
Accelerated low water corrosion: the microbial sulfur cycle in microcosm
Publication date :
2019
Journal title :
npj Materials Degradation
eISSN :
2397-2106
Publisher :
Nature Publishing Group, United Kingdom
Volume :
3
Issue :
37
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 10 November 2020

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