Accelerated low water corrosion

the microbial sulfur cycle in microcosm

Martin Smith, Richard Brennan, Heidi Burgess, Marjorie Bardiau, Jon Caplin, Santanu Ray, Thomas Urios

Research output: Contribution to journalArticleResearchpeer-review

Abstract

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.
Original languageEnglish
Article number37
Journalnpj Materials Degradation
Volume3
DOIs
Publication statusPublished - 25 Oct 2019

Fingerprint

sulfur cycle
Sulfur
microcosm
corrosion
Steel
Sulfides
Corrosion
Bacteria
steel
Water
iron sulfide
Sulfates
Iron
Microbiology
water
Hydrogen Sulfide
Steel corrosion
Hydrogen sulfide
Iron oxides
bacterium

Bibliographical note

This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

Keywords

  • microbially influenced corrosion
  • sulphate reducing bacteria
  • sulphur oxidising bacteria
  • metagenomics
  • sulphur cycle
  • Mineralogy

Cite this

Smith, M., Brennan, R., Burgess, H., Bardiau, M., Caplin, J., Ray, S., & Urios, T. (2019). Accelerated low water corrosion: the microbial sulfur cycle in microcosm. npj Materials Degradation, 3, [37]. https://doi.org/10.1038/s41529-019-0099-9
Smith, Martin ; Brennan, Richard ; Burgess, Heidi ; Bardiau, Marjorie ; Caplin, Jon ; Ray, Santanu ; Urios, Thomas. / Accelerated low water corrosion : the microbial sulfur cycle in microcosm. In: npj Materials Degradation. 2019 ; Vol. 3.
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abstract = "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.",
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Smith, M, Brennan, R, Burgess, H, Bardiau, M, Caplin, J, Ray, S & Urios, T 2019, 'Accelerated low water corrosion: the microbial sulfur cycle in microcosm', npj Materials Degradation, vol. 3, 37. https://doi.org/10.1038/s41529-019-0099-9

Accelerated low water corrosion : the microbial sulfur cycle in microcosm. / Smith, Martin; Brennan, Richard; Burgess, Heidi; Bardiau, Marjorie; Caplin, Jon; Ray, Santanu; Urios, Thomas.

In: npj Materials Degradation, Vol. 3, 37, 25.10.2019.

Research output: Contribution to journalArticleResearchpeer-review

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