Microbiologically influenced corrosion of underground pipelines under the disbonded coatings

Li, Seon Yeob; Kim, Young Geun; Jeon, K. S.; Kho, Young Tai

doi:10.1007/bf03028224

Cited by 65 publications

(29 citation statements)

References 8 publications

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“…First, iron in anoxic environments containing sulfate, i.e., the electron acceptor of SRB, is particularly prone to microbial corrosion ( Fig. 1) (37,53,54). Second, SRB, or their characteristic corrosion product FeS, are ubiquitously found on anaerobically corroded iron (54)(55)(56)(57)(58)(59).…”

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“…1) (37,53,54). Second, SRB, or their characteristic corrosion product FeS, are ubiquitously found on anaerobically corroded iron (54)(55)(56)(57)(58)(59). Third, with corrosion rates of up to 0.9 mm Fe 0 year Ϫ1 (35 mils per year [mpy]), pure laboratory-grown SRB cultures corrode iron to an extent (12,60,61) that matches even severe cases of corrosion in the field.…”

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Corrosion of Iron by Sulfate-Reducing Bacteria: New Views of an Old Problem

Enning

Garrelfs

2014

Appl Environ Microbiol

660

414

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About a century ago, researchers first recognized a connection between the activity of environmental microorganisms and cases of anaerobic iron corrosion. Since then, such microbially influenced corrosion (MIC) has gained prominence and its technical and economic implications are now widely recognized. Under anoxic conditions (e.g., in oil and gas pipelines), sulfate-reducing bacteria (SRB) are commonly considered the main culprits of MIC. This perception largely stems from three recurrent observations. First, anoxic sulfate-rich environments (e.g., anoxic seawater) are particularly corrosive. Second, SRB and their characteristic corrosion product iron sulfide are ubiquitously associated with anaerobic corrosion damage, and third, no other physiological group produces comparably severe corrosion damage in laboratory-grown pure cultures. However, there remain many open questions as to the underlying mechanisms and their relative contributions to corrosion. On the one hand, SRB damage iron constructions indirectly through a corrosive chemical agent, hydrogen sulfide, formed by the organisms as a dissimilatory product from sulfate reduction with organic compounds or hydrogen ("chemical microbially influenced corrosion"; CMIC). On the other hand, certain SRB can also attack iron via withdrawal of electrons ("electrical microbially influenced corrosion"; EMIC), viz., directly by metabolic coupling. Corrosion of iron by SRB is typically associated with the formation of iron sulfides (FeS) which, paradoxically, may reduce corrosion in some cases while they increase it in others. This brief review traces the historical twists in the perception of SRB-induced corrosion, considering the presently most plausible explanations as well as possible early misconceptions in the understanding of severe corrosion in anoxic, sulfate-rich environments. E ver since its first production roughly 4,000 years ago, iron has played a central role in human society due to its excellent mechanical properties and the abundance of its ores. Today, iron is used in much larger quantities than any other metallic material (1) and is indispensable in infrastructure, transportation, and manufacturing. A major drawback is the susceptibility of iron to corrosion. Corrosion of iron and other metals causes enormous economic damage. Across all industrial sectors, the inferred costs of metal corrosion have been estimated to range between 2% and 3% of gross domestic product (GDP) in developed countries (2, 3). These costs are to a large extent caused by corrosion of iron, due to its abundant use and particular susceptibility to oxidative damage. Estimates of the costs attributable to biocorrosion of iron lack a computed basis so that they vary widely, and definite numbers cannot be given with certainty. Still, microbially influenced corrosion (MIC) probably accounts for a significant fraction of the total costs (4-7), and, due to its effects on important infrastructure in the energy industry (such as oil and gas pipelines), costs in the range of billions of...

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Corrosion of Iron by Sulfate-Reducing Bacteria: New Views of an Old Problem

Enning

Garrelfs

2014

Appl Environ Microbiol

660

414

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“…Elektrochemische Korrosion läuft überwie-gend unter aeroben Bedingungen ab, während mikrobiell induzierte Korrosion (MIC) insbesondere auch unter anaeroben Bedingungen auftritt. Zur Korrosionsvermeidung (Hamilton 1985;Heitz et al 1996;Heitz und Sand 1997;Li et al 2000) wurden zwar beständigere Werkstoffe und Schutzmaßnahmen entwickelt (Sand 2001;Stadler et al 2008), dennoch sind Schäden nach wie vor von großer wirtschaftlicher Bedeutung. Dies trifft besonders für geothermische Anlagen zu, bei denen aus Kostengründen häu-fig Schwarzstahl verwendet wird.…”

Section: Mikrobiell Induzierte Korrosion (Mic) In Geothermischen Anlagenunclassified

Störungen des Betriebs geothermischer Anlagen durch mikrobielle Stoffwechselprozesse und Erfolg von Gegenmaßnahmen

et al. 2016

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“…Many studies have shown that a high degree of sulphate-reducing bacteria (SRB)-induced corrosion occurs under most disbonded coatings [17][18][19][20][21]. The electrolyte trapped under a disbonded coating provides a suitable environment in which such microorganisms can exist because the essential components for their metabolism are present in this environment: a carbon source, water, an electron donor, and an electron acceptor [17].…”

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confidence: 99%