Corrosion of Mild Steel by Sulphate-reducing Bacteria: An Alternative Mechanism

Booth, G. H.; Elford, Lynette; Wakerley, D. S.

doi:10.1179/000705968798326073

Cited by 79 publications

(35 citation statements)

References 9 publications

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“…Newman et al (1991) found the stimulatory effect of FeS to be small upon closer inspection and stated that the increased cathodic surface area provided by FeS was probably more important than its catalytic properties (81). Indeed, corrosion by FeS has so far been reported only for chemically prepared fine suspensions of the minerals (77)(78)(79)120). Venzlaff et al (2012) found the corrosive effect of FeS to be negligible in compact crusts formed by marine lithotrophic SRB (86).…”

Section: The Role Of Fes In Iron Corrosionmentioning

confidence: 99%

“…In the late 1960s and early 1970s, several authors demonstrated that such biogenic iron sulfides accelerated corrosion when deposited on the metal (77)(78)(79). Interestingly, sustained corrosion by iron sulfides required the presence of active populations of SRB.…”

Section: Srb: Long-known Key Players In Anaerobic Iron Corrosionmentioning

confidence: 99%

“…It has been reported that crystalline iron sulfides stimulate iron corrosion in sterile, sulfide-free incubations (77,79,120,121). This is most likely due to catalysis by FeS of the chemical (abiotic) reduction of protons (Fig.…”

Section: The Role Of Fes In Iron Corrosionmentioning

confidence: 99%

“…4, reaction E). The role of FeS in SRBinduced corrosion was emphasized by several authors (77,78,80), but the exact mechanisms are apparently complex and insufficiently understood (51). Newman et al (1991) found the stimulatory effect of FeS to be small upon closer inspection and stated that the increased cathodic surface area provided by FeS was probably more important than its catalytic properties (81).…”

Section: The Role Of Fes In Iron Corrosionmentioning

confidence: 99%

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

Enning

Garrelfs

2014

Appl Environ Microbiol

637

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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Section: The Role Of Fes In Iron Corrosionmentioning

confidence: 99%

Section: Srb: Long-known Key Players In Anaerobic Iron Corrosionmentioning

confidence: 99%

Section: The Role Of Fes In Iron Corrosionmentioning

confidence: 99%

Section: The Role Of Fes In Iron Corrosionmentioning

confidence: 99%

See 2 more Smart Citations

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

Enning

Garrelfs

2014

Appl Environ Microbiol

637

414

View full text Add to dashboard Cite

show abstract

“…Bryant and Laishley (1989) summarized the results obtained in the form of four models (Figure 9). Booth et al (1968) proposed an alternative mechanism for cathodic depolarization. In addition to utilization of polarising hydrogen by the bacterial hydrogenase system, there is evidence of depolarization of the cathode by iron(II)sulphide.…”

Section: The Role Of Other Hydrogenase-positive Organisms In Anaerobimentioning

confidence: 99%

Biofouling and Biocorrosion in Industrial Water Systems

Coetser

Cloete

2005

Critical Reviews in Microbiology

251

137

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Terpenoids

Sell

2006

Kirk-Othmer Encyclopedia of Chemical Technology

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The terpenoids are a family of natural products defined as being those possessing a carbon skeleton based on isoprene units. This skeletal feature stems from their biosynthesis from mevalonic acid. They serve a wide range of functions in nature including defensive resins, pheromones, antioxidants, and the pigments responsible for vision. It is not surprising therefore that they are also of considerable importance commercially and find application as flavors, fragrances, agrochemicals, and pharmaceuticals. Volatile terpenoids, such as geraniol, linalool, citronellol, citral, and the ionones and damascones, are important in the flavor and fragrance industry. Campholenic aldehyde, the precursor for a range of sandalwood odored materials, is an example of a key terpenoid intermediate. Currently, the best‐known terpenoid pharmaceutical is probably the anticancer drug paclitaxel. Industrial routes to terpenoid compounds comprise an interesting mixture of extraction from nature, partial synthesis from natural feedstocks and total synthesis from petrochemicals. In many instances, two or even all three of these possibilities exist in technocommercial equilibrium. Principal feedstocks include α‐pinene, β‐pinene, myrcene, limonene, isoprene, isobutylene, acetone, and acetylene. In this article, a brief summary of the biosynthesis of terpenoids is followed by a description of the main industrial routes to those of commercial importance. The remainder comprises a series of monographs on the commercially more important members of the family including monoterpenes, oxygenated monoterpenoids, sesquiterpenoids, diterpenoids, triterpenoids, carotenoids, and terpenoid degradation products, such as the ionones, damascones, and ambergris chemicals.

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Corrosion of Mild Steel by Sulphate-reducing Bacteria: An Alternative Mechanism

Cited by 79 publications

References 9 publications

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

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

Biofouling and Biocorrosion in Industrial Water Systems

Terpenoids

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