Aerobic and Anaerobic Iron Corrosion in Water Mains

Kühr, C. A. H. von Wolzogen; Vlugt, L. S. van der

doi:10.1002/j.1551-8833.1953.tb15947.x

Cited by 34 publications

(38 citation statements)

References 8 publications

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“…The first MIC case was identified in 1934, where sulfate-reducing bacteria (SRB) resulted in the failure of cast iron pipes buried in anaerobic soil [78]. Since this observation, numerous works have been written concerning the effects of bacteria [79].…”

Section: Bacteriamentioning

confidence: 99%

Methods to Evaluate Corrosion in Buried Steel Structures: A Review

Arriba-Rodriguez

Balsera

Fernández

et al. 2018

Metals

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Around the world, there are thousands of metal structures completely or partially buried in the soil. The main concern in their design is corrosion. Corrosion is a mechanism that degrades materials and causes structural failures in infrastructures, which can lead to severe effects on the environment and have direct impact on the population health. In addition, corrosion is extremely complex in the underground environment due to the variability of the local conditions. The problem is that there are many methods to its evaluation but none have been clearly established. In order to ensure the useful life of such structures, engineers usually consider an excess thickness that increases the economic cost of manufacturing and does not satisfy the principles of efficiency in the use of resources. In this paper, an extended revision of the existing methods to evaluate corrosion is carried out to optimize the design of buried steel structures according to their service life. Thus, they are classified into two categories depending on the information they provide: qualitative and quantitative methods. As a result, it is concluded that the most exhaustive methodologies for estimating soil corrosion are quantitative methods fed by non-electrochemical data based on experimental studies that measure the mass loss of structures.

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Section: Bacteriamentioning

confidence: 99%

Methods to Evaluate Corrosion in Buried Steel Structures: A Review

Arriba-Rodriguez

Balsera

Fernández

et al. 2018

Metals

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“…Some authors have proposed oxygen as the terminal electron acceptor in a more complete model considering various effects of SRB metabolism on steel surfaces in a mixed aerobic/anaerobic system [17][18][19][20][21]. The old mechanism, known as cathodic depolarization, where it was assumed that the consumption of molecular hydrogen (issued from the proton or water reduction) by SRB was the rate-limiting step [22], is now considered to be wrong because hydrogen evolution on steel is an irreversible reaction [23][24][25]. However, experimental evidence has been provided of hydrogen removal increasing corrosion [12,26].…”

Section: Phosphates Srb and Hydrogenase In Anaerobic Biocorrosionmentioning

confidence: 99%

Role of the reversible electrochemical deprotonation of phosphate species in anaerobic biocorrosion of steels

2007

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Sulphate reducing bacteria are known to play a major role in anaerobic microbiological influenced corrosion of steels, but mechanisms behind their influence are still source of debates as certain phenomena remain unexplained. Some experiments have shown that hydrogen consumption by SRB or hydrogenase increased the corrosion rate of mild steel. This was observed only in the presence of phosphate species. Here the cathodic behaviour of phosphate species on steel was studied to elucidate the role of phosphate in anaerobic corrosion of steel. Results showed: a linear correlation between reduction waves in linear voltammetry and phosphate concentration at a constant pH value; that phosphate ions induced considerable anaerobic corrosion of mild steel, which was sensitive to hydrogen concentration in the solution; and that the corrosion potential of stainless steel in presence of phosphate was shifted to more negative values as molecular hydrogen was added to the atmosphere in the reaction vessel. Phosphate species, and possibly other weak acids present in biofilms, are suggested to play an important role in the anaerobic corrosion of steels via a reversible mechanism of electrochemical deprotonation that may be accelerated by hydrogen removal.

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“…Several mechanisms suggested by so many researchers to explain corrosion behavior in terms of involvement of the SRB. [3][4][5][6][7][8][9] It was clear that SRB performed a type of anaerobic respiration in reducing sulphate to sulphide. Kuhr and Vlugt suggested that the SRB utilize the cathodic hydrogen for the dissimilatory reduction of sulphate according to the equations given below.…”

Section: Polarization Curvementioning

confidence: 99%

The Microbiologically Influenced Corrosion Behavior of C-Mn Ship Structural Steel with Different Manufacturing Processes

2003

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The MIC (Microbiologically Influenced Corrosion) of lower deck steel plates in double hull VLCC (Very Large Crude Oil Carrier) cargo tanks has been focused because of severe localized corrosion. Recently, ship companies have reported that TMCP (Thermo-mechanical Control Process) steel plates have been showed more severe localized corrosion than conventional rolled steels. In order to elucidate the MIC resistance of TMCP steels by comparison with conventional rolled steels and normalized steels in environments of double hull VLCC cargo oil tanks, various measurements and corrosion tests were performed such as measurements of polarization curves, immersion tests in bacteria culture medium.All results revealed that three types of steels have almost the same corrosion resistance in bacteria culture medium. Three kinds of steel exhibit almost the same polarization behavior and the corrosion rate. The movement of the open-circuit potential first towards more negative values and later to more positive values is a phenomenon common to all kinds of specimens. This phenomenon resulted from an initial stimulation of the anodes by sulphide ions produced by the bacteria from the reduction of sulphate ions in the medium, followed by the formation of an insoluble partly protective film of ferrous sulphide on the surface of the electrode. The effect of SRB (Sulphate Reducing Bacteria) is clearly showed in the cathodic polarization curve. When the SRB is in a condition of rapid growth, there is a strong cathodic depolarization. However, as the sulphate is depleted and reaction products accumulate, the activity of the bacteria declines and the cathodic polarization curve returns the same form as in the inoculated culture.KEY WORDS: microbiologically influenced corrosion; sulphate reducing bacteria; thermomechanical control process steel.

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Aerobic and Anaerobic Iron Corrosion in Water Mains

Cited by 34 publications

References 8 publications

Methods to Evaluate Corrosion in Buried Steel Structures: A Review

Methods to Evaluate Corrosion in Buried Steel Structures: A Review

Role of the reversible electrochemical deprotonation of phosphate species in anaerobic biocorrosion of steels

The Microbiologically Influenced Corrosion Behavior of C-Mn Ship Structural Steel with Different Manufacturing Processes

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