SRB-biofilm influence in active corrosion sites formed at the steel-electrolyte interface when exposed to artificial seawater conditions

Castaneda, Homero; Domínguez-Benetton, Xochitl

doi:10.1016/j.corsci.2007.11.032

Cited by 210 publications

(107 citation statements)

References 23 publications

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“…The high frequency time constant (10 kHz < f < 100 Hz) is characterized by an amplitude of about 30 cm 2 and does not significantly varies with time. Such value is small and cannot be attributed to a charge transfer resistance, but to a thin corrosion layer products which have already been described for carbon steel in sterile artificial sea water [42]. In addition, the analysis of this flattened capacitive loop allows a constant phase element to be determined, and from the used of Brug formula [43,44], a capacitance is obtained ( Figure 5).…”

Section: Resultsmentioning

confidence: 99%

“…Its variations are reported in Figure 6 and show an increase with time after 60 hours (whereas in abiotic condition, a continuous increase with time was obtained) from 300 µFcm -2 to 750 µFcm -2 after five days. Such unusual high values for double layer capacitance can be explained by the accumulation of corrosion product over the electrode surface and the 3D architecture of the interface in presence of biological material [42,45]. Thus, the constant value of the charge transfer resistance indicates that the carbon steel is dissolving at a constant rate, whereas the increase of the double layer capacitance is linked to the growth of the system formed by the bacteria and the corrosion products.…”

Section: Resultsmentioning

confidence: 99%

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Influence of hydrogen-oxidizing bacteria on the corrosion of low carbon steel: Local electrochemical investigations

Moreira

Schütz

Libert

et al. 2014

Bioelectrochemistry

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Low carbon steel has been considered a suitable material for component of the multi-barrier system employed on the geological disposal of high-level radioactive waste (HLW). A non negligible amount of dihydrogen (H 2 ) is expected to be produced over the years within the geological repository due to the anoxic corrosion of metallic materials and also due to the water radiolysis. The influence of the activity of hydrogen-oxidizing bacteria (HOB) and ironreducing bacteria (IRB) on carbon steel corrosion is considered in this study because of the high availability of energetic nutriments (H 2 , iron oxides and hydroxides) produced in anoxic disposal conditions. Local electrochemical techniques were used for investigating the activity of IRB as a promoter of local corrosion in presence of H 2 as electron donor. A local consumption of H 2 by the bacteria has been evidenced and impedance measurements indicate the formation of a thick layer of corrosion products.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Influence of hydrogen-oxidizing bacteria on the corrosion of low carbon steel: Local electrochemical investigations

Moreira

Schütz

Libert

et al. 2014

Bioelectrochemistry

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“…In most cases, studies deal with the effects of sulfate-reducing bacteria [6,9,11,12]. However, stimulation of the corrosion of metals, particularly steel, zinc, and galvanized steel [12,13] by other microorganisms (Esteria Coli, Proteus vulgaris, Pseudomonasaeruginosa, Brucella sp, Gallionella sp, Staphylococus aureus, Staphylococus epidermidis [7,13]) is considered as well.…”

Section: Introductionmentioning

confidence: 99%

“…The adverse effect of microbiological corrosion on structural metals is so great [1] and their damage to the world economy is so huge [2] that the problems of struggle against it are constantly in the field of vision of the researches [3][4][5][6][7][8][9][10][11][12][13][14][15]. Moreover, 20% of all losses from corrosion are due to microbiological impact.…”

Section: Introductionmentioning

confidence: 99%

Effect of the structure of o,o´-dihydroxyazo compounds on bactericidal and inhibitory ability

2017

Int. J. Corros. Scale Inhib.

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The paper is devoted to a study of the influence of the molecule structure of a number of o,o´-dihydroxyazo (DHA) compounds on their bactericidal ability toward sulfate-reducing bacteria (SRB) in the Postgate medium at small concentrations (5-20 mg/L). DHA compounds induce a decrease in number of bacterial cells, H 2 S production by SRB, and hydrogen permeation into carbon steel in the presence of SRB. The inhibition of steel corrosion in the bacterial medium by these substances is considered as well.

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“…SRB can cause corrosion of many kinds of metals including low-grade carbon steels (Castaneda and Benetton, 2008) , stainless steels (Antony et al, 2008), and copper alloys (Pak et al, 2003). It has been estimated that MIC causes millions of dollars lost to the production, transport, and oil storage of the US oil industry every year (Eckford and Fedorak, 2002b).…”

Section: Introductionmentioning

confidence: 99%

Identification and Phylogenetic Analysis of New Sulfate-Reducing Bacteria Isolated from Oilfield Samples

Wang

et al. 2009

Zeitschrift Für Naturforschung C

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Microbiologically infl uenced corrosion (MIC) caused by sulfate-reducing bacteria (SRB) has been investigated in an oilfi eld injection water system. Strain CW-01 was isolated from an oilfi eld and strain CW-04 was isolated from biofi lm dirt of pipeline walls. The strains were facultative anaerobes, non-motile, Gram-positive, pole fl agellum, and spore-forming curved rods. The growth was observed over the temperature range 20-70 ºC. Strain CW-01 grew optimally at 37 ºC. The pH range for growth was 3.0-11, optimal at pH 6.0. Strain CW-04 grew optimally at 48 ºC. The pH range for growth was 3.0-10, optimal at pH 7.2. The strains grew at a very broad range of salt concentrations. Optimal growth was observed with 1.5 g/L NaCl for strain CW-01 and 0.7 g/L NaCl for strain CW-04. The strains showed most similarity in physiological characteristics, except for acetone and saccharose. Analysis of the 16S rDNA sequences allowed strains CW-01 and CW-04 to be classifi ed into the genus Desulfotomaculum. The corrosion speciality of the strains had been comparatively investigated. Especially SRB's growth curve, bearable oxygen capability, drug fastness and corrosion rate had been analyzed. The results showed that it is diffi cult to prevent bacterial corrosion caused by these two strains.

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SRB-biofilm influence in active corrosion sites formed at the steel-electrolyte interface when exposed to artificial seawater conditions

Cited by 210 publications

References 23 publications

Influence of hydrogen-oxidizing bacteria on the corrosion of low carbon steel: Local electrochemical investigations

Influence of hydrogen-oxidizing bacteria on the corrosion of low carbon steel: Local electrochemical investigations

Effect of the structure of o,o´-dihydroxyazo compounds on bactericidal and inhibitory ability

Identification and Phylogenetic Analysis of New Sulfate-Reducing Bacteria Isolated from Oilfield Samples

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