Microbiologically Influenced Corrosion

Little, Brenda J.; Mansfeld, F.; Arps, Peggy J.; Earthman, James C.

doi:10.1002/9783527610426.bard040603

Cited by 21 publications

(37 citation statements)

References 67 publications

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“…Neutrophilic FeOB also contribute to corrosion of industrial steel pipelines and structures such as bridges, piers, and ships by greatly enhancing rates of Fe(II) oxidation (2). However, the molecular mechanism enabling oxidation of Fe(II) is among the most poorly understood lithotrophic metabolic strategies (1).…”

Section: Observationmentioning

confidence: 99%

Cultivation of an Obligate Fe(II)-Oxidizing Lithoautotrophic Bacterium Using Electrodes

Summers

Gralnick

Bond

2013

mBio

117

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Fe(II)-oxidizing aerobic bacteria are poorly understood, due in part to the difficulties involved in laboratory cultivation. Specific challenges include (i) providing a steady supply of electrons as Fe(II) while (ii) managing rapid formation of insoluble Fe(III) oxide precipitates and (iii) maintaining oxygen concentrations in the micromolar range to minimize abiotic Fe(II) oxidation. Electrochemical approaches offer an opportunity to study bacteria that require problematic electron donors or acceptors in their respiration. In the case of Fe(II)-oxidizing bacteria, if the electron transport machinery is able to oxidize metals at the outer cell surface, electrodes poised at potentials near those of natural substrates could serve as electron donors, eliminating concentration issues, side reactions, and mineral end products associated with metal oxidation. To test this hypothesis, the marine isolate Mariprofundus ferrooxydans PV-1, a neutrophilic obligate Fe(II)-oxidizing autotroph, was cultured using a poised electrode as the sole energy source. When cells grown in Fe(II)-containing medium were transferred into a three-electrode electrochemical cell, a cathodic (negative) current representing electron uptake by bacteria was detected, and it increased over a period of weeks. Cultures scraped from a portion of the electrode and transferred into sterile reactors consumed electrons at a similar rate. After three transfers in the absence of Fe(II), electrode-grown biofilms were studied to determine the relationship between donor redox potential and respiration rate. Electron microscopy revealed that under these conditions, M. ferrooxydans PV-1 attaches to electrodes and does not produce characteristic iron oxide stalks but still appears to exhibit bifurcate cell division.

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Section: Observationmentioning

confidence: 99%

Cultivation of an Obligate Fe(II)-Oxidizing Lithoautotrophic Bacterium Using Electrodes

Summers

Gralnick

Bond

2013

mBio

117

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“…The APB have now been documented as a possible major cause of corrosion, mainly because of their fermentative activities that will cause the local pH, mainly in the biofilms, to drop into the acidic range [31]. p0165…”

Section: -Sherik-9780081011058mentioning

confidence: 99%

“…The focal problem in sulfuric and nitric acid corrosion is the fact that the resultant salts are water soluble and, therefore, a formation of a protective corrosion product layer is not probable. Moreover, because of the decrease in pH, protective deposits formed on the surface, e.g., calcium carbonate can easily dissolve into the liquid [31]. p0180…”

Section: -Sherik-9780081011058mentioning

confidence: 99%

Microbiologically Influenced Corrosion (MIC)

2019

Corrosion and Materials in Hydrocarbon Production

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Hungary s0010 8.1 Introduction p0010 Microbiologically influenced corrosion (MIC) has received increasing attention by engineers and scientists from different fields (materials and corrosion scientists and engineers, biologists, and microbiologists). MIC refers to the possibility that microorganisms are involved in the deterioration of metallic (and nonmetallic) materials. Microbial corrosion is a significant problem affecting the oil and gas and other industries. It degrades the integrity, safety, and reliability of pipeline operations and other systems. However, the mere presence of given classes of microbes associated with MIC does not indicate that MIC is occurring. Nor does showing that the presence of a given type of microorganisms establishes a cause-and-effect relationship between the bacteria and metal dissolution. For MIC to occur, water presence, even at very low amounts, is necessary [1e4]. p0015The last decade revealed that not only the sulfate-reducing bacteria (SRB) are responsible for MIC but also several other microbes, e.g., the acid producers, iron oxidizers, and general aerobic bacteria [1]. MIC is rarely associated with one single mechanism or one single species of microorganisms. In addition to SRB many microorganisms occurring in natural environments are also considered corrosion-causing microbes, including methanogens, sulfur-oxidizing bacteria (SOB), acid-producing bacteria (APB), ironoxidizing bacteria (IOB), iron-reducing bacteria (IRB), and manganese-oxidizing bacteria (MOB). Each of these physiological groups of microorganisms may contain hundreds of individual species. Each group of bacteria or an individual species of bacteria alone can influence metal corrosion; however, severe MIC in a natural environment is always caused by microbial communities containing many different types of microbes. p0020For better understanding of MIC and its threats on pipelines and other structures, it is essential to learn more about how microbes influence metallic corrosion, to identify their presence and existence, and to monitor their destructive activities. MIC is not a new type of corrosion, but it involves microorganisms that, by their presence and active, aggressive metabolites and exopolymeric substances (EPS) (produced by microorganisms and composed mainly of polysaccharides) degrade materials, especially metals. The metabolic products (e.g., sulfide, organic acids) alter the interface chemistry resulting in increased corrosion rate and, together with the EPS, on the metal surface cause pH and dissolved oxygen gradients that lead first to localized (pitting and crevice) corrosion, which if remains unmitigated, will lead to metal wall perforations [4e6].Trends in Oil and Gas Corrosion Research and Technologies. http://dx. AbstractMicrobiologically influenced corrosion (MIC) refers to the influence of microorganisms on the kinetics of corrosion processes of metals and nonmetallic materials, caused by adhering to the interfaces (usually referred to as "biofilms"). The corrosionrelevant microbes l...

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“…In nature, microbes can adapt to alternating dry and wet conditions. They become dormant during the dry phase and grow again after moisture returns . A layer of liquid film provides a good environment for microbial growth.…”

Section: Introductionmentioning

confidence: 99%

Strong acid resistance from electrochemical deposition of WO₃ on super‐hydrophobic CuO‐coated copper surface

Dou

Wang

et al. 2018

Materials & Corrosion

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In marine and industrial environments, salts and aggressive contaminants in water may cause corrosion and degradation, including acid corrosion and erosion. Super‐hydrophobic (SH) metal oxide films can keep surfaces dry by expelling water droplets. This inhibits corrosion. However, acid rain can dissolve the metal oxide films. Thus, it is necessary to protect SH films against acid erosion. In this work, a WO3 film was added on top of CuO‐coated SH copper surface using electrochemical deposition. The composite SH CuO‐WO3 film exhibited a strong acid resistance. After 48 h immersion in 0.2 N sulfuric acid, the film retained its nearly perfect micro‐nano structure with a static water contact angle of 160 ± 2°. After acid erosion, the corrosion rate in a 3.5% (w/w) NaCl solution was tested using potentiodynamic polarization curves. Its corrosion current density was found to be four orders of magnitude lower compared with CuO‐coated copper. This kind of acid resistant SH surfaces with much enhanced ability against atmospheric oxygen corrosion in the presence of salty water have potential applications in marine and other industrial environments.

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Microbiologically Influenced Corrosion

Abstract: The sections in this article are Biofilm Formation Corrosion Promoting Mechanisms Sulfur, Sulfate and Thiosulfate Reduction Practical Aspects Sulfur/Sulfide Oxidation Metal‐oxidizing Bacteria Metal‐reducing Bacteria Acid‐producing … Show more

Cited by 21 publications

References 67 publications

Cultivation of an Obligate Fe(II)-Oxidizing Lithoautotrophic Bacterium Using Electrodes

Cultivation of an Obligate Fe(II)-Oxidizing Lithoautotrophic Bacterium Using Electrodes

Microbiologically Influenced Corrosion (MIC)

Strong acid resistance from electrochemical deposition of WO₃ on super‐hydrophobic CuO‐coated copper surface

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Microbiologically Influenced Corrosion

Abstract: The sections in this article are Biofilm Formation Corrosion Promoting Mechanisms Sulfur, Sulfate and Thiosulfate Reduction Practical Aspects Sulfur/Sulfide Oxidation Metal‐oxidizing Bacteria Metal‐reducing Bacteria Acid‐producing … Show more

Cited by 21 publications

References 67 publications

Cultivation of an Obligate Fe(II)-Oxidizing Lithoautotrophic Bacterium Using Electrodes

Cultivation of an Obligate Fe(II)-Oxidizing Lithoautotrophic Bacterium Using Electrodes

Microbiologically Influenced Corrosion (MIC)

Strong acid resistance from electrochemical deposition of WO3 on super‐hydrophobic CuO‐coated copper surface

Contact Info

Product

Resources

About

Strong acid resistance from electrochemical deposition of WO₃ on super‐hydrophobic CuO‐coated copper surface