Microbial corrosion as a manifestation of technogenesis in biofilms formed on surfaces of underground structures

Козлова, И. А.; Kopteva, Zh.P.; Zanina, V.V.; Purish, L. M.

doi:10.1007/s11003-010-9302-4

Cited by 5 publications

(3 citation statements)

References 7 publications

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“…Carbon steel, although susceptible to corrosion, is frequently employed in industries and infrastructure because of its strength, availability, relatively low cost, and fire resistance [19]. Infrastructure affected by MIC (e.g., buried pipelines) is often operated under anaerobic or microaerobic conditions [20]. Most studies on anaerobicmicroaerobic MIC use sulfate-reducing bacteria (SRBs) because they are sulfide producers and promoters of the cathodic depolarization process in steel [14,38].…”

Section: Introductionmentioning

confidence: 99%

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Effects of Iron-Reducing Bacteria on Carbon Steel Corrosion Induced by Thermophilic Sulfate-Reducing Consortia

Valencia-Cantero¹,

Peña‐Cabriales²

2014

Journal of Microbiology and Biotechnology

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Four thermophilic bacterial species, including the iron-reducing bacterium Geobacillus sp. G2 and the sulfate-reducing bacterium Desulfotomaculum sp. SRB-M, were employed to integrate a bacterial consortium. A second consortium was integrated with the same bacteria, except for Geobacillus sp. G2. Carbon steel coupons were subjected to batch cultures of both consortia. The corrosion induced by the complete consortium was 10 times higher than that induced by the second consortium, and the ferrous ion concentration was consistently higher in iron-reducing consortia. Scanning electronic microscopy analysis of the carbon steel surface showed mineral films colonized by bacteria. The complete consortium caused profuse fracturing of the mineral film, whereas the non-iron-reducing consortium did not generate fractures. These data show that the iron-reducing activity of Geobacillus sp. G2 promotes fracturing of mineral films, thereby increasing steel corrosion.

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Section: Introductionmentioning

confidence: 99%

“…The dissolution of this protective film by iron-reducing bacteria (IRBs) may result in increased corrosion rates [10,25]. SRBs and IRBs frequently coexist in association with buried metallic structures [1,20]. The corrosive effect of microbial cocultures (consortia) composed of SRBs and IRBs is controversial [12].…”

Section: Introductionmentioning

confidence: 99%

Effects of Iron-Reducing Bacteria on Carbon Steel Corrosion Induced by Thermophilic Sulfate-Reducing Consortia

Valencia-Cantero¹,

Peña‐Cabriales²

2014

Journal of Microbiology and Biotechnology

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“…Carbon steel, although susceptible to corrosion, is frequently employed in industries and infrastructure because of its strength, availability, relatively low cost and fire resistance [4]. Infrastructure affected by MIC (buried pipelines) is often operated under anaerobic or micro aerobic conditions [5]. Most studies on anaerobic-micro aerobic MIC use sulphate reducing bacteria (SRBs) because they are sulphide producers and promoters of the cathodic depolarization process in steel [6] [7].…”

Section: Introductionmentioning

confidence: 99%

Corrosion of High Carbon Steel by Bacteria under Aerobic and Anaerobic Conditions

Nwokorie¹,

Nweke²,

Umeh³

et al. 2019

MSA

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The role of microbes in the corrosion of metals is due to the chemical activities (metabolism) associated with the microbial growth and reproduction. A lot of researches have shown that enormous loss of resources and even lives has been experienced in many countries of the world due to corrosion. There is therefore need to device a means of combating this menace so as to save different countries of the world including Nigeria the cost encured due to corrosion. This research has helped to determine the role of bacteria in the corrosion of high carbon steel under aerobic and anaerobic conditions was investigated using sulphate reducing bacteria and other aerobes. A sample of high carbon steel grade of chemical composition: 96% iron (Fe), 1.08% carbon (C), 0.349% silicon (Si), 0.841% manganese (Mn), 0.005% phosphorus (P) and 0.005% sulphur (S), was obtained in the form of steel plate. Eighteen (18) samples of the high carbon steel were prepared. Standard microbiological methods were used to isolate aerobic and anaerobic bacteria isolates. The microbes isolated from the soil included; aerobes (Bacillus species, Pseudomonas species) and anaerobes (Desulfovibrio species, Thiobacillus species).The role of bacteria in the corrosion of high carbon steel was estimated using the weight loss technique and the electrochemical potential measurement technique. Eighteen samples of a high carbon steel of known compositions were exposed to sulphate reducing bacteria under different environments (aerobic, anaerobic and control). The physical and chemical changes were examined and monitored on weekly basis for six weeks. It was observed that the coupons immersed in the media with sulphate reducing bacterium underwent fast activation and numerous corrosion sites were formed on the surfaces. The average corrosion rate for six weeks (42 days) period of time as determined by the weight loss method and electrochemical testing were How to cite this paper: Nwokorie, R.C., 228Materials Sciences and Applications found to be 0.0004595 mm/year, −0.712 mV in aerobic environment, 0.0005646 mm/year, −0728 mV in anaerobic environment and 0.0004458 mm/year, −0702 mV in the control or reference environment (distilled water environment). High carbon steel was found to corrode more only in the anaerobic environment. In view of this, high carbon steels were found to be relatively more corrosion resistant than mild and medium carbon steels and may be suitable for application in industries such as the petrochemical industry. Therefore, treating the environment with chlorine but with caution as solutions of chlorine gas in water is corrosive to steels while the use of bactericides or biocides to arrest the action of microbes is important.

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Novel blade-like structure of reduced graphene oxide/α-Mn2O3 nanocomposite as an antimicrobial active agent against aerobic and anaerobic bacteria

Fatthallah

Higazy

Chen

et al. 2023

Materials Chemistry and Physics

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Microbial corrosion as a manifestation of technogenesis in biofilms formed on surfaces of underground structures

Cited by 5 publications

References 7 publications

Effects of Iron-Reducing Bacteria on Carbon Steel Corrosion Induced by Thermophilic Sulfate-Reducing Consortia

Effects of Iron-Reducing Bacteria on Carbon Steel Corrosion Induced by Thermophilic Sulfate-Reducing Consortia

Corrosion of High Carbon Steel by Bacteria under Aerobic and Anaerobic Conditions

Novel blade-like structure of reduced graphene oxide/α-Mn2O3 nanocomposite as an antimicrobial active agent against aerobic and anaerobic bacteria

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