Quantifying microbially induced deterioration of concrete: initial studies

Roberts, Deborah J.; Nica, Dana; Zuo, Geyan; Davis, Jeffrey L.

doi:10.1016/s0964-8305(02)00049-5

Cited by 162 publications

(86 citation statements)

References 15 publications

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“…3 to 4 mm year Ϫ1 . This corrosion rate was within a range of previously reported corrosion rates for real sewer systems (28,36). Coincident with this increased weight loss, the acidophilic SOB Acidithiobacillus thiooxidans appeared and became the most dominant microbial species.…”

Section: Succession Of Concrete Corrosion and Microbial Communitysupporting

confidence: 85%

“…The pH at the surface of the concrete coupon was measured using a flat surface electrode (HORIBA, Japan). A small droplet of deionized water was placed on the coupon surface and allowed to equilibrate (36). The pH of this droplet was then measured directly.…”

Section: Methodsmentioning

confidence: 99%

“…To efficiently control MICC, it is necessary to understand the microbial succession of SOB and other bacteria that are responsible for the initial colonization, the production of sulfuric acid, and the subsequent deterioration of concrete under real sewer conditions. Although molecular-based techniques have proven to be useful in more accurately describing the microbial ecology of acidic environments, only a few studies have been carried out with these techniques (15,44).In most cases, only the rate of weight loss of concrete coupons was evaluated in experimental chambers on a bench scale in which fully grown pure cultures of SOB in acidic artificial culture media were used to inoculate the concrete coupons (28,29,36,40). The rates derived from these experiments do not necessarily reflect the rates that would be found in real sewer systems.…”

mentioning

confidence: 99%

“…The biogenic acid is generated by various microbial species and complex mechanisms. The general mechanism for the sulfuric acidcaused corrosion of sewer systems has been described in the literature (17,36). In the first step, hydrogen sulfide (H 2 S) is produced by sulfate-reducing bacteria under anaerobic conditions in sewer pipes.…”

mentioning

confidence: 99%

“…In most cases, only the rate of weight loss of concrete coupons was evaluated in experimental chambers on a bench scale in which fully grown pure cultures of SOB in acidic artificial culture media were used to inoculate the concrete coupons (28,29,36,40). The rates derived from these experiments do not necessarily reflect the rates that would be found in real sewer systems.…”

mentioning

confidence: 99%

See 4 more Smart Citations

Succession of Sulfur-Oxidizing Bacteria in the Microbial Community on Corroding Concrete in Sewer Systems

Okabe

Odagiri

Ito

et al. 2007

Appl Environ Microbiol

305

238

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Microbially induced concrete corrosion (MICC) in sewer systems has been a serious problem for a long time. A better understanding of the succession of microbial community members responsible for the production of sulfuric acid is essential for the efficient control of MICC. In this study, the succession of sulfur-oxidizing bacteria (SOB) in the bacterial community on corroding concrete in a sewer system in situ was investigated over 1 year by culture-independent 16S rRNA gene-based molecular techniques. Results revealed that at least six phylotypes of SOB species were involved in the MICC process, and the predominant SOB species shifted in the following order: Thiothrix sp., Thiobacillus plumbophilus, Thiomonas intermedia, Halothiobacillus neapolitanus, Acidiphilium acidophilum, and Acidithiobacillus thiooxidans. A. thiooxidans, a hyperacidophilic SOB, was the most dominant (accounting for 70% of EUB338-mixed probe-hybridized cells) in the heavily corroded concrete after 1 year. This succession of SOB species could be dependent on the pH of the concrete surface as well as on trophic properties (e.g., autotrophic or mixotrophic) and on the ability of the SOB to utilize different sulfur compounds (e.g., H 2 S, S 0 , and S 2 O 3 2؊). In addition, diverse heterotrophic bacterial species (e.g., halo-tolerant, neutrophilic, and acidophilic bacteria) were associated with these SOB. The microbial succession of these microorganisms was involved in the colonization of the concrete and the production of sulfuric acid. Furthermore, the vertical distribution of microbial community members revealed that A. thiooxidans was the most dominant throughout the heavily corroded concrete (gypsum) layer and that A. thiooxidans was most abundant at the highest surface (1.5-mm) layer and decreased logarithmically with depth because of oxygen and H 2 S transport limitations. This suggested that the production of sulfuric acid by A. thiooxidans occurred mainly on the concrete surface and the sulfuric acid produced penetrated through the corroded concrete layer and reacted with the sound concrete below.Concrete corrosion has an enormous economic impact worldwide, especially when the replacement or repair of municipal sewer systems is required. Concrete corrosion is the result of several causes such as carbonation, chloride erosion, and other chemical reactions. In sewer systems and wastewater treatment facilities where high concentrations of hydrogen sulfide, moisture, and oxygen are present in the atmosphere, the deterioration of concrete is caused mainly by biogenic acid (i.e., sulfuric acid) and is known as microbially induced concrete corrosion (MICC). The biogenic acid is generated by various microbial species and complex mechanisms. The general mechanism for the sulfuric acidcaused corrosion of sewer systems has been described in the literature (17, 36). In the first step, hydrogen sulfide (H 2 S) is produced by sulfate-reducing bacteria under anaerobic conditions in sewer pipes. This hydrogen sulfide enters the sewer atmosphere by v...

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Section: Succession Of Concrete Corrosion and Microbial Communitysupporting

confidence: 85%

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 3 more Smart Citations

Succession of Sulfur-Oxidizing Bacteria in the Microbial Community on Corroding Concrete in Sewer Systems

Okabe

Odagiri

Ito

et al. 2007

Appl Environ Microbiol

305

238

View full text Add to dashboard Cite

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References

2021

Eco‐design of Marine Infrastructures

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Enhanced anti‐microbial activity in green concrete specimens containing fly ash, nanophase modifiers, and corrosion inhibitor

Harilal

Uthaman

George

et al. 2018

Env Prog and Sustain Energy

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This study reports the anti‐bacterial properties of green concrete containing fly ash, nanoparticle modifiers, and a corrosion inhibitor. Four different concrete specimens, namely control concrete containing ordinary portland cement (CC), fly ash concrete containing 40 wt % fly ash (CF), modified fly ash concrete containing nano‐TiO2 and nano‐CaCO3 (1 wt % each) called CFN, and CFN with 2 wt % corrosion inhibitor (CFNI) are used in the present study. Among the four specimens exposed to microbial culture, CFNI showed minimal bacterial attachment and biofilm density, which is further corroborated from Epifluorescence microscopy and 3D confocal laser scanning microscopy. The CFNI specimens showed the least pH reduction among the four, which resulted in the enhanced microbial resistance. The results unambiguously confirm the synergetic effects of nanophase modifiers and NaNO2 based inhibitor in controlling microbial activity in concrete specimens. The results have promising applications in formulating concrete structures that are exposed to harsh environmental conditions. © 2018 American Institute of Chemical Engineers Environ Prog, 38:e13102, 2019

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Quantifying microbially induced deterioration of concrete: initial studies

Cited by 162 publications

References 15 publications

Succession of Sulfur-Oxidizing Bacteria in the Microbial Community on Corroding Concrete in Sewer Systems

Succession of Sulfur-Oxidizing Bacteria in the Microbial Community on Corroding Concrete in Sewer Systems

References

Enhanced anti‐microbial activity in green concrete specimens containing fly ash, nanophase modifiers, and corrosion inhibitor

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