Biodeterioration of Concrete Sewer Pipes:  State of the Art and Research Needs

Hudon, Émilie; Mirza, Saeed; Frigon, Dominic

doi:10.1061/(asce)ps.1949-1204.0000072

Cited by 32 publications

(23 citation statements)

References 30 publications

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“…They are active in different ranges of pH (see Fig.2.5) and produce H 2 SO 4 with different rates. Two general categories of SOB can be differentiated based on their optimal pH for growth (Hudon et al, 2011):…”

Section: The Production Of H 2 So 4 By Sulfur-oxidizing Bacteriamentioning

confidence: 99%

“…Most types of SOB are not able to oxidize sulfide directly. Fig.2.6 summarizes the possible oxidation pathways in biofilms, which can occur concurrently (Hudon et al, 2011;Islander et al, 1991). Figure 2.5: Succession of SOB in different pH range (Herisson, 2012) Figure 2.6: Sulfur oxidation states typical in sewer.…”

Section: The Production Of H 2 So 4 By Sulfur-oxidizing Bacteriamentioning

confidence: 99%

“…This may be justified by several reasons, such as inaccurate parameters in model, different conditions between simulation and experiment and carbonation occurring during the initiation stage of biodeterioration (Hudon et al, 2011;Magniont et al, 2011;Joseph et al, 2012). Normally, overestimated/ underestimated diffusion coefficients would affect the corrosion rate during the whole process.…”

Section: Effect Of Carbonated Layermentioning

confidence: 99%

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Degradation modeling of concrete submitted to biogenic acid attack

Yuan

Dangla

Chatellier³

et al. 2015

Cement and Concrete Research

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Biodeterioration of concrete,which is very common in sewer system, results in significant structure degradation. The process can be described by the 3 following steps: Concrete surface neutralization providing appropriate environment for sulfur oxidizing bacteria (SOB) to grow, sulfuric acid (H2SO4) production by SOB on concrete surface and chemical reaction between H2SO4 and cement hydration products. A reactive transport model is proposed to simulate the whole biodeterioration processes of concrete in contact with H2S gas and SOB. This model aims at solving simultaneously transport and biochemistry/chemistry in biofilm and concrete by a global coupled approach. To simulate the neutralization process, the absorption of H2S gas, the dissolution of portlandite (CH), the decalcification of calcium silicate hydrates (C-S-H) and the precipitation of calcium sulfide (CaS) are considered. To obtain the amount of biogenic acid, the production rate of H2SO4 by SOB is calculated via a set of simplified models governed by pH. Coupling with the modeling of H2SO4 degradation process, the biodeterioration depth and the solid composition evolution could be predicted. A laboratory experiment reported in literature is simulated and the simulation results are compared with experimental results

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Section: The Production Of H 2 So 4 By Sulfur-oxidizing Bacteriamentioning

confidence: 99%

Section: The Production Of H 2 So 4 By Sulfur-oxidizing Bacteriamentioning

confidence: 99%

Section: Effect Of Carbonated Layermentioning

confidence: 99%

See 1 more Smart Citation

Degradation modeling of concrete submitted to biogenic acid attack

Yuan

Dangla

Chatellier³

et al. 2015

Cement and Concrete Research

View full text Add to dashboard Cite

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“…A study (Ling et al , 2014) indicated that corrosion is particularly intense in sites with high levels of hydrogen sulphide gas (>100 ppm) and carbon dioxide (>1%). The ecology of oxidizing sulphur microbial communities is related to the pH value of the cement matrix (Okabe et al , 2007; Hudon et al , 2011). Before degradation, the pH of concrete is strongly basic, which prevents the development of sulphur oxidizing bacteria.…”

Section: Introductionmentioning

confidence: 99%

Corrosion of concrete pipes in a sewer environment – two case studies

Oualit

Jauberthie

2019

Water & Environment J

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The deterioration and cost-effective maintenance of infrastructure has for many years been an area of social and financial importance. The deterioration of the wastewater infrastructure is particularly important because of its key role in the maintenance of public health for urban conglomerations. This paper describes two case studies that are taken from an ongoing study of the sewerage network in the Municipality of Rennes, France. Both studies concern spun concrete pipes laid approximately 55 years ago. The first case is that of a sewer in good order because of its location within the network and its design. The second case describes a sewer that has been oversized and the conditions within the reach of the sewer have led to sulphide attack. It is concluded that two important considerations that must be taken into account is the design detailing and appropriate selection of materials.

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“…The ecology of the sulfur oxidizing microbial communities is highly dependent on the pH of the concrete matrix [20,21]. After casting, the pH of concrete is higher than 12 (usually in the order of 13.5), which inhibits sulfur-oxidizing bacteria development.…”

Section: Introductionmentioning

confidence: 99%

Effects of biodeterioration on the mechanical properties of concrete

et al. 2015

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International audienceConcrete biodeterioration in sewers and structures subjected to environments rich in hydrogen sulfide has been related to the activity of sulfur oxidizing bacteria (SOB). In previous studies, the effect of the activity of SOB on concrete structures has been linked mainly to weight loss. In our work we have investigated, in addition to the weight loss, the variations in porosity and compressive strength. The main objective of this paper is to explore, under controlled conditions, the effect of biodegradation of non-submerged samples, on both the physical properties and the mechanical performance. Towards this aim, cement mortar samples inoculated with pure cultures of Acidithiobacillus thiooxidans, Halothiobacillus neapolitanus, and a consortium containing both strains, were exposed to an H2S-rich environment. Changes in physical properties, including weight and porosity, and compressive strength were measured over 300 days. The results showed that the greatest reduction of weight and compressive strength was observed in samples inoculated with the consortium (7 and 52 %, respectively); while the largest variation in porosity was observed in samples inoculated with A. thiooxidans (27 %). These results were used to obtain relationships between the amount of sulfur available over time with specific physical and mechanical properties; i.e., compressive strength, porosity, weight loss, and physical appearance

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Biodeterioration of Concrete Sewer Pipes: State of the Art and Research Needs

Cited by 32 publications

References 30 publications

Degradation modeling of concrete submitted to biogenic acid attack

Degradation modeling of concrete submitted to biogenic acid attack

Corrosion of concrete pipes in a sewer environment – two case studies

Effects of biodeterioration on the mechanical properties of concrete

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