Formation of the Fe(II–III) hydroxysulphate green rust during marine corrosion of steel associated to molecular detection of dissimilatory sulphite-reductase

Pineau, S.; Sabot, R.; Quillet, Laurent; Jeannin, Marc; Caplat, Ch.; Dupont-Morral, Isabelle; Refait, Philippe

doi:10.1016/j.corsci.2007.11.029

Cited by 120 publications

(97 citation statements)

References 36 publications

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“…5). It was reported that GRs can be oxidized by dissolved O 2 into Fe 3 O 4 , a-FeOOH, g-FeOOH or g-Fe 2 O 3 depending on pH and oxidation rate (Erbs, 2004;Pineau et al, 2008). Under the condition of this investigation, the dissolved O 2 concentration in the pipe loops was considered relatively higher than that in actual DWDS condition because oxygen could continuously dissolved into the experimental loops through the feed water tank.…”

Section: Scale Crystalline Composition Transformationmentioning

confidence: 98%

“…The higher solubility of Fe(II) oxides led to more iron released into bulk water and consequently caused the formation of red water (Lytle et al, 2005). In addition, SRB proliferation favored sulfide production and hindered the formation of Fe 3 O 4 , thus promoted iron corrosion and iron release (Lytle et al, 2005;Pineau et al, 2008). The presence of SRB is often characterized by the presence of S 0 and Fe x S y minerals, e.g.…”

Section: 4mentioning

confidence: 99%

“…This phenomenon might be the combined effect of all bacterial communities, including IOB, IRB and SOB. Some recent research had found that the SOB and IRB could inhibit the SRB-induced corrosion (Duan et al, 2008;Lee et al, 2006;Pineau et al, 2008). Bacteria associated with iron pipe corrosion (SOB, SRB, IOB, IRB etc.)…”

Section: 4mentioning

confidence: 99%

“…Bacteria associated with iron pipe corrosion (SOB, SRB, IOB, IRB etc.) are often observed coexisting in biofilms and they could exhibit synergistic or inhibitive effect on corrosion processes (Iwona and Christine, 1999;Pineau et al, 2008).…”

Section: 4mentioning

confidence: 99%

“…as well as other iron-oxidizing bacteria (IOB) in the bulk water could facilitate the precipitation of iron oxides by converting ferrous to ferric iron, thus contributing to the formation of red water (Li et al, 2010). Additionally, sulfate reducing bacteria (SRB) have long been considered to be associated with the promotion of iron corrosion, and hindering the formation of the stable iron oxide -Fe 3 O 4 (Lytle et al, 2005;Pineau et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

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Effect of sulfate on the transformation of corrosion scale composition and bacterial community in cast iron water distribution pipes

et al. 2014

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t r a c tThe chemical stability of iron corrosion scales and the microbial community of biofilm in drinking water distribution system (DWDS) can have great impact on the iron corrosion and corrosion product release, which may result in "red water" issues, particularly under the situation of source water switch. In this work, experimental pipe loops were set up to investigate the effect of sulfate on the dynamical transformation characteristics of iron corrosion products and bacterial community in old cast iron distribution pipes. All the test pipes were excavated from existing DWDS with different source water supply histories, and the test water sulfate concentration was in the range of 50e350 mg/L. Pyrosequencing of 16S rRNA was used for bacterial community analysis. The results showed that iron release increased markedly and even "red water" occurred for pipes with groundwater supply history when feed water sulfate elevated abruptly. However, the iron release of pipes with only surface water supply history changed slightly without noticeable color even the feed water sulfate increased multiply. The thick-layered corrosion scales (or densely distributed tubercles) on pipes with surface water supply history possessed much higher stability due to the larger proportion of stable constituents (mainly Fe 3 O 4 ) in their top shell layer; instead, the rather thin and uniform non-layered corrosion scales on pipes with groundwater supply history contained relatively higher proportion of less stable iron oxides (e.g. b-FeOOH, FeCO 3 and green rust). The less stable corrosion scales tended to be more stable with sulfate increase, which was evidenced by the gradually decreased iron release and the increased stable iron oxides. Bacterial community analysis indicated that when switching to high sulfate water, iron reducing bacteria (IRB) maintained dominant for pipes with stable corrosion scales, while significant increase of sulfur oxidizing bacteria (SOB), sulfate reducing bacteria (SRB) and iron oxidizing bacteria (IOB) was observed for pipes with less stable corrosion scales.ª 2014 Elsevier Ltd. All rights reserved.* Corresponding author. Tel.: þ86 10 62849138; fax: þ86 10 62923541. E-mail addresses: byshi@rcees.ac.cn, shibaoyou@yahoo.com (B. Shi).Available online at www.sciencedirect.com ScienceDirect journal homepage: www.else vier.com/locate /wa tres w a t e r r e s e a r c h 5 9 ( 2 0 1 4 ) 4 6 e5 7http://dx

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Section: Scale Crystalline Composition Transformationmentioning

confidence: 98%

Section: 4mentioning

confidence: 99%

Section: 4mentioning

confidence: 99%

Section: 4mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of sulfate on the transformation of corrosion scale composition and bacterial community in cast iron water distribution pipes

et al. 2014

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Electrochemical techniques correlation study of on‐line corrosion monitoring probes

Bai

Baker

et al. 2013

Materials & Corrosion

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Electrochemical techniques, such as linear polarization resistance (LPR), weak polarization (WP), electrochemical impedance spectroscopy (EIS), are effective tools to characterize instantaneous corrosion rates. In this work, LPR, WP, EIS techniques have been applied to calculate corrosion rates based on various electrode probe systems. These include classical three electrode systems (CTES), three identical electrode systems (Three‐IES), three electrode systems of stainless steel as reference Three‐ES (SS‐RE), two identical electrode systems (Two‐IES). Weight loss coupons were used to set a baseline for comparison between the different electrode probe systems. Polarization resistances calculated by EIS and LPR follows the order: CTES/Two‐IES/Three‐ES (SS‐RE) > Three‐IES. Corrosion rates measured by various techniques follow the order: LPR > WP > EIS >> coupon. Then effects of electrode systems and the electrochemical techniques are discussed, and combinations of electrode probe systems and electrochemical techniques are suggested for industrial applications.

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Galvanic corrosion in marine environments: Effects associated with the inversion of polarity of Zn/carbon steel couples

Refait

Jeannin

Francois

et al. 2018

Materials & Corrosion

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This article focuses on the corrosion processes resulting from the galvanic coupling between an unprotected carbon steel coupon and a “passivated” Zn‐coated carbon steel coupon. Monitoring of the galvanic current showed that the galvanized steel coupon acted as cathode, which confirmed the inversion of polarity due to Zn passivation. However, it remained cathode for only 6 months and behave as anode for the rest of the experiment (i.e., 5 years). At the end of the experiment, both coupons presented localized degradation. The local corrosion rates were estimated by residual thickness measurements. The highest (200 μm/year) was measured on the more corroded parts of the galvanized steel coupon, while the lowest (13 μm/year) corresponded to the cathodic zones of the same coupon, covered by passivated zinc. The phenomena could be interpreted via the thorough analysis of the corrosion product layers by X‐ray diffraction and μ‐Raman spectroscopy as the composition of these layers depended on the anodic/cathodic character and intensity of the metal surface underneath.

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Formation of the Fe(II–III) hydroxysulphate green rust during marine corrosion of steel associated to molecular detection of dissimilatory sulphite-reductase

Cited by 120 publications

References 36 publications

Effect of sulfate on the transformation of corrosion scale composition and bacterial community in cast iron water distribution pipes

Effect of sulfate on the transformation of corrosion scale composition and bacterial community in cast iron water distribution pipes

Electrochemical techniques correlation study of on‐line corrosion monitoring probes

Galvanic corrosion in marine environments: Effects associated with the inversion of polarity of Zn/carbon steel couples

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