Microbiologically influenced corrosion of galvanized steel by Desulfovibrio sp. and Desulfosporosinus sp. in the presence of Ag–Cu ions

Ilhan-Sungur, Esra; Unsal, Tuba; Cansever, Nurhan

doi:10.1016/j.matchemphys.2015.07.012

Cited by 23 publications

(6 citation statements)

References 36 publications

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“…ASVs were subsetted to include only those that were present in each of the triplicate microcosms. Among those, any classified as genera associated with waterborne pathogens ( Mycobacterium [ 57 ] , Legionella [ 58 ] , Arcobacter [ 59 ] , and Pseudomonas [ 60 ]) and pipe corrosion ( Leptothrix [ 61 ] , Pseudomonas [ 62 , 63 ] , Shewanella [ 64 , 65 ] , Sulfuricurvum [ 66 ] , Acidithiobacillus [ 67 ] , Geothermobacter [ 68 ] , Thiobacillus [ 69 ] , Geobacter [ 70 ] , Desulfomicrobium [ 71 ] , Desulfobulbus [ 72 ] , Sulfurospirillum [ 73 ] , and Desulfosporosinus [ 74 ]) were analyzed. Treatment response was estimated as the log2 fold change between the mean relative abundances of genera in treatment microcosms to controls on day 7 (Tables S6 and S7).…”

Section: Methodsmentioning

confidence: 99%

Impact of corrosion inhibitors on antibiotic resistance, metal resistance, and microbial communities in drinking water

Kimbell,

LaMartina,

Kohls

et al. 2023

mSphere

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Corrosion inhibitors, including zinc orthophosphate, sodium orthophosphate, and sodium silicate, are commonly used to prevent the corrosion of drinking water infrastructure. Metals such as zinc are known stressors for antibiotic resistance selection, and phosphates can increase microbial growth in drinking water distribution systems (DWDS). Yet, the influence of corrosion inhibitor type on antimicrobial resistance in DWDS is unknown. Here, we show that sodium silicates can decrease antibiotic resistant bacteria (ARB) and antibiotic-resistance genes (ARGs), while zinc orthophosphate increases ARB and ARGs in source water microbial communities. Based on controlled bench-scale studies, zinc orthophosphate addition significantly increased the abundance of ARB resistant to ciprofloxacin, sulfonamides, trimethoprim, and vancomycin, as well as the genes sul1 , qac EΔ1, an indication of resistance to quaternary ammonium compounds, and the integron-integrase gene intI 1. In contrast, sodium silicate dosage at 10 mg/L resulted in decreased bacterial growth and antibiotic resistance selection compared to the other corrosion inhibitor additions. Source water collected from the drinking water treatment plant intake pipe resulted in less significant changes in ARB and ARG abundance due to corrosion inhibitor addition compared to source water collected from the pier at the recreational beach. In tandem with the antibiotic resistance shifts, significant microbial community composition changes also occurred. Overall, the corrosion inhibitor sodium silicate resulted in the least selection for antibiotic resistance, which suggests it is the preferred corrosion inhibitor option for minimizing antibiotic resistance proliferation in DWDS. However, the selection of an appropriate corrosion inhibitor must also be appropriate for the water chemistry of the system (e.g., pH, alkalinity) to minimize metal leaching first and foremost and to adhere to the lead and copper rule. IMPORTANCE Antibiotic resistance is a growing public health concern across the globe and was recently labeled the silent pandemic. Scientists aim to identify the source of antibiotic resistance and control points to mitigate the spread of antibiotic resistance. Drinking water is a direct exposure route to humans and contains antibiotic-resistant bacteria and associated resistance genes. Corrosion inhibitors are added to prevent metallic pipes in distribution systems from corroding, and the type of corrosion inhibitor selected could also have implications on antibiotic resistance. Indeed, we found that sodium silicate can minimize selection of antibiotic resistance while phosphate-based corrosion inhibitors can promote antibiotic resistance. These findings indicate that sodium silicate is a preferred corrosion inhibitor choice for mitigation of antibiotic resistance.

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Section: Methodsmentioning

confidence: 99%

Impact of corrosion inhibitors on antibiotic resistance, metal resistance, and microbial communities in drinking water

Kimbell,

LaMartina,

Kohls

et al. 2023

mSphere

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show abstract

“…This initial film can alter the electrostatic charges and wettability of the metal surface, facilitating its further colonization by bacteria and the development of a biofilm . A biofilm is a population of cells embedded in a thick mucilaginous matrix of extracellular polymeric substances (EPS) which facilitate the irreversible attachment of cells to the surface, inorganic precipitates derived from the bulk aqueous phase and/or corrosion products of the metal substratum as well as different transport processes and chemical reactions occurring at the biofouled interface . The initial interphase formed between the culture medium (without bacteria) and the metal surface is drastically changed after the inoculation of bacteria.…”

Section: Discussionmentioning

confidence: 99%

Corrosion behavior of surface modifications on titanium dental implant. In situ bacteria monitoring by electrochemical techniques

et al. 2017

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The effects of surface modifications and bacteria on the corrosion behavior of titanium have been studied. Five surface modifications were analyzed: two acid etchings (op V, op N), acid etching + anodic oxidation (op NT), sandblasting + acid etching (SLA), and machined surfaces (mach). The corrosion behavior of the surface modifications was evaluated by following the standard ANSI/AAMI/ISO 10993-15:2000. Cyclic potentiodynamic and potentiostatic anodic polarization tests and ion release by ICP-OES after immersion for 7 days in 0.9% NaCl were carried out. Microbiologically induced corrosion (MIC) of low and high roughness (mach, op V) was assessed in situ by electrochemical techniques. Streptococcus mutans bacteria were resuspended in PBS at a concentration of 3 × 10 bacteria mL and maintained at 37°C. MIC was measured through the open circuit potential, E , and electrochemical impedance spectroscopy from 2 to 28 days. Potentiodynamic curves showed the typical passive behavior for all the surface modifications. The titanium ion release after immersion was below 3 ppb. In situ bacteria monitoring showed the decrease in E from -0.065 (SD 0.067) V in mach and -0.115 (SD 0.084) V in op V, to -0.333 (SD 0.147) V in mach and -0.263 (SD 0.005) V in op V, after 2 and 28 days, respectively. A reduction of the oxide film resistance, especially in op V (54 MΩ cm and 6 MΩ cm , after 2 and 28 days, respectively) could be seen. Streptococcus mutans negatively affected the corrosion resistance of titanium. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 997-1009, 2018.

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“…Bu durum yüzeyde bir biyofilm tabakasının oluşmasından ve zamanla olgunlaşmasından kaynaklanabilir. 1., 2. ve 3. aylara ait fazfrekans eğrilerinin faz açılarının yüksek değerlerden başlamış olması ise, olgunlaşma sürecindeki bu biyofilm tabakasının por içerdiğine işaret etmektedir [12]. Faz-frekans eğrilerine göre 0.5 sa (0. ay) ait olan eğrinin faz açısının yüksek değerde ve orta frekans bölgesinde bir lupa sahip olduğu, diğer aylarda ise lupların yüksek frekans bölgesine doğru kaydığı tespit edilmiştir.…”

Section: Bulgular Ve Tartişma (Findings and Discussion)unclassified

Bi̇yofi̇lm Oluşumunun Galvani̇zli̇ Çeli̇ği̇n Bi̇yokorozyonuna Etki̇si̇ni̇n Elektroki̇myasal Yöntemlerle İncelenmesi̇

Ünsal¹,

Sungur²,

Cansever³

2017

NWSA

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The aim of this study was to investigate the morphology, structure and resistance of the biofilm including mixed bacterial population formed on the galvanized steel surfaces in a model water circulation system by electrochemical methods and to determine the effect of biofilm formation on the corrosion behavior of galvanized steel. The model water circulation system simulating a real cooling tower was run by maintaining uninterrupted supply of water for 3 months. The resistance of biofilm formed on the surface of the galvanized steels, which were removed from the model water circulation system montly, was determined by using electrochemical impedance spectroscopy (EIS). Polarization curves for each coupons were drawn. The biofilm formation and corrosion products were investigated by using scanning electron microscopy (SEM). As a result, it was determined that the structure and resistance of biofilm formed on the galvanized steel surfaces was different in each exposure time and thus the corrosion behavior of galvanized steel surfaces was changed according to time.

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Microbiologically influenced corrosion of galvanized steel by Desulfovibrio sp. and Desulfosporosinus sp. in the presence of Ag–Cu ions

Cited by 23 publications

References 36 publications

Impact of corrosion inhibitors on antibiotic resistance, metal resistance, and microbial communities in drinking water

Impact of corrosion inhibitors on antibiotic resistance, metal resistance, and microbial communities in drinking water

Corrosion behavior of surface modifications on titanium dental implant. In situ bacteria monitoring by electrochemical techniques

Bi̇yofi̇lm Oluşumunun Galvani̇zli̇ Çeli̇ği̇n Bi̇yokorozyonuna Etki̇si̇ni̇n Elektroki̇myasal Yöntemlerle İncelenmesi̇

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