scholarly journals Abundance of Fe(III) during cultivation affects the microbiologically influenced corrosion (MIC) behaviour of iron reducing bacteria Shewanella putrefaciens

2020 ◽  
Vol 174 ◽  
pp. 108855
Author(s):  
Nina Wurzler ◽  
Jan David Schutter ◽  
Ralph Wagner ◽  
Matthias Dimper ◽  
Dirk Lützenkirchen-Hecht ◽  
...  
Keyword(s):  
Shewanella Putrefaciens ◽  
Microbiologically Influenced Corrosion ◽  
Iron Reducing Bacteria ◽  
Reducing Bacteria

scholarly journals Microbiologically Influenced Corrosion of Iron by Nitrate Reducing Bacillus Sp

2021 ◽  
Vol 2129 (1) ◽  
pp. 012066
Author(s):  
Muhammad Aiman Faiz Mohd Zaidi ◽  
Mohammad Najmi Masri ◽  
Wee Seng Kew
Keyword(s):  
Nitrate Reduction ◽  
Microbiologically Influenced Corrosion ◽  
Economic Damage ◽  
Iron Nitrate ◽  
Bacillus Sp ◽  
Iron Reducing Bacteria ◽  
Industrial Sectors ◽  
Human Ecosystem ◽  
Corrosion Of Iron ◽  
Reducing Bacteria

Abstract Iron has played a crucial role in the human ecosystem currently in transportation, manufacturing, and infrastructure. Iron oxide is known as rust, usually the reddish-brown oxide formed by iron and oxygen reactions in moisture from water or air. Microbiologically influenced corrosion (MIC) is a significant problem to the economic damage, especially in industrial sectors and its direct presence with nitrate/iron-reducing bacteria. This paper aims to explore the MIC of iron by nitrate-reducing Bacillus sp. including the redox reaction occurs, microbiologically influenced corrosion, iron/nitrate-reducing and mechanisms of microbial iron/nitrate reduction.

scholarly journals Effect of Sulfate-Reducing Bacteria (SRB) on the Corrosion of Buried Pipe Steel in Acidic Soil Solution

Coatings ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 625
Author(s):  
Lijuan Chen ◽  
Bo Wei ◽  
Xianghong Xu
Keyword(s):  
Soil Solution ◽  
Steel Surface ◽  
Pipeline Steel ◽  
Electrochemical Techniques ◽  
Sulfate Reducing Bacteria ◽  
Acidic Soil ◽  
Microbiologically Influenced Corrosion ◽  
Soil Environment ◽  
Sulfate Reducing ◽  
Reducing Bacteria

The influence of sulfate-reducing bacteria (SRB) on the corrosion behaviors of X80 pipeline steel was investigated in a soil environment by electrochemical techniques and surface analysis. It was found that SRB grew well in the acidic soil environment and further attached to the coupon surface, resulting in microbiologically influenced corrosion (MIC) of the steel. The corrosion process of X80 steel was significantly affected by the SRB biofilm on the steel surface. Steel corrosion was inhibited by the highly bioactive SRB biofilm at the early stage of the experiment, while SRB can accelerate the corrosion of steel at the later stage of the experiment. The steel surface suffered severe pitting corrosion in the SRB-containing soil solution.

Metagenomics Microbial Characterization of Production and Process Fluids in the Powder River Basin: Identification and Sources of Problematic Microorganisms Associated with SWD Facilities

2021 ◽  
Author(s):  
Michael Enzien ◽  
Sadie Starustka ◽  
Michael Gurecki ◽  
Trinity Fincher-Miller ◽  
Bryce Kuhn ◽  
...  
Keyword(s):  
Produced Water ◽  
Salt Water ◽  
Microbiologically Influenced Corrosion ◽  
Process Equipment ◽  
Drilling Fluids ◽  
Well Performance ◽  
Field Sample ◽  
Degrading Bacteria ◽  
Produced Waters ◽  
Reducing Bacteria

Abstract Inconsistent bacterial control and monitoring led to variability in Salt Water Disposal (SWD) well performance and injectivity creating excess costs in biocide applications and remedial work. A metagenomics study using Whole Genome Sequencing (WGS) was conducted to determine the source(s) of problematic microorganisms throughout the process life cycle: Freshwater> Drilling> Completion> Flowback> Produced water> SWD. A total of 30 metagenomes were collected from the 6 process stages and identification and quantification of the major microbial taxa from each of these stages were identified. "Taxonomy to Function" associations were identified for all the major taxa found in the SWD fluids. WGS was performed on positive Sulfate Reducing Bacteria (SRB) and Acid Producing Bacteria (APB) media bottles inoculated in the field for a Flowback sample. Four of the six major taxa found in SWD samples are considered groups of microorganisms known to cause microbiologically influenced corrosion (MIC): Clostridia, methanogens, SRB and Iron Reducing bacteria. Thermovirga and Thermotagae, were the two most abundant taxa found in SWD samples, both thermophilic halophilic fermenting bacteria. The Fe reducing bacteria Shewanella was only detected in Drilling and SWD fluids suggesting its source was Drilling fluids. Completion fluid metagenome profiles from two separate sites followed similar patterns. During middle of completions Proteobacteria phyla were dominant taxa represented mostly by Pseudomonas. Other abundant phyla were all characteristic of polymer degrading bacteria. None of these taxa were dominant populations identified in SWD waters. Fresh water only shared similar taxa with Drilling and Completion fluids. A few minor taxa from Drilling and Completion stages show up as significant taxa in SWD fluids. The majority of taxa found in SWD samples appear to originate from Flowback and Produced waters, although at lower abundances than found in SWD samples. It cannot be determined if the microorganisms found in Flowback and Produced waters were endemic to the formation or come from contaminated source waters, i.e. process equipment used to store and transport water sources. Petrotoga mobilis was the dominant population of bacteria that grew in both media bottles, 96% and 77% for SRB and APB, respectively, while Petrotoga was detected at 14% in the field sample. The most abundant bacteria detected in field sample were Clostridia (38%) while only 2.7% were detected in APB media. SRB media bottle had 0.18% SRB detected by WGS; APB media had 9% SRB population abundance. No SRB were detected in corresponding field sample or below detectable limits (BDL) for WGS methods (<0.01%). WGS was forensically used to successfully identify type and source of problematic microorganism in SWD facilities. Results from media bottle and field sample comparisons stress the importance of developing improved field monitoring techniques that more accurately detect the dominant microorganisms.

Solubilization of Plutonium Hydrous Oxide by Iron-Reducing Bacteria

1994 ◽  
Vol 28 (9) ◽  
pp. 1686-1690 ◽  
Author(s):  
Patricia A. Rusin ◽  
Leticia. Quintana ◽  
James R. Brainard ◽  
Betty A. Strietelmeier ◽  
C. Drew. Tait ◽  
...  
Keyword(s):  
Hydrous Oxide ◽  
Iron Reducing Bacteria ◽  
Reducing Bacteria

Physiochemical, mineralogical, and isotopic characterization of magnetite-rich iron oxides formed by thermophilic iron-reducing bacteria

1997 ◽  
Vol 61 (21) ◽  
pp. 4621-4632 ◽  
Author(s):  
Chuanlun Zhang ◽  
Shi Liu ◽  
Tommy J. Phelps ◽  
Dave R. Cole ◽  
Juske Horita ◽  
...  
Keyword(s):  
Iron Oxides ◽  
Iron Reducing Bacteria ◽  
Isotopic Characterization ◽  
Reducing Bacteria
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