... communities of microorganisms or biofilms, these serial dilution tests are frequently conducted using liquid samples. Despite frequent false positives and false negatives, ⁶ these tests continue to be employed for the identification of SRB, APB, and GHB and eventually MIC. Furthermore, these tests...

...Abstract Microbiologically Influenced Corrosion (MIC) and biofouling are major challenges to operators who manage water systems in the oil & gas and other sectors. Key to these threats is the formation and accumulation of biofilms in piping systems due to the agglomeration of both biotic...

... of the contamination, biocide recommendation, and subsequent field optimization of the dose and dose rate. Planktonic kill studies used to select biocides for a certain application may often result in the selection of a biocide that reduces the planktonic microbial population without affecting the problematic biofilm...

...Abstract The presence of solids with nutrients that can support the growth of microbial communities may lead to microbially influenced corrosion (MIC) in carbon steel pipelines. Many factors affect MIC rates, for example, biofilms in pipeline sludges can produce corrosive chemicals that can attack...

...A south Texas production facility was experiencing severe MIC throughout their produced water handling systems. In particular, the parts of the system that were not piggable were particularly susceptible. In these areas, chemical removal of biofilms and solids is the only practical option...

...Abstract Stainless steel (SS), the workhorse material for diverse industrial applications is susceptible to localized corrosion, and failures of components occur with through wall pitting even in low chloride environments especially under the influence of biofilms. An attempt was made to look...

... was added to a biofilm reactor seen in Figure 1   ¹⁴ along with 7mL of modified Postgate media and 0.7mL of sodium lactate. The system (containing UNS G10180 disk coupons) was incubated at 40°C and blanketed under a CO₂ + N₂ blend. To simulate flow conditions, the baffle...

...Abstract The aim of this study was to evaluate the progression of sulfate-reducing bacteria (SRB) biofilms in the presence of biocides simultaneously with bacterial growth and some electrochemical parameters. Hence, a laboratory system was designed to observe directly the progression of sulfate...

... the activity of bacteria can increase, as the effectiveness of the preservation chemicals decays and the seepage of seawater mixes with the volumes of treated fluids. These bacteria will form biofilms on the alloy surface and will likely promote electrochemical reactions that lead to corrosion in a phenomenon...

... by sulfate reducing bacteria (SRB). The biotic reduction of sulfate to hydrogen sulfide occurs in biofilms and sediments under anaerobic conditions in the submerged part of concrete sewer. Chemolitotrophic bacteria of the genus Thiobacillus which grow on most concrete surfaces exposed to sewer...

...Abstract Microorganisms are able to drastically change the electrochemical conditions at the metal/solution interface by biofilm formation including bacterial consortia and extracellular polymeric substances (EPS) as the main components. The presence of biofilms generally facilitates...

...microbiologically influenced corrosion stainless steels seawater localized corrosion biofilms DGGE microbial community structure INTRODUCTION Microbiologically influenced corrosion (MIC) of materials and alloys has been reported for many years. Microorganisms may profoundly influence...

...The already mentioned EPS represent another group of constituents of a biofilm and have been shown to be of high significance for cell adhesion and biofilm formation^{( 1 , 3 , 16 – 18 )}. EPS envelop single cells in the planktonic state and can decrease repulsion between cell...

...Abstract Recent research indicates that the quantification of Sulfate-Reducing Bacteria (SRB) and other corrosive bacteria in biofilms is of great practical and scientific relevance. Common microbial techniques based on selective cell cultivation are of limited usefulness for both quantification...

... to occur is vital. Coupons Abstract Microbiologically influenced corrosion (MIC) has been shown to be a destructive form of corrosion across industries. Since MIC involves the interaction of microbial activity and corrosion processes, monitoring tools can focus on microbes and biofilms, microbial...

... simulate and evaluate conditions that cause biotic pit initiation, using straightforward equipment and procedures. MIC Microbiologically Influenced Corrosion biotic abiotic microbes bacteria pit initiation microbial pitting laboratory methods biofilms SEM confocal TEM microscopy Introduction...

... economically by closely tracking the biocide's effectiveness on biofilm activity using an electrochemical biofilm activity monitor. biocide monitoring biofilms water treatment cooling water BACKGROUND Water treatment, usually with biocides, is the most common approach for mitigation of microbiologically...

... reduced significantly only after 1 h treatment with 0.25 % mustard seed extract. Abstract Biocorrosion and biofouling processes are mediated by microorganisms adhered to metal surfaces or embedded in a gelatinous matrix called a biofilm. Microbial adhesion processes lead to an important modification...

... and Bacillus sp. showed initiation of severe pitting corrosion suggesting the possibility of MIC. As the appearance of pits was different in both the tested strains, it was thought that the mechanisms of corrosion are different. Bacteria Biofilms pitting Microbiologically Influenced Corrosion Stainless...

.... Microorganisms and microbial biofilms are capable of degrading the material and fungi seem to be more effective than bacteria. During degradation, general EIS spectra indicative of microbial attack occur in several steps depending on the chemical composition of polymers. An initial decrease in impedance has been...