Spectroscopic Study of Sulfate Reducing Bacteria-Metal Ion Interactions Related to Microbiologically Influenced Corrosion (MIC) PDF Download
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Author: CR. Clayton Publisher: ISBN: Category : Materials Languages : en Pages : 12
Book Description
It has long been recognized that sulfate reducing bacteria (SRB) found in natural and industrial waste waters promote microbiologically influenced corrosion (MIC) of certain metals and alloys. Corrosion may be enhanced biologically, through direct enzymatic action of the bacteria, or abiotically, as a result of reaction with metabolic byproducts or changes in local conditions (for example, pH) brought about by bacterial activity. In this study, X-ray photoelectron spectroscopy (XPS) is utilized in conjunction with conventional microbiological and quantitative chemical analytical techniques to analyze the effects of localized environmental conditions similar to those found near the surface of a passive stainless steel on the behavior of SRB, and to determine the ability of these bacteria to alter local environmental conditions in such a way as to create conditions that accelerate corrosion. Specifically, the interactions of Fe, Cr, Ni and Mo ions with Desulfovibrio sp. under anoxic conditions were studied in order to determine the influence of passive dissociation products on the extent of sulfate reduction and to determine the resulting speciation of the metal ions and sulfur. In all cases, XPS revealed the presence of multiple reduced sulfur species (SC2-3, elemental S and S2), as well as reduction of both the molybdate and ferric ions. Localized reduction in pH due to SRB metabolic activity was presumed to play a role in the formation of stable molybdenum disulfide and ferrous species.
Author: CR. Clayton Publisher: ISBN: Category : Materials Languages : en Pages : 12
Book Description
It has long been recognized that sulfate reducing bacteria (SRB) found in natural and industrial waste waters promote microbiologically influenced corrosion (MIC) of certain metals and alloys. Corrosion may be enhanced biologically, through direct enzymatic action of the bacteria, or abiotically, as a result of reaction with metabolic byproducts or changes in local conditions (for example, pH) brought about by bacterial activity. In this study, X-ray photoelectron spectroscopy (XPS) is utilized in conjunction with conventional microbiological and quantitative chemical analytical techniques to analyze the effects of localized environmental conditions similar to those found near the surface of a passive stainless steel on the behavior of SRB, and to determine the ability of these bacteria to alter local environmental conditions in such a way as to create conditions that accelerate corrosion. Specifically, the interactions of Fe, Cr, Ni and Mo ions with Desulfovibrio sp. under anoxic conditions were studied in order to determine the influence of passive dissociation products on the extent of sulfate reduction and to determine the resulting speciation of the metal ions and sulfur. In all cases, XPS revealed the presence of multiple reduced sulfur species (SC2-3, elemental S and S2), as well as reduction of both the molybdate and ferric ions. Localized reduction in pH due to SRB metabolic activity was presumed to play a role in the formation of stable molybdenum disulfide and ferrous species.
Author: Jeffery R. Kearns Publisher: ASTM International ISBN: 0803118929 Category : Electrochemistry Languages : en Pages : 298
Book Description
The proceedings of the First International Symposium on [title], held in Miami during November of 1992, comprise a keynote address and 21 papers arranged in six topical sections: electrochemical methods; on-line monitoring methods; surface analysis techniques; SRB characterization; non-metallic mate
Author: Publisher: ISBN: Category : Languages : en Pages : 8
Book Description
It has long been recognized that Sulphate Reducing Bacteria (SRB) found in natural and industrial waste waters promote Microbiologically Influenced Corrosion (MIC) of certain metals and alloys. X-ray Photoelectron Spectroscopy (XPS) is used in conjunction with conventional microbiological and quantitative chemical analytical techniques to better understand the effect of environmental conditions on microbial behavior as well as the ability of SRB to alter local environmental conditions (such as pH) in such a way as to accelerate corrosion. Specifically, the interactions of Fe, Cr, Ni and Mo ions with Desulfovibrio sp. under anoxic conditions were studied in order to determine the resulting speciation of the metal ions and sulfur.
Author: Myer Kutz Publisher: William Andrew ISBN: 1437734561 Category : Technology & Engineering Languages : en Pages : 934
Book Description
Nothing stays the same for ever. The environmental degradation and corrosion of materials is inevitable and affects most aspects of life. In industrial settings, this inescapable fact has very significant financial, safety and environmental implications. The Handbook of Environmental Degradation of Materials explains how to measure, analyse, and control environmental degradation for a wide range of industrial materials including metals, polymers, ceramics, concrete, wood and textiles exposed to environmental factors such as weather, seawater, and fire. Divided into sections which deal with analysis, types of degradation, protection and surface engineering respectively, the reader is introduced to the wide variety of environmental effects and what can be done to control them. The expert contributors to this book provide a wealth of insider knowledge and engineering knowhow, complementing their explanations and advice with Case Studies from areas such as pipelines, tankers, packaging and chemical processing equipment ensures that the reader understands the practical measures that can be put in place to save money, lives and the environment. The Handbook’s broad scope introduces the reader to the effects of environmental degradation on a wide range of materials, including metals, plastics, concrete,wood and textiles For each type of material, the book describes the kind of degradation that effects it and how best to protect it Case Studies show how organizations from small consulting firms to corporate giants design and manufacture products that are more resistant to environmental effects
Author: Stanley Falkow Publisher: Springer Science & Business Media ISBN: 0387254765 Category : Science Languages : en Pages : 1003
Book Description
The revised Third Edition of The Prokaryotes, acclaimed as a classic reference in the field, offers new and updated articles by experts from around the world on taxa of relevance to medicine, ecology and industry. Entries combine phylogenetic and systematic data with insights into genetics, physiology and application. Existing entries have been revised to incorporate rapid progress and technological innovation. The new edition improves on the lucid presentation, logical layout and abundance of illustrations that readers rely on, adding color illustration throughout. Expanded to seven volumes in its print form, the new edition adds a new, searchable online version.
Author: C.A.C. Sequeira Publisher: CRC Press ISBN: 1000717062 Category : Technology & Engineering Languages : en Pages : 427
Book Description
First published in 1995. This is the proceedings of the third international workshop on Microbial Corrosion by the European Federation of Corrosion. Split into four sections covering an Interdisciplinary Approach to Microbially Influenced Corrosion of Copper; Microbial Corrosion: Mechanisms and General Studies; Case Studies, and Microbial Corrosion: Prevention and Control.
Author: Brenda J. Little Publisher: John Wiley & Sons ISBN: 0470112441 Category : Science Languages : en Pages : 295
Book Description
A multi-disciplinary, multi-industry overview of microbiologically influenced corrosion, with strategies for diagnosis and control or prevention Microbiologically Influenced Corrosion helps engineers and scientists understand and combat the costly failures that occur due to microbiologically influenced corrosion (MIC). This book combines recent findings from diverse disciplines into one comprehensive reference. Complete with case histories from a variety of environments, it covers: Biofilm formation Causative organisms, relating bacteria and fungi to corrosion mechanisms for groups of metals Diagnosing and monitoring MIC Electrochemical techniques, with an overview of methods for detection of MIC The impact of alloying elements, including antimicrobial metals, and design features on MIC MIC of non-metallics Strategies for control or prevention of MIC, including engineering, chemical, and biological approaches This is a valuable, all-inclusive reference for corrosion scientists, engineers, and researchers, as well as designers, managers, and operators.
Author: Cody Jay Allen Publisher: ISBN: Category : Languages : en Pages : 0
Book Description
The annual financial impact on the oil and gas industry amounts to tens of billions of dollars, attributable to treatment costs directly and indirectly linked to corrosion. Approximately 20% of these corrosion-related damages are attributed to microbial-induced corrosion. During microbial-induced corrosion, microbes typically promote conditions that produce acids, converting metal oxide layers to a less protective metal sulfide or localizing anode and cathodes on a material. Due to the different disciplines required to research microbial-induced corrosion, different vocabularies and research approaches occur. The lack of clarity resulting from this situation, in turn, causes many questions to go unanswered. Notably, electroactive bacteria are not commonly studied transiently, meaning their growth dynamics' relationship to electrochemical activity over time is poorly understood. The major drawback is that no dynamic live studies are performed, making the distinction between biofilm-influenced corrosion and abiotic corrosion hard to differentiate. The electrode-biofilms interface is either optically or electrochemically researched. The disconnection between biology and electrochemical activity leads to a series of unknown parameters that link them. Lack of understanding of real-time interactions at bio-interface leads to microbial-induced corrosion knowledge gap. Here, we utilize a specially designed biological microelectromechanical microfluidic device, two-working electrode Scanning Electrochemical Microscopy, and molecular imprinted polymer-based sensors to improve the understanding of transient bio-interface interactions. These devices and techniques were established to study three domains: biofilm probing, biofilm dynamics, and biofilm sensing during the initial stages of microbial-induced corrosion. By utilizing these tools, we were able to observe a direct real-time correlation between the morphological characteristics of biofilm and the escalation of corrosion rates in microbial-induced corrosion. Additionally, we also observed the spatial distribution of redox-active quasi-quorum sensing molecules and their direct correlation to the heightened corrosion rates. This research is a significant advancement in our understanding of the complex interplay between microbial activity and corrosion processes, and it provides crucial insights for devising effective corrosion mitigation strategies in a wide range of industrial settings.
Author: Publisher: ISBN: Category : Languages : en Pages : 16
Book Description
It has long been recognized that sulfate reducing bacteria (SRB) found in natural and industrial waste waters promote microbiologically influenced corrosion (MIC) of certain metals and alloys. Corrosion may be enhanced biologically, through direct enzymatic action of the bacteria, or abiotically, as a result of reaction with metabolic byproducts or change in local conditions (for example, pH) brought about by bacterial activity. In this study, X-ray photoelectron spectroscopy (XPS) is utilized in conjunction with conventional microbiological and quantitative chemical analytical techniques to analyze the effects of localized environmental conditions similar to those found near the surface of a passive stainless steel on the behavior of SRB, and to determine the ability of these bacteria to alter local environmental conditions in such a way as to create conditions that accelerate corrosion. Specifically, the interactions of Fe, Cr, Ni, and mo ions with Desulfovibrio sp. under anoxic conditions were studied in order to determine the influence of passive dissociation products on the extent of sulfate reduction and to determine the resulting speciation of the metal ions and sulfur.
Author: Jeffery R. Kearns Publisher: ASTM International ISBN: 0803118929 Category : Electrochemistry Languages : en Pages : 298
Book Description
The proceedings of the First International Symposium on [title], held in Miami during November of 1992, comprise a keynote address and 21 papers arranged in six topical sections: electrochemical methods; on-line monitoring methods; surface analysis techniques; SRB characterization; non-metallic mate
Author: CR. Clayton
Author: CR. Clayton
Author: Jeffery R. Kearns
Author: 
Author: Myer Kutz
Author: Stanley Falkow
Author: C.A.C. Sequeira
Author: Brenda J. Little
Author: Cody Jay Allen
Author: 
Author: Jeffery R. Kearns