Polymetallic Coatings To Control Biofouling In Pipelines
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Polymetallic Coatings To Control Biofouling In Pipelines
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Author : Vinita Vishwakarma
language : en
Publisher: CRC Press
Release Date : 2021-09-13
Polymetallic Coatings To Control Biofouling In Pipelines written by Vinita Vishwakarma and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-09-13 with Science categories.
Most of the pipelines used for the transport of various fluids are susceptible to the formation of biofilms, and the undesirable accumulation of microorganisms in pipelines leads to biodeterioration and increases the maintenance cost of the pipelines. This book focuses on nanostructured polymetallic coatings for corrosion and biofouling protection in offshore oil and gas pipelines, marine pipelines, ship structures and port facilities, and corrosion resistance surfaces of several engineered structures. Considering various reasons of biofouling in pipelines that transport crude and refined petroleum, gas, biofuels, and other fluids including sewage, slurry, and water for drinking or irrigation, the underlying mechanism is thoroughly explained. A comparison of various protective techniques is also highlighted for the choice of methods for specific applications. Features: Provides information on biofouling control with broad significance and applicability in various industrial and research areas. Discusses microbially induced corrosion on biofuel transporting pipelines. Includes data from experiments conducted to overcome biofouling and biocorrosion. Gives out particular attention to metallic coatings and environmental considerations. Explores novel technologies preventing biofouling on metallic and polymeric substrates. This book is for researchers and graduate students in Coatings and Paints, Microbiology, Bioprocess Engineering, Biotechnology, Industrial Engineering, Mechanical and Chemical Engineering, Marine Engineering, Surface and Corrosion Engineering, and Water and Wastewater Treatment.
Etica O Estado A Pessoa
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Author : Artur Victoria
language : pt-BR
Publisher: Edições Esgotadas
Release Date : 2022-06-01
Etica O Estado A Pessoa written by Artur Victoria and has been published by Edições Esgotadas this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-06-01 with Political Science categories.
O livro “Ética-O Estado-A Pessoa” de Artur Victoria lança luz, com a sua reflexão, sobre a ética em diferentes estágios das pessoas na sociedade e sugere como governos e Estados devem agir, convidando, simultaneamente, os leitores a questionar a conduta dos detentores do poder e dos leigos no mundo. Considerando que a Moral e a Ética são os principais instrumentos para resolver os problemas atuais, o autor atribui ao Estado um papel central na tomada de decisões que desafiam o mundo dinâmico e instável do século XXI. Nesta perspetiva, são discutidas as responsabilidades e as funções fundamentais dos Estados, bem como o significado da Ética e da moralidade para o público. A realidade dos nossos dias tem mostrado que as organizações e os governos, por vezes, se esquecem da Moral e da Ética, facto que legitima os cidadãos para assumirem o protagonismo na definição dos seus rumos, em direção a um futuro sustentável e seguro. Este livro representa não só a ajuda que faltava para que os leitores possam ter uma visão clara de todas as questões que devem ser refletidas, mas também abre um excelente campo de replicação para economistas, filósofos, políticos, tecnocratas e profissionais.
Bioactive Coatings To Control Marine Biofouling
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Author : Mariana Patricia Tasso
language : en
Publisher:
Release Date : 2009
Bioactive Coatings To Control Marine Biofouling written by Mariana Patricia Tasso and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with categories.
Advances In Marine Antifouling Coatings And Technologies
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Author : Claire Hellio
language : en
Publisher: Elsevier
Release Date : 2009-05-22
Advances In Marine Antifouling Coatings And Technologies written by Claire Hellio and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-05-22 with Technology & Engineering categories.
Marine biofouling can be defined as the undesirable accumulation of microorganisms, algae and animals on structures submerged in seawater. From the dawn of navigation, marine biofouling has been a major problem for shipping in such areas as reduced speed, higher fuel consumption and increased corrosion. It also affects industries using off-shore structures such as oil and gas production and aquaculture. Growing concerns about the environmental impact of antifouling coatings has led to major new research to develop more environmentally-friendly alternatives. Advances in marine antifouling coatings and technologies summaries this wealth of research and its practical implications.This book is divided into four sub-sections which discuss: marine fouling organisms and their impact, testing and development of antifouling coatings, developments in chemically-active marine antifouling technologies, and new surface approaches to the control of marine biofouling. It provides an authoritative overview of the recent advances in understanding the biology of fouling organisms, the latest developments on antifouling screening techniques both in the field and in the laboratory, research on safer active compounds and the progress on nontoxic coatings with tailor-made surface properties.With its distinguished editors and international team of contributors, Advances in marine antifouling coatings and technologies is a standard reference for manufacturers of marine antifouling solutions, the shipping industry, oil and gas producers, aquaculture and other industries using offshore structures, and academics researching this important area. - Assesses marine antifouling organisms and their impact, including a historical review and directions for future research - Discusses developments in antifouling coatings examining chemically-active and new surface approaches - Reviews the environmentally friendly alternative of safer active compounds and the progress of non-toxic compounds
Antiadhesive And Antibacterial Coatings For Biofouling Control
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Author : Catalina S. Marimbio Jones
language : en
Publisher:
Release Date : 2014
Antiadhesive And Antibacterial Coatings For Biofouling Control written by Catalina S. Marimbio Jones and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.
Biofouling in membrane technologies accounts for up to 50% of operational costs; its main effects include flux decline, increased required pressure, expensive pretreatment requirements, cleaning-related production interruptions and accelerated membrane replacing. Despite the efforts, current biofouling control strategies, such as feed water disinfection and chemical cleaning have not entirely solved the problem. Therefore, new approaches are being developed. Since biofouling is a biofilm based phenomena, which starts from an initial reversible bacterial adhesion, followed by irreversible attachment, cell reproduction and finally biofilm formation; it is hypothesized that preventing the initial bacterial adhesion would stop biofouling. This research exploits this idea by creating cross-linked polyvinyl alcohol (PVA) coating films with low bacterial adhesion propensity, which are subsequently embedded with antibacterial cation-exchanged zeolites (LTA), forming antibacterial nanocomposites able to inactivate bacteria from replication. A combinatorial array of PVA films and nanocomposites were prepared with varying degree of polymerization, hydrolysis and cross-linking, as well as, different cross-linking agents, zeolite loadings and antibacterial ion utilized. Then, model bacteria reversible-irreversible adhesion and inactivation rates were analyzed, utilizing a high throughput based assay, in several aquatic matrices. Determined free energy of adhesion and cohesion showed that most PVA films were hydrophilic and had low propensity to bacterial adhesion. Less cross-linked PVA films prepared from less hydrolyzed PVA produced more adhesion resistant films. PVA molecular weight or cross-linking agent did not affect significantly the outcomes. Overall, the bacterial attachments decreased with increasing free energies, but correlations were low because of large adhesions variability. This leaded to concluded that physical heterogeneity of the films, like nanoscale features formation, were significant in the biofouling propensity. The effect of embedded zeolites on bacterial adhesion varied with the type of antibacterial ion and zeolite loads. Nanocomposites with Ag-LTA (10%) or Zn-LTA and the combined AgCuZn-LTA had lower irreversible adhesion than corresponding PVA films. While, Cu-LTA worsened the antiadhesive properties, because of a higher surface roughness and a higher rate of inactivation; that left more dead cells, which are more prone to adhesion, on the nanocomposite surface. Overall, irreversible adhesions correlated more strongly with surface roughness than free energy of adhesion.
Assessment Of Pipeline Coatings For External Corrosion Control
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Author : F. W. Hewes
language : en
Publisher:
Release Date : 1974
Assessment Of Pipeline Coatings For External Corrosion Control written by F. W. Hewes and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1974 with Pipelines categories.
Pipeline Coatings
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Author : Y. Frank Cheng
language : en
Publisher:
Release Date : 2019-06-20
Pipeline Coatings written by Y. Frank Cheng and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-06-20 with Coating processes categories.
Starts with a history of generic pipeline coating types and technical information about use. Practical information about selection and evaluation for each type of coating system is provided. Discussion of how coatings work with cathodic protection, CP shielding by coatings and other related issues with the various coating systems related to CP.
Marine Coatings And Membranes
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Author :
language : en
Publisher:
Release Date : 2019
Marine Coatings And Membranes written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with categories.
Marine biofouling on surfaces is a global problem with detrimental effects. Some of the common issues associated with biofouling include higher fuel consumption for marine vessels, corrosion, emission of greenhouse gases, etc. Coatings represent one of the important strategies to achieve protection against biofouling and its effects due to the incorporation of novel materials as matrices. In this respect, the book aims to present many functional marine coatings systems developed in the recent years to achieve effective protection against biofouling. Recently, membrane technology has also gained interest because of simple and environmentally friendly approach for seawater treatment. Thus, the book also focuses on the recent developments gained in this area. The book is a valuable reference for polymer, chemical, biochemical and materials engineers, as well as practicing scientists and researchers in both academia and industry. It is also a useful resource for postgraduate university students in chemical, polymer and materials disciplines, along with interdisciplinary streams. For more details, please visit https://centralwestpublishing.com.
Advanced Nontoxic Fouling Release Coatings
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Author :
language : en
Publisher:
Release Date : 1999
Advanced Nontoxic Fouling Release Coatings written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with categories.
Historically, marine antifouling paints have used compounds toxic to marine organisms as a means of combating fouling. Foul-release coatings don't use copper or any other metal toxicant to provide effective biofouling control; rather their unique surface chemistry creates a surface to which fouling can not easily adhere. Because they employ a physical rather than a chemical means to reduce fouling, these silicone coatings have been ruled exempt from reporting under FIFRA (Public Law 95-396). NRL developed and patented an advanced foul-release coating system called the duplex silicone coating system to address the durability issues associated with silicone elastomeric coatings. This system employs a tough, cross-linked thermoplastic elastomeric layer (Silgan J501, Wacker Chemie, Ltd.) to bond the foul-release silicone topcoat to the anticorrosive system for ship hulls or to epoxy paint on concrete walls in power plants. The ESTCP demonstrations/validations included 6 Coast Guard aluminum hull boats, 2 Navy Range Boats, a Navy Transporter, an ONR/Lockheed prototype (SLICE) and power plant cooling water intakes (concrete walls, steel trash racks/traveling screens/deflecting veins). Barnacle adhesion measurements (ASTM D 5618-94). Barnacle adhesion measurements and water jet cleaning were developed as part of this project.