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Elaboration Caracterisation Et Etude Des Performances De Nouveaux Adsorbants Hydrophobes
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Book Synopsis Elaboration, caractérisation et étude des performances de nouveaux adsorbants hydrophobes by : Laetitia Majoli
Download or read book Elaboration, caractérisation et étude des performances de nouveaux adsorbants hydrophobes written by Laetitia Majoli and published by . This book was released on 2005 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les composés organiques volatils constituent l'une des principales sources de réaction photochimique dans l'atmosphère qui conduit à de nombreux dangers sur le plan environnemental. Ce phénomène au développement rapide du fait des progrès industriel a provoqué une prise de conscience qui s'est traduite par la mise en place de décrets visant à réduire et contrôler ces émissions. De nombreuses techniques permettant de solutionner ce problème existent mais sont cependant trop coûteuses pour pouvoir être développé industriellement.Aujourd'hui, seule la mise en place d'une unité d'adsorption s'avère intéressante pour les industries : ces installations existent et emploie le charbon actif, adsorbants universel utilisé dans la plupart des procédés de traitement des gaz contaminés par des composés organiques volatils. Toutefois, l'inflammabilité et la friabilité de ces matériaux actifs, leurs durées de vie réduites, ainsi que les difficultés de leur régénération mettent en question leur universalité en tant qu'adsorbants industriels. Il apparaît donc nécessaire de favoriser le développement et l'application d'adsorbants alternatifs dont les propriétés physico-chimiques permettraient de pallier les faiblesses des CA. L'objectif de ces travaux de recherches consiste à élaborer des matériaux hydrophobes sur la base de supports minéraux existant tels que les alumines activées et les zéolithes : la carbonisation de la surface permet de conférer à ces matériaux un caractère hydrophobes tout en respectant un cahier des charges : conservation des propriétés poreuses, une bonne thermorésistance en vue de leur régénération ainsi qu'une dureté élevée permettant une viabilité du produit. Pour ce faire, la méthode Chemical Vapour Deposition a été mise en œuvre : la pyrolyse catalytique non hétérogène a permis de démontrer la faisabilité de cette étude et a conduit à l'élaboration d'un produit SPH 538 E Ac-H présentant une capacité d'adsorption proche du charbon actif et une facilité à désorber les molécules organique. La pyrolyse catalytique a conduit à l'élaboration de nanostructures de carbone sur la bes de catalyseurs d'oxydes métalliques : ces matériaux totalement hydrophobes et parfaitement régénérables présentent des caractéristiques adaptées au domaine analytique. Dans l'optique, d'une éventuelle commercialisation de ces adsorbants hydrophobes, une étude économique permettant d'évaluer le coût de revient de la production de ce produit est présentée.
Book Synopsis Elaboration, caractérisation et étude des performances de nouveaux adsorbants hydrophobes by : Laetitia Majoli
Download or read book Elaboration, caractérisation et étude des performances de nouveaux adsorbants hydrophobes written by Laetitia Majoli and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Les composés organiques volatils constituent l'une des principales sources de réaction photochimique dans l'atmosphère qui conduit à de nombreux dangers sur le plan environnemental. Ce phénomène au développement rapide du fait des progrès industriel a provoqué une prise de conscience qui s'est traduite par la mise en place de décrets visant à réduire et contrôler ces émissions. De nombreuses techniques permettant de solutionner ce problème existent mais sont cependant trop coûteuses pour pouvoir être développé industriellement.Aujourd'hui, seule la mise en place d'une unité d'adsorption s'avère intéressante pour les industries : ces installations existent et emploie le charbon actif, adsorbants universel utilisé dans la plupart des procédés de traitement des gaz contaminés par des composés organiques volatils. Toutefois, l'inflammabilité et la friabilité de ces matériaux actifs, leurs durées de vie réduites, ainsi que les difficultés de leur régénération mettent en question leur universalité en tant qu'adsorbants industriels. Il apparaît donc nécessaire de favoriser le développement et l'application d'adsorbants alternatifs dont les propriétés physico-chimiques permettraient de pallier les faiblesses des CA. L'objectif de ces travaux de recherches consiste à élaborer des matériaux hydrophobes sur la base de supports minéraux existant tels que les alumines activées et les zéolithes : la carbonisation de la surface permet de conférer à ces matériaux un caractère hydrophobes tout en respectant un cahier des charges : conservation des propriétés poreuses, une bonne thermorésistance en vue de leur régénération ainsi qu'une dureté élevée permettant une viabilité du produit. Pour ce faire, la méthode Chemical Vapour Deposition a été mise en œuvre : la pyrolyse catalytique non hétérogène a permis de démontrer la faisabilité de cette étude et a conduit à l'élaboration d'un produit SPH 538 E Ac-H présentant une capacité d'adsorption proche du charbon actif et une facilité à désorber les molécules organique. La pyrolyse catalytique a conduit à l'élaboration de nanostructures de carbone sur la bes de catalyseurs d'oxydes métalliques : ces matériaux totalement hydrophobes et parfaitement régénérables présentent des caractéristiques adaptées au domaine analytique. Dans l'optique, d'une éventuelle commercialisation de ces adsorbants hydrophobes, une étude économique permettant d'évaluer le coût de revient de la production de ce produit est présentée.
Book Synopsis Biochar for Environmental Management by : Johannes Lehmann
Download or read book Biochar for Environmental Management written by Johannes Lehmann and published by Routledge. This book was released on 2012-05-16 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biochar is the carbon-rich product when biomass (such as wood, manure or crop residues) is heated in a closed container with little or no available air. It can be used to improve agriculture and the environment in several ways, and its stability in soil and superior nutrient-retention properties make it an ideal soil amendment to increase crop yields. In addition to this, biochar sequestration, in combination with sustainable biomass production, can be carbon-negative and therefore used to actively remove carbon dioxide from the atmosphere, with major implications for mitigation of climate change. Biochar production can also be combined with bioenergy production through the use of the gases that are given off in the pyrolysis process. This book is the first to synthesize the expanding research literature on this topic. The book's interdisciplinary approach, which covers engineering, environmental sciences, agricultural sciences, economics and policy, is a vital tool at this stage of biochar technology development. This comprehensive overview of current knowledge will be of interest to advanced students, researchers and professionals in a wide range of disciplines.
Book Synopsis Handbook of Enology, Volume 1 by : Pascal Ribéreau-Gayon
Download or read book Handbook of Enology, Volume 1 written by Pascal Ribéreau-Gayon and published by John Wiley & Sons. This book was released on 2006-05-01 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: The "Microbiology" volume of the new revised and updated Handbook of Enology focuses on the vinification process. It describes how yeasts work and how they can be influenced to achieve better results. It continues to look at the metabolism of lactic acid bacterias and of acetic acid bacterias, and again, how can they be treated to avoid disasters in the winemaking process and how to achieve optimal results. The last chapters in the book deal with the use of sulfur-dioxide, the grape and its maturation process, harvest and pre-fermentation treatment, and the basis of red, white and speciality wine making. The result is the ultimate text and reference on the science and technology of the vinification process: understanding and dealing with yeasts and bacterias involved in the transformation from grape to wine. A must for all serious students and practitioners involved in winemaking.
Book Synopsis Water Quality Assessments by : Deborah V Chapman
Download or read book Water Quality Assessments written by Deborah V Chapman and published by CRC Press. This book was released on 1996-08-22 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt: This guidebook, now thoroughly updated and revised in its second edition, gives comprehensive advice on the designing and setting up of monitoring programmes for the purpose of providing valid data for water quality assessments in all types of freshwater bodies. It is clearly and concisely written in order to provide the essential information for all agencies and individuals responsible for the water quality.
Author :U. S. Department Justice Publisher :Createspace Independent Publishing Platform ISBN 13 :9781500674151 Total Pages :0 pages Book Rating :4.6/5 (741 download)
Book Synopsis The Fingerprint by : U. S. Department Justice
Download or read book The Fingerprint written by U. S. Department Justice and published by Createspace Independent Publishing Platform. This book was released on 2014-08-02 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The idea of The Fingerprint Sourcebook originated during a meeting in April 2002. Individuals representing the fingerprint, academic, and scientific communities met in Chicago, Illinois, for a day and a half to discuss the state of fingerprint identification with a view toward the challenges raised by Daubert issues. The meeting was a joint project between the International Association for Identification (IAI) and West Virginia University (WVU). One recommendation that came out of that meeting was a suggestion to create a sourcebook for friction ridge examiners, that is, a single source of researched information regarding the subject. This sourcebook would provide educational, training, and research information for the international scientific community.
Author :M. Victoria Moreno-Arribas Publisher :Springer Science & Business Media ISBN 13 :0387741186 Total Pages :729 pages Book Rating :4.3/5 (877 download)
Book Synopsis Wine Chemistry and Biochemistry by : M. Victoria Moreno-Arribas
Download or read book Wine Chemistry and Biochemistry written by M. Victoria Moreno-Arribas and published by Springer Science & Business Media. This book was released on 2008-11-06 with total page 729 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this book is to describe chemical and biochemical aspects of winemaking that are currently being researched. The authors have selected the very best experts for each of the areas. The first part of the book summarizes the most important aspects of winemaking technology and microbiology. The second most extensive part deals with the different groups of compounds, how these are modified during the various steps of the production process, and how they affect the wine quality, sensorial aspects, and physiological activity, etc. The third section describes undesirable alterations of wines, including those affecting quality and food safety. Finally, the treatment of data will be considered, an aspect which has not yet been tackled in any other book on enology. In this chapter, the authors not only explain the tools available for analytical data processing, but also indicate the most appropriate treatment to apply, depending on the information required, illustrating with examples throughout the chapter from enological literature.
Book Synopsis Modelling in Aquatic Chemistry by : OECD Nuclear Energy Agency
Download or read book Modelling in Aquatic Chemistry written by OECD Nuclear Energy Agency and published by Nuclear Energy Agency. This book was released on 1997 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ICREEC 2019 written by Ahmed Belasri and published by Springer Nature. This book was released on 2020-06-10 with total page 659 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights peer reviewed articles from the 1st International Conference on Renewable Energy and Energy Conversion, ICREEC 2019, held at Oran in Algeria. It presents recent advances, brings together researchers and professionals in the area and presents a platform to exchange ideas and establish opportunities for a sustainable future. Topics covered in this proceedings, but not limited to, are photovoltaic systems, bioenergy, laser and plasma technology, fluid and flow for energy, software for energy and impact of energy on the environment.
Book Synopsis Physicochemical Methods in the Study of Biomembranes by : Herwig J. Hilderson
Download or read book Physicochemical Methods in the Study of Biomembranes written by Herwig J. Hilderson and published by Springer. This book was released on 2012-10-24 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In mammalian cells many physiological processes rely on the dynamics of the organization of lipids and proteins in biological membranes. The topics in this volume deal with physicochemical methods in the study of biomembranes. Some of them have a long and respectable history in the study of soluble proteins and have only recently been applied to the study of membranes. Some have tradi tionally been applied to studies of model systems of lipids of well-defined com position, as well as to intact membranes. Other methods, by their very nature, apply to organized bilayers comprised of both protein and lipid. Van Meer and van Genderen provide us with an introduction to the field (Chapter I). From their personal perspective regarding the distribution, trans port, and sorting of membrane lipids, they formulate a number of biologically relevant questions and show that the physicochemical methods described in this book may contribute in great measure to solving these issues. The methods of analytical ultracentrifugation have served faithfully for 60 years in the study of water-soluble proteins. The use of detergent extraction of membrane proteins, and the manipulation of density with H20/D20 mixtures, has extended this technique to the study of proteins, and in particular their interactions, from biological membranes. As described by Morris and Ralston in Chapter 2, this technique can be used to determine a number of important properties of proteins.
Download or read book Biomaterials written by David Byrom and published by Springer. This book was released on 1991-06-18 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biomaterials are produced from biological material and are used for their physical characteristics. This book looks at the range of biomaterials and their applications which range from the use of polysaccharides as thickening agents to the use of proteins as fibres and adhesives.
Download or read book TECHNEAU written by Christian Kazner and published by IWA Publishing. This book was released on 2009-06-14 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: The best papers from the three-day conference on Safe Drinking Water from Source to Tap June 2009 in Maastricht are published in this book covering the themes of challenges of the water sector and adaptive strategies, treatment, distribution, risk assessment and risk management, sensors and monitoring, small scale systems, simulation, alternative water supply & sources, consumer involvement, and future drinking water. Worldwide, the water supply sector is facing tremendous challenges. Every new emerging contaminants and pathogens and aging infrastructures that are vulnerable for deliberate contamination pose a threat to the quality of water supplies. Shortage of good quality and readily treatable resources is increasing due to global warming, urbanisation and pollution from agriculture and industry. Regulators and consumers are becoming more demanding. Techneau - the largest European project on drinking water - addresses these challenges by developing adaptive supply system options and new and improved treatment and monitoring technologies. Future system options to be studied are flexible, small scale and multi-source supplies, utilising non conventional resources like brackish ground water, treated wastewater and urban groundwater.
Author :Michel Andre Aegerter Publisher :Springer Science & Business Media ISBN 13 :0387889531 Total Pages :474 pages Book Rating :4.3/5 (878 download)
Book Synopsis Sol-Gel Technologies for Glass Producers and Users by : Michel Andre Aegerter
Download or read book Sol-Gel Technologies for Glass Producers and Users written by Michel Andre Aegerter and published by Springer Science & Business Media. This book was released on 2013-03-19 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sol-Gel Techniques for Glass Producers and Users provides technological information, descriptions and characterizations of prototypes, or products already on the market, and illustrates advantages and disadvantages of the sol-gel process in comparison to other methods. The first chapter entitled "Wet Chemical Technology" gives a summary of the basic principles of the sol-gel chemistry. The most promising applications are related to coatings. Chapter 2 describes the various "Wet Chemical Coating Technologies" from glass cleaning to many deposition and post-coating treatment techniques. These include patterning of coatings through direct or indirect techniques which have became very important and for which the sol-gel processing is particularly well adapted. Chapter 3 entitled "Bulk Glass Technologies" reports on the preparation of special glasses for different applications. Chapter 4 entitled "Coatings and Materials Properties" describes the properties of the different coatings and the sol-gel materials, fibers and powders. The chapter also includes a section dedicated to the characterization techniques especially applied to sol-gel coatings and products.
Book Synopsis Ageing and Stabilisation of Paper by : M. Strlic (ed.)
Download or read book Ageing and Stabilisation of Paper written by M. Strlic (ed.) and published by . This book was released on 2005 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis New Trends in Fluorescence Spectroscopy by : Bernard Valeur
Download or read book New Trends in Fluorescence Spectroscopy written by Bernard Valeur and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: This first volume in the new Springer Series on Fluorescence brings together fundamental and applied research from this highly interdisciplinary and field, ranging from chemistry and physics to biology and medicine. Special attention is given to supramolecular systems, sensor applications, confocal microscopy and protein-protein interactions. This carefully edited collection of articles is an invaluable tool for practitioners and novices.
Book Synopsis Materials and Processes by : Barrie D. Dunn
Download or read book Materials and Processes written by Barrie D. Dunn and published by Springer. This book was released on 2015-12-29 with total page 677 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this book is to assist scientists and engineers select the ideal material or manufacturing process for particular applications; these could cover a wide range of fields, from light-weight structures to electronic hardware. The book will help in problem solving as it also presents more than 100 case studies and failure investigations from the space sector that can, by analogy, be applied to other industries. Difficult-to-find material data is included for reference. The sciences of metallic (primarily) and organic materials presented throughout the book demonstrate how they can be applied as an integral part of spacecraft product assurance schemes, which involve quality, material and processes evaluations, and the selection of mechanical and component parts. In this successor edition, which has been revised and updated, engineering problems associated with critical spacecraft hardware and the space environment are highlighted by over 500 illustrations including micrographs and fractographs. Space hardware captured by astronauts and returned to Earth from long durations in space are examined. Information detailed in the Handbook is applicable to general terrestrial applications including consumer electronics as well as high reliability systems associated with aeronautics, medical equipment and ground transportation. This Handbook is also directed to those involved in maximizing the relia bility of new materials and processes for space technology and space engineering. It will be invaluable to engineers concerned with the construction of advanced structures or mechanical and electronic sub-systems.
Book Synopsis Fingerprint Development Techniques by : Stephen M. Bleay
Download or read book Fingerprint Development Techniques written by Stephen M. Bleay and published by John Wiley & Sons. This book was released on 2018-02-16 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive review of the latest fingerprint development and imaging techniques With contributions from leading experts in the field, Fingerprint Development Techniques offers a comprehensive review of the key techniques used in the development and imaging of fingerprints. It includes a review of the properties of fingerprints, the surfaces that fingerprints are deposited on, and the interactions that can occur between fingerprints, surfaces and environments. Comprehensive in scope, the text explores the history of each process, the theory behind the way fingerprints are either developed or imaged, and information about the role of each of the chemical constituents in recommended formulations. The authors explain the methodology employed for carrying out comparisons of effectiveness of various development techniques that clearly demonstrate how to select the most effective approaches. The text also explores how techniques can be used in sequence and with techniques for recovering other forms of forensic evidence. In addition, the book offers a guide for the selection of fingerprint development techniques and includes information on the influence of surface contamination and exposure conditions. This important resource: Provides clear methodologies for conducting comparisons of fingerprint development technique effectiveness Contains in-depth assessment of fingerprint constituents and how they are utilized by development and imaging processes Includes background information on fingerprint chemistry Offers a comprehensive history, the theory, and the applications for a broader range of processes, including the roles of each constituent in reagent formulations Fingerprint Development Techniques offers a comprehensive guide to fingerprint development and imaging, building on much of the previously unpublished research of the Home Office Centre for Applied Science and Technology.
