Download or read book Efficacit d un proc d membranaire pour le traitement des eaux us es written by Hamida Djouder and published by . This book was released on 2011 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book laboration Et valuation D un Nouveau Proc d D puration Des Eaux written by Mohamed Chiban and published by Omniscriptum. This book was released on 2011-08 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ce travail de th se est relatif au traitement des solutions simples et mixtes de laboratoire, et d'eaux us es r elles par adsorption sur des Biomat riaux Inertes Solides (BMIS). La premi re partie de ce travail concerne le d veloppement du nouveau proc d de traitement des eaux en utilisant des solutions simples de laboratoire. Une m thodologie de traitement bas e sur le principe de l'adsorption base de BMIS a t tudi e et optimis e. Les r sultats obtenus ont montr que la m thode propos e est parfaitement adapt e l' limination des polluants solubles et qu'elle permet d'obtenir des efficacit s d' puration tr s lev es (>90%). Des exp riences de filtration d'eaux charg es en esp ces ioniques sur des membranes base de BMIS ont montr que ces membranes-filtres sont capables de retenir ces esp ces au-del des concentrations g n ralement pr sentes dans les eaux. La deuxi me partie du travail a permis de montrer l'int r t de ce nouveau proc d dans l' puration des eaux us es synth tiques et r elles. La m thode propos e pr sente les avantages de s'affranchir des diverses compositions des eaux r siduaires, et de s'inscrire dans la logique de traitement des effluents industriels.
Download or read book Traitement et puration des eaux industrielles pollu es written by and published by Presses Univ. Franche-Comté. This book was released on 2007 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Etude d un proc d de traitement des eaux us es sur membranes min rales par couplage microfiltraion ou ultrafiltration tangentielles et syst mes biologiques en a robiose written by Bruno Lacoste and published by . This book was released on 1992 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'EPURATION DE LA POLLUTION ORGANIQUE DES EAUX USEES, URBAINES OU INDUSTRIELLES, FAIT ESSENTIELLEMENT APPEL ACTUELLEMENT A DES PROCEDES BIOLOGIQUES ANAEROBIES OU AEROBIES. DANS CE DERNIER CAS, LES PROCEDES A BOUES ACTIVEES SONT PARMI LES PLUS COURANTS MAIS NECESSITENT DE GRANDS VOLUMES. LES BIOREACTEURS A MEMBRANES PRESENTENT L'AVANTAGE DE LA COMPACITE ET L'OBTENTION D'UN EFFLUENT DE TRES BONNE QUALITE CONSTANTE MEME A TRES FORTE CHARGE. LES MEMBRANES MINERALES, PARTICULIEREMENT RESISTANTES ONT ETE ETUDIEES DANS NOTRE PILOTE POUR LE TRAITEMENT EN AEROBIOSE D'UNE EAU USEE URBAINE SYNTHETIQUE. NOUS PROPOSONS UN NOUVEAU SYSTEME DANS LEQUEL LE BIOREACTEUR FAISAIT CORPS AVEC LE MODULE DE FILTRATION UTILISE, SUPPRIMANT AINSI TOUT BASSIN CONVENTIONNEL. L'ETUDE DU COLMATAGE MONTRE L'IMPORTANCE DES COMPOSES ISSUS DE LA LYSE BACTERIENNE ET DE CEUX PRODUITS PENDANT LA PHASE DE RALENTISSEMENT DE CROISSANCE DE LA BIOMASSE. LE COLMATAGE TRES RAPIDE DES MEMBRANES EST EVITABLE EN UTILISANT UN DECOLMATEUR A FLUX INVERSE ET EN PRATIQUANT DES PURGES DE BOUES REGULIERES. LA BIOMASSE EST MAINTENUE A UNE VALEUR MOYENNE DE 15 G/L, LE FLUX DE FILTRAT ETANT COMPRIS ENTRE 25 ET 35 L/H.M2 SELON LA POROSITE DE LA MEMBRANE. LA QUALITE DE L'EFFLUENT OBTENU EN SORTIE EST EN TOUS POINTS COMPARABLE OU SUPERIEURE A CELLE D'UNE STATION A BOUES ACTIVEES TRAVAILLANT EN AERATION PROLONGEE. SEULE LA NITRIFICATION EST ENCORE TROP INCOMPLETE. AUCUN DES MODELES CLASSIQUES TESTES NE PERMET D'EXPLIQUER CE QUI SE PASSE APRES LA PHASE DE DECROISSANCE RAPIDE DU FLUX
Download or read book Proc d s hybrides associant la filtration membranaire et l adsorption change ionique pour le traitement des eaux us es en vue de leur r utilisation written by Sarah Khirani and published by . This book was released on 2007 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'objectif de cette étude est de développer un procédé hybride combinant la séparation membranaire et l'adsorption/ échange ionique pour traiter les effluents secondaires en vue leur réutilisation. L'application de ce type de procédé aux eaux usées nécessite une recherche des coûts les plus faibles en tenant compte de la spécifité des matières organiques contenues dans ces effluents. Par ailleurs il parait souhaitable de développer un procédé durable c'est-à-dire de minimiser la consommation énergétique et de faire en sorte que les additifs utilisés soient régénérables. Ceci nous a conduit à privilégier un procédé ou membranes immergées et adsorbant régénérable sont associés dans le même réacteur. Nous nous sommes intéressés principalement au traitement des composés organiques des effluents secondaires, soit en étudiant la fraction hydrophobe composée de substances humiques (majoritairement acides fulviques dans notre étude), soit en en travaillant avec une solution synthétique de composition proche de celle d'un effluent secondaire. Pour ce faire, cette étude à comporté les étapes suivantes : 1 Recherche d'un matériau alternatif au charbon actif en poudre CAP avec une étude comparative des cinétiques et des isothermes d’adsorption; 2. Etude de la réponse du procédé hybride à deux échelles en utilisant le CAP et la résine substitut ; 3. Amélioration d’un protocole qui permette de prédire le potentiel de colmatage des eaux vis à vis des étapes de nanofiltration ou d'osmose inverses qui pourraient compléter le procédé étudié
Download or read book Technologies membranaires innovantes pour la r utilisation des eaux written by Waritha Jantaporn and published by . This book was released on 2016 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nous nous intéressons au traitement tertiaire d'eaux issues de stations d'épuration traitant des eaux usées domestiques, en vue de leur réutilisation en particulier pour l'irrigation. Les opérations de séparation membranaires sont aujourd'hui les plus souvent considérées pour ce type de traitement, avec par exemple l'osmose inverse couplée à de l'ultrafiltration en pré traitement. Ces solutions présentent les inconvénients propres à ces technologies, inconvénients qui restent à lever au plan scientifique mais aussi au plan technologique. Notre objectif initial était de reconstruire totalement le schéma de procédé de réutilisation des eaux, à partir de son analyse globale. Nous avons pu réaliser seulement trois des étapes de ce travail : L'analyse de l'efficacité de techniques de modification de surface de membranes d'ultrafiltration en vue de rendre le colmatage réversible. L'analyse de la faisabilité d'utiliser la distillation membranaire pour traiter des eaux usées en sortie de station d'épuration traditionnelles ou par bio réacteurs à membranes, dont nous avons fait une évaluation expérimentale à partir d'eaux de complexité croissante, allant jusqu'au traitement d'eaux prélevées directement en sortie de station. Les résultats prometteurs de ces essais ont été complété par une recherche de points de fonctionnement de la distillation membranaire, par une analyse classique de bilans matière et d'énergie, dont l'originalité est la prise en compte du facteur de conversion comme paramètre opératoire.
Download or read book Wastewater Reclamation and Reuse written by Takashi Asano and published by CRC Press. This book was released on 1998-06-15 with total page 1570 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effective integration of water and reclaimed wastewater still requires close examination of public health issues, infrastructure and facilities planning, wastewater treatment plant siting, treatment process reliability, economic and financial analyses, and water utility management. This book assembles, analyzes, and reviews the various aspects of wastewater reclamation, recycling, and reuse in most parts of the world. It considers the effective integration of water and reclaimed wastewater, public health issues, infrastructure and facilities planning, waste-water treatment plant siting, treatment process reliability, economic and financial analysis, and water utility management.
Download or read book Tree Root Systems and Their Mycorrhizas written by D. Atkinson and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 503 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of a Meeting of the IUFRO, Working Party on Root Physiology and Symbiosis
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 Utilization of Fish Waste written by Raul Perez Galvez and published by CRC Press. This book was released on 2013-05-21 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: The shortage of marine resources calls for the implementation of new technological processes for providing a better utilization of waste and by-products from fisheries and fish processing activities. Most of these by-products are currently used as raw materials for animal feed. It is estimated that their utilization in human foodstuffs, nutraceutic
Download or read book Vibrio Cholerae and Cholera written by Kaye Wachsmuth and published by . This book was released on 1994 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents the latest molecular studies of virulence, colonization, gene regulation, and the O1 antigen. Gives an in-depth and analytical approach to the epidemiology of cholera that includes outbreak investigations, case-control studies, and surveillance functions. Describes the molecular approach to epidemiologic problems and questions. Tracks the global spread of cholera by genetically defining individual strains. Addresses possible intervention and prevention strategies, including the latest vaccines, and their public health relevance.
Download or read book Cyclodextrins and Their Complexes written by Helena Dodziuk and published by John Wiley & Sons. This book was released on 2006-08-21 with total page 507 pages. Available in PDF, EPUB and Kindle. Book excerpt: Offering comprehensive and up-to-date know-how in one compact book, an experienced editor and top authors cover every aspect of these important molecules from molecular recognition to cyclodextrins as enzyme models. Chapters include reactivity and chemistry, chromatography, X-ray, NMR plus other physicochemical methods, as well as model calculations, rotaxane and catenane structures, and applications in the pharmaceutical industry. The book also discusses other applications such as in the cosmetics, toiletries, textile and wrapping industries, agrochemistry, electrochemical sensors, and devices. A must for everyone working with these substances.
Download or read book The Textbook of Peritoneal Dialysis written by R. Gokal and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 1185 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1986 the first edition of Continuous Ambulatory Peritoneal Dialysis, edited by R. Gokal, was published. In 1989 the third edition of Peritoneal Dialysis, edited by K.D. Nolph, was published. Both books were widely recognized for their comprehensive discussion of this particular field. Rather than edit new editions of each of these books separately, two of the most prominent figures in this field have decided to combine their knowledge and enthusiasm in this single book: The Textbook of Peritoneal Dialysis. The book is unique in its detailed discussion of a complete range of topics, including new advances in our understanding of the physiology of peritoneal dialysis, peritoneal dialysis kinetics, clinical results and a chapter dealing with the concepts of intraperitoneal chemotherapy. These examples of the dynamic nature of the field further illustrate the importance of this textbook, and make it required reading for everybody working within the field of peritoneal dialysis.
Download or read book The Rate of Living written by Raymond Pearl and published by . This book was released on 1928 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Micelles Membranes Microemulsions and Monolayers written by William M. Gelbart and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the last decades, the study of surfactants (detergents, for example) has been profoundly changed by ideas and techniques from physics, chemistry, and materials science. Among these are: self assembly; critical phenomena, scaling, and renormalization; high-resolution scattering, and magnetic resonance spectroscopy. This book represents the first systematic account of these new developments, providing both a general introduction to the subject as well as a review of recent developments. The book will be a very useful tool for the biophysist, biochemist or physical chemist working in the field of surfactants.
Download or read book Statistics for Environmental Engineers Second Edition written by Linfield C. Brown and published by CRC Press. This book was released on 2002-01-29 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two critical questions arise when one is confronted with a new problem that involves the collection and analysis of data. How will the use of statistics help solve this problem? Which techniques should be used? Statistics for Environmental Engineers, Second Edition helps environmental science and engineering students answer these questions when the goal is to understand and design systems for environmental protection. The second edition of this bestseller is a solutions-oriented text that encourages students to view statistics as a problem-solving tool. Written in an easy-to-understand style, Statistics for Environmental Engineers, Second Edition consists of 54 short, "stand-alone" chapters. All chapters address a particular environmental problem or statistical technique and are written in a manner that permits each chapter to be studied independently and in any order. Chapters are organized around specific case studies, beginning with brief discussions of the appropriate methodologies, followed by analysis of the case study examples, and ending with comments on the strengths and weaknesses of the approaches. New to this edition: Thirteen new chapters dealing with topics such as experimental design, sizing experiments, tolerance and prediction intervals, time-series modeling and forecasting, transfer function models, weighted least squares, laboratory quality assurance, and specialized control charts Exercises for classroom use or self-study in each chapter Improved graphics Revisions to all chapters Whether the topic is displaying data, t-tests, mechanistic model building, nonlinear least squares, confidence intervals, regression, or experimental design, the context is always familiar to environmental scientists and engineers. Case studies are drawn from censored data, detection limits, regulatory standards, treatment plant performance, sampling and measurement errors, hazardous waste, and much more. This revision of a classic text serves as an ideal textbook for students and a valuable reference for any environmental professional working with numbers.
Download or read book Clinical and Pathological Aspects of Skin Diseases in Endocrine Metabolic Nutritional and Deposition Disease written by Bruce R. Smoller and published by Springer Science & Business Media. This book was released on 2010-09-28 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is a pleasure to introduce this new book, Clinical and Pathological Aspects of Skin Diseases in Endocrine, Metabolic, Nutritional, and Deposition Disease, edited by two of my friends and respected colleagues, Franco Rongioletti and Bruce R. Smoller. In fact, I was very ent- siastic when I learned that they were preparing this work. Although endocrine, metabolic, w, and deposition diseases are regularly included in general textbooks of dermatology and d- matopathology, one gains the general impression that these topics receive little emphasis and are mainly included for completeness. The prospect of having all of this information in one volume, lovingly described and detailed by experts in the feld, should be of great interest not only to dermatologists, pathologists, and dermatopathologists but also to internists and en- crinologists, who may well gain a different perspective on these disorders. As a derma- pathologist, I am also pleased that this project has been organized and undertaken by two distinguished authorities in cutaneous pathology. This assures a close integration of histo- thology and other laboratory techniques with the clinical aspects of these disorders, which will make it possible – perhaps for the frst time – to view these conditions in a truly comprehensive way. So I invite you, the reader, to open this volume and dig in; be prepared for an eye-catching, intellectually stimulating, and ultimately rewarding experience! Charlottesville, VA James W. Patterson v w Foreword II Dermatopathology is a bridge between Dermatology and Pathology.
