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Oxydation Par Voie Humide Catalytique Deffluents Industriels
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Book Synopsis Oxydation par voie humide catalytique d'effluents industriels by : Nicolas Grosjean
Download or read book Oxydation par voie humide catalytique d'effluents industriels written by Nicolas Grosjean and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'industrie produit de grandes quantités d'effluents aqueux qu'il convient de traiter. Des traitements alternatifs aux procédés biologiques doivent être développés pour certains effluents toxiques et/ou non biodégradables. L'oxydation en voie humide catalytique repose sur l'action de l'oxygène sur les polluants en phase aqueuse à haute température et haute pression. Préalablement à cette étude, des catalyseurs au Ru ou Pt supportés sur ZrO2 ou TiO2très actifs et très stables pour l'OVHC de polluants modèles et de quelques effluents réels ont été développés. Ce travail a examiné ces catalyseurs sur d'autres effluents réels : un effluent provenant d'une unité de production de membranes contenant du glycérol et du DMF, uneffluent de sauce de couchage provenant de l'industrie papetière et un concentrât de lixiviatde décharge. Les catalyseurs se sont révélés très actifs et stables pour la minéralisation du glycérol, mais une forte lixiviation a été observée lors de l'OVHC du DMF du fait de la présence d'amines. L'oxydation de l'effluent de sauce de couchage permet de minéraliser la charge organique, facilitant le recyclage de la charge minérale, avec une amélioration accrue de la biodégradabilité du surnageant en présence des catalyseurs. Enfin, l'ajout de catalyseurs lors de l'OVH du concentrât de lixiviat de décharge permet d'améliorer sa minéralisation et d'éliminer totalement les ions ammonium.
Author :Ravinder Kumar Jain Publisher :Springer Science & Business Media ISBN 13 :9783540613428 Total Pages :420 pages Book Rating :4.6/5 (134 download)
Book Synopsis Environmental Technologies and Trends by : Ravinder Kumar Jain
Download or read book Environmental Technologies and Trends written by Ravinder Kumar Jain and published by Springer Science & Business Media. This book was released on 1997 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: 1 Introduction.- 2 Drinking Water.- 2.1 Drinking Water Production: Processes and Emerging Technologies.- 2.2 Adsorption of Organic Micropollutants onto Activated Carbon Fibers: Cloth and Felt.- 2.3 Removal of Micropollutants in Some Ozone Contactors: Efficiency and Simulation.- 2.4 Pervaporation and Membrane Stripping: Potentialities on Micropollutants Removal from Water.- 3 Air Pollution.- 3.1 Industrial Air Pollution: Removal of Dilute Gaseous Vapors.- 3.2 Development of Trickle-Bed Air Biofilter.- 3.3 Deodorization in Wastewater Treatment Plants by Wet-Scrubbing on Packed Column and Chlorine Oxidation.- 3.4 Regeneration by Induction Heating of Granular Activated Carbon Loaded with Volatile Organic Compounds.- 4 Wastewater Treatment.- A Biological Treatment.- 4.1 Effect of the Grease Solubilization and the Optimal Process Monitoring on the Grease Aerobic Digestion.- 4.2 Membrane Gas Liquid Contactors in Water and Wastewater Treatment.- 4.3 The Biological Treatment of High Effluent Flowrates: A Review of the Hydrodynamic Conditions and Possibilities.- 4.4 Multiphase Reactors for Biological Treatment of Urban Wastewaters.- B Physical-Chemical Treatment.- 4.5 Physical Chemical Treatments for Wastewater.- 4.6 Hydrocyclone Based Treatment Methods for Oily Wastewaters.- 4.7 Application of Membrane Separation Processes to Oily Wastewater Treatment: Cutting Oil Emulsions.- 4.8 Electrochemical Degradation of Organic Pollutants for Wastewater Treatment: Oxidation of Phenol on PbO2 Anodes.- 4.9 Treatment of Aqueous Organic Wastes by Molecular Oxygen at High Temperature and Pressure: Wet Air Oxidation Process.- 5 Hazardous Waste Management.- 5.1 Hazardous Wastes Treatments.- 5.2 Advanced Method for the Treatment of Organic Aqueous Wastes: Wet Peroxide Oxidation - WPO(R), Laboratory Studies and Industrial Development.- 5.3 Heavy Metals Recovery by Electrolyzing Technique: The 3.P.E. Technology.- 5.4 An Overview of Plasma Arc Technology Applied Research Projects for the Vitrification of Hazardous Wastes.- 5.5 Permeable Barriers to Remove Cd and Cr from Groundwater.- 6 Soil and Groundwater Contamination.- 6.1 How Technology is Improving Decision Marking for Environmental Restoration.- 6.2 Soil Decontamination Using Electrokinetics, with Application to Urban Residual Sludges.- 6.3 A Systematic Approach to Groundwater Management.- 7 Environmental Trends and Policy Perspectives.- 7.1 Technology Transfer and Utilization.- 7.2 Environmental Technologies and Regulations.- 7.3 Holistic Approach to Environmental Problems.- 7.4 Environmental Forecasting and Technology Trends.- 7.5 Privatization of the Environmental Infrastructure.- 7.6 Increased Use of Economic Instruments in Environmental Policy.- 7.7 Industry Trends.- 7.8 Industrial Ecology - Going Beyond Pollution Prevention.- 7.9 Summary.
Book Synopsis Oxidation Technologies for Water and Wastewater Treatment by : Alfons Vogelpohl
Download or read book Oxidation Technologies for Water and Wastewater Treatment written by Alfons Vogelpohl and published by . This book was released on 2000 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dégradation et valorisation d’effluents aqueux par oxydation en voie humide by : Sébastien Lefèvre
Download or read book Dégradation et valorisation d’effluents aqueux par oxydation en voie humide written by Sébastien Lefèvre and published by . This book was released on 2010 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les méthodes d’épuration utilisées pour traiter les effluents urbains ou industriels font intervenir des procédés biologiques ou des traitements physico-chimiques. Le procédé d’oxydation en voie humide (OVH) consiste à réaliser une oxydation poussée de la fraction organique d’un effluent contenant une forte concentration de matière organique peu ou non biodégradable, en la mettant en contact avec un oxydant sous une pression de 0,5 à 20 MPa et une température de 100 à 320°C. Une étude thermodynamique et cinétique de la dégradation du phénol a été menée afin de développer un procédé OVH non catalysé dans des conditions de température et de pression élevées. Des mesures d’équilibre de phases ont ainsi été effectuées sur des systèmes binaires et ternaires pour choisir un modèle thermodynamique de représentation des équilibres liquide-gaz au sein du réacteur et une étude cinétique a été menée pour déterminer les paramètres cinétiques de la réaction d’oxydation du phénol. La concentration initiale en phénol et l’excès d’oxygène ont été choisis de façon à être représentatifs d’un effluent réel et permettre une éventuelle extrapolation à l’échelle industrielle. Pour étudier le procédé OVH d’un point de vue énergétique, une méthode d’optimisation basée sur le couplage de la simulation de procédé et des plans numériques a également été développée. Cette méthode permet d’évaluer différentes configurations du procédé en les comparant au travers de paramètres énergétiques et du rendement matière.
Book Synopsis Oxydation par voie humide catalytique des eaux usées de la production d'huile d'olives by : Doan Pham Minh
Download or read book Oxydation par voie humide catalytique des eaux usées de la production d'huile d'olives written by Doan Pham Minh and published by . This book was released on 2006 with total page 223 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'industrie oléicole produit chaque année une énorme quantité d'eaux usées (margines en langage de spécialistes), de l'ordre de 30 millions de m3, qui sont très chargées en composés organiques (carbone organique total - COT jusqu'à 70 g.L-1), et qui sont phytotoxiques et non biodégradables. L'oxydation par voie humide (OVH) et l'OVH catalytique (OVHC) qui sont basées sur la réaction d'un agent oxydant (oxygène) avec les polluants en phase aqueuse à haute température et haute pression, ont été étudiées pour le traitement des composés modèles présents dans des margines et des margines. Des catalyseurs au Ru ou Pt supportés sur TiO2 et ZrO2 ont été utilisés. L'addition de catalyseurs conduit à une minéralisation beaucoup plus importante des composés modèles ou des effluents réels. Des paramètres influençant la réaction ont été étudiés comme la nature du précurseur du métal actif, la méthode de préparation des catalyseurs, la teneur en métal actif déposé sur le support... L'étude de l'oxydation d'une margine d'origine tunisienne en réacteur continu a montré qu'un catalyseur au Ru supporté garde son activité catalytique inchangée pendant tout au long de la réaction (655 h), après une désactivation initiale due à une oxydation superficielle du ruthénium
Book Synopsis Advances in Solid State Fermentation by : S. Roussos
Download or read book Advances in Solid State Fermentation written by S. Roussos and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 641 pages. Available in PDF, EPUB and Kindle. Book excerpt: G.HAINNAUX Departement Milieu et Activites Agricoles, Centre ORSTOM, 911 Avenue d' Agropolis, B.P. 5045, 34032 Montpellier Cedex , France. Solid state fermentation, popularly abbreviated as SSF, is currently investigated by many groups throughout the world. The study of this technique was largely neglected in the past in European and Western countries and there is now a high demand for SSF, meaning in food, environment, agricultural, phannaceutical and many other biotechnological applications. It gives me satisfaction to note that the importance of this technique was realised at my department way back in 1975 since then, our team has put concentrated efforts on developing this technique. xvii Foreword Advances in Solid State Fermentation Foreword M. PUYGRENIER Agropolis Valorisation, Avenue d' Agropolis, 34394 Montpellier Cedex 5, France. On the name of the Scientific Community, I would like to express the wish that this International Symposium on SSF should be successful. Solid State Fermentation is part of biotechnology research. It consists on seeding solid culture medium with bacteria or fungi (filamentous or higher) and on producing, in this medium (solid components and exudates) metabolites and high value products. In fact, this process is very old. In older industries such the food and agricultural, this technique has been extensively used. An example of this is the production of pork sausages and Roquefort cheese. Pharmaceutical industry could make extensive use of SSF in the production of secondary metabolites of many kinds and development in this direction is soon expected.
Book Synopsis Integration of Geographic Information Systems and Remote Sensing by : Jeffrey L. Star
Download or read book Integration of Geographic Information Systems and Remote Sensing written by Jeffrey L. Star and published by Cambridge University Press. This book was released on 1997-01-28 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: Applications of remote sensing and geographic information systems to resource management and environmental research.
Book Synopsis People and Environment in Africa by : Tony Binns
Download or read book People and Environment in Africa written by Tony Binns and published by . This book was released on 1995-04-12 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: A series of case studies revealing how the indigenous people of Africa are coping with the local environment by using a number of methods such as soil conservation, diversification, pastoral systems, irrigation projects and innovative crop-growing strategies.
Book Synopsis Applied Mineralogy in the Mining Industry by : W. Petruk
Download or read book Applied Mineralogy in the Mining Industry written by W. Petruk and published by Elsevier. This book was released on 2000-11-29 with total page 287 pages. Available in PDF, EPUB and Kindle. Book excerpt: Techniques of performing applied mineralogy investigations, and applications and capabilities of recently developed instruments for measuring mineral properties are explored in this book intended for practicing applied mineralogists, students in mineralogy and metallurgy, and mineral processing engineers. The benefits of applied mineralogy are presented by using in-depth applied mineralogy studies on base metal ores, gold ores, porphyry copper ores, iron ores and industrial minerals as examples. The chapter on base metal ores includes a discussion on the effects of liberation, particle sizes and surfaces coatings of Pb, Cu, Fe, Ca and So4- on the recoveries of sphalerite, galena and chalcopyrite. The chapter on gold discusses various methods of determining the quantities of gold in different minerals, including 'invisible' gold in pyrite and arsenopyrite, so that a balance of the distribution of gold among the minerals can be calculated. This book also discusses the roles of pyrite, oxygen, moisture and bacterial (thiobacillus ferrooxidans) on reactions that produce acidic drainage from tailings piles, and summarizes currently used and proposed methods of remediation of acidic drainage.
Book Synopsis Tropical Agriculturist and Magazine of the Ceylon Agricultural Society by :
Download or read book Tropical Agriculturist and Magazine of the Ceylon Agricultural Society written by and published by . This book was released on 1988 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific Canadian Mechanics' Magazine and Patent Office Record by : Canada. Patent Office
Download or read book Scientific Canadian Mechanics' Magazine and Patent Office Record written by Canada. Patent Office and published by . This book was released on 1966-03 with total page 1070 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Solid-State Fermentation Bioreactors by : David A. Mitchell
Download or read book Solid-State Fermentation Bioreactors written by David A. Mitchell and published by Springer Science & Business Media. This book was released on 2006-08-02 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: This concise professional reference provides a fundamental framework for the design and operation of solid-state fermentation bioreactors, enabling researchers currently working at laboratory scale to scale up their processes. The authors survey bioreactor types in common use, and describe in depth how to plan a project, and model heat transfer phenomena. The book includes case studies, and a review of practical issues involved in bioreactor performance.
Book Synopsis Advances in Bioprocess Engineering by : Enrique Galindo
Download or read book Advances in Bioprocess Engineering written by Enrique Galindo and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bioprocess engineering has played a key role in biotechnology, contributing towards bringing the exciting new discoveries of molecular and cellular biology into the applied sphere, and in maintaining established processes, some centuries-old, efficient and essential for today's industry. Novel developments and new application areas of biotechnology, along with increasing constraints in costs, product quality, regulatory and environmental considerations, have placed the biochemical engineer at the forefront of new challenges. This second volume of Advances in Bioprocess Engineering reflects precisely the multidisciplinary nature of the field, where new and traditional areas of application are nurtured by a better understanding of fundamental phenomena and by the utilization of novel techniques and methodologies. The chapters in this book were written by the invited speakers to the 2nd International Symposium on Bioprocess Engineering, Mazatlan, Mexico, September 1997.
Book Synopsis Enzymes in Industry by : Wolfgang Gerhartz
Download or read book Enzymes in Industry written by Wolfgang Gerhartz and published by . This book was released on 1990 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: Enzyme nomenclature. Structure of enzymes. Enzymes and molecular biology. Catalytic activity of enzymes. Quality evaluation of enzyme preparations. General production methods: fermentation, isolation and purification, immobilization. Industrial uses of enzymes: survey of industrial enzymes, enzymes in starch processing and baking, glucose isomerization, meat processing, dairy products, processing of fruit, vegetables, and wine, hidrolysis of protein, fat, and cellusose, and inversion of sucrose. Enzymes in organic synthesis. Enzymes in analysius and medicine. Enzymes in genetic engineering. Modifying enzymes.
