Download or read book Diagnostic et mise en place d un syst me de traitement des lixiviats written by Florian Masquelin and published by . This book was released on 2017 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: La compétence de gestion et le suivi du centre d'enfouissement technique (CET) du Hays est revenue à la Communauté de Commune de la Haute-Comté (CCHC) après la fermeture du CET en 2002. Les coûts et les risques engendrés par la gestion des lixiviats à la station d'épuration de Saint-Loup sur Semouse ont poussé la CCHC à s'orienter vers la mise en place d'un traitement in situ. Ce travail vise à proposer différents systèmes de traitement et déterminer celui qui sera le plus adapté techniquement et économiquement à long terme. Pour cela, il a été nécessaire d'étudier le contexte environnemental particulier du site mais également la nature et les quantités de lixiviat produites. Le lagunage semble être le meilleur compromis entre performance épuratoire et économique. Des essais pilotes ont été menés afin de déterminer les meilleures conditions pour accélérer la mise en place d'un système de lagunage naturel. Ce travail a également pour objectif d'étudier l'impact du CET sur une source d'eau captée dont l'historique et le mode d'alimentation sont inconnus. Des éléments de réponse ont été formulés et devront être confirmés par la réalisation d'un essai de tomographie de la résistivité électrique. Dans le souci de protéger l'environnement et de faire l'état des impacts potentiels provoqués par le CET du Hays, cette étude vise à comprendre les transferts de flux entre les polluants vers le milieu naturel, quantitativement et qualitativement, afin de s'assurer que l'usage du milieu soit adapté à sa qualité. Un état initial de la nappe phréatique, des cours d'eau et des sols du bassin versant a été effectué. Des moyens de gestion tels que la phytoremédiation des sols et le pompage de la source ont été proposés en fonction de la nature et de l'impact de la pollution sur la faune, les eaux et les sols du bassin versant du CET.
Download or read book Caract risation chimique min rale et organique des lixiviats issus de la d charge des d chets Tripoli Liban written by Ahmad Moustafa and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: La production mondiale de déchets augmente d'une façon rapide, elle engendre une source de menace pour les organismes vivants, la santé humaine et l'environnement. Dans les pays du tiers monde comme le Liban, la majorité des déchets produits sont éliminées dans des décharges mal contrôlées. Les déchets sont soumis à des processus de dégradation aboutissant à la libération de nombreuses substances toxiques principalement les lixiviats, chargés en polluants, ils constituent une source importante de la pollution de l'environnement. Au Liban les déchets sont éliminés dans des décharges non contrôlées sans aucun tri préalable. La décharge de Tripoli est l'une des plus grandes au Liban, ses lixiviats sont rejetés dans l'environnement aquatique sans aucun traitement. Notre travail de recherche a pour objectif d'étudier les caractéristiques physico-chimiques ; la variation temporelle et saisonnière de la qualité des lixiviats issue de la décharge, et l'estimer le risque sur la zone d'étude. Afin de répondre à ces objectives plusieurs campagnes d'échantillonnages ont été effectuées couvrant les périodes estivales et hivernales, ainsi que les cellules anciennes et nouvelles du corps de la décharge. La variation des 100 paramètres de qualité des lixiviats à savoir des composants organiques dissous; des macros polluants inorganiques; des éléments traces métalliques et des composés organiques xénobiotiques ont été suivis. Les analyses de la qualité des lixiviats ont montré une grande variation entre les deux unités de la décharge. La teneur de la majorité des polluants (organiques et minéraux) détectés dans la nouvelle unité de décharge est beaucoup plus importante à celle trouvée dans l'ancienne unité. Cela indique l'état hétérogène du corps de la décharge et l'influence de l'âge sur la qualité des lixiviats. La quantité et la qualité du lixiviat sont fortement corrélées aux conditions climatiques et cela dépend du polluant étudié, ce qui reflète la complexité d'effet saisonnier sur la qualité du lixiviat de la décharge de Tripoli. Des valeurs élevées des LPI (indice de pollution par le lixiviat) et du flux annuel des polluants (organiques et minéraux) ont été trouvées, ce qui montre la toxicité élevée des lixiviats ainsi que la pollution occasionnelle des différents compartiments de l'environnement aquatique voisin (Fleuve Abou Ali et Mer Méditerranée).Les résultats obtenus dans cette étude donnent une image claire sur la qualité de lixiviat de la décharge, ils serviront à la mise en place des actions correctives et préventives de la situation dangereuse de la décharge et à attirer l'attention des responsables locaux et nationaux pour limiter le danger et de se diriger vers une bonne gestion des lixiviats rejetés par la mise en place d'un système de traitement spécifique des lixiviats.
Download or read book Caract risation et traitement du lixiviat d un lieu d enfouissement sanitaire written by J.C. Frigon and published by . This book was released on 1992 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil Contamination written by Marcelo L. Larramendy and published by BoD – Books on Demand. This book was released on 2021-06-23 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited book, Soil Contamination - Threats and Sustainable Solutions, is intended to provide an update on different aspects of soil contamination exerted by a multiplicity of exogenous and endogenous causes. We hope that this book will continue to increase information from diverse sources and to give some real-life examples, extending the appreciation of the complexity of this subject in a way that may stimulate new approaches in relevant fields.
Download or read book Biotransformation of Waste Biomass into High Value Biochemicals written by Satinder Kaur Brar and published by Springer Science & Business Media. This book was released on 2013-09-24 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: Agro-industrial wastes are end-products emerging after industrial processing operations and also from their treatment and disposal e.g. solid fruit wastes and sludge. The agro-industrial wastes are often present in multiphase and comprise multicomponent. Nevertheless, these wastes are a goldmine as they possess valuable organic matter which can be diverted towards high value products ranging from polymers to antibiotics to platform chemicals. There have been plenty of books published on bioenergy, enzymes and organic acids, among others. However, this emerging field of biochemical has not yet been covered so far which is an important entity of the biorefinery model from waste biomass and needs to be understood from fundamental, applied as well as commercial perspective which has been laid out in this book.
Download or read book Emulsion Science written by Jerôme Bibette and published by Springer. This book was released on 2003-07-01 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: Emulsions occur either as end products or during the processing of products in a huge range of areas including the food, agrochemical, pharmaceuticals, paints and oil industries. As end products, emulsions allow to avoid organic solvent in processing hydrophobic coatings. Emulsion technology is a suitable approach to vehicle viscous phases. It is also a remarkable mean of targeting actives or capturing specific species. The range of applications of emulsions progresses and their manufacturing becomes more and more sophisticated. Besides this broad domain of technological interest, emulsions are raising a variety of fundamental questions at the frontier between physic and chem istry. Indeed, as a class of soft colloidal materials, emulsions science is linked to various aspects of these disciplines: phase transitions, surface forces and wetting, metastability and hydrodynamic instabilities, mechanical properties and flow. The aim of this book is to review the main important concepts governing emulsion science. In Chapter 2, repulsive interactions between liquid films are discussed as well as adhesive interaction related to wetting. In Chap ter 3, consequences of weak and strong attractions are presented, related to the well accepted liquid solid transition analogy. In Chapter 4, the basics of both bulk compressibility and shear elasticity are presented, the role of disorder being the most important aspect of the elastic behavior of these soft systems. In Chapter 5 the central question of the emulsion lifetime related to metastability is discussed.
Download or read book Leachate from Municipal Landfills written by James C. S. Lu and published by . This book was released on 1985 with total page 453 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Bibliographical List of Plays in the French Language 1700 1789 written by Clarence Dietz Brenner and published by . This book was released on 1979 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biocontrol written by Satinder Kaur Brar and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Agricultural and forest pests lead to many plant diseases resulting in poor yield and productivity. Traditionally, chemical pesticides have been used to control these pests. However, the adverse health impacts of chemical pesticides have triggered parallel research in safe biological options. Nevertheless, biocontrol has come a long way ever since the commercialisation of the first Bacillus thuringiensis based biopesticide (sporeine) in the 1940s, however, still there are research gaps. New knowledge and practical experiences have been added over the last few decades. This book reviews research on biological control agents, including bacterial, fungal and viral biopesticides along with their advanced formulation options.
Download or read book Liming Acid Soils written by J. W. Schwartz and published by . This book was released on 1979 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Profile written by and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Guide To Soil Mechanics written by Malcolm D Bolton and published by Universities Press. This book was released on 2013 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covers all the soil mechanics and foundation engineering topics that are commonly included in civil engineering degree courses, and provides a number of springboards into related advanced topics. Although it is intended principally to satisfy the needs of student civil engineers, this guide should also prove useful to those practicing engineers who are unaware of the powerful and elegant reconstruction of the subject which has been made possible by the recent concepts of plasticity, dilatancy and critical states.
Download or read book Citric Acid written by Dominic A. Vargas and published by Nova Science Publishers. This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book, the authors present topical research in the study of the synthesis, properties and applications of citric acid. Some of the topics discussed include fungal and yeast production of citric acid; mitochondrial production and applications in food and pharmaceutical industries; synthesis of the CuO/CeO2 catalytic system by polymerisation with citric acid; citric acid as a useful tool in artificial enamel formation and regeneration; the impact of citrate on glycolysis in brain tumours and applications of citrus fruits and their extracts for detection of food poisoning caused by bacteria.
Download or read book Polymer Initiators written by Whitney J. Ackrine and published by . This book was released on 2010-10 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Anionic polymerisation techniques offer powerful methods for the controlled manipulation of macromolecular architecture, and are still today unique for the synthesis of a wide variety of model polymeric materials. This book presents current research data from across the globe in the study of polymer initiators including: advanced organocobalt initiators in radical polymerisation; surface-initiated polymerisation techniques; citric acid and biopolymers; oliogomeric azo-initiators for grafting of polymers on clay surfaces and photopolymerisation.
Download or read book Soil Analysis written by J. Gautheyrou and published by CRC Press. This book was released on 2001-01-01 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this book is to provide a better understanding of tools for soil analysis in order to use them more efficiently. It covers sampling problems as well as difficulties relating to actual analysis and quality control.
Download or read book Enhanced Abutment Scour Studies for Compound Channels written by Terry W. Sturm and published by DIANE Publishing. This book was released on 2004 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experimental results and analyses are given in this report on bridge abutment scour in compound channels. Experiments were conducted in a laboratory flume with a cross section consisting of a wide floodplain adjacent to a main channel. The embankment length, discharge, sediment size, and abutment shape were varied, and the resulting equilibrium scour depths were measured. Water-surface profiles, velocities, and scour-hole contours were also measured. In the report, a methodology is developed for estimating abutment scour that takes into account the redistribution of discharge in the bridge contraction, abutment shape, sediment size, and tailwater depth. The independant variables in the proposed scour formula are evaluated at the approach-channel cross section and can be obtained froma one-dimensional water-surface profile computer program such as the Water-Surface Profile Program (WSPRO). The proposed scour evaluation procedure is outlined and illustrated, including consideration of the time required to reach equilibrium scour. The proposed methodology is applied to two cases of measured scour in the field.
Download or read book Integrated Soil Fertility Management in Africa written by Nteranya Sanginga and published by CIAT. This book was released on 2009 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forward. A call for integrated soil fertility management in Africa. Introduction. ISFM and the African farmer. Part I. The principles of ISFM: ISFM as a strategic goal, Fertilizer management within ISFM, Agro-minerals in ISFM, Organic resource management, ISFM, soil biota and soil health. Part II. ISFM practices: ISFM products and fields practices, ISFM practice in drylands, ISFM practice in savannas and woodlands, ISFM practice in the humid forest zone, Conservation Agriculture. Part III. The process of implementing ISFM: soil fertility diagnosis, soil fertility management advice, Dissemination of ISFM technologies, Designing an ISFM adoption project, ISFM at farm and landscape scales. Part IV. The social dimensions of ISFM: The role of ISFM in gender empowerment, ISFM and household nutrition, Capacity building in ISFM, ISFM in the policy arena, Marketing support for ISFM, Advancing ISFM in Africa. Appendices: Mineral nutrient contents of some common organic resources.
