Download or read book Guide sur le comportement des polluants dans les sols et les nappes written by Bruno Lemière and published by . This book was released on 2001 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Geomechanics written by Bernhard A. Schrefler and published by John Wiley & Sons. This book was released on 2013-03-28 with total page 393 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers a range of topics that are of increasing importance in engineering practice: natural hazards, pollution, and environmental protection through good practice. The first half of the book deals with natural risk factors, of both natural and human origin, that should be considered: subsidence, accidental infiltration, soil instability, rockslides and mudslides, debris flow, and degradation of buildings and monuments due to pollution and climactic effects, for example. These problems are highlighted and it is shown that a combination of sophisticated numerical techniques and extensive experimental investigations are necessary in order to effectively tackle these problems. The second half of the book is devoted to the use of polluted sites and associated problems, a topic of growing significance given the increasing reclamation of land from abandoned industrial sites for urban development over the last 20 years. Different types of oil pollution and decontamination methods are described, followed by a discussion of waste management and detailed coverage of confinement liners used in surface waste disposal.
Download or read book Wastewater Treatment written by Amy J. Forsgren and published by CRC Press. This book was released on 2018-10-08 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the sources of water contamination by PAHs and their transportation and fate in natural aquatic systems. It then discusses, from the analytical chemist’s view, how to determine the presence of PAHs in water and wastewater, and the changes in PAH concentration during treatment processes. The text examines the removal of PAHs using membrane bioreactors and advanced sludge processes, highlighting results from both demonstration and full-scale plants. It also examines the presence of PAHs in conventional wastewater treatment plants, especially in sludge.
Download or read book Environmental Soil Remediation and Rehabilitation written by Eric D. van Hullebusch and published by Springer Nature. This book was released on 2020-04-22 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive overview of innovative remediation techniques and strategies for soils contaminated by heavy metals or organic compounds (e.g. petroleum hydrocarbons, NAPLs and chlorinated organic compounds). It discusses various novel chemical remediation approaches (in-situ and ex-situ) used alone and in combination with physical and/or thermal treatment. Further, it addresses the recovery of NAPLs, reuse of leaching solutions, and in-situ chemical reduction and oxidation, and explores the chemical enhancement of physical NAPLs recovery from both practical and theoretical perspectives. Also presenting the state-of-the-art in waste-assisted bioremediation to improve soil quality and the remediation of petroleum hydrocarbons, the book is a valuable resource for students, researchers and R&D professionals in industry engaged in the treatment of contaminated soils.
Download or read book Guide m thodologique pour l analyse des sols pollu s written by R. Jeannot and published by Editions BRGM. This book was released on 2001 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fait le point sur les différentes substances potentiellement polluantes. Un schéma de démarche générale est proposé pour les analyses de polluants dans le sol. Sont abordés le prélèvement et les méthodes de préparation des échantillons, les méthodes d'analyse des composés organiques et inorganiques, les tests écotoxicologiques, ainsi que l'assurance qualité et l'accréditation des laboratoires.
Download or read book COMPORTEMENT A MOYEN ET LONG TERME DANS LE SOUS SOL DE POLLUANTS ISSUS DU PROCESSUS DE PYROLYSE DE LA HOUILLE written by Frédéric Bonnet and published by . This book was released on 1998 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: AUJOURD'HUI, LES INDUSTRIELS DOIVENT TENIR COMPTE DE L'ETAT DE LA POLLUTION POTENTIELLEMENT PRESENTE SUR LEURS SITES D'EXPLOITATION. POUR ACCEDER A UNE MEILLEURE COMPREHENSION DES MECANISMES D'INTERACTION SOLS-POLLUANTS, NOUS LES AVONS OBSERVES SOUS 3 ASPECTS : LA DEPOLLUTION D'UN SOL, LA MIGRATION DE POLLUANTS PRESENTS DANS UN SOL, ET LA CAPACITE DE RETENTION D'UN SOL POUR DES POLLUANTS CIRCULANT EN SOLUTION AQUEUSE. UNE METHODOLOGIE D'ETUDE DE LA REPARTITION DE LA POLLUTION HYDROCARBONEE DANS UN SOL EN VUE D'UNE DEPOLLUTION OPTIMALE EST PROPOSEE. ELLE REPOSE SUR L'UTILISATION DE MOYENS SIMPLES ET ABOUTIT A LA CARACTERISATION DES POLLUANTS AU SEIN DES SOLS DU POINT DE VUE DE LA CHARGE GLOBALE DE POLLUTION ET DE LA DISTRIBUTION GRANULOMETRIQUE. L'ETAT D'AGGLOMERATION DES GRAINS ET LA TAILLE MOYENNE DES AGGLOMERATS APPARAISSENT COMME DES PARAMETRES MAJEURS DE L'ACCESSIBILITE ET DE LA FACILITE DE DISSOLUTION ET DE TRANSFERTS DES POLLUANTS DANS L'ENVIRONNEMENT. LES EAUX SONT L'UN DES PRINCIPAUX VECTEURS DE DIFFUSION DE LA POLLUTION. TOUTEFOIS, DANS LES CONDITIONS D'ESSAIS DE PERCOLATION D'EAU QUI ETAIENT LES NOTRES, IL EST APPARU QUE LA POLLUTION ISSUE DE LA PYROLYSE DE LA HOUILLE, CONSTITUEE D'HYDROCARBURES AROMATIQUES POLYCYCLIQUES, EST RELATIVEMENT STABLE. EN EFFET, LE POURCENTAGE DE HAP LESSIVES - QUANTITE DE POLLUANT PASSEE EN SOLUTION DANS L'EAU SUR LA QUANTITE DE POLLUANT PRESENTE DANS LE SOL AU DEBUT DE L'ESSAI - DEPASSE RAREMENT 1% (POUR UN SOL CONTENANT ENVIRON 4000 MG DE HAP PAR KG DE SOL). CETTE OBSERVATION, ASSOCIEE A D'AUTRES, NOUS CONDUIT A PENSER QUE DANS CERTAINES CONDITIONS, IL PEUT ETRE PLUS DANGEREUX EN MATIERE DE RELARGAGE DES POLLUANTS DANS L'ENVIRONNEMENT DE MANIPULER UN SOL POLLUE, QUE DE LE LAISSER EN PLACE. LE PREMIER ELEMENT QUI PEUT RETENIR LES POLLUANTS ET EMPECHER LEUR DIFFUSION EST LE SOL. QUEL QUE SOIT LE POLLUANT ETUDIE EN SOLUTION (NH#+#4, PHENOL OU NAPHTALENE), UNE INTERACTION ENTRE LE SOL ET CHACUN DES POLLUANTS A EU LIEU. OR LA CAPACITE DE RETENTION D'UN SOL VA DEPENDRE DES POLLUANTS, MAIS AUSSI DE LA NATURE MEME DU SOL LUI. DANS DES CONDITIONS DE SOL DIFFERENTES LA RETENTION D'UN POLLUANT PEUT ALORS VARIER DE 1 A 10. ET A CAUSE D'UNE COMPOSITION SOUVENT HETEROGENE DES SOLS DES SITES INDUSTRIELS, LA DIFFICULTE SERA DE PREDIRE LES CONDITIONS DANS LESQUELLES CIRCULERONT LES SOLUTIONS POLLUEES.
Download or read book Comportement dans le sol de polluants aromatiques issus du goudron de houille written by Borhane Mahjoub and published by . This book was released on 1999 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'ensemble des pays industrialisés comptent sur leurs territoires de nombreux sites potentiellement pollués par le goudron de houille. A long terme, la mobilité des polluants dans le sol est principalement contrôlée par la dissolution dans l'eau des composés du goudron ainsi que par les phénomènes d'adsorption 1 désorption et de biodégradation de ces polluants dans le sol. Trois polluants modèles ainsi que plusieurs fractions de sols et des sols de référence ont été sélectionnés lors de notre étude qui s'est déroulée en 2 principales étapes: - Etude des équilibres et des cinétiques de partage des polluants organiques entre le goudron de houille et l'eau -Etude de l'adsorption et de la désorption des polluants organiques dans le sol, en considérant les cinétiques de transfert à court et à long terme. Les résultats expérimentaux nous montrent que le goudron de houille ne possède pas un comportement idéal décrit par la loi de Raoult. Les principaux mécanismes de transfert goudron/eau identifiés sont la solubilisation quasi-instantanée des polluants proches de l'interface PLA/eau, et la diffusion lente des polluants au sein de la PLNA et à l'interface. Les résultats montrent de plus que plusieurs facteurs peuvent modifier la vitesse et l'ampleur du relargage (température, pH, force ionique, vieillissement de l'interface ...). Les résultats de la seconde partie de l'étude montrent une diminution de la mobilité des polluants avec l'augmentation de la durée de contact polluant/sol. Nous avons de plus observé que la succession des cycles de gel/dégel tendait à limiter l'effet du vieillissement. La rétention à cinétique lente du polluant par le sol ou l'argile est très probablement due à la lente diffusion moléculaire au sein des micropores des agrégats ou bien au sein de la matière organique du sol
Download or read book Etude des m canismes de r tention et de transfert des polluants non miscibles dans les sols fins non satur s written by Pascale Alzoghbi-Massaad and published by . This book was released on 2001 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les préoccupations accrues liées aux problèmes des sols pollués par les hydrocarbures de sources anthropiques (transport routier et fluvial, effluents industriels, extraction et transport du pétrole, chauffage) ou naturelles (feux de forêt), ont conduit à s'intéresser à ce type de pollution. Lorsqu'un produit pétrolier est malencontreusement déversé à la surface du sol, il s'infiltre en traversant d'abord la zone non saturée pour atteindre la zone saturée, affectant ainsi la qualité de la nappe phréatique. Par évaporation certains composants volatiles peuvent également polluer l'air. Le but de ce travail est d'étudier les mécanismes de rétention et du transfert d'un polluant hydrocarboné dans la zone non saturée, qui constitue l'interface entre l'atmosphère et la nappe phréatique. L'étude est réalisée sur un limon des Plateaux de l'Est parisien (limon de Jossigny) compacté, le polluant utilisé étant un hydrocarbure désaromatisé(Soltrol 170). Des cellules de rétention triphasiques originales ont été développées afin de permettre la détermination de la courbe de rétention en huile des échantillons de limon compacté non saturé, ainsi que l'étude du transfert de l'hydrocarbure lorsque trois fluides coexistent au sein de l'espace poreux du sol (eau /air /huile). Cette étude a été complétée par une étude microstructurale qui a mis en évidence l'augmentation de la macroporosité due à l'infiltration du polluant. Des essais de résistance à la compression simple nous ont permis d'identifier les trois mécanismes d'interaction possibles entre le polluant et le sol non saturé. A faibles densité et degré de saturation, le polluant peut se trouver en contact direct avec les minéraux argileux, ce qui engendre un raidissement du matériau. A une densité moyenne, c'est la capillarité qui caractérise les interactions entre fluides. A forte densité, le comportement du sol est conditionné par le piégeage de l'air. Nous avons réalisé une analyse numérique à l'aide d'un code calcul développé au CERMES(UDAM), pour simuler le transfert du polluant dans un massif de sol, et ceci grâce à l'intégration des paramètres nécessaires déterminés par les essais expérimentaux. Cette approche numérique a montré que le débit joue un rôle important sur le transfert du polluant dans les sols.
Download or read book Modelisation de la pollution des sols et des nappes par des hydrocarbures written by Philippe Tardy and published by . This book was released on 1996 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modelisation de la pollution des sols et des nappes par des hydrocarbures written by Philippe Tardy and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Remediation Case Studies written by and published by . This book was released on 1995 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Water and Land Security in Drylands written by Mohamed Ouessar and published by Springer. This book was released on 2017-04-25 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents recent lessons learned in the context of research and development for various dryland ecosystems, focusing on water resources management, land and vegetation cover degradation and remediation, and socioeconomic aspects, as well as integrated approaches to ensuring water and land security in view of the current and predicted climate change. As water and land are the essential bases of food production, the management of these natural resources is becoming a cornerstone for the development of dryland populations. The book gathers the peer-reviewed, revised versions of the most outstanding papers on these topics presented at the ILDAC2015 Conference in Djerba, Tunisia.
Download or read book Water Heritage written by Willem Willems and published by . This book was released on 2017-01-15 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water is vital for life, and its availability has been a concern for mankind throughout the ages. Its presence has always been ascertained in a variety of ways and the development of human society everywhere is connected with various forms of water management. Man also needed to manage water to find protection from its dangers and the need for that is increasing. In the coming decades, the impact of climate change is expected to intensify floods and droughts, affect groundwater resources, raise sea levels, increase pollution and enhance the frequency and magnitude of disasters. Societies around the world are challenged to adapt to these threats to ensure water security, economic prosperity and environmental and cultural sustainability. This book deals with the heritage of water management and the use that was made of water, as well as the impact of water management on heritage. An example of the former may be an ancient irrigation system in the Filipines or in the Middle East that still functions today, while the latter may reflect the importance of maintaining groundwater levels for the preservation of organic remains on archaeological sites or of wooden piles underneath standing buildings. In either case the papers in this book reflect the dynamic nature of water, and hence the equally dynamic relation between water management and heritage. This publication follows up on a Heritage and Water conference in Amsterdam, the first of its kind. Its main purpose is to credibly present the importance and value of heritage and historical experience for water and sustainable development, and vice versa, present the importance of water management for the protection of heritage. It presents evolving insights and concepts about Water and about Heritage from a variety of disciplines, policy and public perspectives illustrated with cases studies and aims to connect decision makers with experts such as engineers, archaeologists, historians, geographers, ecologist and landscape architects
Download or read book Basic Technics in Ecological Farming Techniques de Base en Agriculture Biologique Grunds tzliche Verfahren der kologischen Landwirtschaft Le Maintien de la Fertilit des Sols The Maintenance of Soil Fertility Die Erhaltung der Bodenfruchtbarkeit written by Stuart Hill and published by Birkhäuser. This book was released on 2013-12-14 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Groundwater Modelling in Arid and Semi Arid Areas written by Howard S. Wheater and published by Cambridge University Press. This book was released on 2010-09-09 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Arid and semi-arid regions face major challenges in the management of scarce freshwater resources under pressures of population, economic development, climate change, pollution and over-abstraction. Groundwater is commonly the most important water resource in these areas. Groundwater models are widely used globally to understand groundwater systems and to guide decisions on management. However, the hydrology of arid and semi-arid areas is very different from that of humid regions, and there is little guidance on the special challenges of groundwater modelling for these areas. This book brings together the experience of internationally leading experts to fill a gap in the scientific and technical literature. It introduces state-of-the-art methods for modelling groundwater resources, illustrated with a wide-ranging set of illustrative examples from around the world. The book is valuable for researchers, practitioners in developed and developing countries, and graduate students in hydrology, hydrogeology, water resources management, environmental engineering and geography.
Download or read book Oil Spill Environmental Forensics written by Zhendi Wang and published by Elsevier. This book was released on 2010-07-26 with total page 617 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oil Spill Environmental Forensics provides a complete view of the various forensic techniques used to identify the source of an oil spill into the environment. The forensic procedures described within represent various methods from scientists throughout the world. The authors explore which analytical and interpretative techniques are best suited for a particular oil spill project. This handy reference also explores the use of these techniques in actual environmental oil spills. Famous incidents discussed include the Exxon Valdez incident in 1989 and the Guanabara Bay, Brazil 2000. The authors chronicle both the successes and failures of the techniques used for each of these events. Dr. Zhendi Wang is a senior research scientist and Head of Oil Spill Research of Environment Canada, working in the oil and toxic chemical spill research field. He has authored over 270 academic publications and won a number of national and international scientific honors and awards. Dr. Wang is a member of American Chemical Society (ACS), the Canadian Society for Chemistry (CSC), and the International Society of Environmental Forensics (ISEF). International experts show readers the forensic techniques used in oil spill investigations Provides the theoretical basis and practical applications for investigative techniques Contains numerous case studies demonstrating proven technique
