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Caracterisation Et Traitement De Sediments De Dragage Contenant Des Polluants Metalliques
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Book Synopsis Caractérisation et traitement de sédiments de dragage contenant des polluants métalliques by : Franck Marot
Download or read book Caractérisation et traitement de sédiments de dragage contenant des polluants métalliques written by Franck Marot and published by . This book was released on 1998 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'objectif de cette étude est d'évaluer les possibilités de décontamination des vases de dragage polluées par des métaux lourds et de déterminer leur devenir après traitement. Les travaux portent sur des sédiments d'estuaires et de canaux prélèves sur différents sites français. Dans un premier temps, les caractérisations physiques, chimiques et minérales de ces produits ont montré des pollutions complexes et parfois très marquées. Les études de spéciation menées par une succession de séparations physiques, d'observations binoculaires et d'analyses au microscope électronique a balayage et a la microsonde, ont permis de déterminer pour chaque sédiment, les principaux porteurs de métaux (microsulfures, précipitations de carbonates, adsorptions sur des grains d'oxyde de fer, particules anthropiques,...). A l'issue de ces travaux, des essais de traitement physique et physico-chimique visant à concentrer ces porteurs sur une fraction pondérale réduite, ont été effectués. La flottation a conduit aux résultats les plus prometteurs. L'efficacité de cette technique de tri est cependant très sensible à la nature des collecteurs chimiques utilises et seuls des tests d'optimisation sont en mesure de parfaire leur choix. Par ailleurs, selon les objectifs de décontamination fixés, des séparations gravimétriques ou densimétriques complémentaires peuvent permettre d'affiner le traitement. Dans un troisième temps, le devenir des matériaux traités a été étudié sur le plan du comportement mécanique. Avec des fractions fines souvent importantes, la consolidation de ces produits est très lente. Pour prédire son évolution dans le temps, une étude expérimentale a été menée en centrifugeuse sous macrogravité. Les degrés de consolidation atteints en fin d'essai (90% après un temps équivalent de 900 jours) et les tassements mesures (70% de la hauteur initiale) ont montré la lenteur et l'importance du phénomène étudié.
Book Synopsis PRO 40: International RILEM Conference on the Use of Recycled Materials in Buildings and Structures (Volume 2) by : Enric Vázquez
Download or read book PRO 40: International RILEM Conference on the Use of Recycled Materials in Buildings and Structures (Volume 2) written by Enric Vázquez and published by RILEM Publications. This book was released on 2004 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Engineering Geology and the Environment by : Paul G. Marinos
Download or read book Engineering Geology and the Environment written by Paul G. Marinos and published by CRC Press. This book was released on 1997 with total page 1168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ground Improvement Geosystems by : Michael C. R. Davies
Download or read book Ground Improvement Geosystems written by Michael C. R. Davies and published by Thomas Telford. This book was released on 1997 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: The papers presented in this volume describe the latest developments from around the world on ground improvement by densification and reinforcement. They describe new research into improving the understanding of the problems facing geotechnical engineers working in the field of ground improvement and the advances in the techniques available to them. Numerous case studies show how new and improved methods have actually been applied over a wide variety of ground conditions.
Book Synopsis Recycling and Reuse of Waste Materials by : Ravindra K. Dhir
Download or read book Recycling and Reuse of Waste Materials written by Ravindra K. Dhir and published by Thomas Telford Publishing. This book was released on 2003 with total page 882 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents part of the proceedings of two symposia held under the umbrella of Advances in Waste Management, an international meeting organised by the University of Dundees Concrete Technology Unit.
Download or read book Scientific Report written by and published by . This book was released on 1997 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: Principal scientific and technical results.
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:
Book Synopsis Effects of Trawling and Dredging on Seafloor Habitat by : National Research Council
Download or read book Effects of Trawling and Dredging on Seafloor Habitat written by National Research Council and published by National Academies Press. This book was released on 2002-08-09 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concerns over the potential ecological effects of fishing have increased with the expansion of fisheries throughout the marine waters of the United States. Effects of Trawling and Dredging on Seafloor Habitat describes how assessment of fishing impacts depends on gear type, number and location of bottom tows, and the physical and biological characteristics of seafloor habitats. Many experimental studies have documented acute, gear-specific effects of trawling and dredging on various types of habitat. These studies indicate that low mobility, long-lived species are more vulnerable to towed fishing gear than short-lived species in areas where the seabed is often disturbed by natural phenomena. Trawling and dredging may also change the composition and productivity of fish communities dependent on seafloor habitats for food and refuge. The scale of these impacts depends on the level of fishing effort. This volume presents color maps of fishing effort for all regions with significant bottom trawl or dredge fisheries-the first time that such data has been assembled and analyzed for the entire nation.
Book Synopsis Introduction to Ceramics by : W. David Kingery
Download or read book Introduction to Ceramics written by W. David Kingery and published by John Wiley & Sons. This book was released on 1976-05-04 with total page 1060 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 2nd edition of Introduction to Ceramics has been printed 15 years after the 1st edition. Many advances have been made in understanding and controlling and developing new ceramic processes and products. this text has a considerable amount of new material and the product modification.
Author :Food and Agriculture Organization of the United Nations Publisher :Food & Agriculture Org. ISBN 13 :9789251055212 Total Pages :116 pages Book Rating :4.0/5 (552 download)
Book Synopsis Guidelines for Soil Description by : Food and Agriculture Organization of the United Nations
Download or read book Guidelines for Soil Description written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2006 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soils are affected by human activities, such as industrial, municipal and agriculture, that often result in soil degradation and loss. In order to prevent soil degradation and to rehabilitate the potentials of degraded soils, reliable soil data are the most important prerequisites for the design of appropriate land-use systems and soil management practices as well as for a better understanding of the environment. The availability of reliable information on soil morphology and other characteristics obtained through examination and description of the soil in the field is essential, and the use of a common language is of prime importance. These guidelines, based on the latest internationally accepted systems and classifications, provide a complete procedure for soil description and for collecting field data. To help beginners, some explanatory notes are included as well as keys based on simple test and observations.--Publisher's description.
Book Synopsis Emerging Micro-pollutants in the Environment by : Sudarshan Kurwadkar
Download or read book Emerging Micro-pollutants in the Environment written by Sudarshan Kurwadkar and published by ACS Symposium. This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Distributed in print by Oxford University Press."
Book Synopsis Global Atlas of Marine Fisheries by : Daniel Pauly
Download or read book Global Atlas of Marine Fisheries written by Daniel Pauly and published by Island Press. This book was released on 2016-10-06 with total page 519 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Global Atlas of Marine Fisheries is the first and only book to provide accurate, country-by-country fishery catch data. This groundbreaking information has been gathered from independent sources by the world's foremost fisheries experts. Edited by Daniel Pauly and Dirk Zeller of the Sea Around Us Project, the Atlas includes one-page reports on 273 countries and their territories, plus fourteen topical global chapters. Each national report describes the current state of the country's fishery; the policies, politics, and social factors affecting it; and potential solutions. The global chapters address cross-cutting issues, from the economics of fisheries to the impacts of mariculture. Extensive maps and graphics offer attractive and accessible visual representations.
Book Synopsis A Guide To Soil Mechanics by : Malcolm D Bolton
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.
Book Synopsis Earth Surface Processes, Landforms and Sediment Deposits by : John Bridge
Download or read book Earth Surface Processes, Landforms and Sediment Deposits written by John Bridge and published by Cambridge University Press. This book was released on 2008-05 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A unique, advanced textbook combining sedimentology and geomorphology in a comprehensive and integrated way.
Book Synopsis Antibiotic Resistance in Aquatic Systems by : Satoru Suzuki
Download or read book Antibiotic Resistance in Aquatic Systems written by Satoru Suzuki and published by Frontiers Media SA. This book was released on 2017-04-10 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rivers, lakes and the ocean receive antibiotic resistance genes from human environments. The aquatic environments are a huge reservoir and exchange stage of antibiotic resistance genes.
Download or read book Cities at Risk written by Helene Joffe and published by Springer Science & Business Media. This book was released on 2013-03-27 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the major growth of the world’s population over the past century, as well as rapid urbanisation, people increasingly live in crowded cities. This trend is often accompanied by proliferation of poorly built housing, uncontrolled use of land, occupation of unsafe environments and overstretched services. When a natural hazard strikes such a city many people are vulnerable to loss of life and property. This book explores what these people think and feel about the threats that they face. How do they live with perils ranging from earthquakes to monsoons, from floods to hurricanes, in the 21st century? The authors are drawn from a large range of disciplines: Psychology, Engineering, Geography, Anthropology and Urban Planning. They also reflect on how perils are represented in multiple cultures: the United States, Japan, Turkey, Bangladesh, the United Kingdom and New Zealand. The book therefore not only brings to light the ways that different cultures represent natural hazards but also the different ways in which various disciplines write about living with perils in the 21st century. The book is addressed both to researchers and to organizations involved with risk management and risk mitigation.
Book Synopsis Environmental Microbiology: Fundamentals and Applications by : Jean-Claude Bertrand
Download or read book Environmental Microbiology: Fundamentals and Applications written by Jean-Claude Bertrand and published by Springer. This book was released on 2015-01-26 with total page 933 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a treatise on microbial ecology that covers traditional and cutting-edge issues in the ecology of microbes in the biosphere. It emphasizes on study tools, microbial taxonomy and the fundamentals of microbial activities and interactions within their communities and environment as well as on the related food web dynamics and biogeochemical cycling. The work exceeds the traditional domain of microbial ecology by revisiting the evolution of cellular prokaryotes and eukaryotes and stressing the general principles of ecology. The overview of the topics, authored by more than 80 specialists, is one of the broadest in the field of environmental microbiology. The overview of the topics, authored by more than 80 specialists, is one of the broadest in the field of environmental microbiology.
