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Author :
Publisher :
ISBN 13 :
Total Pages : 644 pages
Book Rating : 4.3/5 (91 download)
Download or read book Water Research written by and published by . This book was released on 1995 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Nicolas Flipo
Publisher : Springer Nature
ISBN 13 : 3030542602
Total Pages : 430 pages
Book Rating : 4.0/5 (35 download)
Download or read book The Seine River Basin written by Nicolas Flipo and published by Springer Nature. This book was released on 2021-01-30 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book reviews the water-agro-food and socio-eco-system of the Seine River basin (76,000 km2), and offers a historical perspective on the river’s long-term contamination. The Seine basin is inhabited by circa 17 million people and is impacted by intensive agricultural practices and industrial activities. These pressures have gradually affected its hydrological, chemical and ecological functioning, leading to a maximum chemical degradation between the 1960s and the 1990s. Over the last three decades, while major water-quality improvements have been observed, new issues (e.g. endocrine disruptors, microplastics) have also emerged. The state of the Seine River network, from the headwaters to estuary, is increasingly controlled by the balance between pressures and social responses. This socio-ecosystem provides a unique example of the functioning of a territory under heavy anthropogenic pressure during the Anthropocene era. The achievements made were possible due to the long-term PIREN Seine research program, established in 1989 and today part of the French socio-ecological research network “Zones Ateliers”, itself part of the international Long-term Socio-economic and Ecological Research Network (LTSER). Written by experts in the field, the book provides an introduction to the water budget and the territorial metabolism of the Seine basin, and studies the trajectories and impact of various pollutants in the Seine River. It offers insights into the ecological functioning, the integration of agricultural practices, the analysis of aquatic organic matter, and the evolution of fish assemblages in the Seine basin, and also presents research perspectives and approaches to improve the water quality of the Seine River. Given its scope, it will appeal to environmental managers, scientists and policymakers interested in the long-term contamination of the Seine River.
Author :
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ISBN 13 :
Total Pages : 84 pages
Book Rating : 4.:/5 (932 download)
Download or read book Méthodes de laboratoire pour l'analyse des sédiments written by and published by . This book was released on 1988 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ce guide contient la description des méthodes d'analyse en laboratoire d'échantillons de sédiments fluviaux, et renferme les instructions détaillées pour assurer le respect des normes nationales et une certaine uniformité dans l'ensemble des Laboratoires sédimentologiques de la Division des relevés hydrologiques du Canada, pour ce qui est de ces méthodes. On se penche particulièrement sur les points suivants: les chiffres significatifs, unités et classification; la méthode pour l'analyse de la concentration; la méthode pour l'analyse granulométrique; le relevé des données relatives au tube de prélèvement de fond; la courbe d'Odén; les méthodes pour l'analyse granulométrique d'échantillons de matériaux de charriage; et, l'analyse granulométrique d'échantillons de charriage de fond.
Author : Franck Marot
Publisher :
ISBN 13 :
Total Pages : 352 pages
Book Rating : 4.F/5 ( download)
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.
Author : G.. Rofes
Publisher :
ISBN 13 :
Total Pages : 50 pages
Book Rating : 4.:/5 (492 download)
Download or read book Etude des sédiments. Méthodes de prélèvement et d' analyses pratiquées au laboratoire de sédimentologie written by G.. Rofes and published by . This book was released on 1980 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Yong Cai
Publisher :
ISBN 13 :
Total Pages : 456 pages
Book Rating : 4.:/5 (318 download)
Download or read book Biogeochemistry of Environmentally Important Trace Elements written by Yong Cai and published by . This book was released on 2003 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biogeochemistry of Environmentally Important Trace Elements discusses fate, transport, and transformation in soils, waters, and plants in biogeochemistry of environmentally important trace elements, with a focus on arsenic, mercury, and selenium.
Author : Cédric Gabelle
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (493 download)
Download or read book Étude de la contamination des sédiments par les métaux dans les canaux et rivières du Nord de la France written by Cédric Gabelle and published by . This book was released on 2006 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ce travail porte sur l'étude de la contamination métallique des sédiments. Il s'inscrit dans le cadre du programme de recherche INTERREG III STARDUST qui s'intéresse au devenir des contaminants métalliques dans les sédiments de la zone transfrontalière Franco-Belge. Des sédiments ont ainsi été prélevés sur les différents sites d'étude situés dans le bassin de l'Escaut. L'étude menée sur les sédiments de la Deùle a notamment permis de mettre en évidence une forte contamination par les métaux (Pb, Zn, Cd .. ) surtout au voisinage de l'ancienne usine Métaleurop. Cependant, ces sédiments ne semblent présenter un caractère toxique que dans la zone située à proximité de Métaleurop, en dehors de cette zone, la majorité des métaux "disponibles" est piégée dans les phases soufrées du sédiment. De plus, les études de remobilisation ont montré que les sédiments contaminés de Métaleurop ne relarguent pas de quantités importantes de métaux dans l'eau du canal. Il est même intéressant de constater que lors du mélange des scories et des sédiments avec l'eau du canal, une quantité importante des métaux relargués par les scories est piégée par les sédiments. Enfin, des techniques d'échantillonnage in situ basées sur la diffusion au travers d'un gel (DET et DGT) ont été utilisées sur les sédiments de l'Escaut et de la Lys afin de réaliser des profils de métaux et d'anions dans les eaux interstitielles à une échelle millimétrique. Ces résultats ont notamment permis de mettre en avant l'association de certains contaminants avec les phases porteuses du sédiment tels que les oxydes de fer et de manganèse permettant une meilleure compréhension des processus se déroulant à l'interface eau-sédiment.
Author : Raad Al-Shukry
Publisher :
ISBN 13 :
Total Pages : 132 pages
Book Rating : 4.:/5 (799 download)
Download or read book Détermination de la pollution des sédiments d'un cours d'eau par des métaux lourds (Cu, Zn, Pb, Ni) written by Raad Al-Shukry and published by . This book was released on 1993 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: LES OBJECTIFS DE CETTE ETUDE SONT L'EVALUATION DU NIVEAU DE CONTAMINATION DES SEDIMENTS D'UN COURS D'EAU LE PALAIS EN AVAL D'UN REJET INDUSTRIEL C.G.E.P. ET LA MISE EN EVIDENCE DE L'INFLUENCE DE CERTAINS PARAMETRES PHYSICO-CHIMIQUES SUR LES PHENOMENES D'ADSORPTION ET DE RELARGAGE DES METAUX LOURDS. LA PREMIERE PARTIE SE PROPOSE DE DETERMINER LES TENEURS EN METAUX LOURDS (CD, CU, FE, NI, PB ET ZN) DES SEDIMENTS, PRELEVES EN AVAL DU REJET, ET DE SUIVRE LEURS VARIATIONS TEMPORELLE ET SPATIALE. ELLE S'ACCOMPAGNE DE L'ANALYSE DE L'IMPACT DE POLLUTION ET DE SON EVOLUTION EN FONCTION DE DIVERS EVENEMENTS HYDROLOGIQUES ET CLIMATIQUES QUI INFLUENCENT NON SEULEMENT LE DEBIT DU COURS D'EAU MAIS AUSSI LES PHENOMENES D'ACCUMULATION ET DE RELARGAGE DES METAUX. LA DEUXIEME PARTIE CONSACREE AUX CONDITIONS D'ADSORPTION ET DE RELARGAGE DE CU, CD, ZN ET PB, A ETE REALISEE AU LABORATOIRE SUR DES ECHANTILLONS PRELEVES EN AMONT ET EN AVAL DU REJET. LES RESULTATS OBTENUS CONFIRMENT L'INFLUENCE DU PH, DE LA FORCE IONIQUE ET DE LA TEMPERATURE SUR LES ECHANGES DE METAUX A L'INTERFACE EAU-SEDIMENTS. LES REACTIONS D'ADSORPTION DE CES METAUX SUR LES SEDIMENTS SE DEROULENT EN DEUX ETAPES DISTINCTES: UNE EST RAPIDE (QUELQUES HEURES), LA DEUXIEME EST PLUS LENTE (1-5 JOURS) ET ABOUTIT POUR CU, ZN ET CD A UN ETAT DE PSEUDO-EQUILIBRE. UNE AUGMENTATION DU PH (5-8) FAVORISE LEUR ADSORPTION. LES POURCENTAGES DE RELARGAGE DES METAUX ETUDIES OBTENUS DANS DIFFERENTES CONDITIONS CONFIRMENT LES RESULTATS PRECEDENTS DE L'ADSORPTION; ON OBSERVE EN EFFET UNE DIMINUTION DU RELARGAGE APRES AUGMENTATION DU PH (5-8).
Author :
Publisher :
ISBN 13 :
Total Pages : 288 pages
Book Rating : 4.:/5 (49 download)
Download or read book The Science of the Total Environment written by and published by . This book was released on 1995 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: An international journal for scientific research into the environment and its relationship with man.
Author : Daniel Robbe
Publisher :
ISBN 13 : 9782720835209
Total Pages : 149 pages
Book Rating : 4.8/5 (352 download)
Download or read book Interprétation des teneurs en éléments métalliques associés aux sédiments written by Daniel Robbe and published by . This book was released on 1983 with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt: A PARTIR D'ETUDES REALISEES DANS DES MILIEUX TRES VARIES (ESTUAIRES, RIVIERES, ETANGS), L'AUTEUR COMPARE LES DIVERSES METHODES PRECONISEES (ANALYSE SUR UNE FRACTION FINE, CORRECTIONS GRANULOMETRIQUES OU MINERALOGIQUES, NORMALISATIONS, CORRELATIONS) AFIN DE DETERMINER CELLES QUI SEMBLENT LE PLUS GENERALEMENT UTILISABLES AINSI QUE LEURS CONDITIONS D'APPLICATION. ON S'ATTACHE EGALEMENT A DEFINIR LES DIFFERENTS TYPES D'ETUDES QUE L'ON PEUT REALISER A PARTIR DU DOSAGE DES METAUX LIES AUX SEDIMENTS AINSI QUE L'APPORT DE NOUVELLES TECHNIQUES TELLES QUE LES MINERALISATIONS SELECTIVES ET LES DATATIONS A LA COMPREHENSION DES PHENOMENES MIS EN JEU
Author :
Publisher :
ISBN 13 :
Total Pages : 610 pages
Book Rating : 4.3/5 (91 download)
Download or read book Conference Papers Index written by and published by . This book was released on 1978 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt: Monthly. Papers presented at recent meeting held all over the world by scientific, technical, engineering and medical groups. Sources are meeting programs and abstract publications, as well as questionnaires. Arranged under 17 subject sections, 7 of direct interest to the life scientist. Full programs of meetings listed under sections. Entry gives citation number, paper title, name, mailing address, and any ordering number assigned. Quarterly and annual indexes to subjects, authors, and programs (not available in monthly issues).
Author : Linda Strande
Publisher : IWA Publishing
ISBN 13 : 1780404735
Total Pages : 428 pages
Book Rating : 4.7/5 (84 download)
Download or read book Faecal Sludge Management written by Linda Strande and published by IWA Publishing. This book was released on 2014-08-15 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is estimated that literally billions of residents in urban and peri-urban areas of Africa, Asia, and Latin America are served by onsite sanitation systems (e.g. various types of latrines and septic tanks). Until recently, the management of faecal sludge from these onsite systems has been grossly neglected, partially as a result of them being considered temporary solutions until sewer-based systems could be implemented. However, the perception of onsite or decentralized sanitation technologies for urban areas is gradually changing, and is increasingly being considered as long-term, sustainable options in urban areas, especially in low- and middle-income countries that lack sewer infrastructures. This is the first book dedicated to faecal sludge management. It compiles the current state of knowledge of the rapidly evolving field of faecal sludge management, and presents an integrated approach that includes technology, management, and planning based on Sandecs 20 years of experience in the field. Faecal Sludge Management: Systems Approach for Implementation and Operation addresses the organization of the entire faecal sludge management service chain, from the collection and transport of sludge, and the current state of knowledge of treatment options, to the final end use or disposal of treated sludge. The book also presents important factors to consider when evaluating and upscaling new treatment technology options. The book is designed for undergraduate and graduate students, and engineers and practitioners in the field who have some basic knowledge of environmental and/or wastewater engineering.
Author : Marie Svoboda
Publisher : Getty Publications
ISBN 13 : 1606066536
Total Pages : 413 pages
Book Rating : 4.6/5 (6 download)
Download or read book Mummy Portraits of Roman Egypt written by Marie Svoboda and published by Getty Publications. This book was released on 2020-08-25 with total page 413 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication presents fascinating new findings on ancient Romano-Egyptian funerary portraits preserved in international collections. Once interred with mummified remains, nearly a thousand funerary portraits from Roman Egypt survive today in museums around the world, bringing viewers face-to-face with people who lived two thousand years ago. Until recently, few of these paintings had undergone in-depth study to determine by whom they were made and how. An international collaboration known as APPEAR (Ancient Panel Paintings: Examination, Analysis, and Research) was launched in 2013 to promote the study of these objects and to gather scientific and historical findings into a shared database. The first phase of the project was marked with a two-day conference at the Getty Villa. Conservators, scientists, and curators presented new research on topics such as provenance and collecting, comparisons of works across institutions, and scientific studies of pigments, binders, and supports. The papers and posters from the conference are collected in this publication, which offers the most up-to-date information available about these fascinating remnants of the ancient world. The free online edition of this open-access publication is available at www.getty.edu/publications/mummyportraits/ and includes zoomable illustrations and graphs. Also available are free PDF, EPUB, and Kindle/MOBI downloads of the book.
Author : World Health Organization
Publisher : World Health Organization
ISBN 13 : 9789241545037
Total Pages : 260 pages
Book Rating : 4.5/5 (45 download)
Download or read book Guidelines for Drinking-water Quality written by World Health Organization and published by World Health Organization. This book was released on 1993 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume describes the methods used in the surveillance of drinking water quality in the light of the special problems of small-community supplies, particularly in developing countries, and outlines the strategies necessary to ensure that surveillance is effective.
Author : Clarence Dietz Brenner
Publisher :
ISBN 13 :
Total Pages : 298 pages
Book Rating : 4.:/5 (321 download)
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:
Author : Olga Soffer
Publisher : Springer Science & Business Media
ISBN 13 : 1461318173
Total Pages : 383 pages
Book Rating : 4.4/5 (613 download)
Download or read book The Pleistocene Old World written by Olga Soffer and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 383 pages. Available in PDF, EPUB and Kindle. Book excerpt: Regional approaches to past human adaptations have generated much new knowledge and understanding. Researchers working on problems of adaptations in the Holocene, from those of simple hunter-gatherers to those of complex sociopolitical entities like the state, have found this approach suitable for comprehension of both ecological and social aspects of human behavior. This research focus has, however, until recently left virtually un touched a major spatial and temporaI segment of prehistory-the Old World during the Pleistocene. Extant literature on this period, by and large, presents either detailed site speeific accounts or offers continental or even global syntheses that tend to compile site speeific information but do not integrate it into whole c~nstructs of funetioning so ciocuhural entities. This volume presents our current state of knowledge about a variety of regional adaptations that charaeterized prehistoric groups in the Old World before 10,000 B. P. The authors of the chapters consider the behavior of humans rather than that of objects or features and present data and models for variaus aspects of past cultures and for culture change. These presentations integrate findings and understandings derived from a number of related disciplines actively involved in researching the past. Data and interpretations are offered on a range of Old \yorld regions during the PaIeolithic, induding Africa, Asia, Australia, and Europe, and chronological coverage spans from the Early to Late PIeisto cene.
Author : Andreas Pastoors
Publisher : Springer Nature
ISBN 13 : 3030604063
Total Pages : 437 pages
Book Rating : 4.0/5 (36 download)
Download or read book Reading Prehistoric Human Tracks written by Andreas Pastoors and published by Springer Nature. This book was released on 2021 with total page 437 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Open Access book explains that after long periods of prehistoric research in which the importance of the archaeological as well as the natural context of rock art has been constantly underestimated, research has now begun to take this context into focus for documentation, analysis, interpretation and understanding. Human footprints are prominent among the long-time under-researched features of the context in caves with rock art. In order to compensate for this neglect an innovative research program has been established several years ago that focuses on the merging of indigenous knowledge and western archaeological science for the benefit of both sides. The book gathers first the methodological diversity in the analysis of human tracks. Here major representatives of anthropological, statistical and traditional approaches feature the multi-layered methods available for the analysis of human tracks. Second it compiles case studies from around the globe of prehistoric human tracks. For the first time, the most important sites which have been found worldwide are published in a single publication. The third focus of this book is on firsthand experiences of researchers with indigenous tracking experts from around the globe, expounding on how archaeological sciencecan benefit from the ancestral knowledge. This book will be of interest to professional archaeologists, graduate students, ecologists, cultural anthropologists and laypeople, especially those focussing on hunting-gathering and pastoralist communities and who appreciate indigenous knowledge.--
