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Contribution A Letude Des Transferts De Metaux Lourds Dans Le Systeme Sol Plante
Download Contribution A Letude Des Transferts De Metaux Lourds Dans Le Systeme Sol Plante full books in PDF, epub, and Kindle. Read online Contribution A Letude Des Transferts De Metaux Lourds Dans Le Systeme Sol Plante ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Contribution à l'étude des transferts de métaux lourds dans le système sol-plante by : Jean-Louis Morel
Download or read book Contribution à l'étude des transferts de métaux lourds dans le système sol-plante written by Jean-Louis Morel and published by . This book was released on 1985 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'étude des transferts de métaux lourds a été envisagée à 2 niveaux: en milieu naturel sur un sol contaminé en métaux lourds par des apports répétés de résidus urbains, et au niveau de la zone de contact sol-racine, la rhizosphère. Les travaux ont plus particulièrement intéressé les interactions entre les métaux lourds et les mucilages libérés dans le sol par la racine
Book Synopsis Soil Ecotoxicology by : Joseph Tarradellas
Download or read book Soil Ecotoxicology written by Joseph Tarradellas and published by CRC Press. This book was released on 1996-12-23 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soils are receptacles for a wide range of hazardous chemicals generated by human activities. Whether or not this contamination is deliberate, accurate toxicity assessments are important for health and economic reasons. Soil Ecotoxicology discusses the sources, fate, and transport of hazardous chemicals in soils. The fate (biodegradation and modeling) and the potential impacts of pesticides on soil ecosystems are emphasized, and methodologies for performing toxicity assessments are provided.
Book Synopsis Transfert Du Cadmium de Sols Pollués Aux Plantes by : Paul-Olivier Redon
Download or read book Transfert Du Cadmium de Sols Pollués Aux Plantes written by Paul-Olivier Redon and published by Editions Universitaires Europeennes. This book was released on 2010-06 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'accumulation de metaux lourds, dont le cadmium (Cd), dans les sols et leur transfert aux plantes sont problematiques a cause de leur toxicite. Les champignons mycorhiziens a arbuscules (MA) peuvent influencer le transfert du Cd de maniere directe en les transportant jusqu'aux racines et de maniere indirecte en favorisant la croissance de la plante. Des resultats divergents ont neanmoins ete reportes et leur role global doit etre eclairci. En prenant comme plante modele la luzerne Medicago truncatula, l'effet d'un champignon MA sur le bilan de Cd dans la plante, le sol et les percolats a ete etudie. La contribution du champignon au transfert de Cd a ete evaluee dans des cultures en pot et des dispositifs a compartiment. Le champignon a principalement influence la dynamique de Cd dans le systeme sol-plante de maniere indirecte en ameliorant fortement la croissance de la plante sur sol contamine, conduisant a une quantite plus importante de Cd exporte dans les parties aeriennes de la plante. Cette influence mycorhizienne est neanmoins complexe, elle est variable selon les conditions edaphiques et selon l'isolat du champignon etudie."
Book Synopsis Contribution à l'étude des interactions de la matière organique des sols avec les métaux lourds by : Pascal Gossart
Download or read book Contribution à l'étude des interactions de la matière organique des sols avec les métaux lourds written by Pascal Gossart and published by . This book was released on 2001 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dans de nombreux pays industriels (Etats-Unis, Europe, ...) et en particulier en France dans la région Nord-Pas de Calais, les activités minières et de fonderie ont pollué les sols environnants ainsi que les sédiments des eaux fluviales en espèces métalliques. Il s'avère nécessaire dorénavant d'évaluer le comportement de ces éléments en terme de risques pour la santé humaine. Dans ce contexte, par le choix de modèles des systèmes naturels, la fraction organique échangeable des sols est étudiée du point de vue des interactions avec divers cations métalliques (Pb, Cd et Zn). Ces modèles, composés de molécules simples et de différents acides humiques, ont permis de mettre en évidence les fortes activités d'échanges des systèmes naturels. L'implication des groupements fonctionnels carboxyliques et phénols pour l'interaction se révèle importante et parfaitement caractérisable par la spectroscopie infrarouge à transformée de Fourier, outil complémentaire idéal pour l'obtention d'informations moléculaires. L'étude en fonction de paramètres chimiques tels que le degré de pollution ainsi que le pH a permis de constater que les acides humiques ont des capacités d'interactions différentes suivant leurs structures. Sous forme acide et isolée, un acide humique a des capacités bien inférieures à interagir par échange cationique que ce même acide humique sous forme de sel, généralement plus proche des systèmes naturels.
Book Synopsis Etude des mécanismes de transfert des métaux en traces dans le système boue compostée-sol-plante et recherche de perturbations induites by : Pierre (19..-..... Planquart
Download or read book Etude des mécanismes de transfert des métaux en traces dans le système boue compostée-sol-plante et recherche de perturbations induites written by Pierre (19..-..... Planquart and published by . This book was released on 2000 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: LES PROCEDES BIOLOGIQUES AEROBIES PERMETTENT DE TRANSFORMER LES DECHETS ORGANIQUES EN COMPOSTS. LA VALORISATION AGRICOLE DE CES COMPOSTS CONTRIBUE A L'AMELIORATION DES PROPRIETES PHYSIQUES, CHIMIQUES ET BIOLOGIQUES DES SOLS MAIS LA PRESENCE D'ELEMENTS TRACES METALLIQUES LIMITE LEUR UTILISATION EN RAISON DES RISQUES DE TRANSFERTS A L'ENVIRONNEMENT AUXQUELS SONT ASSOCIES DES RISQUES ECOTOXICOLOGIQUES. LA MOBILITE ET LA BIODISPONIBILITE DES METAUX EN TRACES SONT ETROITEMENT LIEES AUX FORMES CHIMIQUES SOUS LESQUELLES ILS SE TROUVENT DANS LES COMPOSTS ET DANS LES SOLS, APRES EPANDAGE. LES RELATIONS BOUE COMPOSTEE - SOL - PLANTE ONT ETE ETUDIEES EN COLONNES LYSIMETRIQUES SUR DEUX CYCLES CULTURAUX DE COLZA (BRASSICA NAPUS V. JAGUAR). L'HORIZON AP D'UN SOL AGRICOLE A TEXTURE ARGILE LIMONO-SABLEUSE, L'HORIZON C D'UN SOL ACIDE A TEXTURE SABLEUSE ET L'HORIZON C D'UN SOL CALCAIRE A TEXTURE SABLO-LIMONEUSE ONT ETE UTILISES POUR ETRE AMENDES. LES COMPOSTS EMPLOYES COMME AMENDEMENT DIFFERENT SELON LEUR DEGRE DE MATURITE, LEURS TENEURS EN METAL TOTAL, EN DECA DES VALEURS LIMITES, ET SELON LA SPECIATION DES ELEMENTS METALLIQUES QU'ILS RENFERMENT. L'EPANDAGE DES BOUES COMPOSTEES, A DES DOSES D'APPORT POUVANT ATTEINDRE 60 T HA - 1, TEND A FAVORISER LA CROISSANCE DU VEGETAL. PARMI LES ELEMENTS TRACES METALLIQUES ETUDIES (CU, PB, NI ET ZN), LE ZINC EST LE METAL LE PLUS FORTEMENT TRANSFERE DANS LE PROFIL DES SUBSTRATS AMENDES ET AUX VEGETAUX. LES EXPORTATIONS DE METAUX EN TRACES PAR LES PERCOLATS ET LES VEGETAUX SONT PLUS FORTEMENT INFLUENCEES PAR LA NATURE DU SUBSTRAT QUE PAR CELLE DU COMPOST APPLIQUE ET LA DOSE D'EPANDAGE. L'ETUDE SOULIGNE L'IMPORTANCE DES PHENOMENES DE REFIXATION DES ELEMENTS METALLIQUES SUR LA PHASE MINERALE. DURANT LES DEUX CYCLES CULTURAUX, SEULES LES TENEURS EN ZINC DANS LES PLANTES CULTIVEES SUR LES DIFFERENTS SUBSTRATS SONT AUGMENTEES EN REPONSE A L'INCORPORATION DES COMPOSTS, CET ENRICHISSEMENT N'ETANT PAS PROPORTIONNEL A LA DOSE D'APPORT. DES DEREGLEMENTS DU REGIME NUTRITIONNEL DU COLZA SONT OBSERVES ET CE, MEME POUR DE FAIBLES APPORTS DE METAUX EN TRACES. DES PERTURBATIONS DE LA SYNTHESE DES PIGMENTS PHOTOSYNTHETIQUES SONT EGALEMENT RELEVEES. L'INDUCTION PAR LE CUIVRE DE LA SYNTHESE DE PHYTOCHELATINES CHEZ LE COLZA EST DEMONTREE. LA DETECTION DE CES PEPTIDES POUR DE FAIBLES CHARGES EN METAUX DANS LE SOL ET LA PLANTE TEMOIGNE DE LA SENSIBILITE DE CETTE INDUCTION.
Book Synopsis Bioavailability of Organic Xenobiotics in the Environment by : P. Baveye
Download or read book Bioavailability of Organic Xenobiotics in the Environment written by P. Baveye and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the continuing fight against organic environmental xenobiotics, the initial success attributed to bioremediation has paled, in part due to the low availability of xenobiotics entrapped within a soil or sediment matrix. This has generated a very significant wave of interest in the bioavailability issue. However, much experimental evidence is puzzling or contradictory, mechanistic theories are embryonic, and implications for the practice of bioremediation or concerning the natural fate of xenobiotics are still tentative. The debate in Europe and the USA is vigorous. Eastern Europe, following the liberalisation of the economy and political life, is evolving in a similar direction. In many cases, however, limited access to literature sources, severe language barriers, and the lack of a strong pluridisciplinary tradition are hampering the adoption of state of the art techniques. Originally intended to allow scientists in East European countries to become acquainted with the key aspects of the bioavailability debate that is unfolding in the scientific literature in the West, and with its implications for bioremediation efforts, the present book presents a very complete coverage of the theoretical and practical aspects of the (limited) bioavailability of organic xenobiotics in the environment.
Book Synopsis Proceedings of the 16th World Congress of Soil Science on CD-ROM. by :
Download or read book Proceedings of the 16th World Congress of Soil Science on CD-ROM. written by and published by . This book was released on 1998 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: Full text and summaries of conference papers.
Download or read book Agronomie written by and published by . This book was released on 1988 with total page 1070 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agrochimica written by and published by . This book was released on 1998 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ICREEC 2019 written by Ahmed Belasri and published by Springer Nature. This book was released on 2020-06-10 with total page 659 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights peer reviewed articles from the 1st International Conference on Renewable Energy and Energy Conversion, ICREEC 2019, held at Oran in Algeria. It presents recent advances, brings together researchers and professionals in the area and presents a platform to exchange ideas and establish opportunities for a sustainable future. Topics covered in this proceedings, but not limited to, are photovoltaic systems, bioenergy, laser and plasma technology, fluid and flow for energy, software for energy and impact of energy on the environment.
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 Agromining: Farming for Metals by : Antony van der Ent
Download or read book Agromining: Farming for Metals written by Antony van der Ent and published by Springer Nature. This book was released on 2020-12-07 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second and expanded edition of the first book on agromining (phytomining) presents a comprehensive overview of the metal farming & recovery of the agromining production chain. Agromining is an emerging technology that aims to transform the extraction of sources of target elements not accessible by traditional mining and processing techniques. Agromining, which is based on sustainable development, uses hyperaccumulator plants as 'metal crops' farmed on sub-economic soils or minerals wastes to obtain valuable target elements. This volume is edited and authored by the pioneers in the rapidly expanding field of agromining and presents the latest insights and developments in the field. This book provides in-depth information on the global distribution and ecology of hyperaccumulator plants, their biogeochemical pathways, the influence of rhizosphere microbes, the physiology and molecular biology of hyperaccumulation, as well as aspects of propagation and conservation of these unusual plants. It describes the agronomy of metal crops and opportunities for incorporating agromining into rehabilitation and mine closure, including test cases for agromining of nickel, cobalt, manganese, arsenic, selenium, cadmium, zinc, thallium, rare earth elements and platinum group elements. Since the first edition was published, there have successful nickel agromining field trials in the tropics (in Malaysia and Guatemala), and these are presented in a dedicated case study chapter. Other new chapters focus on the processing of bio-ore for elements other than nickel, such as rare earth elements and cadmium, and on agromining from industrial wastes such as tailings, and industrial by-products and sites. Furthermore, the book features two new chapters that provide a comprehensive assessment of accumulation a very wide range elements from the Periodic Table in various plant species around the globe, and a chapter on practical methods for discovery of hyperaccumulator plant species in the field and in the herbarium. This book is of interest to environmental professionals in the minerals industry, government regulators, and academics.
Book Synopsis Cadmium in the Environment by : Mislin
Download or read book Cadmium in the Environment written by Mislin and published by Birkhäuser. This book was released on 2013-03-08 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Guidelines for Drinking-water Quality by : World Health Organization
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.
Book Synopsis Nuclear Techniques in Animal Production and Health by : International Atomic Energy Agency
Download or read book Nuclear Techniques in Animal Production and Health written by International Atomic Energy Agency and published by . This book was released on 1976 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil-plant animal relations regarding minerals; Trace elements in animal nutrition; Trace elements in animal nutrition; Calcium; Phosphorus and magnesium metabolism; Protein (nitrogen) metabolism - ruminants; Protein (nitrogen) metabolism - non-ruminants; Nuclear techniques in the control of parasitic infections; Animal endocrinology with special emphasis on radioimmunoassays.
Book Synopsis Open Space as an Air Resource Management Measure ...: Sink factors by :
Download or read book Open Space as an Air Resource Management Measure ...: Sink factors written by and published by . This book was released on 1976 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Faecal Sludge Management by : Linda Strande
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.
