CONTRIBUTION A L'ETUDE DE LA POLLUTION DES CHAMPIGNONS PAR DES METAUX LOURDS PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download CONTRIBUTION A L'ETUDE DE LA POLLUTION DES CHAMPIGNONS PAR DES METAUX LOURDS PDF full book. Access full book title CONTRIBUTION A L'ETUDE DE LA POLLUTION DES CHAMPIGNONS PAR DES METAUX LOURDS by MYRIAM.. KETTANI. Download full books in PDF and EPUB format.
Author: MYRIAM.. KETTANI
Publisher:
ISBN:
Category :
Languages : fr
Pages :
Get Book Here
Book Description
Author: MYRIAM.. KETTANI
Publisher:
ISBN:
Category :
Languages : fr
Pages :
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : de
Pages : 7
Get Book Here
Book Description
Author: Philippe Mestrallet
Publisher:
ISBN:
Category :
Languages : fr
Pages : 0
Get Book Here
Book Description
Cette recherche nous a permis d'affirmer que les champignons sont réellement des accumulateurs de métaux lourds. Les groupements acides des parois fongiques fixent les métaux notamment le plomb. Ils sont soumis à des processus de transformation et de complexation : la méthylation du mercure donne le méthylmercure qui peut se retrouver en quantité dangereuse dans certains champignons exposés, le cadmium est séquestré par des cadystines et le plomb serait emmagasiné dans des granules de polyphosphate. Les Agaricacées sont de forts accumulateurs. Il en est de même des Marasmiacées en ce qui concerne le mercure, du genre Amanita en ce qui concerne le cadmium, des Gastéromycètes pour le plomb. Plusieurs espèces également sont à retenir : - Boletus edulis qui ressort de l'étude en tant qu'accumulateur de mercure et de cadmium ; - Coprinus comatus qui retient fortement le mercure ; - Parmi les Agaricacées, Agaricus campestris pour les trois métaux, Agaricus silvicola, macrocarpus, augustus et abruptibulbus pour le cadmium. La plupart de ces espèces étant comestibles, il est important, si les champignons sont cueillis sur des lieux exposés à la pollution (alentours d'usines métallurgiques, zones urbaines fortement polluées, sols particulièrement riche en mercure, plomb et cadmium), de sensibiliser les consommateurs concernés. Il serait intéressant d'étudier également les autres métaux lourds existant (cuivre, nickel, chrome, zinc) et leur affinité avec les champignons bien que leur toxicité soit moins importante que les trois faisant l'objet de cette thèse.
Author: Marcelo L. Larramendy
Publisher: BoD – Books on Demand
ISBN: 1838807535
Category : Technology & Engineering
Languages : en
Pages : 300
Get Book Here
Book Description
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.
Author:
Publisher:
ISBN: 9789241530613
Category : Cyanides
Languages : en
Pages : 67
Get Book Here
Book Description
Author: Linda Strande
Publisher: IWA Publishing
ISBN: 1780404735
Category : Technology & Engineering
Languages : en
Pages : 428
Get Book Here
Book Description
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: Osvaldo Jaeggli
Publisher: ISSN
ISBN: 9783112420218
Category : Language Arts & Disciplines
Languages : en
Pages : 0
Get Book Here
Book Description
The architecture of the human language faculty has been one of the main foci of the linguistic research of the last half century. This branch of linguistics, broadly known as Generative Grammar, is concerned with the formulation of explanatory formal accounts of linguistic phenomena with the ulterior goal of gaining insight into the properties of the 'language organ'. The series comprises high quality monographs and collected volumes that address such issues. The topics in this series range from phonology to semantics, from syntax to information structure, from mathematical linguistics to studies of the lexicon. To discuss your book idea or submit a proposal, please contact Birgit Sievert
Author: Silvio Gianiazzi
Publisher: Birkhäuser
ISBN: 3034885040
Category : Science
Languages : en
Pages : 230
Get Book Here
Book Description
This book, prepared by participants of the European network COST ACTION 810 (1989-93) is the outcome of a meeting held in Switzerland (Einsiedeln, September 29 to October 2, 1993) on the "Impact of arbuscular mycorrhizas on sustainable agriculture and natural ecosystems". COST(Cooperation Scientifique et Technique) Networks were created in 1971 by the Commission of European Communities, and later enlarged to include non-European Member States, to promote pre-competitive scientific and technical research in fields of common interest. During the eighties, COST ACTIONS were launched in bio technological fields, including the network on arbuscular mycorrhizas. Arbuscular mycorrhizas are a universally found symbiosis between plants and certain soil fungi and essential components of soil-plant systems. They act as a major inter face by influencing or regulating resource allocation between abiotic and biotic components of the soil-plant system. Arbuscular mycorrhizas are involved in many key ecosystem processes including nutrient cycling and conservation of soil struc ture, and have been shown to improve plant health through increased protection against abiotic and biotic stresses. Sustainability can be defined as the successful management of resources to satisfy changing human needs while maintaining or enhancing the quality of the environ ment and conserving resources. Increasing environmental degradation and instability, due to anthropogenic activities and in particular the increasing fragility of the soil resource, has led to an increased awareness of the need to develop practices resulting in more sustainable natural and agroecosystems.
Author:
Publisher:
ISBN:
Category : Environmental health
Languages : en
Pages : 24
Get Book Here
Book Description
Author: Stuart Hill
Publisher: Birkhäuser
ISBN: 3034863101
Category : Science
Languages : en
Pages : 364
Get Book Here
Book Description
