TRANSFERTS RIVIERE NAPPE ET EFFET FILTRE DES BERGES APPLICATION AUX TRANSFERTS DE L'AZOTE 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 TRANSFERTS RIVIERE NAPPE ET EFFET FILTRE DES BERGES APPLICATION AUX TRANSFERTS DE L'AZOTE PDF full book. Access full book title TRANSFERTS RIVIERE NAPPE ET EFFET FILTRE DES BERGES APPLICATION AUX TRANSFERTS DE L'AZOTE by Claude Doussan. Download full books in PDF and EPUB format.
Author: Claude Doussan Publisher: ISBN: 9782900788240 Category : Runoff Languages : fr Pages : 210
Book Description
LE PROBLEME DE POLLUTIONS, A CARACTERE CHRONIQUE OU ACCIDENTEL, DES FLEUVES ET COURS D'EAU CONDUIT A PRECISER LEUR IMPACT SUR LES AQUIFERES REALIMENTES PAR CES COURS D'EAU. CE POINT DEVIENT CRUCIAL QUAND DES FORAGES AEP SONT IMPLANTES A PROXIMITE DES BERGES. LA PRESENTE ETUDE VISE A DEFINIR LE CONTEXTE HYDRODYNAMIQUE ET BIOGEOCHIMIQUE DES TRANSFERTS RIVIERE-NAPPE (FILTRATION PAR LES BERGES) DANS LE CAS D'UN SYSTEME FORTEMENT ANTHROPISE (CHAMP CAPTANT SITUE LE LONG DE LA SEINE, EN AVAL DE PARIS), EN ETUDIANT PLUS PARTICULIEREMENT, DANS CE CONTEXTE, L'EVOLUTION DES DIVERSES FORMES DE L'AZOTE. UNE PARCELLE EXPERIMENTALE A DONC ETE EQUIPEE D'UN RESEAU PIEZOMETRIQUE AFIN DE SUIVRE L'EVOLUTION CHIMIQUE DU FILTRAT DANS LES DIVERS HORIZONS DE L'AQUIFERE. SUR CE SITE D'ETUDE, L'HYDRODYNAMIQUE DU TRANSFERT RIVIERE-NAPPE, ET SES HETEROGENEITES, ONT ETE MIS A JOUR GRACE A DES MESURES DE TERRAIN ET UNE MODELISATION HYDROTHERMIQUE. D'AUTRE PART, AU NIVEAU GEOCHIMIQUE, LES EXPERIMENTATIONS DE TERRAIN ET DE LABORATOIRE MONTRENT QUE L'ESSENTIEL DE L'EVOLUTION DE LA COMPOSITION DE L'EAU LORS DU TRANSFERT S'EFFECTUE PENDANT LE PREMIER METRE DE PERCOLATION DANS LES SEDIMENTS DU LIT DU FLEUVE. CETTE EVOLUTION EST LARGEMENT TRIBUTAIRE DE L'ACTIVITE MINERALISATRICE BACTERIENNE, QUI APPARAIT INTENSE SUR CE SITE (DE LA RESPIRATION AEROBIE A LA METHANOGENESE) ET EN RELATION AVEC LES APPORTS IMPORTANTS EN MATIERE ORGANIQUE D'ORIGINE ANTHROPIQUE. L'AQUIFERE, POUR SA PART, JOUE UN ROLE TAMPON VIS-A-VIS DE CES VARIATIONS PHYSICO-CHIMIQUES QUI EST A RELIER A DES PROCESSUS DE PRECIPITATION/DISSOLUTION, D'ADSORPTION OU DE DILUTION. L'ENSEMBLE DE CES MECANISMES CONCOURT A L'ETABLISSEMENT DE CONDITIONS SEVEREMENT REDUCTRICES, PERMANENTES, DANS L'AQUIFERE. L'EVOLUTION DE L'AZOTE EST ICI MARQUEE PAR UNE DENITRIFICATION TOTALE DE L'EAU DU FLEUVE S'INFILTRANT DANS LES SEDIMENTS TANDIS QUE L'AMMONIUM S'ACCUMULE DANS CES DERNIERS ET POSE LE PROBLEME DE SON TRANSFERT VERS LES CAPTAGES. UN MODELE CONCEPTUEL, DEBOUCHANT SUR UN MODELE NUMERIQUE, DE LA FILTRATION PAR LES BERGES COUPLANT LE TRANSPORT CONVECTO-DISPERSIF ET LA MINERALISATION BACTERIENNE DE LA MATIERE ORGANIQUE, PERMET DE RENDRE COMPTE DES PRINCIPAUX PROCESSUS RENCONTRES, D'ANALYSER LES FACTEURS IMPORTANTS DU TRANSFERT, ET DE TIRER QUELQUES CONCLUSIONS SUR L'EXPLOITATION AEP DU COMPLEXE ALLUVIAL RIVIERE-NAPPE
Author: Claude Doussan Publisher: ISBN: 9782900788240 Category : Runoff Languages : fr Pages : 210
Book Description
LE PROBLEME DE POLLUTIONS, A CARACTERE CHRONIQUE OU ACCIDENTEL, DES FLEUVES ET COURS D'EAU CONDUIT A PRECISER LEUR IMPACT SUR LES AQUIFERES REALIMENTES PAR CES COURS D'EAU. CE POINT DEVIENT CRUCIAL QUAND DES FORAGES AEP SONT IMPLANTES A PROXIMITE DES BERGES. LA PRESENTE ETUDE VISE A DEFINIR LE CONTEXTE HYDRODYNAMIQUE ET BIOGEOCHIMIQUE DES TRANSFERTS RIVIERE-NAPPE (FILTRATION PAR LES BERGES) DANS LE CAS D'UN SYSTEME FORTEMENT ANTHROPISE (CHAMP CAPTANT SITUE LE LONG DE LA SEINE, EN AVAL DE PARIS), EN ETUDIANT PLUS PARTICULIEREMENT, DANS CE CONTEXTE, L'EVOLUTION DES DIVERSES FORMES DE L'AZOTE. UNE PARCELLE EXPERIMENTALE A DONC ETE EQUIPEE D'UN RESEAU PIEZOMETRIQUE AFIN DE SUIVRE L'EVOLUTION CHIMIQUE DU FILTRAT DANS LES DIVERS HORIZONS DE L'AQUIFERE. SUR CE SITE D'ETUDE, L'HYDRODYNAMIQUE DU TRANSFERT RIVIERE-NAPPE, ET SES HETEROGENEITES, ONT ETE MIS A JOUR GRACE A DES MESURES DE TERRAIN ET UNE MODELISATION HYDROTHERMIQUE. D'AUTRE PART, AU NIVEAU GEOCHIMIQUE, LES EXPERIMENTATIONS DE TERRAIN ET DE LABORATOIRE MONTRENT QUE L'ESSENTIEL DE L'EVOLUTION DE LA COMPOSITION DE L'EAU LORS DU TRANSFERT S'EFFECTUE PENDANT LE PREMIER METRE DE PERCOLATION DANS LES SEDIMENTS DU LIT DU FLEUVE. CETTE EVOLUTION EST LARGEMENT TRIBUTAIRE DE L'ACTIVITE MINERALISATRICE BACTERIENNE, QUI APPARAIT INTENSE SUR CE SITE (DE LA RESPIRATION AEROBIE A LA METHANOGENESE) ET EN RELATION AVEC LES APPORTS IMPORTANTS EN MATIERE ORGANIQUE D'ORIGINE ANTHROPIQUE. L'AQUIFERE, POUR SA PART, JOUE UN ROLE TAMPON VIS-A-VIS DE CES VARIATIONS PHYSICO-CHIMIQUES QUI EST A RELIER A DES PROCESSUS DE PRECIPITATION/DISSOLUTION, D'ADSORPTION OU DE DILUTION. L'ENSEMBLE DE CES MECANISMES CONCOURT A L'ETABLISSEMENT DE CONDITIONS SEVEREMENT REDUCTRICES, PERMANENTES, DANS L'AQUIFERE. L'EVOLUTION DE L'AZOTE EST ICI MARQUEE PAR UNE DENITRIFICATION TOTALE DE L'EAU DU FLEUVE S'INFILTRANT DANS LES SEDIMENTS TANDIS QUE L'AMMONIUM S'ACCUMULE DANS CES DERNIERS ET POSE LE PROBLEME DE SON TRANSFERT VERS LES CAPTAGES. UN MODELE CONCEPTUEL, DEBOUCHANT SUR UN MODELE NUMERIQUE, DE LA FILTRATION PAR LES BERGES COUPLANT LE TRANSPORT CONVECTO-DISPERSIF ET LA MINERALISATION BACTERIENNE DE LA MATIERE ORGANIQUE, PERMET DE RENDRE COMPTE DES PRINCIPAUX PROCESSUS RENCONTRES, D'ANALYSER LES FACTEURS IMPORTANTS DU TRANSFERT, ET DE TIRER QUELQUES CONCLUSIONS SUR L'EXPLOITATION AEP DU COMPLEXE ALLUVIAL RIVIERE-NAPPE
Author: Michel Detay Publisher: ISBN: Category : Water-supply Languages : en Pages : 412
Book Description
Brings together material essential for the understanding and application of techniques used in relation to water wells. Emphasizes field-based trials & effective implementation, presents basic concepts of hydrogeology and explains the fundamentals of subsurface hydraulics. Also covers the main exploration methods used in hydrogeology, the criteria for developing groundwater resources & the main principles of water chemistry, while giving a detailed description of the various drilling techniques & each stage in the design and construction of wdater wells. Describes database management tools for monitoring and storing information.
Author: Linda Strande Publisher: IWA Publishing ISBN: 1780404735 Category : Technology & Engineering Languages : en Pages : 428
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: Ervin Taylor Publisher: Springer Science & Business Media ISBN: 1475742495 Category : Science Languages : en Pages : 611
Book Description
Radiocarbon After Four Decades: An Interdisciplinary Perspective commemorates the 40th anniversary of radiocarbon dating. The volume presents discussions of every aspect of this dating technique, as well as chronicles of its development and views of future advancements and applications. All of the 64 authors played major roles in establishment, development or application of this revolutionary scientific tool. The 35 chapters provide a solid foundation in the essential topics of radiocarbon dating: Historical Perspectives; The Natural Carbon Cycle; Instrumentation and Sample Preparation; Hydrology; Old World Archaeology; New World Archaeology; Earth Sciences; and Biomedical Applications.
Author: David M. Robbins Publisher: IWA Publishing ISBN: 178040476X Category : Science Languages : en Pages : 148
Book Description
This is a practical handbook providing a step-by-step approach to the techniques used for characterizing wastewater sources and investigating sites where collection, treatment and reuse/disposal technologies will be installed. It is intended to help enable local implementation of on-site and decentralized wastewater management system (DWMS)for wide scale use in development settings. How to Design Wastewater Systems for Local Conditions in Developing Countries helps local service providers and regulatory officials make informed decisions through the use of tools, checklists and case studies. It includes a link to a web based community of on-site and decentralized wastewater professionals, which contains related tools and case studies. This handbook serves as a reference for training classes, certification programs, and higher education programs in civil and sanitary engineering. There is an increasing interest on the part of local government officials and private sector service providers to implement wastewater treatment systems to solve sanitation problems. The model presented in this handbook promotes activities that first generate data related to source and site conditions that represent critical inputs, and then applies this information to the technology selection process. Matching the most appropriate technologies to the specific needs of the wastewater project is the key that leads to long term sustainability. How to Design Wastewater Systems for Local Conditions in Developing Countries is an invaluable resource for public sector decision makers and private sector service providers in developing countries. It is also a useful text for students at engineering colleges in developing countries interested in taking a class that teaches the methods of decentralized wastewater management system (DWMS) development.
Author: Claude Doussan
Author: Claude Doussan
Author: 
Author: Michel Detay
Author: 
Author: Linda Strande
Author: 
Author: Ervin Taylor
Author: Rabindra Nath Pati
Author: David M. Robbins
Author: Elizabeth Tilley