Développement d'une nouvelle approche d'enlèvement de l'azote ammoniacal des eaux usées domestiques PDF Download

Author: David Petit
Publisher:
ISBN: 9780494844908
Category :
Languages : fr
Pages : 97

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Author: École polytechnique (Montréal, Québec). Département de génie civil
Publisher:
ISBN:
Category :
Languages : fr
Pages : 205

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Author: Canada. Environnement Canada
Publisher:
ISBN: 9780662884101
Category : Ammonia
Languages : fr
Pages : 281

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Author: THIBAUD.. ROUSSELLE
Publisher:
ISBN:
Category :
Languages : fr
Pages :

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L'ASSAINISSEMENT AUTONOME EST UN MODE CONNU DE TRAITEMENT ET D'ELIMINATION DES EAUX USEES DOMESTIQUES, MAIS SES DISPOSITIFS D'EPURATION PAR LE SOL SONT ENCORE ACTUELLEMENT TRES ETUDIES. DANS UN SOL, LA QUASI-TOTALITE DE L'AZOTE AMMONIACAL CONTENU DANS LES EFFLUENTS SEPTIQUES, SE TRANSFORME EN AZOTE NITRIQUE. EN ABSENCE D'OXYGENE ET EN PRESENCE DE MATIERE CARBONEE OXYDABLE, LA NITRIFICATION PEUT ETRE SUIVIE D'UNE DENITRIFICATION. L'ETUDE DES PHENOMENES DE NITRIFICATION ET DE DENITRIFICATION FAIT L'OBJET DE CETTE RECHERCHE. DEUX INSTALLATIONS PILOTE ET UNE PLATE-FORME D'ASSAINISSEMENT, ALIMENTEES SOIT PAR UN EFFLUENT SYNTHETIQUE, SOIT PAR UN EFFLUENT REEL, SONT MISES EN UVRE. CERTAINS PARAMETRES, INFLUENCANT LES MECANISMES CITES PRECEDEMMENT, SONT ETUDIES: CHOIX D'UN SOL DE SUBSTITUTION, CHARGE HYDRAULIQUE, UTILISATION D'UN SUBSTRAT CARBONE EXTERIEUR AU DISPOSITIF OU DU CARBONE PRESENT DANS L'EFFLUENT PAR L'INTERMEDIAIRE D'UN RECYCLAGE. APRES UNE SYNTHESE BIBLIOGRAPHIQUE, LA METHODOLOGIE UTILISEE DANS CETTE RECHERCHE EST DECRITE. DES METHODES, BASEES SUR LE PRINCIPE DE L'ABSORPTIOMETRIE ULTRAVIOLETTE, NOUS PERMETTENT D'ESTIMER DES PARAMETRES (NITRATES...). LES DONNEES BRUTES SONT TOUT D'ABORD PRESENTEES, PUIS DES RELATIONS ENTRE CERTAINS PARAMETRES SONT PROPOSES. LA COMPARAISON DES VALEURS OBTENUES POUR CHAQUE INSTALLATION MET EN EVIDENCE L'INTERET D'UTILISER, PAR RECYCLAGE, LA MATIERE CARBONEE PRESENTE DANS L'EFFLUENT INITIAL POUR LA DENITRIFICATION. ENFIN, LES PERSPECTIVES PERMETTENT D'ABOUTIR A UNE PROPOSITION D'UN DISPOSITIF COMPLET D'ETUDE DE LA TRAITABILITE AZOTEE D'UN EFFLUENT

Author: Linda Strande
Publisher: IWA Publishing
ISBN: 1780404735
Category : Technology & Engineering
Languages : en
Pages : 428

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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: Stuart Hill
Publisher: Birkhäuser
ISBN: 3034863101
Category : Science
Languages : en
Pages : 364

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Author: Austin M 1876-1956 Patterson
Publisher: Scholar Select
ISBN: 9781296567972
Category :
Languages : en
Pages : 340

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This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Author: David M. Robbins
Publisher: IWA Publishing
ISBN: 178040476X
Category : Science
Languages : en
Pages : 148

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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: Elizabeth Tilley
Publisher:
ISBN: 9783906484570
Category :
Languages : en
Pages : 176

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Author: Kenneth Carpenter
Publisher: Indiana University Press
ISBN: 9780253345394
Category : Nature
Languages : en
Pages : 402

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The meat-eating dinosaurs, or Theropoda, include some of the fiercest predators that ever lived. Some of the group's members survive to this day—as birds. The theropod/bird connection has been explored in several recent works, but this book presents 17 papers on a variety of other topics. It is organized into three parts. Part I explores morphological details that are important for understanding theropod systematics. Part II focuses on specific regions of theropod anatomy and biomechanics. Part III examines various lines of evidence that reveal something about theropods as living creatures. The contributors are Ronan Allain, Rinchen Barsbold, Kenneth Carpenter, Karen Cloward, Rodolfo A. Coria, Philip J. Currie, Peter M. Galton, Robert Gay, Donald M. Henderson, Dong Huang, James I. Kirkland, Yoshitsugu Kobayashi, Eva B. Koppelhus, Peter Larson, Junchang Lü, Lorrie A. McWhinney, Clifford Miles, Ralph E. Molnar, N. Murphy, John H. Ostrom, Gregory S. Paul, Licheng Qiu,J. Keith Rigby, Jr., Bruce Rothschild, Christopher B. Ruff, Leonardo Salgado, Frank Sanders, Julia T. Sankey, Judith A. Schiebout, David K. Smith, Barbara R. Standhardt, Kathy Stokosa, Darren H. Tanke, François Therrien, David Trexler, Kelly Wicks, Douglas G. Wolfe, and Lowell Wood.