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Book Description
CREEE EN 1993 POUR REPONDRE AUX BESOINS SOUVENT URGENTS DE L'ASSAINISSEMENT NICOIS, L'UNITE DE CONTROLE HALIOTIS, CELLULE DE MESURES RAPIDES INFORMATISEE, A PERMIS DE DECRIRE LA NATURE DES EAUX USEES AU GRE DE LEUR PARCOURS ORIENTE PAR LE CONTEXTE STRUCTURAL DU SITE, DE LEUR ORIGINE A LEUR REJET DANS LE MILIEU NATUREL EN PASSANT PAR LEUR TRAITEMENT PHYSICO-BIOLOGIQUE. LA CARACTERISATION DES ECOULEMENTS DE SURFACE URBAIN DEBOUCHENT, SOIT SUR DES TRAITEMENTS CURATIFS DE REDUCTION DES POLLUTIONS, DURABLES (RIVOLI) OU PONCTUELS (LANTERNE), SOIT SUR UNE CONNAISSANCE ACCRUE DU REGIME DE POLLUTION ET DES SES APPORTS (PAILLON). LE TRACAGE DE L'INFLUENT/EFFLUENT ET DES EAUX PLUVIALES, REPOSE SUR LE SUIVI, PAR LA MISE EN OEUVRE AU SEIN D'UNE MEME STRUCTURE DE METHODES D'ANALYSES MINIATURISEES ET FIABILISEES DE PARAMETRES AUSSI DIVERS QUE METAUX LOURDS, NUTRIMENTS (P ET N), SELS (CHLORURES), TEMPERATURE, PH, ELEMENTS TOXIQUES, MES (MAIERES EN SUSPENSION), DCO (DEMANDE CHIMIQUE EN OXYGENE), DBO#5 (DEMANDE BIOLOGIQUE EN OXYGENE) ET BACTERIOLOGIE. LE CONTROLE DES REJETS DANS LE RESEAU EST APPELE A S'INTENSIFIER EN CAS DE DETECTION D'UN ELEMENT EN CONCENTRATION ANORMALE A L'ENTREE DE LA STATION D'EPURATION. LA DEMARCHE QUALITATIVE SE DOIT D'ETRE GLOBALE PAR L'ANALYSE SYSTEMATIQUE DES MEMES PARAMETRES SUR LE SITE EPURATEUR POUR VERIFIER LE NIVEAU DE LA SEPARATION DES PHASES SOLIDES ET LIQUIDES ET ETABLIR DES RENDEMENTS, D'AUTANT QUE L'AVENIR S'AFFICHE DANS L'ETUDE DE L'IMPACT DES EAUX TRAITEES REJETEES EN MER. A NICE, LES A-COUPS DE CHARGE, DUS AUX CHLORURES (FRAGILISATION DE LA BIOMASSE) OU AU DEBIT PAR TEMPS DE PLUIE (VARIATION DE CHARGE MASSIQUE), PEUVENT CONTRIBUER A ENTRETENIR LE PROBLEME FILAMENTEUX (NOCARDIA OU SPHAEROTILUS NATANS 1863) ET OCCASIONNER DES TROUBLES DE L'EPURATION. ENFIN, INDICE DES BOUES ADAPTE, MICROBIOLOGIE DES AERATEURS (COLORIMETRIE, COMPTAGE ET IDENTIFICATION DES ESPECES) SONT DES MOYENS INDISPENSABLES A L'ETABLISSEMENT D'UN DIAGNOSTIC.
Book Description
CREEE EN 1993 POUR REPONDRE AUX BESOINS SOUVENT URGENTS DE L'ASSAINISSEMENT NICOIS, L'UNITE DE CONTROLE HALIOTIS, CELLULE DE MESURES RAPIDES INFORMATISEE, A PERMIS DE DECRIRE LA NATURE DES EAUX USEES AU GRE DE LEUR PARCOURS ORIENTE PAR LE CONTEXTE STRUCTURAL DU SITE, DE LEUR ORIGINE A LEUR REJET DANS LE MILIEU NATUREL EN PASSANT PAR LEUR TRAITEMENT PHYSICO-BIOLOGIQUE. LA CARACTERISATION DES ECOULEMENTS DE SURFACE URBAIN DEBOUCHENT, SOIT SUR DES TRAITEMENTS CURATIFS DE REDUCTION DES POLLUTIONS, DURABLES (RIVOLI) OU PONCTUELS (LANTERNE), SOIT SUR UNE CONNAISSANCE ACCRUE DU REGIME DE POLLUTION ET DES SES APPORTS (PAILLON). LE TRACAGE DE L'INFLUENT/EFFLUENT ET DES EAUX PLUVIALES, REPOSE SUR LE SUIVI, PAR LA MISE EN OEUVRE AU SEIN D'UNE MEME STRUCTURE DE METHODES D'ANALYSES MINIATURISEES ET FIABILISEES DE PARAMETRES AUSSI DIVERS QUE METAUX LOURDS, NUTRIMENTS (P ET N), SELS (CHLORURES), TEMPERATURE, PH, ELEMENTS TOXIQUES, MES (MAIERES EN SUSPENSION), DCO (DEMANDE CHIMIQUE EN OXYGENE), DBO#5 (DEMANDE BIOLOGIQUE EN OXYGENE) ET BACTERIOLOGIE. LE CONTROLE DES REJETS DANS LE RESEAU EST APPELE A S'INTENSIFIER EN CAS DE DETECTION D'UN ELEMENT EN CONCENTRATION ANORMALE A L'ENTREE DE LA STATION D'EPURATION. LA DEMARCHE QUALITATIVE SE DOIT D'ETRE GLOBALE PAR L'ANALYSE SYSTEMATIQUE DES MEMES PARAMETRES SUR LE SITE EPURATEUR POUR VERIFIER LE NIVEAU DE LA SEPARATION DES PHASES SOLIDES ET LIQUIDES ET ETABLIR DES RENDEMENTS, D'AUTANT QUE L'AVENIR S'AFFICHE DANS L'ETUDE DE L'IMPACT DES EAUX TRAITEES REJETEES EN MER. A NICE, LES A-COUPS DE CHARGE, DUS AUX CHLORURES (FRAGILISATION DE LA BIOMASSE) OU AU DEBIT PAR TEMPS DE PLUIE (VARIATION DE CHARGE MASSIQUE), PEUVENT CONTRIBUER A ENTRETENIR LE PROBLEME FILAMENTEUX (NOCARDIA OU SPHAEROTILUS NATANS 1863) ET OCCASIONNER DES TROUBLES DE L'EPURATION. ENFIN, INDICE DES BOUES ADAPTE, MICROBIOLOGIE DES AERATEURS (COLORIMETRIE, COMPTAGE ET IDENTIFICATION DES ESPECES) SONT DES MOYENS INDISPENSABLES A L'ETABLISSEMENT D'UN DIAGNOSTIC.
Author: Jamil Houhou Publisher: ISBN: Category : Languages : en Pages : 506
Book Description
This work describes the sewer system as an integrated part of the wastewater treatment system. The main objectives of this study were: identification and quantification of water sources collected in sewer system, referring to isotopic signatures of water and dissolved sulfates; identification of the mineralogical nature of trace element carriers and determination of their geochemical evolution within the sewer by TEM and SEM coupled with EDSX ; Evidencing exchanges between sewage and biofilms, using CLSM and TEM, and investigating hydrodynamic conditions controlling this exchange in an experimental set-up (Couette-Poiseuille reactor). The results indicate that isotopic data may be used to study the tightness of sewer lines and to evaluate the evolution of element concentrations along sewer. Implication of the sewer system as a true biophysicochemical reactor is evidenced in our study by the evolution of the mineralogical nature of phosphate phases downstream of the sewer and by heavy metal precipitations in anaerobic conditions as neoformed sulfide phases. Sump pit deposits and biofilms represent the earlier stage of this neoformation. Organic matter biodegradation was revealed by TEM examination of SM whereas the exchange between biofilms and SM was shown by CLSM. Cellulose fibers from SM were found embedded in exopolymer biofilm matrices and detached fragments from biofilms were identified in sewage. The majority of these evolutions are located upstream of sewer system in which the contrast in physicochemical properties are the most significant. Finally, biofilm model investigations and image processing showed that hydrodynamic conditions are largely implicated in biofilm detachment.
Book Description
Les exigences de la législation sur l'eau et les déchets auront pour conséquence, une augmentation de la production de boues associée à des contraintes croissantes d'évacuation. Aussi, l'étude de procédés contribuant à une réduction de la production de boues tout en préservant la qualité de l'épuration de l'influent devient une priorité. Dans un premier temps, la production de boues d'un système biologique conventionnel a été étudiée. Un modèle mathématique a été appliqué afin de décrire et de quantifier par une étude de sensibilité du modèle, les paramètres déterminants de la production de boues tels que le rendement de conversion, le taux de décès et la fraction inerte. L'étude des différents traitements physico-chimiques a permis l'évaluation des potentialités spécifiques tant vis à vis de la réduction de la taille des particules, favorable à une augmentation de la biodégradabilité que, vis à vis d'une inactivation des cellules, synonyme d'une augmentation des besoins de maintenance et/ou du décès cellulaire et/ou de la lyse cellulaire. L'étude et l'identification de la synergie des processus physico-chimiques et biologiques de transformation de la matière organique et minérale est réalisée à partir d'essais en continu. L'analyse partielle des mécanismes d'action des traitements associés a été réalisée à partir des essais en discontinu et continu. Une réduction significative de la production de boues ne semble envisageable que, si le traitement associé induit une augmentation des besoins de maintenance des cellules, une augmentation de la biodégradabilité de la pollution accumulée dans le système lors du procédé d'épuration. Basée sur les performances des systèmes en terme de réduction de la production de boues et sur les mécanismes d'action, une première comparaison des technologies de traitements associés est réalisée. Le suivi de la qualité de et des boues produites permet de valider l'intégration de tels procédés dans la filière de traitement des eaux usées.
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: J. B. Ellis Publisher: IWA Publishing ISBN: 190022206X Category : Science Languages : en Pages : 528
Book Description
Urban Drainage: A Multilingual Glossary has been written by research engineers and scientists with substantial experience in the urban drainage field. It provides definitive descriptions of urban drainage terms in English, French, Japanese and German, giving guidance on their appropriate usage and context. The glossary also contains many diagrams, tables and technical discussions, and is a very practical tool to facilitate international technical communication in the urban drainage field. Containing well over 850 commonly-used terms in urban drainage, all expressed in a user-friendly manner, the book serves as a valuable resource for both practitioner and academic. Topics covered include: urban hydrology/hydraulics sewerage surface water runoff pollution (groundwater and surface) receiving waters ecology ecotoxicology best management practices urban water resource management Urban Drainage: A Multilingual Glossary represents an initiative of the joint IWA/IAHR Committee on Urban Drainage and has arisen out of the long-standing terminological and tautological difficulties of many terms in common usage within international urban drainage practice. It will be of great use and interest to scientists, engineers and ecologists, professionals and students working in urban hydrology/hydraulics, urban water resource management and regulation, urban planning and ecology.
Author: William J. Mitsch Publisher: John Wiley & Sons ISBN: 9780471332640 Category : Technology & Engineering Languages : en Pages : 428
Book Description
Completely updated to keep pace with current technology. * Provides a firm grounding the fundamentals, theory, and latest techniques. * Includes completely updated case studies.
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: Publisher: Allied Publishers ISBN: 9780821344620 Category : Juvenile Nonfiction Languages : en Pages : 168
Book Description
South Asia Rural Development Series. India's economic policies are aimed at increasing economic growth, improving market efficiency and competitiveness, and integrating the Indian economy with global markets. Much of the population and industrial growth is expected to occur in urban centers. Consequently, the demands on the Urban Water Supply and Sanitation sector (UWSS), will be great. Urban Water Supply and Sanitation states the UWSS sector needs urgent attention both to meet these new demands and to ensure that all city-dwellers have access to basic services at reasonable costs. This book outlines the way forward which includes a discussion on institutional reform and financial reform as well an action plan.
Author: DENIS.. BARRAYA
Author: DENIS.. BARRAYA
Author: Jamil Houhou
Author: Patricia Camacho
Author: Linda Strande
Author: J. B. Ellis
Author: 
Author: William J. Mitsch
Author: 
Author: David M. Robbins
Author: