Download or read book D sinfection des eaux us es par irradiation aux ultraviolets et par lagunage written by Société québécoise d'assainissement des eaux and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book EPURATION DES EAUX RESIDUAIRES URBAINES PAR LAGUNAGE AERE ET DESINFECTION PAR RAYONNEMENT ULTRAVIOLETS written by MOHAMED.. ALLANI and published by . This book was released on 1993 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: CETTE THESE COMPREND DEUX PARTIES: LA PREMIERE EST RESERVEE AU PROCEDE D'EPURATION PAR LAGUNAGE AERE, LA SECONDE EST CONSACREE A LA TECHNIQUE DE DESINFECTION DES EAUX EPUREES PAR LES RAYONNEMENTS ULTRAVIOLETS. L'ETUDE DE LA LAGUNE AEREE FACULTATIVE DE LA VILLE SFAX EN TUNISIE (300000 EQUIVALENTS-HABITANTS) NOUS A PERMIS, D'ABORD, DE DECELER LES CAUSES INHERENTES A SON DYSFONCTIONNEMENT, ENSUITE D'APPORTER DES PROPOSITIONS ET DE FORMULER DES RECOMMANDATIONS POUR AMELIORER SON FONCTIONNEMENT. IL NOUS A APPARU EVIDENT QUE LES PERFORMANCES DU LAGUNAGE AERE SONT ETROITEMENT LIEES AUX CONDITIONS DU MILIEU. LA REUTILISATION DES EAUX USEES EXIGE PARFOIS UN TRAITEMENT COMPLEMENTAIRE DE DESINFECTION. LE TRAITEMENT AUX UV GERMICIDES SE REVELE SATISFAISANT POUR DES EAUX EPUREES DE BONNE QUALITE. LA MESURE DE LA TRANSMITTANCE PARAIT TRES SATISFAISANTE DANS LA MESURE OU ELLE EST FACILE ET CONDITIONNE LA DOSE DE RAYONNEMENT
Download or read book Technologie de la d sinfection par rayonnement ultraviolet appliqu e aux usines de traitement des eaux us es municipales au Canada rapport final written by Canada. Environnement Canada and published by . This book was released on 2003 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Performance d un biofiltre pour le traitement des eaux us es written by Asma Ben Rajeb and published by . This book was released on 2017-03-10 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Epuration des eaux r siduaires urbaines par lagunage a r et d sinfection par rayonnements ultraviolets written by and published by . This book was released on 1993 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation du proc d UV H2O2 pour la d sinfection et l limination des micropolluants en vue d une r utilisation des eaux us es trait es en petites stations d puration written by Bruno Cédat and published by . This book was released on 2016 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dans un contexte de raréfaction de la ressource en eau, le traitement des eaux usées peut permettre de constituer des réserves d'eau durables et valorisables pour des usages variés tels que l'irrigation des cultures, la recharge de nappe phréatique ou encore une utilisation directe par les industries grandes consommatrices d'eau (cimenterie, aciéries...). Ainsi, la nécessité d'améliorer le traitement des eaux usées en sortie de STEU devient primordial afin d'assurer une qualité chimique et microbiologique de l'eau compatible avec sa réutilisation. Le traitement des micropolluants constitue notamment un nouveau défi pour les STEU. Si des projets de recyclage des eaux usées émergent pour les grandes STEU, le potentiel des petites ou moyennes STEU, qui constituent près de 90% des installations en France, reste inexploité à l'heure actuelle. Pour y remédier, les procédés d'oxydation avancée, notamment ceux basés sur l'UV, se présentent comme des solutions de traitement prometteuses. L'objectif de cette étude est de démontrer que la technologie UV/H2O2 est efficace et économiquement réaliste pour la désinfection et l'élimination des micropolluants organiques dans ces petites et moyennes STEU. Dans une première phase, un pilote de laboratoire UV/H2O2 a été évalué en conditions réelles (débit, matrice) sur des modèles bactériens et sur des micropolluants estrogéniques (E1, E2 et EE2) dans les eaux usées traitées d'une STEU. L'efficacité du traitement est comparée à celle de la photolyse seule. Il a été montré que le traitement UV/H2O2 permet une amélioration de la désinfection en assurant une destruction des bactéries contrairement à la photolyse seule qui ne fait qu'inactiver les micro-organismes. D'autre part, les doses UV (plus petit 600 mJ/cm2) et les concentrations en H2O2 étudiées (30-50 mg/L d'H2O2) permettent d'abattre plus de 80% de l'ensemble des micropolluants ciblés et de l'activité biologique (estrogénicité) associée, sans former de sous-produits estrogéniques ou toxiques au regard des tests d'activité employés dans l'étude (YES et Vibrio Fisheri). Parallèlement, il a été montré que le procédé UV/H2O2 est également efficace pour éliminer plus de 70% des produits pharmaceutiques (diclofénac, ibuprofène et naproxène) à 1000 mJ/cm2. Sur la base des paramètres de traitement établis en pilote de laboratoire, un prototype a été dimensionné pour la STEU de Vercia (filtre planté de roseaux, 1100 EH, Jura). Les conditions de traitement mises en œuvre (dose UV plus pertit 1000 mJ/cm2, [H2O2] = 15 mg/L) ont permis d'obtenir une eau de très haute qualité bactériologique et des abattements des micropolluants suivis supérieurs à 90%. Cette expérimentation à échelle réelle a permis d'estimer le coût global de cette technologie à environ 0,28 €/m3. L'ensemble de ce travail de recherche conclue à l'efficacité et au fort potentiel de la technologie UV/H2O2 pour le recyclage des eaux usées traitées des petites et moyennes STEU.
Download or read book Epuration d eaux us es urbaines par lagunage written by J. C.. Block and published by . This book was released on 1981 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book How to Design Wastewater Systems for Local Conditions in Developing Countries written by David M. Robbins and published by IWA Publishing. This book was released on 2014-03-15 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Agrindex written by and published by . This book was released on 1990 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wastewater Disinfection written by and published by . This book was released on 1996 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Infections of the Gastrointestinal Tract written by Martin J. Blaser and published by Raven Press (ID). This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Health Effects Criteria for Marine Recreational Waters written by Victor J. Cabelli and published by . This book was released on 1983 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microbial Community Analysis written by Thomas E. Cloete and published by IWA Publishing. This book was released on 1997-01-01 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microbial Community Analysis surveys the vast amount of theoretical and practical knowledge on the design of biological treatment systems. It describes the different types of biological wastewater systems, the role of microbial diversity in these systems, and how this affects design and operation, methods for studying microbial community dynamics, and mathematical modelling of these systems. Contents Biological methods for the treatment of wastewaters Biodiversity and microbial interactions in the biodegradation of organic compounds Microbial population dynamics in biological wastewater treatment plants Molecular techniques for determining microbial community structures in activated sludge Principles in the modelling of biological wastewater treatment plants Practical considerations for the design of biological wastewater treatment systems Scientific and Technical Report No.5
Download or read book Groundwater Pollution Microbiology written by Gabriel Bitton and published by Wiley-Interscience. This book was released on 1984-03 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: Good,No Highlights,No Markup,all pages are intact, Slight Shelfwear,may have the corners slightly dented, may have slight color changes/slightly damaged spine.
Download or read book TOXICITY TESTING USING MICROORGANISMS written by Bitton and published by Springer. This book was released on 1986-07-31 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vol. 2: editors, Bernard J. Dutka, Gabriel Bitton.
Download or read book Phage Ecology written by Sagar M. Goyal and published by Wiley-Interscience. This book was released on 1987-11-13 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the first to explore the distribution, fate, and ecology of phage in the environment and point up the important applications of this information. The text begins with an historical overview, followed by a discussion of the current state of phage taxonomy. Next is covered the distribution patterns and fate of phage in diverse environments, e.g. soil, fresh water, marine water, and water and wastewater treatment plants. Factors that can influence the numbers and activity of phage populations, e.g. host and phage density, association of a phage with solids, presence of organic matter, temperature, pH, ultraviolet and visible light, concentration and types of ions present, and the metabolic activities of bacteria other than the phage host are examined. One chapter is devoted to the occurrence and implications of phage in various industries, e.g. dairy, wine, sausage, and antibiotic industries.
