Download or read book Variabilit de la Composition des Eaux R siduaires Urbaines written by Le Nang Dinh and published by Presses Academiques Francophones. This book was released on 2015-01-16 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: La variabilite de la pollution urbaine est liee a l'activite humaine qui est elle-meme tres variable (journaliere, hebdomadaire, annuelle, pluri-annuelle). Afin de developper un modele qui permet de predire ces differentes variabilites on se sert des etudes demographiques, de l'utilisation de l'espace a partir de donnees cadastrales et des photographies aeriennes, des campagnes de prelevements sur 24h etc. Les resultats de campagnes de prelevement sur trois type de sous-bassins (village semi-rural, zone residentielle, zone residentielle avec un grand hopital) en fonction de l'activite humaine (jour versus nuit, repas, lavage) sont discutes. Une meilleure anticipation de la variabilite de la pollution arrivant dans les installations de traitement des eaux residuaires permettrait d'ameliorer leur gestion et donc de leur performance. Les campagnes ont egalement permis une meilleure comprehension de la variabilite de certains micropolluants tels que les metaux lourds, les alcalins et alcalino-terreux."
Download or read book Relations entre la variabilit de la pollution urbaine et le contexte socio culturel du bassin de collecte written by Nang Dinh Le and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: La variabilité de la pollution urbaine est liée à l'activité humaine qui est elle-même très variable (journalière, hebdomadaire, annuelle, pluri-annuelle). Afin de développer un modèle qui permet de prédire ces différentes variabilités, nous avons analysé des études démographiques, de l'utilisation de l'espace à partir de données cadastrales et des photographies aériennes et réalisés, des campagnes de prélèvements sur 24h. L'exemple de la Communauté Urbaine du Grand Nancy sur l'utilisation de ces outils est illustré dans ce travail. Les résultats de campagnes de prélèvements sur trois type de sous-bassins (village semi-rural, zone résidentielle, zone résidentielle avec un grand hôpital) en fonction de l?activité humaine (jour versus nuit, repas, lavage) sont discutés. Une meilleure anticipation de la variabilité de la pollution arrivant dans les installations de traitement des eaux résiduaires permettrait d'améliorer leur gestion et donc de leur performance. Les campagnes ont également permis une meilleure compréhension de la variabilité de certains micropolluants tels que les métaux lourds. La pollution est moins variable dans une grande ville que dans une localité rurale, elle est liée aux apports des activités professionnelles sur les différents sites. La variabilité dépend de la nature du réseau de collecte, de style de vie, de la démographie du bassin de collecte (en termes de répartition spatiale et de classe d'âge, etc.), des zones étudiées. Les macro-polluants (C, N-NH4, P) et les micro-polluants métalliques (Na, K, Mg, Ca, Cu, Zn, Mn, Fe, Al) ont été caractérisés. Deux pics de pollution ont été observés : le premier pendant le matin vers 10h00 et le second pic en début de soirée vers 20h00. Pour les zones résidentielles le premier pic correspond à l'activité humaine du matin avant de quitter la maison pour travailler, le deuxième pic correspond aux activités à l'heure du retour à la maison après une journée de travail. On n'a pas trouvé un schéma propre aux zones mixtes (résidentielles avec des activités commerciales, industrielles et hospitalières). Les variations du débit et de la composition des eaux usées reproduisent très bien le cycle humain. Dans ce travail, on a tenu en compte les modifications démographiques, l'occupation du sol et le déplacement domicile-travail sur les sites étudiés.
Download or read book La mati re organique des eaux r siduaires urbaines caract risation et volution written by Sabine Vaillant and published by . This book was released on 2000 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'EFFICACITE DES DISPOSITIONS REGLEMENTAIRES EN MATIERE DE CONTROLE DE LA QUALITE DES REJETS POLLUANTS PASSE PAR L'AMELIORATION DU FONCTIONNEMENT DES OUVRAGES DE TRAITEMENT. L'UN DES VERROUS ACTUELS EST NOTAMMENT LE MANQUE DE CONNAISSANCES SUR LA REPARTITION GRANULOMETRIQUE DES POLLUANTS DANS LES FRACTIONS PARTICULAIRES ET COLLOIDALES DES EFFLUENTS. CETTE ETUDE CONTRIBUE AINSI AU DEVELOPPEMENT D'OUTILS PERMETTANT D'ACCEDER A UNE MEILLEURE REPRESENTATION DE LA MATIERE ORGANIQUE DANS LES EAUX RESIDUAIRES URBAINES. LE CARACTERE HETEROGENE ET COMPLEXE DE LA MATIERE ORGANIQUE DES EAUX RESIDUAIRES URBAINES NOUS A CONDUIT A DEFINIR UN PROTOCOLE DE CARACTERISATION DE CES EFFLUENTS. BASE SUR UN FRACTIONNEMENT GRANULOMETRIQUE COUPLE A LA SPECTROPHOTOMETRIE ULTRAVIOLETTE ET A LA MESURE DE PARAMETRES GLOBAUX DE POLLUTION, CE PROTOCOLE PERMET D'ACCEDER A DES INFORMATIONS AUSSI BIEN QUANTITATIVES QUE QUALITATIVES. DANS UN PREMIER TEMPS, LES RESULTATS OBTENUS LORS DE CE TRAVAIL ONT PERMIS, D'UN POINT DE VUE METHODOLOGIQUE, DE DEVELOPPER DE NOUVELLES PROCEDURES D'EXPLOITATION DES SPECTRES UV. EN PARTICULIER, UNE APPROCHE THEORIQUE EXHAUSTIVE, VALIDEE PAR DES EXPERIMENTATIONS DE LABORATOIRE, A PERMIS D'EXPLIQUER LA REVELATION DE POINTS ISOBESTIQUES PAR NORMALISATION. DANS UN SECOND TEMPS, L'APPLICATION DE CES DEVELOPPEMENTS METHODOLOGIQUES A LA CARACTERISATION DE DIFFERENTS TYPES D'EAU ET A L'ETUDE DE L'EVOLUTION D'EAUX RESIDUAIRES URBAINES A PERMIS DE PROPOSER UNE TYPOLOGIE DES DIFFERENTES FRACTIONS GRANULOMETRIQUES. L'ETUDE SPATIO-TEMPORELLE D'UNE EAU RESIDUAIRE URBAINES, EN FONCTION DE CONDITIONS METEOROLOGIQUES VARIABLES, A PERMIS DE REPRESENTER DIFFERENTS PHENOMENES D'EVOLUTION DE LA MATIERE ORGANIQUE.
Download or read book Canadian Journal of Fisheries and Aquatic Sciences written by and published by . This book was released on 1998 with total page 824 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aqua written by and published by . This book was released on 1982 with total page 904 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canadian Journal of Microbiology written by and published by . This book was released on 1990 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Irrigation Drainage and Flood Control written by K. K. Framji and published by . This book was released on 1984 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Faecal Sludge Management written by Linda Strande and published by IWA Publishing. This book was released on 2014-08-15 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Secondary Settling Tanks written by G. A. Ekama and published by International Water Assn. This book was released on 1997-01-01 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: The secondary settling tank (SST) plays a major ro
Download or read book ICREEC 2019 written by Ahmed Belasri and published by Springer Nature. This book was released on 2020-06-10 with total page 659 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights peer reviewed articles from the 1st International Conference on Renewable Energy and Energy Conversion, ICREEC 2019, held at Oran in Algeria. It presents recent advances, brings together researchers and professionals in the area and presents a platform to exchange ideas and establish opportunities for a sustainable future. Topics covered in this proceedings, but not limited to, are photovoltaic systems, bioenergy, laser and plasma technology, fluid and flow for energy, software for energy and impact of energy on the environment.
Download or read book Erasmus Contarini and the Religious Republic of Letters written by Constance M. Furey and published by Cambridge University Press. This book was released on 2006 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 2005 book examines how the religious search for meaning shaped contemporary assumptions about friendship, gender, reading and writing.
Download or read book Characterization Treatment and Use of Sewage Sludge written by P. L'Hermite and published by Springer. This book was released on 1981-05-31 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the Second European Symposium held in Vienna, Austria, 21-23 October, 1980
Download or read book Algal Biorefineries written by Rakesh Bajpai and published by Springer Science & Business Media. This book was released on 2013-10-01 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews efforts to produce chemicals and fuels from forest and plant products, agricultural residues and more. Algae can potentially capture solar energy and atmospheric CO2; the book details needed research and legislative initiatives.
Download or read book Water Heritage written by Willem Willems and published by . This book was released on 2017-01-15 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water is vital for life, and its availability has been a concern for mankind throughout the ages. Its presence has always been ascertained in a variety of ways and the development of human society everywhere is connected with various forms of water management. Man also needed to manage water to find protection from its dangers and the need for that is increasing. In the coming decades, the impact of climate change is expected to intensify floods and droughts, affect groundwater resources, raise sea levels, increase pollution and enhance the frequency and magnitude of disasters. Societies around the world are challenged to adapt to these threats to ensure water security, economic prosperity and environmental and cultural sustainability. This book deals with the heritage of water management and the use that was made of water, as well as the impact of water management on heritage. An example of the former may be an ancient irrigation system in the Filipines or in the Middle East that still functions today, while the latter may reflect the importance of maintaining groundwater levels for the preservation of organic remains on archaeological sites or of wooden piles underneath standing buildings. In either case the papers in this book reflect the dynamic nature of water, and hence the equally dynamic relation between water management and heritage. This publication follows up on a Heritage and Water conference in Amsterdam, the first of its kind. Its main purpose is to credibly present the importance and value of heritage and historical experience for water and sustainable development, and vice versa, present the importance of water management for the protection of heritage. It presents evolving insights and concepts about Water and about Heritage from a variety of disciplines, policy and public perspectives illustrated with cases studies and aims to connect decision makers with experts such as engineers, archaeologists, historians, geographers, ecologist and landscape architects
Download or read book Constructive Ergonomics written by Pierre Falzon and published by CRC Press. This book was released on 2014-09-26 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal for ergonomics has always been to adapt work, work environments, and machines to humans. But is this goal still sufficient? Does it satisfy the needs of the individual or of societies and organizations as they operate now? Constructive Ergonomics provides an answer to these questions. Rooted both in the academic world and in the world of p
Download or read book Mapping drought patterns and impacts a global perspective written by Nishadi Eriyagama and published by IWMI. This book was released on 2009 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study examines the global pattern and impacts of droughts through mapping several drought-related characteristics - either at a country level or at regular grid scales. It appears that arid and semi-arid areas also tend to have a higher probability of drought occurrence. It is illustrated that the African continent is lagging behind the rest of the world on many indicators related to drought-preparedness and that agricultural economies, overall, are much more vulnerable to adverse societal impacts of meteorological droughts. The study also examines the ability of various countries to satisfy their water needs during droughts using storage-related indices.
Download or read book A Bibliographical List of Plays in the French Language 1700 1789 written by Clarence Dietz Brenner and published by . This book was released on 1979 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt:
