Effets des antibiotiques sur le procédé d'épuration par boues activées

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ISBN 13 :
Total Pages : 314 pages
Book Rating : 4.:/5 (13 download)

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Book Synopsis Effets des antibiotiques sur le procédé d'épuration par boues activées by : jean-Noël Louvet

Download or read book Effets des antibiotiques sur le procédé d'épuration par boues activées written by jean-Noël Louvet and published by . This book was released on 2010 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'objectif de ce travail est de caractériser l'effet de l'érythromycine sur l'activité bactérienne et l'inhibition de l'épuration dans les réacteurs de traitement des eaux usées urbaines. L'étude a montré l'importance du temps d'exposition à l'érythromycine. L'inhibition de la nitrification et de l'épuration de la DCO a été mesurée sur une période de 4 h pour des concentrations supérieures à 1 mg/L d'érythromycine alors que l'inhibition de l'épuration pour une concentration d'érythromycine de 4 μg/L a été mesurée suite à 20 h d'exposition. L'origine de la liqueur mixte est également déterminante : l'érythromycine a inhibé la nitrification avec les boues de Nancy mais n'a pas inhibé la nitrification avec les boues et Épinal. Par contre, l'inhibition de l'épuration de la DCO a été mesurée pour les deux boues. Des analyses microscopiques ont montré qu'en présence d'érythromycine les flocs bactériens se fractionnaient suite aux lyses bactériennes. La microscopie en épifluorescence et la microscopie confocale combinées à des marqueurs de viabilité fluorescents ont permis de déterminer les vitesses de mortalité bactérienne. Ces études ont mis en évidence un temps de latence qui précède la mortalité des bactéries. Ce temps de latence pourrait être lié aux mécanismes d'adsorption de l'antibiotique et de diffusion dans les flocs, ainsi qu'à la vitesse biologique de mortalité. Enfin, un marquage simultané Gram et viabilité (microscopie confocale 3D au cours du temps) a montré que l'érythromycine pourrait modifier la composition bactérienne des boues en sélectionnant les bactéries les moins sensibles.

Étude expérimentale des effets du pH, du rayonnement et de la température sur la disparition des Bactéries d'intérêt sanitaire et évaluation de la résistance aux antibiotiques d'E. coli lors de l'épuration des eaux usées

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ISBN 13 :
Total Pages : 181 pages
Book Rating : 4.:/5 (116 download)

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Book Synopsis Étude expérimentale des effets du pH, du rayonnement et de la température sur la disparition des Bactéries d'intérêt sanitaire et évaluation de la résistance aux antibiotiques d'E. coli lors de l'épuration des eaux usées by : Nour-Eddine Mezrioui

Download or read book Étude expérimentale des effets du pH, du rayonnement et de la température sur la disparition des Bactéries d'intérêt sanitaire et évaluation de la résistance aux antibiotiques d'E. coli lors de l'épuration des eaux usées written by Nour-Eddine Mezrioui and published by . This book was released on 1987 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: UN SYSTEME DE TRAITEMENT PAR LAGUNAGE VISANT A EPURER LES COLIFORMES FECAUX EST UTILISE, MAIS LES BACTERIES SONT PRESENTES DANS LES EAUX EPUREES. L'ETUDE DE LA SENSIBILITE AUX ANTIBIOTIQUES DE E. COLI MONTRENT QU'ILS SONT PLUS RESISTANTS A LA SORTIE DU SYSTEME EPURATEUR QU'A L'ENTREE. CE TRAITEMENT PAR DES BOUES ACTIVEES PERMET D'OBSERVER UNE MEME RESISTANCE A L'ENTREE OU LA SORTIE DE LA STATION

Advances in Solid State Fermentation

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Publisher : Springer Science & Business Media
ISBN 13 : 9401706611
Total Pages : 641 pages
Book Rating : 4.4/5 (17 download)

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Book Synopsis Advances in Solid State Fermentation by : S. Roussos

Download or read book Advances in Solid State Fermentation written by S. Roussos and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 641 pages. Available in PDF, EPUB and Kindle. Book excerpt: G.HAINNAUX Departement Milieu et Activites Agricoles, Centre ORSTOM, 911 Avenue d' Agropolis, B.P. 5045, 34032 Montpellier Cedex , France. Solid state fermentation, popularly abbreviated as SSF, is currently investigated by many groups throughout the world. The study of this technique was largely neglected in the past in European and Western countries and there is now a high demand for SSF, meaning in food, environment, agricultural, phannaceutical and many other biotechnological applications. It gives me satisfaction to note that the importance of this technique was realised at my department way back in 1975 since then, our team has put concentrated efforts on developing this technique. xvii Foreword Advances in Solid State Fermentation Foreword M. PUYGRENIER Agropolis Valorisation, Avenue d' Agropolis, 34394 Montpellier Cedex 5, France. On the name of the Scientific Community, I would like to express the wish that this International Symposium on SSF should be successful. Solid State Fermentation is part of biotechnology research. It consists on seeding solid culture medium with bacteria or fungi (filamentous or higher) and on producing, in this medium (solid components and exudates) metabolites and high value products. In fact, this process is very old. In older industries such the food and agricultural, this technique has been extensively used. An example of this is the production of pork sausages and Roquefort cheese. Pharmaceutical industry could make extensive use of SSF in the production of secondary metabolites of many kinds and development in this direction is soon expected.

Basic Technics in Ecological Farming / Techniques de Base en Agriculture Biologique / Grundsätzliche Verfahren der ökologischen Landwirtschaft / Le Maintien de la Fertilité des Sols / The Maintenance of Soil Fertility / Die Erhaltung der Bodenfruchtbarkeit

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Publisher : Birkhäuser
ISBN 13 : 3034863101
Total Pages : 364 pages
Book Rating : 4.0/5 (348 download)

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Book Synopsis Basic Technics in Ecological Farming / Techniques de Base en Agriculture Biologique / Grundsätzliche Verfahren der ökologischen Landwirtschaft / Le Maintien de la Fertilité des Sols / The Maintenance of Soil Fertility / Die Erhaltung der Bodenfruchtbarkeit by : Stuart Hill

Download or read book Basic Technics in Ecological Farming / Techniques de Base en Agriculture Biologique / Grundsätzliche Verfahren der ökologischen Landwirtschaft / Le Maintien de la Fertilité des Sols / The Maintenance of Soil Fertility / Die Erhaltung der Bodenfruchtbarkeit written by Stuart Hill and published by Birkhäuser. This book was released on 2013-12-14 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Livestock Policy Analysis

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Publisher : ILRI (aka ILCA and ILRAD)
ISBN 13 : 9789291460038
Total Pages : 268 pages
Book Rating : 4.4/5 (6 download)

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Book Synopsis Livestock Policy Analysis by : International Livestock Research Institute

Download or read book Livestock Policy Analysis written by International Livestock Research Institute and published by ILRI (aka ILCA and ILRAD). This book was released on 1995-01-01 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Policy concepts; Identification of policy issues; Production systems, supply and demand; Market, price and trade policies; Marketing and distribution systems; Budget and manpower planning; Land tenure police for the livestock sector; Policy analysis report writing and communication; Livestock production and marketing in alphabeta - a case study.

Integration of Geographic Information Systems and Remote Sensing

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Publisher : Cambridge University Press
ISBN 13 : 0521440327
Total Pages : 250 pages
Book Rating : 4.5/5 (214 download)

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Book Synopsis Integration of Geographic Information Systems and Remote Sensing by : Jeffrey L. Star

Download or read book Integration of Geographic Information Systems and Remote Sensing written by Jeffrey L. Star and published by Cambridge University Press. This book was released on 1997-01-28 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: Applications of remote sensing and geographic information systems to resource management and environmental research.

Phage Ecology

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Publisher : Wiley-Interscience
ISBN 13 :
Total Pages : 340 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis Phage Ecology by : Sagar M. Goyal

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.

The Bacteriophage and Its Behavior

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ISBN 13 :
Total Pages : 660 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis The Bacteriophage and Its Behavior by : Félix D'Herelle

Download or read book The Bacteriophage and Its Behavior written by Félix D'Herelle and published by . This book was released on 1926 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt:

One Health, 2nd Edition

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Publisher : CABI
ISBN 13 : 1789242576
Total Pages : 459 pages
Book Rating : 4.7/5 (892 download)

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Book Synopsis One Health, 2nd Edition by : Jakob Zinsstag

Download or read book One Health, 2nd Edition written by Jakob Zinsstag and published by CABI. This book was released on 2020-09-30 with total page 459 pages. Available in PDF, EPUB and Kindle. Book excerpt: One Health, the concept of combined veterinary and human health, has now expanded beyond emerging infectious diseases and zoonoses to incorporate a wider suite of health issues. Retaining its interdisciplinary focus which combines theory with practice, this new edition illustrates the contribution of One Health collaborations to real-world issues such as sanitation, economics, food security and vaccination programmes. It includes more non-infectious disease issues and climate change discussion alongside revised case studies and expanded methodology chapters to draw out implications for practice. Promoting an action-based, solutions-oriented approach, One Health: The Theory and Practice of Integrated Health Approaches highlights the lessons learned for both human and animal health professionals and students.

Sailing to the Reefs

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Publisher : Sheridan House, Inc.
ISBN 13 : 9781574091205
Total Pages : 308 pages
Book Rating : 4.0/5 (912 download)

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Book Synopsis Sailing to the Reefs by : Bernard Moitessier

Download or read book Sailing to the Reefs written by Bernard Moitessier and published by Sheridan House, Inc.. This book was released on 2001 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bernard Moitessier is a writer and one of France's most famous sailors.

3rd World Water Congress

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Publisher : IWA Publishing (International Water Assoc)
ISBN 13 : 9781843394440
Total Pages : 322 pages
Book Rating : 4.3/5 (944 download)

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Book Synopsis 3rd World Water Congress by : IWA Programme Committee

Download or read book 3rd World Water Congress written by IWA Programme Committee and published by IWA Publishing (International Water Assoc). This book was released on 2003-01-01 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:

People and Environment in Africa

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ISBN 13 :
Total Pages : 298 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis People and Environment in Africa by : Tony Binns

Download or read book People and Environment in Africa written by Tony Binns and published by . This book was released on 1995-04-12 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: A series of case studies revealing how the indigenous people of Africa are coping with the local environment by using a number of methods such as soil conservation, diversification, pastoral systems, irrigation projects and innovative crop-growing strategies.

Agricultural English

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Publisher : Cambridge Scholars Publishing
ISBN 13 : 1443839612
Total Pages : 385 pages
Book Rating : 4.4/5 (438 download)

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Book Synopsis Agricultural English by : Georgeta Raţă

Download or read book Agricultural English written by Georgeta Raţă and published by Cambridge Scholars Publishing. This book was released on 2012-04-25 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: Agricultural English is a collection of essays on the English of Agriculture. The approach is a linguistic one: the different aspects of the English used in the field of agriculture (agricultural practices, agricultural systems) and in some fields related to agriculture (agricultural zoology, agri-tourism, biology, botany, ecology, entomology, gastronomy, land measurement, plant pathology, zoology) are analysed from a morphological (combination, derivation), syntactical (nominal phrases, verbal phrases), lexical and lexicographical, semantic (homonymy, semantic fields, synonymy, terminology), pragmatic (academic discourse, idiom, metaphor), etymological (etymon, Latin heritage), and contrastive (English–Croatian, English–French, English–German, English–Romanian, Romanian–English) points of view. The book will appeal to agriculturists, animal breeders, professors, researchers, students, and translators from Croatian-, English-, French-, German-, and Romanian-speaking countries, active in their own countries or abroad. The types of academic readership it would appeal to include academic teaching staff, researchers and students in the fields of agriculture and related fields – agricultural zoology, agri-tourism, biology, botany, ecology, entomology, gastronomy, land measurement, plant pathology, and zoology.

Fundamentals Of Aquatic Toxicology

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Publisher : CRC Press
ISBN 13 : 100016294X
Total Pages : 1152 pages
Book Rating : 4.0/5 (1 download)

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Book Synopsis Fundamentals Of Aquatic Toxicology by : Gary M. Rand

Download or read book Fundamentals Of Aquatic Toxicology written by Gary M. Rand and published by CRC Press. This book was released on 2020-08-06 with total page 1152 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text is divided into three parts. The first part describes basic toxicological concepts and methodologies used in aquatic toxicity testing, including the philosophies underlying testing strategies now required to meet and support regulatory standards. The second part of the book discusses various factors that affect transport, transformation, ultimate distribution, and accumulation of chemicals in the aquatic environment, along with the use of modelling to predict fate.; The final section of the book reviews types of effects or endpoints evaluated in field studies and the use of structure-activity relationships in aquatic toxicology to predict biological activity and physio-chemical properties of a chemical. This section also contains an extensive background of environmental legislation in the USA and within the European Community, and an introduction to hazard/risk assessment with case studies.

The Long Way

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Publisher : Sheridan House, Inc.
ISBN 13 : 9780924486845
Total Pages : 260 pages
Book Rating : 4.4/5 (868 download)

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Book Synopsis The Long Way by : Bernard Moitessier

Download or read book The Long Way written by Bernard Moitessier and published by Sheridan House, Inc.. This book was released on 1995 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bernard Moitessier is a writer and one of France's most famous sailors.

Before Nature Dies

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ISBN 13 :
Total Pages : 418 pages
Book Rating : 4./5 ( download)

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Book Synopsis Before Nature Dies by : Jean Dorst

Download or read book Before Nature Dies written by Jean Dorst and published by . This book was released on 1971 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Analytical Profiles of Drug Substances

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Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (38 download)

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Book Synopsis Analytical Profiles of Drug Substances by :

Download or read book Analytical Profiles of Drug Substances written by and published by . This book was released on 1972 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: