Boues d'épuration et micro-organismes pathogènes

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

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Book Synopsis Boues d'épuration et micro-organismes pathogènes by : Bérangère Cadiergues

Download or read book Boues d'épuration et micro-organismes pathogènes written by Bérangère Cadiergues and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Thèse de doctorat en Chimie et microbiologie de l'eau. En France, le traitement des eaux résiduaires abouti à une production annuelle de 865 000 tonnes de boues d'épuration (M.S.) en majeure partie éliminées par incinération ou par valorisation agricole. La contamination microbiologique des boues brutes est systématique, du fait même de leur nature fécale. Par ailleurs, ces boues à forte teneur en matière organique sont très souvent le siège de fermentations, à l'origine de nuisances olfactives. Elles doivent donc subir, avant d'être valorisées en agriculture, un ou plusieurs traitements de stabilisation, visant essentiellement à réduire leur pouvoir fermentescible. Ces traitements de stabilisation sont généralement défavorables à la survie des micro-organismes et certains d'entre eux entraînent une telle inactivation des pathogènes qu'ils sont qualifiés de traitements hygiénisants. Ainsi, la réglementation française a-t-elle introduit la notion de boues hygiénisées, qui doivent contenir moins de 8 salmonelles, moins de 3 oeufs d'heminthes viables et moins de 3 Enterovirus (NPPUC) par 10 grammes de matière sèche. Les boues stabilisées, ou hygiénisées, sont épandues à l'état liquide, pâteux ou solide, après une période de stockage pouvant aller jsuqu'à 9 mois. Au cours de ces différentes étapes de stabilisation et de stockage, les micro-organismes entériques sont soumis à une inactivation. Néanmoins, les quantités de virus, bactéries et oeufs de parasites intestinaux épandues sur les sols peuvent constituer un risque de contamination des hommes ou des animaux, qui dépend notamment de leur survie dans les sols et leur dose minimale infectante. L'obejctif du travail a été d'étudier la contamination microbiologique des boues d'épuration urbaines, et, plus particulièrement le devenir de certains micro-organismes pendant le stockage des boues et à la suite de 2 traitements susceptibles d'être considérés comme hygiénisants, à savoir le chaulage et le compostage. L'étude a porté sur 3 micro-organismes pathogènes (Enterovirus, salmonelles et oeufs de nématodes viables) et parallèlement sur 2 indicateurs bactériens de contamination (E. coli et entérocoques) et 3 indicateurs potentiels de contamination virale ( coliphages somatiques, bactériophages à ARN F spécifiques et bactériophages de B. fragilis).[...]

Wastewater Bacteria

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Publisher : John Wiley & Sons
ISBN 13 : 0471979899
Total Pages : 267 pages
Book Rating : 4.4/5 (719 download)

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Book Synopsis Wastewater Bacteria by : Michael H. Gerardi

Download or read book Wastewater Bacteria written by Michael H. Gerardi and published by John Wiley & Sons. This book was released on 2006-04-20 with total page 267 pages. Available in PDF, EPUB and Kindle. Book excerpt: A practical guide to wastewater bacteria and the roles they perform in wastewater treatment Communicating material in a practical manner for operators and technicians who regulate and troubleshoot their wastewater treatment processes, Wastewater Bacteria discusses the effective control and proper operation of aerobic (activated sludge) and anaerobic (anaerobic digesters) biological treatment units to ensure that an adequate, active, and appropriate population of bacteria is present in each treatment unit. It is a hands-on guide to understanding the biology and biological conditions that occur at each treatment unit. Avoiding unnecessary technical jargon and chemical equations, Wastewater Bacteria, the fifth book in the Wastewater Microbiology Series, explores and explains: * Bacteria and the wastewater environment * Enzymes and sludge production * Nitrogen, phosphorus, and sulfur bacteria * Floc formation and filamentous organisms * Nitrification and denitrification * Sulfate reduction, fermentation, and methane production * Toxicity * Foam and malodor production The goal of Wastewater Bacteria is to enable plant operators to achieve the twofold basic objectives of wastewater treatment-to degrade organic wastes to a level where a significant, dissolved oxygen demand is not exerted upon receiving waters and to remove nutrients to levels where photosynthetic organisms in receiving waters are limited in their growth. This straightforward manual equips plant technicians to meet these objectives with essential information to understand the biological processes and organisms involved in wastewater treatment.

Die-off of Human Pathogens in Stored Wastewater Sludge and Sludge Applied to Land

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Publisher :
ISBN 13 : 9781875298952
Total Pages : 155 pages
Book Rating : 4.2/5 (989 download)

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Book Synopsis Die-off of Human Pathogens in Stored Wastewater Sludge and Sludge Applied to Land by : Melbourne Water Corporation

Download or read book Die-off of Human Pathogens in Stored Wastewater Sludge and Sludge Applied to Land written by Melbourne Water Corporation and published by . This book was released on 1995 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Risques sanitaires liés aux boues d'épuration des eaux usées urbaines

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Publisher :
ISBN 13 : 9782743002534
Total Pages : 106 pages
Book Rating : 4.0/5 (25 download)

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Book Synopsis Risques sanitaires liés aux boues d'épuration des eaux usées urbaines by : France. Conseil supérieur d'hygiène publique de France

Download or read book Risques sanitaires liés aux boues d'épuration des eaux usées urbaines written by France. Conseil supérieur d'hygiène publique de France and published by . This book was released on 1998-01-01 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Characterization, Treatment and Use of Sewage Sludge

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Publisher : Springer Science & Business Media
ISBN 13 : 9400985061
Total Pages : 817 pages
Book Rating : 4.4/5 (9 download)

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Book Synopsis Characterization, Treatment and Use of Sewage Sludge by : P. L'Hermite

Download or read book Characterization, Treatment and Use of Sewage Sludge written by P. L'Hermite and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 817 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the Second European Symposium held in Vienna, Austria, 21-23 October, 1980

Health Risk Assessments on Potential Pathogens in Land-applied Biosolids

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Publisher :
ISBN 13 : 9781629481128
Total Pages : 0 pages
Book Rating : 4.4/5 (811 download)

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Book Synopsis Health Risk Assessments on Potential Pathogens in Land-applied Biosolids by : Clark D. Bennett

Download or read book Health Risk Assessments on Potential Pathogens in Land-applied Biosolids written by Clark D. Bennett and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Approximately 3.4 million tons of biosolids, dry weight, are land-applied annually to farms, forests, rangelands, mine lands, and other land use types. Biosolids are defined by the U.S. Environmental Protection Agency (EPA) as "the primarily organic solid product yielded by municipal wastewater treatment processes that can be beneficially recycled" as soil amendments. Concerns for potential human health effects from land-applied biosolids can be addressed through the conduct of a risk assessment. This book focuses on the systematic planning step (a "problem formulation" defining the major factors to be considered) for risk assessments of pathogens in land-applied biosolids. This book follows the common problem formulation steps of hazard identification, conceptual model development, and the development of an analysis plan. A review of pathogens in biosolids literature forms the basis of this book. The intended use of this book is to assist in the development of future risk assessments and to identify specific research needed to fill current data gaps.

Les Germes pathogènes dans les boues résiduaires des stations d'épuration urbaines

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Publisher :
ISBN 13 : 9782868170996
Total Pages : 90 pages
Book Rating : 4.1/5 (79 download)

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Book Synopsis Les Germes pathogènes dans les boues résiduaires des stations d'épuration urbaines by : Nicolas Elissalde

Download or read book Les Germes pathogènes dans les boues résiduaires des stations d'épuration urbaines written by Nicolas Elissalde and published by . This book was released on 1994 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Pathogens in Biosolids and Their Significance in Beneficial Use Programmes

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Publisher :
ISBN 13 : 9780953967957
Total Pages : 100 pages
Book Rating : 4.9/5 (679 download)

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Book Synopsis Pathogens in Biosolids and Their Significance in Beneficial Use Programmes by :

Download or read book Pathogens in Biosolids and Their Significance in Beneficial Use Programmes written by and published by . This book was released on 2001 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Biosolids Applied to Land

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Publisher :
ISBN 13 :
Total Pages : 376 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Biosolids Applied to Land by : Committee on Toxicants and Pathogens in Biosolids Applied to Land

Download or read book Biosolids Applied to Land written by Committee on Toxicants and Pathogens in Biosolids Applied to Land and published by . This book was released on 2002-09-30 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: " ... this report ... searched for evidence on human health effects related to biosolids exposure and the technical methods and approaches used by EPA to establish its human-health-based chemical and pathogen standards for biosolids."--P. xi.

Health Risk Assessments on Potential Pathogens in Land-Applied Biosolids

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Publisher :
ISBN 13 : 9781629481135
Total Pages : 171 pages
Book Rating : 4.4/5 (811 download)

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Book Synopsis Health Risk Assessments on Potential Pathogens in Land-Applied Biosolids by : Clark D. Bennett

Download or read book Health Risk Assessments on Potential Pathogens in Land-Applied Biosolids written by Clark D. Bennett and published by . This book was released on 2014-05-14 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt: Approximately 3.4 million tons of biosolids, dry weight, are land-applied annually to farms, forests, rangelands, mine lands, and other land use types. Biosolids are defined by the U.S. Environmental Protection Agency (EPA) as "the primarily organic solid product yielded by municipal wastewater treatment processes that can be beneficially recycled" as soil amendments. Concerns for potential human health effects from land-applied biosolids can be addressed through the conduct of a risk assessment. This book focuses on the systematic planning step (a "problem formulation" defining the major factors to be considered) for risk assessments of pathogens in land-applied biosolids. This book follows the common problem formulation steps of hazard identification, conceptual model development, and the development of an analysis plan. A review of pathogens in biosolids literature forms the basis of this book. The intended use of this book is to assist in the development of future risk assessments and to identify specific research needed to fill current data gaps.

Energetics and Technology of Biological Elimination of Wastes

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Publisher : Elsevier
ISBN 13 : 0080874681
Total Pages : 261 pages
Book Rating : 4.0/5 (88 download)

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Book Synopsis Energetics and Technology of Biological Elimination of Wastes by :

Download or read book Energetics and Technology of Biological Elimination of Wastes written by and published by Elsevier. This book was released on 2011-09-22 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt: Energetics and Technology of Biological Elimination of Wastes

Agrindex

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Publisher :
ISBN 13 :
Total Pages : 936 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis Agrindex by :

Download or read book Agrindex written by and published by . This book was released on 1995 with total page 936 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Faecal Sludge Management

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Publisher : IWA Publishing
ISBN 13 : 1780404735
Total Pages : 428 pages
Book Rating : 4.7/5 (84 download)

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Book Synopsis Faecal Sludge Management by : Linda Strande

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.

Microbiology

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Publisher :
ISBN 13 : 9781942341536
Total Pages : 140 pages
Book Rating : 4.3/5 (415 download)

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Book Synopsis Microbiology by : Holly Ahern

Download or read book Microbiology written by Holly Ahern and published by . This book was released on 2018-05-22 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: As a group of organisms that are too small to see and best known for being agents of disease and death, microbes are not always appreciated for the numerous supportive and positive contributions they make to the living world. Designed to support a course in microbiology, Microbiology: A Laboratory Experience permits a glimpse into both the good and the bad in the microscopic world. The laboratory experiences are designed to engage and support student interest in microbiology as a topic, field of study, and career. This text provides a series of laboratory exercises compatible with a one-semester undergraduate microbiology or bacteriology course with a three- or four-hour lab period that meets once or twice a week. The design of the lab manual conforms to the American Society for Microbiology curriculum guidelines and takes a ground-up approach -- beginning with an introduction to biosafety and containment practices and how to work with biological hazards. From there the course moves to basic but essential microscopy skills, aseptic technique and culture methods, and builds to include more advanced lab techniques. The exercises incorporate a semester-long investigative laboratory project designed to promote the sense of discovery and encourage student engagement. The curriculum is rigorous but manageable for a single semester and incorporates best practices in biology education.

Safe Use of Wastewater in Agriculture

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Publisher : Springer
ISBN 13 : 331974268X
Total Pages : 182 pages
Book Rating : 4.3/5 (197 download)

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Book Synopsis Safe Use of Wastewater in Agriculture by : Hiroshan Hettiarachchi

Download or read book Safe Use of Wastewater in Agriculture written by Hiroshan Hettiarachchi and published by Springer. This book was released on 2018-03-09 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a broad and global level description of the current status of wastewater use in agriculture and then brings the readers to various places in the MENA Region and Europe to explain how some countries and regions have addressed the challenges during implementation. On a global scale, over 20 million hectares of agricultural land are irrigated using wastewater. This is one good, and perhaps the most prominent, example of the safe use potential of wastewater. Water scarcity and the cost of energy and fertilisers are among the main factors driving millions of farmers and other entrepreneurs to make use of wastewater. In order to address the technical, institutional, and policy challenges of safe water reuse, developing countries and countries in transition need clear institutional arrangements and more skilled human resources, with a sound understanding of the opportunities and potential risks of wastewater use. Stakeholders in wastewater irrigation who need to implement from scratch or improve current conditions, find it difficult to gather the necessary information on practical implementation aspects. The main objective of this book is to bridge that gap.

Biological Wastewater Treatment

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Publisher : IWA Publishing (International Water Assoc)
ISBN 13 :
Total Pages : 170 pages
Book Rating : 4.:/5 (4 download)

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Book Synopsis Biological Wastewater Treatment by : Mogens Henze

Download or read book Biological Wastewater Treatment written by Mogens Henze and published by IWA Publishing (International Water Assoc). This book was released on 1881 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: For information on the online course in Biological Wastewater Treatment from UNESCO-IHE, visit: http://www.iwapublishing.co.uk/books/biological-wastewater-treatment-online-course-principles-modeling-and-design Over the past twenty years, the knowledge and understanding of wastewater treatment have advanced extensively and moved away from empirically-based approaches to a first principles approach embracing chemistry, microbiology, physical and bioprocess engineering, and mathematics. Many of these advances have matured to the degree that they have been codified into mathematical models for simulation with computers. For a new generation of young scientists and engineers entering the wastewater treatment profession, the quantity, complexity and diversity of these new developments can be overwhelming, particularly in developing countries where access is not readily available to advanced level tertiary education courses in wastewater treatment. Biological Wastewater Treatment addresses this deficiency. It assembles and integrates the postgraduate course material of a dozen or so professors from research groups around the world that have made significant contributions to the advances in wastewater treatment. The book forms part of an internet-based curriculum in biological wastewater treatment which also includes: Summarized lecture handouts of the topics covered in book Filmed lectures by the author professors Tutorial exercises for students self-learning Upon completion of this curriculum the modern approach of modelling and simulation to wastewater treatment plant design and operation, be it activated sludge, biological nitrogen and phosphorus removal, secondary settling tanks or biofilm systems, can be embraced with deeper insight, advanced knowledge and greater confidence.

Selected Water Resources Abstracts

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Publisher :
ISBN 13 :
Total Pages : 952 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Selected Water Resources Abstracts by :

Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1987 with total page 952 pages. Available in PDF, EPUB and Kindle. Book excerpt: