Le processus de la flottation appliqué à l'extraction des boues secondaires

Le processus de la flottation appliqué à l'extraction des boues secondaires PDF Author:
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Languages : fr
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Le processus de la flottation appliqué à l'extraction des boues secondaires

Le processus de la flottation appliqué à l'extraction des boues secondaires PDF Author:
Publisher:
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Languages : fr
Pages :

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Le Processus de la flottation appliqué à l'ext0action des boues secondaires

Le Processus de la flottation appliqué à l'ext0action des boues secondaires PDF Author: H.-Claude Lavallée
Publisher:
ISBN:
Category :
Languages : fr
Pages : 12

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Des essais de flottation à l'air dissous ont été réalisés pour effectuer la séparation solide-liquide d'un effluent en provenance d'une lagune aérée et de la liqueur mixte d'un traitement biologique par boues activées. Sous toutes les conditions étudiées, la flottation a permis des enlèvements très efficaces de solides, même lors de la situation de foisonnement des boues, avec une utilisation minimale d'agents floculants. Ces essais, combinés des résultats antérieurs d'essais pour les traitements biologiques, ont permis de concevoir un système à l'échelle industrielle et d'effectuer une comparaison technico-économique.

La flottation à air dissous appliquée aux boues secondaires d'usines de désencrage : pâte et papiers

La flottation à air dissous appliquée aux boues secondaires d'usines de désencrage : pâte et papiers PDF Author: Centre québécois en valorisation de la biomasse
Publisher:
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Languages : fr
Pages :

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Faecal Sludge Management

Faecal Sludge Management PDF Author: Linda Strande
Publisher: IWA Publishing
ISBN: 1780404735
Category : Technology & Engineering
Languages : en
Pages : 428

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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.

Dictionary of Building and Civil Engineering

Dictionary of Building and Civil Engineering PDF Author: Don Montague
Publisher: Taylor & Francis
ISBN: 9780419199106
Category : Architecture
Languages : en
Pages : 472

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Book Description
This dual-language dictionary lists over 20,000 specialist terms in both French and English, covering architecture, building, engineering and property terms. It meets the needs of all building professionals working on projects overseas. It has been comprehensively researched and compiled to provide an invaluable reference source in an increasingly European marketplace.

How to Design Wastewater Systems for Local Conditions in Developing Countries

How to Design Wastewater Systems for Local Conditions in Developing Countries PDF Author: David M. Robbins
Publisher: IWA Publishing
ISBN: 178040476X
Category : Science
Languages : en
Pages : 148

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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.

Compendium of Sanitation Systems and Technologies

Compendium of Sanitation Systems and Technologies PDF Author: Elizabeth Tilley
Publisher:
ISBN: 9783906484570
Category :
Languages : en
Pages : 176

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Agrochimica

Agrochimica PDF Author: International Atomic Energy Agency
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 462

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Book Description
Organic matter and soil productivity; Turnover of plant residues; Mineralization of organic compounds; Dynamics of organic forms of nitrogen; Nitrogen economy; Biodegradation of organic matter; Biochemical transformation of organic matter; Bitumens in soil organic matter; Characterization of humic acids; Carbon dating; Modern techniques and their implact on soil organic matter research; Sludge; Soil organic matter components and plant metabolism; Interaction between agrochemicals and organic matter; Peat.

Environmental Aspects of Dredging

Environmental Aspects of Dredging PDF Author: R. N. Bray
Publisher: CRC Press
ISBN: 0203894898
Category : Technology & Engineering
Languages : en
Pages : 398

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Book Description
Expanding a port, deepening a navigation channel or creating new land for development, introduces changes to our physical, social, economic and political environment. Changes may result from events during the construction process, or relate to the nature of the completed structure. Changes can be positive or negative, short-term or long-term, and may affect the immediate vicinity of the project or a larger geographical area. Predicting and assessing all possible effects of a planned dredging activity in a scientifically-sound and reliable manner is essential, so that appropriate control measures can be taken to avoid or mitigate unwelcome impacts. This book provides guidance for a complete holistic environmental evaluation procedure and for the design and implementation of environmental control measures. The book is of particular interest to engineers, government agencies and port authorities, as well as civil engineering consultants and contractors involved in planning and designing dredging, maritime infrastructure and fluvial projects.

Methods of Study in Quantitative Soil Ecology: Population, Production and Energy Flow

Methods of Study in Quantitative Soil Ecology: Population, Production and Energy Flow PDF Author: John Phillipson
Publisher: Blackwell Scientific Publications Limited
ISBN:
Category : Soil biology
Languages : en
Pages : 332

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Book Description
The soil and its total metabolism. Plant roots. Plant litter. Heterotrophic microflora. Protozoa. Nematodes. Enchytraeids. Earthworms. Molluscs. A comparison of extraction methods for terrestrial anthropods. Mites. Apterygotes, pauropods and symphylans. Aphids. Ants and termites. Other arthropods.