Epuration des eaux usées par lagunage à microphytes et à macrophytes en Afrique de l'Ouest et du Centre PDF Download

Author: Doulaye Kone
Publisher:
ISBN:
Category :
Languages : fr
Pages : 170

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Author: Roger D. Norton
Publisher: John Wiley & Sons
ISBN: 0470857803
Category : Technology & Engineering
Languages : en
Pages : 540

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Prepared under the aegis of the Food and Agriculture Organization of the United Nations (FAO), this text presents a fresh and comprehensive look at agricultural development policy. It provides a clear, systematic review of important classes of policy issues in developing countries and discusses the emerging international consensus on viable approaches to the issues. The text is unique in its coverage and depth and it: Summarises hundreds of references on agricultural development policies Cites policy experiences and applied studies in more than 70 countries Provides guidance for policy makers giving examples of successes and failures Reviews issues related to the formulation of strategies and the requirements for making them successful Develops the conceptual foundations and illustrates policies that have worked, and some that have not, with explanations Topics covered include agriculture’s role in economic development, the objectives and strategies of agricultural policy, linkages between macroeconomic and agricultural policy, policies for the agricultural financial system and agricultural technology development. Upper level undergraduates taking courses in Economic Development and International Development and graduates taking courses in Agricultural Development, International and Economic Development, Natural Resource Management and specialised topics in agriculture will find this text of great interest. It also serves as a reference for professionals and researchers in the field of International Development.

Author: Linda Strande
Publisher: IWA Publishing
ISBN: 1780404727
Category : Science
Languages : en
Pages : 428

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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. Authors: Linda Strande,Eawag, Switzerland, Mariska Ronteltap, UNESCO-IHE Institute for Water Education, Delft, The Netherlands and Damir Brdjanovic, UNESCO-IHE Institute for Water Education, Delft, The Netherlands

Author: Chrispin Kowenje
Publisher: Springer Nature
ISBN: 3031096630
Category : Science
Languages : en
Pages : 290

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This book preserves and scientifically interprets the African foreknowledge on water resources management. It offers insight into the relevance of the traditional knowledge and practices to modern approaches on sustainable water management. The African continent has partially preserved its natural habitat for centuries. In this book, this knowledge is combined with the current scientific understanding. The traditional practices are categorized as: i) water harvesting, ii) water transportation, iii) water storage and conservation, iv) water treatments, v) myths and folk stories about water management or conservation, vi) water resource management systems, and vii) soil–water–forest conservation/management systems sub-topics. The findings presented here are in line with SDG 6, which aims at ensuring availability and sustainable management of water and sanitation for all by the year 2030.

Author: Roger D. Norton
Publisher: Food & Agriculture Org.
ISBN: 9789251048757
Category : Business & Economics
Languages : en
Pages : 546

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Author: Centre technique du cuir, chaussure et habillement (France)
Publisher:
ISBN:
Category :
Languages : fr
Pages :

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Author: École polytechnique (Montréal, Québec). Centre d'ingénierie nordique
Publisher:
ISBN:
Category :
Languages : fr
Pages : 112

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Author: Mahaman Sani Laouali
Publisher:
ISBN:
Category :
Languages : fr
Pages : 434

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LES EXPERIMENTATIONS ONT PORTE SUR DEUX FILIERES DISTINCTES DE TRAITEMENT DES EAUX USEES URBAINES: 1) FERMENTATION ANAEROBIE+LAGUNAGE A MICROPHYTES+PISCICULTURE; 2) FERMENTATION ANAEROBIE+LAGUNAGE A MACROPHYTES OU SONT CULTIVEES DES JACINTHES D'EAU+PISCICULTURE. LE TRAITEMENT PRIMAIRE A ETE OPTIMISE PAR DES ESSAIS A DIFFERENTS TEMPS DE SEJOUR HYDRAULIQUE EN REACTEUR ANAEROBIE A 25C DANS UN REACTEUR DE 5 M#3 EQUIPE DE SUPPORT DE BIOMASSE A BASE DE FIBRES SYNTHETIQUES REGROUPEES EN POMPONS. DES ABATTEMENTS SIGNIFICATIFS EN DCO ONT ETE OBSERVES. DES TAUX DE CROISSANCE DE 0,6 A 0,8 G/JOUR ONT ETE OBTENUS SUR UN ELEVAGE DE TILAPIAS DANS LES EAUX EPUREES

Author: Malick Gaye
Publisher:
ISBN:
Category : Sewage
Languages : fr
Pages : 362

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Author: Jean-Jacques Dubois
Publisher:
ISBN:
Category :
Languages : fr
Pages : 70

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Étude des écosystèmes épurateurs : productivité et composition des plantes aquatiques, fixation des nutriments, dépôts, cycles journaliers et flux de matière.