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Traitement Deaux Usees Domestiques En Climat Sahelien
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Book Synopsis Traitement d'eaux usées domestiques en climat sahélien by : Mamadou Dahira Diagne
Download or read book Traitement d'eaux usées domestiques en climat sahélien written by Mamadou Dahira Diagne and published by Editions Universitaires Europeennes. This book was released on 2015-12-23 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Durant ces dernieres annees, le traitement des eaux usees par des procedes de systeme extensif et particulierement le lagunage a microphyte a connu une veritable evolution dans les pays tropicaux ou le climat est favorable. Malgre ce progres, le resultat obtenu dans le domaine de l'assainissement reste encore a un faible taux. La recherche de nouvelles unites similaires au traitement par lagunage, plus accessible et efficace demeure toujours d'actualite. C'est dans cette perspective qu'un nouveau pilote hybride a ete developpe et mis en place sur le site experimental de l'Institut International d'Ingenierie de l'Eau et de l'Environnement. Ce dispositif comporte deux filieres de traitement: l'une formee de deux Reacteurs Anaerobies a Haut Rendement en serie couples a un Filtre a Sable (RAHR-FS), et l'autre formee egalement des memes Reacteurs Anaerobies a Haut Rendement en serie mais couples cette fois a un Bassin Lamelle (RAHR-BL). Cette presente etude vise a evaluer la performance epuratoire de ces deux filieres de traitement. Pour cela, l'evolution des parametres de pollution a ete suivie de l'entree a la sortie de chaque unite de traitement pendant une periode de 15 semaines."
Book Synopsis Infiltration-percolation sur sable et sur fibre de coco, filtres plantes et épuration d'eaux usées domestiques à dominance agroalimentaire sous climat tropical sec by : Martine Diallo
Download or read book Infiltration-percolation sur sable et sur fibre de coco, filtres plantes et épuration d'eaux usées domestiques à dominance agroalimentaire sous climat tropical sec written by Martine Diallo and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Au Burkina Faso, l'un des soucis majeurs demeure la gestion des eaux usées et excréta. Dans l'optique de trouver une alternative à l'assainissement autonome (assainissement non collectif), des technologies biologiques rustiques par cultures fixées sur supports fins, destinées aux petites et moyennes collectivités ont été expérimentées. Le premier volet du travail expérimental à consister à évaluer les performances comparées du sable et des fibres de coco en traitement d'eaux résiduaires urbaines après un processus anaérobie par lagunage. Dans une deuxième étape, ont été évaluées les performances épuratoires de filtres plantés de Andropogon gayanus Kunth et Chrysopogon nigritana (Benth) Veldkamp deux poaceae des zones tropicales. Les abattements moyens d'élimination de la pollution biodégradable sont respectivement de 99% et 98% à la sortie du filtre à sable et de celui de substrat de coco. Cependant, il y a une DCO ajoutée due à l'extraction de composés phénoliques du substrat de coco qui occulte les performances réelles de ce support de culture. Toutefois, en l'absence d'une bonne nitrification au sein du massif de substrat de coco, contrairement au sable, nous avons relevé une élimination de l'azote sous forme d'ammonium avec un rendement de 75%. Par ailleurs, ce matériau végétal par sa structure très poreuse a montré une plus grande capacité à éliminer les sels minéraux comparativement au sable. Quant aux filtres plantés de Andropogon gayanus et Chrysopogon nigritana, si les deux pilotes ont assuré des abattements de plus de 97% de la DBO5, le premier a assuré un prélèvement plus important des nutriments (N et P).
Book Synopsis Wetland Systems for Water Pollution Control 1998 by : P. Cooper
Download or read book Wetland Systems for Water Pollution Control 1998 written by P. Cooper and published by IWA Publishing (International Water Assoc). This book was released on 1999-05-31 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the International Conference on Wetland Systems for Water Pollution Control, held in Brazil, 27 September - 2 October 1998. It is increasingly recognised that wetland systems can play a significant role in protection of the water environment. Where once their main attraction was a perceived 'green' character, now constructed wetlands are chosen to provide cost-effective and efficient wastewater treatment - in municipal and industrial applications - that matches up to regulatory requirements. The forty-five papers in these proceedings have been selected from those presented at the highly successful 6th International Conference on Wetland Systems for Water Pollution Control. Six papers are invited keynote addresses, which review aspects of wetland systems from an authoritative and up-to-date perspective. The remaining papers are divided into the following themes: Industrial Wastewaters; Ecology of Microorganisms and Natural Systems; Wetland Processes; Combined Systems; Role of Plants; Design of Wetlands; Wetland Hydraulics; Hospital Wastewaters; and Stormwater and Runoff.
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.
Download or read book Terra 2008 written by Leslie Rainer and published by Getty Publications. This book was released on 2011-06-14 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earthen architecture constitutes one of the most diverse forms of cultural heritage and one of the most challenging to preserve. It dates from all periods and is found on all continents but is particularly prevalent in Africa, where it has been a building tradition for centuries. Sites range from ancestral cities in Mali to the palaces of Abomey in Benin, from monuments and mosques in Iran and Buddhist temples on the Silk Road to Spanish missions in California. This volume's sixty-four papers address such themes as earthen architecture in Mali, the conservation of living sites, local knowledge systems and intangible aspects, seismic and other natural forces, the conservation and management of archaeological sites, research advances, and training.
Book Synopsis Water & Heritage by : Willem Willems
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
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:
Book Synopsis How to Design Wastewater Systems for Local Conditions in Developing Countries by : David M. Robbins
Download or read book How to Design Wastewater Systems for Local Conditions in Developing Countries written by David M. Robbins and published by IWA Publishing. This book was released on 2014-03-15 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Environmental Problems in an Urbanizing World by : Jorge Enrique Hardoy
Download or read book Environmental Problems in an Urbanizing World written by Jorge Enrique Hardoy and published by . This book was released on 2001 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: * Updated and much expanded edition of the authors' 1992 classic Environmental Problems in Third World Cities * Comprehensive account of the health- and life- threatening environmental conditions in which a growing proportion of the world's people live * Ideal as a textbook and for professionals and interested general readers * 1st edition widely adopted on urban geography, development studies, environmental courses Most of the world's urban population and most of the large and rapidly growing cities are in developing countries. Often poorly governed, their conditions produce millions of preventable deaths and extensive disease. This book describes these cities' environmental problems and how they affect health, local ecosystems and global cycles. It analyzes the causes: the failure of governments to supply clean water and implement existing measures, or land-owning structures that marginalize the poor. It also highlights the innovative ways in which problems are being tackled, showing solutions are available and the action needed by cities, local governments and community organizations.
Book Synopsis Compendium of Sanitation Systems and Technologies by : Elizabeth Tilley
Download or read book Compendium of Sanitation Systems and Technologies written by Elizabeth Tilley and published by . This book was released on 2014 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hydrology of Mediterranean and Semiarid Regions by : Eric Servat
Download or read book Hydrology of Mediterranean and Semiarid Regions written by Eric Servat and published by . This book was released on 2003 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :International Livestock Research Institute Publisher :ILRI (aka ILCA and ILRAD) ISBN 13 :9789291460038 Total Pages :268 pages Book Rating :4.4/5 (6 download)
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.
Author :Food and Agriculture Organization of the United Nations Publisher :Food & Agriculture Organization of the UN (FAO) ISBN 13 : Total Pages :116 pages Book Rating :4.:/5 (31 download)
Book Synopsis Growing Greener Cities in Africa by : Food and Agriculture Organization of the United Nations
Download or read book Growing Greener Cities in Africa written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Organization of the UN (FAO). This book was released on 2012 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Second Global Plan of Action addresses new challenges, such as climate change and food insecurity, as well as novel opportunities, including information, communication and molecular methodologies. It contains 18 priority activities organized in four main groups: In situ conservation and management; Ex situ conservation; Sustainable use; and Building sustainable institutional and human capacities.
Book Synopsis Biodiversity and Sustainable Development by : Rabindra Nath Pati
Download or read book Biodiversity and Sustainable Development written by Rabindra Nath Pati and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Papers presented at the First Global Summit on Sustainable Development and Biodiversity, held at Raipur during 7-9 February 2009.
Book Synopsis Heritage Sites of Astronomy and Archaeoastronomy in the Context of the UNESCO World Heritage Convention by : Clive L. N. Ruggles
Download or read book Heritage Sites of Astronomy and Archaeoastronomy in the Context of the UNESCO World Heritage Convention written by Clive L. N. Ruggles and published by Ocarina Books. This book was released on 2012 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Thematic Study is a joint venture between ICOMOS, the advisory body to UNESCO on cultural sites, and the International Astronomical Union. It presents an overall vision on astronomical heritage, attempts to identify what constitutes "outstanding universal significance to humankind" in relation to astronomy, and identifies broad issues that could arise in the assessment of cultural properties relating to astronomy. This is the first Thematic Study in any field of science heritage. It is elaborated using examples of properties from around the world, including some already on the World Heritage List or national Tentative Lists. The subject matter ranges from early prehistory to modern astrophysics and space heritage, and also prominently includes dark sky issues and modern observatory sites. An e-version of the Thematic Study was published in June 2010 in time to be presented to the 2010 meeting of UNESCO's World Heritage Committee, where it was duly approved. It has been circulated officially by the WHC to all of UNESCO's National Commissions. This full-colour paperback edition with some updates, and reformatted to new ICOMOS standards, was published in 2011 and is now offered for public sale.
Book Synopsis Population, Environment and Development by : UN. Population Division
Download or read book Population, Environment and Development written by UN. Population Division and published by United Nations Publications. This book was released on 2001 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: The general trends of rapid population growth, sustained but uneven economic improvement, and environmental degradation, are well known. Population and development policies are vital components of action needed to ensure sustainable development and to safeguard the environment. The topics investigated in this report include: the evolution of population and the environment at major UN conferences; trends in population, environment and development; government views; health, mortality, fertility and the environment; urbanization.
Book Synopsis Agrimonde – Scenarios and Challenges for Feeding the World in 2050 by : Sandrine Paillard
Download or read book Agrimonde – Scenarios and Challenges for Feeding the World in 2050 written by Sandrine Paillard and published by Springer. This book was released on 2016-09-03 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: How will the world be able to feed close to 9 billion people in 2050 and still maintain the ecosystems? In this perspective, INRA and CIRAD launched the initiative, in 2006, to develop a foresight project for analysing issues pertaining to the world's food and agricultural systems on the 2050 timeline. This book provides a synthetic presentation of the main conclusions that this foresight project has yielded. First, it recapitulates the main statistical references for the period 1961 to 2003, before going on to describe the Agribiom simulation tool used to calculate food biomass resource use balances. Two scenarios on the 2050 timeline are then considered: Agrimonde GO is a trend-based scenario that bets on economic growth to feed the world, in a context where environmental protection is not a priority; in contrast, the idea in Agrimonde 1 is to feed the world while preserving its ecosystems.
