Author: Raschid-Sally, L., Jayakody, P.
Publisher: IWMI
ISBN: 9290906987
Category : Sewage irrigation
Languages : en
Pages : 39
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Book Description
In 4 out of 5 cities in developing countries, wastewater is used to cultivate perishable crops for urban markets. Such practices create a health risk but provide important livelihood benefits. This study through an analysis of 53 cities in developing countries, contributes to understanding the factors that drive wastewater use. The main drivers are (1) increasing urban water demand without wastewater treatment causing pollution of irrigation water sources; (2) urban food demand favoring agriculture close to cities where water sources are polluted; and (3) lack of cheaper, similarly reliable or safer water sources. Poverty, which constrains the infrastructure needs of urbanization, is an added factor. The study makes policy recommendations stressing on, effectively applying the WHO guidelines, linking investments in water supply with sanitation for maximum beneficial impact on water pollution, and involving actors at both the national and local level, for water quality improvements and health risk reduction
Author: Cheryl De Boer
Publisher: Routledge
ISBN: 1136242708
Category : Social Science
Languages : en
Pages : 328
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Book Description
In an increasingly global community of researchers and practitioners, new technologies and communication means have made the transfer of policies from one country or region to another progressively more prevalent. There has been a lot of attention in the field of public administration paid to policy transfer and institutional transplantation. This book aims to create a better understanding of such transfers in the water management sector. These include the adoption of modern water management concepts, such as integrated water resources management and forms of water governance, which are strongly promoted and sometimes also imposed by various international organizations. Transfers also occur within the scope of development aid or for the purpose of creating business opportunities. In addition, many research organisations, consultancies and governmental agencies are involved in cross-border work. The purpose of this book is therefore to present practical examples of the transfer of modern water management from one locality to another and to critically discuss the transferability of policy and governance concepts by analysing the contextual needs and factors. Case studies are included from North America, Europe, the Middle East and Asia. It is argued that in many cases context matters in water management and that there is no panacea or universal concept that can be applied to all countries or regions with different political, economic, cultural and technological contexts. Yet it is also shown that some countries are facing pressing and similar water management issues that cut across national borders, and hence the transfer of knowledge may be beneficial.
Author: McCartney M. , Alemayehu T. , Shiferaw A. , Awulachew S.
Publisher: IWMI
ISBN: 9290907215
Category : Tana, Lake (Ethiopia)
Languages : en
Pages : 44
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Book Description
Lake Tana, located in the headwaters of the Blue Nile, is valuable for many people including the communities who live around the lakeshore and those who live immediately downstream. The area has been identified as a region for hydropower and irrigation development, vital for economic growth in Ethiopia. A multidisciplinary study was conducted to assess the possible impacts of this development. This study found that current development has benefited some local people but adversely affected others. Future development will exacerbate pressure on the lake. Hard choices must be made about how the water is best utilized. It is important that all stakeholders, including local people, are involved in the decision-making process.
Author: Ken Ashley
Publisher: IWA Publishing
ISBN: 1843392321
Category : Science
Languages : en
Pages : 846
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Book Description
Paperback + CD-ROM Closing the loop for nutrients in wastewaters (municipal sewage, animal wastes, food industry, commercial and other liquid waste streams) is a necessary, sustainable development objective, to reduce resource consumption and greenhouse gas emissions. Chemistry, engineering and process integration understanding are all developing quickly, as new processes are now coming online. A new "paradigm" is emerging, globally. Commercial marketing of recovered nutrients as "green fertilizers" or recycling of nutrients through biomass production to new outlets, such as bioenergy, is becoming more widespread. This exciting conference brings together various waste stream industries, regulators, researchers, process engineers and commercial managers, to develop a broad-based, intersectional understanding and joint projects for phosphorus and nitrogen recovery from wastewater streams, as well as reuse. Over 90 papers from over 30 different countries presented in this volume. This conference is sponsored by: • Metro Vancouver • Global Phosphate Forum • Stantec Consulting Ltd. • The Chartered Institution of Water and Environmental Management (CIWEM) • Ostara Nutrient Recovery Technologies, Inc. (ONRTI) • The University of British Columbia (UBC) • The United States Environmental Protection Agency (EPA) • The British Columbia Water and Wastewater Association (BCWWA) • The Canadian Society for Civil Engineering (CSCE) • The Ostara Research Foundation (ORF)
Author: Eddie N. Laboy-Nieves
Publisher: CRC Press
ISBN: 0203835956
Category : Nature
Languages : en
Pages : 288
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Book Description
Many countries experience lack of harmony among economic development, environmental management and human health. As a consequence, public health, the integrity of ecosystems, and the efforts to reach environmental sustainability, have been adversely affected. The complexity, frequency and magnitude of those impacts is increasingly parallel to the t
Author: Keraita, B.
Publisher: IWMI
ISBN: 9290907851
Category : Technology & Engineering
Languages : en
Pages : 36
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Book Description
Nothing provided
Author: Pay Drechsel
Publisher: IWMI
ISBN: 1844077969
Category : Business & Economics
Languages : en
Pages : 434
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Book Description
First Published in 2009. Routledge is an imprint of Taylor & Francis, an informa company.
Author:
Publisher: IWMI
ISBN: 9290907657
Category : Nature
Languages : en
Pages : 40
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Book Description
More than 1 million hectares of urban land in India could be irrigated for crops if wastewater was made safe for use. Lack of systematic data collection by municipalities makes it difficult to accurately assess the wastewater generation or estimate the total amount of urban area under wastewater irrigation, so the potential of urban and peri-urban farming could be even greater. This study attempted to analyze the current status of wastewater generation, its uses and livelihood benefits especially in agriculture, based on national data and case studies from Ahmedabad, New Delhi, Hyderabad, Kanpur and Kolkata.
Author: Basant Maheshwari
Publisher: Springer
ISBN: 9401788782
Category : Political Science
Languages : en
Pages : 487
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Book Description
The population of cities around the world is growing at an alarming rate, and as a result the landscapes of most cities are going through enormous changes. In particular, fertile agricultural lands at the periphery of cities are being developed without consideration of holistic planning. As such, peri-urban areas, zones of transition from rural to urban land uses located between the outer limits of the urban and the rural environment are experiencing significant losses of agricultural land, increased runoff, and water quality degradation. Concurrently, the demands for water, food and energy are increasing within cities, and unless a balance is struck the liveability of these cities will soon be compromised. The current water and land use changes have serious consequences on lifestyle, environment, health and overall well-being of urban communities. This book therefore helps readers to understand the current issues and challenges and examines suitable strategies and practices to cope with current and future pressures of urbanisation and peri-urban land-use changes. The book examines a number of critical aspects in relation to the future of cities and peri-urban regions, including the suitability of policies and institutions to sustain cities into the future; impact of current trends in land use change, population increase and water demand; long term planning needs and approaches to ensure the secured future for generations ahead; and strategies to adapt the cities and land uses so that they remain viable and liveable. The readership of the book will include policy makers, urban planners, researchers, post-graduate students in urban planning and environmental and water resources management and managers in municipal councils.
Author: Patrice Dion
Publisher: Springer Science & Business Media
ISBN: 364205076X
Category : Technology & Engineering
Languages : en
Pages : 322
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Book Description
The relationships between soils, microbes and humans are of crucial relevance in the tropics, where plant stress and microbial activity are exacerbated. This volume of Soil Biology presents the living component of tropical soils, showing how it is shaped by environmental conditions and emphasizing its dramatic impact on human survival and well-being. Following an introduction to the specificities of tropical soils and of their microbial communities, the biological aspects of soil management are examined, dealing with land use change, conservation and slash-and-burn agriculture, the restoration of hot deserts, agroforestry and paddy rice cultivation. As they are of particular relevance for tropical agriculture, symbioses of plants and microbes are thoroughly covered, as are the biodegradation of pesticides and health risks associated with wastewater irrigation. Lastly, traditional soil knowledge is discussed as a key to our sustainable presence in this world.
