Author: Varinia Viridiana Felix Parra
Publisher:
ISBN:
Category : Civil engineering
Languages : en
Pages : 126

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Author: World Health Organization
Publisher: World Health Organization
ISBN: 9240067698
Category : Technology & Engineering
Languages : en
Pages : 148

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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 69

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Topics addressed in this document include: point of use water treatment devices; activated carbon water treatment devices; removal of chemicals in drinking water by point-of-use treatment devices and associated microbiological problems; home water treatment; notes on field treatment of water; and drinking water away from home.

Author: Stephanie D. Paredes
Publisher:
ISBN:
Category : Environmental engineering
Languages : en
Pages :

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In Peru, lack of water, sanitation, and hygiene (WASH) results in 6,600 deaths per year that represents approximately 3.9% of total deaths. Three thousand and nine hundred of these deaths were due to diarrheal diseases (Prüss-Üstün et al., 2008). Systematic reviews suggest that interventions to improve microbial quality of drinking water are successful in reducing diarrheal diseases (Fewtrell et al., 2005; Clasen et al., 2007; Fry et al., 2013). Interventions for household water treatment and safe storage to ensure safe drinking water reduce diarrhea by 31-52% (WHO/UNICEF, 2013). The SAWYER PointONE filter, a portable and adaptable membrane filtration device as small as the hand, is one point-of-use (POU) technology option for populations that rely on unsafe water from an improved source, or for areas that still rely on unimproved water sources for drinking and cooking. The filter functions strictly through mechanical exclusion accomplished by a hollow fiber membrane. The filters are certified for 0.1 μm as the largest pore size; therefore preventing diarrhea-causing bacteria such as E. coli, cholera, and typhoid to pass through the membrane. This research focuses on SAWYER water filter users who use a filter purchased through a sales agent in Independencia, Ica, Peru. Fifteen households in 9 communities and a total of 39 individuals were surveyed with the overall goal of better understanding the adoption of the SAWYER water filter as a POU water treatment technology in relation to three themes of: 1) household socio-economic factors 2) water, sanitation and hygiene (WASH) related characteristic and behaviors of users, and 3) Health Belief Model factors. The results showed SAWYER water filter users to have higher socio-economic status on average. All households had a high Progress out of Poverty Index® (PPI®) score. The heads of households, both male and female, were found to be more educated than the national average.

Author: Graciela Schneier-Madanes
Publisher: Springer Science & Business Media
ISBN: 9048127769
Category : Science
Languages : en
Pages : 361

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International voices fill the pages of Water and Sustainability in Arid Regions, forming an original scientific exploration of current water research and management issues. In arid regions, agriculture that is ill-adapted to the environment, accelerated urbanization, poverty, and increasing pollution challenge access to and uses of water. Understanding these issues requires incorporating findings from both the physical and social sciences at different temporal and spatial scales. The chapters in this book were written by hydrologists, remote sensing specialists, ecologists, historians, economists, political scientists, architects, archaeologists, and other experts who live in and study arid lands. The authors present updates, overviews, and analyses of water challenges these areas have faced and are striving to address, from salinization in the fabled Taklimakan Desert in China to land degradation in the northern Mediterranean to groundwater over-exploitation in the southwestern United States. The book also examines desertification, remote sensing, qanat systems, architecture, arsenic contamination, and other case studies from Iran, the Maghreb region, Argentina and Chile, and Mexico. From this conceptual mosaic of comparative perspectives and research methods emerges a strong assumption: an interdisciplinary approach that combines physical and social sciences is the first step toward globally and comprehensively addressing water and sustainability."This book is a valuable and welcome contribution to the discussion of water and sustainable development. Through the collection of chapters, the book clearly illustrates the contemporary diversity of approaches to water scarcity and presents pertinent and new research findings that readers generally do not find compiled together. The result is a highly relevant, accessible, and timely resource that is unique in its international and interdisciplinary content. This is a must-read for anyone working on environmental and sustainability issues in arid lands."André Mariotti, University Pierre et Marie Curie, and INSU - CNRS (National Institute for Earth Sciences and Astronomy-National Center for Scientific Research/Centre National de la Recherche Scientifique), France "Anyone who reads this book will find himself or herself contemplating the need to rethink how we approach the issue of water and sustainability in arid lands. Drawing on the expertise of both physical and social scientists, the chapters taken as a whole present global, historic, and current perspectives on water scarcity in a multi-layered way that rarely has been done before." Miguel Solanes, Madrid Water Institute, Spain

Author: William R. Tiffany
Publisher: McGraw-Hill Humanities, Social Sciences & World Languages
ISBN:
Category : Language Arts & Disciplines
Languages : en
Pages : 456

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Author: F. C. Meadows
Publisher:
ISBN:
Category : English language
Languages : en
Pages : 824

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Author: Mark M. Benjamin
Publisher: John Wiley & Sons
ISBN: 1118632273
Category : Technology & Engineering
Languages : en
Pages : 906

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Explains the fundamental theory and mathematics of water and wastewater treatment processes By carefully explaining both the underlying theory and the underlying mathematics, this text enables readers to fully grasp the fundamentals of physical and chemical treatment processes for water and wastewater. Throughout the book, the authors use detailed examples to illustrate real-world challenges and their solutions, including step-by-step mathematical calculations. Each chapter ends with a set of problems that enable readers to put their knowledge into practice by developing and analyzing complex processes for the removal of soluble and particulate materials in order to ensure the safety of our water supplies. Designed to give readers a deep understanding of how water treatment processes actually work, Water Quality Engineering explores: Application of mass balances in continuous flow systems, enabling readers to understand and predict changes in water quality Processes for removing soluble contaminants from water, including treatment of municipal and industrial wastes Processes for removing particulate materials from water Membrane processes to remove both soluble and particulate materials Following the discussion of mass balances in continuous flow systems in the first part of the book, the authors explain and analyze water treatment processes in subsequent chapters by setting forth the relevant mass balance for the process, reactor geometry, and flow pattern under consideration. With its many examples and problem sets, Water Quality Engineering is recommended as a textbook for graduate courses in physical and chemical treatment processes for water and wastewater. By drawing together the most recent research findings and industry practices, this text is also recommended for professional environmental engineers in search of a contemporary perspective on water and wastewater treatment processes.

Author: S.J. van der Linde
Publisher: Sidestone Press
ISBN: 9088901066
Category : Social Science
Languages : en
Pages : 430

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What are European archaeologists doing abroad? What have they been doing there for the past three to four centuries? Are they doing things differently nowadays? To address these questions, this book explores the scope, impact and ethics of European archaeological policies and practices in the Mediterranean area, the Near East, sub-Saharan Africa, Asia and Latin America. Acknowledging that international and transcultural projects have a range of different stakeholders, the first part of this book aims to identify some of the values and motivations behind different European archaeologies abroad. This is done by providing thorough historical overviews on a range of European countries, including France, Spain, Germany, Belgium, the Netherlands and Poland. But how are these values translated, through socio-political, theoretical and administrative frameworks, unto local circumstances in host countries? And how are these archaeological activities received locally? The second part of this book attempts to answer these questions through a range of historical and contemporary case studies, in Africa, in Asia, in South America, in the Near East and in Europe. The third part of the book offers several critical reflections on European values, motivations and collaboration projects, as perceived by archaeological heritage professionals based in, and/or working in Senegal, Sudan, Somaliland, Colombia, and the Near East. This collection of historical overviews, contemporary case studies and critical reflections focuses on the challenging relationships between archaeological practices and policies, including the requirements and wishes of archaeologists, of local communities and of other stakeholders in Europe and in the host countries. In addition to researchers and students, this book should be of interest to practicing archaeologists, heritage professionals and policy makers the world over, as they seek to reach better informed decisions regarding archaeological projects and international collaboration. This publication was produced in the framework of the ACE project – “Archaeology in Contemporary Europe. Professional Practices and Public Outreach”, with the support of the Culture 2007-2013 programme of the European Commission.

Author: United States. Office of Water Research and Technology
Publisher:
ISBN:
Category : Saline water conversion
Languages : en
Pages : 16

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