Browse Results

Showing 64,876 through 64,900 of 66,452 results

Water and Wastewater Pipeline Assessment Technologies: Classification Systems, Sensors, and Results Interpretation

by Justin Starr

Water and wastewater infrastructure are a somewhat invisible, yet critical, part of modern life. Incredibly, many buried assets have been in service for 50-100 years and are still in good condition. Conversely, other systems fail well before their predicted design lives, causing property damage, injury, and even loss of life. In many cases, early detection could have prevented catastrophic failure, and understanding the state of underground infrastructure has become a key priority for many municipalities. Industry has responded with a number of new and innovative technologies for condition assessment, however, understanding these tools can be difficult, as many vendors treat their proprietary systems as trade secrets. Water and Wastewater Pipeline Assessment Technologies: Classification Systems, Sensors, and Results Interpretation provides a thorough guide to the technical workings of some of the most popular water and wastewater assessment technologies available, including CCTV crawlers, acoustic listening devices, laser sensors, 360˚ video cameras, pipe penetrating radar, and more. Features: Presents an overview of current technologies in CCTV inspection, including next generation video formats, high-definition resolution, and fisheye/sidescan technology. Provides helpful tips and tricks to cut through technical jargon and identify the technological specifications to compare between multiple vendors. Examines the pros and cons of competing technologies including laser and lidar, and provides an overview of unique approaches such as Pipe Penetrating Radar, Focused Electrode Leak Location, and more. Highlights the importance of coding standards, data management, and software tools that can be leveraged to create a successful asset management program. Water and Wastewater Pipeline Assessment Technologies: Classification Systems, Sensors, and Results Interpretation provides a mixture of theory and real-world, practical considerations ranging from deployment tips and data exchange formats to the technical limitations of different technologies. The book is a valuable resource for municipal employees, project engineers, and others involved in designing and implementing major inspection programs.

Water and Wastewater Treatment: A Guide for the Nonengineering Professional, Second Edition

by Joanne E. Drinan Frank Spellman

Lauded for its engaging, highly readable style, the best-selling first edition became the premier guide for nonengineers involved in water and wastewater treatment operations. Water and Wastewater Treatment: A Guide for the Nonengineering Professional, Second Edition continues to provide a simple, nonmathematical account of the unit processes used

Water and Wastewater Treatment Technologies (Energy, Environment, and Sustainability)

by Xuan-Thanh Bui Chart Chiemchaisri Takahiro Fujioka Sunita Varjani

This book discusses major technological advances in the treatment and re-use of wastewater. Its focus is on both novel treatment strategies and the modifications and adaptions of conventional processes to optimize the treatment of a complex variety of pollutants, including organic matter, chemicals and micropollutants in different water resources, as well as the integration of water treatment with bioelectricity production. Written by leading researchers in the field, it will be of interest to a wide range of researchers in both industry and academia.

Water as a Catalyst for Peace: Transboundary Water Management and Conflict Resolution (Earthscan Studies in Water Resource Management)

by Ahmed Abukhater

Examining international water allocation policies in different parts of the world, this book suggests that they can be used as a platform to induce cooperation over larger political issues, ultimately settling conflicts. The main premise is that water can and should be used as a catalyst for peace and cooperation rather than conflict. Evidence is provided to support this claim through detailed case studies from the Middle East and the Lesotho Highlands in Africa. These international cases – including bilateral water treaties and their development and formation process and aftermath – are analyzed to draw conclusions about the outcomes as well as the processes by which these outcomes are achieved. It is demonstrated that the perception of a particular treaty as being equitable and fair is mainly shaped by the negotiation process used to reach certain outcomes, rather than being determined mechanistically by the quantitative allocation of water to each party. The processes and perceptions leading to international water conflict resolutions are emphasized as key issues in advancing cooperation and robust implementation of international water treaties. The key messages of the book are therefore relevant to the geo-political and hydro-political aspects of water resources in the context of bilateral and multilateral conflicts, and the trans-boundary management of water resources, which contributes insights to political ecology, geo-politics, and environmental policy.

Water as an Inescapable Risk: Current Global Water Availability, Quality And Risks With A Specific Focus On South Africa (Springer Water)

by Anja Du Plessis

The book presents an interdisciplinary systematic evaluation of increasing water stress and scarcity over the globe and specifically South Africa. South Africa is used as the prime example as the country is experiencing similar water challenges in terms of availability and quality as most regions across the globe. Water availability is predominantly used to illustrate water scarcity however, continued degradation of the world’s freshwater resources, by a multitude of natural and anthropogenic factors, have consequently exacerbated water stress and scarcity due to it being of insufficient quality for various uses. The increase of water scarcity through both natural and anthropogenic factors has in turn led to water being viewed as an increasing risk within all spheres. Water as a source of conflict has come to the forefront especially within regions which struggle to meet the increasing demands from different water users and trying to achieve future sustainability of the resource. The increase of water scarcity and stress as well as the continued pressure of population and economic growth has brought various new challenges into play. This book focuses on water as an increasing risk over the globe and specifically South Africa by reviewing both water availability and quality, evaluating water as a global and national risk. The book concludes by focusing on current limitations, necessary strategic actions as well as possible policy-related changes which may be required to adapt to future water challenges and to lessen water as an increasing risk.

Water Asset Management in Times of Climate Change and Digital Transformation (Palgrave Studies in Climate Resilient Societies)

by Robert Kijak

In this book, climate change and digital transformation are explored as key strategic drivers for the contemporary practices of water utility companies. These drivers seem to be separate, but clearly, they are not.The recent weather anomalies in water stressed countries are discussed, which have been breaking records and become an elevated risk to water assets. In parallel, the book examines a contextual proposition that the concept of the fourth industrial revolution applied to the water sector, Water 4.0, assists with the water supply decentralisation and sustainability, in particular climate resilience. It further suggests that the implementation of an Asset Management System with reference to the ISO 55001 standard is a useful tool in this process.

Water Availability and Management in Mexico (Water Science and Technology Library #999)

by Vijay P. Singh Amado Enrique Navarro-Frómeta Elena María Otazo-Sánchez

This book presents several complex case studies related to water management and planning in the context of pollution, growing demands, and global climate change in Mexico, but which are also relevant for other countries in Latin America. These concerns are of critical importance for policymakers who are coping with multiple conflicting interests. Water availability in Mexico is polarized, with abundant rainfall and large rivers in the south, and desert-like conditions in the north. The central region, which is the most industrialized, is overpopulated. Mexico City pours millions of cubic meters of “blackwater” into the northern valley daily and receives its clean water from the south. To address these unsustainable conditions, the world's 4th biggest water treatment plant went into operation in 2018. The water infrastructure and governance must satisfy the demands of all sectors, including agricultural, urban, and economic activities. At the same time, water resources are affected by drought, and climate change puts constraints on the supply. As such, regulation and monitoring are important when it comes to adherence to agreed plans and priorities. The book is divided into four sections. 1: Water Availability discusses quantitative aspects, such as supply, methods of calculation, and fracking. 2: Water Quality highlights pollution risks and diagnosis of water resources. 3: Water Allocation examines the sectoral demands and vulnerability due to unsustainable irrigation. 4: Water Governance and Management focuses on laws, urban rules, national parks, planning, and integrated water resources management, among other topics. The chapters include illustrative case studies in Mexico, such as basins, cities, reservoirs, and aquifers, water supply demand assessment, planning, and management.

Water Bankruptcy in the Land of Plenty (UNESCO-IHE Lecture Note Series)

by Franck Poupeau Hoshin Gupta Aleix Serrat-Capdevila Maria A. Sans-Fuentes Susan Harris László G. Hayde

As the American Southwest faces its deepest drought in history, this book explores the provocative notion of “water bankruptcy” with a view towards emphasizing the diversity and complexity of water issues in this region. It bridges between the narratives of growth and the strategies or policies adopted to pursue competing agendas and circumvent the inevitable. A window of opportunity provided by this current long-term drought may be used to induce change by dealing with threats that derive from imbalances between growth patterns and available resources, the primary cause of scarcity. A first of its kind, this book was developed through close collaboration of a broad range of natural scientists, social scientists, and resource managers from Europe and United States. It constitutes a collective elaboration of a transdisciplinary approach to unveiling the inner workings of how water was fought for, allocated and used in the American Southwest, with a focus on Arizona. Specifically, it offers an innovative scientific perspective that produces a critical diagnostic evaluation of water management, with a particular view to identifying risks for the Tucson region that is facing continuous urban sprawl and economic growth.

Water-Carbon Dynamics in Eastern Siberia (Ecological Studies #236)

by Takeshi Ohta Tetsuya Hiyama Yoshihiro Iijima Ayumi Kotani Trofim C. Maximov

This book discusses the water and carbon cycle system in the permafrost region of eastern Siberia, Providing vitalin sights into how climate change has affected the permafrost environment in recent decades. It analyzes the relationships between precipitation and evapotranspiration, gross primary production and runoff in the permafrost regions, which differ from those intropical and temperate forests. Eastern Siberia is located in the easternmost part of the Eurasian continent, and the land surface with underlying permafrost has developed over a period of seventy thousand years. The permafrost ecosystem has specific hydrological and meteorological characteristics in terms of the water and carbon dynamics, and the current global warming and resulting changes in the permafrost environment are serious issues in the high-latitude regions. The book is a valuable resource for students, researchers and professionals interested in forest meteorology and hydrology, forest ecology, and boreal vegetation, as well as the impact of climate change and water-carbon cycles in permafrost and non-permafrost regions.

Water Centric Sustainable Communities

by Paul Brown Vladimir Novotny Jack Ahern

The current literature compartmentalizes the complex issue of water and wastewater into its discrete components; technology, planning, policy, construction, economics, etc. Considered from the perspective of sustainability, however, water in the urban environment must be approached as a single resource that can be continuously reused and recycled. This book will be the first to capture all of the current work on this idea in a single, integrated, plan for designing the water-centric cities of the future. From new construction to the retrofitting of existing systems, this book presents the case for a new urban relationship to water, one with a more sustainable connection to the environment and the hydrological cycle. Through case studies of successfully planned and built systems around the world, the book will educate the reader about the need for a new approach to urban water management, and make the case that these changes are not only possible but imperative.

Water Challenges in Rural and Urban Sub-Saharan Africa and their Management (SpringerBriefs in Water Science and Technology)

by Joan Nyika Megersa Olumana Dinka

Sub-Saharan Africa grapples with many public health issues such as food insecurity, increased prevalence of infectious diseases, limited access to clean water supply, poor nutrition and lack of improved health services for its populace (IMF, 2021). Of all these challenges, the inaccessibility of clean water supply for both the rural and urban populace is the most pressing challenge, which has been exacerbated by extensive pollution and climate change crises. The issue of water access and supply affects both rural and urban populations. At rural areas water is accessed in yard taps and in arid regions through water kiosks managed by private owners. Among the urban poor, water access is compromised by poor supply infrastructure especially among informal settlers and risks such as contamination during the supply chain are imminent This book therefore seeks to close this knowledge gap by 1) generating a water resources inventory for Sub-Saharan Africa region, 2) exploring the water crises in both its urban and rural settings, 3) understanding the causatives of the crises and 4) suggesting viable solutions to manage the water challenges using named case studies. The aim is to improve understanding on the region’s water problems and advise scholars and policymakers on priority research areas and action plans to better water management for sustainable development.

Water Chemistry: Green Science and Technology of Nature's Most Renewable Resource

by Stanley E. Manahan

Carefully crafted to provide a comprehensive overview of the chemistry of water in the environment, Water Chemistry: Green Science and Technology of Nature's Most Renewable Resource examines water issues within the broad framework of sustainability, an issue of increasing importance as the demands of Earth's human population threaten to overwhelm t

Water, Civilisation and Power in Sudan

by Harry Verhoeven

In 1989, a secretive movement of Islamists allied itself to a military cabal to violently take power in Africa's biggest country. Sudan's revolutionary regime was built on four pillars - a new politics, economic liberalisation, an Islamic revival, and a U-turn in foreign relations - and mixed militant conservatism with social engineering: a vision of authoritarian modernisation. Water and agricultural policy have been central to this state-building project. Going beyond the conventional lenses of famine, "water wars" or the oil resource curse, Harry Verhoeven links environmental factors, development, and political power. Based on years of unique access to the Islamists, generals, and business elites at the core of the Al-Ingaz Revolution, Verhoeven tells the story of one of Africa's most ambitious state-building projects in the modern era - and how its gamble to instrumentalise water and agriculture to consolidate power is linked to twenty-first-century globalisation, Islamist ideology, and intensifying geopolitics of the Nile.

Water Civilization

by Yoshinori Yasuda

The book is comprised of three parts: 1) Discovery of the origin of rice agriculture and Yangtze River civilization in southern China was mainly based on the investigation of the Chentoushan archaeological site which is the earliest urban settlement in East Asia. The origin of rice cultivation can be traced back to 10000 BCE and the urban settlement starts at 6000 BP; 2) Collapse of the Yangtze River civilization at 4200 BP. Palaeoenvironmental studies including the analyses of annually laminated sediments in East and Southeast Asia indicate the close relationship between climate change and the rise and fall of the rice cultivating and fishing civilization ; and 3) Migration of the people from southern China to Southeast Asia after 4200 BP. Archaeological investigation of the Phum Snay site in Cambodia, including the analyses of DNA and human skeletal remains, reveal the close relationship with that of southern China indicating the migration of the people from southern China to Southeast Asia. This publication is an important contribution for understanding the environmental history of China and Cambodia in relation to the rise and fall of rice cultivating and fishing civilization which we call water civilization.

The Water, Climate, and Food Nexus: Linkages, Challenges and Emerging Solutions

by Mohamed Behnassi Abdulmalek A. Al-Shaikh Ameenah Gurib-Fakim Mirza Barjees Baig Mohammed Bahir

This contributed book, as a part of a series of CERES publications, provides a multi-regional and cross-sectoral analysis of the interlinkages, challenges, and emerging responses in the areas of water security, climate change, and food systems, especially in a context marked by severe implications of the COVID-19 pandemic, increased climate vulnerability of many regions already water stressed, and an ambitious global action aiming at curbing climate change and restoring ecosystem. In the first set of chapters, the water, food, and environmental/climate security nexus is explored theoretically and by reference to empirical research covering many regions and sectors. In another set of chapters, the impacts of climate change on water resources and water-stressed regions are identified along with their implications for food systems and security. Other chapters of the volume identify the emerging solutions to the nexus challenges, mainly adaptation and mitigation options, governance and management approaches, technological and economic solutions, innovative farming and water management practices, etc. Most chapters scheduled for publication address timely and future-oriented topics, are based on empirical research particularly done in water-constrained and climate vulnerable countries from Asia, Africa, and the MENA region, and provide policy-oriented inputs and recommendations to guide change processes at multiple scales.

Water Conservancy and Civil Construction Volume 1: Proceedings of the 4th International Conference on Hydraulic, Civil and Construction Engineering (HCCE 2022), Harbin, China, 16-18 December 2022

by Saheed Adeyinka Oke Fauziah Ahmad

Water Conservancy and Civil Construction gathers the most cutting-edge research on: Water Conservancy Projects Civil Engineering Construction Technology and Process The book is aimed at academics and engineers in water and civil engineering.

Water Conservancy and Civil Construction Volume 2: Proceedings of the 4th International Conference on Hydraulic, Civil and Construction Engineering (HCCE 2022), Harbin, China, 16-18 December 2022

by Saheed Adeyinka Oke Fauziah Ahmad

Water Conservancy and Civil Construction gathers the most cutting-edge research on: Water Conservancy Projects Civil Engineering Construction Technology and Process The book is aimed at academics and engineers in water and civil engineering.

Water Conservation, Recycling and Reuse: Issues and Challenges

by Rajeev Pratap Singh Alan S. Kolok Shannon L. Bartelt-Hunt

Water - a basic element of life, livelihood, food security and sustainable development - holds the key to global sustainability. The global water demand has been increased 3-fold in the past five decades and only 0.4% of the total world’s fresh water resources is available and accessible for use. The United Nations projected that half of all countries will face water scarcity by 2025 and more than one-third of the world’s population could be affected by water stress by 2050. The water problem is rapidly intensifying in the Asian region, and around 700 million people do not have access to safe drinking water. Similarly, according to the Intergovernmental Panel on Climate Change (IPCC) report, by 2050, more than one billion people in Asia alone are projected to experience negative impacts on water resources as a result of climate change. Climate change is also putting extra pressure on and adversely affecting the global water cycle, leading to irregular precipitation, more floods and droughts and creating an imbalance between water supply and demand. The availability of safe water is a major global concern due to the rapidly increasing population, urbanization, unsustainable consumption patterns, and rapid shifts in land use. It is believed that reduced access to freshwater will have cascading consequences that will pose threat to global food security, livelihood security, and cause large scale migration and economic and geopolitical tensions. As such, strategies for water conservation, wastewater reuse and recycling should be adopted in order to lessen the gap between supply and demand for water for different activities. This book provides readers with a better understanding of the water security challenges, and presents innovations to address these challenges, strengthen the science-policy interface, and develop institutional and human capacities for water security and sustainability.

Water-Conservation Traits to Increase Crop Yields in Water-deficit Environments

by Thomas R. Sinclair

This volume explores specific approaches that have shown to result in crop yield increases. Research on the physiological understanding of these methods has led to the development of practical applications of plant breeding approaches to genetically improve crops to achieve higher yields. Authoritative entries from crop scientists shed new light on two water-conservation traits: one that is based on an initiation of the decrease in transpiration earlier in the soil drying cycle, and the second that is based on a sensitivity of transpiration rate under high atmospheric vapor pressure deficit that results in partial stomatal closure. Both these approaches involve partial stomatal closure under well-defined situations to decrease the rate of soil water loss. Readers will be able to analyze the circumstances under which a benefit is achieved as a result of the water-limitation trait; and key discussion points in the case studies presented will help answer questions such as what species, which environments, how often will yield be benefited for various crop species? Contributions also review the genetic variation for these two traits within each crop species and the physiological basis for the expression of these traits.

Water Contamination and Health: Integration of Exposure Assessment, Toxicology, and Risk Assessment (Environmental Science And Pollution Ser. #9)

by Rhoda G.M. Wang

This volume examines every potential means of exposure to water contaminants, provides in-depth discussions on toxicology, and explains up-to-date techniques for evaluating human health risk. It develops a methodology for assessing the cumulative absorbed dose of contaminants through all routes of exposure, including ingestion, inhalation and dermal. Federal and state efforts to monitor and treat water are examined.

Water Content Estimation and Control of PEM Fuel Cell Stack and the Individual Cell in Vehicle (Springer Theses)

by Po Hong

This book focuses on water content estimation and control of the PEM fuel cell stack and the individual cell in vehicle. Firstly, the mathematical connection between polarization curve and equivalent circuit model proves importance of MEA and its feasibility to study water content. Optimizing structure of MEA realizes the internal water content recirculation of a fuel cell and improves its performance under middle or lower current density. The influence of water content on performance of MEA is quantified, and variation of equivalent circuit model is an excellent indicator of water content. Secondly, the comprehensive online AC impedance measurement method is put forward, including current excitation method, weak voltage and current signal processing method, and method for analyzing measurement error, and experiment validates measurement accuracy. The high-frequency impedance and statistical characteristic are proposed as indicator of water content. Finally, the dynamic model of the air supply system of a fuel cell engine is established and the closed-loop control of the air supply system and the water content estimation are decoupled. The experiment on a fuel cell system validates the proposed method for searching optimized operating conditions and the water management strategy.

Water Demand for Steam Electric Generation (Routledge Revivals)

by Paul H. Cootner George O. Lof

In this book, first published in 1965, the authors identify the technological opportunities and costs of water recirculation and water quality adjustment in thermal plants, relating them to the possibilities for minimal expenditure and maximum efficiency in the use of water for servicing an entire region with thermal power. Water Demand for Steam Electric Generation will be of interest to students of environmental studies.

Water Diplomacy: A Negotiated Approach to Managing Complex Water Networks (RFF Press Water Policy Series)

by Shafiqul Islam Lawrence E. Susskind

Water is the resource that will determine the wealth, welfare, and stability of many countries in the twenty-first century. This book offers a new approach to managing water that will overcome the conflicts that emerge when the interactions among natural, societal, and political forces are overlooked. At the heart of these conflicts are complex water networks. In managing them, science alone is insufficient and so is policy-making that doesn't take science into account. Solutions will only emerge if a negotiated or diplomatic approach that blends science, policy, and politics is used to manage water networks. The authors show how open and constantly changing water networks can be managed successfully using collaborative adaptive techniques to build informed agreements among disciplinary experts, water users with conflicting interests, and governmental bodies with countervailing claims. Shafiqul Islam is an engineer with over twenty-five years of practical experience in addressing water issues. Lawrence Susskind is founder of MIT's Environmental Policy and Planning Program and a leader of the Program on Negotiation at Harvard Law School. Together they have developed a text that is relevant for students and experienced professionals working in a variety of engineering, science, and applied social science fields. They show how new thinking about water conflict can replace the zero-sum battles that pit experts, politicians, and stakeholders against each other in counter-productive ways. Their volume not only presents the key elements of a theory of water diplomacy; it includes excerpts and commentary from more than two dozen seminal readings as well as practice exercises that challenge readers to apply what they have learned.

Water Distribution System Monitoring: A Practical Approach for Evaluating Drinking Water Quality, Second Edition

by Abigail F. Cantor

Updated throughout for this new edition, Water Distribution System Monitoring describes the latest water quality monitoring approaches, techniques, and equipment that will assist water utilities for compliance with the "Lead and Copper Rule" as well as address numerous other water quality issues. Water quality data are obtained using the appro

Water Dynamics in Plant Production (Cabi Publishing Ser.)

by Wilfried Ehlers Michael Goss

Water is the most basic essential for plant growth; an inadequate supply causes severe problems, as plants rely on the water transmitted by soil to meet their physiological and nutritional needs. Since the first edition was published, flooding and droughts throughout the world have made water an even more topical subject, as the importance and instability of our water supplies have been brought to the forefront of daily life. This new edition of Water Dynamics in Plant Production focuses on the dynamics of water through the hydrologic cycle and the associated mechanisms that plants employ to optimize growth and development. It describes the basic scientific principles of water transport in the soil-plant atmosphere continuum, and explains the linkage between transpirational water use and dry matter production. Paying particular attention to the various agronomic strategies for adaptation to climate-driven limitations of water resources, the efficiency of water use in plant production and in achieving an economic yield is presented in detail. This book offers a multidisciplinary introduction to the fundamentals and applications of water dynamics in natural and managed ecosystems. Including text boxes throughout, as well as online supplementary material, it provides an essential state of-the-art resource for students and researchers of soil and plant science, hydrology and agronomy. This book is enhanced with supplementary resources. Access free short answer questions, discussion points and multiple choice questions here.

Refine Search

Showing 64,876 through 64,900 of 66,452 results