Desalination and Water Security


Book Description

Desalination is to the water industry what renewables are to the electricity sector. However, unlike renewables, the former is being deployed in a quiet revolution away from public glare. This book provides a holistic view of desalination, highlighting the important role this technology can play in providing safe access to water across the globe. It describes the context for this technology to flourish in the coming decades. It discusses the pressures on freshwater resources and the key role the desalination industry plays as it moves from a good-to-have provider today to a must-have mainstream water solution in the future. The book explores the vital elements of the desalination industry, including the winning technologies and how further technological developments will reduce costs and increase deployment into new areas. It also addresses the energy used and the key environmental issues of carbon dioxide emissions and brine waste production. Using a series of country case studies, the book illustrates how desalination can supplement natural water resources in different environments and for different purposes, and how it is supporting domestic and economic activity. Providing a forward-thinking assessment, the book considers developments over the next 30 years as climate change impacts become even more apparent. This book will be of great interest to those working to alleviate water scarcity and improve water security. It will also be of interest to those in water resource management, water policy and regulation, water science, and environmental engineering.




Water Pollution and Remediation: Heavy Metals


Book Description

Pollution of waters by toxic metals is accelerating worldwide due to industrial and population growth, notably in countries having poor environmental laws, resulting in many diseases such as cancer. Classical remediation techniques are limited. This books reviews new, advanced or improved techniques for metal removal, such as hybrid treatments, nanotechnologies and unconventional adsorbents, e.g. metal-organic frameworks. Contaminants include rare earth elements, arsenic, lead, cadmium, chromium, copper and effluents from the electronic, textile, agricultural and pharmaceutical industries.




Management of Concentrate from Desalination Plants


Book Description

Management of Concentrate from Desalination Plants provides an overview of the alternatives for managing concentrate generated by brackish water and seawater desalination plants, as well as site-specific factors involved in the selection of the most viable alternative for a given project, and the environmental permitting requirements and studies associated with their implementation. The book focuses on widely used alternatives for disposal of concentrate, including discharge to surface water bodies; disposal to the wastewater collection system; deep well injection; land application; evaporation; and zero liquid discharge. Direct discharge through new outfall; discharge through existing wastewater treatment plant outfall; and co-disposal with the cooling water of existing coastal power plant are thoroughly described, and design guidance for the use of these concentrate disposal alternatives is presented with engineers and practitioners in the field of desalination in mind. Key advantages, disadvantages, environmental impact issues, and possible solutions are presented for each discharge alternative. Easy-to-use graphs depicting construction costs as a function of concentrate flow rate are provided for all key concentrate management alternatives. - Gives a critical overview of the latest practices and technological advancements in managing concentrate - Discusses the relationship between concentrate quality and quantity and other desalination processes - Provides design and cost guidance information to assist practitioners with the selection and sizing of the most commonly practiced concentrate disposal alternatives




Water Security


Book Description

The world is on the brink of the greatest crisis it has ever faced: a spiraling lack of fresh water. Groundwater is drying up, even as water demands for food production, for energy, and for manufacturing are surging. Water is already emerging as a headline geopolitical issue—and worsening water security will soon have dire consequences in many parts of the global economic system. Directed by UN Secretary General Ban Ki-Moon at the 2008 Davos Annual Meeting, the World Economic Forum assembled the world’s foremost group of public, private, non-governmental-organization and academic experts to examine the water crisis issue from all perspectives. The result of their work is this forecast—a stark, non-technical overview of where we will be by 2025 if we take a business-as-usual approach to (mis)managing our water resources. The findings are shocking. Perhaps equally stunning are the potential solutions and the recommendations that the group presents. All are included in this landmark publication. Water Security contains compelling commentary from leading decision-makers, past and present. The commentary is supported by analysis from leading academics of how the world economy will be affected if world leaders cannot agree on solutions. The book suggests how business and politics need to manage the energy-food-water-climate axis as leaders negotiate the details of the climate regime that replace Kyoto Protocols.




Review of the Desalination and Water Purification Technology Roadmap


Book Description

The Bureau of Reclamation and Sandia National Laboratories jointly developed the Roadmap to serve as a strategic research pathway for desalination and water purification technologies to meet future water needs. The book recommends that the Roadmap include a sharper focus on the research and technological advancements needed to reach the long-term objectives. The book also suggests that the environmental, economic, and social costs of energy required by increased dependence on desalination be examined. Strategies for implementing the Roadmap initiative are provided.




Integrated Water Resources Management in Water-scarce Regions


Book Description

The research project CuveWaters developed and implemented adapted technologies and accompanying measures to support the national process towards an Integrated Water Resources Management (IWRM). The aim is to give people in the Cuvelai-Etosha Basin reliable access to clean water over the long term, thus enhancing their livelihood and health, and to create job opportunities. IWRM relies on solutions that use various sources, types and qualities of water for different purposes. CuveWaters implemented pilot plants for rain- and floodwater harvesting, groundwater desalination, as well as facilities for sanitation and water reuse. Technical components of the project were framed by societal and scientific components. Integrated Water Resources Management in Water-scarce Regions provides a comprehensive view on the complexity and interconnectedness of findings and conclusions regarding the principle strategic approach within the CuveWaters project’s concept. The book aims to present the work of technical, social and natural scientists but also of media professionals: It gives thematically focussed details on the three technology-based solutions which go beyond mere technical considerations and embed this into the overarching process towards IWRM in Namibia. Finally, it critically addresses lessons learnt and limits of projects in the context of research for implementation. This book is of great value to experts, professionals and also students and academics in the areas of water management, technology development and implementation and transdisciplinary science.




Water Safety, Security and Sustainability


Book Description

This book focuses on threats, especially contaminants, to drinking water and the supply system, especially in municipalities but also in industrial and even residential settings. The safety, security, and suitability landscape can be described as dynamic and complex stemming from necessity and hence culpability due to the emerging threats and risks, vis-a-vis globalization resulting in new forms of contaminants being used due to new technologies. The book provides knowledge and guidance for engineers, scientists, designers, researchers, and students who are involved in water, sustainability, and study of security issues. This book starts out with basics of water usage, current statistics, and an overview ofwater resources. The book then introduces different scenarios of safety and security and areas that researchers need to focus. Following that, the book presents different types of contaminants – inadvertent, intentional, or incidental. The next section presents different methodologies of contamination sensing/detection and remediation strategies as per guidance and standards set globally. The book then concludes with selected chapters on water management, including critical infrastructure that is critical to maintaining safe water supplies to cities and municipalities. Each chapter includes descriptive information for professionals in their respective fields. The breadth of chapters offers insights into how science (physical, natural, and social) and technology can support new developments to manage the complexity resident within the evolving threat and risk landscape.




Arab Water Security


Book Description

This book explores the national security implications of the Arab Gulf states' reliance on desalination plants, and their related infrastructure. It provides the first systematic and comprehensive discussion of current and future threats to the supply of freshwater from a desalination plant, including actual and virtual attacks by terrorists, mechanical failure, contamination, sabotage by aggrieved workers, and attacks relating to regional conflicts, as well as their vulnerability to natural disasters. It also provides a detailed analysis of the effects of a potential disruption to the water supply, and proposes possible measures, both political and technological, that can be used to increase resilience to these threats. Arab Water Security is a valuable reference for researchers and graduate students, as well as for policy makers and professionals, interested in water security, natural resources, and environmental terrorism.




Solar Desalination for the 21st Century


Book Description

This book of the NATO Science Series presents the state-of-the-art of Desalination Technologies driven by Renewable Energies, highlighting the results achieved in the research field and presenting the potentialities of such technologies. It provides an up-to-date point-of-reference on the topic, giving an extensive overview of the current status of solar desalination, both from the research and industrial point of view.




Environmental ScienceBites


Book Description

This book was written by undergraduate students at The Ohio State University (OSU) who were enrolled in the class Introduction to Environmental Science. The chapters describe some of Earth's major environmental challenges and discuss ways that humans are using cutting-edge science and engineering to provide sustainable solutions to these problems. Topics are as diverse as the students, who represent virtually every department, school and college at OSU. The environmental issue that is described in each chapter is particularly important to the author, who hopes that their story will serve as inspiration to protect Earth for all life.