Residence Times and Nitrate Transport in Ground Water Discharging to Streams in the Chesapeake Bay Watershed PDF Download
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Author:
Publisher:
ISBN:
Category : Groundwater
Languages : en
Pages : 218
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Book Description
Author:
Publisher:
ISBN:
Category : Groundwater
Languages : en
Pages : 218
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Book Description
Author: Chris Binnie
Publisher: IWA Publishing
ISBN: 1843390892
Category : Science
Languages : en
Pages : 649
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Book Description
Water Reuse: An International Survey of current practice, issues and needs examines water reuse practices around the world from different perspectives. The objective is to show how differently wastewater reuse is conceived and practised around the world as well as to present the varied needs and possibilities for reusing wastewater. In the first section water reuse practices around the world are described for regions having common water availability, reuse needs and social aspects. The second section refers to the “stakeholders” point of view. Each reuse purpose demands different water quality, not only to protect health and the environment but also to fulfil the requirements of the specific reuse. Reuses considered are agricultural, urban agriculture as a special case of the former, municipal and industrial. Alongside these uses, the indirect reuse for human consumption through aquifer recharge is also discussed. The third section deals with emerging and controversial topics. Ethical and economical dilemmas in the field are presented as a subject not frequently addressed in this field. The role of governments in respect of public policy in reuse is discussed as well as the different international criteria and standards for reusing wastewater. The importance of public acceptance and the way to properly handle it is also considered. The fourth section of the book presents contrasting case studies; typical situations in the developed world (Japan and Germany) are compared to those in developing countries (Pakistan and Brazil) for agricultural and industrial reuse. Indirect planned reuse for human consumption (Germany) is compared with an unplanned one (Mexico). The Windhoek, Namibia case study is presented to emphasize why if the direct reuse of wastewater for human consumption has been performed with success for more than 35 years it is still the only example of this type around the world. To illustrate the difficulties of having a common framework for regulating water reuse in several countries, the Mediterranean situation is described. Other case studies presented refer to the reuse situation in Israel, Spain, Cameroon, Nepal and Vietnam, these latter countries being located in water rich areas. This book will be an invaluable information source for all those concerned with water reuse including water utility managers, wastewater policy makers and water resources planners as well as researchers and students in environmental engineering, water resources planning and sanitary engineering. Scientific and Technical Report No. 20
Author:
Publisher: CRC Press
ISBN: 9781439832622
Category : Science
Languages : en
Pages : 524
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Book Description
Students of conservation encounter some of the most complex issues on our planet. The resolution of existing problems become more complex when humans create further stresses on the natural balance. Moulton and Sanderson brought the challenging issues in wildlife conservation into greater clarity in Wildlife Issues in a Changing World. The Second Edition of this definitive reference focuses more closely on the causes of wildlife issues. The examination of Jared Diamond's "Evil Quartet" (the four principal causes of extinction) provides a framework for categorizing and resolving these issues. The authors encourage the use of the scientific method basis for resolution - especially where environmental laws have failed. The three new chapters provide further counterpoints to preconceived notions. A two-part history of wildlife in the U.S. shows how wildlife had already been decimated by the year 1900. "Can Humans Manage Wildlife?" questions efforts to revive endangered species, acts which may inadvertently jeopardize the survival of other life. Viewing the natural order from prehistoric times to the present, Wildlife Issues in a Changing World, Second Edition gives students and instructors an all-encompassing introduction to past relations between humans and nature; explorations of current threats to species and their habitats; and recent "novel solutions," where humanity and industry have made adjustments to protect the natural order. Professionals will also find invaluable reminders of the importance of their work - the continuation and endurance of wildlife everywhere on Earth.
Author: Sergi Sabater
Publisher: Elsevier
ISBN: 0128118008
Category : Science
Languages : en
Pages : 406
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Book Description
Multiple Stressors in River Ecosystems: Status, Impacts and Prospects for the Future provides a comprehensive and current overview on the topic as written by leading river scientists who discuss the relevance of co-occurring stressors for river ecosystems. River ecosystems are subject to multiple stressors that threaten their ecological status and the ecosystem services they provide. This book updates the reader's knowledge on the response and management of river ecosystems to multi-stress situations occurring under global change. Detailing the risk for biodiversity and functioning in a case-study approach, it provides insight into methodological issues, also including the socioeconomic implications. - Presents a case study approach and geographic description on the relevance of multiple stressors on river ecosystems in different biomes - Gives a uniquely integrated perspective on different stressors, including their interactions and joint effects, as opposed to the traditional one-by-one approach - Compiles state-of-the-art methods and technologies in monitoring, modeling and analyzing river ecosystems under multiple stress conditions
Author: Jeffrey R. Powell
Publisher:
ISBN:
Category : Fish communities
Languages : en
Pages : 64
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Book Description
Author: Avril L. de la Cretaz
Publisher: CRC Press
ISBN: 1420008722
Category : Science
Languages : en
Pages : 342
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Book Description
Filling a long-standing need for a desk reference that synthesizes current research, Land Use Effects on Streamflow and Water Quality in the Northeastern United States reviews and discusses the impact of forest management, agriculture, and urbanization. The book provides a gateway to the diverse scientific literature that is urgently needed
Author: Hrissi K. Karapanagioti
Publisher: IWA Publishing
ISBN: 1789060028
Category : Technology & Engineering
Languages : en
Pages : 237
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Book Description
This book covers the topic of microplastics in water and wastewater. The chapters start with introductory issues related to the growing interest in the scientific community on microplastics and the human water cycle and point out where the microplastics could interact with water. The subsequent chapters examine evidence of the microplastic presence in freshwater, such as in both rivers and lakes, in freshwater biota, and hazardous chemicals associated with microplastics in such systems. Another set of chapters discuss the presence of microplastics in wastewater: their sources; their transfer through a wastewater treatment plant; the concentration of microplastics in effluents throughout the world; the plastic biomedia used in wastewater treatment plants and the effect on the surrounding environment of effluent wastewater pipes. These chapters also discuss the sampling methods, the sample treatment and analysis techniques used so far for microplastics in wastewater. Additionally, the presence of microplastics in sewage sludge and in soils irrigated with wastewater or fertilized with sludge are discussed. The possible impact of plastics and their additives on plants, microalgae, and humans are reviewed and presented in a critical way. Finally, a chapter summarizes all the relevant regulations and initiatives that point to the necessity of a global directive for the protection of the environment from plastic and microplastic pollution. The topic of microplastics in freshwater systems and in wastewater has scarcely been studied and requires more attention. Microplastics in Water and Wastewater aims to bring these initial findings to the attention of a broader audience and especially to operators and managers of freshwater and wastewater systems. It will also be helpful to people already aware of the marine debris problem to understand the sources of microplastics in the oceans, from freshwater systems and wastewater treatment plants.
Author: World Health Organization
Publisher: World Health Organization
ISBN: 9241546689
Category : Medical
Languages : en
Pages : 697
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Book Description
This publication provides a structured approach to analyzing hazards to groundwater quality, assessing the risk they may cause for a specific supply, setting priorities in addressing these, and developing management strategies for their control. This book summarizes which pathogens and chemicals are relevant to human health, how they are transported, reduced, removed or retarded; provides practical guidance on characterizing the drinking-water catchment area and assessing potential health hazards; provides guidance on prioritising both hazards and management responses; presents key information on potential management actions and explains their integration into a comprehensive Water Safety Plan from catchment to consumer; and describes policy, land-use planning and implementation of pollution prevention, groundwater, with overviews of specific management approaches applicable to agriculture, sanitation, industry, mining, military sites, waste disposal and traffic.--Publisher's description.
Author: Eric Craswell
Publisher: Springer Science & Business Media
ISBN: 1402055919
Category : Technology & Engineering
Languages : en
Pages : 370
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Book Description
This book presents papers from an international conference, held in Bonn, Germany in February 2005, that dealt with integrated water resources management in industrialized and developing countries. The papers detail such emerging concepts as blue and green water, virtual water, the water footprints of nations, multi-agent modeling, linkages between water and biodiversity, and social learning and adaptive management.
Author: Pedro Martinez-Santos
Publisher: CRC Press
ISBN: 1138001430
Category : Law
Languages : en
Pages : 324
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Book Description
Integrated water resources management advocates a coordinated approach for managing water resources in a way that balances social and economic needs with concern for the environment. While potentially useful, integrated water management is also controversial. Supporters believe that the multi-dimensional nature of water can only be understood and managed from a holistic perspective, while critics often argue that integrated water management lacks suffi ciently well-defi ned rules for its practical implementation. This book, written by academics, users and practitioners, provides a down-to-earth approach to the ideal of integrated water resources management, drawing from conceptual frameworks and real-life practice to identify the key aspects that are yet to be resolved. As such, it examines the role of water accounting, food trade, environmental externalities and intangible values as key aspects whose consideration may help the water management community move forward. Overall, integrated water resources management is perceived to be a useful utopia, whose value lies more in the steps that need to be taken to make it a reality than in achieving its ever-elusive end goal.
