Environmental Impacts of Dredging and Sediment Disposal PDF Download
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Author:
Publisher:
ISBN:
Category : Dredging
Languages : en
Pages : 222
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Book Description
Author:
Publisher:
ISBN:
Category : Dredging
Languages : en
Pages : 222
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Book Description
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309077958
Category : Science
Languages : en
Pages : 352
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Book Description
Author:
Publisher: UN
ISBN: 9789280732672
Category : Political Science
Languages : en
Pages : 0
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Book Description
Metal recycling is a complex business that is becoming increasingly difficult! Recycling started long ago, when people realized that it was more resource- and cost-efficient than just throwing away the resources and starting all over again. In this report, we discuss how to increase metal-recycling rates - and thus resource efficiency - from both quantity and quality viewpoints. The discussion is based on data about recycling input, and the technological infrastructure and worldwide economic realities of recycling. Decision-makers set increasingly ambitious targets for recycling, but far too much valuable metal today is lost because of the imperfect collection of end-of-life (EoL) products, improper practices, or structural deficiencies within the recycling chain, which hinder achieving our goals of high resource efficiency and resource security, and of better recycling rates.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309083400
Category : Science
Languages : en
Pages : 137
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Book Description
Concerns over the potential ecological effects of fishing have increased with the expansion of fisheries throughout the marine waters of the United States. Effects of Trawling and Dredging on Seafloor Habitat describes how assessment of fishing impacts depends on gear type, number and location of bottom tows, and the physical and biological characteristics of seafloor habitats. Many experimental studies have documented acute, gear-specific effects of trawling and dredging on various types of habitat. These studies indicate that low mobility, long-lived species are more vulnerable to towed fishing gear than short-lived species in areas where the seabed is often disturbed by natural phenomena. Trawling and dredging may also change the composition and productivity of fish communities dependent on seafloor habitats for food and refuge. The scale of these impacts depends on the level of fishing effort. This volume presents color maps of fishing effort for all regions with significant bottom trawl or dredge fisheries-the first time that such data has been assembled and analyzed for the entire nation.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 130
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Book Description
Author:
Publisher:
ISBN:
Category : Contamination (Technology)
Languages : en
Pages : 54
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Book Description
Author: Wim Salomons
Publisher: Springer Science & Business Media
ISBN: 3642613624
Category : Science
Languages : en
Pages : 434
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Book Description
Dredged Material and Mine Tailings are two of the same thing once they are deposited on land: they must be safe-guarded, wash-out must be prevented, and they must be protected by a plantcover. This comprehensive two-volume treatise covers both important aspects of their management: Environmental Management of Solid Waste turns to the practical applications, such as prediction, restoration and management, while in Chemistry and Biology of Solid Waste the principles and assessment are scientifically studied and discussed. Previously, dredged material was a commodity, it could be sold as soil, e. g. to gardeners. In the meantime, dredged material from the North Sea (e.g. the Rotterdam or Amsterdam harbor) must be treated as hazardous waste. Many environmentalists, managers and companies do not know how to solve the inherent problems. This new work deals with the chemical, physical and biological principles; the biological and geochemical assessment; the prediction of effects and treatment; and finally, with restoration and revegetation. It is written by many leading scientists in the various fields, and will prove invaluable for managers and politicians who are concerned with the present environmental situation.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309036283
Category : Science
Languages : en
Pages : 223
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Book Description
Are the nation's ports adequate for our present and future needs? This volume points out that no significant new deep-water construction has occurred for a decade, and provides the information and analysis needed to goad the ports and the federal government into action. The book asks three questions: Is additional port construction and maintenance dredging needed now or over the next 20 years? What would prevent dredging if it is needed? What alternatives could make additional dredging possible? The book identifies several problems in dredging ports, including the long interval between a decision to deepen a port and the time the alterations are complete. The United States needs to speed port construction to meet changing needs, and the committee recommends that we prepare for future needs by dredging now.
Author:
Publisher:
ISBN:
Category : HEC-6 (Computer program)
Languages : en
Pages : 18
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Book Description
Author: United States. Environmental Protection Agency. Sediment Oversight Technical Committee
Publisher:
ISBN:
Category : Environmental protection
Languages : en
Pages : 234
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Book Description
This document is a compendium of scientifically valid and accepted methods that can be used to assess sediment quality and predict ecological impacts...the intent here is to provide the most useful overall measures or predictors of ecological impacts currently in use rather than procedures that may have limited application outside of a particular regulatory framework... parag The information provided in the compendium on the relative strengths and weaknesses of the different assessment methods can provide assistance in selecting the appropriate methods.
