Download or read book Environmental Effects of Dredging Guide to Selecting a Dredge for Minimizing Resuspension of Sediment written by and published by . This book was released on 1986 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: This technical note contains assessments of conventional and special-purpose dredges in removing sediment with minimal sediment resuspension. If sediment resuspension is a critical factor in dredging areas of contaminated material, the following guidance will aid in specifying the dredge and operating conditions. Investigations were conducted as part of the Corps of Engineers Improvement of Operations and Maintenance Techniques (IOMT) Research Program to evaluate the resuspension of sediment into the water column due to dredging operations. Laboratory, field, and literature studies have been used to define the sediment resuspension characteristics of most conventional and several special-purpose dredges. The natural hydrophobic tendency of most organic contaminants and the high sediment-sorptive capacity for inorganic contaminants limits release to the soluble forms and makes the simple measure of sediment resuspension during dredging a relative measure of the potential for contaminant release.
Download or read book Guide to Selecting a Dredge for Minimizing Resuspension of Sediment Environmental Effects of Dredging written by and published by . This book was released on 1986 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: This technical note contains assessments of conventional and special-purpose dredges in removing sediment with minimal sediment resuspension. If sediment resuspension is a critical factor in dredging areas of contaminated material, the following guidance will aid in specifying the dredge and operating conditions. Investigations were conducted as part of the Corps of Engineers' Improvement of Operations and Maintenance Techniques (IOMT) Research Program to evaluate the resuspension of sediment into the water column due to dredging operations. Laboratory, field, and literature studies have been used to define the sediment resuspension characteristics of most conventional and several special-purpose dredges. The natural hydrophobic tendency of most organic contaminants and the high sediment-sorptive capacity for inorganic contaminants limits release to the soluble forms and makes the simple measure of sediment resuspension during dredging a relative measure of the potential for contaminant release.
Download or read book Selecting and Operating Dredging Equipment written by and published by . This book was released on 1993 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dredging induced Near field Resuspended Sediment Concentrations and Source Strengths written by Michael A. Collins and published by . This book was released on 1995 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Effects of Dredging Sediment Resuspension by Selected Dredges written by and published by . This book was released on 1988 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: The size and concentration of sediment plumes measured in field studies of selected dredging equipment are described. This information is useful when sediment resuspension must be minimized because of adverse environmental impacts which may include the release of sediment-associated chemical contaminants. The information presented here is intended to supplement and update information given in a previous technical note on the same topic (Hayes 1986a). Dredging operations may be required to comply with in-stream State water quality standards based on maximum allowable concentrations of inorganic and organic compounds. Although the majority of materials requiring maintenance dredging In the United States Is uncontaminated, the removal of contaminated sediments (estimated to be less than 10 percent of maintenance materials) poses a serious problem. Hence, a project to study the potential for contaminant release during dredging has been initiated through a field studies program. The field studies described herein were conducted by the Waterways Experiment Station under the Improvement of Operations and Maintenance Techniques (IOMT) research program and in cooperation with other US Army Engineer Districts to evaluate the sediment resuspension characteristics of selected dredges (McLellan et al., in preparation).
Download or read book Sedimentation Control to Reduce Maintenance Dredging of Navigational Facilities in Estuaries written by National Research Council and published by National Academies Press. This book was released on 1987-02-01 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guide to Selecting a Dredge for Minimizing Resuspension of Sediment written by Donald F. Hayes and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sediment Resuspension by Selected Dredges Environmental Effects of Dredging written by and published by . This book was released on 1988 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The size and concentration of sediment plumes measured in field studies of selected dredging equipment are described. This information is useful when sediment resuspension must be minimized because of adverse environmental impacts which may include the release of sediment-associated chemical contaminants. The information presented here is intended to supplement and update information given in a previous technical note on the same topic (Naves 1986a).
Download or read book Handbook of Dredging Engineering written by John B. Herbich and published by McGraw-Hill Professional Publishing. This book was released on 2000 with total page 1528 pages. Available in PDF, EPUB and Kindle. Book excerpt: Authoritative, up-to-date guide to dredging theory and practice. From selecting the right equipment, to evaluating environmental impact, to bidding on a project, Handbook of Dredging Engineering, Second Edition, is the last word on modern hydraulic dredging. Edited by John B. Herbich, with contributions by well-know experts in the field, the Handbook examines basic fluid mechanics; dredge pumps; dredging equipment; sediment; pipeline transport of solids; dredging methods; disposal and placement of dredged material; numerical models for predicting the fate of dredged material placed in open water; environmental effects of dredging activities; instrumentation and automation; and project planning. This vital new edition covers major advances made over the last seven years. Three chapters are new to this edition: numerical models for predicting the fate of dredged material...subaqueous capping of contaminated sediment...and removal of contaminated sediments by dredging, with illustrative case studies.
Download or read book Environmental Aspects of Dredging written by R. N. Bray and published by CRC Press. This book was released on 2008-03-10 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: Expanding a port, deepening a navigation channel or creating new land for development, introduces changes to our physical, social, economic and political environment. Changes may result from events during the construction process, or relate to the nature of the completed structure. Changes can be positive or negative, short-term or long-term, and may affect the immediate vicinity of the project or a larger geographical area. Predicting and assessing all possible effects of a planned dredging activity in a scientifically-sound and reliable manner is essential, so that appropriate control measures can be taken to avoid or mitigate unwelcome impacts. This book provides guidance for a complete holistic environmental evaluation procedure and for the design and implementation of environmental control measures. The book is of particular interest to engineers, government agencies and port authorities, as well as civil engineering consultants and contractors involved in planning and designing dredging, maritime infrastructure and fluvial projects.
Download or read book Proceedings of San Francisco District Navigation Workshop May 19 21 1987 written by and published by . This book was released on 1987 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Contaminated Marine Sediments written by National Research Council and published by National Academies Press. This book was released on 1989-02-01 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt: The pervasive, widespread problem of contaminated marine sediments is an environmental issue of national importance, arising from decades of intentionally and unintentionally using coastal waters for waste disposal. This book examines the extent and significance of the problem, reviews clean-up and remediation technologies, assesses alternative management strategies, identifies research and development needs, and presents the committee's major findings and recommendations. Five case studies examine different ways in which a variety of sediment contamination problems are being handled.
Download or read book Remediation of Contaminated Sediments written by and published by . This book was released on 1991 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sediment Dredging at Superfund Megasites written by National Research Council and published by National Academies Press. This book was released on 2007-10-30 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: Some of the nation's estuaries, lakes and other water bodies contain contaminated sediments that can adversely affect fish and wildlife and may then find their way into people's diets. Dredging is one of the few options available for attempting to clean up contaminated sediments, but it can uncover and re-suspend buried contaminants, creating additional exposures for wildlife and people. At the request of Congress, EPA asked the National Research Council (NRC) to evaluate dredging as a cleanup technique. The book finds that, based on a review of available evidence, dredging's ability to decrease environmental and health risks is still an open question. Analysis of pre-dredging and post-dredging at about 20 sites found a wide range of outcomes in terms of surface sediment concentrations of contaminants: some sites showed increases, some no change, and some decreases in concentrations. Evaluating the potential long-term benefits of dredging will require that the U.S. Environmental Protection Agency step up monitoring activities before, during and after individual cleanups to determine whether it is working there and what combinations of techniques are most effective.
Download or read book Dredging Remediation and Containment of Contaminated Sediments written by K. R. Demars and published by ASTM International. This book was released on 1995 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the June 1994 title symposium held in Montreal, Quebec, Canada, and sponsored by the ASTM Committee on Soil and Rock. Papers identify and describe tests, methods, procedures, and materials used in support of dredging, treatment, and containment of contaminated sediments, and focus on
Download or read book Boston Harbor Navigation Improvement and Berth Dredging Project written by and published by . This book was released on 1995 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book DREDGING MANAGEMENT PRACTICES FOR THE ENVIRONMENT a structured selection approach written by and published by PIANC. This book was released on 2009 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
