Feasibility Study Of General Crust Management As A Technique For Increasing Capacity Of Dredged Material Containment Areas
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Feasibility Study Of General Crust Management As A Technique For Increasing Capacity Of Dredged Material Containment Areas
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Author : Kenneth Warren Brown
language : en
Publisher:
Release Date : 1977
Feasibility Study Of General Crust Management As A Technique For Increasing Capacity Of Dredged Material Containment Areas written by Kenneth Warren Brown and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1977 with Dredges categories.
The influence of meteorological conditions and the physical, chemical, and mineralogical properties of fine-grained dredged material on the formation of crusts resulting from evaporative drying in confinement areas was evaluated. After decantation, the moisture content of the surface layer is equivalent to about 2.5 times the liquid limit. Evaporation of moisture during the first stage of drying is nearly the same as that from an open pan until the moisture content decreases to about 1.8 times the liquid limit. After this, drying proceeds at a rate dependent on the transport of moisture to the surface. As the material desiccates, surface cracks open. The volume shrinkage is equivalent to the volume of water evaporated as the crust forms, and evidence is given that the volume change is irreversible. Rainfall is shed from the crust and drains into the cracks, from which it can run off if channels are provided to the outflow weir. Management practices, including stirring and the removal of a thin layer of crust, produced only small increases in evaporation rate for a few days. Systems were developed to dig drainage trenches in the confinements and to remove the consolidated crust. A small dredge appears to offer the most promise for cutting deep or wide surface drainage ditches.
Containment Area Management To Promote Natural Dewatering Of Fine Grained Dredged Material
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Author : Michael J. Bartos
language : en
Publisher:
Release Date : 1977
Containment Area Management To Promote Natural Dewatering Of Fine Grained Dredged Material written by Michael J. Bartos and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1977 with Dredging spoil categories.
Management Of Bottom Sediments Containing Toxic Substances
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Author :
language : en
Publisher:
Release Date : 1977
Management Of Bottom Sediments Containing Toxic Substances written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1977 with Dredging spoil categories.
Management Of Bottom Sediments Containing Toxic Substances
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Author : Spencer A. Peterson
language : en
Publisher:
Release Date : 1977
Management Of Bottom Sediments Containing Toxic Substances written by Spencer A. Peterson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1977 with Mercury categories.
Selected Water Resources Abstracts
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Author :
language : en
Publisher:
Release Date : 1978
Selected Water Resources Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with Hydrology categories.
Ecological Research Series
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Author :
language : en
Publisher:
Release Date : 1977
Ecological Research Series written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1977 with Ecological risk assessment categories.
Effects Of Cyanophage Sam 1 Upon Microcystis Aeruginosa
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Author : D. L. Parker
language : en
Publisher:
Release Date : 1977
Effects Of Cyanophage Sam 1 Upon Microcystis Aeruginosa written by D. L. Parker and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1977 with Algae categories.
Impacts Of Navigational Dredging On Fish And Wildlife
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Author : Kenneth O. Allen
language : en
Publisher:
Release Date : 1980
Impacts Of Navigational Dredging On Fish And Wildlife written by Kenneth O. Allen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with Dredges categories.
Management Plan For The Disposal Of Contaminated Material In The Craney Island Dredged Material Management Area
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Author :
language : en
Publisher:
Release Date : 1993
Management Plan For The Disposal Of Contaminated Material In The Craney Island Dredged Material Management Area written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Dredging categories.
The Craney Island Management Plan was developed to extend the life of the Craney Island Dredged Material Management Area (CIDMMA). The CIDMMA is used to dispose maintenance and new work dredged material from the project area. With current practice, CIDMMA would reach ultimate capacity by the year 2000. If, however, suitable material is barged to the sea and only contaminated material is placed in the facility (Restricted Use Program), then the life of the facility can be extended. Two tasks were addressed in this study: (a) determine service life under Restricted Use and (b) determine contaminant losses and conduct a Comprehensive Analysis of Migration Pathways (CAMP) expected to occur under Restricted Use. The results showed that the service life of the CIDMMA could be extended under Restrictive Use for approximately 140 years under baseline coniditions or 90 years under Worst Case conditions. The CAMP analysis was conducted along three major contaminant migration pathways (effluent, leachate, and volatile). Effluent was the most significant pathway for metal losses and volatilisation and for polynuclear aromatic hydrocarbon (PAH) losses. Leachate losses under a fully dewatered condition would not exceed effluent losses for some metals. PAH losses for a fully dewatered condition would not exceed effluent losses.
Fws Obs
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Author :
language : en
Publisher:
Release Date : 1980
Fws Obs written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with Ecology categories.