Author: Clifford L. TruittPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Engineering Considerations for Capping Subaqueous Dredged Material Deposits: Design Concepts and Placement Techniques
Author: Clifford L. TruittEnvironmental Effects of Dredging: Engineering Considerations for Capping Subaqueous Dredged Material Deposits -- Design Concepts and Placement Techniques
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 11
Book Description
In order to ensure the effectiveness of capping, such projects cannot be treated simply as a modification of conventional disposal practices. A capping project involves an engineered structure with design and construction requirements that must be met, verified, and maintained over the design life. This is not to say that traditional equipment and operational methods cannot be applied to capping contaminated materials. In fact, they have been used with good success. (MM).
Engineering Considerations for Capping Subaqueous Dredged Material Deposits -- Background and Preliminary Planing
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 14
Book Description
The following two technical notes present information applicable to planning and constructing dredged material capping projects: EEDP-O1-3 Background and Preliminary Planning EEDP-O1-4 Design Concepts and Placement Techniques This first note identifies and reviews field experiences with subaqueous capping of dredged material and discusses aspects of site selection.
Dredging Research
Author: Guidance for Subaqueous Dredged Material Capping
Author: Michael R. PalermoPublisher:
ISBN:
Category : Contaminated sediments
Languages : en
Pages : 598
Book Description
When dredged materials proposed for open-water placement are found to require isolation form the benthic environment due to the presence of contaminants, capping may he appropriate for consideration as a management action. This report is intended to provide technical guidance for evaluation of capping projects. From a technical perspective, this guidance is applicable to dredged material capping projects in ocean waters as well as inland and near-coastal waters. Subaqueous dredged material capping is the controlled, accurate placement of contaminated dredged material at an appropriately selected open-water placement site, followed by a covering or cap of suitable isolating material. A number of capping operations under a variety of placement conditions have been accomplished. Conventional placement equipment and techniques are frequently used for a capping project, but these practices must be controlled more precisely than for conventional placement. Level bottom capping (LBC) is defined as the placement of a contaminated material in a mounded configuration and the subsequent covering of the mound with clean sediment. Contained aquatic disposal is similar to LBC but with the additional provision of some form of lateral confinement (e.g., placement in natural bottom depressions, constructed subaqueous pits, or behind subaqueous berms) to minimize spread of the materials on the bottom.
Environmental Effects of Dredging, Technical Notes
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 8
Book Description
Biomagnification of Contaminants in Aquatic Food Webs as a Result of Open-Water Disposal of Dredged Material ; Fate of Dredged Material During Open-Water Disposal; Engineering Considerations for Capping Subaqueous Dredged Material Deposits-Background and Preliminary Planning; Engineering Considerations for Capping Subaqueous Dredged Material Deposits-Design Concepts and Placement Techniques; Monitoring Dredged Material Consolidation and Settlement at Aquatic Disposal Sites; Computerized Database for Interpretation of the Relationship Between Contaminant Tissue Residues and Biological Effects in Aquatic Organisms; Use of Daphnia Magna to Predict Consequences of Bioaccumulation; Simplified Approach for Evaluating Bioavailability of Neutral Organic Chemicals in Sediment; A Procedure for Determining Cap Thickness for Capping Subaqueous Dredged Material Deposits; Acoustic Tools and Techniques for Physical Monitoring of Aquatic Dredged Material Disposal Sites; Contaminant Modeling; Use of Seabed Drifters for Locating and Monitoring Dredged Material Placement Sites.
Environmental Effects of Dredging. Engineering Considerations for Capping Subaqueous Dredged Material Deposits -- Background and Preliminary Planning
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 13
Book Description
In recent years the search for alternatives to expensive and limited upland containment areas for contaminated sediment has centered on in-water capped disposal. This interest was further reinforced when the convention on the Prevention of Marine Pollution by Dumping of Wastes and Other Matter (the London Dumping Convention) accepted the capping concept, subject to monitoring, as an appropriate technology for rapidly rendering harmless the contaminants of concern in dredged material. Subsequent detailed investigations (e.g., Brannon et al. 1985, O'Connor and O'Connor 1983) have confirmed that capping can be effective in chemically and biologically isolating contaminated dredged material from the overlying aquatic environment. However, in order to ensure this effectiveness, capping projects cannot be treated simply as a modification of conventional disposal practices. A capping project must be thought of as an engineered structure with design and construction requirements that must be met, verified, and maintained over the design life. This is not to say that traditional equipment and operational methods cannot be applied to capping contaminated materials. In fact, they have been used with good success. Technologies must, however, be applied in a systems context and with careful control and monitoring. (MM).
Engineering Considerations for Capping Subaqueous Dredged Material Deposits: Background and Preliminary Planning
Author: Clifford L. TruittBoston Harbor Navigation Improvement and Berth Dredging Project
Author: Liquid Filtration
Author: Nicholas P CheremisinoffPublisher: Butterworth-Heinemann
ISBN: 0750670479
Category : Science
Languages : en
Pages : 333
Book Description
This state-of-the-art review looks at liquid filtration in the chemical process and allied industries. Interpretations of the phenomenological observations of the hydrodynamics are given, and specific design and selection criteria reviewed.