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Author: R. C. Semonian Publisher: ISBN: Category : Languages : en Pages : 4
Book Description
Contaminated dredged sediments were covered with less contaminated sediments in a controlled and monitored series of operations in Long Island Sound at a depth of 20 m. Observations have yielded useful information on formation of mounds, stability under stress of wave and current energy, and technology of marking, measurement, and data acquisition. Efficiency of the caps of two dissimilar sediments is evaluated in terms of physical behavior and chemical leaching.
Author: R. C. Semonian Publisher: ISBN: Category : Languages : en Pages : 4
Book Description
Contaminated dredged sediments were covered with less contaminated sediments in a controlled and monitored series of operations in Long Island Sound at a depth of 20 m. Observations have yielded useful information on formation of mounds, stability under stress of wave and current energy, and technology of marking, measurement, and data acquisition. Efficiency of the caps of two dissimilar sediments is evaluated in terms of physical behavior and chemical leaching.
Author: United States. Congress. House. Committee on Public Works and Transportation Publisher: ISBN: Category : Dredging spoil Languages : en Pages : 834
Author: D. J. Suszkowski Publisher: ISBN: Category : Languages : en Pages : 11
Book Description
The sediments in New York Harbor are contaminated with a wide variety of chemical constituents. Results of testing conducted in accordance with the EPA Ocean Dumping Criteria by several permit applicants in 1979 indicated a bioaccumulation potential for PCB in the marine worm being tested. Approximately 650,000 cubic meters of material dredged from the projects were precision dumped at a tautmoored buoy located in about 27 meters of water in the Atlantic Ocean. The deposit was then capped with approximately 1.4 million cubic meters of uncontaminated dredged material in an attempt to isolate the contaminated sediments from the marine ecosystem. Studies were initiated to determine the stability of the capped mound and the biological effectiveness of the cap. An additional study was initiated to determine a unique chemical signature for the disposal sediments such that the burial location of the contaminated sediments could be identified and subsequently monitored if necessary. The studies are all presently ongoing with final results due in early 1982.
Author: Michael R. Palermo Publisher: 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.
Author: R. W. Morton Publisher: ISBN: Category : Languages : en Pages : 19
Book Description
Disposal of contaminated sediments in the marine environment through capping with cleaner materials is a management option that has been used extensively during recent years, particularly in the New England region. Most of the capping projects have been restricted to quiescent, shallow-water (20 to 30 m) environments; however, as a result of monitoring programs associated with these projects, a body of knowledge concerning the creation of capped disposal mounds has been developed that can be used to predict the consequences of extending such procedures to deeper waters. The application of capping technology to deeper water is extremely important, because disposal site designation programs currently under way throughout the United States are predominantly aimed at water depths of 100 m or greater.
Author: R. C. Semonian
Author: R. C. Semonian
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Author: 
Author: United States. Congress. House. Committee on Public Works and Transportation
Author: D. J. Suszkowski
Author: 
Author: 
Author: Michael R. Palermo
Author: R. W. Morton
Author: