Long-Term Effects of Dredging Operations Program. Interim Guidance for Predicting the Quality of Effluent Discharged from Confined Dredged Material Disposal Areas PDF Download
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Author: Michael R. Palermo
Publisher:
ISBN:
Category :
Languages : en
Pages : 40
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Book Description
A modified elutriate test procedure to estimate both the dissolved and particle-associated concentrations of contaminants in confined disposal area effluents is discussed. The laboratory test simulates contaminant release under conditions prevalent in confined disposal areas and reflects sedimentation behavior of dredged material, retention time of the containment, and physicochemical environment in ponded water during active disposal.
Author: Michael R. Palermo
Publisher:
ISBN:
Category :
Languages : en
Pages : 40
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Book Description
A modified elutriate test procedure to estimate both the dissolved and particle-associated concentrations of contaminants in confined disposal area effluents is discussed. The laboratory test simulates contaminant release under conditions prevalent in confined disposal areas and reflects sedimentation behavior of dredged material, retention time of the containment, and physicochemical environment in ponded water during active disposal.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 8
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Book Description
The following series of technical notes describe the functions necessary for predicting the quality of effluent discharged from confined dredged material disposal areas during disposal operations. The guidance was developed as a part of on-going research conducted under the Long-Term Effects of Dredging Operations (LEDO) Program. Procedures for such predictions are being refined and verified under LEDO through comparative evaluations of predictions and field measurement of effluent water quality. Confined dredged material disposal has increased because of constraints on open-water disposal. The quality of water discharged from confined disposal areas (effluent) is a major environmental concern associated with such disposal. A schematic of a typical active confined disposal area is illustrated. Dredged material placed in a disposal area undergoes sedimentation that results in a thickened deposit of material overlaid by clarified water (supernatant), which is discharged as effluent from the site during disposal operations. The concentrations of suspended solids in the effluent can be determined by column settling tests. Pg1. JMD.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 9
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Book Description
The following series of technical notes described the functions necessary for predicting the quality of effluent discharged from confined dredged material disposal areas during dredging operations.
Author: Michael R. Palermo
Publisher:
ISBN:
Category : Dredging
Languages : en
Pages : 42
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 11
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Book Description
The purpose of the following series of technical notes describe the functions necessary for predicting the quality of effluent discharged from confined dredged material disposal areas during dredging operations.-BKA.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 12
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Book Description
The following series of technical notes describe the functions necessary for predicting the quality of effluent discharged from confined dredged material disposal areas during disposal operations.
Author: Michael R. Palermo
Publisher:
ISBN:
Category : Dredging
Languages : en
Pages : 138
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Book Description
Author:
Publisher:
ISBN:
Category : Hydrology
Languages : en
Pages : 952
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Book Description
Author: Michael R. Palermo
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Michael R. Palermo
Publisher:
ISBN:
Category :
Languages : en
Pages : 153
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Book Description
The quality of effluent discharged from confined dredged material disposal areas is an environmental concern when the sediments to be dredged are contaminated. This report describes the development of a modified elutriate test procedure for prediction of the quality of effluent from confined dredged material disposal areas. The test was developed to simulate the physicochemical conditions in confined disposal areas which would affect the release of contaminants. The test development included experiments comparing suspended solids and particle grain-size distributions for test vessel selection. Factorial experiments were then conducted to select appropriate test factors for simulating the oxidizing conditions and retention times present in confined disposal areas. Limited field evaluations of effluent water quality were compared with the laboratory data. The test was found to adequately predict the dissolved concentration of contaminants and the fractions of contaminants associated with the suspended solids in the effluent.
