Use of Dredgings for Landfill
Use of Dredgings for Landfill

Author: Raymond J. Krizek

Publisher:

Published: 1978

Total Pages: 104

ISBN-13:

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This research program was initiated with the overall objective of evaluating the usefulness of dredged sediments as landfill material. The study is limited to the deposition of polluted fresh water dredgings from the Great Lakes area, and the major effort was centered around four disposal sites in the harbor serving Toledo, Ohio. A comprehensive sampling and testing program was undertaken in the field and in the laboratory to determine the engineering characteristics of hydraulically placed maintenance dredgings and the water quality effects associated with a typical dredging and disposal operation. Several thousand chemical analyses were conducted to assess the pollution potential of dredged materials under chemically treated and nontreated conditions. Several series of flocculation-sedimentation, sedimentation-leaching, repeated leaching, and evaporation tests were conducted to study the possibility of stabilizing these materials with chemical additives and to evaluate the effects, if any, of such chemicals on the leachates. Numerous index property tests were performed for classificatory purposees, and several correlations among different properties and the results of the index tests were established. An extensive field monitoring program was undertaken to evaluate the effects of a typical dredging and disposal operation on the water quality parameters of the environs. Periodic vane shear tests were conducted in two of the areas, and settlement plates were installed at one site to determine the time-dependent variations in the strength and settlement, respectively. Several in situ permeability tests were conducted on the foundation soils and the dredged materials to evaluate drainage conditions. Finally, a one-dimensional mathemathical model was developed to assess the relative importance of gravity drainage and evapotransporation on the desiccation and consolidation of a landfill composed of maintenance dredgings.

Use of Dredgings for Landfill
Use of Dredgings for Landfill

Author: Raymond J. Krizek

Publisher:

Published: 1978

Total Pages:

ISBN-13:

DOWNLOAD EBOOK

This research program was initiated with the overall objective of evaluating the usefulness of dredged sediments as landfill material. The study is limited to the deposition of polluted fresh water dredgings from the Great Lakes area, and the major effort was centered around four disposal sites in the harbor serving Toledo, Ohio. A comprehensive sampling and testing program was undertaken in the field and in the laboratory to determine the engineering characteristics of hydraulically placed maintenance dredgings and the water quality effects associated with a typical dredging and disposal operation. Several thousand chemical analyses were conducted to assess the pollution potential of dredged materials under chemically treated and nontreated conditions. Several series of flocculation-sedimentation, sedimentation-leaching, repeated leaching, and evaporation tests were conducted to study the possibility of stabilizing these materials with chemical additives and to evaluate the effects, if any, of such chemicals on the leachates. Numerous index property tests were performed for classificatory purposees, and several correlations among different properties and the results of the index tests were established. An extensive field monitoring program was undertaken to evaluate the effects of a typical dredging and disposal operation on the water quality parameters of the environs. Periodic vane shear tests were conducted in two of the areas, and settlement plates were installed at one site to determine the time-dependent variations in the strength and settlement, respectively. Several in situ permeability tests were conducted on the foundation soils and the dredged materials to evaluate drainage conditions. Finally, a one-dimensional mathemathical model was developed to assess the relative importance of gravity drainage and evapotransporation on the desiccation and consolidation of a landfill composed of maintenance dredgings.

Land Application of Waste Materials from Dredging, Construction, and Demolition Processes
Land Application of Waste Materials from Dredging, Construction, and Demolition Processes

Author: Charles R. Lee

Publisher:

Published: 1976

Total Pages: 46

ISBN-13:

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This paper presents the text of a manuscript to be published as a chapter in a monograph of the symposium entitled 'Land Application of Waste Materials, ' sponsored by the Soil Conservation Society of Ameria. The paper is divided into two sections: waste materials generated by the dredging process and by the construction and demolition processes. Quantities and the general physical and chemical characteristics of the waste materials for each process are described. The potential use of these materials for land application for agricultural production is discussed as well as other potential uses such as land improvement, wildlife habitat development, recreational facilities, and industrial and residential landfill. The environmental impact of using these materials is described with emphasis on the legal restrictions as well as the social and psychological concerns to be considered. Certain dredged material will no doubt be beneficial to specific land application sites. However, all dredged material will not be suitable for land application. The dilemma to be reconciled is to determine which dredge material and application sites are environmentally compatible. Information is being generated through the Dredged Material Research Program, under the direction of the U.S. Army Engineer Waterways Experiment Station, Vicksburg, Miss. This information coupled with sound scientific management should achieve productive uses of dredged material that are technically satisfactory, environmentally compatible, and economically feasible. (Author).

Disposal of Dredge Spoil
Disposal of Dredge Spoil

Author: Marden B. Boyd

Publisher:

Published: 1972

Total Pages: 168

ISBN-13:

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The report presents an assessment of the dredge spoil disposal problem and outlines a research program designed to provide needed information concerning current and potential spoil disposal practices. The report format is intended to reflect the two basic objectives of the report. Section A is directed toward management level review and presents (a) pertinent background information concerning the dredge spoil disposal problem and the current study, (b) conclusions and recommendations resulting from the problem assessment phase of the study, and (c) an outline of the recommended research program. Section B provides an objective assessment of the nationwide problem in sufficient detail to permit meaningful technical review by other interested personnel within and outside the Corps. Section C has been included to show a total-problem organizational structure which is being used to guide the development of the detailed research plan.