Commencement Bay Nearshore/Tideflats Superfund Site, Tacoma, Washington Remedial Investigations. Evaluation of Alternative Dredging Methods and Equipment, Disposal Methods and Sites, and Site Control and Treatment Practices for Contaminated Sediments.
CORPS OF ENGINEERS SEATTLE WA SEATTLE DISTRICT
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Alternative technologies and techniques for dredging, disposal, and treatment of contaminated sediments are reviewed. Implications of alternative technologies for management of contaminated sediments are discussed. Selection of appropriate technologies for contaminated sediments management depends on the physical and chemical profile of the sediments, and particularly on the physical state liquid, solid, or gaseous of contaminants of concern and changes in state that may occur at different phases of dredging, disposal, control, and treatment. Determination of acceptable criteria governing concentrations of contaminants in water, sediments and soils, and air is the major requirement for selecting specific technologies for managing contaminated sediments. Technologies should be used which ensure that criteria will be met at all phases in the handling operations. Cost is most variable for disposal site effluent treatment options.
- Civil Engineering