Capping and treating a metal-contaminated sediment

Details Capping and treating a metal-contaminated sediment Capping and treating a metal-contaminated sediment

2006-03-14

2006-03-14

Kopec, Mark (Department: 1751)

Compositions

Compositions for coating or impregnating a substrate used...

C252S088100, C405S268000, C405S107000, C405S128150, C428S403000, C428S323000

Reexamination Certificate

active

07011766

ABSTRACT:
A method of treating a metal-contaminated sediment includes capping the sediment with a capping product containing sulfur and at least one component selected from the group consisting of clays, clay-sized materials, bulking agents, sand, sand-sized materials, aggregate, and binding agents. A capping product includes a plurality of manufactured composite particles, each composite particle comprising a relatively dense core and a sealant layer at least partially encapsulating the core, the sealant layer including sulfur and at least one of the above components.

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patent: 6558081 (2003-05-01), Hull
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“Plaster of Paris”, Data Sheet-1, Encyclopedia of Britannica, 2005.
“Contaminated Sediments in Ports and Waterways, Cleanup Stragegies and Technologies”, Marine Board, National Research Council, pp. 97-99. (1997).
“Regional Geochemistry of Metals in Organic-Rich Sediments, Sawgrass and Surface Water, from Taylor Slough, Florida”, U.S. Department of the Interior, USGS, OFR-00-327, pp. 1-5 (2002).
“Immobilization of Cobalt by Sulfate-Reducing Bacteria in Subsurface Sediments”, Krumholz et al., published in Geomicrobiology Journal, vol. 20, No. 1/Jan.-Feb., 2003, pp. 61-72 (Abstract provided).

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