Removing polychlorinated biphenyls from a contaminated surface

Details Removing polychlorinated biphenyls from a contaminated surface Removing polychlorinated biphenyls from a contaminated surface

C - Chemistry, Metallurgy

23

G

C23G 5/024 (2006.01) C10G 21/00 (2006.01) C11D 1/70 (2006.01) C11D 7/50 (2006.01) A62D 3/00 (2006.01)

Patent

CA 2067201

2067201 9202278 PCTABS00010 A method and compositions for removal of polychlorinated biphenyls (PCBs) from a surface by treatment of the surface with an extraction solvent, an encapsulating solution and an aqueous wash are disclosed. The extraction solvent includes a mixture of kerosene and a surfactant. The encapsulating solution includes a mixture of a metal hydroxide, a solvent dispersion agent, a coupling agent and water.

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