Liquid purification or separation – Processes – Chemical treatment
Reexamination Certificate
2011-02-15
2011-02-15
Griffin, Walter D (Department: 1797)
Liquid purification or separation
Processes
Chemical treatment
C210S668000, C210S763000, C502S300000
Reexamination Certificate
active
07887709
ABSTRACT:
A method for the treatment of a contaminated medium including the steps of introducing hydrogen into the contaminated medium, adding micron-sized metal catalyst particles to the contaminated medium, reacting the contaminated medium with the micron-sized metal catalyst and substantially retaining the catalyst particles in the contaminated medium. In another aspect, a system for the ex situ treatment of contaminated fluid including a vessel configured to receive the contaminated fluid, micron-sized metal catalyst particles located in the vessel, a hydrogen source positioned for delivering hydrogen to the contaminated fluid, and a membrane filter positioned to prevent the metal catalyst from eluting from the vessel.
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Condee Charles W.
Schaefer Charles E.
Allen Cameron J
Griffin Walter D
RatnerPrestia
Shaw Environment & Infrastructure, Inc.
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