Liquid purification or separation – Processes – Ion exchange or selective sorption
Reexamination Certificate
2007-01-02
2007-01-02
Hopkins, Robert A. (Department: 1724)
Liquid purification or separation
Processes
Ion exchange or selective sorption
C210S688000
Reexamination Certificate
active
11059733
ABSTRACT:
A method for removing perchlorate or other anionic contaminates from ground water which comprises the step of passing the ground water over activated carbon, wherein the activated carbon has been either preloaded with an organic cation functional group or organic cation polymer or cationic monomer, or tailored with ammonium or other reduced nitrogen-containing compound.
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Cannon Fred S.
Chen Weifang
Hagerup Benjamin
Na Chongzheng
Parette Robert B.
Hopkins Robert A.
Ohlandt Greeley Ruggiero & Perle L.L.P.
The Penn State Research Foundation
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