Liquid purification or separation – Processes – Ion exchange or selective sorption
Reexamination Certificate
2011-07-19
2011-07-19
Hruskoci, Peter A (Department: 1776)
Liquid purification or separation
Processes
Ion exchange or selective sorption
C210S688000, C210S692000, C210S694000, C210S748010
Reexamination Certificate
active
07981298
ABSTRACT:
A method and system for removing from an aqueous system which is contaminated therewith: (1) mercury present as colloids, ions and/or organically bound compounds, and (2) hydrocarbons solubilized, dispersed, and/or emulsified in the said system. Pursuant to the invention the aqueous system to be treated (such as “produced water”) is passed successively through three filtration stages. The first filtration stage is provided with absorption media which effects reduction/removal of dispersed organically bound mercury species and of the dispersed and partially dissolved hydrocarbon phases, as well as of some colloidal mercury and other dissolved metallic species. The second filtration stage utilizes a salt modified reticulated granular filtration media for reduction/removal of slightly dissolved hydrocarbon phases, mercury in colloidal and ionic form and other dissolved metals. The third filtration stage is a polishing stage, which serves to further reduce by electroless or voltaic reduction residual elemental mercury and/or residual colloidal and ionic mercury. At this third stage metallic mercury is incorporated into a metallic matrix from which the mercury may preferably be recovered.
REFERENCES:
patent: 2107945 (1938-02-01), Hull et al.
patent: 4154704 (1979-05-01), Vinton et al.
patent: 5080799 (1992-01-01), Yan
patent: 5292412 (1994-03-01), Pitton
patent: 6117333 (2000-09-01), Frankiewicz et al.
patent: 6180010 (2001-01-01), Alper
patent: 6861002 (2005-03-01), Hughes
patent: 6958136 (2005-10-01), Chandran et al.
patent: 7041222 (2006-05-01), Rainer
patent: 7211707 (2007-05-01), Axtell et
patent: 7264721 (2007-09-01), Alper
patent: 7264722 (2007-09-01), Alper
patent: 2002/0027105 (2002-03-01), Alper
Hruskoci Peter A
Klauber & Jackson LLC
LandOfFree
Process for removal of contaminants from industrial streams does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for removal of contaminants from industrial streams, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for removal of contaminants from industrial streams will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2692461