The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 12, 2002
Filed:
Jun. 15, 2001
Applicant:
Inventors:
Jimmie D. Petty, Columbia, MO (US);
James N. Huckins, Columbia, MO (US);
David A. Alvarez, Columbia, MO (US);
Assignee:
The United States of America as represented by the Secretary of the Interior, Washington, DC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 2/400 ; B01D 6/300 ;
U.S. Cl.
CPC ...
B01D 2/400 ; B01D 6/300 ;
Abstract
A device is provided for the sequestration and concentration of polar chemicals from water. The device includes a microporous hydrophilic membrane enclosure formed by a tube or facing membranes. A mixed sequestration media, contained within the enclosure, transforms dissolved polar organic chemicals into non-mobile species. The sequestration media is a triphasic admixture of a hyper-crosslinked polystyrene-divinylbenzene resin, and a carbonaceous sorbent dispersed on a size exclusion styrene-divinylbenzene copolymer.