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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.:

US 10192648 B1

PDFFull Text
Date of Patent:
Jan. 29, 2019

Filed:

Sep. 20, 2016

Tank closure cesium removal

Applicant:

Westinghouse Electric Company Llc, Cranberry Township, PA (US);

Inventors:

Mark A. Beck, Richland, WA (US);

Thomas J. Gammon, Richland, WA (US);

Gregory B. Harting, Hermiston, OR (US);

Assignee:

Westinghouse Electric Company LLC, Cranberry Township, PA (US);

Attorneys:

Richard J. Coldren

Westinghouse Electric Company LLC

Primary Examiner:

Matthew O Savage

Int. Cl.
CPC ...
C02F 1/42 (2006.01); G21F 9/12 (2006.01); G21F 3/00 (2006.01); B01D 15/36 (2006.01); B01D 15/22 (2006.01); B01J 47/022 (2017.01); B01J 47/024 (2017.01); C02F 101/00 (2006.01); C02F 103/34 (2006.01); G21F 5/10 (2006.01); G21F 5/005 (2006.01); G21F 5/14 (2006.01); G21F 5/12 (2006.01);
U.S. Cl.
CPC ...
G21F 9/12 (2013.01); B01D 15/22 (2013.01); B01D 15/361 (2013.01); B01J 47/022 (2013.01); B01J 47/024 (2013.01); C02F 1/42 (2013.01); G21F 3/00 (2013.01); C02F 2101/006 (2013.01); C02F 2103/34 (2013.01); C02F 2201/002 (2013.01); C02F 2201/006 (2013.01); C02F 2201/007 (2013.01); C02F 2201/008 (2013.01); G21F 5/005 (2013.01); G21F 5/10 (2013.01); G21F 5/12 (2013.01); G21F 5/14 (2013.01); G21Y 2002/60 (2013.01); G21Y 2004/601 (2013.01);
Abstract

The invention relates to systems, apparatus and methods for the removal of cesium and other radionuclides from liquid waste contained in a high level waste tank. The invention includes transporting a stream of the liquid waste from the high level waste tank to one or more ion-exchange column assemblies to remove the cesium therefrom using a sorbent, such as, crystalline silico-titanate. The ion-exchange column assemblies include an ion-exchange column and an integrated shield. The column is concentrically positioned within the shield and an air gap is present between the column and the shield to provide passive cooling.

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