公开(公告)号：US20180033508A1

公开(公告)日：2018-02-01

申请号：US15270312

申请日：2016-09-20

Applicant: WESTINGHOUSE ELECTRIC COMPANY LLC

Inventor： MARK A. BECK ,  THOMAS J. GAMMON ,  GREGORY B. HARTING

IPC: G21F9/12 ,  B01D15/22 ,  B01D15/36 ,  G21F3/00 ,  C02F1/42

CPC classification number: G21F9/12 ,  B01D15/22 ,  B01D15/361 ,  B01J47/022 ,  B01J47/024 ,  C02F1/42 ,  C02F2101/006 ,  C02F2103/34 ,  C02F2201/002 ,  C02F2201/006 ,  C02F2201/007 ,  C02F2201/008 ,  G21F3/00 ,  G21F5/005 ,  G21F5/10 ,  G21F5/12 ,  G21F5/14 ,  G21Y2002/60 ,  G21Y2004/601

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.