05868915 is referenced by 60 patents and cites 78 patents.

An improved electrodeionization apparatus and method are provided. The electrodeionization apparatus includes electrolyte compartments, ion-concentrating, and ion-depleting compartments, having electroactive media therein. The electroactive media can be induced to have a reversible change in its chemical or electrical properties upon imposition of an external electrical field or the presence of an electrically charged substance. The change in chemical or electrical properties of the media results in a desired change in the transport or chemical properties of the media. The incorporation of the improved electroactive media also provides for an improved, and more reliable electrodeionization process in applications requiring chemical and temperature resistance media, where localized pH shifts would be harmful to the product being deionized, under temperature and chemical conditions of the liquid to be processed, or under circumstances where traditional media would tend to foul.

Title
Electrodeionization apparatus and method
Application Number
8/717781
Publication Number
5868915
Application Date
September 23, 1996
Publication Date
February 9, 1999
Inventor
Paul Springthorpe
Duston
GB
Frederick Wilkins
Pepperill
MA, US
Anthony J Giuffrida
North Andover
MA, US
Felice DiMascio
Nashua
NH, US
Gary C Ganzi
Lexington
MA, US
Agent
Wolf Greenfield & Sacks P C
Assignee
United States Filter Corporation
CA, US
IPC
B01D 61/44
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