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.

Date of Patent:
Oct. 16, 2018

Filed:

Nov. 17, 2017
Applicant:

Massachusetts Institute of Technology, Cambridge, MA (US);

Inventors:

Siwon Choi, Cambridge, MA (US);

Jongyoon Han, Bedford, MA (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C02F 1/46 (2006.01); C02F 1/463 (2006.01); B01D 61/42 (2006.01); C02F 1/469 (2006.01); C02F 103/08 (2006.01);
U.S. Cl.
CPC ...
C02F 1/463 (2013.01); B01D 61/42 (2013.01); C02F 1/469 (2013.01); B01D 2311/2642 (2013.01); C02F 1/4604 (2013.01); C02F 2103/08 (2013.01); C02F 2201/46115 (2013.01);
Abstract

Between two juxtaposed similar ion exchange membranes (AEMs or CEMs), an ion depletion zone and ion enrichment zone are generated under an electric field. As cations are selectively transferred through the CEMs, for example, anions are relocated in order to achieve electro-neutrality, resulting in the concentration drop (increase) in ion depletion (enrichment) zone. The use of a sacrificial metal anode allows electrocoagulation (EC) concurrently with ICP thereby permitting concentration of both ionic and non-ionic impurities to occur at the same time within the same cell or device.


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