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:
May. 23, 2023

Filed:

Jun. 17, 2019
Applicant:

Proterrgo Inc., Montréal, CA;

Inventors:

Nicole Alice Poirier, Beaconsfield, CA;

Valérie Leveillé, Montréal, CA;

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 9/00 (2023.01); C02F 1/463 (2023.01); C02F 1/465 (2023.01); C02F 1/467 (2023.01); C02F 1/76 (2023.01); C02F 1/461 (2023.01); C02F 103/00 (2006.01); C02F 103/08 (2006.01); C02F 1/32 (2023.01);
U.S. Cl.
CPC ...
C02F 9/00 (2013.01); C02F 1/463 (2013.01); C02F 1/465 (2013.01); C02F 1/4674 (2013.01); C02F 1/76 (2013.01); C02F 1/32 (2013.01); C02F 2001/46138 (2013.01); C02F 2103/002 (2013.01); C02F 2103/005 (2013.01); C02F 2103/008 (2013.01); C02F 2103/08 (2013.01); C02F 2201/4614 (2013.01); C02F 2201/46135 (2013.01); C02F 2201/46175 (2013.01); C02F 2209/02 (2013.01); C02F 2209/04 (2013.01); C02F 2209/05 (2013.01); C02F 2209/06 (2013.01); C02F 2209/11 (2013.01); C02F 2209/245 (2013.01); C02F 2209/29 (2013.01); C02F 2209/40 (2013.01);
Abstract

The wastewater treatment apparatus of present invention has an electro-coagulation unit for removing contaminants with at least one anode and at least one cathode and an electro-oxidation unit for oxidizing contaminants with at least one anode and at least one cathode wherein oxidants are electrochemically generated. Based on the type of wastewater, the apparatus can have an electro-flotation unit between the electrocoagulation unit and the electro-oxidation unit. The apparatus also has an oxidant removal unit which can have a metal ion-liberating electrode for reacting with and removing residual oxidants. In some cases, portions of effluent from the oxidant removal unit can be recirculated to the electro-coagulation unit for increased efficiency.


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