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:
Jul. 08, 2025

Filed:

Jun. 10, 2022
Applicant:

The Governors of the University of Alberta, Edmonton, CA;

Inventors:

Yang Liu, Edmonton, CA;

Lei Zhang, Edmonton, CA;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 3/12 (2023.01); C01B 25/32 (2006.01); C02F 3/28 (2023.01); C02F 3/34 (2023.01); C05B 1/04 (2006.01); C07C 7/00 (2006.01); C02F 101/10 (2006.01); C02F 101/16 (2006.01); C02F 101/30 (2006.01); C02F 103/00 (2006.01);
U.S. Cl.
CPC ...
C02F 3/28 (2013.01); C01B 25/322 (2013.01); C02F 3/1268 (2013.01); C02F 3/341 (2013.01); C05B 1/04 (2013.01); C07C 7/00 (2013.01); C02F 2101/105 (2013.01); C02F 2101/16 (2013.01); C02F 2101/301 (2013.01); C02F 2103/002 (2013.01); C02F 2103/005 (2013.01); C02F 2209/06 (2013.01); C02F 2301/106 (2013.01); C02F 2303/12 (2013.01);
Abstract

A system and method for treatment of wastewater, in which the system includes a blackwater reactor configured to receive a stream of blackwater influent, to contain the blackwater therein during treatment of the blackwater, to facilitate recovery of methane and nutrient precipitates therefrom, and to output partially treated blackwater, and a greywater reactor configured to receive a stream of greywater influent and the partially treated blackwater output from the blackwater reactor, to contain the greywater and the partially treated blackwater therein during greywater treatment, and to output greywater treatment discharge. The process includes inputting a stream of blackwater into the blackwater reactor; treating the blackwater in the blackwater reactor with an anaerobic digestion process; controlling a pH level of the blackwater within the blackwater reactor; recovering nutrient precipitates from the blackwater reactor, optionally independent of chemical additives; and recovering methane from the blackwater reactor.


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