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:
Jan. 25, 2022

Filed:

Dec. 03, 2018
Applicant:

Veolia Water Solutions & Technologies Support, Saint-Maurice, FR;

Inventors:

John A. Korpiel, Wexford, PA (US);

LNSP Nagghappan, Irvine, CA (US);

Brad Biagini, Wexford, PA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 61/04 (2006.01); B01D 65/08 (2006.01); C02F 1/44 (2006.01); C02F 103/10 (2006.01); C02F 5/08 (2006.01); B01D 61/02 (2006.01); B01D 61/06 (2006.01);
U.S. Cl.
CPC ...
C02F 1/441 (2013.01); B01D 61/022 (2013.01); B01D 61/04 (2013.01); B01D 61/06 (2013.01); B01D 65/08 (2013.01); C02F 5/08 (2013.01); B01D 2311/04 (2013.01); B01D 2311/12 (2013.01); B01D 2311/25 (2013.01); B01D 2311/2623 (2013.01); B01D 2311/2642 (2013.01); B01D 2317/025 (2013.01); B01D 2321/12 (2013.01); C02F 2103/10 (2013.01);
Abstract

A method for treating produced water in a system for treating wastewater is disclosed. The system includes a reverse osmosis unit for removing dissolved solids. The reverse osmosis unit produces a permeate and concentrate. To reduce the fouling potential of the membranes associated with the reverse osmosis unit and/or to increase membrane lifetime and/or to increase system recovery, at least a portion of the concentrate is recycled and mixed with the wastewater stream at a point upstream of the reverse osmosis unit.


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