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:
Nov. 10, 2020

Filed:

Mar. 13, 2015
Applicant:

Bl Technologies Inc., Minnetonka, MN (US);

Inventors:

Hua Wang, Clifton Park, NY (US);

Hareesh Kumar Reddy Kommepalli, Albany, NY (US);

Andrew Philip Shapiro, Schenectady, NY (US);

Assignee:

BL TECHNOLOGIES, INC., Minnetonka, MN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 61/02 (2006.01); B01D 61/08 (2006.01); C02F 1/44 (2006.01); E21B 43/20 (2006.01); C02F 1/00 (2006.01);
U.S. Cl.
CPC ...
B01D 61/025 (2013.01); B01D 61/022 (2013.01); B01D 61/08 (2013.01); C02F 1/008 (2013.01); C02F 1/441 (2013.01); E21B 43/20 (2013.01); B01D 61/02 (2013.01); B01D 2317/00 (2013.01); B01D 2317/02 (2013.01); C02F 2209/005 (2013.01);
Abstract

A reverse osmosis unit for processing a feed solution is provided. The unit includes a pressure vessel includes an inlet end, an outlet end, and a vessel body extending between the inlet end and the outlet end. The reverse osmosis unit further includes a plurality of first membrane modules positioned within the pressure vessel. Each first membrane module of the plurality of first membrane modules has a first salt permeance value. At least one second membrane module is positioned within the pressure vessel and coupled in flow communication to the plurality of first membrane modules. The at least one second membrane module has a second salt permeance value that is different from the first salt permeance value.


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