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.
Patent No.:
Date of Patent:
Dec. 10, 2019
Filed:
Mar. 14, 2014
Applicant:
Porifera, Inc., Hayward, CA (US);
Inventors:
Charles Benton, Berkeley, CA (US);
Olgica Bakajin, San Leandro, CA (US);
Carl Lundin, Honolulu, HI (US);
Assignee:
Porifera, Inc., San Leandro, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 61/58 (2006.01); B01D 61/12 (2006.01); B01D 61/00 (2006.01); B01D 61/02 (2006.01); B01D 61/06 (2006.01); B01D 65/02 (2006.01); C02F 1/44 (2006.01);
U.S. Cl.
CPC ...
B01D 61/58 (2013.01); B01D 61/002 (2013.01); B01D 61/02 (2013.01); B01D 61/022 (2013.01); B01D 61/025 (2013.01); B01D 61/027 (2013.01); B01D 61/06 (2013.01); B01D 61/12 (2013.01); B01D 65/02 (2013.01); C02F 1/441 (2013.01); C02F 1/445 (2013.01); B01D 2311/14 (2013.01); B01D 2311/25 (2013.01); B01D 2313/243 (2013.01); B01D 2313/246 (2013.01); B01D 2317/02 (2013.01); B01D 2317/025 (2013.01); B01D 2317/08 (2013.01); B01D 2321/16 (2013.01); B01D 2325/20 (2013.01);
Abstract
An example water purification system for purifying high concentration feed solutions includes a high rejection forward osmosis module, one or more low rejection modules, and a high rejection reverse osmosis module. The low rejection modules may have different rejection levels. The system may be pressurized by one or more pumps. One or more of the low rejection modules may include one or more nanofiltration (NF) membranes. The draw solution may comprise a monovalent salt, a multivalent salt, or a combination of both.