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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.:

US 8920644 B1

PDFFull Text
Expired
Date of Patent:
Dec. 30, 2014

Filed:

Sep. 11, 2009

Water treatment method including powdered activated carbon recycling

Applicant:

Abdelkader Gaid, Paris, FR;

Inventor:

Abdelkader Gaid, Paris, FR;

Assignee:

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

Attorney:

Coats & Bennett PLLC

Primary Examiner:

Nam Nguyen

Assistant Examiner:

Richard Gurtowski

Int. Cl.
CPC ...
B01D 33/00 (2006.01); C02F 9/00 (2006.01); B01D 15/00 (2006.01); C02F 1/28 (2006.01); C02F 1/44 (2006.01); C02F 1/78 (2006.01); B01D 61/16 (2006.01);
U.S. Cl.
CPC ...
C02F 1/283 (2013.01); C02F 1/78 (2013.01); B01D 61/16 (2013.01); B01D 2311/25 (2013.01); C02F 1/444 (2013.01);
Abstract

A method of producing drinking water from wastewater comprises ozonating the wastewater and treating the wastewater with powdered activated carbon (PAC). The ozonated wastewater and the PAC are mixed together in a contacting zone. The mixture of PAC and wastewater is directed through a membrane filtration unit that separates a PAC rich concentrate from treated water. The PAC rich concentrate is recirculated to the contacting zone to increase the concentration of PAC in the contacting zone.

Find Patent Forward Citations

Gaid, Abdelkader. (2014). Water treatment method including powdered activated carbon recycling (U.S. Patent No. 8920644). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8920644

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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