IP Library Granted Patent US 7,906,023
Granted Patent B2
US 7,906,023 · App. 12/025,523 · Granted Mar 15, 2011

Wastewater treatment method and apparatus

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Quick Facts
Patent No.
US 7,906,023
App. No.
12/025,523
Granted
Mar 15, 2011
Kind
B2
Abstract

The present invention discloses a method and apparatus for separating particles and dissolved matter from a produced water fluid stream. Specifically, the present invention includes a first pressure source which transports untreated produced water or contaminated aqueous fluid into a separator annulus with a filter element disposed therein. The untreated fluid is placed under appropriate pressure sufficient to produce turbulent flow, increased particle kinetics and/or cavitation allowing the desired fluid to penetrate and pass into and through the filter media. The treated fluid is then transported to a collection tank. The contaminant matter retained by the filter media may be removed by the nearly instantaneous reverse pressurization of the separator annulus by a second pressure source thereby removing the contaminant particles away from contact with the filter media, and which may then be transported to a waste collection tank or a separator for further treatment.

Claims (19)

1. A method of treating wastewater comprising:

rhythmically pumping the wastewater having a contaminant into at least one separator in such a manner as to cause turbulence-induced cavitation in the at least one separator, each at least one separator having a flux cartridge employing a sintered metal filter;

removing a substantial portion of the contaminant from the produced wastewater within the separator;

transporting the treated effluent to an effluent collection tank;

transporting the remaining waste fluid through a first outlet into a waste fluid collection reservoir; and,

backwashing the flux cartridge with a portion of the treated effluent from the separator.

2. The method of claim 1 further comprising:

transporting the waste fluid to a concentrator;

desiccating the remainder of the waste fluid so that a substantial part of the water is removed; and,

removing a substantial portion of the concentrated contaminant from the concentrator.

3. The method of claim 2 wherein the contaminant removed from the concentrator is substantially dry.

4. The method of claim 3 wherein the substantially dry contaminant is removed from the concentrator by a purge air source.

5. The method of claim 1 further comprising:

transporting the treated effluent to a reverse osmosis unit.

6. The method of claim 1 further comprising:

disinfecting the treated effluent with an ultraviolet disinfection unit.

7. The method of claim 1 wherein a plurality of separators are operated in a parallel configuration.

8. The method of claim 1 wherein a first plurality of separators are operated in a parallel configuration and a second plurality of separators are operated in a series configurations further wherein the first plurality of separators and second plurality of separators are in fluid communication with each other.

9. The method of claim 1 wherein the flow of wastewater into the separator is controlled by at least one poppet valve.

Assignments (9)
AMENDED AND RESTATED GRANT OF SECURITY INTEREST IN PATENTS Recorded Dec 19, 2016
From: TERVITA CORPORATION
To: WILMINGTON TRUST, NATIONAL ASSOCIATION
Reel/Frame 041032/0175 →
GRANT OF SECURITY INTEREST IN PATENTS Recorded Feb 14, 2013
From: TERVITA CORPORATION
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL TRUSTEE
Reel/Frame 029817/0826 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 23, 2012
From: CCS MIDSTREAM SERVICES, LLC
To: TERVITA CORPORATION
Reel/Frame 027919/0626 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 12, 2012
From: PSS ACQUISITION CO. LLC
To: CCS MIDSTREAM SERVICES, LLC
Reel/Frame 027526/0345 →
NOTICE OF FORECLOSURE AND BILL OF SALE Recorded Oct 15, 2009
From: PSS ACQUISITIONCO LLC ASSIGNEE OF PLAINFIELD SPECIALTY HOLDINGS II INC.
To: PSS ACQUISITIONCO LLC
Reel/Frame 023373/0406 →
ASSIGNMENT OF SECURITY INTEREST Recorded Oct 14, 2009
From: PLAINFIELD SPECIALTY HOLDINGS II INC.
To: PSS ACQUISITIONCO LLC
Reel/Frame 023364/0789 →
SECURITY AGREEMENT Recorded Oct 14, 2009
From: LJC TECHNOLOGIES, L.L.C.
To: PLAINFIELD OFFSHORE HOLDINGS XII INC.
Reel/Frame 023372/0322 →
SECURITY AGREEMENT Recorded Oct 14, 2009
From: PLAINFIELD OFFSHORE HOLDINGS XII INC.
To: PLAINFIELD SPECIALTY HOLDINGS II INC.
Reel/Frame 023372/0367 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 18, 2008
From: JOHNSON, RAYMOND FORD, MR.
To: LJC TECHNOLOGIES, L.L.C.
Reel/Frame 020668/0578 →