Charles J Lord

US Patent:

7419602, Sep 2, 2008

Filed:

Nov 22, 2005

Appl. No.:

11/284856

Inventors:

Roosevelt Alexander - Vallejo CA, US
Charles J. Lord - Bartlesville OK, US
Steven C. Mitchell - Lafayette CA, US

Assignee:

ConocoPhillips Company - Houston TX

International Classification:

C02F 1/54
C02F 1/58
C02F 1/24
C02F 101/18

US Classification:

210705, 210725, 210727, 210904, 210911, 210912, 423493, 423509

Abstract:

A process for removing selenium from a water stream, in particular a waste water stream, by: 1) the addition thereto of a ferric salt, followed by 2) the addition of a cupric salt and pH adjustment to a pH value in the range of from about 6. 5 to about 8. 0, thereby forming a copper-and-selenium-containing precipitate, and 3) removing the copper-and-selenium-containing precipitate to thereby form a treated water stream, is disclosed. The optional precipitation and removal of excess copper ions is also disclosed.

US Patent:

20080142446, Jun 19, 2008

Filed:

Dec 15, 2006

Appl. No.:

11/639817

Inventors:

Marvin Johnson - Bartlesville OK, US
Charles J. Lord - Bartlesville OK, US
Larry E. Reed - Bartlesville OK, US
Kenneth C. McCarley - Bartlesville OK, US
Glenn W. Dodwell - Bartlesville OK, US
Tin Tack Peter Cheung - Kingwood TX, US
John Cruze - Sugar Land TX, US
Richard Anderson - Bartlesville OK, US

International Classification:

C02F 1/28

US Classification:

210660

Abstract:

A process for removing selenium from an aqueous stream using a supported sulfur material, and optionally the addition of an activating agent for enhanced removal of selenite, is disclosed.

US Patent:

20080142450, Jun 19, 2008

Filed:

Dec 15, 2006

Appl. No.:

11/639813

Inventors:

Charles J. Lord - Bartlesville OK, US
Larry E. Reed - Bartlesville OK, US

International Classification:

C02F 1/58

US Classification:

210721

Abstract:

A process for removing selenium from an aqueous stream using a supported sulfur material, to convert selenocyanate to selenite, followed by removal of the selenite from the aqueous stream.

US Patent:

20140042065, Feb 13, 2014

Filed:

Sep 6, 2013

Appl. No.:

14/020388

Inventors:

Charles J. Lord III - Bartlesville OK, US
Bruce B. Randolph - Bartlesville OK, US
Joe B. Cross - Bartlesville OK, US
Sumod Kalakkunnath - Bartlesville OK, US
Mike K. Corbett - Bartlesville OK, US
Roger K. Goenner - Billings MT, US
Larry E. Reed - Bartlesville OK, US

International Classification:

C02F 1/58

US Classification:

210177, 210259, 210202, 210251

Abstract:

Methods and apparatus relate to treating fluid to at least reduce selenium content within the fluid. The treating includes conditioning stages to alter a composition of the fluid prior to removal of the selenium content from the fluid. The composition of the fluid after the conditioning stages facilitates the removal of the selenium content or at least limits detrimental impact to selenium removal efficiency.