Paul Andrew Mueller

US Patent:

6783681, Aug 31, 2004

Filed:

Nov 9, 2001

Appl. No.:

09/991478

Inventors:

Paul Mueller - Monmouth OR
Anthony G. Myers - Franklin WI

Assignee:

CH2M Hill, Inc. - Englewood CO

International Classification:

B01D 6100

US Classification:

210650, 210663, 210670, 210636, 2101952, 2102572

Abstract:

An apparatus and method for the treatment and purification of drinking water combines the use of an ion-exchange resin and a membrane filter ( ) in a single process tank. The ion-exchange resin is removed from the process tank ( ) and regenerated for reuse.

US Patent:

7025884, Apr 11, 2006

Filed:

Dec 3, 2003

Appl. No.:

10/727441

Inventors:

Paul Mueller - Corvallis OR, US
Anthony G. Myers - Franklin WI, US

Assignee:

CH2M Hill, Inc. - Englewood CO

International Classification:

G01D 61/00

US Classification:

210650, 210670, 210663, 210669, 210284, 2102572, 210636

Abstract:

A method for treating a fluid by providing raw fluid to a process tank, adding an ion exchange resin to the process tank to form a raw fluid/ion exchange resin mixture, removing treated fluid from the process tank through a membrane filter located within the process tank, and regenerating the ion exchange resin within the process tank. The method may be set up as a batch process or as a continuous process using a magnetic ion exchange resin and continuous withdrawal of the magnetic ion exchange resin from the process tank by use of a magnetic separator. The method may also consist of reusing the regenerant in multiple regeneration steps and periodically filtering the regenerant to restore its regenerative properties. Alternatively, an upflow bed of ion exchange resin may be used to treat the raw fluid before membrane filtration.

US Patent:

7144510, Dec 5, 2006

Filed:

Aug 22, 2005

Appl. No.:

11/208905

Inventors:

Paul Mueller - Corvallis OR, US
Anthony G Myers - Franklin WI, US

Assignee:

CH2M Hill, Inc. - Englewood CO

International Classification:

B01D 61/00
B01J 49/00
C01F 1/42

US Classification:

210650, 210660, 210663, 210670, 210263, 210669, 210269

Abstract:

A method for treating a fluid by providing a raw fluid to a process tank. The raw fluid may be water having varying degrees of contamination or another type of fluid. The method further consists of adding an ion exchange resin to the process tank to form a raw fluid/ion exchange resin mixture. After the fluid has been sufficiently contacted with the ion exchange resin, treated fluid is removed from the process tank through a membrane filter located within the process tank. The method is completed by regenerating the ion exchange resin within the same process tank.

US Patent:

20070090050, Apr 26, 2007

Filed:

Dec 5, 2006

Appl. No.:

11/567077

Inventors:

Paul Mueller - Corvallis OR, US
Anthony Myers - Franklin WI, US

Assignee:

CH2M Hill, Inc. - Englewood CO

International Classification:

B01D 11/00

US Classification:

210648000

Abstract:

A method for treating a fluid by providing a raw fluid to a process tank. The raw fluid may be water having varying degrees of contamination or another type of fluid. The method further consists of adding an ion exchange resin to the process tank to form a raw fluid/ion exchange resin mixture. After the fluid has been sufficiently contacted with the ion exchange resin, treated fluid is removed from the process tank through a membrane filter located within the process tank. The method is completed by regenerating the ion exchange resin within the same process tank.