Doug Kimzey

US Patent:

20140008229, Jan 9, 2014

Filed:

Feb 13, 2013

Appl. No.:

13/765924

Inventors:

- Concord, CA
Bruce S. Beattie - Vista CA, US
Ben Harris - Fallbrook CA, US
Doug Kimzey - Knoxville TN, US
Robert C. Parrott - Knoxville TN, US
James Micak - Aurora, CA

Assignee:

DPRA Canada Incorporated - Concord

International Classification:

C02F 1/48

US Classification:

204554

Abstract:

There is a method described of treating tailings which are composed of at least some water and clay particles. Within the tailings, at least some water molecules are weakly bond to the clay particles to form a gel like fluid from which water does not readily separate. An alternating current is applied to the tailings to change the electro-chemical properties of the tailings to reduce the weak bonding between the water and the clay particles so that water within the treated tailings is able to separate. Water within the treated tailings is then allowed to separate without further application of electricity. In some embodiments, the treated tailings are allowed to separate through evaporation. Liquid tailings may also be treated with alternating current by applying alternating current to the liquid tailings at a voltage gradient range of 1 to 5 V/cm for a total duration of 24 to 300 hours. The application of alternating current may further comprise applying alternating current at a frequency of 1 to 30 Hz.

US Patent:

20120255872, Oct 11, 2012

Filed:

Apr 5, 2012

Appl. No.:

13/440386

Inventors:

Gregory J. Smith - Woodbridge IL, US
Bruce S. Beattie - Vista CA, US
Robert C. Parrott - Knoxville TN, US
James Micak - Aurora, CA
Paul Garcia - Temecula CA, US
Doug Kimzey - Knoxville TN, US

International Classification:

C02F 1/463
C25B 15/00
C25B 11/03

US Classification:

205742, 204280, 204284, 204279

Abstract:

A method is provided of treating liquid tailings using electro-kinetics by creating a variable voltage between two electrodes in the tailings. Flocculation and water release from the tailings is induced by establishing an electrical field between the two electrodes. The electrodes are connected to an electrical power source having the variable voltage to create a cathode and an anode. Compacting the flocculation solids and removing further water released from the compacting solids allows for the creation of a compacted material having a desired load bearing capacity.

US Patent:

20190241453, Aug 8, 2019

Filed:

Feb 7, 2019

Appl. No.:

16/270076

Inventors:

- Toronto, CA
Ed Hanna - Pickering, CA
Clare Armstrong - Hamilton, CA
Barna Szabados - Ancaster, CA
Steven Spencer - Hamilton, CA
Doug Kimzey - Knoxville TN, US

International Classification:

C02F 11/15
G06F 17/50
C02F 9/00
C02F 11/00

Abstract:

An adaptive electrokinetic dewatering system for dewatering slurry and soil deposits, including tailings deposits and a control system therefor. The control system automatically determines an optimal applied power specification, including sets of power parameters to be applied to the deposit being dewatered and when to apply each set of power parameters during the electrokinetic dewatering process. Furthermore, the control system automatically adjusts the applied power specification throughout the course of the dewatering process to account for the changing properties of the deposit. The control system determines the applied power specifications and adjustments to be made to them by simulating the electrokinetic dewatering process using a simulator which incorporates the latest measurements of the electrical, physical and chemical properties of the deposit being dewatered. The control system uses the simulator to forecast the dewatering performances of alternative applied power specifications and selects and applies the alternative applied power specification having a forecast dewatering performance that satisfies one or more switching criteria set by an operator.

US Patent:

20180229153, Aug 16, 2018

Filed:

Sep 25, 2015

Appl. No.:

15/514295

Inventors:

- Toronto, CA
Paul Garcia - Temecula CA, US
Doug Kimzey - Knoxville TN, US
Ben HARRIS - Fallbrook CA, US
Robert C. PARROTT - Knoxville TN, US
James MICAK - Aurora, Ontario, CA
Robert FALERO - Corona CA, US

International Classification:

B01D 17/06
B03C 5/02
C10G 1/04
C02F 1/461

Abstract:

A method of electro treating tailings in a containment structure to cause a separation of at least some water from said tailings and a consolidation and compaction of at least some solid particles is shown. The method includes placing a plurality of first electrodes in the tailings to be treated generally along one side of a predetermined volume and placing a plurality of second electrodes in the tailings to be treated generally along an opposite side of said volume to the plurality of first electrodes, said first and second electrodes being spaced apart by a predetermined distance. The next step is applying a treatment current across said distance between said spaced first and second electrodes to create an electrical field which causes solids to consolidate at one of said plurality of first and second electrodes; and creating a geotechnical structure within said volume comprised of dewatered solids consolidated from said tailings around one of said electrodes. The geotechnical structure may be a layer at the bottom of the containment structure, along a side of the containment structure or across the top of a containment structure.

US Patent:

20150225263, Aug 13, 2015

Filed:

Apr 23, 2015

Appl. No.:

14/694302

Inventors:

- Toronto, CA
Bruce S. Beattie - Vista CA, US
Robert C. Parrott - Knoxville TN, US
James Micak - Aurora, CA
Paul Garcia - Temecula CA, US
Doug Kimzey - Knoxville TN, US

International Classification:

C02F 1/463

Abstract:

A method is provided of treating liquid tailings using electro-kinetics by creating a variable voltage between two electrodes in the tailings. Flocculation and water release from the tailings is induced by establishing an electrical field between the two electrodes. The electrodes are connected to an electrical power source having the variable voltage to create a cathode and an anode. Compacting the flocculation solids and removing further water released from the compacting solids allows for the creation of a compacted material having a desired load bearing capacity.

US Patent:

20150096901, Apr 9, 2015

Filed:

Oct 7, 2013

Appl. No.:

14/047730

Inventors:

- Concord, CA
Paul Garcia - Temecula CA, US
Doug Kimzey - Knoxville TN, US
Ben Harris - Fallbrook CA, US
Robert C. Parrott - Knoxville TN, US
James Micak - Ontario, CA

Assignee:

DPRA CANADA INCORPORATED - Concord

International Classification:

C02F 1/463

US Classification:

205742, 204660

Abstract:

There is a method of facilitating the consolidation of fine tailings through the application of an electrical current. The fine tailings include a combination of at least some water and some clay particles. Electrodes are placed into contact with the fine tailings. An AC voltage with a DC offset is applied to the electrodes to separate water from the clay particles and to induce movement of the separated water to a collection area. The separated clay particles can consolidate more readily than unseparated clay particles. In an embodiment, the fine tailings are mixed fine oil sands extraction tailings which include residual hydrocarbons. In an embodiment, the application of an AC voltage with a DC offset across the electrodes includes applying an AC voltage of about 1 V/cm and a DC offset of about V/cm.