EP3055254A4 - Method and apparatus for treating tailings using an ac voltage with a dc offset - Google Patents

Method and apparatus for treating tailings using an ac voltage with a dc offset Download PDF

Info

Publication number
EP3055254A4
EP3055254A4 EP14852686.6A EP14852686A EP3055254A4 EP 3055254 A4 EP3055254 A4 EP 3055254A4 EP 14852686 A EP14852686 A EP 14852686A EP 3055254 A4 EP3055254 A4 EP 3055254A4
Authority
EP
European Patent Office
Prior art keywords
offset
voltage
treating tailings
tailings
treating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP14852686.6A
Other languages
German (de)
French (fr)
Other versions
EP3055254A1 (en
Inventor
Bruce S. Beattie
Paul Garcia
Doug Kimzey
Ben Harris
Robert C. Parrott
James Micak
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Electro-Kinetic Solutions Inc
Original Assignee
Electro-Kinetic Solutions Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CA2829566A external-priority patent/CA2829566C/en
Priority claimed from US14/047,730 external-priority patent/US9428408B2/en
Application filed by Electro-Kinetic Solutions Inc filed Critical Electro-Kinetic Solutions Inc
Publication of EP3055254A1 publication Critical patent/EP3055254A1/en
Publication of EP3055254A4 publication Critical patent/EP3055254A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/06—Separation of liquids from each other by electricity
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
    • C02F1/4696—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrophoresis
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
    • C02F2201/46105—Details relating to the electrolytic devices
    • C02F2201/4612—Controlling or monitoring
    • C02F2201/46125—Electrical variables
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
    • C02F2201/46105—Details relating to the electrolytic devices
    • C02F2201/4612—Controlling or monitoring
    • C02F2201/46125—Electrical variables
    • C02F2201/4613—Inversing polarity

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Molecular Biology (AREA)
  • Health & Medical Sciences (AREA)
  • Electrochemistry (AREA)
  • Thermal Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
EP14852686.6A 2013-10-07 2014-10-06 Method and apparatus for treating tailings using an ac voltage with a dc offset Withdrawn EP3055254A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CA2829566A CA2829566C (en) 2013-10-07 2013-10-07 Method and apparatus for treating tailings using an ac voltage with a dc offset
US14/047,730 US9428408B2 (en) 2013-10-07 2013-10-07 Method and apparatus for treating tailings using an AC voltage with a DC offset
PCT/CA2014/000728 WO2015051444A1 (en) 2013-10-07 2014-10-06 Method and apparatus for treating tailings using an ac voltage with a dc offset

Publications (2)

Publication Number Publication Date
EP3055254A1 EP3055254A1 (en) 2016-08-17
EP3055254A4 true EP3055254A4 (en) 2017-10-11

Family

ID=52812388

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14852686.6A Withdrawn EP3055254A4 (en) 2013-10-07 2014-10-06 Method and apparatus for treating tailings using an ac voltage with a dc offset

Country Status (4)

Country Link
EP (1) EP3055254A4 (en)
CN (1) CN105813986A (en)
AU (1) AU2014334447A1 (en)
WO (1) WO2015051444A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108128856B (en) * 2018-02-05 2019-06-04 中国矿业大学 A system for controlling the migration of heavy metal elements in goaf filling by using the principle of electrophoresis
CA3147378A1 (en) * 2022-02-01 2023-08-01 Electro-Kinetic Solutions Inc. An electrokinetic method and system for dewatering soft soils, slurries, colloidal suspensions and other deposits
CN118997758B (en) * 2024-08-08 2025-08-19 中国科学院广州地球化学研究所 Method and system for mining rare earth ore by adopting transformed direct current electric field

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3767046A (en) * 1970-12-07 1973-10-23 K Hartkorn Liquid purification method
DE3824289A1 (en) * 1988-05-27 1989-11-30 Battelle Institut E V METHOD AND DEVICE FOR CONDITIONING HEAVY DRAINAGE SLUDGE

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2518124A1 (en) * 1981-12-11 1983-06-17 Pechiney Aluminium FLOATING CATHODIC ELEMENTS BASED ON ELECTROCONDUCTIVE REFRACTORY FOR THE PRODUCTION OF ALUMINUM BY ELECTROLYSIS
CN1888023A (en) * 2006-07-17 2007-01-03 威海海和科技有限责任公司 Electric field method and apparatus for dewatering and desalting raw oil
CA2736675C (en) * 2011-04-07 2014-08-12 Dpra Canada Incorporated Electrokinetic process and apparatus for consolidation of oil sands tailings
CA2758872A1 (en) * 2011-04-07 2012-10-07 Dpra Canada Incorporated Electrokinetic process and apparatus for consolidation of oil sands tailings
CA2741020C (en) * 2011-05-17 2012-02-14 James S. Adamson Clarification of tailing ponds using electrophoresis
JP2013013881A (en) * 2011-06-30 2013-01-24 Yoshiaki Shirakata Vacuum electrophoretic high-frequency dehydration treatment apparatus
CN103194597B (en) * 2013-04-20 2015-06-03 北京科技大学 In-situ leaching method of electric field strengthened fine grain tailings

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3767046A (en) * 1970-12-07 1973-10-23 K Hartkorn Liquid purification method
DE3824289A1 (en) * 1988-05-27 1989-11-30 Battelle Institut E V METHOD AND DEVICE FOR CONDITIONING HEAVY DRAINAGE SLUDGE

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2015051444A1 *

Also Published As

Publication number Publication date
WO2015051444A1 (en) 2015-04-16
AU2014334447A1 (en) 2016-05-19
CN105813986A (en) 2016-07-27
EP3055254A1 (en) 2016-08-17

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RIN1 Information on inventor provided before grant (corrected)

Inventor name: HARRIS, BEN

Inventor name: PARROTT, ROBERT C.

Inventor name: BEATTIE, BRUCE S.

Inventor name: GARCIA, PAUL

Inventor name: KIMZEY, DOUG

Inventor name: MICAK, JAMES

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Ipc: C02F 1/469 20060101ALI20170529BHEP

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