WO2006032095A1 - Boîtier d'électrode démontable - Google Patents

Boîtier d'électrode démontable

Info

Publication number
WO2006032095A1
WO2006032095A1 PCT/AU2005/001449 AU2005001449W WO2006032095A1 WO 2006032095 A1 WO2006032095 A1 WO 2006032095A1 AU 2005001449 W AU2005001449 W AU 2005001449W WO 2006032095 A1 WO2006032095 A1 WO 2006032095A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
electrode
outer housing
electrode housing
cell
Prior art date
Application number
PCT/AU2005/001449
Other languages
English (en)
Inventor
Joseph Tigani
Terence G. Usher
Original Assignee
Aquenox Pty Ltd
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 AU2004905480A external-priority patent/AU2004905480A0/en
Application filed by Aquenox Pty Ltd filed Critical Aquenox Pty Ltd
Publication of WO2006032095A1 publication Critical patent/WO2006032095A1/fr

Links

Classifications

    • 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
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/463—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrocoagulation
    • 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
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • C02F2001/46119—Cleaning the electrodes
    • 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
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • C02F2001/46128—Bipolar electrodes

Definitions

  • This invention relates to a demountable electrode housing or electrode assembly which may be releasably retained within an outer housing connected to a source of electrolyte or liquid requiring to be processed by electrode assembly.
  • an electrocoagulation cell containing a plurality of electrodes was an electrocoagulation cell described in International Publication 2004/046051.
  • a plurality of electrodes which comprised unipolar or electrically connected electrodes and bipolar or non electrically connected electrodes was retained within an electrocoagulation cell comprising a plurality of individual longitudinal grooves or channels wherein an opposed pair of channels on each side of the electrocoagulation cell releasably retained a respective electrode.
  • Each electrode was provided with an upstanding integral tab having a slot for retaining a busbar assembly comprising a threaded bar functioning as a means for electrically connecting each electrode to a power supply electrically connected to the threaded bar by power leads releasably attached to the threaded bar at each end thereof.
  • unipolar electrodes were releasably attached to the threaded bar by nuts located on each side of an individual electrode. This arrangement was advantageous because an entire set of unipolar electrodes could be removed from the electrocoagulation cell for cleaning and maintenance and replaced by another set of electrodes connected to each other by a similar busbar assembly.
  • the invention therefore provides an electrocoagulation cell having an outer housing and a demountable electrode housing which is releasably retained within the outer housing whereby said electrode housing containing an electrode assembly may be removed from the outer housing for cleaning and maintenance when required.
  • the outer housing of the EC cell may comprise an inlet for passage of influent which may be wastewater requiring treatment or processing by the EC cell. However this may not be necessary if the electrode housing is provided with an inlet.
  • the outer housing may also be provided with an outlet if desired.
  • the outer housing may also comprise an upper compartment having retaining means for the electrode housing exemplified by a retaining flange and/or a pair of opposed bearing walls surrounding an aperture for insertion of the electrode housing.
  • the recess may be located in an internal partition of the outer housing which separates the upper compartment from a lower compartment.
  • the outer housing may also be provided with an open top or removable lid or cover for insertion of the electrode housing when required.
  • the lower compartment has an open side wherein the electrode housing may rest on a base of the outer housing and have an inlet for reception of waste water which extends through an open side of the outer housing.
  • the electrode housing is preferably elongate and may then have a bottom or base wall which contacts the base of the outer housing.
  • the outer housing may have one or more bearing walls which define an internal recess for the electrode housing with an inlet for the electrode housing located in the recess.
  • an internal partition separating the outer housing into an upper compartment and lower compartment.
  • attachment means between the outer housing and the electrode housing such as by the use of fasteners extending between co-aligned apertures between the electrode housing and the outer housing.
  • fasteners extending between co-aligned apertures between the electrode housing and the outer housing.
  • attachment means may be avoided if the electrode housing is of sufficient weight to be securely retained within the outer housing.
  • a method of cleaning or maintenance of an EC cell which includes the steps of: (i) removing a first electrode housing containing a set of electrodes which require cleaning from an EC cell housing or outer housing; and
  • the method of the invention will also involve replacing the electrode housing used in step (ii) when their electrodes become soiled or when they require cleaning by the first electrode housing after it has undergone cleaning and maintenance.
  • the electrodes used in the electrode housing of the invention they are preferably removable from the electrode housing and in one example an electrode assembly may be used as described in WO 2004/046051 which publication is reproduced herein in its entirety.
  • This electrode assembly comprises a busbar arrangement attaching each electrode to a threaded bar by fasteners inclusive of nuts and washers.
  • FIG 1 is a corner perspective view of the electrocoagulation cell or outer housing with the electrode housing removed for clarity;
  • FIG 2 is another perspective view of the outer housing of FlG 1 from another corner;
  • FIG 3 is another perspective view of the outer housing from the top thereof containing the electrode housing;
  • FIG 4 is a similar view to FIG 1 showing the electrode housing retained within the outer housing;
  • FIG 5 is a top plan view of the electrode housing containing a number of electrode plates
  • FIG 6 is a perspective view of the electrode housing and one assembly of electrode plates attached to each other by a busbar;
  • FIG 7 is a perspective view of the electrode housing containing two spaced busbar assemblies interconnecting separate arrays of electrode plates with each array partially removed from the electrode housing for clarity;
  • FIG 8 is a top plan view of the arrangement of electrode housing and two busbar assemblies shown in FIG 7;
  • FIG 9 is a top plan view of an electrocoagulation cell that has been modified to the outer housing shown in FIGS 1 to 4;
  • the housing 10 has an open top 12, a front wall 13, a rear wall 14, base 15, drain aperture 16, upper side wall 18, lower side wall 19, flange 20, outlet elbow fitting 21 , outlet pipe 22, conduit 23 which extends through upper side wall 18 for conveying electrical connection leads 56 and 57 to electrode plates 52 as described hereinafter and electrical conduit 24.
  • Cell 9 is supported by mounting platform 25 supported by struts 26.
  • Electrode housing has a lower part 40A that extends into lower compartment 39 of outer housing after passing through aperture 65 as best shown in FIG 4.
  • the electrode housing 40 shown in FIGS 3, 4, 5, 6, 7 and 8 has an open top compartment
  • Electrode housing 40 also has an elongate part 51 which occupies the major part of the length of housing 40 which has an internal compartment 61 occupied by electrode plates 52. As shown in FIG 5 internal compartment 61 has another side 37 opposite to wall 45 also having channels 47 and spacers 46.
  • Electrode housing 40 there is also provided in FIG 6 adjacent electrode housing 40 a plurality of electrode plates 52 each having tabs 53 adjacent top edges 54. Each tab has a slot 38 best shown in FIG 8 through which extends busbar assembly 33 having threaded bar 55A.
  • Bar 55A is retained in each slot of electrode plates 52 so that each of electrode plates are aligned in a series alignment.
  • the bar 55A is maintained in position to electrode plates 52 by securing means comprising nuts 59 and washers 60.
  • each nut 59 is screw threadedly engaged to bar 55A.
  • FIGS 3, 7 and 8 there is shown another busbar assembly 34 having threaded bar 55 which are also connected to slots 38 of electrode plates 52 wherein bar 55A is maintained in position by nuts 59 and washers 60.
  • each busbar assembly 33 and 34 is connected by lead connections 56 and 57 which are each connected to a power source (not shown).
  • Each lead connection 56 and 57 extends into conduit 58 which is attached to side wall component 18 of cell 10 by retainer
  • Each busbar assembly 33 and 34 is as previously described in International Publication WO 2004/046051 and form connected electrodes or unipolar electrodes 52A as shown in FIG 7. These electrodes may be cationic or anionic depending upon the polarity of the power supplied through connections 56 and 57.
  • the remaining unconnected electrodes 52B as shown in FIG 7 are bipolar and are charged by the energised electrolytic solution passing through cell 9.
  • influent may pass through inlet 62 of electrode housing 40 shown in FIG 4 through inlet conduit 63.
  • the influent is then passed through electrodes 52 in internal compartment 61 of electrode housing 40 before passing out of electrode housing 40 before occupying at least part of upper compartment 28 before exiting cell 9 through outlet aperture 31 and outlet pipe 22.
  • FIGS 1 to 4 show an alternative outer housing 10A having an inner compartment 28A which has a U-shaped rib 3OA surrounding a recess 65A.
  • Electrode housing 70 having opposed side edges 71 , planar region 72 and a locating flange 73 which hooks over top edge 77 of U shaped rib 3OA.
  • Recess 65 is provided with inlet 74.
  • Electrode housing 70 is also provided with channels 47 and ribs 46 for insertion of electrode plates (not shown).
  • the top of electrode housing 40A may be located 18-25mm below top edge 78 of outer housing 10A to allow for incorporation of busbar assemblies 33 and 34.
  • each of busbar assemblies 33 and 34 may be already connected to electrode plates 52A as described above. This only requires the attachment of connection leads 56 and 57 to respective busbar assemblies 33 and 34 to complete installation of electrode housing 40 within outer housing 10.
  • nonpolar or electrically connected plates may be installed in electrode housing 40 as one unit or as multiples thereof and bipolar or non-electrically connected electrodes may be installed within electrode housing 40 separately to the non polar electrodes.
  • electrode housing 40 may be releasably retained within housing 10 by appropriate releasable attachment means such as interference fit or by clamp means for example before installation of an electrode assembly comprising unipolar plates and associated busbar assemblies as well as bipolar electrode plates.
  • demountable electrode housing Another advantage of the demountable electrode housing is the fact that it ensures that electrodes are in the correct configuration and having the relevant spacing required. Sometimes it is only necessary to clean the electrode housing with the electrodes retained therein and thus it may only be necessary to remove the electrodes from the electrode housing at longer intervals.

Abstract

Cette invention porte sur une cellule d'électro-coagulation (9) ayant un boîtier extérieur (10, 10A) et un boîtier d'électrode démontable (40, 40A) qui est retenu de manière amovible à l'intérieur du boîtier extérieur (10, 10A), ce qui fait que le boîtier d'électrode (40, 40A) qui contient un ensemble électrode (33, 34, 52) peut être enlevé du boîtier extérieur (10, 10A) pour le dégagement et l'entretien quand cela est nécessaire.
PCT/AU2005/001449 2004-09-21 2005-09-21 Boîtier d'électrode démontable WO2006032095A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2004905480 2004-09-21
AU2004905480A AU2004905480A0 (en) 2004-09-21 Demountable electrode housing

Publications (1)

Publication Number Publication Date
WO2006032095A1 true WO2006032095A1 (fr) 2006-03-30

Family

ID=36089778

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2005/001449 WO2006032095A1 (fr) 2004-09-21 2005-09-21 Boîtier d'électrode démontable

Country Status (1)

Country Link
WO (1) WO2006032095A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008009973A1 (fr) * 2006-07-20 2008-01-24 Aguacure Limited Améliorations relatives à l'élimination de contaminants d'un fluide
WO2010046626A1 (fr) 2008-10-23 2010-04-29 Arminius Innovations Limited Appareil de traitement de fluides
WO2023073666A1 (fr) * 2021-10-30 2023-05-04 Ventiláqua, S.A Appareil électrochimique pour procédés d'électrocoagulation et son utilisation
IT202200009230A1 (it) * 2022-05-05 2023-11-05 Purity S R L Apparecchiatura di elettrocoagulazione per trattamenti di depurazione di liquidi contaminati

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4329211A (en) * 1981-03-17 1982-05-11 Westinghouse Electric Corporation Simplified maintenance electrocoagulator
US6337008B1 (en) * 2000-06-12 2002-01-08 Alcan International Limited Electrolysis cells
US6488835B1 (en) * 1998-02-27 2002-12-03 Scott Wade Powell Method for electrocoagulation of liquids
US6511480B1 (en) * 1998-10-23 2003-01-28 Sherwood Services Ag Open vessel sealing forceps with disposable electrodes
WO2003032452A1 (fr) * 2001-10-12 2003-04-17 Gilmore F William Chambre de reaction d'electrocoagulation et procede associe
US6663783B2 (en) * 2000-01-28 2003-12-16 Mckay Creek Technologies, Ltd. Electrochemical cell for removing contaminants from a wastewater stream

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4329211A (en) * 1981-03-17 1982-05-11 Westinghouse Electric Corporation Simplified maintenance electrocoagulator
US6488835B1 (en) * 1998-02-27 2002-12-03 Scott Wade Powell Method for electrocoagulation of liquids
US6511480B1 (en) * 1998-10-23 2003-01-28 Sherwood Services Ag Open vessel sealing forceps with disposable electrodes
US6663783B2 (en) * 2000-01-28 2003-12-16 Mckay Creek Technologies, Ltd. Electrochemical cell for removing contaminants from a wastewater stream
US6337008B1 (en) * 2000-06-12 2002-01-08 Alcan International Limited Electrolysis cells
WO2003032452A1 (fr) * 2001-10-12 2003-04-17 Gilmore F William Chambre de reaction d'electrocoagulation et procede associe

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008009973A1 (fr) * 2006-07-20 2008-01-24 Aguacure Limited Améliorations relatives à l'élimination de contaminants d'un fluide
WO2010046626A1 (fr) 2008-10-23 2010-04-29 Arminius Innovations Limited Appareil de traitement de fluides
WO2023073666A1 (fr) * 2021-10-30 2023-05-04 Ventiláqua, S.A Appareil électrochimique pour procédés d'électrocoagulation et son utilisation
IT202200009230A1 (it) * 2022-05-05 2023-11-05 Purity S R L Apparecchiatura di elettrocoagulazione per trattamenti di depurazione di liquidi contaminati

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