US20040026238A1 - Water treatment device - Google Patents

Water treatment device Download PDF

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Publication number
US20040026238A1
US20040026238A1 US10/312,609 US31260903A US2004026238A1 US 20040026238 A1 US20040026238 A1 US 20040026238A1 US 31260903 A US31260903 A US 31260903A US 2004026238 A1 US2004026238 A1 US 2004026238A1
Authority
US
United States
Prior art keywords
water
accordance
treated
electrode chambers
housing
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.)
Abandoned
Application number
US10/312,609
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English (en)
Inventor
Dietmar Ende
Michael Sautter
Hans Sautter
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.)
PERMA-TRADE WASSERTECHNIK GmbH
Original Assignee
PERMA-TRADE WASSERTECHNIK GmbH
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
Application filed by PERMA-TRADE WASSERTECHNIK GmbH filed Critical PERMA-TRADE WASSERTECHNIK GmbH
Assigned to PERMA-TRADE WASSERTECHNIK GMBH reassignment PERMA-TRADE WASSERTECHNIK GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ENDE, DIETMAR, SAUTTER, HANS, SAUTTER, MICHAEL
Publication of US20040026238A1 publication Critical patent/US20040026238A1/en
Abandoned legal-status Critical Current

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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
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • C02F1/46114—Electrodes in particulate form or with conductive and/or non conductive particles between them

Definitions

  • This invention relates to a device for treating water, having a housing with conduit areas for conducting the water to be treated, wherein at least one first and one second electrode is arranged in the housing, the first and second electrodes are alternatively positively and negatively polarized, and an electrically conductive bulk material is placed into the housing.
  • a conventional device is known from PCT International Publication WO 98/16477. This device is used for reducing, or preventing, the formation of scale in aqueous solutions.
  • a housing is used, into which a cartridge is inserted.
  • the cartridge has two electrodes, each of which is arranged in an electrode chamber.
  • a bipolar electrode is arranged in the area between the electrodes, which is embodied as a fixed bed.
  • the fixed bed is formed by a bulk material which has electrically conducting carbon particles and non-conducting insulating particles, for example pebbles, glass or plastic bodies.
  • the non-conducting insulating particles insulate the carbon particles from each other, so that the formation of short circuits is prevented.
  • a voltage is applied to the bipolar electrode via the electrodes.
  • the liquid to be treated is conducted through the bipolar electrode.
  • the calcium contained in the liquid is precipitated in the form of calcite at the negative pole areas of the carbon particles.
  • the polarity of the electrodes is regularly reversed.
  • first and second electrodes housed in first and second electrode chambers, which are separated from each other and are electrically insulated from each other by one or several insulating bodies.
  • Each of the electrode chambers is filled by bulk material of a uniform granulate, and the insulating bodies are permeable to the water to be treated, but impermeable to the granulated bulk material.
  • Polarized areas are created in the electrode chambers, in which a single fixed polarization exists for a defined length of time. With this division into unipolar areas, the homogeneously composed bulk material of this invention can be used, wherein a segregation as in the prior art is not a problem. It is thus possible to assure dependable operation because of this combination of characteristics.
  • the bulk material can include, for example, granulated carbon, in particular activated charcoal, which is introduced into the electrode chamber in the form of a fixed bed.
  • the insulating bodies are formed as bulkhead walls and have a screen-like passage area for the water to be treated, wherein the sizes of the openings forming the passage areas are less than the granule diameters of the particles of the bulk material.
  • the first and second electrodes can be embodied rod-like and can be surrounded over their entire length by the bulk material.
  • a conduit area which is surrounded by an area which receives the electrode chambers is arranged in the housing.
  • the conduit area is in spatial connection with the electrode chambers via the openings, and the side of the electrode chambers which faces away from the conduit area in the radial direction is covered by a liquid-permeable shell.
  • a conduit section adjoins the shell in the housing.
  • the conduit area can be selected such that initially the water to be treated is introduced through the central conduit section and then flows through the electrode chambers and the peripheral conduit area.
  • a reverse flow is also conceivable. A re-mixing of the electrolysis products resulting from the treatment is avoided with these types of flow conduction.
  • a device in accordance with this invention is distinguished because the electrode chambers are separated from each other by insulating bodies which substantially extend in the flow direction of the water to be treated. In this case the liquid to be treated flows parallel through the individual electrode chambers.
  • Electrode chambers in series so that they are separated from each other by insulating bodies extending transversely with respect to the flow direction of the water to be treated, and the electrode chambers are arranged one behind the other in the flow direction.
  • an oxidation zone through which the water treated in the associated electrode chamber, or in several electrode chambers is conducted, is arranged behind at least one of the electrode chambers.
  • a fixed bed electrode which, for example, includes carbon particles and has a positive polarity, can be connected downstream as the oxidation zone.
  • a calcite precipitation takes place only near or in the area of the negatively polarized electrode chambers during the operation.
  • a device in accordance with this invention can be designed so that different volume flows of the water to be treated flow through the electrode chambers of different polarization.
  • the length of polarization of the cathodic and the anodic phases of at least one of the electrodes is selected to be different. In this case the water to be treated remains longer in the electrode chamber with negative polarization.
  • a device can be designed so that the electrodes are arranged at least partially concentrically with respect to the conduit area arranged in the housing.
  • the electrodes, which are arranged on a graduated circle around the conduit area are distributed equidistantly with respect to each other in the ambient direction.
  • the water to be treated flows through a magnetic treatment device prior to entering the housing.
  • FIG. 1 shows a device for the treatment of water in a lateral view and in vertical section
  • FIG. 2 shows the device in FIG. 1 but in horizontal section
  • FIG. 3 is a horizontal section taken through another embodiment of a device for the treatment of water, which differs from FIGS. 1 and 2.
  • FIG. 1 A device, for the treatment of water, which has a tube-shaped housing 25 is shown in FIG. 1.
  • the tube-shaped housing 25 is closed off by a support 10 .
  • the support 10 has a flange plate 11 which is in contact with the lower front face of the housing 25 .
  • the flange plate 11 forms a collar 12 , on which the front face of the housing 25 is seated.
  • a seal 13 is arranged near or in the area of the collar 12 .
  • the seal 13 seals the interior of the housing 25 against the surroundings.
  • the support 10 In the area adjoining the collar 12 , the support 10 has a shoulder 14 .
  • the shoulder 14 is used for receiving a tube-shaped shell 23 .
  • the tube-shaped shell 23 is centered and aligned on a cylindrical protrusion 15 of the support 10 .
  • the protrusion 15 projects into the interior surrounded by the shell 23 .
  • a conduit section 20 is arranged in the center of the shell 23 and is the form of a tube. In its casing, the conduit section 20 has a plurality of openings.
  • the conduit section 20 is maintained on a blind bore 18 of the support 10 .
  • four electrodes 22 . 1 , 22 . 2 are arranged in the area between the conduit section 20 and the shell 23 . In this case the electrodes 22 . 1 , 22 . 2 are arranged concentrically with respect to the conduit section 20 , and each is offset by 90° from the other.
  • the support 10 has electrode seats 17 in the form of bores for fixing the electrodes 22 . 1 , 22 . 2 in place. Contacting the electrodes 22 . 1 , 22 . 2 takes place via contact springs 19 . 2 , which are inserted in a threaded receiver 16 which terminates in the electrode seat 17 . A contacting element 19 . 1 is screwed into the threaded receiver 16 and presses the contact springs 19 . 2 against the electrodes 22 . 1 , 22 . 2 and can be connected to a power supply on the exterior of the housing 25 .
  • the remaining annular space between the conduit section 20 and the shell 23 is filled with a bulk material of electrically conductive material, for example activated charcoal.
  • the conduit section 20 has openings and is therefore embodied in a screen-like manner.
  • the shell 23 is also embodied in a screen-like manner.
  • the openings of the screens are of such a size that the particles of the bulk material cannot leave the space between the shell 23 and the conduit section 20 , but that an electrical insulation between the adjoining areas is assured.
  • a cap 30 is pushed on the head of the shell 23 .
  • the cap 30 has a shoulder 33 for this purpose, which receives the front face of the shell 23 .
  • the cap 30 has electrode seats 34 , which are embodied in the manner of a blind bore and in which the ends of the electrodes 22 . 1 , 22 . 2 are received.
  • a conduit section 36 passes through the center of the cap 30 and terminates in a widened seat 35 .
  • the end of the conduit section 20 is received in the seat 35 .
  • the cap 30 On its side facing away from the conduit section 20 , the cap 30 has a shoulder 31 , on which a cover 40 is sealingly held by a seal 32 .
  • the cover 40 encloses an outer chamber 41 , which is spatially connected with a conduit area 24 formed between the housing 25 and the shell 23 .
  • the cover 40 has an inner chamber 42 , which is spatially connected with the conduit section 36 of the cap 30 .
  • the support 10 is inserted into the housing 25 and is fastened in a suitable pressure-proof manner. Then, the shell 23 , the electrodes 22 . 1 , 22 . 2 and the conduit section 20 are fastened on the support 10 from the direction of the top of the housing 25 . Thereafter the bulk material can be inserted. Finally, the cap 30 is inserted into the housing 25 on the cover side. Now the open top of the housing 25 can be closed with the cover 40 .
  • the cover 40 has a circumferential flange 43 .
  • the flange 43 rests on a radially outward oriented rim 37 of the housing 25 , with a seal 44 placed between them.
  • a screw ring 45 is used for connecting the cover 40 with the housing 25 .
  • An interior thread 47 of the screw ring 45 can be screwed on an exterior thread of the cover 40 . In this case the screwing-on movement is limited by a detent 46 of the screw ring 45 , which contacts the underside of the rim 37 .
  • the space between the conduit section 20 and the shell 23 is divided into four electrode chambers 21 . 1 , 21 . 2 .
  • An electrode 22 . 1 , 22 . 2 is arranged in each of the electrode chambers 21 . 1 , 21 . 2 .
  • the division of the electrode chambers 21 . 1 , 21 . 2 takes place by insulating bodies 50 , which are embodied as a bulkhead wall. These insulating bodies 50 are permeable to liquid media, in particular aqueous solutions. But the insulating bodies 50 are impermeable to the granules of the bulk material.
  • the insulating bodies 50 are fixed in place in seats 51 of the shell 23 , or of the conduit section 20 .
  • the seats 51 prevent a displacement of the insulating bodies 50 and they dependably prevent an electrically conducting connection between the individual electrode chambers 21 . 1 , 21 . 2 .
  • the calcite is deposited on the individual carbon particles of the bulk material.
  • a change in polarization occurs after a defined period of time.
  • the electrodes 22 . 1 are negatively polarized, the electrodes 22 . 2 positively. Because of the polarization reversal, the calcite deposits at the carbon particles are removed and are floated out like germs.
  • the treated water leaves the electrode chambers 21 . 1 , 21 . 2 through the shell 23 in the radial direction. There, it flows to the conduit area 24 and can then be fed into a water main network via the outer chamber 41 of the cover 40 .
  • the above described flow direction can be reversed, so that the water to be treated is first supplied to the outer chamber 41 . In that case the water leaves the device through the inner chamber 42 .
  • the flow passes parallel through the electrode chambers 21 . 1 , 21 . 2 . It is possible to provide a series connection of the electrode chambers 21 . 1 , 21 . 2 .
  • a ring-shaped insulating body 50 which is arranged concentrically in relation to the conduit section 20 and the shell 23 , is used in place of the radially arranged insulating bodies 50 .
  • Two electrode chambers 21 . 1 , 21 . 2 which are embodied in a ring shape, are thus formed.
  • Respectively four electrodes 22 . 1 , 22 . 2 are arranged in the individual electrode chambers 21 .
  • the individual electrodes are again arranged offset by 90° from each other. Based on this arrangement of the electrodes 22 . 1 , 22 . 2 , an optimal and even flow density is achieved within the individual electrode chambers 21 . 1 and 21 . 2 .
  • the water to be treated flows in through the conduit section 20 and arrives radially through the shell 23 of the conduit section 20 into the first electrode chamber 21 . 2 . Then the water flows through the liquid-permeable insulating body 50 and reaches the second electrode chamber 21 . 1 . From here the water reaches the conduit area 24 through the shell 23 the same way as in the embodiment in accordance with FIGS. 1 and 2.
  • the device in accordance with FIG. 3 is identical to the device in accordance with FIGS. 1 and 2. There is only a different arrangement of the electrodes 22 . 1 , 22 . 2 and of the electrode chambers 21 . 1 , 21 . 2 .
  • the electrodes 22 . 2 can be negatively polarized in the electrode chamber 21 . 1 . Accordingly a calcite precipitation occurs in the bulk material kept in the electrode chamber 21 . 1 . The water then flows through the second electrode chamber 21 . 1 and flows off via the shell 23 . A polarization change occurs after a defined period of time. The electrodes 22 . 2 then are positively polarized, the electrodes 22 . 1 negatively. Now the calcite precipitation occurs in the bulk material of the electrode chamber 21 . 1 . During this state of the polarization, the calcite deposited on the carbon particles of the bulk material in the electrode chamber 31 . 2 is removed and flushed out with the water to be treated. A change in polarization again takes place after a defined length of time.
  • a polarization change of more than 30 seconds provides good efficiency. If a shorter period of time is used, the effectiveness is reduced and with it the efficiency of the device.
  • a flow meter can be used for optimizing the operation.
  • the flow meter determines the amount of water which flows through and is to be treated continuously or at time intervals.
  • the treatment current strength is then regulated as a function of this determined value.
  • a flow meter can also be used alternatively or in addition as an indicator of the time for maintenance.
  • a signal is emitted as soon as a defined amount of water is registered, which indicates the need for replacing the granular bulk material.
  • two or more groups of electrodes are formed. Initially, only one of the groups is operated until it is no longer sufficiently functional because of aging and/or output. Then a switch is made to a second group, or the latter is hooked up.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Physical Water Treatments (AREA)
US10/312,609 2000-06-28 2001-05-25 Water treatment device Abandoned US20040026238A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10030340.4 2000-06-28
DE10030340A DE10030340C2 (de) 2000-06-28 2000-06-28 Vorrichtung zum Behandeln von Wasser
PCT/EP2001/005982 WO2002000555A1 (de) 2000-06-28 2001-05-25 Vorrichtung zum behandeln von wasser

Publications (1)

Publication Number Publication Date
US20040026238A1 true US20040026238A1 (en) 2004-02-12

Family

ID=7646371

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/312,609 Abandoned US20040026238A1 (en) 2000-06-28 2001-05-25 Water treatment device

Country Status (11)

Country Link
US (1) US20040026238A1 (de)
EP (1) EP1301437B1 (de)
JP (1) JP2004501749A (de)
AT (1) ATE281413T1 (de)
AU (2) AU2001269038B2 (de)
CA (1) CA2417096A1 (de)
DE (2) DE10030340C2 (de)
DK (1) DK1301437T3 (de)
ES (1) ES2230332T3 (de)
PT (1) PT1301437E (de)
WO (1) WO2002000555A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010082099A2 (en) * 2009-01-15 2010-07-22 Watsol (Pty) Ltd Water treatment
US20120255872A1 (en) * 2011-04-07 2012-10-11 Smith Gregory J Electrokinetic Process And Apparatus For Consolidation Of Oil Sands Tailings
US9428408B2 (en) 2013-10-07 2016-08-30 Dpra Canada Incorporated Method and apparatus for treating tailings using an AC voltage with a DC offset
IT202100011924A1 (it) * 2021-05-10 2022-11-10 Treelium Sa Dispositivo elettrochimico di trattamento acqua

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005010512A1 (de) * 2005-03-08 2006-09-14 Judo Wasseraufbereitung Gmbh Vorrichtung und Verfahren zur elektrolytischen Behandlung von Wasser beziehungsweise wässrigen Lösungen
DE102006005415A1 (de) * 2006-02-03 2007-08-16 Perma-Trade Wassertechnik Gmbh Wasserbehandlungseinrichtung
AT505227B1 (de) 2007-05-09 2012-07-15 Siemens Vai Metals Tech Gmbh Verfahren zur herstellung von formlingen
DE102009022437B4 (de) 2009-05-23 2018-05-09 Perma-Trade Wassertechnik Gmbh Vorrichtung zur Behandlung von Wasser
DE102012101031B4 (de) 2012-02-08 2019-02-14 Perma-Trade Wassertechnik Gmbh Verfahren zur Vermeidung von Kalkansatz
DE102015008743A1 (de) 2015-07-07 2017-01-12 Norbert Pautz Verfahren und Vorrichtung einer elektrolytischen Kalkabscheidung, mit selektiver Abreicherung von Ionen, aus belasteten Prozess- und Abwässern

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3915822A (en) * 1974-05-22 1975-10-28 Grace W R & Co Electrochemical system with bed sections having variable gradient
US4601799A (en) * 1982-08-27 1986-07-22 General Motors Corporation Electric field oil filter and method of filtering
US5822502A (en) * 1996-09-20 1998-10-13 Seiko Epson Corporation Cluster dither ink duty limit control
US5958205A (en) * 1997-05-21 1999-09-28 Vipur Apparatus for a fluid filtration system
US6267885B1 (en) * 1995-11-28 2001-07-31 Austech Pty., Ltd. Liquid sterilization apparatus
US6277265B1 (en) * 1995-07-17 2001-08-21 Apogee Corporation Apparatus and method for electrocoriolysis, the separation of ionic substances from liquids in the electrodynamic mode

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3915882A (en) * 1972-11-10 1975-10-28 Procter & Gamble Soap compositions
JPS55145185A (en) * 1979-04-26 1980-11-12 Nanao Kogyo Kk Reaction apparats for electrolysis
AU728729B2 (en) * 1996-10-15 2001-01-18 Andreas Weissenbacher Method of reducing or preventing scaling
DE19911875A1 (de) * 1999-03-17 2000-09-28 Judo Wasseraufbereitung Vorrichtung zur elektrolytischen Behandlung von Wasser bzw. wässrigen Lösungen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3915822A (en) * 1974-05-22 1975-10-28 Grace W R & Co Electrochemical system with bed sections having variable gradient
US4601799A (en) * 1982-08-27 1986-07-22 General Motors Corporation Electric field oil filter and method of filtering
US6277265B1 (en) * 1995-07-17 2001-08-21 Apogee Corporation Apparatus and method for electrocoriolysis, the separation of ionic substances from liquids in the electrodynamic mode
US6267885B1 (en) * 1995-11-28 2001-07-31 Austech Pty., Ltd. Liquid sterilization apparatus
US5822502A (en) * 1996-09-20 1998-10-13 Seiko Epson Corporation Cluster dither ink duty limit control
US5958205A (en) * 1997-05-21 1999-09-28 Vipur Apparatus for a fluid filtration system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010082099A2 (en) * 2009-01-15 2010-07-22 Watsol (Pty) Ltd Water treatment
WO2010082099A3 (en) * 2009-01-15 2011-01-27 Watsol (Pty) Ltd Water treatment
US20120255872A1 (en) * 2011-04-07 2012-10-11 Smith Gregory J Electrokinetic Process And Apparatus For Consolidation Of Oil Sands Tailings
US9896356B2 (en) 2011-04-07 2018-02-20 Electro-Kinetic Solutions Inc. Electrokinetic process for consolidation of oil sands tailings
US9428408B2 (en) 2013-10-07 2016-08-30 Dpra Canada Incorporated Method and apparatus for treating tailings using an AC voltage with a DC offset
IT202100011924A1 (it) * 2021-05-10 2022-11-10 Treelium Sa Dispositivo elettrochimico di trattamento acqua
WO2022238861A1 (en) * 2021-05-10 2022-11-17 Treelium Sa Electromechanical device for treating water

Also Published As

Publication number Publication date
ES2230332T3 (es) 2005-05-01
AU2001269038B2 (en) 2006-10-05
DE10030340C2 (de) 2003-08-14
CA2417096A1 (en) 2003-01-23
PT1301437E (pt) 2005-02-28
EP1301437B1 (de) 2004-11-03
EP1301437A1 (de) 2003-04-16
DE10030340A1 (de) 2002-01-17
WO2002000555A1 (de) 2002-01-03
DE50104412D1 (de) 2004-12-09
DK1301437T3 (da) 2005-01-31
ATE281413T1 (de) 2004-11-15
JP2004501749A (ja) 2004-01-22
AU6903801A (en) 2002-01-08

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Legal Events

Date Code Title Description
AS Assignment

Owner name: PERMA-TRADE WASSERTECHNIK GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ENDE, DIETMAR;SAUTTER, MICHAEL;SAUTTER, HANS;REEL/FRAME:014233/0027

Effective date: 20030109

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION