WO2011098301A1 - Procédé et dispositif pour traiter des liquides impurs, en particulier de l'eau, sans ajout de produits chimiques - Google Patents

Procédé et dispositif pour traiter des liquides impurs, en particulier de l'eau, sans ajout de produits chimiques Download PDF

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Publication number
WO2011098301A1
WO2011098301A1 PCT/EP2011/000715 EP2011000715W WO2011098301A1 WO 2011098301 A1 WO2011098301 A1 WO 2011098301A1 EP 2011000715 W EP2011000715 W EP 2011000715W WO 2011098301 A1 WO2011098301 A1 WO 2011098301A1
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WO
WIPO (PCT)
Prior art keywords
filter
unit
liquid
water
solids
Prior art date
Application number
PCT/EP2011/000715
Other languages
German (de)
English (en)
Inventor
Edwin Ell
Original Assignee
Aqua Vivendi 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
Application filed by Aqua Vivendi Ltd. filed Critical Aqua Vivendi Ltd.
Publication of WO2011098301A1 publication Critical patent/WO2011098301A1/fr

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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
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • 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
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • 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
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • 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
    • 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
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
    • 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
    • C02F2001/46152—Electrodes characterised by the shape or form
    • 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
    • C02F2103/008—Originating from marine vessels, ships and boats, e.g. bilge water or ballast water
    • 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
    • C02F2103/08—Seawater, e.g. for desalination
    • 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
    • C02F2103/22—Nature of the water, waste water, sewage or sludge to be treated from the processing of animals, e.g. poultry, fish, or parts thereof
    • 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
    • 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
    • C02F2201/4616—Power supply
    • C02F2201/46165—Special power supply, e.g. solar energy or batteries
    • 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
    • C02F2201/4618—Supplying or removing reactants or electrolyte
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/40—Liquid flow rate
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/42—Liquid level
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y02A20/131—Reverse-osmosis

Definitions

  • the invention relates to a method and a device for the treatment of contaminated liquids, in particular water, without the addition of chemicals, by means of a combination of several purification units.
  • the invention has for its object to provide a method and apparatus for the treatment of contaminated liquids, especially water, which is also suitable for higher loads.
  • a treatment plant according to the inventive method is used to produce clean drinking water quality drinking water as a result of filtration of contaminated liquids, in particular contaminated water, e.g. Sewage from slaughterhouses, seawater, ballast water from ships,
  • the electrodes which are used as anodes and cathodes are operated in an electrical circuit, given.
  • the connection of the electrodes can depend on the application in the form of direct current with a firmly impressed voltage and / or in the form of current-voltage profiles, for example alternating current with a matched to the expected impurities, the type of liquid and the like the voltage amplitudes and frequencies take place, wherein corresponding regeneration cycles can be provided for the regeneration of the electrodes.
  • the voltage applied to the electrodes is specified in particular in terms of the electrochemical voltage series, overvoltages occurring at the electrodes and the electrochemical properties and concentration of the impurities by means of a control device.
  • the impurities and parts of the liquid are hereby reacted electrochemically on the electrodes and decompose into flocculent solids and gaseous components, for example hydrogen, oxygen, chlorine and other reaction products of the predominantly organic and / or impurities present as inorganic salts. If this process is carried out with sufficient intensity, it will result in ne sufficient purity of the liquid, such as water in drinking water quality.
  • the electrolysis unit is followed by the rotating filtration unit in order to separate the liquid from the liquid immediately after its formation for filtration of the solids formed in large quantities during the electrochemical treatment of the liquid.
  • the pore size of the at least one fines filter of the downstream filtration unit depends on the pore size of the solid formed at the electrodes, which flocculates due to the resulting on the electrode surfaces of the reaction solids and thus finely divided due to the resulting solids at the electrodes, so that a pore size from about 0.1 microns to 0.5 microns may be required.
  • a rotating fines filter Under a rotating fines filter is compared to a housing of the fines filter with an inlet of the liquid to be filtered rotating shaft with a drain of the filtered liquid to understand, between the inlet and the outlet, a rotating filter is disposed on the shaft, so that for example sufficient revolutions per minute, the deposited on the filter solids due to the centrifugal force can be removed and be discharged through an opening provided in the housing.
  • a filtration unit is provided, in which one or more parallel and / or serially arranged rotating fines filters are provided.
  • This or these fines filter consist of at least one filter unit with a plurality of axially to each other around the shaft, for example, attached to a rotating drain sleeve arranged and attached to this filter discs.
  • the surfaces of these filter discs are charged with the mixture and the filtered liquid is introduced into the drain sleeve.
  • the fines filter is driven as such by the resulting hydropower or alternatively by an electric motor.
  • the filter discs are made of plastic, for example polyethylene. It has proved to be advantageous for reasons of a broad field of application, when the filter discs are made of a single plastic component, sintered for example from a granulate or powder of predetermined particle size, so that only a plastic component is to be considered in targeted conditions of use only borrowed.
  • Several filter discs may be axially connected to each other, e.g. by fusion, be connected to each other, so that at this point no additional, used as an adhesive components must be used.
  • the design of the filter disks can be equipped with respect to an optimized flow of the liquid with respect to the distribution of the pore size in the filter disk such that the filter disks have a core of coarse-pored and a shell of fine-pored material, the coarse-pored core merely serving as support for the fine-pored material , the filtering of the liquid cause and therefore with respect to a
  • Layer thickness relative to the core preferably thinly executed coat serves.
  • the removed by the filter discs by their rotation and separated from the liquid solid can be compacted by means of a solid press and collected in a solids container.
  • a solid press for the operation of a plant oriented thereon, in particular for ecological and umweitrelevanten aspects when the resulting gases in the electrolysis unit, for example hydrogen, oxygen, chlorine and the like are used.
  • these can be collected, optionally separated, compressed and reused.
  • it has proven the resulting and. to incinerate trapped gases in an energy conversion machine and then use their energy. In this way, at least a part of the energy used in the electrolysis unit can be recovered.
  • the energy conversion machine can, for example, a
  • Be internal combustion engine which is operated depending on the resulting gases as a detonating gas, chlorine gas engine, as a fuel cell or the like.
  • FIG. 2 shows a section through a schematically illustrated, rotating fines filter
  • Fig. 4 shows a filter unit in function
  • Fig. 5 shows a filter in section
  • FIG. 1 shows a plant 1 for the treatment of contaminated liquids using the example of a treatment of contaminated water, such as wastewater or seawater in the form of a schematically illustrated block diagram.
  • a treatment of contaminated water such as wastewater or seawater
  • the feed 2 while the contaminated water is supplied under pressure, for example by gravity or a pump.
  • a buffer memory can be arranged before the electrolysis unit 3.
  • the water is guided past electrode pairs spaced apart from one another such as anodes and cathodes, it being possible for a plurality of pairs of electrodes to be arranged parallel and / or in series in the water flow depending on the flow to be managed.
  • a serial arrangement of electrode pairs these can be connected in the form of a cascade of differently set electrochemical parameters such as electrode spacing, electrode material, impressed voltage and the like.
  • the electrodes formed from the water electrolytically formed gases such as hydrogen and oxygen.
  • gases such as hydrogen and oxygen.
  • the impurities contained in the water at the electrodes are at least partially oxidized or reduced.
  • This can be additional gases, for example in the case of organic contaminants such as proteins and fats in the In the case of slaughter effluents, for example methane and depending on the pH of the water, carbon dioxide is produced.
  • the resulting gases can be discharged and supplied to the internal combustion engine 4, which burns these gases, for example predominantly as oxyhydrogen gas or, in the case of a high concentration of chloride as an impurity, for example in seawater desalination, as chlorine gas.
  • the resulting energy can be utilized directly or transferred under the driven by the internal combustion engine energy conversion machine 5 in a different form of energy. If the energy conversion machine 5 is provided as a current generator, electrical energy can be obtained which is available to the plant and can charge a current accumulator and / or can be fed into a power grid after appropriate voltage equalization. Alternatively or additionally, the energy conversion machine 5 may be designed as an air conditioner or replace a power generator or be switched on.
  • these gases produced in the electrolysis unit 3 in the internal combustion engine 4 can be collected in the gas collector 6, optionally separated there and used separately, or - provided safety-friendly composition - compacted and fed to another utilization ,
  • the impurities of the water accumulate as a solid which, for example, is formed on the electrodes during the electrolytic treatment and flocculates in a fine form.
  • the solid which is thus amorphous, colloidal or otherwise present, is mixed with the electrolytically purified aqueous phase of the solid in the electrolyte.
  • lysis unit 3 directly into the filtration unit 8 or - as shown - previously transferred to the buffer memory 7 and from there into the filtration unit.
  • the buffer memory 7 already serve to sediment the solid, wherein from the buffer 7 already settling portions of the solid can be discharged and according to the - described later - filter cake can be worked up.
  • the filtration unit 8 with the illustrated rotary fines filter separates the mixture into the solid and the aqueous phase.
  • the solid is separated from the filtration unit 8 in the solid press 9 and compacted there, wherein excess water is squeezed out and, if necessary, again the filtration unit 8 or the buffer memory 7 is supplied. From the solid press 9, the solid is transferred to the solid container 10, which may be provided as a replacement container.
  • the solid forming the filter cake may contain, for example, slaughterhouse effluents, organically utilizable fractions, for reprocessing effluents from the potash industry, for example, proportions of reusable alkali ions and salts of seawater, in particular saline and iodine salts.
  • the filtered water is supplied to the buffer tank 11 in the illustrated embodiment or can also be transferred directly into the ultrafiltration unit 12.
  • the buffer container 11 can - when the ultrafiltration unit 12 is designed for peak loads - be dispensed with.
  • Buffer container 11 is followed by a possible ultrafiltration unit 12 which, for example, designed as a membrane filtration unit, remaining suspended solids and turbid substances and depending on the design of the membranes still remaining residues of microorganisms filters.
  • a possible ultrafiltration unit 12 which, for example, designed as a membrane filtration unit, remaining suspended solids and turbid substances and depending on the design of the membranes still remaining residues of microorganisms filters.
  • the possible ultrafiltration unit 12 may comprise units in stages, which additionally contains a stage with ion exchange membranes, which, in particular for achieving drinking water quality of the purified water, can on the one hand reduce an increased ion concentration and, on the other hand, can set a predetermined pH value.
  • the completely purified water is supplied from the ultrafiltration directly via the sequence 15 of a further use, for example, fed into a supply line or optionally cached in the water tank 13.
  • a regulated valve 14 which is arranged only schematically at this point, can be provided. Additionally or alternatively, further valves may for example be provided between ultrafiltration unit 12 and water tank 13.
  • a control unit which controls the operations described.
  • corresponding sensors such as fill level sensors, flow sensors and the like can be provided at a plurality of locations.
  • the system 1 is controlled according to the method, for example the electrolysis unit 3, the water flow and the like, and the necessary energy, such as electrical energy, is provided, which regulates the energy conversion machine 5 designed as a current generator and optionally dissipates electrical energy.
  • FIG. 2 shows a section through a schematically illustrated rotating fines filter 16 of the filtration unit 8 of FIG. 1.
  • the fines filter 16 is made of a rubber. home 17, which receives the example of an electric motor in the direction of arrow 18 driven shaft 19 which is formed as a drain sleeve 20 for the filtered water with the one-sided open drain 21, rotatable and sealed.
  • the housing 17 has an inlet 22 for the mixture of water and solids produced in the electrolysis unit 3 of FIG. 1 and an outlet opening 23 through which the remaining solid is discharged.
  • a screw conveyor not shown, or the like.
  • On the shaft 19 a plurality of axially spaced filter discs 24 are fixed, which have on its outer surface a fine-pored filter 25, which is applied to a coarse-pored core 26, which serves as a carrier for the filter 25.
  • FIG. 3 shows an electrolysis unit 3 in section with the special configuration of the anodes 28 in the S configuration.
  • FIG. 4 shows a filter unit as a combination filter 29 in operation, suitable both for dirty water and also for seawater treatment, wherein a self-cleaning effect takes place by means of internal and external pressure via slings and scraping edges of the filter discs 24.
  • the filter rotation of the filter discs 24 is generated by a at the junction 34 of the shaft 19 with this fixed, but solvable, not shown in the figure E-motor.
  • Pos. 33 is the raw water inlet
  • Pos. 30 and Pos. 31 are the pure water drains
  • Pos.32 the dirty water outlet 32 is marked with Pos. 35 the vent.
  • FIG. 4 shows a filter with the filter discs 24 in section.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

L'invention concerne un procédé pour traiter des liquides impurs, en particulier de l'eau, au moyen d'une combinaison de plusieurs procédés reposant sur des principes d'action différents, sans ajout de produits chimiques. Le liquide est d'abord acheminé à une unité d'électrolyse (3). Le mélange ainsi produit constitué de substances solides et de liquide est ensuite amené à une unité de filtration (8), puis à une ou plusieurs unités d'ultrafiltration (12).
PCT/EP2011/000715 2010-02-15 2011-02-15 Procédé et dispositif pour traiter des liquides impurs, en particulier de l'eau, sans ajout de produits chimiques WO2011098301A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010007969A DE102010007969A1 (de) 2010-02-15 2010-02-15 Verfahren und Vorrichtung zur Aufbereitung verunreinigter Flüssigkeiten, insbesondere Wasser, ohne Zusatz von Chemikalien
DE102010007969.3 2010-02-15

Publications (1)

Publication Number Publication Date
WO2011098301A1 true WO2011098301A1 (fr) 2011-08-18

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PCT/EP2011/000715 WO2011098301A1 (fr) 2010-02-15 2011-02-15 Procédé et dispositif pour traiter des liquides impurs, en particulier de l'eau, sans ajout de produits chimiques

Country Status (2)

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DE (1) DE102010007969A1 (fr)
WO (1) WO2011098301A1 (fr)

Citations (8)

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Publication number Priority date Publication date Assignee Title
US3997447A (en) * 1974-06-07 1976-12-14 Composite Sciences, Inc. Fluid processing apparatus
US4818401A (en) * 1988-07-18 1989-04-04 Lawrence William J Rotary filtration device
DE4236723C1 (de) * 1992-10-30 1994-04-28 Wt Wassertechn Gmbh Vorrichtung zur Reinigung und Aufbereitung von Schmutzwässern mittels Elektroflotation
DE19835592A1 (de) 1998-05-01 1999-11-11 Ind Tech Res Inst Verfahren zur Abwasserbehandlung durch Elektrolyse und Oxidation
DE202005015370U1 (de) 2005-09-29 2006-02-02 ITA Institut für innovative Technologien GmbH Umweltschonende Trinkwasseraufbereitungs- / wasserdesinfektionsvorrichtung
CA2562842A1 (fr) * 2005-10-06 2007-04-06 Volker Stevin Contracting Ltd. Systeme pour recuperer les gaz produits lors d'une electrodialyse
DE602004008584T2 (de) 2003-02-24 2008-05-21 Européenne de Traitement des Eaux S.A. Verfahren und vorrichtung zur elektrochemischen wasserdesinfektion
US20090008269A1 (en) * 2007-07-06 2009-01-08 Christopher William Heiss Electrocoagulation reactor and water treatment system and method

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Publication number Priority date Publication date Assignee Title
DE3121337A1 (de) * 1981-05-29 1982-12-16 Fichtel & Sachs Ag, 8720 Schweinfurt Filteranlage
DE19646414C1 (de) * 1996-11-11 1998-04-23 Genova Deutschland Gmbh & Co K Vorrichtung zur Aufbereitung von kommunalen Abwässern
CH696812A5 (de) * 2003-11-12 2007-12-14 Zimmermann Verfahrenstechnik A Vorrichtung zur Entkeimung und Entkalkung von Trinkwasser.

Patent Citations (8)

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Publication number Priority date Publication date Assignee Title
US3997447A (en) * 1974-06-07 1976-12-14 Composite Sciences, Inc. Fluid processing apparatus
US4818401A (en) * 1988-07-18 1989-04-04 Lawrence William J Rotary filtration device
DE4236723C1 (de) * 1992-10-30 1994-04-28 Wt Wassertechn Gmbh Vorrichtung zur Reinigung und Aufbereitung von Schmutzwässern mittels Elektroflotation
DE19835592A1 (de) 1998-05-01 1999-11-11 Ind Tech Res Inst Verfahren zur Abwasserbehandlung durch Elektrolyse und Oxidation
DE602004008584T2 (de) 2003-02-24 2008-05-21 Européenne de Traitement des Eaux S.A. Verfahren und vorrichtung zur elektrochemischen wasserdesinfektion
DE202005015370U1 (de) 2005-09-29 2006-02-02 ITA Institut für innovative Technologien GmbH Umweltschonende Trinkwasseraufbereitungs- / wasserdesinfektionsvorrichtung
CA2562842A1 (fr) * 2005-10-06 2007-04-06 Volker Stevin Contracting Ltd. Systeme pour recuperer les gaz produits lors d'une electrodialyse
US20090008269A1 (en) * 2007-07-06 2009-01-08 Christopher William Heiss Electrocoagulation reactor and water treatment system and method

Non-Patent Citations (1)

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Title
THOMAS BOGNER: "Idee mit viel Potenzial. Kooperation mit Start-up-Unternehmen", ITG MOTION, AUSGABE 5 / JULI 2009, 1 July 2009 (2009-07-01), pages 16 - 19, XP002637486, Retrieved from the Internet <URL:http://www.itg.de/ftpdown/itg-motion_05.pdf> [retrieved on 20110516] *

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