WO2007146030A2 - Système de traitement de l'eau - Google Patents

Système de traitement de l'eau Download PDF

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Publication number
WO2007146030A2
WO2007146030A2 PCT/US2007/013372 US2007013372W WO2007146030A2 WO 2007146030 A2 WO2007146030 A2 WO 2007146030A2 US 2007013372 W US2007013372 W US 2007013372W WO 2007146030 A2 WO2007146030 A2 WO 2007146030A2
Authority
WO
WIPO (PCT)
Prior art keywords
water
emitters
oxygen
microbubbles
flow
Prior art date
Application number
PCT/US2007/013372
Other languages
English (en)
Other versions
WO2007146030A3 (fr
Inventor
Rudolph R. Hegel
Robert K. Sorensen
Original Assignee
Aqua Innovations, 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
Application filed by Aqua Innovations, Inc. filed Critical Aqua Innovations, Inc.
Priority to EP07809370A priority Critical patent/EP2035600A2/fr
Priority to MX2008015804A priority patent/MX2008015804A/es
Priority to CA002654587A priority patent/CA2654587A1/fr
Priority to BRPI0713156-9A priority patent/BRPI0713156A2/pt
Publication of WO2007146030A2 publication Critical patent/WO2007146030A2/fr
Publication of WO2007146030A3 publication Critical patent/WO2007146030A3/fr

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Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/727Treatment of water, waste water, or sewage by oxidation using pure oxygen or oxygen rich gas
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/46Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/467Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
    • C02F1/4672Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/008Control or steering systems not provided for elsewhere in subclass C02F
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/46Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104Devices therefor; Their operating or servicing
    • C02F1/46109Electrodes
    • C02F2001/46119Cleaning the electrodes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/46Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104Devices therefor; Their operating or servicing
    • C02F1/46109Electrodes
    • C02F2001/46133Electrodes characterised by the material
    • C02F2001/46138Electrodes comprising a substrate and a coating
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/101Sulfur compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/103Arsenic compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/20Heavy metals or heavy metal compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/06Contaminated groundwater or leachate
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00Apparatus for treatment of water, waste water or sewage
    • C02F2201/46Apparatus for electrochemical processes
    • C02F2201/461Electrolysis apparatus
    • C02F2201/46105Details relating to the electrolytic devices
    • C02F2201/4612Controlling or monitoring
    • C02F2201/46125Electrical variables
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00Apparatus for treatment of water, waste water or sewage
    • C02F2201/46Apparatus for electrochemical processes
    • C02F2201/461Electrolysis apparatus
    • C02F2201/46105Details relating to the electrolytic devices
    • C02F2201/4612Controlling or monitoring
    • C02F2201/46125Electrical variables
    • C02F2201/4613Inversing polarity
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00Controlling or monitoring parameters in water treatment
    • C02F2209/40Liquid flow rate

Definitions

  • the invention pertains to treatment of water to remove metals and other undesirable substances from well and grouhdwater so as to render the water potable.
  • Water for domestic, industrial and farm use frequently is contaminated with minerals, organic substances, and bacteria that render the water unpotable and even dangerous to health.
  • ferrous iron which forms a colloidal mass with water and fouls plumbing.
  • Organic substances may include pesticide residues, drug metabolites and other contaminants that are released into the groundwater. Harmful bacteria such as Salmonella sp., E. coli, Shigella sp. and Clostridia sp. have been implicated in outbreaks of illness with significant mortality.
  • a widely used treatment system employs the chemical oxidant potassium permanganate to oxidize contaminants. Basically, running water is passed through a bed of permanganate to convert the fouling ferrous iron to the soluble ferric iron and the odorous hydrogen sulfide to non-odorous sulfate. Other contaminants are likewise oxidized to harmless chemicals and bacteria are killed. This system, though effective, is difficult and expensive to maintain and requires periodic backflushing and replacement of the permanganate. Permanganate being a toxic and reactive chemical, service of the system can be hazardous.
  • Oxygen may be used. Oxygen content of water may be raised by several means: bubbling with air; spraying the water into the air; applying pressure to increase the dissolved oxygen, or by the electrolysis of water.
  • United States Patent No. 6,171,469 described raising the oxygen content of water by passing the water through a set of electrolysis cells. In order to raise the oxygen content to the desired 13-17 ppm, it is necessary to recirculate the water past the cells 15 to 55 times.
  • the present invention provides one or a plurality of emitters contained in one or a plurality of electrolysis chambers through which water flows. When activated, the emitters cause the evolution of microbubbles of oxygen.
  • the emitters are connected to a power source controlled by a controller containing a flow switch. When the flow switch senses water demand, that is, when a spigot is opened, the controller causes voltage to be applied to the electrolysis cells.
  • the electrolysis cell or cells comprise electrodes separated from each other by a critical distance as more fully described in co-pending patent application serial number 10/732,326 (the '"326" application), the teachings of which are incorporated by reference. Briefly, the anode and cathode are separated by 0.005 to 0.140 inches.
  • the most preferred critical distance is 0.065 inches. Any cathode or electrode known in the art may be used. Any number of emitters may be arranged in the electrolysis chamber; the following examples show a typical array of three rectangular emitters, but it is understood that the invention is not limited to three, but may comprise one to several or hundreds of emitters, depending on the volume of running water to be treated. Likewise, it may be convenient to pass the water through a plurality of chambers, arranged in series or in parallel, in order to make a more compact unit or to treat large quantities of flowing water.
  • the cathode and electrode are formed of the same material and the controller causes the polarity to be reversed at a set signal.
  • Many cathodes and anodes are commercially available.
  • United States Patent Number 5,982,609 discloses cathodes comprising a metal or metallic oxide of at least one metal selected from the group consisting of ruthenium, iridium, nickel, iron, rhodium, rhenium, cobalt, tungsten, manganese, tantalum, molybdenum, lead, titanium, platinum, palladium and osmium or oxides thereof.
  • Anodes are preferably formed from the same metallic oxides or metals as cathodes.
  • Electrodes may also be formed from alloys of the above metals or metals and oxides co-deposited on a substrate.
  • the cathode and anodes may be formed on any convenient support in any desired shape or size.
  • the most preferred electrode is titanium coated with iridium oxide.
  • Polarity of the electrodes is reversed in order to clean the electrodes of deposited minerals.
  • the time of reversal may be set for any convenient interval or be activated by any convenient means.
  • the means for reversal include: reversal each time the well pump turns on; when the water flow is initiated; at timed intervals from 45 seconds to 24 hours or more; or manually.
  • the controller When the water flow is intermittent, it is convenient to program the controller to change polarity each time the flow switch detects a flow of water.
  • the preferred embodiment is self-cleaning; mineral residue tends to build up on the cathode when current is flowing.
  • the anode and the cathode change polarity.
  • the mineral buildup on the former cathode is repelled and starts to form on the new cathode. This reversal of polarity limits the amount of buildup and the emitter is essentially self-cleaning.
  • the system is supplied with valves to direct the water flow.
  • the water may be directed to bypass the electrolysis chamber, to pass through the chamber to be oxygenated, or a separate line is provided to backflush the electrolysis chamber to remove any minerals that may have accumulated in the vicinity of the electrodes.
  • Any embodiment is preferably supplied with fail-safe sensors, valves and the like, devices known to those in the art.
  • the flow switch senses that there is no water flow, the power is turned off.
  • a temperature, sensor in the electrolysis chamber shuts off current if the current is applied but no water is flowing. In that case, the temperature in the chamber rises and the temperature sensor will instruct the controller to cut the voltage.
  • relief valves to release fluid in case of liquid or gas pressure buildup may be located at any point in the system.
  • a gas relief valve is best vented to the outside.
  • the system includes an electrical circuit to control the activation of the emitters, to reverse polarity and to inactivate the emitters when water is not flowing.
  • the oxygen is provided by bubbling it into a chamber.
  • the oxygen can be supplied by tank or generated on the site by PSA technology.
  • the embodiment that comes closest to approximating the result of the present invention is sparging oxygen through a microorifice in order to produce microbubbles of oxygen.
  • Water may contain many undesirable substances, such as iron, manganese, arsenic, antimony, chrome and aluminum.
  • the reduced salts are generally soluble, while oxidized metals, such as Fe 2 O 3 or MnO 2 are insoluble and form fine precipitates.
  • Reduced sulfur compounds, such as H 2 S have a noxious odor, while oxidized sulfur compounds are generally odorless.
  • Other undesirable substances include pesticide residues, drug metabolites and bacteria.
  • Such filter beds are well known in the art and include: Birm filter, Greensand, Pyrolux. Filtersand, Filter-Ag, activated carbon, anthracite and garnet.
  • the portion of the effluent intended to be heated may pass through a water softener.
  • Figure 1 shows a simple water treatment system.
  • Figure 2 shows a water treatment system with added safety devices and a bypass.
  • Figure 3 is a diagram of the electric circuitry.
  • Figure 4 is a representation of various emitters.
  • Figure 5 shows an embodiment with two electrolysis chambers in series and a final filter.
  • Figure 6 shows the preferred embodiment in a case with the electrolysis chambers arranged in parallel.
  • Figure 7 shows the embodiment with oxygen bubbling or sparging.
  • a water treatment system with three emitters in one chamber is used as an example.
  • the voltages and flow rates below are suitable for this example, but it should be understood that more or fewer cells can be used, depending on the needs of the installation. It may be convenient to pass the water to be treated through a plurality of chambers to make a more compact system or to treat large volumes of water.
  • the chambers may be arranged in series or in parallel.
  • One of the pressing needs is the removal of ferrous hydroxide, which has an odor, stains and fouls plumbing. Oxidized iron is non- reactive and will not stain or foul plumbing, nor does it have an objectionable odor.
  • microbubbles evolved by the emitters are effective in rapid oxidation of contaminants both because of the high oxygen content achieved in the water and because of the large surface area for reaction.
  • a final filter is preferred in order to remove fine precipitates of oxidized iron and other oxidized metals and to improve the clarity of the water.
  • the intake 1 is attached to the water supply to be treated.
  • Valve 2 is shut; valve 3 is open to allow water into the electrolysis chamber 4.
  • the power supply 7 supplies voltage to the plates 8a, 8b and 8c, causing oxygen to be evolved.
  • the oxygenated water passes valve 9 to exit by the outlet 10.
  • Water pressure relief valve 11 and gas relief valve 12 will relieve pressure in the system.
  • the controller 6 inactivates the plates 8a, 8b and 8c.
  • valve 2 is shut; valve 3 is open to allow water into the electrolysis W
  • Valves 14 and 15 are closed.
  • the power supply 7 applies voltage to the plates 8a, 8b and 8c, causing oxygen to be evolved.
  • the oxygenated water passes by valve 9 to exit by the outlet 10.
  • Pressure relief valve 11 and gas relief valve 12 will relieve fluid pressure in the system when excess pressure is generated and detected by pressure gauge 16, a pressure switch 16a is activated.
  • the controller 6 inactivates the plates 8a, 8b and 8c.
  • Connector 17 is provided for ease of installation.
  • Intake 18 is connected to the water supply.
  • Either the embodiment in Figure 1 or the embodiment in Figure 2 may be operated in several modes:
  • Valve 2 is open; valves 3 and 9 are closed. Water flows from intake 1 to outlet 10, bypassing the emitters.
  • Valves 3 and 9 are open; valves 2, 14 and 15 ( Figure 2 only) are closed. Water flows from intake 1 through electrolysis chamber 4.
  • the flow switch 5 senses flow and controller 6 activates power source 7 to supply current to the emitters.
  • Valves 3 and 9 are open; valves 2, 14 and 15 ( Figure 2 only) are shut.
  • the flow switch 5 senses flow and controller 6 activates power source 7.
  • Controller 6 switches polarity as programmed. For intermittent use, it may be convenient to program the controller to switch polarity each time water flow is started.
  • Circuit operation starts with applying line voltage, 120 V AC, to the power supply 26, which transforms the line voltage to 12 V DC.
  • the controller circuit is in electrical communication with flow switch 23, temperature sensor 22 and push button switch 21 which activates the circuit, if the temperature sensor 22 indicates cool, thereby allowing 12 volts to be applied to the push button switch 21.
  • this push button switch When this push button switch is pushed, it energizes relay 24 KlA. The connections on this relay are such that it remains energized after the push button is released. The other contacts on this relay look at the flow switch to see if water is flowing.
  • K2 is a sequencing relay, the contacts of which will change state when energized and remain in an energized state when power is removed. The next time the relay is energized, the contacts change state and then stay in that position.
  • the action will continue indefinitely if the temperature sensor detects no increase in temperature. If the sensor sees an increase in temperature above its set point, it will open the circuit and remove the 12 V DC power to the relays, thereby shutting down the circuit. The circuit can be restarted only by activating the button switch again. When the spigot is turned off, there is a slight temperature rise until the flow switch turns off the controller. This rise is not enough to trigger the much higher set point on the temperature switch. Hence the system will turn on again once the flow switch detects flow.
  • the temperature switch is a safety device and preferably, once the temperature switch inactivates the power system, manual intervention is required to reactivate the system.
  • the emitter of this invention may be shaped as a circle, rectangle, cone or other model.
  • One or more may be set in a substrate that may be metal, glass, plastic or other material.
  • the substrate is not critical as long as the current is isolated to the electrodes by the nonconductor spacer material of a thickness from 0.005 to 0.140 inches, preferably 0.030 to 0.075 inches, most preferably 0.065 inches.
  • micro-and nanobubbles of oxygen are evolved. These bubbles are so small that they cannot escape and build up into what may be termed a colloidal suspension of oxygen in an aqueous medium. Oxygen concentrations of 260% of calculated saturation at a particular temperature and pressure have been achieved in a stationary container.
  • the oxygen suspension in a flow-through unit can be so concentrated with oxygen that the water appears milky.
  • the microbubbles have a larger surface area for reaction than ordinary-sized bubbles.
  • a funnel or pyramidal shaped cell was constructed to treat larger volumes of fluid.
  • Figure 4 shows a simple flat emitter 4A; a cone-shaped emitter 4B; and a rod shaped emitter 4C.
  • Figure 4D depicts the most favored configuration, a triple set of emitters arranged in a pyramidal configuration in a conduit. This flow-through embodiment is suitable for treating large volumes of water rapidly and is selected as the best mode for use in water treatment.
  • any configuration will be useful in the water treatment system and the system is not limited to the pyramidal configuration nor to three emitters nor to one chamber. In each of these configurations, the anode 34 and cathode 35 are separated by 0.040 to 0.75 inches. Example 4. Operation of experimental systems.
  • This experimental system did not feature the self-cleaning reverse polarity feature.
  • the system was run for six days, during which time 1400 gallons of water was drawn. At this time, the electrodes began to show some mineral deposits.
  • the first polarity-reversing experimental system with three emitters, was installed in a home provided with well water, containing 2 to 3 ppm iron.
  • the flow rate in the system was 6 gallons/minute.
  • Polarity of the emitters was reversed every time the flow was started, that is, when a faucet was opened, about 70 times per day.
  • This unit was equipped with a Birm filter. Tests showed complete removal of iron, down to 0 detectable ppm.
  • the second polarity-reversing experimental system was installed at a site where the effluent was also used for irrigation.
  • the water contained 12.75 ppm iron and operated at a 15 gallon/minute rate. Polarity was reversed every time the well pump was started, which varied between 14 and 18 times a day.
  • the iron in the effluent was undetectable and the effluent was passed through a Birm filter and the results showed that iron levels were undetectable.
  • the third polarity-reversing experimental system was installed at a site where the water contained both 10 ppm iron and 2.25 ppm hydrogen sulfide. Flow rate was 7 gallons per minute, and the polarity was reversed each time the well pump was started, about 14 times per day. The effluent was passed through a greensand filter. Iron and hydrogen sulfide levels in the effluent were undetectable.
  • a special 5 ft. by 8 ft. trailer was outfitted in order to conduct water testing at various sites and to verify results before units were installed.
  • the trailer was equipped with two polarity-reversing oxygenator chambers, a power supply, and two Birm filters. A 14 inch by 65 inch Birm filter for lower flow rates and a 21 inch by 54 inch Birm filter for higher rates were used.
  • the trailer had its own power generator and large flow pump so iron, hydrogen sulfide and manganese removal can be tested immediately on site.
  • Example 6 Compact unit with self- cleaning feature.
  • FIG. 5 shows a typical system for assembly on site.
  • six sets of emitters are provided, three in each of two electrolytic chambers 36 A and 35B, with a 12 V DC power source.
  • the chambers in this embodiment are arranged in series.
  • a flow switch connected to the control box 38 is activated.
  • the control box is shown in detail in Figure 3.
  • the flow switch is calibrated to sense water flow at or above a preset flow, preferably 0.5 gallons per minute.
  • the flow switch When flow is sensed, the flow switch sends a signal to the power supply box in the control box 38, which in turn applies 12 V DC power to the emitters in the chambers 36 A and 36B.
  • the effluent leaves chamber 36A and enters chamber 36B.
  • the effluent then passes by control and safety devices 39, 40, 41, 42 and 43 and thence into the filter 44.
  • Figure 6 shows a compact system that can be factory-assembled.
  • the system has two chambers 46A and 46B, arranged in parallel and fitted into a case 47.
  • the case is a compact enclosure containing both plumbing and electrical components.
  • the water enters at input 48 and then passes by the input side of a backflow preventer 49, splitting into parallel paths and through the electrolytic chambers 46A and 46B where it is oxygenated.
  • the oxygenated water then recombines in the upper manifold 50 and is routed out of the output side 51 of the bypass valve 52.
  • the effluent is finally passed out of the case into a final filter as in Figure 5.
  • the embodiments described in this example 6 are equipped with a polarity reversing control. The process continues as long as the water flow exceeds the preset flow.
  • Example 7 Bubbling or sparging with oxygen.
  • Oxygen from tank 53 is sparged into a simple chamber 54 with a static mixer 55 through a microorifice 56 in order to produce microbubbles to raise the oxygen content above the content calculated to be 100% saturation at the pressure and temperature of the chamber. Metals and other contaminants are oxidized. Microbubbles, with increased surface area for reaction, can be produced by sparging air or oxygen through a microorifice. Oxygen is preferred. Such a microorifice is described in United States Patent Number 6,394,429, the teachings of which are incorporated by reference.
  • the bubble chamber is preferably provided with a means to direct the bubbles throughout the chamber rathei- than rising in a stream to the outlet.
  • the means can be inert particles or more preferably, a static mixer, such as that sold by Koflo Corporation (Cary, IL) or Chemineer (Dayton, OH).
  • a static mixer 55 is, generally, a series of vanes or paddles that disrupt the flow of bubbles to ensure mixing.
  • the outflow from the chamber 54 is shown entering through connection 57 to the top of filter 58.
  • the effluent enters at the top of the filter tank and an internal conduit (not shown) draws it down through the filter. Water enters the system at inlet 59.
  • emitter Round, flat or pyramid configuration emitters were tested in the laboratory for over 30 days. The emitters chosen were of titanium. The current was switched at varying intervals from five seconds to three hours. No buildup of mineral deposits was observed. Depending on the site and the user's preference, in the functioning water treatment system, the polarity can be set to reverse:
  • each choice has its advantages with the purpose of minimizing the frequency of reversing polarity in order to prolong the useful life of the electrodes while maintaining the efficacy of water treatment.
  • the timing mode can be selected.
  • water use is intermittent, as is generally the case with home use, a mode based on pump or water flow is preferred.

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

Abstract

L'invention concerne un système de traitement de l'eau, destiné à éliminer des métaux et des gaz nocifs de puits et d'eaux de fond afin de rendre l'eau potable. Le système utilise des microbulles d'oxygène qui restent en suspension dans l'eau à une concentration supérieure à 100 % de la concentration saturée calculée à une température et une pression particulières. Ces microbulles oxydent les substances indésirables dans l'eau, lesdites substances comprenant du fer, du manganèse, de l'arsenic, de l'antimoine, du chrome, de l'aluminium, des composés de soufre réduits, des résidus de pesticides, des métabolites de médicaments et/ou des bactéries. Les microbulles sont produites par électrolyse ou par barbotage au travers d'un micro-orifice. L'invention concerne également un système de commande pour le système électrolytique.
PCT/US2007/013372 2006-06-13 2007-06-06 Système de traitement de l'eau WO2007146030A2 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP07809370A EP2035600A2 (fr) 2006-06-13 2007-06-06 Système de traitement de l'eau
MX2008015804A MX2008015804A (es) 2006-06-13 2007-06-06 Sistema de tratamiento de agua.
CA002654587A CA2654587A1 (fr) 2006-06-13 2007-06-06 Systeme de traitement de l'eau
BRPI0713156-9A BRPI0713156A2 (pt) 2006-06-13 2007-06-06 sistema de tratamento de água

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US81326706P 2006-06-13 2006-06-13
US60/813,267 2006-06-13

Publications (2)

Publication Number Publication Date
WO2007146030A2 true WO2007146030A2 (fr) 2007-12-21
WO2007146030A3 WO2007146030A3 (fr) 2008-08-21

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Application Number Title Priority Date Filing Date
PCT/US2007/013372 WO2007146030A2 (fr) 2006-06-13 2007-06-06 Système de traitement de l'eau

Country Status (6)

Country Link
EP (1) EP2035600A2 (fr)
CN (1) CN101466874A (fr)
BR (1) BRPI0713156A2 (fr)
CA (1) CA2654587A1 (fr)
MX (1) MX2008015804A (fr)
WO (1) WO2007146030A2 (fr)

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WO2011041661A1 (fr) * 2009-10-02 2011-04-07 Bioionix, Inc. Procédé et appareil de traitement électrochimique de liquides par inversion de polarité fréquente
WO2011135403A1 (fr) * 2010-04-27 2011-11-03 Gomez, Jose Luis Système et procédé de potabilisation d'eau, obtenue à partir de l'environnement et/ou d'eau obtenue à partir du réseau municipal ou collectif, et/ou d'eau obtenue à partir de puits, et/ou d'eau obtenue dans des récipients domestiques et industriels

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Publication number Priority date Publication date Assignee Title
CN104843836A (zh) * 2015-05-06 2015-08-19 崑山科技大学 现地电解的地下水整治方法
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MX2008015804A (es) 2009-05-28
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EP2035600A2 (fr) 2009-03-18
CN101466874A (zh) 2009-06-24
BRPI0713156A2 (pt) 2012-04-17

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