WO2016100876A1 - Ensemble cellule électrolytique à double membrane et procédé de génération d'une solution de nettoyage sans résidus de sel et de génération simultanée d'une solution de désinfection ayant un taux de chlore libre disponible et un ph prédéterminés - Google Patents

Ensemble cellule électrolytique à double membrane et procédé de génération d'une solution de nettoyage sans résidus de sel et de génération simultanée d'une solution de désinfection ayant un taux de chlore libre disponible et un ph prédéterminés Download PDF

Info

Publication number
WO2016100876A1
WO2016100876A1 PCT/US2015/066794 US2015066794W WO2016100876A1 WO 2016100876 A1 WO2016100876 A1 WO 2016100876A1 US 2015066794 W US2015066794 W US 2015066794W WO 2016100876 A1 WO2016100876 A1 WO 2016100876A1
Authority
WO
WIPO (PCT)
Prior art keywords
ion
exchange membrane
chamber
cylindrical
tube
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.)
Ceased
Application number
PCT/US2015/066794
Other languages
English (en)
Inventor
Ralph A. LAMBERT
Michel Van Schaik
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.)
AQUAOX Inc
Original Assignee
AQUAOX Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US14/577,258 external-priority patent/US20150176142A1/en
Application filed by AQUAOX Inc filed Critical AQUAOX Inc
Publication of WO2016100876A1 publication Critical patent/WO2016100876A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/4618—Devices therefor; Their operating or servicing for producing "ionised" acidic or basic water
    • 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
    • C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
    • C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
    • C02F1/4674—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation with halogen or compound of halogens, e.g. chlorine, bromine
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/24—Halogens or compounds thereof
    • C25B1/26—Chlorine; Compounds thereof
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/01—Electrolytic cells characterised by shape or form
    • C25B9/015—Cylindrical cells
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
    • C25B9/19—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms
    • C25B9/21—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms two or more diaphragms
    • 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
    • C02F2001/46171—Cylindrical or tubular shaped
    • 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
    • C02F2201/002—Construction details of the apparatus
    • C02F2201/003—Coaxial constructions, e.g. a cartridge located coaxially within another
    • 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
    • C02F2201/46115—Electrolytic cell with membranes or diaphragms
    • 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

Definitions

  • the present invention relates to a cylindrical electrolysis cell assembly for producing simultaneously a diluted Sodium Hydroxide and diluted Hypochlorous Acid solution for usage as cleaning and sanitizing solutions by electrolysis of an aqueous saline solution.
  • the method comprising a cathode chamber, an electrolyte chamber and an anode chamber separated by two cylindrical ion-selective permeable exchange membranes to prevent presence of salt residues in the cleaning and sanitizing solutions and whereas pH and free available chlorine content of the sanitizing solution can be altered .
  • Electrolysis cells are used for the production of cleaning and sanitizing solutions from brine. Also, electrolysis cells are used to produce a sanitizing solution to disinfect water or other media. Many types of electrolysis cells exist for these purposes .
  • the basic feature of these cells is two concentrically disposed cylindrical electrodes with a separator dividing the space between the two electrodes to define anode and cathode compartments.
  • An electrolyte, such as brine is passed through the anode and cathode compartments, separately or successively. When brine is electrolyzed in this way, under suitable conditions, it can produce a cleaning and sanitizing solution of high strength and long shelf life, which is ecologically and human friendly.
  • an electrolyte solution is passed through the anode and cathode chambers separately to produce a diluted Hypochlorous Acid solution as a sanitizing solution and a diluted Sodium Hydroxide solution as a cleaning solution.
  • neutral sanitizing solutions can be produced when an electrolyte is passed through the anode and cathode chambers successively .
  • the separator is a porous diaphragm made of a permeable ceramic material.
  • the separator is an ion-exchange membrane made of a cation or anion material on a polymer impregnated cloth. The ion-exchange membrane permits the diffusion of electrolytes between the anode and cathode but retard the migration of electrolysis products at the anode and cathode from diffusing to each other reverting back to starting material or undesired side products .
  • the diaphragm permits the diffusion of electrolytes between the anode and cathode but only retard the migration of electrolysis products at the anode and cathode from diffusing to each other reverting back to starting material or undesired side products when the pressure differential between the anode and cathode chamber facilitates this.
  • Acidic sanitizing solutions are generated by passing saline through an electrolytic cell comprising an anode chamber, a cathode chamber , and a separator.
  • the result contains free available chlorine ( FAC ) in the form of a mixture of oxidizing species , predominantly hypochlorous Acid ( H0C1 ) and sodium hypochlorite , and is characterized by its pH , FAC content, conductivity, osmolarity and redox potential.
  • FAC free available chlorine
  • H0C1 hypochlorous Acid
  • H0C1 hypochlorous Acid
  • H0C1 hypochlorous Acid
  • redox potential redox potential
  • Such reactive species have a finite life and so, while the pH, conductivity and osmolority of the solution will usually stay constant over time, its biocide efficacy will decrease with age.
  • Electrolysis cells either comprise cylindrical electrodes plus one cylindrical ceramic diaphragm or electrolysis cells comprise plate electrodes plus one ion perme
  • anode water is required to be more oxidative and/or acidic and cathode water is required to be more reductive and/or alkaline.
  • the electrolysis cell shown in FIG. 1 is difficult to produce the effective solutions.
  • Some plate electrolysis assemblies are designed to solve the problem mentioned above, where a middle chamber is added between the anode chamber and the cathode chamber divided by two separators and whereas the middle chamber is filled with ion-exchange resin as a solid electrolyte and whereas the anode and cathode have holes and are closely attached to the separators.
  • US patent application 10/629,165 describes a three chamber plate electrolysis cell utilizing two ion permeable sheets of membrane to divide middle chamber from anode and cathode chamber whereas whereas the anode and cathode have holes and are closely attached to the ion-exchange membranes.
  • Another merit of a three chamber cell is the fact that no electrolyte is fed into the anode and cathode chamber. Although efficiency of two chamber electrolysis cells has been significantly improved, not all electrolytes that pass the cathode chamber are conversed into Sodium Hydroxide. Likewise, not all electrolytes that pass the anode chamber are conversed into Hypochlorous Acid and/or Hypochlorite Ion.
  • both the cleaning and sanitizing solutions generated in a two cell electrolysis cell contain salt residues .
  • Presence of salt in both the cleaning and sanitizing solutions limit its usage for surface treatment, as salt is corrosive, streaks the surface, and leaves deposits on the surface.
  • most cleaning and sanitizing procedures include an extra rinse with potable water.
  • the three-chamber plate cell assembly has several constructional disadvantages compared to the two-chamber cylindrical cell assembly. Ion-exchange resin need to be replaced periodically, which is not only costly, but labor intensive .
  • Ion-exchange membranes are made of cloth impregnated with ion-selective material. Though some cloth is reinforced the strength to the ion-exchange membrane is limited, depends on the surface size it needs to cover and tension placed over the membrane.
  • Ion-exchange membranes are subject to a pressure-differential that will push on the ion-exchange membrane cloth and expand the space in one chamber at the expense of the space in the other chamber. Over time due to temperature, fluctuating pressures and aging, the tension of the ion- exchange cloth will reduce. Moreover, ion-exchange membrane cloth is known to expand over its lifetime and causes the ion-exchange membrane cloth to become wobbling. An Ion permeable sheet of membrane is not very dimensionally stable.
  • Electrodes are closely attached to the ion- exchange membranes. As these ion-exchange membrane cloths extend in size and become wobbly, they touch the electrodes and thus compromise their function to selectively allow ions to migrate through the membrane. As electrodes are hot, any contact with the ion-exchange membrane may burn holes in the cloth and thus allow impurities to migrate through the ion-exchange membrane. In several plate cell assemblies an insulating sheet is placed between the ion-exchange membrane cloth and the electrodes to reduce the risk of burning holes in the ion-exchange membranes.
  • the plate sections are compressed together in such way that the ion-exchange membranes, the insulating sheet and the electrodes are exactly positioned in its place and whereas an even force should be applied on the gaskets all around the plate cell assembly to obtain a leak-free seal and whereas one should be careful not to over compress certain sections or sides of the plate cell assembly in order not to change the internal spaces of the chambers.
  • the three-chamber cylindrical cell shown in FIG. 3 is designed to solve the problems of plate three- chamber cells mentioned above, whereas in a more robust cylindrical cell assembly, a middle chamber is added between the anode chamber and the cathode chamber.
  • the core of the present invention lies in the construction of cylindrical ion-exchange membranes which are dimensionally stable and which can be easily replaced, constructing a cylindrical electrolysis cell assembly that can be quickly, easily and leak-free re- assembled to replace ion-exchange membrane tubes multiple times.
  • U.S. Patent No 7,374,645, U.S. Patent No 7,691,249 and U.S. Patent No 7,828,942 clearly describe the usage of a ceramic diaphragm as separator for the same reason as described in U.S. Patent No. 914, 856 and U.S Patent No. 1,035,133; all cylindrical cell assemblies rely on the structural strength of the ceramic material once assembled in a cylindrical cell assembly.
  • both inventions are aimed to resolve the issue of breakage of the fragile ceramic diaphragm during assembling whereas in U.S.
  • Patent No 7,691,249 glue or a sealant is used to provide a permanent leak-free seal between the end-cap sections, the electrodes and the diaphragm or whereas as described in U.S. Patent No 7,374,645 the end-cap sections, the electrodes and diaphragm are compressed together without any imposition of torque or compressive stress on the ceramic material.
  • An ion-exchange membrane tube is constructed using a Cation and Anion material made of either polymer impregnated cloth or reinforcing media of some kind; or an extruded or otherwise processed polymer, combined with suitable molded or otherwise fabricated attachment mechanisms and can be assembled in a cylindrical electrolysis cell in order to electrolyze water, electrolyte or other applicable liquids.
  • the inner membrane material (s) can be wrapped or coextruded in order to create an ion-exchange membrane of single or multiple layers of similar or dissimilar materials in order to create a liquid, once electrolyzed, having certain distinctive properties.
  • Said membrane material can be wrapped in any of several ways including, but not limited to: single wrap cylinder, multiple wrap cylinder, diagonally wrapped cylinders, etc..
  • This cylindrical wraps can be of any geometric shape, including, but not limited to circular, oval, square, hexagon, or even tetrahedral.
  • Fig. 16a and Fig.16b show a bushing that is inserted at both ends of the ion-exchange membrane tube and a collar that is pushed over the outer diameter of the ion-exchange membrane tube to lock the tube-end onto the bushing.
  • the usage of the bushing and/or collar is optional.
  • the bushing is manufactured conically so that it screws into the tube end. This gives a solid seal between the bushing and the ion-exchange membrane tube.
  • some glue or sealant can be added to form a leakfree seal between the bushing and the ion-exchange membrane tube.
  • the bushings may be recovered, provided no glue or other cement is used.
  • the ion-selective tubular membrane is disposed.
  • Polyvinyl Chloride (PVC) is used, as can be seen on Fig. 17.
  • a cation or anion ion-exchange membrane sheet can be tightly wrapped around the skeleton tube in various patterns whereas one sheet end is glued on to the skeleton tube, wrapped around and glued on top of the ion-exchange membrane sheet.
  • one or more collars can be pushed over the ion-exchange membrane tube (and thus over the skeleton tube) to help to hold the ion-exchange membrane sheet wrapped around the skeleton tube.
  • the ion-exchange membrane sheet end can be glued to the inside of the skeleton tube, then rolled whereas the other end of the sheet is glued on top of the inside wrapped sheet, thus creating a good seal and a leak-free ion-selective membrane tube.
  • the ion-exchange membrane tubes are typically made in advance.
  • the ion-exchange membrane sheet is soaked to extent its surface prior to gluing it onto the skeleton tube.
  • glue a waterproof Polyurethane glue that requires the surfaces to be damp to get activated is used. Once glued, the sheets are clamped for several hours. Once dried the ion-exchange membrane tubes are tested to ensure they are leak-proof and its, wall- thickness, length and diameters meet the specifications.
  • ion-selective exchange membrane sheet dries they shrink, thus increasing the tension; therefore they are stored in a saline solution, prior to assembling into the electrolysis cell. This invention resolves the deposits of salt and thus allows for cleaning and sanitation of surfaces without additional rinsing.
  • This invention resolves the structural weaknesses of plate electrolysis cells minimizing the torsion of ion-exchange membrane cloth by constructing a sturdy dimensionally stable ion-exchange membrane tube, enabling a high laminar flow rate through the anode and cathode chambers preventing stagnant water, avoiding ion-exchange membrane cloth to expand and make contact with electrodes thus securing integrity and improving lifetime of the ion-exchange membranes whereas the unique cylindrical cell assembly enable frequent and easy leak-free replacement of cation and anion ion- exchange membrane tubes without the possibility to reduce the spaces of the chambers by compressing the cell sections together.
  • This invention resolves the limitation of cylindrical electrolysis cells of utilizing porous or permeable ceramic diaphragms by constructing a sturdy ion-exchange membrane tube, enabling to selectively reject anions or cations not having to rely on a certain pressure differential between the anode and cathode chambers to prevent migration of undesired ions occurs utilizing a porous or ion-permeable diaphragm.
  • This invention resolves assembling issues related to machining, handling and assembling fragile ceramic ion-permeable diaphragm and facilitate easy periodic replacement of pre-constructed sturdy unbreakable ion-exchange membrane tubes having either a bushing on either end or are tightly wrapped around a skeleton tube of which outer diameter is 100% round and fits the inner diameter of the end-cap section to from a leak-free seal using an o-ring.
  • This invention resolves the dimensional issues related with the manufacture of the ceramic diaphragm, as length, wall-thickness and diameter of the pre- constructed ion-exchange membrane tube can be better and more precisely controlled than casting, drying firing, machining ceramic diaphragms, thus making it possible to utilize and assemble two ion-exchange membrane tubes coaxially within each other to create a middle chamber.
  • the invention is directed to a cylindrical dual diaphragm electrolysis cell assembly comprising a cathode chamber, electrolyte chamber, and an anode chamber.
  • the present invention provides an insulating end piece for a cylindrical electrolysis cell of the type comprising at least two cylindrical electrodes arranged coaxially one within the other with two cylindrical ion-exchange membranes arranged coaxially between them.
  • Softened filtered water passed through the cathode chamber functions as cleaning agent for all surfaces, fabrics, textiles, and carpets.
  • Softened filtered water passed through the anode chamber functions as sanitizing agent for all hard surfaces.
  • Anodic electrolysis of softened water produces hydrogen ions, where no anion is present as counter ion, unlike acidic solutions prepared by adding acid such as hydrochloric acid or sulfuric acid.
  • the anode water produced by electrolyzing softened water exhibits that the solution is charged.
  • the hydrogen ion by itself is an electron acceptor and so exhibits one of oxidizing species. So, the oxidation-reduction potential of anode water tends to shift to noble side. In other words, the redox sensor indicates a plus value.
  • cathodic electrolysis of softened water is reduced at the cathode. This occurs because water is more easily reduced than are sodium ions. Cathodic electrolysis alters the H+/0H- balance around the cathode making the solution more basic and the oxidation reduction potential of cathode becomes negative.
  • the cathode water is not necessarily suitable for actual cleaning or a surface treatment without rinsing the surface with distilled, RO or tap water.
  • the anode water is not necessarily suitable for sanitizing hard surfaces without rinsing the surface afterwards with distilled, RO or tap water. So improving the electrolysis cell is very important to apply to actual use.
  • the periodic replacement of the ion- exchange membrane sheets cause issues with regard to leakage, space and applying an even amount of force while compressing the sections of the plate cell assembly.
  • a plate cell design does not enable a high laminar flow rate of water in the anode and cathode chamber, as the Ion-exchange membrane sheet is dimensionally unstable and expand with changes in pressure differential restricting the flow in one of the chambers or touch the electrodes that are mounted directly next the Ion-exchange membranes causing damages and shortened lifetime of the cloth thus increase periodic replacement of the ion-exchange membrane. So improving the electrolysis cell is very important to apply to actual use.
  • the main factor for producing effective cleaning and sanitizing agents is the construction and assembly of a sturdy dimensionally stable easy to replace ion-exchange membrane tube in a cylindrical electrolysis cell assembly that facilitate two Ion- exchange membrane tubes of different length and diameter coaxially mounted within each other creating a middle chamber for circulation of electrolyte.
  • the softened water can be fed to the anode and cathode chambers separately and the electrolyzed solutions can then be collected from each of these chambers separately .
  • the softened water can be fed through the cathode and anode chamber successively.
  • Other factors which can be used to vary the sanitizing solution include the voltage applied to the electrodes, the electrical power absorbed, the electrode coating and physical size of the electrode, the shape of the electrodes and distances between them and the spacing and material of the Ion-exchange membrane.
  • the Ion- exchange membrane material is an important feature since it affects the mobility of ions passing between the electrodes .
  • An objective of the invention is to provide a cylindrical electrolytic cell than can produce a constant quality of diluted Sodium Hydroxide and simultaneously a constant quality diluted Hypochlorous Acid whereas the separators pre-constructed made of are anion and cation selective Ion-exchange membrane sheet and can be easily replaced.
  • Another objective of the invention is to disclose a method and apparatus that can prevent the presence of salt residues in cleaning and sanitizing solutions whereas pH and free available chlorine content of the sanitizing solution can be altered.
  • Another objective of the invention is to improve cleanliness, as the cleaning solutions produced by the electrolytic cell are effective for cleaning all surfaces by removing fine particles or the like wherefrom and sanitizing solutions produced by the electrolytic cell are effective for sanitizing all hard surfaces by oxidation of micro-organism and viruses .
  • Yet another objective of the invention is to produce cleaning and sanitizing solutions that are also effective for cleaning and sanitizing resins or the like, in particular resins for beverage, dairy, and even medical devices .
  • Yet still another objective of the invention is to produce cleaning and sanitizing solutions wherein no special chemical remains after cleaning and sanitizing .
  • FIG. 1 (prior art) is a view of a two chamber cylindrical electrolysis cell as described in e.g. in U.S. Patent No 7,374,645, U.S. Patent No 7,691,249, U.S. Patent No 7,828,942, or in U.S. Patent No 8,002,955.
  • FIG. 2 (prior art) is a view of a three chamber plate electrolysis cell as described in US2004/0020787.
  • FIG. 3 is a view of a three-chamber cylindrical electrolysis cell assembly using two ion- exchange membrane tubes to create a middle chamber whereas electrolyte is circulated.
  • FIG. 4 (prior art) is a view of a typical cylindrical two-chamber electrolysis cell assembly cut in a plane on the center axis between the port to one electrode compartment in one end cap and the port to the other electrode compartment in the other end cap.
  • FIG. 5 is a view of a three-chamber cylindrical electrolysis cell assembly cut in a plane on the center axis between the port to one electrode compartment in one end cap and the port to the other electrode compartment in the other end cap.
  • FIG. 6a is a view of the outer electrode wherein a groove is manufactured that facilitates a stainless steel clip.
  • FIG. 6b is a view of the stainless steel clip that mounts the end-cap on the outer electrode.
  • FIG. 7 is a view of a one section end piece from the side into which the tubes of a cylindrical two chamber electrolysis cell would be inserted .
  • FIG. 8 is a view of a one section end plug with only the inserted tubes cut in a plane of the center axis.
  • FIG. 9 is a view of a multiple section end piece from the side into which the tubes of a cylindrical three chamber electrolysis cell would be inserted .
  • FIG. 10 is a view of a multiple section end piece from the top of a cylindrical three chamber electrolysis cell.
  • FIG. 11 (prior art) is a view of typical flow patterns in a two chamber electrolysis cell.
  • FIG. 12 is a view of flow patterns in a three chamber electrolysis cell.
  • FIG. 13 (prior art) is a view of alternative flow patterns in a two chamber electrolysis cell.
  • FIG. 14 is a view of alternative flow patterns in a three chamber electrolysis cell.
  • FIG. 15 is a view of the brine reservoir and peristaltic pump to circulate the electrolyte.
  • FIG. 16A is a view of an inner ion-selective membrane tube.
  • FIG. 16B is a view of an outer ion-selective membrane tube .
  • FIG. 17 is a view of a skeleton on which anion or cation material made of either polymer impregnated cloth or reinforced media of some kind can be wrapped around .
  • the present invention is directed to the construction of an optimized cylindrical electrolysis cell that produces a cleaning solution and simultaneously a sanitizing solution.
  • the diluted Sodium Hydroxide solution is more alkaline, contains no salt residues and, therefore, the solutions can be used to clean any surface without rinsing the surface afterwards with distilled, RO water or tap water.
  • the diluted Hypochlorous Acid solution contains no salt residues and its free available chlorine content as well as pH can be adjusted.
  • surfaces can be effectively sanitized using a sanitizing solution which pH and free available chlorine is 'tailored' to sanitize a certain surface taking into account chlorine consumption and in line with various sanitizing procedures as set by regulatory agencies such as the FDA, EPA, USDA and CDC. Certain surfaces require a more acidic sanitizer whereas other surfaces are damaged by the acid nature of the sanitizer. In these cases, a more neutral pH
  • Hypochlorous Acid is preferred. Also, the absence of salt residues allows the use of the sanitizing solution on any surface without rinsing the surface with distilled, RO or tap water.
  • FIG. 3 and FIG. 5 The three chamber electrolysis cell is illustrated in FIG. 3 and FIG. 5, where a cylindrical electrode [1] is positioned within a cylindrical cation ion-exchange membrane tube [2] which is positioned within a second cylindrical anion ion-exchange membrane tube [3] , where the anion ion-exchange membrane tube [3] is positioned within a second cylindrical electrode [4] by the use of two end pieces [99] which consist of a tube cap [6], port A cap [7], port B cap [8] and port C cap [ 9] .
  • Tube cap [6] seals the outer electrode [4] with the end piece [99] using an 0-ring [12] .
  • the tube cap [6] is compressed or screwed on the outer electrode [4] .
  • the outer electrode tube- ends have a male thread that fits a female thread manufactured in the tube cap [6] .
  • the outer electrode tube ends have a groove [30] manufactured that fits a stainless steel clip [14].
  • the stainless steel clip [14] is pushed through an aperture manufactured in the tube cap [6] into the groove [30] to lock the tubecap [6] onto the outer electrode [7] .
  • a huge benefit of using a groove and stainless steel clip [14] is the fact that the face of the bottom end pieces [99] can be easily line-up with the face of the upper end pieces [99] whereas when screwing the tube cap [6] onto the outer electrode [4] the tube caps [6] cannot be tightened totally, if both faced are to be lined up.
  • Port A cap [7] features port A for direction of the flow of softened water through port A ending in fittings [17] into the chamber A defined by the spaces between the anode [4] and the anion ion-exchange membrane [3] and out of chamber A through port A ending in fittings [17] of the opposite port A cap [6].
  • Port B cap [8] features port B for direction of the flow of saturated brine through port B ending in fittings [17] into chamber B defined by the spaces between the cation ion-exchange membrane [2] or anion ion-exchange membrane [3] and out of chamber B through port B ending in fittings [17] of the opposite port B cap [8] .
  • Port C cap [9] features port C for direction of the flow of softened water through port C ending in fittings [17] into chamber C defined by the spaces between the inner electrode [1] and the cation ion- exchange membrane [2] and out of chamber C through port C ending in fittings [17] of the opposite port C cap [9] .
  • the tube cap [6] is either compressed or screwed on the outer electrode [4] .
  • Port A cap [7] is pressed on the tube cap [6] whereas the tube cap [6] facilitated a groove for an 0-ring [13] and whereas port A cap [7] is pressed on the tube cap [6] .
  • Port B cap [8] is pressed on port A cap [7] whereas the port A cap [7] facilitated a groove for an 0-ring [13] and whereas the Port B cap [8] is pressed on port A cap [7] .
  • Port C cap [8] is pressed on port B cap [7] whereas port B cap [7] facilitated a groove for an 0-ring [13] and whereas port C cap [8] is pressed on port B cap [7] .
  • the tube cap [6], port A cap [7], port B cap [8] and port C cap [8] are bolted together using three or four stainless steel bolts [18], washers [19] and nuts [20] .
  • the seal between each section of the end piece [99] is achieved by compressing the sections of the end piece [99] onto each other, in a manner such that the compressive force can be applied slowly and smoothly without the introduction of torque such that a reliable seal is produced between each section of the end piece [99] as well with the ion-Exchange membrane tubes [2] and [3] .
  • Either of the electrodes [1] and [4] can act as the anode with the other acting as the cathode.
  • the choice can be made by considerations of the ease of manufacture or requirements of the nature of the electrolysis process to be performed which can favor the anode or cathode chamber preferentially being the outer chamber. These considerations include the desired spacing between the electrodes and the Ion-exchange membranes, the desired space between the ion-exchange membranes [2] and [3] and the relative volume requirements for the balance of flows of the electrolyte solution in chamber B and the softened water in chamber A and chamber C.
  • the inner electrode cathode [1] and outer electrode anode [4] tubes are constructed of an electrically conductive material, preferably titanium.
  • the metal electrode tubes are coated with a mixed metal oxide on the face of the tube directed toward the Ion-exchange membranes [2] and [3] .
  • the metals of the two electrodes can be titanium or stainless steel. Both metals can be coated with a mixed metal oxide.
  • the cathode can be an uncoated metal, but the anode has to be a mixed metal oxide coated metal .
  • a preferred arrangement has the outside electrode tube [4] as the anode internally coated with a mixed metal oxide and the inner electrode tube [1] as the cathode and not coated .
  • the outer electrode [4] is shown in FIG. 2 with an electrical connector [10] welded to the outside of the outer electrode [4] tube.
  • the inner electrode [1] has an electrical connector [11] on its end that is part of the inner electrode [1] and extends out of the outside of the upper end piece [89] .
  • the outside of the outer electrode [4] is insulated by a rubber sleeve [5] that is heat-shrunk over the outer electrode [4] and cut to length.
  • Another option is to glue an insulating sheath [5] or tube on the outside of the outer electrode [4] .
  • the outer anion ion-exchange membrane tube and the inner cation ion- exchange membrane tube are pre-constructed and made from polymer ion-selective membrane sheet.
  • the thickness of the Ion-exchange membrane tube can vary over a broad range depending on the application the electrolysis cell assembly [100] .
  • inner electrode [1], Ion-exchange membranes [2] and [3] can vary within the single requirement that outer electrode [4] must be of greater diameter than Ion- exchange membrane tube [3], the diameter of Ion-exchange membrane tube [3] greater than Ion-exchange membrane tube [2] and the diameter of Ion-exchange membrane tube [3] greater than the inner electrode tube [4] .
  • the actual diameters can vary depending upon the desired features of the electrolysis cell assembly [100] . To this end the diameters can be varied to optimize the rate of electrolysis, rate of flow through the cell assembly, and other needs of the system to which the assembly will be used.
  • the relative length of the electrodes [1] and [4] and Ion-exchange membrane tubes [2] and [3] can vary within the single requirement of this embodiment that the outer electrode tube [4] must be shorter than Ion-exchange membrane tube [3] Ion-exchange membrane tube [3] shorter than Ion- exchange membrane tube [2] and Ion-exchange membrane tube [2] shorter than inner electrode [1] .
  • the lengths of the electrodes [1] and [4] and the length of the Ion- exchange membrane tubes [2] and [3] can be determined by factors such as ease of construction and geometries to optimize the performance of the electrolysis cell assembly in the system in which it is to perform.
  • the upper and lower end pieces [99] are interchangeable and constructed of an insulating material, preferably Polyvinyl Chloride.
  • Each end piece [99] consist of four sections, the tube cap [6], Port A cap [7], Port B cap [8] and port C cap [9].
  • the upper and lower end pieces [99] have an inlet fitting connected to a tube that passes tangentially through a specific section of the upper and lower end pieces [99] to communicate with the cathode chamber through an aperture.
  • the upper and lower end pieces [99] respectively have an inlet fitting and an outlet fitting connected to a tube that passes tangentially through a specific section of the upper and lower end pieces [99] to communicate with the anode chamber through an aperture.
  • the upper and lower end pieces [99] respectively have an inlet and outlet fitting connected to a pipe that passes through a specific section of the upper and lower end pieces to communicate with the middle chamber through an aperture.
  • the four sections of the end piece [99] can be formed by molding or machining. Ports [17] are for introduction or exit of softened water to chamber A and to chamber C. Port [17] is for the introduction and exit of electrolyte to chamber B. All sections of the end piece [99] consist of three or more holes to accept three or more stainless steel bolts [18], washers [19] and nuts [20] by which the four sections of the end piece [99] are compressed together.
  • Two holes [22] with female thread are made in the tube cap [6] at both opposite sides. This allows mounting the assembly [100] on a plate or bracket.
  • This plate or bracket may be a plastic or stainless steel as long as the metal is insulated from one or both of the electrodes.
  • a preferred fabrication of a mounting plate or bracket is a machined sheet of Polyvinyl Chloride, which is commercially available as PVC .
  • One critical feature of the end piece [99] is that the inside diameter of all sections of the end piece [99] closely match the outside diameters of the four tubes [1], [2], [3] and [4] so that the o-rings [12], [14], [15] and [16] form a good seal between the sections.
  • the 0-rings [12], [14], [15] and [16] form a good seal between the tubes [1], [2], [3] and [4] and the four end caps [6], [7], [8] and [9] as well form a good seal between the four sections themselves using 0-ring [13] .
  • the Ion-exchange membrane tubes [2] and [3] require the use of 0-rings [14] and [15] to form the seal such that whilst assembling, the Ion-exchange membrane tubes slide over the end cap to form a good seal.
  • the length of the cell assembly [100] is defined by the length imposed by the outer electrode tube [4] .
  • the Ion-exchange membrane tubes [2] and [3] must be long enough to seal at both ends by 0- rings [14] and [15] even if one end of the Ion- exchange membrane tubes [2] and [3] is resting on Port B cap [8] and Port C cap [9] .
  • Port A begins at fitting [17] on an outside surface of Port A [7] permits the flow of softened water through chamber A defined by the inside of the outer electrode tube [4] and the outside of diaphragm [3] as illustrated in FIG. 2 and FIG. 4.
  • Port C begins at fitting [17] on an outside surface of Port C cap [9] and permits the flow of softened water through chamber C defined by the inside of Ion-exchange membrane tube [2] and the outside of inner electrode [1] as illustrated in FIG. 2 and FIG. 4.
  • Port B begins at the fitting [17] on an outside surface of port B cap [8] and permits the flow of an electrolyte solution through chamber B defined by the inside of Ion-exchange membrane tube [3] and the outside Ion-exchange membrane tube [2], as illustrated in FIG. 2 and FIG. 3.
  • the outside of port A, port B and port C is a fitting [17] which accepts a tube for introduction or exit of a fluid to the cell assembly [100] .
  • fittings [17] can be a compression fitting, as is illustrated in FIG. 2 and FIG. 4, or it can be a hose barb or some other coupling which is appropriate for the system within which the electrolysis cell assembly [100] is to function.
  • the orientation of the ports is necessary to promote a tight spiral flow around the inner electrode tube [1], Ion-exchange membrane tubes [2] and [3] between the spaces in chamber A, chamber B and chamber C.
  • the end pieces [99] can have other configurations as long as the configuration permits for the sealing of the assembly where the compressive force is imposed upon the outer electrode [4] and no significant compressive force is required imposed on Ion-exchange membrane tubes [2] and [3] .
  • the different types of end pieces [99] can be combined in any combination as long as the appropriate lengths of tubing are chosen and as long as the sections of the end piece [99] can be sealed together by compression. While the preferred end piece [99] has been illustrated and described, it will be clear that the invention is not so limited. Modifications, changes, variations, substitutions and equivalents will occur to those skilled in the art without departing from the spirit and scope of the present invention as described in the claims .
  • a critical feature of this invention is the construction of the ion-selective membrane tubes.
  • a Cation and Anion material made of either polymer impregnated cloth or reinforcing media of some kind; or an extruded or otherwise processed polymer, combined with suitable molded or otherwise fabricated attachment mechanisms, can be used in conjunction with a suitable shell in order to process electrolyzed water or other applicable liquids.
  • the inner membrane material (s) can be wrapped or coextruded in order to create an ionic cell membrane of single or multiple layers of similar or dissimilar materials in order to create a liquid, once electrolyzed, having certain distinctive properties.
  • the membrane material can be wrapped in any of several ways including, but not limited to: single wrap cylinder, multiple wrap cylinder, diagonally wrapped cylinders, etc.
  • This cylindrical wraps can be of any geometric shape, including, but not limited to circular, oval, square, hexagon, or even tetrahedral.
  • an ion-exchange membrane tube has been created out of two dissimilar materials and wrapped at a 20 degree angle and subsequently, or coincidentally, bonded together.
  • This is an example of cylinder that is circular in design.
  • the bonding of these layers of fabric/polymer can be achieved by any of a number of acceptable methods including, but not limited to: adhesive bonding, dielectric bonding, vibrational welding, ultrasonic welding or any of a variety of other thermal and chemical bonding techniques.
  • the membrane can be bonded to a set of prefabricated end caps to assist in the subsequent assembly of the ionic cell.
  • end caps are typically, but not uniquely made by any of the various thermoplastic of thermoset polymer methods such as injection molding, compression molding, machining, etc.
  • end caps are then bonded to the membrane materials with any of the above mentioned, or other, methods of bonding dissimilar materials together.
  • a protective collar of similar material to the membrane cap, can be placed over the membrane material and subsequently bonding all 3 components together into one functional tube.
  • the brine reservoir [98] is preferably manufactured from a transparent plastic tube [24] and two end pieces [25] and [26] made of Polyvinyl Chloride, which is commercially available as PVC.
  • the transparent tube [24] is glued between end piece [25] and end piece [ 2 6 ] .
  • End piece [25] has a male thread that allows screwing a cap [27] on top of end piece [25] .
  • End piece [25] has also a port [28] whereas through fitting [17] a tube can be connected for the exit of the electrolyte to chamber B.
  • End piece [26] has a port [29] on the bottom of end piece [26] whereas through fitting [17] a tube can be connected for the inlet of softened water.
  • End piece [26] has another port [30] on the bottom of end piece [26] with valve [31] . Opening valve [31] allows drainage of the electrolyte from the brine reservoir [98] .
  • Ports [29] and [30] have been constructed in such a way that the aperture of ports [29] and [30] is located at the side and above the brine fill line. This feature is important for two reasons.
  • Port [32] has been constructed in such a way that the aperture of port [31] is located under the brine fill line. This feature is important for two reasons. Firstly, when granular salt is added to the brine container [98] by opening cap [27], no salt can enter into port [31] as the inlet is located at the side of the port [31] . Secondly, the electrolyte from the pump is circulated through a brine layer that saturates the electrolyte.
  • the electrolyte is circulated through pump [23] which is preferably a peristaltic pump with a variable pump-speed and which has two fittings [17] to connect a tube from the brine reservoir [98] to the pump [23] and from the pump [23] to the cell assembly [100] .
  • the brine concentration can be adjusted by adding granular salt and softened water into the brine reservoir [98] .
  • the electrolyte is preferably made by adding granular sodium chloride into the brine reservoir [98] by opening cap [27]. Besides granular sodium chloride, granular potassium chloride can be used.
  • the electrolyte is preferably a saturated aqueous brine solution.
  • Saturation of the electrolyte is ensured by circulating the electrolyte through the brine reservoir [98] that is filled with a certain minimum amount of brine.
  • the electrolyte is circulated from the bottom of the brine reservoir [98] through a layer of salt that is at the bottom of the brine reservoir [98] .
  • This three chamber cylindrical electrolysis cell can be used with different flow patterns allowing changing the volume of the cleaning and sanitizing solution, as well as the pH and free available ⁇ chlorine content.
  • a typical flow pattern permits approximately 30 to 70% of the softened water to pass the anode chamber and approximately 70 to 30% of the softened water to pass the cathode chamber.
  • the volume of softened water that passes the anode chamber or cathode chamber can be restricted by closing a valve which is mounted in the outlet tube of the anode chamber and the volume of softened water that passes the cathode chamber can be restricted by closing a valve that is mounted in the outlet tube of the cathode chamber.
  • An alternative flow pattern is a flow pattern whereas 100% of the softened water is passed through either the cathode chamber or anode chamber. Approximately 70 to 100% of the electrolyzed solution that either exits the cathode chamber or anode chamber is re-directed to the inlet of either the anode chamber or the cathode chamber whereas O to 30% of the electrolyzed liquid is collected in a Sodium Hydroxide storage container or drained as useful by-product.
  • This alternative flow pattern whereas 70 to 100% of the electrolyzed solution is collected in a Hypochlorous Acid storage container is preferred when there is no or little usage of the by-product and whereas the volume of the main-product is maximized.
  • a preferred alternative flow pattern is to pass softened water first through the cathode chamber, wherein the outlet tube is a tee mounted to allow approximately 20% of the diluted sodium hydroxide to flow to a storage tank and where approximately 80% of the diluted sodium hydroxide is re-entered in the anode chamber.
  • the result of this preferred alternative flow pattern is that approximately 80% of the softened water has undergone cathodic electrolysis followed by anodic electrolysis to generate a neutral pH sanitizing solution. Re-entering more diluted Sodium Hydroxide into the anode chamber will increase the pH of the diluted Hypochlorous Acid and re-entering less diluted Sodium Hydroxide will reduce the pH of the diluted Hypochlorous Acid.
  • the volume of the diluted Sodium Hydroxide that enters the anode chamber is regulated by a valve that is
  • the softened water in the cathode chamber is enriched with OH+ ions giving the softened water a high pH and therefore cleaning properties.
  • the electrolyte is rejected by the cation ion-exchange membrane.
  • the softened water in the anode chamber is enriched with Cl- ions giving the softened water a low pH and sanitizing properties.
  • the electrolyte is rejected by the anion ion-exchange membrane.
  • the anode chamber and the cathode chamber are separated from each other by at least one ion-exchange membranes constructed and arranged for generating a diluted Hypochlorous Acid sanitizing solution with a pH between 4.5 and 7.5, an ORP of +800 to +1200mV and a free available chlorine content between 10 to lOOOppm.
  • the ion-exchange membranes simultaneously generate a dilute Sodium
  • NAOH Hydroxide

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Inorganic Chemistry (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

L'invention concerne un ensemble cellule électrolytique pour produire des solutions diluées d'hydroxyde de sodium (NaOH) et des solutions diluées d'acide hypochloreux (HOCl) ayant des propriétés de nettoyage et de désinfection. La cellule électrolytique consiste en deux parties d'extrémité isolantes pour une cellule électrolytique cylindrique comprenant au moins deux électrodes cylindriques présentant deux membranes cylindriques sélectives aux ions disposées coaxialement entre elles. Le procédé de fabrication de différents volumes et de différentes concentrations de solutions diluées de NaOH et de solutions diluées de HOCl comprend le recyclage d'une solution aqueuse de chlorure de sodium ou de chlorure de potassium dans la chambre intermédiaire de la cellule électrolytique cylindrique et l'introduction d'eau filtrée adoucie dans la chambre cathodique et dans la chambre anodique de la cellule électrolytique cylindrique.
PCT/US2015/066794 2014-12-19 2015-12-18 Ensemble cellule électrolytique à double membrane et procédé de génération d'une solution de nettoyage sans résidus de sel et de génération simultanée d'une solution de désinfection ayant un taux de chlore libre disponible et un ph prédéterminés Ceased WO2016100876A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14/577,258 2014-12-19
US14/577,258 US20150176142A1 (en) 2011-12-13 2014-12-19 Dual Diaphragm Electrolysis cell assembly and method for generating a cleaning solution without any salt residues and simultaneously generating a sanitizing solution having a predetermined level of available free chlorine and PH

Publications (1)

Publication Number Publication Date
WO2016100876A1 true WO2016100876A1 (fr) 2016-06-23

Family

ID=55073164

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2015/066794 Ceased WO2016100876A1 (fr) 2014-12-19 2015-12-18 Ensemble cellule électrolytique à double membrane et procédé de génération d'une solution de nettoyage sans résidus de sel et de génération simultanée d'une solution de désinfection ayant un taux de chlore libre disponible et un ph prédéterminés

Country Status (1)

Country Link
WO (1) WO2016100876A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108128851A (zh) * 2018-01-26 2018-06-08 重庆三峡学院 一种回收高盐榨菜废水中氯化钠溶液的方法
WO2020019047A1 (fr) * 2018-07-24 2020-01-30 Giovanni Beccaro Technique de production d'agent désinfectant pour la neutralisation de virus, de bactéries et autres micro-organismes
CN114262214A (zh) * 2022-01-17 2022-04-01 铜陵华兴精细化工有限公司 一种高耐候陶瓷隔膜管及其制备方法
CN117587230A (zh) * 2023-11-28 2024-02-23 赣州有色冶金研究所有限公司 一种含锂浸出液的分离装置

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US590826A (en) 1897-09-28 Harrison
US914856A (en) 1908-02-10 1909-03-09 Otto Meyer Electrolytic apparatus.
US1035133A (en) 1907-08-24 1912-08-13 James F Preston Electrolytic cell.
US3984303A (en) * 1975-07-02 1976-10-05 Diamond Shamrock Corporation Membrane electrolytic cell with concentric electrodes
US6527940B1 (en) * 1996-03-27 2003-03-04 Permelec Electrode Ltd. Production method of acid water and alkaline water
US20040020787A1 (en) 2002-07-31 2004-02-05 Yoichi Sano Method for producing electrolyzed water
EP1860209A2 (fr) * 2006-05-25 2007-11-28 Aquastel International B.V. Dispositif de cellule électrolytique
US20090314659A1 (en) * 2008-06-19 2009-12-24 Tennant Company Tubular electrolysis cell and corresponding method
US7691249B2 (en) 2003-12-04 2010-04-06 Clenox, LLC Method and apparatus for making electrolyzed water
US7828942B2 (en) 2002-10-03 2010-11-09 Puricore, Inc. Electrochemical treatment of an aqueous salt solution
US20130146473A1 (en) * 2011-12-13 2013-06-13 Ralph A. Lambert Dual diaphragm electrolysis cell assembly and method for generating a cleaning solution without any salt residues and simultaneously generating a sanitizing solution having a predetermined level of available free chlorine and pH
US20130146472A1 (en) * 2011-12-13 2013-06-13 Aquaox Inc. Apparatus and method for generating a stabilized sanitizing solution

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US590826A (en) 1897-09-28 Harrison
US1035133A (en) 1907-08-24 1912-08-13 James F Preston Electrolytic cell.
US914856A (en) 1908-02-10 1909-03-09 Otto Meyer Electrolytic apparatus.
US3984303A (en) * 1975-07-02 1976-10-05 Diamond Shamrock Corporation Membrane electrolytic cell with concentric electrodes
US6527940B1 (en) * 1996-03-27 2003-03-04 Permelec Electrode Ltd. Production method of acid water and alkaline water
US20040020787A1 (en) 2002-07-31 2004-02-05 Yoichi Sano Method for producing electrolyzed water
US7828942B2 (en) 2002-10-03 2010-11-09 Puricore, Inc. Electrochemical treatment of an aqueous salt solution
US7691249B2 (en) 2003-12-04 2010-04-06 Clenox, LLC Method and apparatus for making electrolyzed water
US8002955B2 (en) 2003-12-04 2011-08-23 Clenox, L.L.C. Cylindrical electrolysis cell
US7374645B2 (en) 2006-05-25 2008-05-20 Clenox, L.L.C. Electrolysis cell assembly
EP1860209A2 (fr) * 2006-05-25 2007-11-28 Aquastel International B.V. Dispositif de cellule électrolytique
US20090314659A1 (en) * 2008-06-19 2009-12-24 Tennant Company Tubular electrolysis cell and corresponding method
US20130146473A1 (en) * 2011-12-13 2013-06-13 Ralph A. Lambert Dual diaphragm electrolysis cell assembly and method for generating a cleaning solution without any salt residues and simultaneously generating a sanitizing solution having a predetermined level of available free chlorine and pH
US20130146472A1 (en) * 2011-12-13 2013-06-13 Aquaox Inc. Apparatus and method for generating a stabilized sanitizing solution

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108128851A (zh) * 2018-01-26 2018-06-08 重庆三峡学院 一种回收高盐榨菜废水中氯化钠溶液的方法
CN108128851B (zh) * 2018-01-26 2024-01-26 重庆三峡学院 一种回收高盐榨菜废水中氯化钠溶液的方法
WO2020019047A1 (fr) * 2018-07-24 2020-01-30 Giovanni Beccaro Technique de production d'agent désinfectant pour la neutralisation de virus, de bactéries et autres micro-organismes
CN114262214A (zh) * 2022-01-17 2022-04-01 铜陵华兴精细化工有限公司 一种高耐候陶瓷隔膜管及其制备方法
CN117587230A (zh) * 2023-11-28 2024-02-23 赣州有色冶金研究所有限公司 一种含锂浸出液的分离装置

Similar Documents

Publication Publication Date Title
US20130146473A1 (en) Dual diaphragm electrolysis cell assembly and method for generating a cleaning solution without any salt residues and simultaneously generating a sanitizing solution having a predetermined level of available free chlorine and pH
US20150176142A1 (en) Dual Diaphragm Electrolysis cell assembly and method for generating a cleaning solution without any salt residues and simultaneously generating a sanitizing solution having a predetermined level of available free chlorine and PH
US7691249B2 (en) Method and apparatus for making electrolyzed water
WO2012050131A1 (fr) Dispositif de traitement d'électrolyse d'eau
JPWO1999010286A1 (ja) 電解槽および電解水生成装置
CN110325668B (zh) 用于生产洗涤剂和消毒剂液体的方法和电解槽
US20130146472A1 (en) Apparatus and method for generating a stabilized sanitizing solution
US20130146474A1 (en) Mesh electrode electrolysis apparatus and method for generating a sanitizing solution
JP5863143B2 (ja) 殺菌用酸化水を生成する方法
US20160215402A1 (en) Electrolytic apparatus, electrode unit and electrolyzed water production method
CN101696069B (zh) 污水的超深度处理方法及装置
WO2020171238A1 (fr) Appareil d'électrolyse de l'eau, et procédé de stérilisation/nettoyage et procédé pour décomposer/éliminer une substance nocive utilisant chacun un appareil d'électrolyse de l'eau
WO2012070287A1 (fr) Appareil de production d'eau électrolysée
WO2016100876A1 (fr) Ensemble cellule électrolytique à double membrane et procédé de génération d'une solution de nettoyage sans résidus de sel et de génération simultanée d'une solution de désinfection ayant un taux de chlore libre disponible et un ph prédéterminés
WO2014113178A1 (fr) Appareil et procédé pour produire une solution désinfectante stabilisée
WO2003000956A1 (fr) Dispositif portable pour traitement electrochimique de liquides
KR20170110134A (ko) 전해 카트리지, 시스템 및 그 사용 방법
EA013774B1 (ru) Устройство для электрохимической обработки воды или водных растворов
CN205603373U (zh) 一种简易台式饮水机
JP3456015B2 (ja) 電解槽
JP2001293477A (ja) 脱イオン水製造装置
CA2635366C (fr) Systeme de reacteurs electrolytiques a membrane avec quatre compartiments
RU2729184C1 (ru) Электрохимический реактор и установка для электрохимического синтеза смеси оксидантов
KR102366103B1 (ko) 축전식 탈염(Capacitive Deionization, CDI) 수처리장치용 적층식 필터모듈
RU2454489C1 (ru) Электрохимическая ячейка для обработки растворов электролитов

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15820992

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15820992

Country of ref document: EP

Kind code of ref document: A1