Abstract: Processes for producing olefins may include electrolyzing an aqueous solution comprising metal chloride, where electrolyzing the aqueous solution causes at least a portion of the metal chloride to undergo chemical reaction to produce a treatment composition comprising hypochlorite. The processes may further include contacting at least a portion of the treatment composition with the sour water at a pH from 8 to 12, where the sour water comprises sulfides and the contacting causes reaction of the sulfides in the sour water with the hypochlorite to produce a treated aqueous mixture comprising at least metal sulfates and metal chlorides, where the metal sulfates are present in the treated aqueous mixture as precipitated solids. The processes may further include separating the precipitated solids from the treated aqueous mixture to produce a treated effluent comprising at least the metal chloride.

Abstract: A water treatment system includes an ozone generator combined with an electrolytic chlorine generator in a compact, efficient and serviceable assembly. The system may include a modular and replaceable ozone generator, which allows a damaged or non-functional ozone generator to be quickly and efficiently replaced. In order to protect the ozone generator from damage, a fail-safe drain valve assembly may also be provided which will expel backflowing pool water before it is allowed to backflow into the ozone generator. The water treatment system may further include an insulated electrolytic chlorine generator that mitigates or eliminates current leakage for efficient operation.

Abstract: The invention relates to a device, including: a channel including an inlet at a first end of the channel and an outlet at a second end of the channel; a cathode arranged in the channel, which cathode includes a first segment selected from titanium, stainless steel and titanium provided with a mixed metal oxide coating layer including ruthenium oxide and/or iridium oxide and a second segment including carbon, such as a carbon (felt) segment, arranged downstream of the first segment, an anode, arranged in the channel, selected from titanium or, stainless steel and titanium provided with a mixed metal oxide coating layer including ruthenium oxide and/or iridium oxide, which coating layer faces the cathode; and a power source electrically connected to the cathode and the anode. The invention further relates to a method for the production of chlorine dioxide.

Abstract: The invention relates to a method and a device for producing diluted hydrofluoric acid using an electrode arrangement (1), which has an anode chamber (2) with an anode (4) and a cathode chamber (6) with a cathode (8), which are separated from one another by an anion exchange membrane (10), wherein in the method—pure water is guided through the anode chamber (2), —pure water, which includes at least one electrolyte which forms fluoride ions (F?), is guided through the cathode chamber (6), —and an electrical voltage is applied between the anode (4) and the cathode (8) such that the fluoride ions (F?) are moved through the anion exchange membrane (10) into the anode chamber (2), and an electrical current flows.

Abstract: A system and method for creating an oxidation reduction potential (ORP) in water and for reducing the surface tension of the water for the microbiological decontamination of food animal carcasses. A method is also described for the microbiological decontamination of beef trimmings.

Abstract: A system and method for creating an oxidation reduction potential (ORP) in water and for reducing the surface tension of the water for the microbiological decontamination of food animal carcasses. A method is also described for the microbiological decontamination of beef trimmings.

Abstract: Soluble nitrogen-containing species are removed from contaminated water by contacting the contaminated water with aluminum oxide particles in a reactor and adding sufficient sulfamic acid to the reactor to adjust the pH of the contaminated water to 5 or below to create treated water. The treated water, which has less of the soluble nitrogen-containing species than the contaminated water, is removed from the reactor.

Abstract: A system for creating an oxidation reduction potential (ORP) in water and for reducing the surface tension of the water for the pathogenic cleansing and/or degreasing of hard surfaces and equipment. The hard surfaces to be cleansed and/or degreased may be plastic, glass, ceramic, porcelain and stainless steel. The equipment to be cleansed and/or degreased may be food service equipment such as ovens, ranges, fryers, grills, steam cookers, refrigerators, coolers, holding cabinets, cold food tables, work tables, beverage dispensing equipment, beer dispensers, shelving, food displays, dish washing equipment and grease traps.

Abstract: The present invention concerns an electrode element having a valve metal substrate, a first catalyst component applied to said substrate, said first catalyst component suitable for evolving oxygen from an aqueous solution under anodic polarization, a second catalyst component suitable for generating chlorine dioxide from a chlorate solution in acidic environment; said first and second catalyst component being electrically insulated from each other. The inventions also concern an electrolytic cell having such an electrode element and a process for the generation of chlorine dioxide on a catalyst component an electrochemical cell comprising such an electrode element.

Abstract: The present invention provides a method of generating organic compounds and an organic-compound-generating system capable of efficiently generating organic-compounds even under a low-temperature environment by controlling a pH of an aqueous solution within a range from 5 to 10 during electrolysis in a case generating organic compounds by electrolyzing the aqueous solution containing carbon dioxide.

Abstract: A chlorine dioxide production device 1 includes a diaphragm electrolytic cell 2 having an anode chamber 3 and a cathode chamber 5 and configured to effect an electrolytic treatment on anolyte solution containing chlorite supplied to the anode chamber 3 for generating chlorine dioxide, a flow path section C communicating the anode chamber 3 to the cathode chamber 5, a discharge section D communicating the cathode camber 5 to the outside, an aerating means 14 for supplying aeration gas to the anode chamber with allowing adjustment of its supply amount, and a neutralizing means 12 for supplying a neutralizing agent to at least one of the cathode chamber 5 and the discharge section D.

Abstract: A method and apparatus for the removal of both suspended and dissolved contaminants in a fluid stream, including but not limited to heavy metals, organics, inorganics, hydrocarbons and others. The method combines passing an aqueous fluid stream through an electromagnetic field, an ozone/oxygen venturi injector for oxidation and through a horizontal flow and vertical fall within a horizontal plate maze unit of alternately electrically charged plates. The plates are charged alternately to be cathodes and anodes, respectively. A framework to mount and support membranes, dividers or separators, as may be required to enhance special treatment of the fluid stream, is optionally provided.

Abstract: An electrolyzer apparatus includes an anode tank having an anode and a cathode tank having a cathode which are provided separately from each other. The anode tank includes a feed opening for feeding electrolytic solution into the tank, an anode aeration device for feeding aeration air to the fed electrolytic solution, and a gas extraction pipe for guiding gas generated from the anode tank to outside the tank. A communication pipe allows the amount of electrolytic solution fed into the anode tank to flow into the cathode tank, and via the electrolytic solution in the communication pipe, electric conduction becomes possible between the anode and the cathode. An amount of gas generated by an electrolysis reaction inside the anode tank is discharged to the outside of the anode tank via the gas extraction pipe together with the aeration air. The electrolytic solution introduced into the cathode tank is discharged continuously.

Abstract: A method of reducing toxins in stored crops comprises producing a stream of aqueous or gas ClO2 and exposing the stored crops to the ClO2 wherein the ClO2 kills toxin-producing microorganisms and/or reacts with toxins to reduce the toxins in said stored crops. An apparatus for reducing toxins in stored crops comprises a treatment area for containing the stored crops and a ClO2 generator comprising an inlet for introducing at least one chlorine-containing feed chemical and an outlet for exhausting a stream of aqueous or gas ClO2 from the generator into the treatment area wherein introducing the ClO2 kills toxin-producing microorganisms and/or reacts with toxin molecules to reduce the toxins in the stored crops.

Abstract: A low energy water treatment system and method is provided. The system has at least one electrodialysis device that produces partially treated water and a brine byproduct, a softener, and at least one electrodeionization device. The partially treated water stream can be softened by the softener to reduce the likelihood of scale formation and to reduce energy consumption in the electrodeionization device, which produces water having target properties. At least a portion of the energy used by the electrodeionization device can be generated by concentration differences between the brine and seawater streams introduced into compartments thereof. The brine stream can also be used to regenerate the softener.

Abstract: Disclosed is an alloy of the formula: Fe3?xAl1+xMyTzTat wherein M represents at least one catalytic specie selected from the group consisting of Ru, Ir, Pd, Pt, Rh, Os, Re and Ag; T represents at least one element selected from the group consisting of Mo, Co, Cr, V, Cu, Zn, Nb, W, Zr, Y, Mn, Cd, Si, B, C, O, N, P, F, S, CI, Na and Ti; and Ta represents tantalum. Such an alloy can be used as an electrode material for the synthesis of sodium chlorate. It can also be used as a coating for protection against corrosion.

Abstract: The present invention relates to activated solutions comprising one or more of hypochlorous acid, bicarbonate ions, and phosphate ions for use in water treatment, in particular water purification and descaling, and processes for making the same.

Abstract: A reactor for production of a fluid reaction product includes a reaction chamber, a plurality of fluid connections to supply fluid reactants to the reaction chamber, a reception chamber located directly below the reaction chamber, a transfer device providing a fluid connection between the reaction chamber and the reception chamber so that the reception chamber receives a fluid reaction product produced in the reaction chamber, a control unit and a first device, arranged in the reaction chamber to be in direct contact with the supplied fluids to determine a filling level. The first device includes at least one switching point which is operatively coupled with the control unit such that the supply of the fluid reactants into the reaction chamber is controlled and carried out sequentially.

Abstract: Method of producing biocides from an aqueous flow of process water, said method comprising the step of subjecting a water flow containing ions which give rise to conductivity through an electrolysis cell in order to generate chemicals with biocidal performance. The method can be used for treating fresh and waste water systems, such as water streams of cooling systems, fermentation, mining and biorefining, for example papermaking process waters. It can be used for reducing halogen concentration.

Abstract: A microbiocidal solution is provided that includes an electrolyzed saline solution, ozone, and active chlorine species producible via electrolysis that is usable to sanitize and disinfect a surface or substance. A method for producing a microbiocidal solution is provided that includes preparing a dilute saline solution and subjecting the dilute saline solution to electrolysis to produce an electrolyzed saline solution and active chlorine species and including ozone. A method also is provided for disinfecting a surface or substance using a microbiocidal solution where ozone disinfects via high oxidization properties and the active chlorine species provides a residual disinfectant effect. The microbiocidal solution may also include hydroxyl radicals and oxy-chloro species.

Abstract: Electrolytic acid or alkaline water having a NMR half line width using 17O of from about 45 to less than 51 Hz, and an oxide reduction potential of from ?1000 to +200 mV, or from +600 to +1300 mV, topical compositions that contain such water, uses for such water to hydrate skin, deliver drugs and treat various skin and mucosal conditions, and methods and apparatus for manufacturing the water.

Abstract: A method of sterilizing water that includes: immersing at least one electrode unit having a negative electrode within a container and a positive electrode within the container, the positive electrode separated from and facing the negative electrode, wherein the negative electrode has a plurality of negative electrode projections thereon, and the positive electrode has a plurality of positive electrode projections thereon, each positive electrode projection arranged to face and be aligned with each negative electrode projection one by one; and, supplying direct current by at least one power supply to the electrode unit immersed under the water.

Abstract: An automated self-propelled robotic pool cleaner having a housing and drive means for moving the pool cleaner over at least the bottom wall of a pool, is provided with an integral on-board electrochemical chlorine generator for producing chlorine from a chlorine compound, e.g., sodium chloride, that is dissolved in the pool water, a source of electrical power operatively connected to the electrochemical chlorine generator, control means for initiating and terminating the operation of the chlorine generator, and an outlet for discharging water containing chlorine ions produced by the electrochemical generator to thereby distribute the chlorine into the water proximate the exterior of the pool cleaner housing as the pool cleaner follows a programmed operational mode across the bottom and/or side walls of the pool.

Abstract: A system (10) for generating a chlorine-containing compound includes an anodic chamber (12), a cathodic chamber (20), and a brine chamber (30). The anodic chamber (12) includes an anodic electrode (14) and the cathodic chamber (20) includes a cathodic electrode (22). A membrane (28) separates the anodic and cathodic chambers (12), (20). The brine chamber (30) includes an anodic electrode (32) and a cathodic electrode (34). Concentration and type of the chlorine-containing compound can be selectively and consistently controlled by the system (10) in real time.

Abstract: The present invention relates to an electrolyser for the production of at least one chemical substance, such as hydrogen, oxygen, chlorine or hypochlorous acid, or sodium hydroxide, by electrolysis of pure water or of water containing at least one salt, base and/or acid such as NaCl, H2SO4, KOH or NaOH, comprising a stack of at least a first and a second consecutive electrolytic cells, each electrolytic cell (10) comprising; —an anode, —a cathode, —an ion exchange membrane (11) positioned between the anode and the cathode, the ion exchange membrane (11) of the first electrolytic cell and of the second electrolytic cell being separated by a bipolar electrode (15) constituting on the one hand, the anode of the first electrolytic cell and, on the other hand, the cathode of the second electrolytic cell.

Abstract: Process and apparatus to remove colloids and nitrogen compounds from contaminated water by coagulating the colloids and separating them from the water. The water is then continuously oxidized with chlorine electrolytically to destroy the nitrogen compounds.

Abstract: An electrolyzer device comprises a container configured to receive liquid to be electrolyzed; an anode arranged in the container and operatively connected to a power supply; a cathode arranged in the container so as to surround at least a portion of the anode and operatively connected to the power supply; a first pipe in liquid connection with the container, the first pipe including an intake port arranged in the vicinity of the cathode relative to the anode; and a second pipe in liquid connection with the container.

Abstract: An electrochemical system and method are disclosed for On Site Generation (OSG) of oxidants, such as free available chlorine, mixed oxidants and persulfate. Operation at high current density, using at least a diamond anode, provides for higher current efficiency, extended lifetime operation, and improved cost efficiency. High current density operation, in either a single pass or recycle mode, provides for rapid generation of oxidants, with high current efficiency, which potentially allows for more compact systems. Beneficially, operation in reverse polarity for a short cleaning cycle manages scaling, provides for improved efficiency and electrode lifetime and allows for use of impure feedstocks without requiring water softeners. Systems have application for generation of chlorine or other oxidants, including mixed oxidants providing high disinfection rate per unit of oxidant, e.g. for water treatment to remove microorganisms or for degradation of organics in industrial waste water.

Abstract: The invention relates to the sphere of meeting vital requirements of people in the area of disinfection methods and equipment, involving electrolyzer and electrolysis in the sphere of chemistry. It can be used both to obtain disinfectant and to manufacture new equipment, used to obtain disinfectants. Electrolytes are made subject to electrochemical processes of different intensity in electrode chambers of one and the same electrolyzer; relatively low in cathode chamber and relatively strong in anode chamber. In addition, the construction of electrolyzer involves elements that improve sealing properties of connection, protect materials from electrochemical influences, simplify servicing equipment, supplied with electrolyzers. Technical results involve decreasing the fraction of electrolyte that is discharged to enhance the pH value of disinfectant obtained to 5.8-6.5 with the purpose of improving its efficiency and extend the useful lifetime of the electrolyzer and diversify its scope of application.

Abstract: A three-chamber eletrochemical cell comprises a central chamber, two lateral chambers, and a central part for conveying a fluid solution into and out from the central chamber, the central part being symmetric with respect to a mid-plane of the cell.

Abstract: Electrolyzed water containing chlorine gas and hydrogen gas is provided, wherein the electrolyzed water has improved storage stability and provides satisfactory cleaning efficiency. In a fine bubble electrolyzed water generating apparatus and a method for generating fine bubble electrolyzed water, an electrolytic apparatus having a three-chamber structure is provided including an anode chamber 1 with an anode electrode, a cathode chamber 2 with a cathode electrode, an intermediate chamber 3, and diaphragms 4 and 5 provided between the intermediate chamber and each of the anode chamber and the cathode chamber. An acidic electrolyzed water storage tank 10 and an alkaline electrolyzed water storage tank 11 are provided adjacent to the apparatus. The respective storage tanks are in communication with the anode chamber and the cathode chamber through pipes. The respective storage tanks are in communication with nanobubble generators 14.

Abstract: The methods, systems, and apparatus disclosed herein employ natural, common salts, that are electrochemically activated (ECA) in an aqueous solution to result in an ECA product solution that is safe and non-toxic. Various implementations include a portable table top design having a portable receptacle that includes electrodes. The receptacle fits on a base which provides power for the electrochemical activation. Continuous flow designs receive input water, mix the water with reactants then pass the solution between electrodes to electrochemically activate the solution. Using a metal halide salt, such as NaCl with citric acid may produce a sanitizer or disinfectant. Using a metal carbonate salt, such as K2CO3, as the reactant may result in a cleaning or degreasing solution. Another implementation is that of an immersion wand that can be placed in a reservoir to produce the ECA product solution.

Abstract: A chlorine dioxide generator is provided. The generator includes a controller, a pump electrically connected to the controller and configured to pump reactant feedstock, a power supply electrically connected to the controller, and an electrochemical cell electrically connected to the power supply and configured to receive reactant feedstock from the pump and produce chlorine dioxide. The controller is configured to receive user chlorine dioxide concentration input data and provide control signals to at least one of the pump and power supply to variably control a concentration of chlorine dioxide provided by the electrochemical cell.

Abstract: The systems and methods disclosed herein process produced/flowback water, such as high total dissolved solids produced water, to generate high purity, high value products with little to no waste. The generated high purity, high value products include caustic soda, hydrochloric acid, and/or sodium hypochlorite. Further, the methods and systems disclosed herein generate high quality brine for electrolysis through the systematic removal of contaminants such as but not limited to suspended solids, iron, sulfides, barium, radium, strontium, calcium, magnesium, manganese, fluoride, heavy metals, organic carbon, recoverable hydrocarbons, silica, lithium, and/or nitrogen containing compounds. Further, some products generated by the systems and methods disclosed herein may be recovered and reutilized or sold for other uses, such as carbon dioxide, calcium oxide, chlorine, magnesium oxide, calcium carbonate, and/or barium sulfate.

Abstract: The present invention provides an electrochemical cell for producing hydrogen gas and cupric chloride, comprising an anode compartment including an anode disposed in an anolyte, wherein the anolyte is cuprous chloride in hydrochloric acid, a cathode compartment including a cathode, wherein the cathode comprises an electrocatalyst, and a cation exchange membrane disposed between the anode compartment and the cathode compartment.

Abstract: The present invention relates to the chemical engineering for getting useful products from aqueous solution of electrolytes with various concentration by electrolytic method and it can be used for the production of disinfectants widely utilized in medicine, biology, and ecology. This invention solves a task of disinfectant production with the capacity of a single electrolyser amounting to 1200 litres per hour and up to 600 grams of active chlorine per hour by utilizing 3-7 gram sodium chloride (NaCl) for the production of 1 gram of active chlorine on the basis of a reliable and safe hydraulic structure. The main condition for the effective solving of the task is the initial directing of fresh water supply into the internal tubular cathode chamber for the cathode cooling purposes, before the participation in final disinfectant production process.

Abstract: An improved electrolytic cell, its method and system is disclosed. The electrolytic cell (12) is configured, at least in one design, to recycle the catholyte to increase chlorine capture and concentration in the output solution. The cell (12) includes at least an anode chamber (39) and a cathode chamber (35). And in one design, a chamber or reservoir (31) for that serves as a source of anions and cations for the anode and cathode chambers. The outlet (38) of the cathode chamber is preferably connected in fluid communication with the inlet (44) of a degassing chamber (14) and the outlet (46) of the degassing chamber is preferably connected in fluid communication with the inlet (40) of the anode chamber.

Abstract: A process of producing metal that includes adding a quantity of a alkoxide (M(OR)x) or another metal salt to a cathode compartment of an electrolytic cell and electrolyzing the cell. This electrolyzing causes a quantity of alkali metal ions to migrate into the cathode compartment and react with the metal alkoxide, thereby producing metal and an alkali metal alkoxide. In some embodiments, the alkali metal is sodium such that the sodium ions will pass through a sodium ion selective membrane, such as a NaSICON membrane, into the cathode compartment.

Abstract: A system and method for generating hypochlorous acid, the system comprising an electrolysis cell, a first fluid line configured to direct a first salt solution to a cathode chamber of the electrolysis cell, and a second fluid line configured to direct a second salt solution to an anode chamber of the electrolysis cell, where the second salt solution has a greater salt concentration than the first salt solution.

Abstract: A stabilized mixed oxidant solution may be produced by flowing a starting solution (e.g., salt brine, hypochlorous acid, and/or sodium hypochlorite) through a flow-through electrochemical module including first and second passages separated by an ion permeable membrane while electric power is applied between an anode and cathode in electrical communication with the first and second passages, respectively. An initially acidic anolyte solution received from the first (anode) passage is stabilized by elevating pH to yield a stabilized mixed oxidant solution. Methods of using the mixed oxidant solution are further provided.

Abstract: Corrosion-inhibited hypochlorite compositions and methods of use are disclosed. Corrosion inhibitors including sugar acids and calcium compounds, polyacrylate and calcium compounds, and/or zinc and calcium compounds are used with hypochlorite sources to enhance the longevity and performance of electrochemical cells as well as reducing corrosion of metal in contact with the generated hypochlorite sources. The methods for generation employ a variety of electrochemical cells, beneficially including use of portable electrochemical cell system for production of corrosion-inhibited hypochlorite cleaning solutions.

Abstract: A process is described for the preparation of a stabilized aqueous solution of oxidizing chlorine (anolyte). The process comprises electrolysis of an aqueous solution of sodium chloride or potassium chloride in an electrolytic cell having at least one anode compartment and one cathode compartment separated by a semi-permeable membrane to obtain an anolyte solution in the anode compartment and a catholyte solution in the cathode compartment, and the addition to the anolyte solution produced in this way of a stabilizing agent selected from the group consisting of hydrochloric acid (HCl) of 50 to 250 mg/l, sulphuric acid (H2SO4) of 50 to 350 mg/l, phosphoric acid (H3PO4) of 50 to 500 mg/l, periodic acid (HIO4) of 100 to 1000 mg/l, sodium chloride (NaCl) from 1 to 30 g/l, or any combination thereof. The stabilized anolyte solution produced with the process according to the invention has an advantage of a reduced pH value and increased redox potential value, preferably greater than 960.

Abstract: A method for obtaining a disinfectant from an aqueous solution of sodium chloride by using a diaphragm electrolyser is disclosed. The method comprise channeling a fresh water flow inside a tubular cathode, separating 0.4-0.8% of the quantity of the fresh water flow and channeling the separated fresh water flow into the cathode chamber. Next, 16-20% of sodium chloride at the concentration of 0.02-1.2% is channeled to the anode chamber after a sodium chloride mixer. Fresh water flow is channeled from inside the cathode to a branch of an anode chamber in a cover-mixer of an electrolyser. The flow, originating from the cathode chamber, is discharged for utilization, wherein an anolyte flow from the anode chamber is channeled to the branch of the anode chamber. The concentration of active chlorine in the anolyte is reduced by employing a water supply to a predetermined level required of a disinfectant and the disinfectant with a pH level of 5.5-7.5 is discharged from the electrolyser.

Abstract: Corrosion inhibitor compositions and methods of use are disclosed. Corrosion inhibitors are selected from polyacrylate and calcium corrosion inhibitors, zinc and calcium corrosion inhibitors and/or sugar acids and calcium corrosion inhibitors combined with hypochlorite sources provide use solutions for effective corrosion inhibition for metal surfaces.

Abstract: The present invention relates to an apparatus for preparing electrolyzed sterilizing water. More specifically, the present invention relates to an apparatus for preparing electrolyzed sterilizing water, wherein a rotator is provided inside a mixing portion, thereby uniformly mixing and dispersing an electrolysis product and feed water.

Abstract: Methods and compositions for improving water quality by reducing chlorine demand, decreasing disinfection by-products and controlling deposits in drinking water distribution systems include adding low concentrations of supplemental oxidants, for example, RE-Ox® to the systems.

Abstract: The present invention relates to a manufacturing method of medical sterilized normal saline, more specifically, to such a method for manufacturing sterilized normal saline for medical purpose with effective sterilizing efficacy comprising: a step of disposing at least one electrode set immersed in saline solution of pH 4.0 to pH 7.5 including a pair of electrodes with flat surface separated from each other by an interval between 1 mm and 3 mm, the flat surfaces of the electrodes facing each other; and a step of supplying 30 mA to 200 mA direct current to the electrodes by applying 2.4V to 3.3V DC power to the electrodes; wherein free chlorine is reliably and stably generated as having concentration range between 0.17 ppm and 6 ppm from electrolysis between electrodes.

Abstract: A chlorine treatment apparatus includes a housing with a cavity containing a chlorine generator for chlorinating a liquid such as water and at least three openings to the cavity. The chlorine generator may be an electrolytic cell. Some embodiments may include one or more plugs for closing the openings. The plugs may be keyed to operate with only certain of the openings. Yet other embodiments may include sensors for monitoring various aspects of the liquid such as temperature, salinity, flow rate, and chlorine concentration.

Abstract: There is provided a method of production of chlorine.sodium hydroxide capable of being operated stably and economically by preventing calcium from being deposited in an ion exchange membrane. The liquid retention layer 3 having a liquid retention amount per unit volume of the liquid retention layer of 0.10 g-H2O/cm3 or more and 0.80 g-H2O/cm3 or less is put between the ion exchange membrane 12 and the gas diffusion electrode 16. Calcium ions transferred through the ion exchange membrane 12 easily diffuse, thereby making it possible to suppress increase in an electrolytic voltage and drop in current efficiency generated by deposition of the calcium ions inside the ion exchange membrane 12.

Abstract: An Electrolysis cell assembly to produce diluted Sodium Hydroxide solutions (NAOH) and diluted Hypochlorous Acid (HOCL) solutions having cleaning and sanitizing properties. The electrolysis cell consists of two insulating end pieces for a cylindrical electrolysis cell comprising at least two cylindrical electrodes with two cylindrical diaphragms arranged co-axially between them. The method of producing different volumes and concentrations of diluted NAOH solutions and diluted HOCL solutions comprises recirculating an aqueous sodium chloride or potassium chloride solution into the middle chamber of the cylindrical electrolytic cell and feeding softened filtered water into the cathode chamber and into the anode chamber of the cylindrical electrolysis cell.