143 results about "Electrodeionization" patented technology

The utility model discloses an anion and cation double-membrane type electrodeionization device. The device internally comprises a cathode chamber, a resin chamber and an anode chamber; the cathode chamber and the resin chamber are isolated by a cation exchange membrane, the anode chamber and the resin chamber are isolated by an anion exchange membrane, and the distance between the two membranes is 10-100cm. According to the utility model, the electric regeneration efficiency of the invalid resin and the quality of subsequent produced water can be obviously improved, electrolyte solution is not consumed, the environmental protection problem is avoided, an electrode water circulating pump can be omitted, and the system and operation management are simplified.

The utility model discloses waste water electro-desalting equipment, which belongs to the technical field of waste water treatment, and comprises a cooling tower and a cooling water tank arranged at the bottom of the cooling tower, the input end of the cooling tower is communicated and connected with a circulating water main pipe, the circulating water main pipe is communicated and connected with a circulating water branch pipe, and the circulating water branch pipe is communicated and connected with a circulating water outlet pipe. The output end of the circulating water branch pipe is connected with an electrochemical water treatment device, a large number of scale inhibition small molecules can be generated in the electrolysis process, a very good scale inhibition effect can be achieved, a dense ferroferric oxide (Fe3O4) protection film can be generated on the surfaces of a system pipeline and the pipe wall of heat exchange equipment by using an electrochemical technology for a long time in a circulating water system, and the service life of the circulating water system is prolonged. The corrosion rate of carbon steel equipment is less than or equal to 0.075; and when the electrochemical water treatment device continuously operates, a circulating water system can safely and stably operate in an energy-saving and zero-pollution manner for a long time.

The invention relates to a portable hydrogen conductivity measuring device based on electrodeionization. The portable hydrogen conductivity measuring device comprises a sampling detection subsystem, an electrodeionization subsystem, a measuring subsystem and a processor, the sampling detection subsystem is communicated with the electrodeionization subsystem and the measurement subsystem and is used for controlling the temperature, the pressure and the flow of sample water flowing into the electrodeionization system; the electrodeionization subsystem is communicated with the measurement subsystem and is used for removing cations in the sample water; the measurement subsystem is communicated with the electrodeionization system and is used for accurately measuring the conductivity, namely the hydrogen conductivity, of the sample water subjected to EDI treatment in real time; and the processor is used for providing a stable excitation signal for the conductivity electrode, acquiring an original resistance or conductivity signal and a temperature signal of the electrode, executing a temperature compensation algorithm to obtain a hydrogen conductivity value at 25 DEG C, outputting a final result to the display screen, and transmitting the final result to an external system. The invention also discloses a corresponding measurement method, electronic equipment and a computer readable storage medium.

The invention discloses a hydrogen conductivity electric regeneration ion exchange system, and relates to the field of hydrogen conductivity. The hydrogen conductivity electric regeneration ion exchange system comprises an EDI module main body, a sample injection valve, a filter, a measuring cell and a flow meter. According to the hydrogen conductivity electro-regeneration ion exchange system, a detected water sample enters the EDI module main body, cations are exchanged into hydrogen ions under the exchange action of cation exchange resin, the anode is subjected to an oxygen evolution reaction to generate the hydrogen ions, and the generated hydrogen ions move towards the cathode under the action of an electric field; in the operation process, the system continuously carries out cation adsorption-regeneration, the advanced electrodeionization technology is adopted, the cations in water vapor are efficiently removed, automatic regeneration of the EDI resin is achieved, dynamic balance is maintained, and manual regeneration of the resin is not needed.

The invention discloses an electrodeionization device for preparing ultrapure water, and relates to the technical field of water treatment.The electrodeionization device comprises a shell, an electrodeionization cavity, a cathode chamber, an anode chamber and a cation replacement module, a deionization module is arranged between the cation replacement module and the cathode chamber, and a concentrated water chamber is arranged between the deionization module and the cation replacement module; the deionization module comprises a first cation exchange membrane, a decation fresh water chamber, a first bipolar membrane, a deanion fresh water chamber and a first anion exchange membrane which are arranged in sequence, and the cation replacement module comprises a second cation exchange membrane, a cation replacement chamber, a third cation exchange membrane, an ion supply chamber and a second anion exchange membrane which are arranged in sequence; to-be-treated water sequentially flows through the cation replacement chamber, the deanion fresh water chamber and the decation fresh water chamber, and a strong acid and strong alkali salt solution is contained in the ion supply chamber. The device has the advantages of efficiently removing soluble acid gas, reducing the scaling risk of the concentrated water chamber and improving the resistivity of produced water.

Water to be treated (supplied water) (W4) having a pH of 8 or more is supplied to an electrodeionization device (8), and the water to be treated (W4) is supplied to a desalination chamber (25) of the electrodeionization device (8). Then, desalted water (W5) that has passed through the desalination chamber (25) is separated and supplied to the concentration chamber (26) in the opposite direction to the desalination chamber (25). As a result, even if the pH of the water to be treated (water supply) (W4) is 8 or more, the ion concentration in the water to be concentrated in the concentration chamber (26) is lower toward the extraction side of the desalination chamber (25). In particular, the movement of inorganic carbonate ions from the concentration chamber (26) near the outlet of the desalination chamber of the electrodeionization device (8) to the desalination chamber (25) can be reduced, and a decrease in the electrical resistivity of the desalted water (W5) can be prevented. According to this method for operating an electrodeionization device, it is possible to efficiently produce high-quality treated water even if water having a high pH is supplied to the electrodeionization device.

The invention discloses a method and a system for preparing normal-temperature water for injection, and relates to the technical field of preparation of water for injection. According to the method and system for preparing the normal-temperature injection water, purified water serves as an initial water source and enters a purified water tank, after water in a purified water storage tank is pumped out through a circulating pump, pathogenic microorganisms are killed through irradiation of an ultraviolet lamp, suspended impurities of the purified water are intercepted based on a 0.45-micron filter, heat sources in the water are filtered through an ultrafiltration membrane after the water is subjected to continuous electrodeionization, and the normal-temperature injection water is obtained. After residual impurities are removed, the temperature is adjusted based on the heat exchanger, and produced water enters an injection water storage tank. Through the combined design of cooperative sterilization of the terminal ultrafiltration membrane and the ultraviolet device, the removal effect on colloidal particles and pathogenic microorganisms is enhanced, the load on the terminal ultrafiltration membrane is reduced, frequent disinfection and replacement of the membrane are not needed, the equipment maintenance frequency and the consumable cost are reduced, and meanwhile, the shutdown risk caused by membrane pollution is avoided.

A method for the purification of a reaction crude can include employing one or more electrodeionization modules each including a cathode, an anode, and at least one ion-depletion compartment interposed between pairs of ion-concentration compartments. Each ion-concentration compartment can contain an ion-exchange medium. The method can include passing a reaction crude through each ion depletion compartment. The reaction crude can be produced from a process including at least one ionic species. The method can include supplying current between the anode and the cathode. The method can include recovering an ion-depleted stream from each ion-depletion compartment. The method can include recovering the ionic or ionizable species from each ion-concentration compartment.

This pure water production apparatus comprises a reverse osmosis membrane and an electrodeionization device 2. In the electrodeionization device 2, anion exchange membranes 11 and cation exchange membranes 12 are alternately arranged between an anode plate 15 and a cathode plate 16, and by constituting compartments with the anion exchange membranes 11 and the cation exchange membranes 12, a desalting chamber 13 and a concentration chamber 14 are formed, and an anode chamber and a cathode chamber are formed at respective ends. As feed water to the desalting chamber 13, permeated water W1 from a reverse osmosis membrane device 1 is supplied to the desalting chamber 13 to obtain treated water W2. Further, as feed water W3 to the concentration chamber 14, permeate from the reverse osmosis membrane device 1 is supplied, and concentrated water W4 is discharged. In the electrodeionization device 2, the desalting chamber 13 is filled with substantially 100% by weight of an anion exchange resin. According to this pure water production apparatus, the removal efficiency of weak acid ions such as boron and silica can be improved without using chemicals.

In an electrodeionization device, a concentration compartment and a desalting compartment are defined by ion exchange membranes between a positive electrode and a negative electrode; concentrated water is caused to flow into the concentration compartment; water to be treated is caused to flow into the desalting compartment and is extracted as deionized water; and part of the deionized water is caused to flow as concentrated water into the concentration compartment in a direction opposite the flow direction of the desalting compartment. Water supplied to the electrodeionization device is treated using a water softener, an RO device, and a membrane degassing device, and the total concentration of Ca ions and Mg ions is 50 μg / L or lower.

The electro-deionized water production system (EDI system) can be assembled quickly without requiring skilled labor. [Solution] The assembly equipment for assembling an EDI device in which both the desalination chamber and the concentration chamber are composed of a frame having openings and ion exchange resin is filled in the openings includes a membrane extraction robot 60 that has the function of extracting the ion exchange membrane 30 stored in water, a handling robot 50 that has the function of transporting the frame 40 and placing it on the work area, receiving the ion exchange membrane 30 extracted by the membrane extraction robot 60 and transporting it to the work area, and a resin supply robot 70 that has the function of filling the openings of the frame 40 placed on the work area with ion exchange resin. After the handling robot 50 has finished filling the openings of the frame 40 with ion exchange resin, it positions the ion exchange membrane 30 so as to cover the filled ion exchange resin.

A water preparation apparatus for determining an amount of total chlorine in purified water is disclosed. The water preparation apparatus includes a chlorine sensing system, a water pretreatment filter, a reverse osmosis filter, and an electrodeionization (“EDI”) module. The chlorine sensing system is configured to determine an amount of total chlorine in the purified water by applying, at a first time, a source voltage to the purified water and removing, at a second time, the source voltage. The chlorine sensing system then measures, after the second time, an electrical parameter of the purified water. The chlorine sensing system determines the amount of total chlorine in the purified water based on the measured electrical parameter.

The invention relates to the technical field of wastewater treatment, and particularly discloses a purification treatment process for liquid crystal panel factory developing liquid waste. The purification treatment process for the liquid crystal panel factory developing solution waste liquid comprises the following steps: S1, adding a composite acid precipitation solution into the developing solution waste liquid, and meanwhile, carrying out ultraviolet irradiation treatment to obtain a suspension; s2, adding an amphiphilic coagulant aid into the suspension, stirring for reaction, and standing; the amphiphilic coagulant aid is an acrylamide-dimethyl diallyl ammonium chloride-glycidyl methacrylate terpolymer, and the amphiphilic coagulant aid is an acrylamide-dimethyl diallyl ammonium chloride-glycidyl methacrylate terpolymer; s3, carrying out centrifugal separation on the solution system after standing in S2 to obtain a tetramethyl ammonium salt solution; and S4, converting the tetramethyl ammonium salt solution into a TMAH solution by using bipolar membrane electrodeionization equipment. According to the treatment process, the purification and removal effect on the photoresist in the waste developing solution is effectively improved, and the recycling reliability of the TMAH is effectively enhanced.

Provided is a method for operating an electric deionization apparatus in which a concentration chamber and a desalination chamber are formed by arranging a plurality of anion exchange membranes and cation exchange membranes between a positive electrode and a negative electrode, and the desalination chamber is filled with an ion exchanger. The electric deionization apparatus is operated under the conditions that satisfy the following formulae (1), (2), and (3).　(1): 50 < A < 200, (2): AA / CDout < 0.2, (3): AA = D × (Cc × A) / dx) × Q × 103 (ng / L) According to this method for operating an electric deionization apparatus, the removal rate of weak electrolytes such as boron is increased, and treated water of high water quality can be obtained.

This electric deionization apparatus 1 is formed by arranging sub-blocks 3A-3F side by side. Water supply ports 4A, 4B for arranging a water supply line 4 are formed at both upper ends of the cells of the sub-blocks 3A-3F. Concentrated water supply ports 6A, 6B for arranging a concentrated water supply line 6 are formed at both lower ends of the cells. Constant flow valves 11A, 11B are respectively provided on right and left sides of the concentrated water supply line 6, and manual valves 12A, 12B are respectively provided on right and left sides of a concentrated waste water outflow line 7. This electric deionization apparatus can efficiently produce high quality treated water.

This water treatment system provided with an EDI device comprises: a circulation pipe 36 that circulates treated water (deionized water) from an EDI device 10 to a preceding stage of the EDI device 10; a water supply pipe 35 that supplies the treated water toward a use point; a flow rate adjustment unit 34 that distributes the treated water to the circulation pipe 36 and the water supply pipe 35; a circulation pipe 44 that circulates concentrated water from the EDI device 10 to the preceding stage of the EDI device 10; a discharge pipe 43 that discharges the concentrated water to the outside of the system; a flow rate adjustment unit 42 that distributes the concentrated water to the circulation pipe 44 and the discharge pipe 43; and water quality monitoring devices 51 to 54 that monitor the water quality within the water treatment system from the EDI device 10. At least one of the flow rate adjustment units 34, 42 is controlled on the basis of a monitoring result from at least one of the water quality monitoring devices 51 to 54.

The invention discloses electrodeionization ultrapure water equipment with a water shortage protection function, and relates to the technical field of electrodeionization ultrapure water, the electrodeionization ultrapure water equipment comprises a plurality of membrane stack units arranged between a cathode plate and an anode plate in a linear array; the membrane stack unit comprises a negative membrane, a concentrated water partition plate, a positive membrane and a fresh water partition plate which are sequentially arranged from the cathode to the anode, and the concentrated water partition plate and the fresh water partition plate are each provided with a through groove, a raw water inlet, a first concentrated water inlet, a first concentrated water outlet, a second concentrated water inlet, a second concentrated water outlet, a first fresh water inlet, a first fresh water outlet and a second fresh water outlet; ion exchange resin is arranged in the through groove; the device further comprises a water shortage protection assembly. By arranging the water shortage protection assembly, water can be supplemented to the interior through the first fresh water inlet and the second concentrated water inlet, so that the situation of dry burning caused by blockage of the water distribution piece is prevented.

An electrodeionization device includes a deionization chamber partitioned by a pair of ion exchange membranes; and a concentration chamber disposed adjacent to the deionization chamber via the ion exchange membrane which is disposed on a side facing a cathode. When representing a particle size of 0.1 mm or more and 0.4 mm or less by small particle size; and a particle side exceeding 0.4 mm by large particle size, a large particle size layer consisting of an ion exchange resin of large particle size, and a mixed particle size layer in which ion exchange resins of large particle size and small particle size are mixed are arranged in the concentration chamber along a flow direction of water to be treated. At least a part of the ion exchange resin filled in the concentration chamber is a cation exchange resin.

This method for controlling an electrodeionization device is for an operation for changing the amount of water supplied to an electrodeionization device 1. The passing water flow rate is changed such that a flow rate of water supply W0 to a desalting chamber 36 of the electrodeionization device 1 is 50％ or less per minute with respect to a maximum water supply flow rate in the desalting chamber 36 of the electrodeionization device 1 while a flow rate of concentrated water W5 discharged from the electrodeionization device 1 is kept constant. According to such an electrodeionization device operation method, it is possible to prevent a reduction in quality of treated water when an operation in which the passing water flow rate is changed is performed.

The invention relates to a method for purifying hydrogen peroxide. More specifically, the method comprises the steps of: regenerating the adsorbent resin of the primary purification system using an acidic solution, an alkaline solution, or a combination thereof; purifying the hydrogen peroxide crude product by using the adsorption resin of the primary purification system; and purifying the primarily purified hydrogen peroxide solution using a secondary purification system. The secondary purification system comprises an electrodeionization system, and the adsorption resin is used for removing organic carbon and positive ions in the hydrogen peroxide crude product.

The application discloses a high-temperature continuous electric desalination anode and a preparation method thereof. The high-temperature continuous electric desalination anode is composed of a titanium base body, an intermediate transition layer and a surface iridium-rich active layer, and comprises the following steps: dissolving polypyrrole derivative carbon-coated iridium oxide nanoparticles, tantalum salt and transition metal salt in a solvent, uniformly mixing, coating on the surface of the titanium base body, drying, heat oxidizing, then repeatedly coating multiple times, and heat treating to obtain a titanium anode containing the intermediate transition layer; dissolving polypyrrole derivative carbon-coated iridium oxide nanoparticles, tantalum salt and transition metal salt in a solvent, uniformly mixing, coating on the surface of the titanium anode containing the intermediate transition layer, drying, heat oxidizing, repeatedly coating multiple times, and finally heat treating. The application reduces the comprehensive cost of the iridium tantalum coating and prolongs the service time by amorphous carbon coating of iridium oxide nanoparticles, introduction of relatively cheap transition metal elements and gradient composition design, and the obtained anode exhibits excellent voltage stability characteristics at 75 DEG C.

The utility model relates to an electrodeionization pipeline module for preventing water flow bias, which comprises a large electrodeionization module, the large electrodeionization module comprises at least two submodules arranged in parallel, an inflow pipe for water inflow and an outflow pipe for water outflow, the inflow pipe is arranged below the submodules, the outflow pipe is arranged above the submodules, and the submodules are arranged in parallel. The inflow pipe is connected with the lower portion of each sub-module through a first branch pipe, the outflow pipe is connected with the upper portion of each sub-module through a second branch pipe, the inflow pipe and the outflow pipe are horizontally arranged, the first branch pipe is perpendicular to the inflow pipe, and the second branch pipe is perpendicular to the outflow pipe. The water inlet side of the inflow pipe and the water outlet side of the outflow pipe are distributed on the two sides of the large electrodeionization module and are symmetrically arranged with respect to the center of the large electrodeionization module. The water inlet end and the water outlet end are distributed on the two sides respectively, so that it is guaranteed that the amount of water flowing out of different sub-modules is kept the same in the path of a flowing pipeline finally, the total local damage of all the sub-modules is similar, and the minimum bias flow is achieved.

The utility model discloses an intelligent self-adaptive electrodeionization system for a hydrogen conductivity meter. The intelligent self-adaptive electrodeionization system comprises an electrodeionization system main body and a structure sensor group, a quantification unit and a real-time regulation and control unit; the structural sensor group is arranged on the electrodeionization system main body and is used for acquiring structural dynamic response; the quantifying unit comprises a volume measuring element, a sectional area measuring element and a height measuring element; the volume measuring element is used for determining resin capacities of the concentrated water chamber and the fresh water chamber; the sectional area measuring element is used for determining sectional areas of the concentrated water chamber and the fresh water chamber; the height measuring element is used for determining the height ratio of the concentrated water chamber to the fresh water chamber; the real-time regulation and control unit comprises a constant-voltage unit, a variable-voltage unit, a constant-current unit, a variable-current unit, a constant-flow unit and a variable-flow unit which are respectively used for stabilizing and / or changing the membrane stack voltage, the membrane stack current and the water inlet flow of a module inlet. The utility model further discloses a hydrogen conductivity meter which comprises the intelligent self-adaptive electrodeionization system and a conductivity complete machine, and the conductivity complete machine comprises a conductivity electrode and a transmitter.

This invention discloses an electro-deionization water treatment device and a treatment method for chemical water purification, relating to the field of water treatment equipment. A constant flow inlet assembly is installed at the inlet ends of both the concentrate chamber and the pure water chamber. When water enters the concentrate and pure water chambers, the hydraulic balancing unit within the constant flow inlet assembly moves upward and contracts under the pressure of the incoming water. During this contraction, the internal pressure gradually increases until the pressure within the hydraulic balancing unit balances the incoming water pressure. Simultaneously, the hydraulic balancing unit adjusts the valve opening size of the constant flow valve assembly during the pressure balancing process. This ensures that the valve opening is smaller when the water pressure is higher and larger when the water pressure is lower. By automatically adjusting the valve opening size according to the water pressure, the inlet flow rate is not affected by the water pressure, thus maintaining a suitable flow ratio between the concentrate and pure water chambers to improve the water treatment effect of the equipment.

The invention relates to the technical field of electrodeionization reactors, in particular to a spiral runner type anti-silicon scale membrane-free electrodeionization reactor. Comprising a shell, an anode assembly and a cathode assembly which are coaxially arranged, and a resin cavity filled with an ion exchange resin layer is formed between the anode assembly and the cathode assembly; a spiral flow guide piece is arranged in the resin cavity to form a spiral flow channel, the flow guide piece is formed by axially arranging a plurality of spiral flow guide plates at intervals, the flow guide plates are provided with through grooves, the included angle between every two adjacent through grooves is equal to 1, and spiral grooves can be formed in the plate faces at gradually-changing intervals. The structure forces water flow to rotate and propel, enhances radial mixing, quickly disperses OH <-> local enrichment near the cathode, inhibits silicic acid polymerization and composite silicate deposition, reduces pressure drop increase, stabilizes effluent quality, and improves long-term operation reliability of membrane-free EDI under high-silicon water quality.

An electrodeionization device includes a spacer comprising a first inlet port, a first outlet port, a first plurality of first flow channels configured to direct fluid in a first direction from the first inlet port to the first outlet port, and a second flow channel in series fluid communication with the first plurality of first flow channels between the first inlet port and first outlet port and configured to direct fluid in a second direction different from the first direction from the first inlet port to the first outlet port.

The application relates to the technical field of water treatment, and discloses a system for deep treatment and reuse of iron ore sand industrial water in an island, which comprises, in sequence, a water inlet pretreatment unit, a biochemical denitrification and phosphorus removal unit, a sedimentation and separation unit, a membrane physical interception unit and an electrodeionization unit. The biochemical denitrification and phosphorus removal unit is an AAO-AO reaction tank, which is internally divided into five biochemical reaction zones in sequence and is provided with a nitrification liquid internal reflux pipeline; the membrane physical interception unit comprises a rotary drum filter tank, an ultrafiltration unit and a nanofiltration unit; the main body of the electrodeionization unit is internally configured with a reticular platinum-plated titanium electrode and a stainless steel compression spring for providing downward mechanical pressure, and is internally filled with a resin layer formed by uniformly and integrally filling and mixing strong acid cation resin, weak acid cation resin, strong base anion resin and weak base anion resin. The system is processed by biochemical reaction, membrane and electrodeionization in cooperation, high salt hardness of raw water is removed, produced water reaches the standard of iron ore sand water, no chemical agent is needed for regeneration, and the water recovery rate is improved.

The utility model discloses a positive and negative double-membrane electrodeionization device with an integrated frame body structure, which comprises a reaction chamber enclosed by a frame body, an anode chamber cover plate and a cathode chamber cover plate, and the reaction chamber internally comprises an anode chamber, a resin chamber and a cathode chamber which are formed by an anion exchange membrane and a cation exchange membrane at intervals and are arranged in sequence, the resin chamber is respectively communicated with a water inlet / regeneration water outlet connector and a water production / regeneration water inlet connector; the device further comprises a plurality of rigid supporting pieces, each rigid supporting piece is provided with a binding face capable of being tightly attached to the outer wall face of the frame body, the frame body is clamped between the anode chamber cover plate and the cathode chamber cover plate and connected in a sealed mode, and the rigid supporting pieces are distributed at intervals in the mode that the binding faces of the rigid supporting pieces are tightly attached to the outer wall face of the frame body. And the two ends of each rigid supporting piece are fixedly connected with the anode chamber cover plate and the cathode chamber cover plate respectively. The tight hooping effect of the rigid supporting piece can greatly improve the bearing strength of the whole device, so that the device is not prone to deformation and fracture when bearing large internal pressure, and the service life of the device is greatly prolonged.

The present invention relates to a carbon dioxide capture and biogas upgrading system using an electrodeionization device connected to a microbubble generator, the system according to the present invention being provided with an electrodeionization device (400) having a pair of electrodes (410, 410), the present invention relates to a system for purifying biogas comprising a stack of electrodes (420, 420) and a bipolar membrane (BP) (430), an alkaline resin wafer (BRW) (440), a cation exchange membrane (CEM) (450), an acidic resin wafer (ARW) (460) and a bipolar membrane (BP) (470) arranged in sequence between the electrodes, the system consisting of a process comprising the steps of: 1) saturating carbon dioxide in biogas in a 1% NaCl aqueous solution; (2) carrying out microbubbling on carbon dioxide bubbles saturated in the NaCl aqueous solution until the size is 10-50 microns, and dispersing; and (3) enabling the mixture of the biogas and the NaCl aqueous solution to sequentially pass through an alkaline chamber and an acid chamber of an electrodeionization device based on a cation exchange membrane (CEM).

The utility model discloses an EDI (Electrodeionization) device, which belongs to the field of EDI and comprises an anode plate, a first partition plate, an anode film, a second partition plate, at least one group of treatment units, a first cation film, a third partition plate, a cathode film, a fourth partition plate and a cathode plate which are sequentially arranged from left to right, the treatment unit comprises a second cation membrane, a fifth partition plate, a first anion membrane, a sixth partition plate, a bipolar membrane, a seventh partition plate, a third cation membrane, an eighth partition plate, a second anion membrane and a ninth partition plate which are sequentially arranged from left to right, anion exchange resin is arranged in the sixth partition plate, cation exchange resin is arranged in the seventh partition plate, and the cation exchange resin is arranged in the ninth partition plate. The water outlet of the sixth partition plate is communicated with the water inlet of the seventh partition plate. According to the utility model, continuous online cleaning can be realized, and high-concentration saline water can be treated.