KR20200136784A - Methods and devices for recovery of metamorphic metals in plated waste water using ion-exchange fibers and electrolytes - Google Patents

Abstract

The present invention relates to a method for recovering metamorphic metals in plated waste water using an ion-exchange fiber and an electrolyte. Plated waste water is selectively supplied to first and second ion-exchange fiber chambers through a supply pump installed at a lower side of a plated waste water catchment tank in which the plate waste water is introduced. After plated waste water supplied to fiber support parts of the first and second ion-exchange fiber chambers is selectively supplied to a cylindrical fiber support part by opening/closing a solenoid valve installed at a supply pipe, metamorphic metals in plated waste water introduced through the ion-exchange fiber are collected. In a chamber in which the plated waste water is not introduced, cleaning liquid of a fiber cleaning solution catchment tank is supplied to a cleaning solution supply pipe of a center of the fiber support part so that the ion-exchange fiber is reversely washed. The reversely washed metamorphic metal negative ion solution is introduced into an electrolyte tank to recover the metamorphic metals by electrolyte. The waste from which the metamorphic metals are removed through the chambers is introduced into a positive ion exchange fiber chamber through the supply pipe to completely remove a very small amount of metamorphic metals to be recovered in a cleaning water catchment tank through an activated carbon filter and a micro-filter.

Description

TECHNICAL FIELD [Methods and devices for recovery of metamorphic metals in plated waste water using ion-exchange fibers and electrolytes}

The present invention facilitates recovery of valuable metals in plating wastewater by using an ion exchange resin or ion exchange fiber in which valuable metals in plating wastewater are collected, and an electrolytic device in which a cleaning solution obtained by backwashing the ion exchange resin and fibers flows in. In particular, it relates to a method and apparatus for recovering valuable metals, and in particular, the first and second ion exchange in which the plating wastewater flowing into the plating wastewater collection tank is installed inside the ion exchange resin or the fiber support part through a supply pipe. Valuable metal ions are collected by selectively passing through the chamber, and the ion exchange resin or fiber in the first and second ion exchange chambers is backwashed through a cleaning solution and supplied to the electrolyzer, and then flowed into the electrolyzer together with the washing water. Valuable metal ions are recovered by electrolysis, so that valuable metals contained in plating wastewater can be easily and easily recovered, while plating wastewater can be recycled, thereby contributing to cost reduction while preventing environmental pollution. A method and apparatus for recovering valuable metals in plating wastewater using an ion exchange resin and an ion exchange fiber.

Conventional methods of treating wastewater containing heavy metals are known as a method using a reverse osmosis membrane and a method of evaporation and concentration, but these methods have a disadvantage that the initial investment cost is higher and the operation cost is excessive compared to the chemical treatment. will be.

Conventional methods of treating wastewater containing heavy metals are known as a method using a reverse osmosis membrane and a method of evaporation and concentration, but these methods have a disadvantage that the initial investment cost is higher and the operation cost is excessive compared to the chemical treatment. will be.

In the case of the method of treating wastewater containing heavy metals using a reverse osmosis membrane, heavy metal wastewater is treated in parallel with other wastewater treatment, and is relatively less affected by the properties of the wastewater, and operation automation is possible. In addition, there is an advantage in that the amount of sludge is small, but pre- and post-treatment processes and secondary concentration and drying facilities are required, and even effective components in the cleaning solution are removed, and consumables such as microfilters are frequently replaced.

In general, in the process of performing plating on the substrate when manufacturing semiconductors and semiconductor components or printed circuit boards, the plating surface is washed with nonionic water after the plating operation is performed, which occurs during the washing process of the plated area. While the plating metal is present in the plating wastewater, in most cases, it is discharged after wastewater treatment without proper recovery process.

In the case of the method of treating wastewater containing heavy metals by evaporation and concentration of moisture, a separate heater is required for evaporation of the wastewater, resulting in excessive facility cost, and in particular, there is an inefficient disadvantage due to high energy cost. will be.

In particular, in the case of manufacturing a lead frame, the plating wastewater generated in the cleaning process of the lead frame contains about 50 ppm or more of silver, but since this is treated without a separate recovery process, the recovery rate of high-purity valuable metals is very low. There were a lot of problems such as becoming.

The present invention has been devised to improve the conventional problems as described above, and its object is to fundamentally block soil pollution and water pollution due to metals contained in plating wastewater generated in the plating process. Ions that can easily recover and reuse the valuable metals contained in the plating wastewater to increase the efficiency of resources and to recycle plating wastewater as cleaning water, thereby saving resources and preventing the generation of wastewater. It is to provide a method and apparatus for recovering valuable metals in plating wastewater using exchange resins and ion exchange fibers.

In addition, another object of the present invention is to increase the collection rate of valuable metals by selectively installing ion exchange resins and ion exchange fibers in the chamber collecting the valuable metals of the plating wastewater, thereby further enhancing the efficiency of recycling the valuable metals. It is to provide a method and apparatus for recovering valuable metals in plating wastewater using an improved ion exchange resin and ion exchange fiber.

As described above, according to the method and apparatus for recovering valuable metals in the plating wastewater according to the present invention, it is possible to fundamentally block soil contamination and water pollution due to metals contained in the plating wastewater generated in the plating process, etc. Valuable metals contained in wastewater can be easily recovered and reused, thereby increasing the efficiency of resources, allowing the plating wastewater to be recycled as cleaning water, thereby saving resources and preventing the generation of wastewater. have.

Although the present invention has been shown and described with reference to specific embodiments, it is understood in the art that the present invention can be variously modified and changed without departing from the spirit or field of the present invention provided by the following claims. It should be noted that those with ordinary knowledge can easily find out.

1 is a schematic configuration diagram of a valuable metal recovery apparatus for explaining a method for recovering valuable metals in plating wastewater using an ion exchange resin and an ion exchange fiber according to the present invention.
2 is a view showing the internal structure of the first and second ion exchange fiber chambers of the present invention.
3 is a schematic configuration diagram of a valuable metal recovery apparatus for explaining a method of recovering valuable metals in plating wastewater using an ion exchange resin according to another embodiment of the present invention.

As a technical means for achieving the above object, the present invention is a plating wastewater collecting tank in which a supply pump is installed at one side of the lower part so that plating wastewater is introduced and transferred through a supply pipe, and a water level control sensor is installed on one side wall, A cylindrical fiber support part is installed in the plating wastewater collecting tank and the supply pipe and filled with ion exchange fibers composed of strongly acidic cationic fibers, and a spray nozzle to spray a cleaning solution for washing the ion exchange fibers in the center of the fiber support part. The provided cleaning liquid supply pipe is vertically installed, and a solenoid valve is installed in each of the first and second supply pipes to selectively supply the plating wastewater to the chamber in the supply pipe connected to the plating wastewater collection tank to exchange valuable metal anions of the plating wastewater. First and second ion exchange fiber chambers installed to be adsorbed by fibers, and pressure pumps installed at one side of the bottom by being extended with the first and second ion exchange fiber chambers, wherein ion exchange fibers in the cylindrical fiber support are selectively The fiber cleaning solution collection tank is filled with the fiber cleaning solution to be backwashed, and the solution supply pipe is erected to supply the valuable metal anion solution obtained by backwashing the ion exchange fibers in the chamber. An electrode terminal plate is installed, and a heater is installed on the upper side to recover valuable metals in the cleaning solution by electrolysis. An activated carbon filter and a micro filter are provided in the supply pipe connected to the first and second ion exchange fiber chambers. It is by providing a device for recovering valuable metals in plating wastewater using an ion exchange fiber, comprising: a washing water collecting tank installed to collect the washing water cleaned through the interposed therebetween.

In addition, the present invention is a plating wastewater that selectively supplies the plating wastewater to the first and second ion exchange fiber chambers through a supply pipe installed with a filter through a supply pump to a lower side of the plating wastewater collecting tank into which plating wastewater flows. In the supplying step, the plating wastewater supplied to the first and second ion exchange fiber chambers can be selectively introduced into the first and second ion exchange fiber chambers by the opening and closing action of the solenoid valve installed in the connection pipe. , At this time, while plating wastewater passes through the ion exchange fibers embedded in the cylindrical fiber support portion inside the first and second ion exchange fiber chambers, valuable metal anions are collected in the fiber, and the wastewater from which the valuable metal anions are removed is Valuable metal ion collection step transferred through the lower supply pipe, the cleaning solution of the fiber cleaning solution collection tank is passed through the solution supply pipe through the pressure pump in the chamber where the plating wastewater does not flow in the first and second ion exchange fiber chambers. The ion exchange fiber backwashing step is supplied to the cylindrical fiber support in the chamber, and is sprayed through a cleaning liquid supply pipe formed in the center of the fiber support to backwash the ion exchange fibers collected with valuable metals for a certain period of time. The valuable metal anion solution after backwashing the ion exchange fiber from the fiber support is introduced into the electrolyte tank filled with the electrolyte through the solution supply pipe on the upper side of the chamber, and the electrode terminal plates installed on both sides of the electrolyte filled in the electrolyte tank are energized. To recover valuable metals in the solution, a heater is installed in the electrolytic tank to heat the electrolyte to 30~70℃

The wastewater from which the valuable metals are removed through the first and second ion exchange fiber chambers is reduced to washing water through an activated carbon filter and a micro filter of a supply pipe extending to one side of the chamber, and then the washing water collecting tank By providing a method for recovering valuable metals in plating wastewater using an ion-exchange fiber including;

In addition, in the present invention, a supply pump is installed on one side of the lower part so that plating wastewater is introduced into the interior and transferred through the supply pipe, and a plating wastewater collecting tank in which a water level control sensor is installed on one wall surface is addressed to the plating wastewater collecting tank and the supply pipe. The first and second ions installed to adsorb the valuable metal anions of the plating wastewater into the ion exchange resin by filling the exchange resin and installing solenoid valves in the first and second supply pipes to selectively supply plating wastewater to the supply pipe. Exchange resin chamber, a pressure pump extended to the first and second ion exchange resin chambers and the solution supply pipe and installed on one side of the bottom, and the first and second ion exchange resin chambers are selectively filled with a resin regeneration solution inside to backwash. The resin regeneration solution collection tank, the solution supply pipe and the solution supply pipe to supply the valuable metal solution backwashed with the ion exchange resin in the chamber, the electrolytic solution and the power supply to both sides and terminal boards are installed inside, and a heater is installed on the upper side for electricity. An electrolysis tank installed to recover valuable metals in a solution by decomposition, and at one side of the first and second ion exchange resin chambers, an activated carbon filter and a micro filter are interposed on the supply pipe to collect the washing water from which the plating wastewater was washed. By providing a device for recovering valuable metals in plating wastewater using an ion exchange resin, characterized in that it comprises a collection tank.

In addition, the present invention is a plating wastewater supply step of supplying the plating wastewater to the first and second ion exchange resin chambers through a supply pipe installed with a filter through a supply pump to a lower side of the plating wastewater collecting tank into which the plating wastewater flows. , When the plating wastewater supplied to the first and second ion exchange resin chambers is supplied to the first and second ion exchange resin chambers, the first and second ion exchange resins are opened and closed through opening and closing of solenoid valves installed in the first and second supply pipes. 2 After selectively supplied to the ion exchange resin chamber, a valuable metal adsorption step of adsorbing the valuable metal in the plating wastewater introduced through the basic anion exchange resin filled in the chamber by 60 to 80%, the first and second 2 In the chamber where the plating wastewater does not flow into the ion exchange resin chamber, the regeneration solution of the resin cleaning solution collection tank is supplied to the bottom of the chamber through a cleaning solution supply pipe through a pressure pump to backwash the anion exchange resin adsorbed with valuable metals for a certain period of time. Anion exchange resin backwashing step, the valuable metal anion solution backwashed in the chamber flows into the electrolyte tank filled with the electrolyte through the solution supply pipe on the upper side of the chamber, and the valuable metal in the solution is energized by the electrode terminal plates installed on both sides of the electrolyte. And a heater is installed in the electrolytic tank to heat the electrolyte to 30 to 70°C. The plating wastewater from which the valuable metal has been removed through the first and second ion exchange resin chambers is supplied through a supply pipe. By providing a method for recovering valuable metals in plating wastewater using an ion exchange resin comprising a washing water recovery step in which the washing water washed through the activated carbon filter and the microfilter is recovered to the washing water collecting tank.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic configuration diagram of a valuable metal recovery device for explaining a method for recovering valuable metals in plating wastewater using ion exchange fibers according to the present invention, and FIG. 2 is a schematic diagram showing the internal structures of the first and second ion exchange fiber chambers. As a diagram shown, a supply pump 40 is installed at one lower side of the plating wastewater collection tank 10 so that the plating wastewater 20 flows into the inside of the plating wastewater collection tank 10 and is transferred through the supply pipe 30, and one side Water level control sensors (L1 and L2) are installed on the wall, respectively.

In addition, the first and second cylindrical fiber support portions 200 are installed so that the ion exchange fibers 80 composed of strongly acidic cationic fibers are filled in the plating water collecting tank 10 and the supply pipe 30. 2 The ion exchange fiber chambers 50 and 60 are provided with the fibers of the first and second ion exchange fiber chambers 50 and 60 through the first and second supply pipes 31 and 32 extending upward. Solenoid valves 70 are respectively installed in the first and second supply pipes 31 and 32 in which the fiber support part 200 is installed so that plating wastewater is selectively supplied to any one of the support parts 200, and the first And the second ion exchange fiber chambers 50 and 60 are provided with a fiber cleaning solution collecting tank 100 installed on one side thereof through a solution supply pipe 90 to form the first and second ion exchange as a pressure pump 110. Any one of the fiber chambers 50 and 60 is selectively installed to be backwashed, and at this time, the fiber support part 200 installed inside the first and second ion exchange fiber chambers 50 and 60 is a cleaning solution at the center thereof. The supply pipe 210 is vertically installed, and the cleaning liquid is installed to backwash the ion exchange fiber 80 through the spray nozzle of the cleaning liquid supply pipe 210.

Subsequently, a solution supply pipe 90 is provided on the upper side of the first and second ion exchange fiber chambers 50 and 60 to supply the valuable metal anion solution with backwashed ion exchange fiber 80 to the electrolysis tank 120. A power source 140 and a raised electrode terminal plate 150, 150' are provided on both sides of the electrolytic tank 120, which is erected and filled with the electrolyte 130, and installed to recover valuable metals, and the electrolytic tank 120 ) A heater 160 is installed on the upper side.

In addition, the first and second ion exchange fiber chambers 50 and 60 are cationic with a cylindrical fiber support 200 installed so that the ion exchange fiber 80 is also filled therein through the supply pipe 30 An exchange fiber chamber 170 is provided, and a washing water collecting tank 190 through which washing water is collected through an activated carbon filter 180 and a micro filter 180 ′ is provided at one side of the cation exchange fiber chamber 170. ).

An embodiment of the present invention configured as described above will be described as follows.

Plating wastewater 20 containing valuable metals such as silver or gold generated in the process of washing the plated area on the surface during the manufacture of semiconductors and semiconductor parts or printed circuit boards will flow into the interior of the plating wastewater collecting tank 10. In this case, the plating wastewater 20 is transferred through the supply pipe 30 by the operation of the supply pump 40 installed below the plating wastewater collecting tank 10, and fine particles, etc. are removed from the filter in the middle, It is supplied to the first and second ion exchange fiber chambers 50 and 60.

The plating wastewater 20 supplied to the first and second ion exchange fiber chambers 50 and 60 is a solenoid installed in the first and second supply pipes 31 and 32 extending from the supply pipe 30 By the opening and closing action of the valve 70, the plating wastewater 20 is selectively supplied into the first and second ion exchange fiber chambers 50 and 60.

At this time, a cylindrical fiber support 200 is installed inside the first and second ion exchange fiber chambers 50 and 60 so that the ion exchange fiber 80 is filled as shown in FIG. After the plating wastewater flows into the fiber support part 200, valuable metals in the plating wastewater flowing through the strongly acidic cation exchange fiber 80 are collected.

At this time, in the chambers of the first and second ion exchange fiber chambers 50 and 60 in which no plating wastewater is introduced, the cleaning solution of the fiber cleaning solution collecting tank 100 is operated by the solution supply pipe 90 ) Is introduced from the lower portion of the cleaning solution supply pipe 210 installed in the center of the fiber support part 200 of the chamber, and the ion exchange fiber 80 to which the valuable metal is adsorbed through the spray nozzle is backwashed for a certain period of time.

As the anion exchange fiber 80, an ion exchange fiber as shown in Table 1 may be selected.

(Basic characteristics of fiber) Ion Exchange Fiber 1 Ion Exchange Fiber 2 Ion exchange fiber
3 Characteristic Strongly acidic cationic fiber Iminodiacetate chelating ion exchange fiber Matrix Polypropylene Styren-Divinylbenzene copolymer Polyacrylic Polyacrylic Functional Group -SO ₃ -N(CH ₂ COOH) ₂ -N + R ₃ Filament Diameter 30~55㎛ 20~30㎛ 25~40㎛

As described above, the anion exchange fiber 80 is filled inside the fiber support part 200 of the first and second ion exchange fiber chambers 50 and 60 to collect valuable metals that are charged in the wastewater for plating and washing. When the inside of the fiber support part 200 is saturated to match the negative ion substitution capacity of the ion exchange fiber 80, the plating wastewater 20 is introduced into the other chamber by the action of a sensor (not shown). , The anion exchange fiber 80 in the chamber in which the valuable metal ions are collected is introduced through the cleaning solution supply pipe 210 installed in the center of the fiber support 200 by the cleaning solution of the fiber cleaning solution collecting tank 100 After backwashing the ion exchange fiber 80 through (not shown), it is introduced into the electrolyte tank 120 filled with the electrolyte through the solution supply pipe 90 on the upper side of the chamber.

The electrolyte tank 120 is capable of recovering the valuable metals in the valuable metal ion solution introduced by energization of the +-electrode terminal plates 150 and 150 ′ installed on both sides by electrolysis, and at this time, the electrolyte solution A heater 160 is installed in the tank 120 to heat the electrolyte to 30 to 70°C, and when the heating temperature through the heater 160 is 30°C or less and 70°C or more, smooth electrolysis becomes difficult.

Subsequently, the wastewater from which the valuable metal has been removed through the first and second ion exchange fiber chambers 50 and 60 is completely impurities in the activated carbon filter 180 and the micro filter 180 ′ through the supply pipe 30. After being removed and reduced to washing water, it is recovered to the washing water collecting tank 190 and can be reused as washing water in the plating process.

At this time, the wastewater from which the valuable metals are removed through the first and second ion exchange fiber chambers 50 and 60 is introduced into the cation exchange fiber chamber 170 and then a trace amount of valuable metals remaining in the wastewater is removed. It is also possible to remove with the ion exchange fiber 80 of the fiber support portion 200.

On the other hand, Figure 3 is a schematic configuration diagram of a valuable metal recovery device for explaining a method for recovering valuable metals in plating wastewater using an ion exchange resin according to another embodiment of the present invention, the above-described embodiment and the plating wastewater collection tank 10 ) And the first and second ion exchange fiber chambers 50 and 60 and the first and second ion exchange fiber chambers 50 and 60, which are extended to the supply pipe 30, selectively plating wastewater The solenoid valve 70 installed in the first and second supply pipes 31 and 32 to be supplied, and the cleaning solution supply pipe 90 to backwash the first and second ion exchange fiber chambers 50 and 60 The configuration of the cleaning liquid collecting tank 100 and the electrolytic tank 120 for recovering the washed valuable metal cleaning solution are the same.

However, after the first and second ion exchange fiber chambers 50 and 60 are configured as ion exchange resin chambers 50 ′ and 60 ′, therein, fibers composed of double pipes as in the above embodiment The fiber support part 200 and the three installed in the center of the fiber support part 200

Without the need for the semen supply pipe 210, valuable metals in the plating wastewater introduced through the basic anion exchange resin 80' filled in the chamber by 60 to 80% can be easily collected.

At this time, as the anion exchange resin 80 ′ to be filled in the chamber, a basic anion resin may be selected as shown in Table 2 below.

(Basic properties of resin) Resin type Resin 1 Suzy 2 Characteristic Basic anion Weakly basic anion Matrix Styrene divinylbenzene copolymer Crosslinked acrylic gelstructure Functional Group -N ₃ (CH ₃ ) ₃ Tertiary amines Particle size effective size

400㎛

400㎛

360㎛ mean diameter 620-770㎛ 550-750㎛

The anion exchange resin (80') as described above is filled with 60 to 80% inside the first and second ion exchange resin chambers (50') (60') to remove valuable metals having a negative charge in the wastewater for plating cleaning. When the chamber is saturated with the anion substitution capacity of the anion exchange resin 80', the plating wastewater 20 flows into the other chamber by the action of a sensor (not shown), and The anion exchange resin (80') in the chamber in which the metal anions are collected is backwashed from the bottom to the top by the cleaning solution of the resin cleaning solution collection tank (100), and flows into the electrolysis tank (120), which is the same as in the above embodiment. This is how valuable metals are recovered.

In particular, after supplying silver-plated (Ag) wastewater into the first and second ion exchange resin chambers 50' and 60' and collecting it with an anion exchange resin, the anion exchange resin is backwashed with a regeneration solution. After that, the recovery amount of the valuable metal (Ag) was tested by electrolysis of the electrolyte tank, and the results are shown in Table 3 below.

Washing water
Supply speed (L/h) Influent Ag concentration
ppm Inflow Ag amount, g Recovered Ag amount, g Recovery rate,% 30 205 1.025 0.925 90.2 45 202 1.515 1.383 91.3 60 200 2.000 1.810 90.5 80 201 2.680 2.385 89.0

10 Plating wastewater collection tank 20 Plating wastewater
30 Supply pipe 31,31 1st and 2nd supply pipe
40 Supply pump 50,60 1st and 2nd ion exchange fiber chamber
70 Solenoid valve 80 Ion exchange fiber
90 solution supply pipe
100 Fiber recycling solution collection tank 110 Pressurizing pump
120 Electrolyte tank 130 Electrolyte
140 power 150,150' electrode terminal board
160 heater 170 cation exchange fiber chamber
180 activated carbon filter 180' micro filter
190 Washing water collecting tank 200 Fiber support
210 washing liquid supply pipe
L1, L2 level control sensor

Claims (5)

A supply pump is installed on one side of the lower part so that the plating wastewater flows into the interior and is transferred through the supply pipe, and the plating wastewater collecting tank is installed with a water level control sensor on the wall of one side, and the plating wastewater collecting tank and the supply pipe are erected. A cylindrical fiber support part filled with ion exchange fibers is installed, and a cleaning liquid supply pipe provided with a spray nozzle to spray the cleaning liquid for cleaning the ion exchange fibers is vertically installed in the center of the fiber support part, and is connected to the plating wastewater collection tank. First and second ion exchange fiber chambers installed in the supply pipe to selectively supply plating wastewater to the chamber by installing solenoid valves in the first and second supply pipes to adsorb valuable metal anions of plating wastewater with ion exchange fibers, A pressure pump installed on one side of the bottom by being extended from the first and second ion exchange fiber chambers, wherein a fiber cleaning solution collecting tank is filled with a fiber cleaning solution to selectively backwash the ion exchange fibers in the cylindrical fiber support part , The solution supply pipe is erected to supply the valuable metal anion solution obtained by backwashing the ion exchange fiber in the chamber, and the electrolytic solution and the electrode terminal plate elongated to both sides are installed, and a heater is installed on the upper side by electrolysis. An electrolytic tank installed to recover valuable metals in the cleaning solution, and a supply pipe connected to the first and second ion exchange fiber chambers include a washing water collecting tank installed to collect the washed water through an activated carbon filter and a micro filter. Valuable metal recovery device in plating wastewater using ion-exchange fibers, characterized in that the configuration.
The method of claim 1, wherein the first and second ion exchange fiber chambers 50 and 60 have a double tube fiber support part 200 installed therein through a supply pipe 30 at one side, and an ion exchange fiber ( A valuable metal recovery device in plating wastewater using an ion exchange fiber, characterized in that a cation exchange fiber chamber 170 is installed in which 80) is filled. Plating wastewater supply step of selectively supplying the plating wastewater to the first and second ion exchange fiber chambers through a supply pipe in which a filter is installed through a supply pump to a lower side of the plating wastewater collecting tank into which the plating wastewater flows, the second Plating wastewater supplied to the first and second ion exchange fiber chambers can be selectively introduced into the first and second ion exchange fiber chambers by an opening/closing action of a solenoid valve installed in the connection pipe. And the ion exchange fiber embedded in the cylindrical fiber support part inside the second ion exchange fiber chamber, while plating wastewater passes through, the valuable metal anions are collected in the fiber, and the wastewater from which the valuable metal anions are removed is passed through the supply pipe at the lower side. Transferred valuable metal ion collection step, in the chamber in which plating wastewater does not flow in the first and second ion exchange fiber chambers, the cleaning solution of the fiber cleaning solution collection tank is passed through a pressure pump through a solution supply pipe in a cylindrical shape in the chamber. Is supplied to the fiber support of the fiber, and is sprayed through a cleaning liquid supply pipe formed in the center of the fiber support to backwash the ion exchange fibers collected with valuable metals for a certain period of time, and ions from the fiber support in the chamber The valuable metal anion solution, which has been backwashed with the exchange fiber, flows into the electrolyte tank filled with the electrolyte through the solution supply pipe on the upper side of the chamber. Valuable metal recovery step to recover, the wastewater from which the valuable metal has been removed through the first and second ion exchange fiber chambers is reduced to washing water through an activated carbon filter and a micro filter of a supply pipe extending to one side of the chamber, and then is cleaned. Plating using ion-exchange fibers including the step of recovering the washing water recovered to the water collecting tank A supply pump is installed on one side of the lower part so that the plating wastewater flows into the inside and is transferred through the supply pipe, and the plating wastewater collection tank with a water level control sensor installed on the wall of one side, and the plating wastewater collection tank and the supply pipe are addressed to fill the inside with ion exchange resin The first and second ion exchange resin chambers are provided with solenoid valves in each of the first and second supply pipes to selectively supply plating wastewater to the supply pipe to adsorb valuable metal anions of plating wastewater with ion exchange resin, A resin regeneration solution in which a resin regeneration solution is filled inside the first and second ion exchange resin chambers to selectively backwash the first and second ion exchange resin chambers as a pressure pump extended to the first and second ion exchange resin chambers and the solution supply pipe and installed on one side of the bottom. The collection tank and the chamber are erected with a solution supply pipe to supply a valuable metal solution with ion exchange resin backwashed, and an electrolytic solution and a power supply and a terminal board are installed inside the chamber, and a heater is installed on the upper side of the solution. An electrolytic tank installed to recover valuable metals, and a washing water collecting tank installed at one side of the first and second ion exchange resin chambers to collect washing water from which plating wastewater is washed through an activated carbon filter and a micro filter on a supply pipe. Valuable metal recovery device in the plating wastewater using an ion exchange resin, characterized in that the structure. Plating wastewater supply step of supplying the plating wastewater to the first and second ion exchange resin chambers through a supply pipe in which a filter is installed through a supply pump to a lower side of the plating wastewater collecting tank into which the plating wastewater flows into, the first and When plating wastewater supplied to the second ion exchange resin chamber is supplied to the first and second ion exchange resin chambers, the first and second ion exchange resin chambers are opened and closed by opening and closing solenoid valves installed in the first and second supply pipes. After selectively supplied to the chamber, a valuable metal adsorption step of adsorbing the valuable metals in the plating wastewater introduced through a basic anion exchange resin filled in the chamber by 60 to 80%, the first and second ion exchange resins Anion exchange resin in which the regeneration solution of the resin cleaning solution collection tank is supplied to the bottom of the chamber through a cleaning solution supply pipe through a pressure pump to the chamber where plating wastewater does not flow into the chamber to backwash the anion exchange resin adsorbed with valuable metals for a certain period of time. In the backwashing step, the valuable metal anion solution backwashed in the chamber is introduced into the electrolyte tank filled with the electrolyte through the solution supply pipe on the upper side of the chamber, and the valuable metal in the solution is recovered by energizing the electrode terminal plates installed on both sides of the electrolyte. , A valuable metal recovery step in which a heater is installed in the electrolytic tank to heat the electrolyte to 30 to 70°C;
The plating wastewater from which the valuable metals have been removed through the first and second ion exchange resin chambers is collected through an activated carbon filter and a microfilter through a supply pipe to a washing water collecting tank. A method of recovering valuable metals in plating wastewater using resin.

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