KR100457633B1 - Method and Apparatus for extraction of Precious metals from Plating Wastewater - Google Patents

Abstract

The present invention relates to an ion exchange fiber and a method and apparatus for recovering valuable metals in a plating wastewater using an electrolytic device.

In particular, it selectively supplies the plating wastewater to the first and second ion exchange fiber chambers through a supply pump installed to the lower side of the plating wastewater collection tank into which the plating wastewater flows, and the fibers of the first and second ion exchange fiber chambers. The plating wastewater supplied to the support is selectively supplied to the cylindrical fiber support through opening and closing of the solenoid valve installed in the supply pipe, and then collects valuable metals in the plating wastewater introduced through the ion exchange fiber, and the plating wastewater flows in. In the non-chambered chamber, the cleaning solution of the fiber cleaning solution collection tank is supplied to the cleaning solution supply pipe at the center of the fiber support part to backwash the ion exchange fibers, and the backwashed valuable metal anion solution is introduced into the electrolyte tank, and the valuable metal in the solution is removed by electrolysis. Waste water from which valuable metals are removed through the chamber is recovered through a supply pipe. Burrow flows would be to completely remove the trace amounts of valuable metals recovered in the washing water through an activated carbon filter and micro-filter water tank.

Description

Method and Apparatus for Recovering Valuable Metals in Plating Wastewater Using Ion Exchange Resin and Ion Exchange Fiber {Method and Apparatus for extraction of Precious metals from Plating Wastewater}

The present invention easily recovers the valuable metal in the plating wastewater by using an ion exchange resin or ion exchange fiber in which the valuable metal in the plating wastewater is collected, and an electrolytic device into which the cleaning solution obtained by backwashing the ion exchange resin and the fiber is introduced. The present invention relates to a method and apparatus for recovering valuable metals, which include first and second ion exchanges, in which plating wastewater flowing into a plating wastewater collection tank is installed with ion exchange resins or fiber support portions therein through a supply pipe. Valuable metal ions are collected by selectively passing through the chamber, and ion exchange resins or fibers in the first and second ion exchange chambers are backwashed through the cleaning liquid and supplied to the electrolytic cell, and then introduced into the electrolytic cell together with the washing water. By recovering the valuable metal ions by electrolysis, it is possible to recover the valuable metal in the plating wastewater easily and easily. , And for recycling the plating wastewater, yiettara relates to a valuable metals recovery method and apparatus of plating wastewater by the ion exchange resin and ion exchange fiber to contribute to cost reduction, while preventing environmental contamination and to.

In general, in the process of performing a plating on a substrate during the manufacture of a semiconductor and a semiconductor component or a printed circuit board, after the plating operation is performed, the surface of the plating is washed with nonionic water, which occurs during the washing of the plating portion. Whereas the plating metal is present in the plating wastewater to be discharged, most of the plating wastewater is discharged after the wastewater treatment without undergoing a proper recovery process.

That is, conventional methods for treating wastewater containing heavy metals include methods using reverse osmosis membranes and evaporation concentration methods. However, these methods have a high initial investment cost and excessive operating costs compared to chemical treatments. Is there.

In the method of treating the wastewater containing heavy metals by using the reverse osmosis membrane, the heavy metal wastewater is treated in parallel with other wastewater treatments, and the operation of the wastewater is relatively less affected by the characteristics of the wastewater and the automation of operation is possible. And, there is an advantage that the amount of sludge generated is small, but before and after treatment process and secondary concentration, drying facility is required, there is a problem that even the effective component in the cleaning solution is removed and the replacement of consumables such as microfilters is frequent.

In addition, in the case of the method for treating heavy metal-containing wastewater by the evaporation and concentration of the water, a separate heater for evaporation of the wastewater is required, resulting in excessive facility costs, particularly high energy costs and inefficient There is a disadvantage.

In particular, when manufacturing the lead frame, the plating wastewater generated in the cleaning process of the lead frame contains about 50 ppm or more of silver, but because it is processed without a separate recovery process, the recovery rate of the high-purity valuable metal is very low. There were many problems.

The present invention has been made in order to improve the conventional problems as described above, its purpose is to fundamentally block soil pollution and water pollution due to the metal contained in the plating waste water generated in the plating process, etc., Ion that can easily recover valuable metals contained in the plating wastewater and reuse them, thereby increasing the efficiency of resources and recycling the plating wastewater into washing water, thereby saving resources and preventing the generation of wastewater. The present invention provides 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, by selectively installing the ion exchange resin and ion exchange fibers in the chamber for collecting the valuable metal of the plating waste water to increase the collection rate of the valuable metal, thereby further reducing the recycling efficiency of the valuable metal The present invention provides a method and apparatus for recovering valuable metals in plating wastewater using ion exchange resins and ion exchange fibers.

1 is a schematic configuration diagram of a valuable metal recovery device for explaining the valuable metal recovery method in the plating wastewater using the ion exchange resin and ion exchange fiber according to the present invention.

2 is a view showing the internal structure of the first and second ion exchange fiber chamber of the present invention.

Figure 3 is a schematic configuration diagram of a valuable metal recovery device for explaining a valuable metal recovery method in the plating waste water using an ion exchange resin according to another embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

10 ... plating waste water collection tank 20 ... plating waste water

30.Supply line 31,31 ... 1st and 2nd supply line

40 ... supply pump 50,60 ... first and second ion exchange fiber chamber

70 Solenoid valve 80 Ion exchange fiber

90.Solution supply pipe

100.Textile recycling solution sump 110.Pressure pump

120 Electrolytic tank 130 Electrolyte

140 Power 150,150 'electrode terminals

160 ... heater 170 ... Cation Exchange Fiber Chamber

180 ... Activated Carbon Filter 180 '... Micro Filter

190 ... Wash water catcher 200 ... Fiber support

210.Cleaning supply pipe

L1, L2 ... level control sensor

As a technical means for achieving the above object, the present invention, the plating wastewater is introduced into the supply pump is installed on the lower side to be transported through the supply pipe, the plating wastewater collection tank is installed on one side wall level control sensor;

Cylindrical fiber support part is installed to the plating water collection tank and supply pipe and is filled with ion exchange fiber composed of strongly acidic cationic fiber, and a spray nozzle for spraying a cleaning liquid for cleaning the ion exchange fiber in the center of the fiber support part. The provided cleaning liquid supply pipe is vertically installed, and a supply pipe connected to the plating wastewater collection tank is selectively provided with solenoid valves in the first and second supply pipes so as to supply plating wastewater to the chamber, thereby ion-exchanging valuable metal anions of the plating wastewater. First and second ion exchange fiber chambers installed to adsorb fibers;

A pressure cleaning pump installed on one side of the bottom of the first and second ion exchange fiber chambers, wherein the fiber cleaning solution is filled in the fiber cleaning solution to selectively backwash the ion exchange fibers in the cylindrical fiber support. ;

The solution supply pipe is delivered to supply the valuable metal anion solution backwashed with ion exchange fibers in the chamber, and an electrode terminal plate is installed inside the electrolyte and the power supply to both sides, and a heater is installed at the upper side to be cleaned by electrolysis. An electrolytic tank installed to recover valuable metals in the solution; And

Plating wastewater using ion exchange fibers, characterized in that the supply pipe connected to the first and second ion exchange fiber chamber comprises a washing water collecting tank is installed to collect the cleaning water washed through an activated carbon filter and a micro filter By providing a valuable metal recovery device in China.

In addition, the present invention is a plating wastewater for selectively supplying the plating wastewater to the first and second ion exchange fiber chamber through a supply pipe provided with a filter through a supply pump to the lower side of the plating wastewater collection tank into which the plating wastewater flows into the interior of the present invention. Feeding step;

The plating wastewater supplied to the first and second ion exchange fiber chambers may 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 connecting pipe. Valuable metal anions are collected on the fiber while plating wastewater passes through ion exchange fibers embedded in the cylindrical fiber support portions inside the first and second ion exchange fiber chambers, and the wastewater from which the valuable metal anions are removed is supplied to the lower side of the supply pipe. Valuable metal ion capture step is transported through;

In the chambers in which the 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 supplied to the cylindrical fiber support in the chamber through the solution supply pipe via a pressure pump. An ion exchange fiber backwashing step which is sprayed through a cleaning solution supply pipe formed at the center of the fiber support to backwash the ion exchange fiber in which the valuable metal is collected for a predetermined time;

The valuable metal anion solution in which the ion exchange fibers are back-washed from the fiber support in the chamber is introduced into the electrolyte tank in which the electrolyte is filled through the solution supply pipe on the upper side of the chamber, and the electrode terminal plate is installed on both sides of the electrolyte filled in the electrolyte tank. By recovering the valuable metal in the solution by, a heater is installed in the electrolytic tank is a valuable metal recovery step of heating the electrolyte to 30 ~ 70 ℃;

Wastewater from which valuable metals are removed through the first and second ion exchange fiber chambers is reduced to the washing water through the activated carbon filter and the micro filter of the supply pipe delivered to one side of the chamber, and then the washing water is recovered to the washing water collection tank. By providing a method for recovering valuable metals in the plating wastewater using an ion exchange fiber comprising a.

In addition, the present invention is the plating wastewater flows into the inside is provided with a supply pump is installed on the lower side to be transported through the supply pipe, one side wall plating wastewater collection tank is installed water level control sensor;

The ion exchange resin is filled into the plating wastewater collection tank and the supply pipe, and a solenoid valve is installed in the first and second supply pipes to selectively supply the plating wastewater to the supply pipe, thereby ion exchange the valuable metal anions of the plating wastewater. First and second ion exchange resin chambers installed to be adsorbed by resin;

A resin regeneration solution in which a resin regeneration solution is filled into the first and second ion exchange resin chambers and a solution supply pipe and installed at one side of the bottom of the first and second ion exchange resin chambers. Sump tank;

Valuable metal solution backed by ion exchange resin in the chamber is delivered to the solution supply pipe so as to supply the electrolyte, inside the terminal plate is installed with the electrolyte and the power supply to both sides, the heater is installed on the upper side of the valuable metal in the solution by electrolysis Electrolytic tank is installed to recover the; And

One side of the first and second ion exchange resin chambers; a washing water collection tank in which the plating waste water is washed to collect water through an activated carbon filter and a micro filter on a supply pipe; By providing a valuable metal recovery device in the used plating waste water.

The present invention also provides a plating wastewater supplying step of supplying the plating wastewater to the first and second ion exchange resin chambers through a supply pipe provided with a filter through a supply pump to a lower side of the plating wastewater collecting tank into which plating wastewater is introduced. ;

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 through the opening and closing of the solenoid valves installed in the first and second supply pipes. A valuable metal adsorption step of selectively supplying an ion exchange resin chamber to adsorb valuable metals in the plating wastewater introduced through the basic anion exchange resin, which is 60 to 80% filled in the chamber;

Regeneration solution of the resin washing solution collection tank is supplied to the lower portion of the chamber through the washing liquid supply pipe through the pressure pump to the chamber in which the plating wastewater does not flow in the first and second ion exchange resin chambers. Anion exchange resin backwashing step to backwash a predetermined time;

The valuable metal anion solution backwashed in the chamber flows into the electrolyte tank in which the electrolyte is filled through the solution supply pipe on the upper side of the chamber, and recovers the valuable metal in the solution by energizing the electrode terminal plates installed at both sides of the electrolyte. Heater is installed in the tank to recover valuable metals to heat the electrolyte to 30 ~ 70 ℃;

Plating waste water from which valuable metals are removed through the first and second ion exchange resin chambers is a washing water recovery step of washing water washed through an activated carbon filter and a micro filter through a supply pipe to a washing water collection tank. The present invention provides a method for recovering valuable metals in plating wastewater using resin.

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 the valuable metal recovery method in the plating wastewater using the ion exchange fiber according to the present invention, Figure 2 is a view showing the internal structure of the first and second ion exchange fiber chamber As shown in the drawing, the plating wastewater 20 is introduced into the plating wastewater collection tank 10 so that the supply pump 40 is installed at one lower side of the plating wastewater collection tank 10 so as to be transferred through the supply pipe 30. Water level control sensors (L1) (L2) are respectively installed on the wall.

In addition, the first and second cylindrical fiber support portion 200 is installed to be filled with the ion exchange fiber 80 composed of a strongly acidic cationic fiber inside the speaker to the plated water collection tank 10 and the supply pipe 30 therein 2 The ion exchange fiber chambers 50 and 60 are 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 as to selectively supply plating wastewater to any one of the support parts 200. And a second ion exchange fiber chamber (50) (60) is communicated with the fiber cleaning solution collection tank (100) installed to one side through the solution supply pipe (90), and the first and second ion exchanges as the pressure pump (110). Any one of the fiber chambers 50 and 60 is installed to be reversely reversed, wherein the first and second ion exchange fiber chambers 50 In the fiber support part 200 installed inside the 60, the cleaning liquid supply pipe 210 is vertically installed at the center thereof, and the cleaning liquid is installed to reverse the ion exchange fiber 80 through the injection nozzle of the cleaning liquid supply pipe 210. do.

Subsequently, above the first and second ion exchange fiber chambers 50 and 60, the solution supply pipe 90 supplies the valuable metal anion solution backed by the ion exchange fiber 80 to the electrolytic tank 120. On both sides of the electrolytic tank 120 to which the electrolyte is filled, the electrolyte 130 is provided with the power supply 140 and the electrode terminal plates 150 and 150 ', which are installed to recover valuable metals, and the electrolytic tank 120. The heater 160 is installed on the upper side.

In addition, the first and second ion exchange fiber chambers 50 and 60 have a cation in which a cylindrical fiber support part 200 is installed so as to fill the ion exchange fiber 80 therein through the supply pipe 30. The exchange fiber chamber 170 is spoken, and on one side of the cation exchange fiber chamber 170, a washing water collection tank 190 through which an activated carbon filter 180 and a micro filter 180 ′ are collected is supplied to the supply pipe 30. ) Through the composition that is addressed.

Referring to the embodiment of the present invention made of such a configuration as follows.

In the manufacture of semiconductors and semiconductor components or printed circuit boards, plating wastewater 20 containing valuable metals such as silver or gold generated in the process of washing the plated portion on the surface may flow into the plating wastewater collection 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 to one side of the plating wastewater collection tank 10, and then fine particles are removed from the intermediate filter. 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, the first and the second ion exchange fiber chamber (50) 60, the inner side as shown in Figure 2, the ion exchange fiber 80 is provided with a cylindrical fiber support 200 to fill the, After the plating wastewater flows into the fiber support 200, the valuable metal in the plating wastewater introduced through the strongly acidic cation exchange fiber 80 is collected.

At this time, in the chambers in which the plating wastewater does not flow in the first and second ion exchange fiber chambers 50 and 60, the cleaning solution of the fiber cleaning solution collection tank 100 is supplied to the solution supply pipe 90 by the operation of the pressure pump 110. It is introduced from the lower portion of the cleaning liquid supply pipe 210 is placed in the center of the fiber support 200 of the chamber through), the ion exchange fibers 80 adsorbed valuable metals through the injection nozzle is backwashed for a predetermined time.

The anion exchange fiber 80, ion exchange fibers as shown in Table 1 may be selected.

Table 1 (Basic Properties of Fibers)

Ion exchange fiber1 Ion Exchange Fibers2 Ion-Exchange Fibers3 Characteristic Strongly acidic cationic fiber Iminodiacetate chelating ion exchange fiber Matrix Polypropylene Styren-Divinylbenzene copolymer Polyacrylic Polyacrylic Functional Group -SO₃ -N (CH₂COOH) ₂ -N ⁺ R₃ Filament Diameter 30 ~ 55㎛ 20 ~ 30㎛ 25 ~ 40㎛

As described above, the anion exchange fiber 80 is filled in the fiber support 200 of the first and second ion exchange fiber chambers 50 and 60 to collect valuable metals charged with the charge of the wastewater for plating cleaning. When the saturation is made in accordance with the anion exchange capacity of the ion exchange fiber 80 inside the fiber support 200, the plating waste water 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 injected through the cleaning solution supply pipe 210 which is introduced into the center of the fiber support 200 by the cleaning solution of the fiber cleaning solution collection tank 100. After backwashing the ion exchange fiber 80 through (not shown), the electrolyte is introduced into the electrolyte tank 120 through which the electrolyte is filled through the solution supply pipe 90 above the chamber.

The electrolyte tank 120 is capable of recovering the valuable metal in the valuable metal ion solution introduced by the energization of the + − electrode terminal plates 150 and 150 ′ installed on both sides by electrolysis, wherein the electrolyte tank Heater 160 is installed in the 120 to heat the electrolyte to 30 ~ 70 ℃, the heating temperature through the heater 160 is less than 30 ℃ and more than 70 ℃ smooth electrolysis is difficult.

Subsequently, the wastewater from which valuable metals are removed through the first and second ion exchange fiber chambers 50 and 60 is completely free of impurities in the activated carbon filter 180 and the micro filter 180 'through the supply pipe 30. After being removed and reduced to the washing water, it is recovered to the washing water collecting tank 190 and can be reused as the washing water of 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 the trace amount of the valuable metals remaining in the waste water flows. The ion support fiber 80 of the fiber support 200 may be removed.

On the other hand, Figure 3 is a schematic configuration diagram of a valuable metal recovery device for explaining the valuable metal recovery method in the plating wastewater using the ion exchange resin according to another embodiment of the present invention, the embodiment and the plating wastewater collection tank (10) ) And the plating wastewater selectively to any one of 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 directed to the supply pipe 30. The cleaning liquid supply pipe (90) for backwashing the solenoid valve (70) and the first and second ion exchange fiber chambers (50) and (60) installed in the first and second supply pipes (31) and (32) to supply water. The configuration of the cleaning tank 100, the electrolytic tank 120 for recovering the washed valuable metal cleaning solution is the same.

However, after the first and second ion exchange fiber chambers 50 and 60 are constituted by ion exchange resin chambers 50 'and 60', the fibers are composed of double tubes therein as in the above embodiment. Plating introduced through the basic anion exchange resin 80'filled with 60 to 80% of the inside of the chamber without the need for the fiber support 200 and the cleaning solution supply pipe 210 to be inserted into the fiber support 200. Allows valuable metals in the waste water to be easily collected.

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

Table 2 (Basic Properties of Resin)

As described above, the anion exchange resin 80 'is filled with 60 to 80% of the first and second ion exchange resin chambers 50' and 60 ', and has valuable negative metals in the wastewater for plating cleaning. When it is possible to collect, and saturated in accordance with the anion exchange capacity of the anion exchange resin (80 ') in the chamber, the plating waste water 20 is introduced into the other chamber by the action of a sensor (not shown), oil price The anion exchange resin 80 'in the chamber in which the metal anions are collected is backwashed from the lower side to the upper side by the washing liquid of the resin washing liquid collecting tank 100, and then introduced into the electrolytic tank 120, and then the same method as in the above embodiment. Valuable metal is recovered.

In particular, silver plating (Ag) wastewater is supplied into the first and second ion exchange resin chambers 50 'and 60' and collected by an anion exchange resin, followed by a backwashing process of the anion exchange resin with a regeneration solution. The recovery of valuable metals (Ag) was tested by electrolysis of the electrolyte tank, and the results are shown in Table 3 below.

Table 3 (Recovery rate of Ag according to resin cleaning solution supply rate)

According to the method and apparatus for recovering valuable metals in the plating wastewater of the present invention as described above, it is possible to fundamentally block soil contamination and water pollution due to the metals contained in the plating wastewater generated in the plating process and the like. The valuable metals contained in the waste water can be easily recovered and reused to increase the efficiency of the resources and to recycle the plating waste water into the washing water, thereby saving the resources and preventing the generation of waste water. have.

While the invention has been shown and described with respect to specific embodiments thereof, it will be appreciated that various changes and modifications can be made in the art without departing from the spirit or scope of the invention as set forth in the following claims. Those of ordinary skill will want to know easily.

Claims (5)

Plating wastewater is introduced into the inside of the feed pump is installed on the lower side to be transported through the supply pipe, one side wall plating wastewater collection tank is installed water level control sensor; Cylindrical fiber support part is installed to the plating water collection tank and supply pipe and is filled with ion exchange fiber composed of strongly acidic cationic fiber, and a spray nozzle for spraying a cleaning liquid for cleaning the ion exchange fiber in the center of the fiber support part. The provided cleaning liquid supply pipe is vertically installed, and a supply pipe connected to the plating wastewater collection tank is selectively provided with solenoid valves in the first and second supply pipes so as to supply plating wastewater to the chamber, thereby ion-exchanging valuable metal anions of the plating wastewater. First and second ion exchange fiber chambers installed to adsorb fibers; A pressure cleaning pump installed on one side of the bottom of the first and second ion exchange fiber chambers, wherein the fiber cleaning solution is filled in the fiber cleaning solution to selectively backwash the ion exchange fibers in the cylindrical fiber support. ; The solution supply pipe is delivered to supply the valuable metal anion solution backwashed with ion exchange fibers in the chamber, and an electrode terminal plate is installed inside the electrolyte and the power supply to both sides, and a heater is installed at the upper side to be cleaned by electrolysis. An electrolytic tank installed to recover valuable metals in the solution; And In the supply pipe connected to the first and second ion exchange fiber chambers, a washing water collection tank in which the washing water collected through the activated carbon filter and the micro filter is collected to collect water. On one side of the first and second ion exchange fiber chambers 50 and 60, a double tube is provided with a fiber support part 200 therein through a supply pipe 30, and a cation in which the ion exchange fiber 80 is filled therein. Valuable metal recovery apparatus in the plating waste water using the ion exchange fibers, characterized in that the exchange fiber chamber 170 is installed. delete A plating wastewater supplying step of selectively supplying the plating wastewater to the first and second ion exchange fiber chambers through a supply pipe provided with a filter through a supply pump to a lower side of the plating wastewater collection tank into which plating wastewater is introduced; The plating wastewater supplied to the first and second ion exchange fiber chambers may 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 connecting pipe. Valuable metal anions are collected on the fiber while plating wastewater passes through ion exchange fibers embedded in the cylindrical fiber support portions inside the first and second ion exchange fiber chambers, and the wastewater from which the valuable metal anions are removed is supplied to the lower side of the supply pipe. Valuable metal ion capture step is transported through; In the chambers in which the 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 supplied to the cylindrical fiber support in the chamber through the solution supply pipe via a pressure pump. An ion exchange fiber backwashing step which is sprayed through a cleaning solution supply pipe formed at the center of the fiber support to backwash the ion exchange fiber in which the valuable metal is collected for a predetermined time; The valuable metal anion solution in which the ion exchange fibers are back-washed from the fiber support in the chamber is introduced into the electrolyte tank in which the electrolyte is filled through the solution supply pipe on the upper side of the chamber, and the electrode terminal plate is installed on both sides of the electrolyte filled in the electrolyte tank. Valuable metal recovery step for recovering the valuable metal in the solution by; Wastewater from which valuable metals are removed through the first and second ion exchange fiber chambers is reduced to the washing water through the activated carbon filter and the micro filter of the supply pipe delivered to one side of the chamber, and then the washing water is recovered to the washing water collection tank. A valuable metal recovery method in the plating wastewater using the ion exchange fiber comprising a. Plating wastewater is introduced into the inside of the feed pump is installed on the lower side to be transported through the supply pipe, one side wall plating wastewater collection tank is installed water level control sensor; The ion exchange resin is filled into the plating wastewater collection tank and the supply pipe, and a solenoid valve is installed in the first and second supply pipes to selectively supply the plating wastewater to the supply pipe, thereby ion exchange the valuable metal anions of the plating wastewater. First and second ion exchange resin chambers installed to be adsorbed by resin; A resin regeneration solution in which a resin regeneration solution is filled into the first and second ion exchange resin chambers and a solution supply pipe and installed at one side of the bottom of the first and second ion exchange resin chambers. Sump tank; Valuable metal solution backed by ion exchange resin in the chamber is delivered to the solution supply pipe so as to supply the electrolyte, inside the terminal plate is installed with the electrolyte and the power supply to both sides, the heater is installed on the upper side of the valuable metal in the solution by electrolysis Electrolytic tank is installed to recover the; And One side of the first and second ion exchange resin chambers; a washing water collection tank in which the plating waste water is washed to collect water through an activated carbon filter and a micro filter on a supply pipe; Valuable metal recovery device in the plating waste water used. A plating wastewater supplying step of supplying the plating wastewater to the first and second ion exchange resin chambers through a supply pipe provided with a filter through a supply pump to a lower side of the plating wastewater collecting tank into which 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 through the opening and closing of the solenoid valves installed in the first and second supply pipes. A valuable metal adsorption step of selectively supplying an ion exchange resin chamber to adsorb valuable metals in the plating wastewater introduced through the basic anion exchange resin, which is 60 to 80% filled in the chamber; Regeneration solution of the resin washing solution collection tank is supplied to the lower portion of the chamber through the washing liquid supply pipe through the pressure pump to the chamber in which the plating wastewater does not flow in the first and second ion exchange resin chambers. Anion exchange resin backwashing step to backwash a predetermined time; The valuable metal anion solution backwashed in the chamber flows into the electrolyte tank in which the electrolyte is filled through the solution supply pipe at the upper side of the chamber, and recovers the valuable metal in the solution by energizing the electrode terminal plates installed at both sides of the electrolyte. Heater is installed in the tank to recover valuable metals to heat the electrolyte to 30 ~ 70 ℃; Plating waste water from which valuable metals are removed through the first and second ion exchange resin chambers is a washing water recovery step of washing water washed through an activated carbon filter and a micro filter through a supply pipe to a washing water collection tank. Method for recovering valuable metals in plating wastewater using resin.