Resin adsorption device beneficial to reduction of copper concentration of effluent and improvement of copper enrichment concentration

Abstract

The utility model provides a resin adsorption device which is favorable for reducing the copper concentration of effluent and improving the copper enrichment concentration. According to the utility model, the first-stage resin tank is regenerated every time in the two resin tanks which are connected in series, so that the regeneration end point of the regeneration tank is improved, the regeneration period of the resin is prolonged, the adsorption capacity of the resin is fully utilized, the regeneration frequency of the resin is reduced, and the service life of the resin is prolonged. When a regeneration agent passes through the copper removal resin layer, copper adsorbed in the copper removal resin layer enters the regeneration agent, and the copper is effectively enriched in the regeneration waste liquid; the copper concentration in the resin regeneration waste liquid is improved, so that the current efficiency of a subsequent electrodeposition process is improved, the operation energy consumption of the electrodeposition process is reduced, the regeneration period is prolonged, the use amount of a regeneration agent is reduced, and the treatment scale of subsequent electrodeposition is also reduced; therefore, the one-time investment cost and the occupied area of the electrodeposition equipment are reduced while the regeneration agent is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of resin adsorption devices, in particular to a resin adsorption device which is beneficial to reducing the copper concentration of effluent and improving the copper enrichment concentration. Background Art

[0002] Heavy metal ions are a type of pollutant that is strictly controlled by the country. At the same time, metals such as gold, silver, copper, and tin have a high recycling value. Therefore, whether it is possible to effectively recycle heavy metals in wastewater while ensuring that heavy metals in drainage meet standards has become a hot research topic.

[0003] The first step in heavy metal recovery from wastewater is usually enrichment and concentration, and then the enriched liquid is used for electrolytic extraction of elemental metals. One of the important methods of enrichment is to regenerate the adsorption saturated resin to enrich the heavy metals in the regenerated waste liquid. Therefore, whether the concentration of heavy metals in the resin regeneration waste liquid can be increased plays a vital role in reducing the investment cost and operating cost of the electrolytic process.

[0004] The working adsorption capacity of the resin for copper is closely related to the controlled regeneration end point (i.e., the copper concentration in the effluent). For example, the saturated adsorption capacity of the resin for copper is 60g / L, and the amount of regeneration agent used is 3 times the volume of the resin. The saturated adsorption capacity refers to the mass of copper adsorbed on each liter of resin when the copper concentration of the resin-produced water is equal to the copper concentration of the resin-influent water. The saturated adsorption capacity is the maximum adsorption capacity, which is 60g / L. At this time, the resin is completely ineffective and no longer has the ability to adsorb copper. At this time, if the resin is regenerated with a regeneration agent of 3 times the volume of the resin, the copper concentration in the regenerated wastewater obtained reaches the highest, which is 60÷3=20g / L.

[0005] However, in order to make the copper concentration in the resin-generated water meet the discharge standard, it is assumed here that the discharge standard is 1mg / L. When the copper concentration in the resin-generated water is ≥1mg / L, the resin needs to be regenerated, the adsorption cycle of the resin is shortened, and the working adsorption capacity of the resin will drop from the saturated adsorption capacity to 30g / L. In this case, the adsorption capacity of the resin is not fully utilized until the regeneration. At this time, the resin is regenerated, and the copper concentration in the regenerated wastewater is reduced to 30÷

[0006] 3=10g / L.

[0007] Therefore, controlling the regeneration end point of the resin, raising the regeneration end point, and extending the regeneration cycle of the resin can make full use of the adsorption capacity of the resin, which is crucial to increasing the copper concentration of the resin regeneration waste liquid.

[0008] The existing resin adsorption copper removal technology commonly uses resin tanks in parallel or in series.

[0009] For the resin tank parallel process, only the copper concentration in the effluent can be controlled to meet the discharge standard, so the regeneration end point needs to be controlled at a copper concentration in the produced water below 1 mg / L. At this time, the regeneration cycle is shortened and the working adsorption capacity of the resin is greatly reduced, making it impossible to obtain regenerated waste liquid with a high copper concentration.

[0010] For the resin tank series process, when one of them is regenerating, the other needs to stop working, which shortens the resin working time and increases the resin consumption. On the other hand, in the conventional series process, after the first-stage resin tank is regenerated, the position relationship cannot be flexibly changed. It can only be used as the first stage and cannot be moved to the last stage to improve the water output compliance rate. At this time, the adsorption capacity of the resin tank originally used as the last stage has been partially consumed, and it cannot provide reliable guarantee for the water production to meet the standards.

[0011] For the resin adsorption process, if the regeneration end point of the resin is increased, the copper concentration of the resin water will inevitably exceed the standard; if the regeneration end point is lowered to ensure that the copper concentration of the resin water meets the standard, the resin working adsorption capacity will inevitably decrease, and it will be impossible to obtain the regeneration waste liquid with a high copper concentration, and thus the inlet concentration standard of the electrolytic deposition will not be met. Therefore, how to achieve the effect of copper discharge meeting the standard and copper concentration and enrichment at the same time through a simple resin adsorption process is a question worth exploring. Utility Model Content

[0012] The utility model aims to provide a resin adsorption device which can ensure that the produced water reaches the discharge standard and at the same time improve the copper concentration of the resin regeneration waste liquid.

[0013] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0014] A resin adsorption device that is beneficial to reducing the copper concentration of effluent and increasing the copper enrichment concentration, used for achieving the discharge of copper in produced water and effective copper enrichment, comprising a No. 1 resin tank and a No. 2 resin tank connected in series, wherein the No. 1 resin tank and the No. 2 resin tank are both filled with a copper removal resin layer; the No. 1 resin tank and the No. 2 resin tank are both provided with a water inlet, a water production port, a regeneration liquid inlet, and a regeneration liquid discharge port; wherein the water inlet and the water production port in the No. 1 resin tank are both in two groups; wastewater to be treated is fed through a water inlet pipe connected to a water inlet of the No. 1 resin tank and a water inlet of the No. 2 resin tank respectively by using a pipeline with a valve, and a switching valve 1 is provided on the water inlet pipe for switching the water inlet of the No. 1 resin tank or the No. 2 resin tank; another water inlet and a water production port of the No. 1 resin tank are connected to the water production port of the No. 2 resin tank respectively by using a pipeline with a valve A pipeline is connected to a water production pipe; wherein, a switching valve 2 is provided on the pipeline between a water production port of the No. 1 resin tank and a water production port of the No. 2 resin tank, for switching water production of the water production port of the No. 1 resin tank or the No. 2 resin tank; and the pipelines with valves corresponding to the water production ports of the No. 1 resin tank and the No. 2 resin tank are respectively connected to water production copper meters through branches; another water production port in the No. 1 resin tank is connected to the water inlet pipe connected to the switching valve 1 and the water inlet of the No. 2 resin tank through a pipeline with a valve; the regeneration agent is connected to the regeneration liquid inlets in the No. 1 resin tank and the No. 2 resin tank respectively through the regeneration agent pipeline by using the pipeline with a valve, and is connected to the regeneration waste liquid collection device through the regeneration liquid discharge ports in the No. 1 resin tank and the No. 2 resin tank by using the pipeline with a valve for discharge.

[0015] Preferably, the wastewater to be treated is connected to a water inlet on the No. 1 resin tank and a water inlet on the No. 2 resin tank through a water inlet branch pipe 1 and a water inlet branch pipe 2 respectively using a pipeline with a water inlet valve 1 and a pipeline with a No. 3 water inlet valve for water inlet; another water inlet of the No. 1 resin tank uses a pipeline with a water inlet valve 2, a water outlet of the No. 1 resin tank uses a pipeline with a water outlet valve 1, and a water outlet of the No. 2 resin tank uses a pipeline with a water outlet valve 3 to respectively connect to a water outlet pipe for water production; wherein, a switching valve 2 is provided on the pipeline of the water outlet valve 1 and the pipeline of the water outlet valve 3 for switching the water outlet of the No. 1 resin tank or the No. 2 resin tank to produce water; another water outlet in the No. 1 resin tank is connected to the pipeline between the switching valve 1 and the water inlet branch pipe 2 using a water inlet branch pipe 3 with a water outlet valve 2, so as to connect the No. 1 resin tank and the No. 2 resin tank in series.

[0016] Preferably, the regeneration agent is connected to the regeneration inlets in the No. 1 resin tank and the No. 2 resin tank through a regeneration agent pipeline using a pipeline with a No. 1 regeneration inlet valve and a pipeline with a No. 2 regeneration inlet valve respectively; and the regeneration drain ports in the No. 1 resin tank and the No. 2 resin tank are connected to the regeneration waste liquid collection device through a regeneration waste liquid recovery pipeline for drainage using a pipeline with a No. 1 regeneration drain valve and a pipeline with a No. 2 regeneration drain valve.

[0017] Preferably, the water production copper meter includes a No. 1 water production copper meter and a No. 2 water production copper meter, and the No. 1 water production copper meter and the No. 2 water production copper meter are respectively arranged on the pipelines with water production valves corresponding to the No. 1 resin tank and the No. 2 resin tank through branches, and are used to monitor the readings of water output copper during the resin adsorption process in the corresponding resin tanks.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] (1) The utility model selects to regenerate the primary resin tank each time among the two resin tanks connected in series, thereby increasing the regeneration end point of the regeneration tank, extending the regeneration cycle of the resin, making full use of the resin adsorption capacity, reducing the frequency of resin regeneration, and extending the service life of the resin.

[0020] (2) The utility model allows the copper adsorbed in the copper removal resin layer to enter the regeneration agent when the regeneration agent passes through the copper removal resin layer, so that the copper is effectively enriched in the regeneration waste liquid; the utility model increases the concentration of copper in the resin regeneration waste liquid, thereby improving the current efficiency of the subsequent electrolytic deposition process and reducing the operating energy consumption of the electrolytic deposition process.

[0021] (3) The utility model increases the copper concentration in the resin regeneration waste liquid, that is, prolongs the regeneration cycle and reduces the amount of regeneration agent used. From another perspective, it also reduces the scale of subsequent electrolytic processing, thereby saving regeneration agent waste liquid while also reducing the one-time investment cost and land occupation of the electrolytic equipment.

[0022] (4) The utility model conveniently switches the resin tank after regeneration to the secondary resin tank by switching two sets of switching valves, thereby providing a favorable guarantee for the copper in the produced water to meet the discharge standards.

[0023] In summary, the utility model can simultaneously achieve the two functions of meeting the discharge standards for copper produced water and effectively enriching copper by filling the copper removal resin layer in two resin tanks connected in series through the adsorption process of the copper removal resin layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of a resin adsorption device for reducing the copper concentration in effluent and increasing the copper enrichment concentration provided by an embodiment of the utility model

[0025] The serial numbers in the figure are as follows:

[0026] 1. Resin tank No. 1; 11. Water inlet valve No. 1; 12. Water inlet valve No. 2; 13. Regeneration inlet valve No. 1; 14. Regeneration drain valve No. 1; 15. Water production copper meter No. 1; 16. Water production valve No. 1; 17. Water production valve No. 2; 2. Resin tank No. 2; 21. Water inlet valve No. 3; 22. Water production valve No. 3; 23. Regeneration inlet valve No. 2; 24. Regeneration drain valve No. 2; 25. Water production copper meter No. 2; 3. Switching valve No. 1; 4. Switching valve No. 2; 5. Water inlet branch pipe No. 1; 6. Water inlet branch pipe No. 2; 7. Water inlet pipe No. 3; 8. Regeneration agent pipeline; 9. Water production pipe; 10. Regeneration waste liquid recovery pipeline. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] like Figure 1 As shown, a resin adsorption device disclosed in the utility model is beneficial to reducing the copper concentration of effluent and increasing the copper enrichment concentration, which is used to achieve the discharge of produced water copper and effective copper enrichment, including a No. 1 resin tank 1 and a No. 2 resin tank 2 connected in series, and the No. 1 resin tank 1 and the No. 2 resin tank 2 are filled with a copper removal resin layer.

[0029] A No. 1 water production copper meter 15 and a No. 2 water production copper meter 25 are respectively provided in the No. 1 resin tank 1 and the No. 2 resin tank 2. The No. 1 water production copper meter 15 and the No. 2 water production copper meter 25 are respectively set on the No. 1 resin tank 1 and the No. 2 resin tank 2 to monitor the readings of the water copper during the resin adsorption process in the corresponding resin tank.

[0030] There are two water inlets in the No. 1 resin tank 1, and the two water inlets are respectively equipped with a water inlet valve 11 and a water inlet valve 2 12; there are two water production ports, and the two water production ports are respectively equipped with a water production valve 16 and a water production valve 2 17; a regeneration liquid inlet, on which a No. 1 regeneration liquid inlet valve 13 is installed; a regeneration liquid discharge port, on which a regeneration liquid discharge valve 14 is installed; a No. 1 water production copper meter 15 is installed on the water production pipe of the No. 1 resin tank 1.

[0031] The No. 2 resin tank 2 is provided with a water inlet, on which is mounted a water inlet valve 3 21; a water production port, on which is mounted a water production valve 3 22; a regeneration liquid inlet, on which is mounted a No. 2 regeneration liquid inlet valve 23; a regeneration liquid discharge port, on which is mounted a No. 2 regeneration liquid discharge valve 24; and a No. 2 water production copper meter 25 is mounted on the water production pipe of the No. 2 resin tank 24.

[0032] The wastewater to be treated is divided into a water inlet branch pipe 1 5 and a water inlet branch pipe 2 6 through the water inlet main pipe, and is connected to a water inlet in the first resin tank 1 and a water inlet in the second resin tank 2 by using a water inlet valve 1 11 and a water inlet valve 3 21 respectively. A switching valve 1 3 is installed between the water inlet branch pipe 1 5 and the water inlet branch pipe 2 6 to switch the water inlet state of the two groups of resin tanks.

[0033] The first water outlet in the first resin tank 1 and the second water outlet in the second resin tank 2 are connected to the water outlet 9 through water outlet branches to produce water. A switching valve 2 4 is provided on the water outlet 9 between the water outlet branch of the first water outlet valve 16 and the water outlet branch of the third water outlet valve 22, which is used to switch the water outlet of the first resin tank 1 or the second resin tank 2 to produce water.

[0034] Another water inlet in the No. 1 resin tank 1 is connected to the water production pipe 9 through the water production branch pipe by using the water inlet valve No. 2 12. Another water production port of the No. 1 resin tank 1 is connected to the water inlet with the water inlet valve No. 3 21 in the No. 2 resin tank 2 through the No. 3 water inlet pipe 7 with the water production valve No. 2 17, so that the No. 1 resin tank 1 and the No. 2 resin tank 2 are connected in series.

[0035] The regeneration agent is divided into two regeneration agent branches through the regeneration agent pipeline 8 to connect the regeneration liquid inlets in the No. 1 resin tank 1 and the No. 2 resin tank 2, one of the regeneration agent branches is connected to the No. 1 regeneration liquid inlet through the No. 1 regeneration liquid inlet valve 13, and the other regeneration agent branch is connected to the No. 2 regeneration liquid inlet through the No. 2 regeneration liquid inlet valve 23.

[0036] The No. 1 regeneration liquid discharge port in the No. 1 resin tank 1 is connected to the regeneration waste liquid recovery pipeline 10 through the No. 1 regeneration liquid discharge valve 14 to collect the regeneration waste liquid.

[0037] The No. 2 regeneration drain port in the No. 2 resin tank 2 is connected to the regeneration waste liquid recovery branch pipeline through the No. 2 regeneration drain valve 24, and the regeneration waste liquid recovery branch pipeline is connected to the regeneration waste liquid recovery pipeline 10 to collect the regeneration waste liquid.

[0038] The No. 1 resin tank 1 and the No. 2 resin tank 2 are arranged in series. The difference from the common ion exchange resin treatment is that the positions of the No. 1 resin tank 1 and the No. 2 resin tank 2 of the device can be switched between the primary and secondary stages at will.

[0039] The primary resin tank is used as a regeneration tank to control the regeneration end point at a high value, thereby increasing the working adsorption capacity of the resin and subsequently increasing the copper concentration in the regenerated waste liquid; the secondary resin tank is used as a standard-reaching tank to control the effluent copper concentration to reach the discharge standard.

[0040] During the adsorption process, the readings of the copper meters of the water produced by the No. 1 resin tank 1 and the No. 2 resin tank 2 are monitored. Usually, the copper meter reading of the first-level resin tank is between the inlet copper concentration and the discharge standard. The copper meter reading of the water produced by the first-level resin tank is much larger than the copper meter reading of the water produced by the second-level resin tank.

[0041] While ensuring that the copper meter reading of the secondary resin tank meets the emission standards, try to increase the copper meter reading of the primary resin tank. When the copper meter reading of the primary resin tank is greater than the set value, regenerate the primary resin tank and use it as a secondary adsorption tank. Adjust the resin tank that was originally used as a secondary tank to a primary tank, and repeat this cycle. Because the regenerated resin has restored its adsorption capacity, adjusting it to the secondary tank can ensure that the effluent copper meets the emission standards.

[0042] The utility model runs a cycle including the following six processes:

[0043] Process 1:

[0044] Water flow direction: wastewater to be treated → adsorption in resin tank 1 → adsorption in resin tank 2 → discharge in compliance with standards

[0045] First, only open the water inlet valve 11, the water production valve 2 17, the water inlet valve 3 21, the water production valve 3 22 and the switching valve 2 4.

[0046] At this time, the No. 1 resin tank 1 is used as a primary adsorption tank, and the No. 2 resin tank 2 is used as a secondary adsorption tank.

[0047] The wastewater to be treated enters a water inlet from the water inlet valve 11 of the No. 1 resin tank 1, passes through the copper removal resin layer of the No. 1 resin tank 1 from top to bottom, and then flows through the water production valve 2 17 to the water inlet with the water inlet valve 3 21 on the No. 2 resin tank 2 to complete the first-level adsorption.

[0048] After entering the No. 2 resin tank 2, it passes through the copper removal resin layer of the No. 2 resin tank 2 from top to bottom, and then flows out through the water production valve 3 22 and the switching valve 2 4 on the water production port of the No. 2 resin tank 2 to the water production pipe 9. After completing the secondary adsorption, the effluent copper meets the discharge standards.

[0049] Process 2:

[0050] Water flow direction: wastewater to be treated → adsorption in resin tank 2 → discharge in compliance with standards

[0051] When the reading of the water output copper read by the No. 1 water production copper meter 15 in the No. 1 resin tank 1 reaches the set value of the regeneration end point of the first-level resin tank, first open the switching valve 13, and then close the water inlet valve 11 on the water inlet in the No. 1 resin tank 1 and the water production valve 2 17 on the water production outlet.

[0052] At this time, the wastewater to be treated enters the water inlet of the No. 2 resin tank 2 through the switching valve 1 3 and the water inlet valve 3 21 in turn, enters the copper removal resin layer of the No. 2 resin tank 2 from top to bottom, and then flows out through the water production valve 3 22 and the switching valve 2 4 on the water production port to the water production pipe 9, and the effluent copper meets the discharge standards.

[0053] Process 3: Regeneration of resin tank 1

[0054] Open the No. 1 regeneration drain valve 14 and the No. 1 regeneration inlet valve 13 in sequence.

[0055] The regeneration agent enters the No. 1 regeneration liquid inlet from the No. 1 regeneration liquid inlet valve 13, passes through the copper removal resin layer of the No. 1 resin tank 1 from bottom to top, is discharged from the No. 1 regeneration liquid discharge valve 14 on the regeneration liquid discharge port, and enters the regeneration waste liquid collection device through the regeneration waste liquid collection pipeline 10 for collection.

[0056] When the regeneration agent passes through the copper removal resin layer of the No. 1 resin tank 1, the copper adsorbed in the copper removal resin layer of the No. 1 resin tank 1 enters the regeneration agent, and the copper is effectively enriched in the regeneration waste liquid.

[0057] When the regeneration is finished, the No. 1 regeneration drain valve 14 and the No. 1 regeneration inlet valve 13 are closed.

[0058] Process 4:

[0059] Water flow direction: wastewater to be treated → adsorption in No. 2 resin tank 2 → adsorption in No. 1 resin tank 1 → discharge in compliance with standards

[0060] Open the water inlet valve 2 12 and the water production valve 1 16, and finally close the switching valve 2 4.

[0061] At this time, the No. 2 resin tank 2, which was originally a secondary resin tank, is switched to a primary resin tank and used as a regeneration tank; the No. 1 resin tank 1, which was originally a primary resin tank, is switched to a secondary resin tank and used as a standard-reaching tank.

[0062] The wastewater to be treated enters the water inlet of the No. 2 resin tank 2 through the switching valve 13 and the water inlet valve 3 21 in turn, enters the copper removal resin layer of the No. 2 resin tank 2 from top to bottom, and then flows out through the water production pipe 9 through the water production valve 3 22 of the No. 2 water production outlet, enters the No. 1 resin tank 1 through the water inlet valve 2 12, passes through the copper removal resin layer of the No. 1 resin tank 1 from top to bottom, and then flows out through the water production pipe 9 through the water production valve 16 of the No. 1 water production outlet, and is discharged in compliance with the discharge standards.

[0063] Process 5:

[0064] Water flow direction: wastewater to be treated → adsorption in resin tank 1 → discharge in compliance with standards

[0065] When the No. 2 water copper meter 25 of the No. 2 resin tank 2 reads the water copper reading that reaches the regeneration endpoint setting value of the first resin tank.

[0066] First open the water inlet valve 11, and then close the water inlet valve 12, the switching valve 3, the water inlet valve 3 21 and the water production valve 3 22.

[0067] At this time, the wastewater to be treated enters the No. 1 water inlet through the water inlet valve 11 and enters the copper removal resin layer of the No. 1 resin tank 1 from top to bottom, and then flows out from the water production valve 16 of the No. 1 water production port 2 through the water production pipe 9, and the effluent copper meets the discharge standards.

[0068] Process 6: Regeneration of Resin Tank 2

[0069] Open the No. 2 regeneration drain valve 24 and the No. 2 regeneration inlet valve 23 in sequence.

[0070] The regeneration agent enters the No. 2 regeneration liquid inlet from the No. 2 regeneration liquid inlet valve 23, passes through the copper removal resin layer of the No. 2 resin tank 2 from bottom to top, and is discharged from the No. 2 regeneration liquid discharge valve 24 at the No. 2 regeneration liquid discharge port, and enters the regeneration waste liquid pipeline 10 through the regeneration waste liquid branch pipeline to the regeneration waste liquid collection device.

[0071] When the regeneration agent passes through the copper removal resin layer of the No. 2 resin tank 2, the copper adsorbed in the copper removal resin layer of the No. 2 resin tank 2 enters the regeneration agent, and the copper is effectively enriched in the regeneration waste liquid.

[0072] When the regeneration is finished, close the No. 2 regeneration drain valve 24 and the No. 2 regeneration inlet valve 23.

[0073] Process 7:

[0074] Water flow direction: wastewater to be treated → adsorption in resin tank 1 → adsorption in resin tank 2 → discharge in compliance with standards

[0075] First open water production valve 2 17 , water inlet valve 3 21 , water production valve 3 22 and switching valve 2 4 , and then close water production valve 1 16 .

[0076] At this time, the No. 1 resin tank 1 is used as the primary adsorption tank, and the No. 2 resin tank 2 is used as the secondary adsorption tank. The device returns to the step 1 state.

[0077] The utility model fills copper removal resin layers in two resin tanks connected in series. The adsorption capacity of the copper removal resin layers and the special pipeline connection enable the device to achieve the two functions of standard discharge of copper produced water and effective copper enrichment.

[0078] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0079] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0080] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A resin adsorption device that is beneficial to reducing the copper concentration of effluent and increasing the copper enrichment concentration, used to achieve the discharge of copper in produced water and effective copper enrichment, characterized in that: It comprises a first resin tank (1) and a second resin tank (2) connected in series, wherein the first resin tank (1) and the second resin tank (2) are both filled with a copper removal resin layer; The first resin tank (1) and the second resin tank (2) are both provided with a water inlet, a water outlet, a regeneration liquid inlet, and a regeneration liquid outlet; wherein the water inlet and the water outlet in the first resin tank (1) are both provided in two groups; The wastewater to be treated is connected to a water inlet of the first resin tank (1) and a water inlet of the second resin tank (2) through a water inlet pipe respectively using a pipeline with a valve, and a switching valve (3) is provided on the water inlet pipe for switching the water inlet of the first resin tank (1) or the second resin tank (2); Another water inlet and a water outlet of the first resin tank (1) are connected to a water outlet of the second resin tank (2) by pipelines with valves through a water outlet pipe (9); wherein a switching valve 2 (4) is provided on the pipeline between the first water outlet of the first resin tank (1) and the water outlet of the second resin tank (2) for switching water outlet of the first resin tank (1) or the second resin tank (2); and the pipelines with valves corresponding to the water outlets of the first resin tank (1) and the second resin tank (2) are connected to water outlet copper meters through branch pipes; Another water outlet in the first resin tank (1) is connected to the water inlet of the second resin tank (2) through a pipeline with a valve, and a point is set on the water inlet pipe connecting the switching valve 1 (3) and the water inlet of the second resin tank (2); The regeneration agent is connected to the regeneration liquid inlet in the first resin tank (1) and the second resin tank (2) through a regeneration agent pipeline (8) using pipelines with valves, and is connected to the regeneration waste liquid collection device through pipelines with valves for discharge through the regeneration liquid discharge ports in the first resin tank (1) and the second resin tank (2).

2. A resin adsorption device for reducing effluent copper concentration and increasing copper enrichment concentration according to claim 1, characterized in that: The wastewater to be treated is connected to a water inlet on the first resin tank (1) and a water inlet on the second resin tank (2) through a first water inlet branch pipe (5) and a second water inlet branch pipe (6) respectively using a pipeline with a first water inlet valve (11) and a pipeline with a third water inlet valve (21) for water inlet; Another water inlet of the first resin tank (1) is connected to a water production pipe (9) using a pipeline with a second water inlet valve (12), a water production port of the first resin tank (1) is connected to a pipeline with a first water production valve (16), and a water production port of the second resin tank (2) is connected to a water production pipe (9) using a pipeline with a third water production valve (22) to produce water; Wherein, a switching valve 2 (4) is provided on the pipeline of the water production valve 1 (16) and the pipeline of the water production valve 3 (22) for switching the water production of the water production port of the first resin tank (1) or the second resin tank (2); Another water outlet in the first resin tank (1) is connected to the pipeline between the first switching valve (3) and the second water inlet branch pipe (6) by means of a third water inlet branch pipe (7) with a second water inlet valve (17), so as to connect the first resin tank (1) and the second resin tank (2) in series.

3. A resin adsorption device for reducing effluent copper concentration and increasing copper enrichment concentration according to claim 1, characterized in that: The regeneration agent is connected to the regeneration liquid inlet ports of the first resin tank (1) and the second resin tank (2) through the regeneration agent pipeline (8) using the pipeline with the first regeneration liquid inlet valve (13) and the pipeline with the second regeneration liquid inlet valve (23); and the regeneration liquid discharge ports of the first resin tank (1) and the second resin tank (2) are connected to the regeneration waste liquid collection device through the regeneration waste liquid recovery pipeline (10) for liquid discharge using the pipeline with the first regeneration liquid discharge valve (14) and the pipeline with the second regeneration liquid discharge valve (24).

4. A resin adsorption device for reducing effluent copper concentration and increasing copper enrichment concentration according to claim 1, characterized in that: The water production copper meter comprises a No. 1 water production copper meter (15) and a No. 2 water production copper meter (25). The No. 1 water production copper meter (15) and the No. 2 water production copper meter (25) are respectively arranged on pipelines with water production valves corresponding to the No. 1 resin tank (1) and the No. 2 resin tank (2) through branch pipes, and are used to monitor the readings of water output copper during the resin adsorption process in the corresponding resin tanks.

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