Waste liquid treatment device

Abstract

The utility model discloses a waste liquid treatment device and relates to the technical field of electroplating wastewater treatment. The waste liquid treatment device comprises a waste liquid tank, a resin device, an acid tank and an alkali tank. The waste liquid tank is used for accommodating waste liquid; the resin device is provided with a containing cavity, the containing cavity is filled with ion exchange resin, the waste liquid tank is connected with the resin device through a first pipeline, and when a first valve of the first pipeline is opened, waste liquid can flow into the containing cavity. The acid tank is used for containing an acid solution, the acid tank is connected with the resin device through a second pipeline, and when a second valve of the second pipeline is opened, the acid solution can flow into the containing cavity; the alkali tank is used for containing an alkali solution, the alkali tank is connected with the resin device through a third pipeline, and when a third valve of the third pipeline is opened, the alkali solution can flow into the containing cavity. By adopting the technology provided by the utility model, the treatment efficiency can be effectively improved, and the generation of solid wastes can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to electroplating wastewater treatment technical field, specifically to a kind of waste liquid treatment device. BACKGROUND

[0002] With the importance of environmental protection, there are higher requirements in sewage discharge, especially in electroplating process, due to different product requirements, various chemical reagents need to be added, making it more difficult to treat the generated electroplating wastewater.

[0003] Currently, the main electroplating wastewater treatment needs to be treated according to the different components of the wastewater. Among them, the traditional treatment process for nickel and copper wastewater is: adjusting pH-coagulation-flocculation-precipitation-filtration-pH readjustment-discharge. That is, the reaction conditions of each step need to control the specific pH range, reaction time of each process, stirring mode and other parameters, which need to be continuously adjusted until the optimal treatment condition is reached. Due to its low treatment efficiency, high cost, and easy secondary pollution, it is difficult to meet the current treatment needs of nickel and copper wastewater. SUMMARY

[0004] The utility model provides a kind of waste liquid treatment device to solve the problem of low treatment efficiency and high cost of nickel and copper wastewater in the prior art.

[0005] To solve the above technical problems, the utility model provides a kind of waste liquid treatment device, which comprises: a waste liquid tank, a resin device, an acid tank and an alkali tank.

[0006] The waste liquid tank is used to contain waste liquid; the resin device has a containing chamber, which is filled with ion exchange resin, wherein the waste liquid tank is connected to the resin device through a first pipeline, and when the first valve of the first pipeline is opened, the waste liquid can flow into the containing chamber.

[0007] The acid tank is used to contain acidic solution, wherein the acid tank is connected to the resin device through a second pipeline, and when the second valve of the second pipeline is opened, the acidic solution can flow into the containing chamber; the alkali tank is used to contain alkaline solution, wherein the alkali tank is connected to the resin device through a third pipeline, and when the third valve of the third pipeline is opened, the alkaline solution can flow into the containing chamber.

[0008] The technical scheme provided by the utility model has the beneficial effects compared with the prior art:

[0009] The waste liquid tank is connected with the resin device through a first pipeline, so that when the first valve is opened, the waste liquid tank is communicated with the resin device, the waste liquid in the waste liquid tank can flow into the resin device, and the ion exchange resin in the resin device can adsorb the ions in the waste liquid, thereby realizing the filtration of the waste liquid. According to different water quality, the corresponding ion exchange resin is used to adsorb the waste liquid. Thus, solid waste is effectively avoided, and the waste liquid after adsorption can be directly discharged after meeting the index requirements.

[0010] The acid tank is additionally connected with the resin device through a second pipeline, so that when the second valve is opened, the acidic solution can flow into the resin device to perform an acid washing operation on the ion exchange resin, thereby reacting with the ions adsorbed from the waste liquid by the ion exchange resin to recover the metal ions in the waste liquid, facilitating secondary recovery and reuse. Meanwhile, the resin ion can be reused, and has a long service life.

[0011] In addition, the alkali tank is additionally connected with the resin device through a third pipeline, so that when the third valve is opened, the alkaline solution can flow into the resin device to perform an activation and regeneration operation on the ion exchange resin, thereby improving the service life of the ion exchange resin.

[0012] In some embodiments, the waste liquid treatment device further comprises a water tank for containing pure water, the water tank being connected with the resin device through a fourth pipeline, and when a fourth valve of the fourth pipeline is opened, the pure water can flow into the containing space.

[0013] The above technical solution is adopted, the water tank is used for cleaning the resin device after the acidic solution flows through, and is used for cleaning the resin device after the alkaline solution flows through. The water tank is additionally connected with the resin device through a fourth pipeline, and when the fourth valve is opened, the pure water can flush the ion exchange resin in the resin device to clean the ion exchange resin and prolong the service life of the ion exchange resin.

[0014] In some embodiments, the waste liquid treatment device further comprises a pump body connected with the waste liquid tank, the acid tank and the alkali tank respectively, and used for conveying the waste liquid, the acidic solution and the alkaline solution to flow through the resin device.

[0015] The above technical solution is adopted, the pump body is provided to drive the flow of various liquids. Further, the pump body is a diaphragm pump. The diaphragm pump has strong self-suction capacity, and can be adjusted according to the appropriate diaphragm material to resist chemical corrosion, and is suitable for conveying the above-mentioned acidic solution and alkaline solution and waste liquid.

[0016] In some embodiments, the waste liquid treatment device further comprises a buffer tank, wherein the acidic solution generates a metal solution after flowing through the resin device, and the buffer tank is connected to the resin device through a fifth pipeline, and the buffer tank can receive the metal solution when a fifth valve of the fifth pipeline is opened.

[0017] With the technical scheme, the buffer tank is added to collect the metal solution after pickling, so as to facilitate the secondary recycling of the metal solution.

[0018] In some embodiments, the resin device extends along a first direction, and a first end and a second end are arranged on both sides of the first direction, and the first end and / or the second end is provided with a mesh film.

[0019] With the technical scheme, the mesh film generally refers to a mesh structure film composed of tiny conductive materials, which has good flexibility, transparency and conductivity. It can effectively remove suspended solids, organic matter, inorganic particles and some microorganisms in water.

[0020] In some embodiments, the waste liquid treatment device further comprises a base, the base is sequentially provided with a layer plate and a bottom plate along a first direction, the resin device is located on the bottom plate and extends along the first direction, and the layer plate is located on one side of the resin device along a second direction.

[0021] With the technical scheme, the base is arranged to assemble the above-mentioned tank bodies and resin device.

[0022] Further, the layer plate is sequentially provided with the waste liquid tank, the acid tank, the alkali tank and the water tank along the second direction; and the bottom plate is provided with a buffer tank and a pump body.

[0023] With the technical scheme, a back plate can be additionally arranged to mount and fix the first pipeline, the second pipeline, the third pipeline, the fourth pipeline and the fifth pipeline, and corresponding valves and the like.

[0024] In some embodiments, the acidic solution in the acid tank is a sulfuric acid solution, and the concentration of the sulfuric acid solution is 4% to 6%.

[0025] In some embodiments, the alkaline solution in the alkali tank is a sodium hydroxide solution, and the concentration of the sodium hydroxide solution is 4% to 6%. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and all other drawings obtained by those skilled in the art without creative effort on the premise of the drawings also belong to the protection scope of the present application.

[0027] Figure 1 is a connection diagram of an embodiment of the waste liquid treatment device provided by the present application;

[0028] Figure 2 is a structural schematic diagram of an embodiment of the waste liquid treatment device provided by the present application.

[0029] In the drawings:

[0030] waste liquid tank - 10; first pipeline - 11; first valve - 12; resin device - 20; accommodating cavity - 21; first end - 22; second end - 23; acid tank - 30; second pipeline - 31; second valve - 32;

[0031] alkali tank - 40; third pipeline - 41; third valve - 42; water tank - 50; fourth pipeline - 51; fourth valve - 52; pump body - 60; buffer tank - 70; fifth pipeline - 71; fifth valve - 72;

[0032] base - 80; layer plate - 81; bottom plate - 82; back plate - 83. DETAILED DESCRIPTION

[0033] The technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort on the premise also belong to the protection scope of the present application.

[0034] In order to facilitate subsequent description, before the specific structure of the waste liquid treatment device is described, the present application first defines the first direction (Z) and the second direction (X) in combination with Figure 2 direction, for example, Z direction; the third direction is the width direction of the waste liquid treatment device when it is normally placed, for example, Y direction. The first direction (Z) and the second direction (X) in the present application are perpendicular to each other.

[0035] It can be understood that the mutual perpendicularity in the present application is not absolute perpendicularity, and approximate perpendicularity (for example, the included angle between two structural features is 89.9°) caused by processing errors and assembly errors is also within the range of mutual perpendicularity in the present application.

[0036] Referring to Figures 1 to 2 as shown, Figure 1 Fig. 1 shows a connection diagram of an embodiment of a waste liquid treatment device provided by the present application; Figure 2 Fig. 1 shows a connection diagram of an embodiment of a waste liquid treatment device provided by the present application;

[0037] In some embodiments, the waste liquid treatment device comprises a waste liquid tank 10, a resin device 20, an acid tank 30 and an alkali tank 40.

[0038] The waste liquid tank 10 is used to accommodate waste liquid; the resin device 20 has an accommodation chamber 21 filled with ion exchange resin, wherein the waste liquid tank 10 is connected with the resin device 20 through a first pipeline 11, and when a first valve 12 of the first pipeline 11 is opened, the waste liquid can flow into the accommodation chamber 21.

[0039] The acid tank 30 is used to accommodate an acidic solution, wherein the acid tank 30 is connected with the resin device 20 through a second pipeline 31, and when a second valve 32 of the second pipeline 31 is opened, the acidic solution can flow into the accommodation chamber 21; the alkali tank 40 is used to accommodate an alkaline solution, wherein the alkali tank 40 is connected with the resin device 20 through a third pipeline, and when a third valve of the third pipeline is opened, the alkaline solution can flow into the accommodation chamber 21.

[0040] In the embodiment of the present application, the waste liquid tank 10 is connected with the resin device 20 through the first pipeline 11, so that when the first valve 12 is opened, the waste liquid tank 10 is communicated with the resin device 20, the waste liquid in the waste liquid tank 10 can flow into the resin device 20, and the ion exchange resin in the resin device 20 can adsorb the ions in the waste liquid, thereby realizing the filtration of the waste liquid. According to different water quality, the corresponding ion exchange resin is used to adsorb the waste liquid. Thus, solid waste can be effectively avoided, and the waste liquid after adsorption can be directly discharged after the indicators are qualified.

[0041] Exemplarily, the resin device 20 is a cylindrical body, and the inside is filled with ion exchange resin to form a resin column structure. The ion exchange resin is a kind of insoluble high molecular compound with functional groups and network structure, usually in spherical particle or bead form, and has a high porosity structure. It can adsorb and desorb ions in the solution for ion exchange.

[0042] The acid tank 30 is connected to the resin device 20 through the second pipeline 31, so that when the second valve 32 is opened, the acidic solution can flow into the resin device 20 to perform an acid washing operation on the ion exchange resin, thereby reacting with the ions adsorbed by the ion exchange resin from the waste liquid to recover the metal ions in the waste liquid for secondary recovery and reuse. At the same time, the resin ions can be reused and have a long service life.

[0043] Exemplarily, the acidic solution in the acid tank 30 is a sulfuric acid solution, and the concentration of the sulfuric acid solution is 4% to 6%. For example, a 5% sulfuric acid solution is used.

[0044] In addition, the alkali tank 40 is connected to the resin device 20 through the third pipeline, so that when the third valve is opened, the alkaline solution can flow into the resin device 20 to perform an activation regeneration operation on the ion exchange resin, thereby improving the service life of the ion exchange resin. Exemplarily, the alkaline solution in the alkali tank 40 is a sodium hydroxide solution, and the concentration of the sodium hydroxide solution is 4% to 6%. For example, a 5% alkaline solution is used.

[0045] In some test processes for testing the feasibility of waste liquid adsorption treatment, the above-mentioned mode can quickly reflect the effect of waste liquid adsorption treatment, easily select a process flow for subsequent application in industrial waste liquid treatment, and effectively reduce the trial and error cost.

[0046] In some embodiments, the waste liquid treatment device further comprises a water tank for containing pure water, and the water tank is connected to the resin device 20 through a fourth pipeline, so that when a fourth valve of the fourth pipeline is opened, the pure water can flow into the containing space.

[0047] In the embodiments of the present application, the water tank is used to clean the resin device 20 after the acidic solution flows through, and is used to clean the resin device 20 after the alkaline solution flows through. When the fourth valve is opened, the pure water can flush the ion exchange resin in the resin device 20. The ion exchange resin is a kind of functional group, has a network structure, and is a kind of insoluble high molecular compound. It is usually in the form of spherical particles or beads and has a high porosity structure. It can adsorb and desorb ions in the solution to exchange ions. The cleaning treatment is performed to prolong the service life.

[0048] In some embodiments, the waste liquid treatment device further comprises a pump body 60 connected to the waste liquid tank 10, the acid tank 30 and the alkali tank 40 respectively, and used to convey the waste liquid, the acidic solution and the alkaline solution to flow through the resin device 20.

[0049] In the embodiments of the present application, the pump body 60 is arranged to drive the flow of various liquids. For example, the pump body 60 is a diaphragm pump. The diaphragm pump has strong self-suction capacity and can be adjusted to resist chemical corrosion by adjusting the diaphragm material, and is suitable for the delivery of the above-mentioned acidic solution and alkaline solution and waste liquid. In the embodiments of the present application, the type of the pump body 60 is not limited, for example, a centrifugal pump, a mixed flow pump, etc.

[0050] In some embodiments, the waste liquid treatment device further comprises a buffer tank 70, wherein the acidic solution flows through the resin device 20 to generate a metal solution, and the buffer tank 70 is connected to the resin device 20 through a fifth pipeline 71, and the buffer tank 70 can receive the metal solution when a fifth valve 72 of the fifth pipeline 71 is opened.

[0051] In the embodiments of the present application, the buffer tank 70 is additionally arranged to collect the metal solution after pickling, so as to facilitate the secondary recycling of the metal solution. For example, when the acidic solution flows through the ion adsorption resin, the metal ions react with the functional groups of the ion adsorption resin to form stable chelates. For example, the sodium ions on the resin are replaced by nickel ions to form nickel chelates, and the sodium ions enter the water. The acidic solution replaces the metal ions on the resin to generate a metal solution to recover the metal ions.

[0052] In some embodiments, the resin device 20 extends along a first direction, and a first end 22 and a second end 23 are arranged on both sides of the first direction, and the first end 22 and / or the second end 23 are provided with a mesh film.

[0053] In the embodiments of the present application, the mesh film generally refers to a mesh structure film composed of tiny conductive materials, which has good flexibility, transparency and conductivity. The mesh film arranged in the resin device 20 can effectively remove suspended solids, organic matter, inorganic particles and some microorganisms in water. Since the resin device 20 can reverse the flow direction, for example, upward or downward flow through the liquid. Therefore, the mesh film can be arranged at the first end 22, or at the second end 23, or at the first end 22 and the second end 23.

[0054] In some embodiments, the waste liquid treatment device further comprises a base 80, the base 80 is sequentially provided with a layer plate 81 and a bottom plate 82 along the first direction, the resin device 20 is located on the bottom plate 82 and extends along the first direction, and the layer plate 81 is located on one side of the resin device 20 along the second direction.

[0055] In the embodiments of the present application, the base 80 is arranged to assemble the above-mentioned tank bodies and the resin device 20. For example, as shown in FIG. 1, the layer plate 81 is sequentially provided with the waste liquid tank 10, the acid tank 30, the alkali tank 40 and the water tank along the second direction; and the bottom plate 82 is provided with the buffer tank 70 and the pump body 60. Figure 2 In the embodiments of the present application, the base 80 is arranged to assemble the above-mentioned tank bodies and the resin device 20. For example, as shown in FIG. 1, the layer plate 81 is sequentially provided with the waste liquid tank 10, the acid tank 30, the alkali tank 40 and the water tank along the second direction; and the bottom plate 82 is provided with the buffer tank 70 and the pump body 60.

[0056] Wherein, the back plate 83 can be additionally provided to install and fix the first pipe 11, the second pipe 31, the third pipe, the fourth pipe and the fifth pipe 71 and corresponding valves (not shown in the figure) and the like.

[0057] The above is only the embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, should be carried within the protection range of the present application.

Claims

1. A waste liquid treatment device characterized by comprising: The waste liquid treatment device comprises: a waste liquid tank for containing waste liquid; a resin device having a containing chamber filled with ion exchange resin, wherein the waste liquid tank is connected with the resin device through a first pipeline, and the waste liquid can flow into the containing chamber when a first valve of the first pipeline is opened; an acid tank for containing acidic solution, wherein the acid tank is connected with the resin device through a second pipeline, and the acidic solution can flow into the containing chamber when a second valve of the second pipeline is opened; a base tank for containing basic solution, wherein the base tank is connected with the resin device through a third pipeline, and the basic solution can flow into the containing chamber when a third valve of the third pipeline is opened.

2. The waste liquid processing apparatus according to claim 1, wherein The waste liquid treatment device further comprises a water tank for containing pure water, which is connected with the resin device through a fourth pipeline, and the pure water can flow into the containing space when a fourth valve of the fourth pipeline is opened.

3. The waste liquid processing device according to claim 1, wherein The waste liquid treatment device further comprises a pump body connected with the waste liquid tank, the acid tank and the base tank respectively, and used for conveying the waste liquid, the acidic solution and the basic solution to flow through the resin device.

4. The waste liquid processing device according to claim 3, wherein The pump body is a diaphragm pump.

5. The waste liquid treatment device according to claim 1, wherein The waste liquid treatment device further comprises a buffer tank, wherein the acidic solution generates metal solution after flowing through the resin device, and the buffer tank is connected with the resin device through a fifth pipeline, and the buffer tank can receive the metal solution when a fifth valve of the fifth pipeline is opened.

6. The waste liquid treatment device according to claim 1, wherein The resin device extends along a first direction, and first and second ends are arranged on both sides of the first direction, and the first and / or second ends are provided with a mesh film.

7. The waste liquid treatment device according to any one of claims 1 to 6, characterized in that, The waste liquid treatment device further comprises a base, which is sequentially provided with a layer plate and a bottom plate along a first direction, and the resin device is located on the bottom plate and extends along the first direction, wherein the layer plate is located on one side of the resin device along a second direction.

8. The waste liquid processing device according to claim 7, wherein The layer plate is sequentially provided with the waste liquid tank, the acid tank, the base tank and the water tank along the second direction; and the bottom plate is provided with the buffer tank and the pump body.

9. The waste liquid treatment device according to claim 1, wherein The acidic solution in the acid tank is sulfuric acid solution, wherein the concentration of the sulfuric acid solution is 4% to 6%.

10. The waste liquid treatment device according to claim 1, wherein The basic solution in the base tank is sodium hydroxide solution, wherein the concentration of the sodium hydroxide solution is 4% to 6%.

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