High-copper wastewater treatment system for electroplating industrial park
By adopting the high -copper wastewater treatment system in the electroplating industrial park, using the technical means such as the order reaction pool and iron powder, the problem of low processing efficiency and high treatment cost of high copper wastewater, and achieved efficient removal of total copper to achieve low concentration wastewater. Standard effect.
Patent Information
- Application Number
- CN202420599502.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-27
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-03-27
AI Technical Summary
The existing high-copper wastewater treatment methods are relatively low in efficiency, have large doses of agents, large sludge production, and are relatively high in treatment costs, making it difficult to meet the standards in a stable manner in the long run.
The high -copper wastewater treatment system is adopted by the electroplating industrial park. The system includes high copper regulation pools, preface reaction tanks, sedimentation tanks, high copper downtia ponds, and comprehensive wastewater adjustment tanks. High copper wastewater, use the stirring shaft and mixing paddle leaves to mix well to improve the treatment efficiency.
The total copper in the high copper wastewater was achieved efficiently. The total copper out of the water reached about 30mg/L, reaching the standard of low concentration wastewater, reducing the area of equipment occupying the area and the amount of pharmaceuticals, and increasing the treatment effect and economic recycling value.
Smart Images
Figure CN222411248U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of wastewater treatment, in particular to a high-copper wastewater treatment system in an electroplating industrial park. Background Art
[0002] High-copper wastewater is a common type of wastewater in electroplating industrial parks. It mainly comes from the production process of electroplating copper wire and etching wire. The two types of wastewater mainly contain complex and ionic copper. The copper ions are affected by the external electric field and are reduced to copper atoms on the cathode surface, thereby achieving the effect of copper plating. This process uses a large amount of chemical copper, nitric acid, and sulfuric acid, resulting in acidic wastewater, and the total copper content of wastewater pollutants is very high. At the same time, the pH value is very low. The total copper in high-copper wastewater can be as high as 500-3000 mg / L, and the pH is usually around 1-3.
[0003] There are many methods for treating high-copper wastewater at present, the common ones include chemical precipitation, ion exchange, sulfide precipitation and other processes. Chemical precipitation is often used to remove copper. Nickel also has a certain removal efficiency for other heavy metal ions. The process is mature, but the dosage of reagents is large, the sludge output is large, and the reaction pool occupies a large area. The ion exchange method can effectively remove most heavy metal ions, but this method requires a large amount of resin and regeneration liquid, etc., the treatment cost is high, and there are certain requirements for the heavy metal ion concentration of the influent. The sulfide precipitation method uses sulfide and copper to form a relatively stable chemical precipitate, which can effectively remove copper ions. The process is relatively mature, but the dosage of reagents is large, the sludge output is large, and the reaction pool occupies a large area. The output is high and sodium sulfide is toxic and can easily cause secondary pollution; in short, each of the above processes has its own advantages and disadvantages. Overall, in order to ensure that the effluent of high-copper wastewater meets the standards stably, from the perspective of the long-term operation of the electroplating industrial park, the pH of high-copper wastewater is relatively low and stable, and no additional acid is required. The iron powder replacement method can be used to efficiently remove copper ions, and most of the copper in the high-copper wastewater can be removed, and it has a high recycling value. At the same time, it can reduce the equipment, the difficulty of operating the original system, and the problem of unstable effluent. Therefore, the utility model proposes a high-copper wastewater treatment system for an electroplating industrial park to meet the needs of stably meeting standards and economically and reasonably treating electroplating high-copper wastewater. Utility Model Content
[0004] In view of this, the purpose of the utility model is to propose a high-copper wastewater treatment system for an electroplating industrial park to solve the problem of low efficiency in treating high-copper wastewater from electroplating.
[0005] Based on the above purpose, the utility model provides a high-copper wastewater treatment system for an electroplating industrial park, comprising a support frame, a ladder is fixedly connected to one side of the support frame, a first unit and a second unit are fixedly connected to one side of the ladder in sequence, the first unit comprises a high-copper regulating tank and a sequencing batch reaction tank, the second unit comprises a lifting pump, a sedimentation tank, a high-copper sludge tank and a comprehensive wastewater regulating tank; the high-copper regulating tank is connected to the sequencing batch reaction tank through a connecting pipe, a lifting pump is fixedly connected to one side of the sequencing batch reaction tank, and one end of the lifting pump is connected to the sedimentation tank.
[0006] Preferably, a lift pump and a flow meter are also provided on the connecting pipeline.
[0007] Preferably, a lifting pump is provided on the pipeline connecting the sequencing batch reaction tank and the sedimentation tank.
[0008] Preferably, the sedimentation tank and the comprehensive wastewater regulating tank are connected by a pipeline, and a lifting pump is provided in the connecting pipeline.
[0009] Preferably, a driving motor is provided inside the sequencing batch reaction cell, an output end of the driving motor is fixedly connected to a stirring shaft, and a plurality of groups of stirring blades are fixedly sleeved on the stirring shaft.
[0010] Preferably, a high-copper sludge filter press is provided in the high-copper sludge pool, and the high-copper sludge filter press can independently press the high-copper sludge for recovery.
[0011] Preferably, a sludge pump is fixedly provided at the bottom of the high-copper sludge pool, and the sludge pump is used to discharge the high-copper sludge in the high-copper sludge pool.
[0012] Preferably, a plurality of discharge ports are provided on the top of the sequencing batch reaction tank, and iron powder and PAM can be added into the discharge ports respectively.
[0013] Preferably, an inspection port is provided through the inner wall of the sequencing batch reaction pool, the inspection port is tightly fitted with the inner wall of the sequencing batch reaction pool, and the inspection port can be used to observe the situation in the sequencing batch reaction pool.
[0014] Preferably, the sedimentation tank is a long rectangular structure, which is used to precipitate high-copper wastewater.
[0015] Beneficial effects of the utility model:
[0016] 1. When treating high-copper wastewater, firstly, the wastewater in the high-copper regulating tank is lifted to the sequencing batch reaction tank through the connecting pipe, and iron powder and PAM are added and treated in the sequencing batch reaction tank at the same time. The driving motor in the sequencing batch reaction tank is started to drive the stirring blade to rotate, so that the high-copper wastewater, iron powder and PAM can be evenly mixed, thereby improving the treatment efficiency. At the same time, the iron powder used is relatively cheap, and the replaced copper is mostly elemental copper with relatively stable chemical properties and high total copper removal rate. The copper content of the produced copper sludge is greatly improved compared with other copper-containing sludges, and has a high economic recovery value. Most of the total copper is removed by the first unit, and the total copper of the effluent can reach about 30 mg / L, reaching the low-concentration wastewater standard; the efficiency of treating high-copper wastewater to low-concentration wastewater standards is further improved, and the treatment effect is effectively improved.
[0017] 2. And it can use the "sequencing batch reaction + filter press system" high-copper wastewater treatment process, which does not require complex equipment. Compared with other wastewater treatment structures, the sequencing batch reaction tank occupies a small area and requires less reagent addition. Only one sequencing batch reaction tank is needed, and then iron powder and PAM are added for reaction precipitation to remove 95% of the total copper, which further improves the standard for treating high-copper wastewater into low-concentration wastewater and effectively improves the treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0019] Figure 1 This is the existing high copper wastewater treatment flow chart;
[0020] Figure 2 This is the high copper wastewater treatment flow chart of the utility model;
[0021] Figure 3 This is a schematic diagram of the first perspective of the high-copper wastewater treatment device of the utility model;
[0022] Figure 4 This is a schematic diagram of the second viewing angle of the high-copper wastewater treatment device of the utility model;
[0023] Figure 5 This is a schematic diagram of a batch reaction pool of the utility model;
[0024] Figure 6 It is a partial cutaway schematic diagram of a sequential batch reaction tank of the utility model.
[0025] The markings in the figure are: 1. Support frame; 2. Ladder; 3. High-copper regulating tank; 4. Connecting pipes; 5. Sequential batch reaction tank; 6. Lifting pump; 7. Sedimentation tank; 8. High-copper sludge tank; 9. Comprehensive wastewater regulating tank; 10. Sludge pump; 11. Drive motor; 12. Agitator shaft; 13. Agitator blades; 14. Inspection port. DETAILED DESCRIPTION
[0026] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.
[0027] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0028] like Figure 1-Figure 6 As shown, a high-copper wastewater treatment system for an electroplating industrial park comprises a support frame 1, a ladder 2 is fixedly connected to one side of the support frame 1, a first unit and a second unit are fixedly connected to one side of the ladder 2 in sequence, the first unit comprises a high-copper regulating tank 3 and a sequencing batch reaction tank 5, the second unit comprises a lifting pump 6, a sedimentation tank 7, a high-copper sludge tank 8 and a comprehensive wastewater regulating tank 9; the high-copper regulating tank 3 is connected to the sequencing batch reaction tank 5 through a connecting pipe 4, a lifting pump 6 is fixedly connected to one side of the sequencing batch reaction tank 5, one end of the lifting pump 6 is connected to the sedimentation tank 7, when the high-copper wastewater is treated, the high-concentration wastewater can be converted into low-concentration wastewater through the first unit and the second unit, and a primary treatment stage is formed by the high-copper regulating tank 3, the connecting pipe 4, the sequencing batch reaction tank 5, etc.; most of the total copper pollutants can be removed by adding iron powder, and the treatment effect of the high-copper wastewater is further improved.
[0029] like Figure 3-Figure 6As shown, a lifting pump 6 is provided on the pipeline connecting the sequencing batch reaction tank 5 and the sedimentation tank 7. The sedimentation tank 7 is a long rectangular structure and is used to precipitate the high-copper wastewater. A pipeline is connected between the sedimentation tank 7 and the comprehensive wastewater regulating tank 9. A lifting pump 6 is provided in the connecting pipeline. A lifting pump 6 and a flow meter are also provided on the connecting pipeline 4. A high-copper sludge filter press is provided in the high-copper sludge tank 8. The high-copper sludge filter press can independently squeeze the high-copper sludge for recovery. A sludge pump 10 is fixedly provided at the bottom of the high-copper sludge tank 8. The sludge pump 10 is used to transfer the high-copper sludge in the high-copper sludge tank 8 to the high-copper sludge. The top of the sequencing batch reaction tank 5 is provided with a plurality of discharge ports, into which iron powder and PAM can be added respectively. An inspection port 14 is provided through the inner wall of the sequencing batch reaction tank 5, and the inspection port 14 is closely fitted with the inner wall of the sequencing batch reaction tank 5. The inspection port 14 can be used to observe the situation in the sequencing batch reaction tank 5. A driving motor 11 is provided inside the sequencing batch reaction tank 5, and a stirring shaft 12 is fixedly connected to the output end of the driving motor 11, and a plurality of stirring blades 13 are fixedly sleeved on the stirring shaft 12. When high-copper wastewater is treated, the high-copper wastewater is firstly discharged through the connecting pipe 4. The wastewater in the copper regulating tank 3 is lifted to the sequencing batch reaction tank 5, and is treated in the sequencing batch reaction tank 5 by adding iron powder and PAM. The driving motor 11 in the sequencing batch reaction tank 5 is started to drive the stirring blade 13 to rotate, so that the high-copper wastewater, iron powder and PAM can be evenly mixed, thereby improving the treatment efficiency. At the same time, the iron powder used is relatively cheap, and the replaced copper is mostly single copper with relatively stable chemical properties and high total copper removal rate. The copper content of the produced copper sludge is greatly improved compared with other copper-containing sludges, and has a high economic return. The recovery value is achieved by removing most of the total copper through the first unit, and the total copper in the effluent can reach about 30 mg / L, reaching the low-concentration wastewater standard; and it can pass the high-copper wastewater treatment process of "sequencing batch reaction + filter press system", without complex equipment. The sequencing batch reaction tank 5, compared with other wastewater treatment structures, occupies a small area and requires less reagent addition. Only one sequencing batch reaction tank 5 is needed, and then iron powder and PAM are added for reaction precipitation to remove 95% of the total copper, which further improves the standard of treating high-copper wastewater into low-concentration wastewater and effectively improves the treatment effect.
[0030] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.
[0031] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.
Claims
1. A high copper wastewater treatment system in an electroplating industrial park, characterized in that: The invention comprises a support frame (1), one side of the support frame (1) is fixedly connected to a ladder (2), one side of the ladder (2) is fixedly connected to a first unit and a second unit in sequence, the first unit comprises a high-copper regulating tank (3) and a sequencing batch reaction tank (5), the second unit comprises a lifting pump (6), a sedimentation tank (7), a high-copper sludge tank (8) and a comprehensive wastewater regulating tank (9); the high-copper regulating tank (3) is connected to the sequencing batch reaction tank (5) via a connecting pipe (4), one side of the sequencing batch reaction tank (5) is fixedly connected to a lifting pump (6), and one end of the lifting pump (6) is connected to the sedimentation tank (7).
2. The electroplating industrial park high copper wastewater treatment system according to claim 1, characterized in that: The connecting pipeline (4) is also provided with a lift pump (6) and a flow meter.
3. The electroplating industrial park high copper wastewater treatment system according to claim 1, characterized in that: A lifting pump (6) is provided on the pipeline connecting the sequencing batch reaction tank (5) and the sedimentation tank (7).
4. The electroplating industrial park high copper wastewater treatment system according to claim 1 is characterized in that: A pipeline is connected between the sedimentation tank (7) and the comprehensive wastewater regulating tank (9), and the lifting pump (6) is connected to the pipeline.
5. The electroplating industrial park high copper wastewater treatment system according to claim 2, characterized in that: A driving motor (11) is provided inside the sequencing batch reaction tank (5), an output end of the driving motor (11) is fixedly connected to a stirring shaft (12), and a plurality of groups of stirring blades (13) are fixedly sleeved on the stirring shaft (12).
6. The electroplating industrial park high copper wastewater treatment system according to claim 2, characterized in that: A high-copper sludge filter press is provided in the high-copper sludge pool (8), and the high-copper sludge filter press can independently press the high-copper sludge for recovery.
7. The electroplating industrial park high copper wastewater treatment system according to claim 2, characterized in that: A sludge pump (10) is fixedly provided at the bottom of the high-copper sludge pool (8), and the sludge pump (10) is used to discharge the high-copper sludge in the high-copper sludge pool (8).
8. The electroplating industrial park high copper wastewater treatment system according to claim 2, characterized in that: The top of the sequencing batch reaction tank (5) is provided with a plurality of discharge ports, into which iron powder and PAM can be added respectively.
9. The electroplating industrial park high copper wastewater treatment system according to claim 2, characterized in that: An inspection port (14) is provided through the inner wall of the sequencing batch reaction pool (5), the inspection port (14) is tightly fitted to the inner wall of the sequencing batch reaction pool (5), and the inspection port (14) can be used to observe the situation inside the sequencing batch reaction pool (5).
10. The electroplating industrial park high copper wastewater treatment system according to claim 2, characterized in that: The sedimentation tank (7) is a long rectangular structure and is used to precipitate high-copper wastewater.