CN219217789U - Electroplating waste liquid recycling system - Google Patents
Electroplating waste liquid recycling system Download PDFInfo
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- CN219217789U CN219217789U CN202320200092.2U CN202320200092U CN219217789U CN 219217789 U CN219217789 U CN 219217789U CN 202320200092 U CN202320200092 U CN 202320200092U CN 219217789 U CN219217789 U CN 219217789U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
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Abstract
The utility model relates to the technical field of electroplating waste liquid treatment, in particular to a recycling treatment system of electroplating waste liquid, which comprises a waste water storage tank, a first plate-and-frame filter press, a neutralization reaction tank, a to-be-evaporated tank, a second plate-and-frame filter press, a flocculation device, a filter pressing device, an electrolysis device, a reverse osmosis device and a drying device which are sequentially communicated. According to the treatment system disclosed by the utility model, the acid and alkali are neutralized after the electroplating waste liquid is filtered, then the electroplating waste liquid is evaporated and concentrated, the filtrate obtained through reverse osmosis after the concentrated liquid is subjected to filter pressing and electrolysis can obtain reuse water reaching the reuse water standard, steps among processes are reduced, the overall electroplating waste liquid treatment efficiency is improved, the sedimentation slag obtained through reverse osmosis can be subjected to drying treatment to obtain metal sedimentation for recycling, the reuse quality of the electroplating concentrated liquid is effectively improved, and the emission pollution is reduced.
Description
Technical Field
The utility model relates to the technical field of electroplating waste liquid treatment, in particular to a recycling treatment system of electroplating waste liquid.
Background
In the electrogalvanizing process of the zipper head, because the front end rust removing waste water is taken into the plating solution tank, in addition, hydrochloric acid, potassium chloride, zinc chloride, boric acid, brightening agent and softening agent are added into the plating solution tank, the liquid level of the plating solution tank rises. Secondly, due to overlong service time of the plating solution, excessive accumulation of various heavy metal impurities, organic matter impurities and the like in the plating solution can cause the surface of a galvanized layer to be matt, grey and yellow, and the like, and serious adverse effects are brought to the product quality, so that the plating solution needs to be replaced periodically.
Along with the high-speed development of electroplating industry, a large amount of electroplating waste liquid cannot be effectively recycled and utilized, most enterprises directly discharge the electroplating waste liquid to sewage treatment, but the waste liquid has toxicity and volatility and is easy to cause secondary pollution. And heavy metals generated by the method are extremely harmful to human bodies, so that the advanced treatment of the electroplating waste liquid is not delayed, and the advanced treatment of the electroplating waste liquid is not delayed. Ion exchange and membrane separation techniques are very costly and are not suitable for large throughput plating solutions. The chemical precipitation method needs larger precipitation medicine amount, more sludge is produced, and the sludge treatment needs additional treatment cost and has larger cost. In addition, most of the existing treatment equipment can only perform primary treatment, the chemical agent is added in a large amount, a large amount of water resources and heavy metal substances in the treatment equipment are directly discharged or subjected to out-of-commission treatment, so that the resources are greatly wasted, a large amount of sludge is generated in a chemical agent adding mode, secondary pollution is easily caused, and the treatment is difficult to effectively treat.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the utility model aims to provide a recovery treatment system for electroplating waste liquid, which is characterized in that acid and alkali are neutralized after the electroplating waste liquid is filtered, then the electroplating waste liquid is evaporated and concentrated, the filtrate obtained through reverse osmosis after the concentrated solution is subjected to filter pressing and electrolysis can obtain reuse water reaching the reuse water standard, the sedimentation slag obtained through reverse osmosis can be subjected to drying treatment to obtain metal sedimentation for recycling, the reuse quality of the electroplating concentrated liquid is effectively improved, and the emission pollution is reduced.
The aim of the utility model is achieved by the following technical scheme: the utility model provides a recovery processing system of electroplating waste liquid, includes waste water reservoir, first plate-and-frame filter press, neutralization reaction pond, treats evaporation pond, second plate-and-frame filter press, flocculation device, filter pressing device, electrolytic device, reverse osmosis unit, drying device, waste water reservoir with first plate-and-frame filter press intercommunication, first plate-and-frame filter press with neutralization reaction pond intercommunication, neutralization reaction pond with treat the evaporation pond intercommunication, treat the evaporation pond with second plate-and-frame filter press intercommunication, second plate-and-frame filter press with flocculation device intercommunication, flocculation device with filter pressing device intercommunication, filter pressing device with electrolytic device intercommunication, electrolytic device with reverse osmosis unit intercommunication, reverse osmosis unit with drying device intercommunication.
Further, the treatment system further comprises a sedimentation tank, a sludge collecting tank and a spraying device, wherein the first plate-and-frame filter press is provided with a first outlet end and a second outlet end, the sedimentation tank is provided with two inlet ends and two outlet ends, the neutralization reaction tank is communicated with the first outlet end, the inlet end of the sedimentation tank is communicated with the second outlet end, the outlet end of the sedimentation tank is communicated with the sludge collecting tank, the other outlet end of the sedimentation tank is communicated with the wastewater storing tank, and the spraying device is communicated with the other inlet end of the sedimentation tank.
Further, the treatment system further comprises a first collecting device and a second collecting device, the filter pressing device is provided with two outlet ends, the electrolysis device is communicated with the outlet end of the filter pressing device, the first collecting device is communicated with the other outlet end of the filter pressing device, and the second collecting device is communicated with the drying device.
Further, the treatment system also comprises a treated water collecting tank, wherein the inlet end of the treated water collecting tank is communicated with the reverse osmosis device, and the outlet end of the treated water collecting tank is communicated with the spraying device.
Further, the treatment system further comprises a waste residue collecting device, the electrolysis device is provided with two outlet ends, the reverse osmosis device is communicated with the outlet end of the electrolysis device, and the waste residue collecting device is communicated with the other outlet end of the electrolysis device.
The utility model has the beneficial effects that: according to the treatment system disclosed by the utility model, the acid and alkali are neutralized after the electroplating waste liquid is filtered, then the electroplating waste liquid is evaporated and concentrated, the filtrate obtained through reverse osmosis after the concentrated liquid is subjected to filter pressing and electrolysis can obtain reuse water reaching the reuse water standard, steps among processes are reduced, the overall electroplating waste liquid treatment efficiency is improved, the sedimentation slag obtained through reverse osmosis can be subjected to drying treatment to obtain metal sedimentation for recycling, the reuse quality of the electroplating concentrated liquid is effectively improved, and the emission pollution is reduced.
Drawings
Fig. 1 is a perspective view of the present utility model.
The reference numerals are: 1-wastewater storage tank, 2-first plate-and-frame filter press, 21-first outlet end, 22-second outlet end, 3-neutralization reaction tank, 4-evaporation tank, 5-second plate-and-frame filter press, 6-flocculation device, 7-filter press device, 8-electrolysis device, 9-reverse osmosis device, 10-drying device, 11-sedimentation tank, 12-sludge collection tank, 13-spraying device, 14-first collection device, 15-second collection device, 16-treated water collection tank and 17-waste residue collection device.
Detailed Description
The present utility model is further described below with reference to examples and fig. 1 for the understanding of those skilled in the art, and the description of the embodiments is not intended to limit the present utility model.
See fig. 1, a recovery processing system of electroplating waste liquid, including waste water reservoir 1, first plate-and-frame filter press 2, neutralization reaction pond 3, wait evaporation pond 4, second plate-and-frame filter press 5, flocculation device 6, filter pressing device 7, electrolysis unit 8, reverse osmosis unit 9, drying device 10, waste water reservoir 1 with first plate-and-frame filter press 2 communicates, first plate-and-frame filter press 2 with neutralization reaction pond 3 communicates, neutralization reaction pond 3 with wait evaporation pond 4 communicates, wait evaporation pond 4 with second plate-and-frame filter press 5 communicates, second plate-and-frame filter press 5 with flocculation device 6 communicates, flocculation device 6 with filter pressing device 7 communicates, filter pressing device 7 with electrolysis unit 8 communicates, electrolysis unit 8 with reverse osmosis unit 9 communicates, reverse osmosis unit 9 with drying device 10 communicates.
The treatment system in this embodiment filters the impurity through first plate-and-frame filter press 2 treatment with electroplating waste liquid, and the filtrate gets into neutralization reaction pond 3 and adds acid-base medicament and carry out neutralization dilution, afterwards evaporation concentration improves the metal ion concentration in the stoste, and to concentrate filter-pressing, electrolysis, the filtrate that the reverse osmosis obtained after the electrolysis is accomplished can obtain the reuse water that reaches reuse water standard, reduce the step between the technology, has improved holistic electroplating waste liquid treatment's efficiency, and reverse osmosis obtains the sediment and can obtain metal sedimentation recycle through the drying treatment, effectively promotes electroplating concentrate retrieval and utilization quality, reduces emission pollution. Wherein, the electrolysis device 8 takes a stainless steel sheet as a cathode of the cyclone electrolysis device 8, irO 2 -Ta 2 O 5 The Ti rod is the anode of the cyclone electrolyzer 8, the cyclone electrolyzer 8 is used for electrolyzing the waste liquid, copper and zinc are obtained at the cathode, and the electrolyte is transferred to the drying device 10 for drying treatment after passing through the reverse osmosis device 9, so that metal sedimentation can be obtained for recycling.
In this embodiment, the treatment system further includes a sedimentation tank 11, a sludge collection tank 12 and a spraying device 13, where the first plate-and-frame filter press 2 is provided with a first outlet end 21 and a second outlet end 22, the sedimentation tank 11 is provided with two inlet ends and two outlet ends, the neutralization reaction tank 3 is communicated with the first outlet end 21, the inlet end of the sedimentation tank 11 is communicated with the second outlet end 22, the outlet end of the sedimentation tank 11 is communicated with the sludge collection tank 12, the other outlet end of the sedimentation tank 11 is communicated with the wastewater storage tank 1, and the spraying device 13 is communicated with the other inlet end of the sedimentation tank 11; the treatment system further comprises a treated water collection tank 16, wherein the inlet end of the treated water collection tank 16 is communicated with the reverse osmosis device 9, and the outlet end of the treated water collection tank 16 is communicated with the spraying device 13.
In this embodiment, part of acid washing residues in impurities are removed by utilizing spray liquid reaction, and then the solution is sent to a sedimentation tank 11 to sediment the impurities, the settled upper layer solution is sent to a wastewater storage tank 1 to be continuously recycled, the lower layer sludge is sent to a sludge collection tank 12 to be collected, and part of treatment water collected by the reverse osmosis device 9 treatment can be recycled to be used in a spray device 13, so that the utilization rate of the sewage is improved, the consumption of external water in the electroplating waste liquid treatment process is reduced, and the effect of saving water resources is further achieved.
In this embodiment, the treatment system further includes a first collecting device 14 and a second collecting device 15, where the filter press device 7 is provided with two outlet ends, the electrolysis device 8 is communicated with the outlet end of the filter press device 7, the first collecting device 14 is communicated with the other outlet end of the filter press device 7, and the second collecting device 15 is communicated with the drying device 10; the treatment system further comprises a waste residue collecting device 17, the electrolysis device 8 is provided with two outlet ends, the reverse osmosis device 9 is communicated with the outlet end of the electrolysis device 8, and the waste residue collecting device 17 is communicated with the other outlet end of the electrolysis device 8.
The first collecting device 14 provided in this embodiment can collect some residues after filtering by the filter pressing device 7, so as to avoid the residues from affecting the filter pressing effect of the filter pressing device 7, and the second collecting device 15 provided can be used for collecting some metals such as copper and zinc obtained after treatment, so as to realize recycling, and finally, the treated water after treatment reaches the industrial reuse water of reuse water standard.
The above embodiments are preferred embodiments of the present utility model, and besides, the present utility model may be implemented in other ways, and any obvious substitution is within the scope of the present utility model without departing from the concept of the present utility model.
Claims (5)
1. A recovery processing system of electroplating effluent, its characterized in that: including waste water storage pond, first plate-and-frame filter press, neutralization reaction pond, wait evaporation pond, second plate-and-frame filter press, flocculation device, filter pressing device, electrolytic device, reverse osmosis unit, drying device, waste water storage pond with first plate-and-frame filter press intercommunication, first plate-and-frame filter press with neutralization reaction pond intercommunication, neutralization reaction pond with wait to evaporate the pond intercommunication, wait to evaporate the pond with second plate-and-frame filter press intercommunication, second plate-and-frame filter press with flocculation device intercommunication, flocculation device with filter pressing device intercommunication, filter pressing device with electrolytic device intercommunication, electrolytic device with reverse osmosis unit intercommunication, reverse osmosis unit with drying device intercommunication.
2. The electroplating effluent recycling system according to claim 1, wherein: the treatment system further comprises a sedimentation tank, a sludge collecting tank and a spraying device, wherein the first plate-and-frame filter press is provided with a first outlet end and a second outlet end, the sedimentation tank is provided with two inlet ends and two outlet ends, the neutralization reaction tank is communicated with the first outlet end, the inlet end of the sedimentation tank is communicated with the second outlet end, the outlet end of the sedimentation tank is communicated with the sludge collecting tank, the other outlet end of the sedimentation tank is communicated with the wastewater storage tank, and the spraying device is communicated with the other inlet end of the sedimentation tank.
3. The electroplating effluent recycling system according to claim 1, wherein: the treatment system further comprises a first collecting device and a second collecting device, wherein the filter pressing device is provided with two outlet ends, the electrolysis device is communicated with the outlet end of the filter pressing device, the first collecting device is communicated with the other outlet end of the filter pressing device, and the second collecting device is communicated with the drying device.
4. The electroplating effluent recycling system according to claim 2, wherein: the treatment system further comprises a treated water collecting tank, wherein the inlet end of the treated water collecting tank is communicated with the reverse osmosis device, and the outlet end of the treated water collecting tank is communicated with the spraying device.
5. The electroplating effluent recycling system according to claim 1, wherein: the treatment system further comprises a waste residue collecting device, the electrolysis device is provided with two outlet ends, the reverse osmosis device is communicated with the outlet end of the electrolysis device, and the waste residue collecting device is communicated with the other outlet end of the electrolysis device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320200092.2U CN219217789U (en) | 2023-02-14 | 2023-02-14 | Electroplating waste liquid recycling system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320200092.2U CN219217789U (en) | 2023-02-14 | 2023-02-14 | Electroplating waste liquid recycling system |
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| CN219217789U true CN219217789U (en) | 2023-06-20 |
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| CN202320200092.2U Active CN219217789U (en) | 2023-02-14 | 2023-02-14 | Electroplating waste liquid recycling system |
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- 2023-02-14 CN CN202320200092.2U patent/CN219217789U/en active Active
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