CN216584635U - Chemical nickel plating rinsing water treatment system - Google Patents
Chemical nickel plating rinsing water treatment system Download PDFInfo
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- CN216584635U CN216584635U CN202122827256.8U CN202122827256U CN216584635U CN 216584635 U CN216584635 U CN 216584635U CN 202122827256 U CN202122827256 U CN 202122827256U CN 216584635 U CN216584635 U CN 216584635U
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Abstract
The utility model relates to the field of wastewater treatment, in particular to a chemical nickel plating rinsing water treatment system, which comprises a stock solution tank, a ferric iron reaction tank, a first sedimentation tank, an electro-Fenton reaction tank, a second sedimentation tank and a water outlet tank which are sequentially communicated through pipelines, wherein ph adjusting chambers are respectively arranged in the stock solution tank and the electro-Fenton reaction tank, and the ferric iron reaction tank and the electro-Fenton reaction tank are respectively provided with a doser.
Description
Technical Field
The utility model relates to the technical field of wastewater treatment, in particular to a chemical nickel plating rinsing water treatment system.
Background
Chemical nickel plating, also known as electroless nickel plating, is a process of reducing nickel ions into metallic nickel at a high temperature by using a reducing agent and depositing on the surface of a plated part, and is one of the surface treatment technologies which develop rapidly at home and abroad in recent years. With the increasingly mature chemical nickel plating technology, the application range is wider and the production scale is enlarged, so that the generated environmental problem is more and more serious. The chemical nickel plating rinsing water contains a large amount of nickel ions, sodium phosphite, sodium hypophosphite, ammonia nitrogen, a stabilizer, an accelerator and other organic matters. Because the phosphorus contained in the chemical nickel plating rinsing water basically exists in the form of hypophosphite and phosphite, the phosphorous discharge in the chemical nickel plating rinsing water is difficult to form sediment with metal so as to be removed along with the stricter regulation of phosphorus discharge in various places at present, so that the standard reaching difficulty of the chemical nickel plating discharge is larger.
At present, the conventional treatment process is to oxidize the hypophosphorous acid in the chemical nickel plating rinsing water into the orthophosphoric acid by adding sodium hypochlorite or a Fenton reagent, and then add metal ions to remove the orthophosphoric acid, but the treatment does not reach the standard because the oxidation efficiency is limited and the hypophosphorous acid cannot be completely removed.
Disclosure of Invention
In order to solve the problems, the utility model provides a chemical nickel plating rinsing water treatment system which is simple and reasonable in structural design, stable in operation and good in treatment effect.
The technical scheme adopted by the utility model is as follows:
the utility model provides a chemical nickel plating rinsing water processing system, includes stock solution pond, ferric iron reaction tank, first sedimentation tank, electro-Fenton reaction tank, second sedimentation tank and the play pond that communicates in proper order through the pipeline, the stock solution pond with be equipped with the ph surge chamber in the electro-Fenton reaction tank respectively, ferric iron reaction tank with the electro-Fenton reaction tank is equipped with the doser respectively.
The technical proposal is further improved in that a biochemical treatment tank is arranged between the second sedimentation tank and the water outlet tank.
The technical proposal is further improved in that the electro-Fenton reaction tank is provided with a Fenton reactor.
The technical proposal is further improved in that the anode and the cathode of the electro-Fenton reactor are respectively made of iron plates.
The technical scheme is further improved in that the electro-Fenton reaction tank is provided with an electro-Fenton reactor, a power supply of the electro-Fenton reactor adopts a pole-reversing power supply, and the pole-reversing time is 5-20 min.
The technical proposal is further improved in that the retention time of the ferric iron reaction tank is 15-20 min.
The technical proposal is further improved in that the ph adjusting chamber is connected with a ph doser.
The further improvement of the technical scheme is that the bottom of the first sedimentation tank and the bottom of the second sedimentation tank are respectively provided with a sewage draining outlet.
The technical scheme is further improved in that a control valve is arranged on a pipeline between the stock solution tank and the ferric iron reaction tank, and another control valve is arranged on a pipeline between the first sedimentation tank and the electro-Fenton reaction tank.
The utility model has the following beneficial effects:
the chemical nickel plating rinsing water treatment system comprises a stock solution tank, a ferric iron reaction tank, a first sedimentation tank, an electro-Fenton reaction tank, a second sedimentation tank and a water outlet tank which are sequentially communicated through pipelines, wherein ph adjusting chambers are respectively arranged in the stock solution tank and the electro-Fenton reaction tank, and chemical dosing devices are respectively arranged in the ferric iron reaction tank and the electro-Fenton reaction tank.
Drawings
FIG. 1 is a schematic flow diagram of a processing system of the present invention;
description of reference numerals: 1. the system comprises a stock solution tank, 2, a ferric iron reaction tank, 3, a first sedimentation tank, 4, an electro-Fenton reaction tank, 5, a second sedimentation tank, 6, a water outlet tank and 7, a biochemical treatment tank.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. It is to be noted that, in the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the utility model.
Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Meanwhile, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, for example, as being fixedly connected, detachably connected, or integrally connected; the connection can be mechanical connection or electrical connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases by those skilled in the art, and all other embodiments obtained by those skilled in the art without inventive efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
As shown in fig. 1, chemical nickel plating rinsing water processing system of this embodiment includes stock solution pond 1, ferric reaction tank 2, first sedimentation tank 3, electro-fenton reaction tank 4, second sedimentation tank 5 and play pond 6 that communicate in proper order through the pipeline, stock solution pond 1 with be equipped with the ph surge chamber in the electro-fenton reaction tank 4 respectively, ferric reaction tank 2 with electro-fenton reaction tank 4 is equipped with the doser respectively, its simple structure, reasonable in design, through ferric pre-sedimentation coupling electro-fenton oxidation treatment mode, can solve conventional system oxidation inferior phosphorous inefficiency, the poor problem of treatment effect, the processing system degree of automation of this application is high simultaneously, and the running cost is low, can realize chemical nickel plating rinsing up-to-standard processing.
A control valve is arranged on a pipeline between the stock solution tank 1 and the ferric iron reaction tank 2, and another control valve is arranged on a pipeline between the first sedimentation tank 3 and the electro-Fenton reaction tank 4.
Specifically, a biochemical treatment tank 7 is arranged between the second sedimentation tank 5 and the water outlet tank 6, and in this embodiment, by additionally arranging the biochemical treatment tank 7, nickel treatment can be further performed, so that effective treatment of the chemical nickel plating rinse water is realized.
electro-Fenton reaction tank 4 is equipped with the Fenton reactor, the positive pole and the negative pole of electro-Fenton reactor are established respectively to iron plate, the power of electro-Fenton reactor adopts the source of falling utmost point, and the time of falling utmost point is 5-20min, and the such setting of this embodiment, on the basis of most phosphorous is got rid of to ferric iron reaction tank 2, further nickel and the phosphorus of getting rid of in the waste water, ensure that nickel and phosphorus in the waste water are effectively got rid of, and its structural design is simple, and the operation is stable, and the running cost is low, and the treatment effect is good.
The retention time of the ferric iron reaction tank 2 is 15-20min, more than 80% of phosphorous in the wastewater can be formed into ferric phosphite by adding ferric iron into the ferric iron reaction tank 2, and the ferric phosphite is removed through subsequent precipitation, so that the design is simple and reasonable, the operation cost is low, and the treatment effect is good.
The ph adjustment chamber is connected with the ph doser, and through setting up the ph doser, can effectively adjust through the ph to the waste liquid to ensure the waste liquid treatment effect.
The bottom of the first sedimentation tank 3 and the bottom of the second sedimentation tank 5 are respectively provided with a sewage discharge outlet, sludge in the tanks can be discharged regularly through the sewage discharge outlets, the structural design is simple, and sewage discharge is convenient.
Stock solution pond 1 with pipeline between the ferric reaction pond 2 with first sedimentation tank 3 with pipeline between the electro-Fenton reaction pond 4 is equipped with the control valve respectively, through setting up the control valve, is convenient for control the waste liquid volume that gets into the reaction tank to and the reaction dwell time of waste liquid volume, its structural design is simple, and control is convenient.
Specifically, when the treatment system of the present application is used, the ph value of the stock solution entering the ferric reaction tank 2 is adjusted to 6, then ferric iron, specifically ferric sulfate or ferric chloride, is added, and the dosage is controlled to be Fe: p is 1: 1.2-1.5, the reaction time is 15min-20min, the reaction step can lead 80% of phosphorous in the waste liquid to form ferric phosphite, the ferric phosphite is precipitated and removed in a first sedimentation tank 3, the supernatant in the first sedimentation tank 3 enters an electro-Fenton reaction tank 4, wherein the anode and the cathode of the electro-Fenton reactor are both iron plates, the power supply of the electro-Fenton reactor adopts a reversed pole power supply, the reversed pole time is 5-20min, the retention time is 25-30min, the nickel and the phosphorus are further removed by reaction, then the pH value of the waste liquid is adjusted to 11 by adding lime, after the impurities are removed by precipitation in a second sedimentation tank 5, the total nickel in water is less than 0.1mg/L and the total phosphorus in water is less than 10mg/L, in order to further remove the nickel and the phosphorus in the waste water, the supernatant in the second sedimentation tank 5 can be continuously sent to a biochemical treatment tank 7, after the biochemical treatment, the total phosphorus in the effluent is less than 0.5mg/L, the total nickel is less than 0.1mg/L, thereby realizing the full-index discharge of the chemical nickel plating rinsing water.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. The utility model provides a chemical nickel plating rinsing water processing system, its characterized in that includes stock solution pond, ferric iron reaction tank, first sedimentation tank, electro-Fenton reaction tank, second sedimentation tank and the play pond that communicates in proper order through the pipeline, the stock solution pond with be equipped with the ph surge chamber in the electro-Fenton reaction tank respectively, ferric iron reaction tank with the electro-Fenton reaction tank is equipped with the doser respectively.
2. An electroless nickel rinsing water treatment system as claimed in claim 1, wherein a biochemical treatment tank is provided between said second sedimentation tank and said water outlet tank.
3. An electroless nickel plating rinse water treatment system according to claim 1, wherein said electro-Fenton reaction tank is provided with a Fenton reactor.
4. An electroless nickel rinsing water treatment system according to claim 3, wherein the anode and cathode of said electro-Fenton reactor are respectively provided as iron plates.
5. An electroless nickel plating rinse water treatment system according to claim 3, wherein the electro-Fenton reaction tank is provided with an electro-Fenton reactor, an anode and a cathode of the electro-Fenton reactor are both iron plates, and a power supply of the electro-Fenton reactor adopts an inverted power supply.
6. An electroless nickel rinsing water treatment system as claimed in claim 1, wherein a ph doser is connected to said ph adjustment chamber.
7. An electroless nickel plating rinse water treatment system according to claim 1, wherein said first sedimentation tank bottom and said second sedimentation tank bottom are respectively provided with a sewage discharge outlet.
8. An electroless nickel plating rinse water treatment system according to claim 1, wherein a control valve is respectively provided on a pipeline between said stock solution tank and said ferric iron reaction tank and a pipeline between said first sedimentation tank and said electro-Fenton reaction tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122827256.8U CN216584635U (en) | 2021-11-18 | 2021-11-18 | Chemical nickel plating rinsing water treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122827256.8U CN216584635U (en) | 2021-11-18 | 2021-11-18 | Chemical nickel plating rinsing water treatment system |
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| Publication Number | Publication Date |
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| CN216584635U true CN216584635U (en) | 2022-05-24 |
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| CN202122827256.8U Active CN216584635U (en) | 2021-11-18 | 2021-11-18 | Chemical nickel plating rinsing water treatment system |
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Address after: Room 1201, building 1, Nanfeng business center, 106 Hongfu Road, Nancheng street, Dongguan City, Guangdong Province, 523000 Patentee after: Guangdong Yifeng Huachuang Environmental Protection Group Co.,Ltd. Address before: Room 1201, building 1, Nanfeng business center, 106 Hongfu Road, Nancheng street, Dongguan City, Guangdong Province, 523000 Patentee before: Guangdong Yifeng environmental protection group Co.,Ltd. |