CN211847272U - Titanium electrode advanced catalytic device for improving biodegradability of electroplating wastewater - Google Patents
Titanium electrode advanced catalytic device for improving biodegradability of electroplating wastewater Download PDFInfo
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- CN211847272U CN211847272U CN201922387066.1U CN201922387066U CN211847272U CN 211847272 U CN211847272 U CN 211847272U CN 201922387066 U CN201922387066 U CN 201922387066U CN 211847272 U CN211847272 U CN 211847272U
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Abstract
A titanium electrode advanced catalytic device for improving the biodegradability of electroplating wastewater comprises a cathode and anode assembly and an electrolytic bath; the cathode and anode assembly is positioned in the electrolytic bath, one end of the cathode and anode assembly is welded with a first flange, and the other end of the cathode and anode assembly is welded with a second flange; a first conductive column is welded on the first flange; a second conductive column is welded on the second flange; a first sealing assembly is arranged between the first conductive column and the first flange and is connected with the electrolytic cell through a bolt; a second sealing assembly is arranged between the second conductive column and the second flange and is connected with the electrolytic cell through bolts; compared with the traditional square tank design, the titanium electrode device has higher electro-catalysis performance and smaller floor area, and is beneficial to converting organic amine which is difficult to be biochemically generated in the nickel-zinc electroplating wastewater into ammonia nitrogen, and the ammonia nitrogen is increased to 93.25mg/L from the initial 17.66mg/L after 3 hours of electrolysis, so that the biodegradability of the electroplating wastewater is improved.
Description
Technical Field
The utility model belongs to the field of electrocatalytic oxidation water treatment, in particular to a titanium electrode advanced catalytic device for improving the biodegradability of electroplating wastewater.
Background
The sources of the electroplating wastewater are generally: the main components of the electroplating solution are metal salts and complexing agents, including sulfates, chlorides, fluoborates of various metals, cyanides, ammonium chloride, triethanolamine, nitrilotriacetic acid, pyrophosphates and organic phosphonic acids of various metals.
In addition, in order to improve the coating properties, certain organic compounds, such as coumarins, butynediols, thioureas as leveling agents, saccharin, vanillin, benzalacetone, p-toluenesulfonamide, benzenesulfonic acid as brighteners, are often added to the bath.
The electroplating wastewater has complex water quality and difficult control of components, not only contains various organic amine complexing agents, but also contains part of substances which belong to carcinogenic, teratogenic and mutagenic highly toxic substances.
Thus, there is a pressing need for efficient, low cost techniques for removing these contaminants from wastewater. At present, methods for removing organic amine substances mainly comprise physical and chemical degradation, Fenton oxidation, biological methods and electrochemical degradation, wherein the electrocatalytic oxidation degradation is widely concerned as a feasible, effective, economic and simple operation method.
The novel electrolytic method for treating the wastewater has the advantages of no need of adding chemical agents, small equipment volume, small occupied area and no secondary pollution, is paid much attention, and has been used for treating the wastewater containing organic pollutants of alcohol, aldehyde, phenol and organic amine.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an improve electroplating effluent biochemical nature and use senior catalytic unit of titanium electrode, it has solved traditional biochemical method and has been difficult to the high-efficient problem of getting rid of organic amine.
The utility model aims at solving through the following technical scheme:
a titanium electrode advanced catalytic device for improving the biodegradability of electroplating wastewater comprises a cathode and anode assembly and an electrolytic bath;
the cathode and anode assembly is positioned in the electrolytic cell, a first flange is welded at one end of the cathode and anode assembly, and a second flange is welded at the other end of the cathode and anode assembly;
a first conductive column is welded on the first flange;
a second conductive column is welded on the second flange;
a first sealing assembly is arranged between the first conductive column and the first flange and is connected with the electrolytic cell through bolts;
and a second sealing assembly is arranged between the second conductive column and the second flange and is connected with the electrolytic cell through bolts.
Further: the top of the electrolytic cell is provided with a water inlet pipeline.
Further: and a water outlet pipeline is arranged at the bottom of the electrolytic tank.
Further: the electrolytic bath is cylindrical.
Further: the electrolytic cell is made of organic glass.
Further: the cathode and anode assembly comprises a plurality of groups of cathodes and anodes, and the plurality of groups of cathodes and the anodes are arranged in a parallel and staggered mode.
Further: the cathode is a titanium cathode or a stainless steel cathode.
Further: the anode adopts a DSA anode or a titanium-based lead dioxide anode or a platinized anode.
Further: and the cathode and anode assembly is provided with an insulating column for separating the cathode from the anode in a penetrating manner.
Further: the cathode and anode assembly is provided with a support frame in a penetrating way and is fixedly connected with the support frame.
Compared with the prior art, the beneficial effect that this application has is: the electroplating wastewater is transmitted into the cylindrical organic glass electrolytic tank through the water inlet pipeline, rises along the inner wall of the electrolytic tank, fully contacts with the cathode and anode assemblies with the conductive columns, and finally flows out of the water outlet pipeline, wherein the sealing assemblies and the like are installed completely; the advanced catalytic equipment converts organic amine which is difficult to be biochemically generated in the nickel-zinc electroplating wastewater into ammonia nitrogen, thereby improving the biodegradability of the electroplating wastewater;
further: the electroplating wastewater is zinc-nickel electroplating wastewater and has high-concentration organic amine which is difficult to degrade biochemically;
further: the cylindrical shape has a large length-diameter ratio, and the contact time of the wastewater and the electrode is prolonged;
further: the titanium electrode has good electrocatalysis performance, and can convert organic amine which is difficult to be biochemically generated in the nickel-zinc electroplating wastewater into ammonia nitrogen, thereby improving the biodegradability of the electroplating wastewater.
Drawings
Fig. 1 is a diagram of an electrocatalysis device of the present invention.
Wherein: 1. a cathode and anode assembly; 2. an electrolytic cell; 3. a first flange; 4. a first conductive post; 5. a second flange; 6. a second conductive post; 7. a first seal assembly; 8. a second seal assembly; 9. a water inlet pipe; 10. a water outlet pipeline; 11. an insulating column; 12. a support frame.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings:
as shown in figure 1, the titanium electrode advanced catalytic device for improving the biodegradability of electroplating wastewater comprises a cathode-anode assembly 1 and an electrolytic bath 2.
The cathode and anode assembly 1 is positioned in the electrolytic tank 2, a first flange 3 is welded at one end of the cathode and anode assembly 1, and a second flange 5 is welded at the other end of the cathode and anode assembly 1.
The welding has first leading electrical pillar 4 on first flange 3, and the welding has the second to lead electrical pillar 6 on second flange 5, and first leading electrical pillar 4 and second are led electrical pillar 6 and are used for connecting wire.
A first sealing assembly 7 is arranged between the first conductive column 4 and the first flange 3, and the first sealing assembly 7 is connected with the electrolytic cell 2 through bolts.
A second sealing assembly 8 is arranged between the second conductive column 6 and the second flange 5, and the second sealing assembly 8 is connected with the electrolytic cell 2 through bolts.
The first sealing component 7 and the second sealing component 8 are both sealing gaskets.
The top of the electrolytic tank 2 is provided with a water inlet pipeline 9, the bottom of the electrolytic tank 2 is provided with a water outlet pipeline 10, and the electrolytic tank 2 is cylindrical and made of organic glass.
The cathode and anode assembly 1 comprises a plurality of groups of cathodes and anodes, the cathodes and the anodes are arranged in a parallel and staggered mode, the cathodes are titanium cathodes or stainless steel cathodes, and the anodes are DSA anodes or titanium-based lead dioxide anodes or platinized anodes.
An insulating column 11 for separating the cathode and the anode is arranged on the cathode and anode assembly 1 in a penetrating way, and a support frame 12 is arranged on the cathode and anode assembly 1 in a penetrating way and is fixedly connected with the support frame 12.
The working process is as follows: the electroplating wastewater is transmitted into a cylindrical organic glass electrolytic tank 2 through a water inlet pipeline 9, rises along the inner wall of the electrolytic tank 2, fully contacts with a cathode and anode assembly 1 with a conductive column, and finally flows out of a water outlet pipeline 10, wherein sealing assemblies and the like are installed well; after the power is switched on, the organic amine in the electroplating wastewater is electrically catalyzed and oxidized, and the organic amine which is difficult to be biochemically generated in the nickel-zinc electroplating wastewater is converted into ammonia nitrogen, so that the biodegradability of the electroplating wastewater is improved.
Wherein the electroplating wastewater is zinc-nickel electroplating wastewater and has high-concentration organic amine which is difficult to degrade biochemically.
As shown in the table 1, the titanium electrode device has higher electro-catalysis performance and smaller floor area, and is beneficial to converting organic amine which is difficult to be biochemically generated in the nickel-zinc electroplating wastewater into ammonia nitrogen, and the ammonia nitrogen is increased to 93.25mg/L from the initial 17.66mg/L after 3 hours of electrolysis, so that the biodegradability of the electroplating wastewater is improved.
TABLE 1
According to the embodiment, based on the environmental problems caused by the rapid development of the electroplating industry, organic amine substances in the zinc-nickel electroplating wastewater have biotoxicity, the organic amine substances are difficult to efficiently remove by the traditional biochemical method, however, the organic amine substances can be converted into ammonia nitrogen by the electrocatalytic oxidation method, the biodegradation is facilitated, and the sustainable development of the environment is realized.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
It is to be understood that the present application is not limited to what has been described above, and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (10)
1. A titanium electrode advanced catalytic device for improving the biodegradability of electroplating wastewater, which is characterized in that,
the device comprises a cathode and anode assembly (1) and an electrolytic bath (2);
the cathode and anode assembly (1) is positioned in the electrolytic tank (2), a first flange (3) is welded at one end of the cathode and anode assembly (1), and a second flange (5) is welded at the other end of the cathode and anode assembly (1);
a first conductive column (4) is welded on the first flange (3);
a second conductive column (6) is welded on the second flange (5);
a first sealing assembly (7) is arranged between the first conductive column (4) and the first flange (3), and the first sealing assembly (7) is connected with the electrolytic cell (2) through a bolt;
and a second sealing assembly (8) is arranged between the second conductive column (6) and the second flange (5), and the second sealing assembly (8) is connected with the electrolytic cell (2) through a bolt.
2. The titanium electrode advanced catalytic device for improving the biodegradability of electroplating wastewater as claimed in claim 1, characterized in that the top of the electrolytic bath (2) is provided with a water inlet pipe (9).
3. The titanium electrode advanced catalytic device for improving the biodegradability of electroplating wastewater as claimed in claim 1, characterized in that the bottom of the electrolytic bath (2) is provided with a water outlet pipe (10).
4. The titanium electrode advanced catalytic device for improving the biodegradability of electroplating wastewater according to claim 1, characterized in that the electrolytic bath (2) is cylindrical.
5. The titanium electrode advanced catalytic device for improving the biodegradability of electroplating wastewater according to claim 1, characterized in that the electrolytic bath (2) is made of organic glass.
6. The titanium electrode advanced catalytic device for improving the biodegradability of electroplating wastewater as claimed in claim 1, characterized in that said cathode-anode assembly (1) comprises several groups of cathodes and anodes, said several groups of cathodes and anodes are arranged in parallel and staggered arrangement.
7. The titanium electrode advanced catalytic device for improving the biodegradability of electroplating wastewater according to claim 6, characterized in that the cathode is a titanium cathode or a stainless steel cathode.
8. The titanium electrode advanced catalytic device for improving the biodegradability of electroplating wastewater as claimed in claim 6, wherein said anode is DSA anode or titanium-based lead dioxide anode or platinum-plated anode.
9. The titanium electrode advanced catalytic device for improving the biodegradability of electroplating wastewater as claimed in claim 1, characterized in that the cathode and anode assembly (1) is provided with an insulating column (11) for separating the cathode from the anode.
10. The titanium electrode advanced catalytic device for improving the biodegradability of electroplating wastewater as claimed in claim 1, wherein the cathode and anode assembly (1) is provided with a support frame (12) and fixedly connected with the support frame (12).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111170413A (en) * | 2019-12-26 | 2020-05-19 | 西安泰金工业电化学技术有限公司 | Titanium electrode advanced catalytic device for improving biodegradability of electroplating wastewater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111170413A (en) * | 2019-12-26 | 2020-05-19 | 西安泰金工业电化学技术有限公司 | Titanium electrode advanced catalytic device for improving biodegradability of electroplating wastewater |
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Address after: 710299 No. 15, west section of Xijin Road, Jingwei Industrial Park, Xi'an Economic and Technological Development Zone, Xi'an City, Shaanxi Province Patentee after: Xi'an Taijin Xinneng Technology Co.,Ltd. Address before: No.15, west section of Xijin Road, Jingwei Industrial Park, Xi'an Economic and Technological Development Zone, Xi'an City, Shaanxi Province 710201 Patentee before: XI'AN TAIJIN INDUSTRIAL ELECTROCHEMICAL TECHNOLOGY Co.,Ltd. |
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