CN218709464U - Electric energy driven microelectrode-ionic membrane coupled water treatment equipment - Google Patents
Electric energy driven microelectrode-ionic membrane coupled water treatment equipment Download PDFInfo
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- CN218709464U CN218709464U CN202223070450.7U CN202223070450U CN218709464U CN 218709464 U CN218709464 U CN 218709464U CN 202223070450 U CN202223070450 U CN 202223070450U CN 218709464 U CN218709464 U CN 218709464U
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Abstract
The utility model provides an electric energy driven microelectrode-ionic membrane coupled water treatment equipment, which belongs to the technical field of sewage treatment. The utility model comprises a reaction chamber, a cathode electrode plate, an anode electrode plate, an anion exchange membrane, a cation exchange membrane and a particle electrode are arranged in the reaction chamber, the cation exchange membrane and the anion exchange membrane are alternately arranged between the cathode electrode plate and the anode electrode plate and divide the inner space of the reaction chamber into a plurality of concentrated water chambers and raw water chambers, the particle electrode is filled in the concentrated water chambers and the raw water chambers, and separation nets are respectively arranged between the particle electrode and the cation exchange membrane and between the particle electrode and the anion exchange membrane; the anode electrode plate and the cathode electrode plate are connected to a power supply. The utility model can carry out the reactions of desalting and removing organic matters in the same step under the power supply of the same power supply, thereby saving the operation cost such as power consumption and the like and saving the occupied area; can reduce the pollution of organic matters to the ionic membrane, prolong the cleaning period and the service life of the membrane and improve the degradation efficiency of the organic matters.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment, concretely relates to electric energy driven microelectrode-ionic membrane coupled water treatment facilities.
Background
With the gradual increase of the industrialization level of China, various industries generate a large amount of high-organic matter and high-salinity wastewater, such as printing and dyeing, spinning, electroplating, medicine and the like. If the waste water is not treated properly, the environment is seriously polluted, and recoverable salt resources are wasted. The prior high-salt organic wastewater is treated by adopting the processes of pretreatment, biochemistry, membrane filtration, advanced oxidation, evaporation and the like, but has the following problems: high salinity can inhibit the growth of microorganisms, high organic matters can block membrane pores to cause membrane pollution or scaling of evaporation equipment, fenton oxidation generates a large amount of sludge, an electrocatalytic oxidation technology polar plate is easy to scale, the mass transfer efficiency is limited, and the like. The industrial wastewater has complex components and high organic matter content, is mostly heterocyclic and humic acid macromolecular organic matters, and part of the organic matters have certain charges, so that a pressure-driven or electric-driven membrane is easy to generate membrane pollution to influence the stability of continuous operation of equipment.
In patent application publication No. CN202110183224.0, an electrocatalytic oxidation-electrodialysis coupled treatment system and applications thereof are disclosed, which treat industrial wastewater by constructing a electrochemical coupled treatment system with multiple groups of electrocatalytic electrodes and electrodialysis membrane stacks alternately combined. However, since hydroxyl radicals can only be generated near the anode and the stability is poor, the reaction can only be generated near the electrode region in the application, and the degradation efficiency of organic matters at other parts is poor, thereby greatly limiting the oxidation efficiency. And raw water is directly introduced into the polar plate, and high-concentration organic matters can scale the polar plate, increase the polar plate replacement frequency and improve the operating cost.
SUMMERY OF THE UTILITY MODEL
To the technical problem mentioned above, the utility model provides an electric energy driven microelectrode-ionic membrane coupled water treatment device, which solves the technical problems that the membrane is easily polluted by organic matters and the electrocatalytic oxidation efficiency is low.
The technical scheme of the utility model as follows:
an electric energy driven microelectrode-ion membrane coupled water treatment device comprises a reaction chamber, wherein a cathode electrode plate, an anode electrode plate, an anion exchange membrane, a cation exchange membrane and a particle electrode are arranged in the reaction chamber, the anion exchange membrane and the cation exchange membrane are respectively provided with a plurality of anion exchange membranes, the cation exchange membranes and the anion exchange membranes are alternately arranged between the cathode electrode plate and the anode electrode plate, the cation exchange membranes and the anion exchange membranes divide the inner space of the reaction chamber into a plurality of concentrated water chambers and raw water chambers, the concentrated water chambers and the raw water chambers are alternately distributed, the concentrated water chambers are connected with concentrated water inlet pipes and concentrated water outlet pipes, the raw water chambers are connected with raw water inlet pipes and water production pipes, the particle electrode is filled in the concentrated water chambers and the raw water chambers, and separation nets are respectively arranged between the particle electrode and the cation exchange membrane and between the particle electrode and the anion exchange membrane; the anode electrode plate and the cathode electrode plate are connected to a power supply.
Furthermore, the anode electrode plate is a titanium-based coating electrode or a carbon-based electrode or a metal electrode.
Further, the cathode electrode plate is a carbon-based electrode or a metal electrode.
Further, the anion exchange membrane and the cation exchange membrane are homogeneous membranes or selective ion exchange membranes.
Further, the power supply is a direct current power supply or a pulse power supply.
Further, the particle electrode is metal particles or composite oxide particles or activated carbon particles.
Further, the density of the particle electrode is not more than 1 x 10 3 kg/m 3 。
Furthermore, the separation net is a woven plastic net, and the aperture of the separation net is smaller than the diameter of the particle electrode.
Compared with the prior art, the utility model discloses the beneficial effect who has does:
1. by carrying out the reactions of desalting and removing organic matters in the same step under the power supply of the same power supply, the operating cost such as power consumption and the like can be saved, and the occupied area of the reaction device is saved.
2. The organic matter is oxidized and decomposed by utilizing the particle electrodes, the pollution of the organic matter to the ionic membrane can be reduced, the cleaning period of the membrane is prolonged, the service life of the membrane is prolonged, the particle electrodes dispersed among the membranes can form countless micro electrolytic cells, the contact area with the organic matter is increased, and compared with the traditional method that the organic matter is degraded only by means of electrode reaction, the efficiency is obviously improved.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
In the figure: the device comprises a cathode electrode plate 1, an anode electrode plate 2, an anion exchange membrane 3, a cation exchange membrane 4, a power supply 5, a particle electrode 6, a separation net 7, a concentrated water chamber 8, a concentrated water inlet pipe 80, a concentrated water outlet pipe 81, a raw water chamber 9, a raw water inlet pipe 90, a water production pipe 91 and a reaction chamber 10.
Detailed Description
The technical solution in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides an electric energy driven microelectrode-ionic membrane coupled water treatment device, which includes a reaction chamber 10, a cathode electrode plate 1, an anode electrode plate 2, an anion exchange membrane 3, a cation exchange membrane 4 and a particle electrode 6 are disposed inside the reaction chamber 10, the cathode electrode plate 1 can be a carbon-based electrode or a metal electrode, and the anode electrode plate 2 can be one of a titanium-based coated electrode, a carbon-based electrode and a metal electrode; the anion exchange membranes 3 and the cation exchange membranes 4 are respectively provided with a plurality of anion exchange membranes 3 and cation exchange membranes 4, the anion exchange membranes 3 and the cation exchange membranes 4 can adopt homogeneous membranes or selective ion exchange membranes, the cation exchange membranes 4 and the anion exchange membranes 3 are alternately arranged between the cathode electrode plate 1 and the anode electrode plate 2, the reaction chamber 10 is divided into a plurality of concentrated water chambers 8 and raw water chambers 9 by the plurality of cation exchange membranes 4 and the anion exchange membranes 3, the concentrated water chambers 8 and the raw water chambers 9 are alternately distributed, the concentrated water chambers 8 are connected with concentrated water inlet pipes 80 and concentrated water outlet pipes 81, the raw water chambers 9 are connected with raw water inlet pipes 90 and water production pipes 91, the particle electrodes 6 are filled in the concentrated water chambers 8 and the raw water chambers 9, and separation nets 7 are arranged between the particle electrodes 6 and the cation exchange membranes 4 and between the particle electrodes and the anion exchange membranes 3, and the separation nets 7 can prevent the particle electrodes 6 from rubbing with the membranes when flowing to damage the ion membranes; the particle electrode 6 can adopt metal particles or composite oxide particles or activated carbon particles, and the particles filled in the concentrated water chamber 8 or the raw water chamber 9 can be excited into micro electrodes under the driving of electric energy; the anode electrode plate 2 and the cathode electrode plate 1 are connected to a power supply 5, so that an electric field is formed between the anode electrode plate 2 and the cathode electrode plate 1; the power supply 5 may be a dc power supply or a pulse power supply.
In order to ensure that all the particle electrodes 6 can maintain a fluidized state in the process of water inlet and outlet, strengthen the contact between solid and liquid and improve the oxidation efficiency, the density of the particle electrodes 6 is not more than 1 x 10 3 kg/m 3 (ii) a The separating net 7 is a woven plastic net, and in order to prevent the particle electrode 6 from penetrating through the separating net 7 to be in contact with the membrane, the aperture of the separating net 7 needs to be smaller than the diameter of the particle electrode 6.
The utility model provides an electric energy driven microelectronics-ionic membrane coupled water treatment facilities is when specifically using, let in concentrated hydroecium 8 and former hydroecium 9 with concentrated water and raw water through concentrated water inlet tube 80 and raw water inlet tube 90 respectively, under the effect of electric field force, negative and positive ions in the former hydroecium 9 see through anion exchange membrane 3 and cation exchange membrane 4 respectively from former hydroecium 9 and get into concentrated hydroecium 8, organic matter concentration is higher in the former hydroecium 9, along with the ion migration, some micromolecule organic matter also can enter into in the concentrated hydroecium 8 through the membrane, because the existence of granule electrode 6 in each reacting chamber, organic matter in raw water and the concentrated water carries out redox reaction on the microelectrode, macromolecule organic matter in the former hydroecium 9 decomposes into the micromolecule organic matter or directly produces carbon dioxide and water, the micromolecule of coming by former hydroecium 9 migration in the concentrated hydroecium 8 is also decomposed progressively. Under the system, salt and organic matters are efficiently removed synchronously, and a strand of low-organic matter high-salt concentrated water and a strand of low-organic matter low-salt produced water are formed. The concentrated water can be further evaporated after being discharged from the concentrated water chamber 8, the phenomenon that the evaporator is scaled by the existing matters is avoided, and the produced water discharged from the raw water chamber 9 directly reaches the standard to be discharged or is further processed by a membrane according to the discharge standard.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.
Claims (8)
1. An electrically powered microelectrode-ionomeric membrane coupled water treatment device comprising a reaction chamber (10), characterized in that: a cathode electrode plate (1), an anode electrode plate (2), an anion exchange membrane (3), a cation exchange membrane (4) and a particle electrode (6) are arranged in the reaction chamber (10), the anion exchange membrane (3) and the cation exchange membrane (4) are respectively provided with a plurality of cation exchange membranes (4) and a plurality of anion exchange membranes (3) which are alternately arranged between the cathode electrode plate (1) and the anode electrode plate (2), the cation exchange membranes (4) and the anion exchange membranes (3) divide the inner space of the reaction chamber (10) into a plurality of concentrated water chambers (8) and raw water chambers (9), the concentrated water chambers (8) and the raw water chambers (9) are alternately distributed, the concentrated water chambers (8) are connected with a concentrated water inlet pipe (80) and a concentrated water outlet pipe (81), the raw water chambers (9) are connected with a water inlet pipe (90) and a water production pipe (91), the particle electrode (6) is filled in the concentrated water chambers (8) and the raw water chambers (9), and a mesh (7) is respectively arranged between the particle electrode (6) and the cation exchange membrane (4) and the anion exchange membranes (3); the anode electrode plate (2) and the cathode electrode plate (1) are connected to a power supply (5).
2. The electric-powered microelectrode-ionomeric membrane coupled water treatment device of claim 1, wherein: the anode electrode plate (2) is a titanium-based coating electrode or a carbon-based electrode or a metal electrode.
3. The electric-powered microelectrode-ionomeric membrane coupled water treatment device of claim 1, wherein: the cathode electrode plate (1) is a carbon-based electrode or a metal electrode.
4. The electric-powered microelectrode-ionomeric membrane coupled water treatment device of claim 1, wherein: the anion exchange membrane (3) and the cation exchange membrane (4) are homogeneous membranes or selective ion exchange membranes.
5. The electric-powered microelectrode-ionomeric membrane coupled water treatment device of claim 1, wherein: the power supply (5) is a direct current power supply or a pulse power supply.
6. The electric-powered microelectrode-ionomeric membrane coupled water treatment device of claim 1, wherein: the particle electrode (6) is metal particles or composite oxide particles or activated carbon particles.
7. The electric-powered microelectrode-ionomeric membrane coupled water treatment device of claim 1, wherein: the density of the particle electrode (6) is not more than 1 x 10 3 kg/m 3 。
8. The electric-powered microelectrode-ionomeric membrane coupled water treatment device of claim 1, wherein: the separation net (7) is a woven plastic net, and the aperture of the separation net (7) is smaller than the diameter of the particle electrode (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223070450.7U CN218709464U (en) | 2022-11-18 | 2022-11-18 | Electric energy driven microelectrode-ionic membrane coupled water treatment equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202223070450.7U CN218709464U (en) | 2022-11-18 | 2022-11-18 | Electric energy driven microelectrode-ionic membrane coupled water treatment equipment |
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| CN218709464U true CN218709464U (en) | 2023-03-24 |
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| CN202223070450.7U Active CN218709464U (en) | 2022-11-18 | 2022-11-18 | Electric energy driven microelectrode-ionic membrane coupled water treatment equipment |
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