CN215855263U - Device for purifying sewage by electrocatalysis - Google Patents
Device for purifying sewage by electrocatalysis Download PDFInfo
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- CN215855263U CN215855263U CN202122175007.5U CN202122175007U CN215855263U CN 215855263 U CN215855263 U CN 215855263U CN 202122175007 U CN202122175007 U CN 202122175007U CN 215855263 U CN215855263 U CN 215855263U
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Abstract
The utility model discloses a device for purifying sewage by electrocatalysis, comprising: the electrolytic cell comprises an electrode plate, a direct-current power supply, electrolytic fillers and a bearing box body; the electrode plate includes: a positive plate and a negative plate; the positive plate is connected with the positive output end of the direct current power supply, and the negative plate is connected with the negative output end of the direct current power supply; the positive plates and the negative plates are alternately arranged at intervals in the bearing box body along the liquid flowing direction; the electrolytic filler is disposed between the adjacent positive and negative electrode plates. This scheme simple structure, controllability are strong, need not add the oxidant at the in-process of handling sewage, and energy efficiency is high, and reaction condition is mild, has the flocculation and precipitation effect concurrently.
Description
Technical Field
The utility model relates to the technical field of environmental protection, in particular to a device for purifying sewage by electrocatalysis.
Background
The common sewage treatment methods include a physical and chemical method, a biochemical method, an advanced oxidation method and the like, wherein the biochemical method is the mainstream at present. With the rapid development of economy in China, a large number of factories and farms are built around cities and towns, the problem of water pollution in rural areas is more and more serious, and most of sewage generated in the areas cannot be discharged into a sewage collecting pipe network for centralized treatment. Small-sized distributed sewage treatment stations are generally built nearby, and the small-sized sewage treatment stations adopting a biochemical method have the problems of poor impact load resistance, poor phosphorus removal effect, high operation cost, difficulty in treating industrial sewage and high-concentration aquaculture sewage by a biochemical reaction system and the like because of small system capacity and simplified process.
The technology for treating sewage by the electrocatalysis method starts in the 40 th century, and as an environment-friendly technology, the electrocatalysis method has many advantages compared with other technologies. However, the development is slow due to high energy consumption, high cost and the like.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a device for purifying sewage by electrocatalysis, which has the advantages of simple structure, flexible operation process, strong controllability and easy automation.
In order to achieve the purpose, the utility model provides the following technical scheme:
an apparatus for electrocatalytic purification of wastewater comprising: the electrolytic cell comprises an electrode plate, a direct-current power supply, electrolytic fillers and a bearing box body;
the electrode plate includes: a positive plate and a negative plate; the positive plate is connected with the positive output end of the direct current power supply, and the negative plate is connected with the negative output end of the direct current power supply; the positive plates and the negative plates are alternately arranged at intervals in the bearing box body along the liquid flowing direction;
the electrolytic filler is disposed between the adjacent positive and negative electrode plates.
Preferably, the positive plate and the negative plate are respectively provided with water through holes;
and the water passing holes adjacent to the positive plate and the negative plate are arranged in a staggered manner.
Preferably, the water holes adjacent to the positive electrode plate and the negative electrode plate are respectively located at both sides in the horizontal direction.
Preferably, the number of the water passing holes is multiple, and the heights of the water passing holes in two adjacent lines are different.
Preferably, the inner wall of the bearing box body is used for fixing the clamping groove of the electrode plate.
Preferably, the positive plate is a metal plate, and/or the negative plate is a graphite plate.
Preferably, the electrolytic fillers are provided in a string between the adjacent positive electrode plate and the adjacent negative electrode plate.
Preferably, the electrolytic filler is an iron carbon filler.
Preferably, the material of the bearing box body is organic glass, plastic or steel plate.
Preferably, the bearing box body is further provided with a settling zone, and the settling zone is positioned at the downstream of the electrode plate;
the settling zone is connected with the water outlet of the bearing box body in an overflowing manner.
According to the technical scheme, the device for purifying the sewage by electrocatalysis has the advantages of simple structure, strong controllability, no need of adding an oxidant in the sewage treatment process, high energy efficiency, mild reaction conditions and flocculation and precipitation functions. The device has flexible process design, can independently form a sewage treatment unit, can be connected with other water treatment processes in series for operation, can be coupled and integrated into integrated treatment equipment, and solves the problems of poor impact load resistance, poor phosphorus removal effect, high operation cost, difficult treatment of toxic and harmful industrial sewage and high-concentration aquaculture sewage in a biochemical reaction system and the like in the conventional small biochemical treatment equipment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic front view of an apparatus for purifying sewage by electrocatalysis provided in an embodiment of the present invention;
FIG. 2 is a schematic top view of an apparatus for purifying sewage by electrocatalysis provided in the embodiment of the present invention;
FIG. 3 is a schematic sectional view of an apparatus for purifying sewage by electrocatalysis provided in an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an electrode plate according to an embodiment of the present invention.
Wherein 10 is an electrode plate, 11 is a positive plate, 12 is a negative plate, and 13 is an air passing hole;
20 is a direct current power supply, 21 is a negative electrode output end, and 22 is a positive electrode output end;
30 is electrolytic filler;
40 is a bearing box body, and 41 is a water outlet.
Detailed Description
The utility model discloses a device for purifying sewage by electrocatalysis, which comprises a metal electrode plate, a graphite electrode plate, a direct current power supply, iron carbon filler, a bearing box body and the like, wherein the box body can be made of organic glass, plastic, steel plates and the like, and the electrode plate and the iron carbon filler are arranged in the box body. The positive output end of the direct current power supply is connected with the metal electrode plates through cables, the negative output end of the direct current power supply is connected with the graphite electrode plates through cables, the iron-carbon fillers are arranged between the electrode plates in a string shape, and the voltage and the current output by the direct current power supply can be adjusted to adapt to the operation conditions of different water quality, water quantity and the like.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The device for purifying sewage by electrocatalysis provided by the embodiment of the utility model comprises: the electrolytic cell comprises an electrode plate 10, a direct current power supply 20, electrolytic fillers 30 and a bearing box body 40; the structure of which can be seen in fig. 1 and 2;
wherein, electrode plate 10 includes: a positive electrode plate 11 and a negative electrode plate 12; the positive plate 11 is connected with a positive output end 22 of the direct current power supply 20, and the negative plate 12 is connected with a negative output end 21 of the direct current power supply 20; the positive plates 11 and the negative plates 12 are alternately installed at intervals in the flow direction of the liquid in the bearing box 40;
the electrolytic filler 30 is provided between the adjacent positive electrode plate 11 and negative electrode plate 12.
According to the technical scheme, the sewage enters the device from the front end, flows along the electrode plate and fully contacts with the electrode plate 10 and the electrolytic filler 30, under the condition of electrocatalysis, a plurality of strong oxidizing substances and metal ions are generated in a reaction system, the strong oxidizing substances and pollutants in a water body undergo a rapid oxidation reaction, and the metal ions form electrocoagulation to accelerate precipitation, so that the pollutants are decomposed and precipitated and removed. After being purified by sufficient electrocatalysis reaction, the waste water is discharged from the back end.
Preferably, the positive electrode plate 11 and the negative electrode plate 12 are respectively provided with water through holes 13; the structure of which can be seen in fig. 3 and 4;
the water holes 13 of the adjacent positive plates 11 and the negative plates 12 are staggered, so that water flows annularly along the electrode plates 10, the contact time is prolonged, and the oxidation reaction effect is improved.
Specifically, the water passing holes 13 of the adjacent positive electrode plate 11 and negative electrode plate 12 are respectively located at both sides in the horizontal direction, so that the water passing holes 13 are located at both left and right sides in the liquid flowing direction.
Furthermore, the number of the water holes 13 is multiple, and the heights of the water holes 13 in two adjacent rows are different. So set up, can promote the intensive mixing of liquid in the flow process.
In this embodiment, the inner wall of the carrying case 40 is used to fix the engaging groove of the electrode plate 10. As shown in fig. 3 and 4, the water holes 13 are formed in the side edges of the electrode plates 10, and two adjacent electrode plates 10 are installed in opposite directions, so that the staggered structure is realized, and the detachable structure is convenient to maintain.
Preferably, the positive plate 11 is a metal plate, the metal electrode material has good conductivity and catalytic activity, and under the condition of electrocatalysis, a plurality of strong oxidizing substances and metal ions are generated in the reaction system;
and/or negative plate 12 is a graphite plate.
Further, the electrolytic fillers 30 are arranged between the adjacent positive electrode plates 11 and negative electrode plates 12 in a string shape to shorten the distance between the fillers, thereby increasing the mass transfer speed of the substance, and improving the current efficiency, thereby effectively improving the degradation efficiency of the organic matter. The structure of which can be seen in fig. 1 and 2. Further, a plurality of strings of the electrolytic fillers 30 are formed in a sheet shape to match the shape of the electrode plate 10.
Specifically, the electrolytic filler 30 is an iron-carbon filler. The iron-carbon filler is formed by sintering iron or other metals and carbon at high temperature, and can generate potential difference under the action of a polar plate electric field, so that a plurality of micro-battery systems are formed, and Fe generated by an anode2+Has strong reducing ability, and can cause the chain breaking, ring opening and other effects of organic matters. Fe2+Is oxidized into Fe3+，Fe2+And Fe3+Are good flocculating agents and have strong adsorption-coagulation effects on micro particles and organic macromolecules.
The load-bearing box 40 may be made of various materials, and is easy and simple to manufacture and install, such as organic glass, plastic or steel plate.
In this embodiment, the carrying case 40 is further provided with a settling zone, which is located downstream of the electrode plate 10; the structure can be shown in fig. 1 and fig. 2, sewage enters the device from the front end, passes through the electrocatalysis zone where the electrode plate 10 and the electrolytic filler 30 are located, and overflows into the precipitation zone;
the settling zone is connected to the outlet 41 of the carrying case 40 in an overflow manner.
The present solution is further described below with reference to specific embodiments:
the device for purifying sewage by electrocatalysis is composed of a metal polar plate, a graphite polar plate, a direct current power supply, iron-carbon filler, a bearing box body and the like. The metal electrode material has good conductivity and catalytic activity, under the condition of electrocatalysis, various strong oxidizing substances and metal ions are generated in a reaction system, the strong oxidizing substances and pollutants in a water body are subjected to rapid oxidation reaction, the metal ions form electric flocculation, and precipitation is accelerated, so that the pollutants are decomposed and precipitated.
The output voltage and current of the direct current power supply are adjustable, the flexibility is increased for the operation process, and the direct current power supply has multiple protections of short circuit, overheating, overvoltage, overload and the like, and is safe and reliable.
The iron-carbon filler is formed by sintering iron or other metals and carbon at high temperature, and can generate potential difference under the action of a polar plate electric field, so that a plurality of micro-battery systems are formed, and Fe generated by an anode2+Has strong reducing ability, and can cause the chain breaking, ring opening and other effects of organic matters. Fe2+Is oxidized into Fe3+，Fe2+And Fe3+Are good flocculating agents and have strong adsorption-coagulation effects on micro particles and organic macromolecules.
The device for purifying sewage by electrocatalysis has the advantages of simple structure, flexible operation process, strong controllability and easy automation. The utility model has better treatment effect on industrial papermaking sewage, electroplating sewage, acid sewage, breeding sewage and the like which are difficult to treat by a biochemical method.
Compared with the existing electrochemical treatment equipment, the device has higher surface area ratio, increases the mass transfer speed of substances due to small space between the filling materials, and improves the current efficiency so as to effectively improve the degradation efficiency of organic matters. The equipment is relatively simple and compact, the occupied area is small, the filler does not need regeneration treatment for a long time, the operation cost is low, the control is easy, and the industrialization is convenient to realize. When in use, no chemical agent is needed to be added, the post-treatment is simple, and no or little secondary pollution is generated.
As shown in fig. 1-4, an apparatus for purifying sewage by electrocatalysis comprises a metal electrode plate, a graphite electrode plate, a direct current power supply, an iron-carbon filler, and a bearing box, wherein the metal electrode plate, the graphite electrode plate and the iron-carbon filler are arranged in the bearing box, and a clamping groove is arranged on the inner wall of the box for fixing the electrode plate. The side of the electrode plates is provided with water holes, two adjacent electrode plates are reversely installed, so that the water holes are positioned at two different sides, and the water body circularly flows along the electrode plates.
Inside the sewage from front end access device, flow along the plate electrode, fully contact with plate electrode and iron carbon filler, under the condition of electrocatalysis, produce multiple strong oxidizing substance and metal ion in the reaction system, the fast oxidation reaction takes place for the pollutant in strong oxidizing substance and the water, and metal ion forms the electric flocculation, deposits with higher speed to decompose pollutant and deposit and get rid of. After being fully purified by electrocatalysis reaction, the wastewater overflows from the back end and is discharged.
In conclusion, the innovation points to be protected by the utility model are as follows:
1. the metal polar plate, the graphite polar plate and the iron-carbon filler are combined and applied, and the three are reasonably combined in spatial distribution.
2. The device has simple structure and flexible process design, can be used independently, and can also be used in parallel with other devices or integrated into the interior of other sewage treatment devices.
3. The operation process is flexible, the output voltage, the output power and the like of the power supply can be adjusted according to different water quality and water quantity, and high efficiency and energy conservation are achieved.
4. The equipment bearing box body can be made of various materials, and is simple and convenient to manufacture and install.
5. Different pole plate materials can be selected according to different types of water quality of incoming water, such as domestic sewage, industrial sewage, breeding sewage and the like.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. 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 utility model. Thus, the present invention 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.
Claims (10)
1. An apparatus for electrocatalytic purification of wastewater, comprising: the electrolytic cell comprises an electrode plate (10), a direct current power supply (20), electrolytic fillers (30) and a bearing box body (40);
the electrode plate (10) includes: a positive electrode plate (11) and a negative electrode plate (12); the positive plate (11) is connected with a positive output end (22) of the direct current power supply (20), and the negative plate (12) is connected with a negative output end (21) of the direct current power supply (20); the positive plates (11) and the negative plates (12) are alternately installed at intervals in the liquid flowing direction in the bearing box body (40);
the electrolytic filler (30) is provided between the adjacent positive electrode plate (11) and the adjacent negative electrode plate (12).
2. The apparatus for purifying polluted water by electrocatalysis as claimed in claim 1, wherein the positive electrode plate (11) and the negative electrode plate (12) are respectively opened with a water through hole (13);
the water passing holes (13) of the adjacent positive plate (11) and the adjacent negative plate (12) are staggered.
3. An apparatus for electrocatalytic purification of wastewater as set forth in claim 2, wherein the water through holes (13) adjacent to the positive electrode plate (11) and the negative electrode plate (12) are respectively located at both sides in the horizontal direction.
4. The apparatus for electro-catalytic purification of wastewater as set forth in claim 2, wherein the number of the water through holes (13) is plural, and the heights of the water through holes (13) in two adjacent rows are different.
5. The apparatus for electro-catalytic purification of wastewater according to claim 1, wherein the inner wall of the carrying case (40) is used for fixing the clamping groove of the electrode plate (10).
6. An apparatus for electrocatalytic purification of wastewater according to claim 1, wherein said positive electrode plates (11) are metal plates and/or said negative electrode plates (12) are graphite plates.
7. An apparatus for electrocatalytic purification of wastewater as set forth in claim 1, wherein said electrolytic fillers (30) are disposed in a string between said adjacent positive electrode plate (11) and said negative electrode plate (12).
8. The apparatus for electrocatalytic purification of wastewater as set forth in claim 1, wherein said electrolytic filler (30) is an iron-carbon filler.
9. The apparatus for electro-catalytic purification of wastewater as set forth in claim 1, wherein the material of the carrying case (40) is organic glass, plastic or steel plate.
10. An apparatus for electrocatalytic purification of wastewater according to claim 1, wherein said carrying case (40) is further provided with a settling zone downstream of said electrode plates (10);
the sedimentation zone is connected with a water outlet (41) of the bearing box body (40) in an overflowing way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122175007.5U CN215855263U (en) | 2021-09-09 | 2021-09-09 | Device for purifying sewage by electrocatalysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122175007.5U CN215855263U (en) | 2021-09-09 | 2021-09-09 | Device for purifying sewage by electrocatalysis |
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| Publication Number | Publication Date |
|---|---|
| CN215855263U true CN215855263U (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122175007.5U Active CN215855263U (en) | 2021-09-09 | 2021-09-09 | Device for purifying sewage by electrocatalysis |
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| CN (1) | CN215855263U (en) |
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2021
- 2021-09-09 CN CN202122175007.5U patent/CN215855263U/en active Active
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