CN115520936A - Advanced treatment process and equipment for landfill leachate - Google Patents
Advanced treatment process and equipment for landfill leachate Download PDFInfo
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- CN115520936A CN115520936A CN202211487856.7A CN202211487856A CN115520936A CN 115520936 A CN115520936 A CN 115520936A CN 202211487856 A CN202211487856 A CN 202211487856A CN 115520936 A CN115520936 A CN 115520936A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/4608—Treatment of water, waste water, or sewage by electrochemical methods using electrical discharges
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention provides a landfill leachate advanced treatment process and equipment, belonging to the technical field of sewage treatment, and the landfill leachate advanced treatment process related by the invention can change the space size of a discharge cavity for landfill leachate treatment in real time along with the quantity of landfill leachate to be treated and the speed of the passed landfill leachate, when the flow rate of landfill leachate to be treated is higher, the space of the discharge cavity can be enlarged, and when the flow rate of the landfill leachate to be treated is lower, the space of the discharge cavity can be reduced, so that the landfill leachate can be more thoroughly and completely oxidized, organic matters and ammonia nitrogen in the landfill leachate are more fully degraded, compared with the existing treatment process which can not change the discharge cavity, the landfill leachate can be more thoroughly treated, and the landfill leachate treatment efficiency can be improved.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a process and equipment for advanced treatment of landfill leachate.
Background
The landfill leachate is high-concentration organic wastewater formed by deducting the saturated water holding capacity of garbage and a soil covering layer from the moisture contained in the garbage and rain and snow water or other moisture flowing into the soil when the garbage is placed in the soil, and the garbage leachate is subjected to the garbage layer and the soil covering layer, and the landfill leachate has COD (chemical oxygen demand) and BOD (biochemical oxygen demand) 5 and has high ammonia nitrogen content and the like, so that the treatment of the leachate is difficult. In the existing landfill leachate treatment, besides a biological method and a physical and chemical method, an advanced oxidation technology is evolved, hydroxyl free radicals (. OH) generated in the advanced oxidation technology have strong oxidizability, and have strong oxidation function and mineralization effect on organic matters which are difficult to biodegrade, a novel electric Fenton method is a Fenton system which is formed by adding ferrous ions and hydrogen peroxide or adding iron as an anode and additionally adding hydrogen peroxide due to simple process, flexible operation and low cost, and the two methods need to increase the hydrogen peroxide input cost. In view of the above problems, in the prior art, as shown in patent document 1 (CN 112320882 a), a sewage treatment apparatus is disclosed, which includes a tube body and a cavitation generator disposed inside the tube body, where the cavitation generator forms air through a single-sided closed cylinder with holes at the periphery, and then passes through a discharge chamber between the tube body and the closed cylinder, and a high-frequency high-voltage current breaks down the cavitation bubbles to generate plasma, so as to generate a large amount of active radicals and active substances, and the like, so that the pollutants contacting with the cavitation generator are continuously degraded, thereby achieving the purpose of sewage treatment, but in the treatment apparatus, the size of the discharge chamber 14 is fixed, and the reaction space between the pollutants and the active radicals is only the chamber 14, because the reaction space is very small, the pollutants do not react with the active radicals or the active substances, i.e., pass through the discharge chamber 14, so that the pollutant degradation effect is not good, and there is a risk that the holes are blocked; further, as disclosed in patent document 2 (CN 113045065 a), a sliding arc plasma sewage purification system based on a spiral electrode structure is provided with a conical high-voltage electrode 55 and a ground electrode 52, both the high-voltage electrode and the ground electrode are provided with strip-shaped spiral electrodes, and purification is achieved by an electric field between the high-voltage electrode and the ground electrode through spray from a hollow mist cone, but the electric field space in the present application is also invariable, and generation of bubbles depends on the hollow mist cone, the spray direction thereof is fixed, and the spiral angle of the electrodes is fixed, and cannot be changed in real time according to the amount of fluid to be purified, and when there is a large amount of fluid to be purified, the angle of the spiral electrodes needs to be increased, so that the discharge area can be made denser, and much sewage can be purified well and sufficiently, and thus it is known that the purification efficiency and effect in reference 2 cannot be automatically adapted to the amount of sewage to be purified.
In summary, in the prior art, for the treatment of the landfill leachate, although a discharge plasma advanced oxidation treatment method is used, either the space of the discharge chamber is limited, or the position of the electrode generating the sliding arc is fixed, neither the space nor the electrode can automatically adapt to the amount of the sewage to be treated to automatically adapt, and meanwhile, the holes generating the cavitation bubbles are likely to be blocked, and the rotational flow type hollow cone generating the cavitation bubbles cannot be well cooperated with the electrode, so that the efficiency and effect of the treatment of the landfill leachate are still improved.
Disclosure of Invention
In order to overcome the defects of the conventional landfill leachate treatment, the invention provides a technical scheme, and a landfill leachate advanced treatment process comprises the following steps:
1. the assembled equipment for the landfill leachate advanced treatment process comprises the following steps:
fixedly arranging a cavitation inner core on the inner side of an outer cylinder, arranging a grounding electrode ring in an attaching mode on the inner side wall of the outer cylinder, arranging a high-voltage electrode ring in an attaching mode on the outer side wall of the cavitation inner core, wherein the grounding electrode ring and the high-voltage electrode ring are both composed of spiral electrode bodies, a first spiral groove is formed between the spiral electrode bodies of the high-voltage electrode ring, the cavitation inner core is composed of an outer sleeve, an inner sleeve conical cylinder and a plurality of middle sleeves, the middle sleeves are arranged on the inner side of the outer sleeve in an attaching and sliding mode, the inner sleeve conical cylinder is arranged on the inner side in an attaching and sliding mode, a plurality of first strip-shaped grooves are formed in the side wall of the outer sleeve, a plurality of second strip-shaped grooves are formed in the side wall of the middle sleeve, a plurality of third strip-shaped grooves are formed in the side wall of the inner sleeve conical cylinder, the first strip-shaped grooves, the second strip-shaped grooves and the third strip-shaped grooves can coincide with each other when the inner sleeve conical cylinder slides, holes generated by cavitation bubbles are formed in the first strip-shaped grooves, the high-voltage electrode ring and the grounding electrode ring form a plasma discharge cavity, and a plasma generation source is connected with one end of the grounding electrode ring; completing the assembly of equipment for the landfill leachate advanced treatment process;
2. driving a plasma generation source to be electrified:
driving a plasma generating source to perform rapid discharge;
3. continuously introducing landfill leachate for advanced treatment:
the garbage percolate is introduced from the left side of the outer barrel, passes through the cavitation inner core, generates cavitation bubbles through the holes formed by the first strip-shaped groove, the second strip-shaped groove, the third strip-shaped groove and the first spiral groove, is broken down by high-frequency high-voltage current after passing through the discharge cavity to generate a large amount of active free radicals and active substances, and is used for treating COD (chemical oxygen demand) and BOD (biochemical oxygen demand) in the garbage percolate 5 Degrading with ammonia nitrogen;
4. the device carries out advanced treatment according to dynamic adjustment of the landfill leachate:
a linkage frame assembly is arranged between the grounding electrode ring and the high-voltage electrode ring, so that the grounding electrode ring is adaptive to the sliding of the high-voltage electrode ring, when the garbage leachate is more, the inner sleeve conical cylinder is driven to slide rightwards, the cavitation inner core is extended, the spiral electrode body on the outer side of the cavitation inner core is driven to extend, the position of a spiral groove is dynamically changed, the position of a hole for generating cavitation bubbles is changed, and meanwhile, the discharge cavity is lengthened, so that the space of the discharge cavity is enlarged when the garbage leachate is more; after landfill leachate becomes less, the spiral electrode body reconversion of high voltage electrode circle drives the interior cover awl section of thick bamboo and slides left for the cavitation inner core shortens, and then makes the discharge chamber shorten again, dwindles the discharge chamber space when landfill leachate is less.
Preferably, the garbage leachate advanced treatment equipment further comprises an outer cylinder, a cavitation inner core, a grounding electrode ring and a high-voltage electrode ring, wherein the grounding electrode ring is attached to the inner side wall of the outer cylinder, the high-voltage electrode ring is attached to the outer side wall of the cavitation inner core, the grounding electrode ring and the high-voltage electrode ring are both composed of spiral electrode bodies, a first spiral groove is formed between the spiral electrode bodies of the high-voltage electrode ring, a second spiral groove is formed between the spiral electrode bodies of the grounding electrode ring, the left ends of the high-voltage electrode ring and the grounding electrode ring are both fixedly arranged at the left end of the outer cylinder, the right ends of the high-voltage electrode ring and the grounding electrode ring are free ends, a linkage frame assembly is connected between the high-voltage electrode ring and the grounding electrode ring, so that the high-voltage electrode ring and the grounding electrode ring are kept synchronous when being stretched, and the respective spiral electrode bodies are always opposite, the left end and the right end of the outer cylinder are respectively provided with a water inlet and a water outlet, the left end of the cavitation inner core is fixedly arranged on the inner side of the outer cylinder, the cavitation inner core is composed of an outer cylinder, an inner cylinder conical cylinder and a plurality of middle cylinders, the middle cylinders are attached and slidably arranged on the inner side of the outer cylinder, the side wall of the outer cylinder is provided with a plurality of first strip-shaped grooves, the side wall of the middle cylinder is provided with a plurality of second strip-shaped grooves, the side wall of the inner cylinder conical cylinder is provided with a plurality of third strip-shaped grooves, the first strip-shaped grooves, the second strip-shaped grooves and the third strip-shaped grooves are the same in number and can be superposed with each other when the inner cylinder conical cylinder slides, the right side of the inner cylinder conical cylinder comprises a spherical shell, holes generated by cavitation bubbles formed by the first strip-shaped grooves, the second strip-shaped grooves and the third strip-shaped grooves and the first spiral groove, and a high-voltage discharge ring and a grounding electrode ring form a cavity, and a plasma generating source is also arranged on the outer side of the outer barrel, one end of the plasma generating source is connected with the high-voltage electrode ring, and the other end of the plasma generating source is connected with the grounding electrode ring.
Preferably, the outer sleeve comprises a first cylinder core and a first cylinder edge, the first cylinder edge is arranged on the left side of the first cylinder core, first inner holes are formed in the first cylinder core and the inner side of the first cylinder edge, and the first strip-shaped grooves are uniformly distributed in the first cylinder core; the inner sleeve conical barrel comprises a first cylindrical barrel and a second spherical shell, the second spherical shell is arranged on the right side of the first cylindrical barrel, closed holes are formed in the second spherical shell and the first cylindrical barrel, and the plurality of strip-shaped grooves III are uniformly distributed in the first cylindrical barrel; the middle sleeve comprises a second cylinder core, a second inner hole is formed in the second cylinder core, and the second bar-shaped grooves are uniformly distributed in the second cylinder core.
Preferably, the outer cylinder comprises a cylinder body, a left edge and a right edge, the left edge is arranged at the left end of the cylinder body, the right edge is arranged at the right end of the cylinder body, the inner end of the left edge forms a water inlet, and the inner end of the right edge forms a water outlet; the left end of the cylinder edge is fixed at the right end of the left edge.
Preferably, the high-voltage electrode ring comprises a first electrode ring, a second electrode ring and a third electrode ring, the first electrode ring, the second electrode ring and the third electrode ring are all formed by spiral electrode bodies, the first electrode ring and the second electrode ring are fixedly connected through a first connecting ring, the second electrode ring and the third electrode ring are fixedly connected through a second connecting ring, the left end of the first electrode ring is fixedly arranged at the right end of the cylinder edge, the first connecting ring is fixedly arranged at the right end of the first cylinder core in a sliding mode and cannot be separated from the rightmost end of the first cylinder core, the second connecting ring is fixedly arranged at the right end of the second cylinder core in a sliding mode and cannot be separated from the rightmost end of the second cylinder core, and the rightmost end of the third electrode ring is fixedly arranged on the outer side of the first cylinder.
Preferably, the grounding electrode ring comprises a first grounding ring, a second grounding ring and a third grounding ring, the first grounding ring, the second grounding ring and the third grounding ring are all formed by a spiral electrode body, the first grounding ring and the second grounding ring are fixedly connected through a third connecting ring, the second grounding ring and the third grounding ring are fixedly connected through a fourth connecting ring, and the left end of the first grounding ring is fixedly arranged at the right end of the cylinder rim.
Preferably, the linkage frame assembly comprises a first linkage frame, a second linkage frame and a third linkage frame, the two ends of the first linkage frame are respectively and fixedly arranged on the outer side of the first coupling ring and the inner side of the third coupling ring, the two ends of the second linkage frame are respectively and fixedly arranged on the outer side of the second coupling ring and the inner side of the fourth coupling ring, and the two ends of the third linkage frame are respectively and fixedly arranged at the right end of the third electrode ring and the right end of the third grounding ring.
Preferably, the two ends of the spiral electrode body of the high-voltage electrode ring are also provided with a first insulating ring block, and the two ends of the spiral electrode body of the grounding electrode ring are also provided with a second insulating ring block, so that no electric leakage occurs between the adjacent electrodes.
Preferably, the buffer seal deformation strips are arranged at the contact part of the inner side of the spiral electrode body and the outer side of the first cylinder core, the contact part of the inner side of the spiral electrode body and the outer side of the second cylinder core, and the contact part of the inner side of the spiral electrode body and the outer side of the first cylinder core.
The invention has the beneficial effects that:
1) In the advanced treatment process for the landfill leachate, the space size of a discharge cavity for treating the landfill leachate can be changed in real time along with the quantity of the landfill leachate to be treated and the speed of the passed landfill leachate, when the flow rate of the landfill leachate to be treated is higher, the space of the discharge cavity can be increased, and when the flow rate of the landfill leachate to be treated is lower, the space of the discharge cavity can be decreased, so that the landfill leachate can be more thoroughly and completely oxidized, organic matters and ammonia nitrogen in the landfill leachate are more sufficiently degraded, and compared with the existing treatment process which cannot change the discharge cavity, the treatment of the landfill leachate can be more thorough;
2) Furthermore, in the landfill leachate treatment equipment, the spiral electrode body is used as a high-voltage electrode ring and a grounding electrode ring, the high-voltage electrode ring and the grounding electrode ring are connected by using the linkage frame assembly, the cavitation inner core in the equipment is a cylindrical structure with a plurality of sleeves in sliding sleeve connection, and the side walls of the cylindrical structure are provided with strip-shaped grooves, the high-voltage electrode ring of the spiral electrode body is attached to the outer side of the cavitation inner core, the high-voltage electrode ring not only serves as an electrode, but also forms a variable spiral groove I, the spiral groove I and the strip-shaped grooves jointly form a hole for generating cavitation bubbles, and meanwhile, the high-voltage electrode ring also plays the role of a driving component for deforming the sleeves, and when the cavitation inner core needs to perform telescopic action, the high-voltage electrode ring also plays the role of a spring, and through the arrangement of the cavitation inner core, the requirement that the cavitation inner core can adjust the rate and the quantity of the landfill leachate to be treated in real time is met;
3) Furthermore, the first electrode ring, the second electrode ring and the third electrode ring slide relative to the first cylinder core, the second cylinder core and the first cylinder, so that the positions of holes generated by cavitation bubbles formed by the first strip-shaped groove, the second strip-shaped groove, the third strip-shaped groove and the first spiral groove change in real time, compared with the existing immovable hole structure, the possibility that the holes are blocked is further reduced, and meanwhile, because the spiral electrode body is arranged in a sliding manner relative to the cylinder core, the moving spiral electrode body can also clean magazines or blockages staying on the first strip-shaped groove and the first spiral groove, so that the cleanness of the holes forming the cavitation bubbles is further ensured;
4) Meanwhile, the buffering sealing deformation strip is arranged at the contact part between the inner side of the spiral electrode body of the first electrode ring and the outer side of the first cylinder core, the contact part between the inner side of the spiral electrode body of the second electrode ring and the outer side of the second cylinder core, and the contact part between the inner side of the spiral electrode body of the third electrode ring and the outer side of the first cylinder core, so that the buffering sealing deformation strip can play a role in buffering, and can firmly fix the high-voltage electrode ring on the cavitation inner core 2 when the spiral electrode body is elongated and deformed when the inner cone cylinder is subjected to large impact force due to large garbage leachate introduction flow velocity, thereby further ensuring the safety of equipment treatment;
5) The landfill leachate treatment facility of this application is because can adjust according to the landfill leachate who gets into in the equipment in real time, consequently, when carrying out landfill leachate and handling, its speed that can increase the landfill leachate who lets in the water inlet completely, finally can be in the same time, handle more landfill leachate or spend less time when handling the same landfill leachate, and simultaneously, also can guarantee landfill leachate's treatment effect, it can reach higher treatment effeciency to compare current landfill leachate treatment facility.
Drawings
FIG. 1 is a schematic structural view of an advanced treatment apparatus for landfill leachate according to the present invention;
FIG. 2 is an exploded view of the cavitating core of the present invention;
FIG. 3 is a view of the assembly of the cavitation core of the present invention;
FIG. 4 is a schematic view of the outer sleeve;
FIG. 5 is a schematic view of the structure of the intermediate sleeve;
FIG. 6 is a schematic structural view of an inner sleeve cone;
fig. 7 is a schematic diagram of the electrode ring structure.
Description of the reference symbols
1. An outer cylinder; 2. a cavitated core; 3. a grounding electrode ring; 4. a high voltage electrode ring; 5. a discharge chamber; 6. an outer sleeve; 7. an inner sleeve conical cylinder; 8. an intermediate sleeve; 9. a cylinder core I; 10. a barrel flange; 11. an inner hole I; 12. a first strip-shaped groove; 13. a second cylinder core; 14. an inner hole II; 15. a strip-shaped groove II; 17. a first cylindrical drum; 18. a spherical shell II; 19. closing the hole; 20. a strip-shaped groove III; 21. a first electrode ring; 22. a second electrode ring; 23. a third electrode ring; 24. a spiral electrode body; 25. a first ground ring; 26. a second ground ring; 27. a third ground ring; 28. a buffer block; 29. an insulating ring block I; 30. a second insulating ring block; 31. a first spiral groove; 32. a barrel; 33. a left edge; 34. a right edge; 35. a water inlet; 36. a water outlet; 37. a linkage frame assembly; 38. a first linkage frame; 39. a second linkage frame; 40. a third link frame; 41. a second spiral groove; 42. a first coupling ring; 43. a second coupling ring; 44. a third coupling ring; 45. a fourth connecting ring; 46. a main ring body; 47. the left edge ring.
Detailed Description
The invention is further illustrated by the following examples, but is not intended to be limited in any way, and any modifications or alterations based on the teachings of the invention are intended to fall within the scope of the invention.
A landfill leachate advanced treatment process comprises the following steps:
1. the assembled equipment for the landfill leachate advanced treatment process comprises the following steps:
as shown in fig. 1-7, a cavitation inner core 2 is fixedly arranged on the inner side of an outer cylinder 1, a grounding electrode ring 3 is arranged on the inner side wall of the outer cylinder 1 in a fitting manner, a high-voltage electrode ring 4 is arranged on the outer side wall of the cavitation inner core 2 in a fitting manner, both the grounding electrode ring 3 and the high-voltage electrode ring 4 are composed of spiral electrode bodies 24, a spiral groove one 31 is formed between the spiral electrode bodies 24 of the high-voltage electrode ring 4, the cavitation inner core 2 is composed of an outer sleeve 6, an inner conical cylinder 7 and a plurality of intermediate sleeves 8, the intermediate sleeves 8 are arranged on the inner side of the outer sleeve 6 in a fitting and sliding manner, the inner conical cylinder 7 is arranged on the inner side wall of the outer sleeve 8 in a fitting and sliding manner, a plurality of bar-shaped grooves one 12 are arranged on the side wall of the inner conical cylinder 7, a plurality of bar-shaped grooves three 20 are arranged on the side wall of the inner conical cylinder 7, the bar-shaped grooves one 12, the bar-shaped grooves two 15 and the bar-shaped grooves three 20 are arranged on the inner conical cylinder 7 in the same number, and can be mutually overlapped when the inner conical cylinder 7 slides, the inner conical cylinder 7 comprises a spherical shell two 18, a high-pressure electrode ring 3 connected with a high-voltage plasma generating cavity, and a high-voltage plasma generating chamber 3 is formed on the outer side of the outer cylinder 3; completing the assembly of equipment for the landfill leachate advanced treatment process;
2. driving a plasma generation source to be electrified:
the plasma generating source adopts a high-voltage/high-frequency charging circuit design, a high energy storage density capacitor and a single-pulse discharging circuit topological structure design, can realize quick charging and discharging, and drives the plasma generating source to quickly discharge;
3. continuously introducing landfill leachate for advanced treatment:
the garbage percolate is introduced from the left side of the outer barrel 1, passes through the cavitation inner core 2, generates cavitation bubbles through holes formed by the strip-shaped groove I12, the strip-shaped groove II 15, the strip-shaped groove III 20 and the spiral groove I31, passes through the discharge cavity 5, is broken down by high-frequency high-voltage current to generate a large amount of active free radicals (O, H and OH) and active substances (O3 and H2O 2), and then degrades COD, BOD5 and ammonia nitrogen in the garbage percolate;
4. the device carries out advanced treatment according to dynamic adjustment of the landfill leachate:
a linkage frame assembly 37 is arranged between the grounding electrode ring 3 and the high-voltage electrode ring 4, so that the grounding electrode ring 3 is adaptive to the sliding of the high-voltage electrode ring 4, when the garbage leachate is more, the inner sleeve conical cylinder 7 is driven to slide rightwards, the cavitation inner core 2 is driven to extend, the spiral electrode body 24 on the outer side of the cavitation inner core 2 is driven to extend, the position of a spiral groove I31 is dynamically changed, the position of a hole for generating cavitation bubbles is changed, and meanwhile, the discharge cavity 5 is lengthened, so that the space of the discharge cavity is enlarged when the garbage leachate is more; after the landfill leachate is reduced, the spiral electrode body 24 of the high-voltage electrode ring 4 restores to the original state to drive the inner sleeve conical cylinder 7 to slide leftwards, so that the cavitation inner core 2 is shortened, the discharge cavity 5 is further shortened, and the space of the discharge cavity is reduced when the landfill leachate is less. Finally, the landfill leachate is degraded and then output from the right side of the outer barrel 1.
Preferably, the landfill leachate advanced treatment equipment also comprises landfill leachate advanced treatment equipment, as shown in fig. 1-7, the landfill leachate advanced treatment equipment comprises an outer cylinder 1, a cavitation inner core 2, a grounding electrode ring 3 and a high-voltage electrode ring 4, wherein the grounding electrode ring 3 is attached to the inner side wall of the outer cylinder 1, the high-voltage electrode ring 4 is attached to the outer side wall of the cavitation inner core 2, both the grounding electrode ring 3 and the high-voltage electrode ring 4 are composed of spiral electrode bodies 24, a spiral groove I31 is formed between the spiral electrode bodies 24 of the high-voltage electrode ring 4, a spiral groove II 41 is formed between the spiral electrode bodies 24 of the grounding electrode ring 3, the left ends of the high-voltage electrode ring 4 and the grounding electrode ring 3 are fixedly arranged at the left end of the outer cylinder 1, the right ends of the high-voltage electrode ring 4 and the grounding electrode ring 3 are free ends, and a linkage frame assembly 37 is connected between the high-voltage electrode ring 4 and the grounding electrode ring 3, the high-voltage electrode ring 4 and the grounding electrode ring 3 are kept synchronous when stretching and retracting, respective spiral electrode bodies 24 are always opposite, a water inlet 35 and a water outlet 36 are respectively arranged at the left end and the right end of the outer cylinder 1, the left end of the cavitation inner core 2 is fixedly arranged at the inner side of the outer cylinder 1, the cavitation inner core 2 is composed of an outer sleeve 6, an inner sleeve conical cylinder 7 and a plurality of intermediate sleeves 8, the intermediate sleeves 8 are arranged at the inner side of the outer sleeve 6 in a fitting and sliding manner, the inner sleeve conical cylinder 7 is arranged at the inner side of the intermediate sleeves 8 in a fitting and sliding manner, a plurality of strip-shaped grooves I12 are arranged on the side wall of the outer sleeve 6, a plurality of strip-shaped grooves II 15 are arranged on the side wall of the intermediate sleeve 8, a plurality of strip-shaped grooves III 20 are arranged on the side wall of the inner sleeve conical cylinder 7, the strip-shaped grooves I12, the strip-shaped grooves II 15 and the strip-shaped grooves III 20 are the same in number and can be mutually overlapped when the inner sleeve conical cylinder 7 slides, the right side of the inner sleeve conical cylinder 7 comprises a spherical shell II 18, the hole that the cavitation bubble produced is formed by bar groove one 12, bar groove two 15 and bar groove three 20 and spiral groove one 31, and high voltage electrode circle 4 and ground electrode circle 3 form discharge chamber 5, still are provided with the plasma generating source in the outside of urceolus 1, plasma generating source termination high voltage electrode circle 4 another termination ground electrode circle 3.
Preferably, in order to guide the sleeve conveniently, a guide structure may be provided between the outer sleeve 6 and the middle sleeve 8, and between the middle sleeve 8 and the inner sleeve cone 7, for example, the guide structure may be implemented by a structure of a guide groove and a guide block, which is not a focus of the present application and belongs to the common general knowledge in the art, and therefore, the description is omitted. Meanwhile, in order to ensure that the sleeves cannot slide out, a limiting structure for preventing the sleeves from sliding out can be arranged, for example, the guide groove is stopped at the inner side of the end part of the sleeve, so that the sleeves are prevented from sliding out. It is not important to note here, and is common general knowledge in the art, and therefore, the detailed description is omitted.
Preferably, the outer sleeve 6 comprises a first cylinder core 9 and a cylinder edge 10, the cylinder edge 10 is arranged on the left side of the first cylinder core 9, an inner hole 11 is formed on the inner sides of the first cylinder core 9 and the cylinder edge 10, and the plurality of first strip-shaped grooves 12 are uniformly distributed on the first cylinder core 9.
Preferably, the inner sleeve conical barrel 7 comprises a first cylindrical barrel 17 and a second spherical shell 18, the second spherical shell 18 is arranged on the right side of the first cylindrical barrel 17, a closed hole 19 is formed in the second spherical shell 18 and the first cylindrical barrel 17, and the plurality of strip-shaped grooves three 20 are uniformly arranged in the first cylindrical barrel 17.
Preferably, the middle sleeve 8 comprises a second cylindrical core 13, a second inner hole 14 is formed in the second cylindrical core 13, and the second strip-shaped grooves 15 are uniformly distributed in the second cylindrical core 13.
Preferably, the middle sleeve 8 is inserted into the outer sleeve 6, and the inner sleeve cone 7 is inserted into the middle sleeve 8.
Preferably, the size of the inner hole I11 is matched with that of the cylinder core II 13, and the size of the inner hole II 14 is matched with that of the cylinder barrel I17.
Preferably, the diameter of the inner hole I11 is the same as that of the cylinder core II 13, and the diameter of the inner hole II 14 is the same as that of the cylinder barrel I17.
Preferably, the outer barrel 1 comprises a barrel 32, a left edge 33 and a right edge 34, the left edge is arranged at the left end of the barrel 32, the right edge 34 is arranged at the right end of the barrel 32, the inner end of the left edge 33 forms an inlet 35, and the inner end of the right edge 34 forms an outlet 36.
Preferably, the left end of the flange 10 is fixed to the right end of the left flange 33.
Preferably, the high voltage electrode ring 4 comprises a first electrode ring 21, a second electrode ring 22 and a third electrode ring 23, the first electrode ring 21, the second electrode ring 22 and the third electrode ring 23 are all formed by a spiral electrode body 24, the first electrode ring 21 and the second electrode ring 22 are fixedly connected through a first connecting ring 42, the second electrode ring 22 and the third electrode ring 23 are fixedly connected through a second connecting ring 43, the left end of the first electrode ring 21 is fixedly arranged at the right end of the cylinder edge 10, the first connecting ring 42 is fixedly arranged at the right end of the cylinder core one 9 in a sliding manner and cannot be separated from the rightmost end of the cylinder core one 9, the second connecting ring 42 is fixedly arranged at the right end of the cylinder core two 13 in a sliding manner and cannot be separated from the rightmost end of the cylinder core two 13, and the rightmost end of the third electrode ring 23 is fixedly arranged outside the cylinder core one 17.
Preferably, the grounding electrode ring 3 comprises a first grounding ring 25, a second grounding ring 26 and a third grounding ring 27, the first grounding ring 25, the second grounding ring 26 and the third grounding ring 27 are all formed by the spiral electrode body 24, the first grounding ring 25 and the second grounding ring 26 are fixedly connected through a third connecting ring 44, the second grounding ring 26 and the third grounding ring 27 are fixedly connected through a fourth connecting ring 45, and the left end of the first grounding ring 25 is fixedly arranged at the right end of the cylinder edge 10.
Preferably, the linkage frame assembly 37 includes a first linkage frame 38, a second linkage frame 39 and a third linkage frame 40, two ends of the first linkage frame 38 are respectively and fixedly disposed at the outer side of the first coupling ring 42 and the inner side of the third coupling ring 44, two ends of the second linkage frame 39 are respectively and fixedly disposed at the outer side of the second coupling ring 43 and the inner side of the fourth coupling ring 45, and two ends of the third linkage frame 40 are respectively and fixedly disposed at the right end of the third electrode ring 23 and the right end of the third grounding ring 27.
Preferably, the two ends of the spiral electrode body 24 of the high-voltage electrode ring 4 are further provided with a first insulating ring block 29, and the two ends of the spiral electrode body 24 of the grounding electrode ring 3 are further provided with a second insulating ring block 30, so that no electric leakage occurs between the adjacent electrodes.
Preferably, the first linkage frame 38, the second linkage frame 39 and the third linkage frame 40 have the same structure and are all insulating support rods, so that the functions of supporting and synchronizing are achieved, and sewage can smoothly pass through the insulating support rods.
Preferably, the first coupling ring 42 and the second coupling ring 43 are the same in shape and each include a main ring body 46 and a left edge ring 47, the left edge ring 47 is arranged at the left end of the main ring body 46, the inner side of the main ring body 46 of the first coupling ring 42 is arranged outside the second cylinder core 13 in an abutting and sliding manner, the inner side of the left edge ring 47 of the first coupling ring 42 is arranged outside the first cylinder core 9 in an abutting and sliding manner, and the left edge ring 47 of the first coupling ring 42 cannot be separated from the rightmost end of the first cylinder core 9; the inner side of the main ring body 46 of the second coupling ring 43 is arranged outside the first cylindrical barrel 17 in a fit and sliding manner, the inner side of the left edge ring 47 of the second coupling ring 43 is arranged outside the second barrel core 13 in a fit and sliding manner, and the left edge ring 47 of the second coupling ring 43 cannot be separated from the rightmost end of the second barrel core 13.
Preferably, the inner side of the left edge ring 47 of the first coupling ring 42 is provided with a locking pin, the outer side of the first barrel core 9 is provided with a sliding groove, the locking pin is clamped in the sliding groove, and the sliding groove is terminated at the position, close to the rightmost end, of the first barrel core 9, such as a certain distance, such as 1cm, away from the rightmost end, so that the first coupling ring 42 can be prevented from being separated from the rightmost end of the outer sleeve 6; preferably, the inner side of the left edge ring 47 of the second coupling ring 43 is provided with a locking pin, the outer side of the second barrel core 13 is provided with a sliding groove, the locking pin is clamped in the sliding groove, and the sliding groove is terminated at the position, close to the rightmost end, of the second barrel core 13, for example, a certain distance, for example, 1cm, away from the rightmost end, so that the second coupling ring 43 can be prevented from being separated from the rightmost end of the middle sleeve 8; the position limiting structure can be realized through other limiting structures, and the position limiting structure is not the key point of the application and is not described in detail.
Preferably, the left side of right edge 34 still is provided with buffer block 28, and this buffer block 28 is used for because the landfill leachate who passes through is too much at cavitation inner core 2, can play a cushioning effect when ground electrode circle 3 and high voltage electrode circle 4 adaptation are elongated, avoids colliding the right edge 34 of urceolus 1, also plays a limiting displacement simultaneously, avoids ground electrode circle 3 and high voltage electrode circle 4 excessively to elongate and cause the harm.
Preferably, the spiral electrode body 24 may be made of a memory alloy or a general conductive metal, such as stainless steel, high carbon steel, etc., so that the spiral electrode body 24 has a certain deformation capability while being conductive.
The spiral electrode body 24 is an electrode having a spiral shape as a whole, and may be, for example, a conductive metal having a rectangular cross section, which is bent to form a spiral structure as a whole.
Preferably, buffer seal deformation strips are arranged at the contact part of the inner side of the spiral electrode body 24 and the outer side of the first cylinder core 9, the contact part of the inner side of the spiral electrode body 24 and the outer side of the second cylinder core 13, and the contact part of the inner side of the spiral electrode body 24 and the outer side of the first cylinder 17, so that when the first electrode ring 21, the second electrode ring 22 and the third electrode ring 23 are stretched and deformed, the buffer seal deformation strips are compressed and deformed, and the buffer seal deformation strips can form holes between the strip-shaped grooves and the first spiral grooves for forming cavitation bubbles and can also adapt to the stretching and contracting deformation of the spiral electrode body 24. Preferably, the cushioning seal deforming bar is fixedly provided on the inner side of the spiral electrode body 24. Preferably, the buffering seal deformation strip can be integrally formed with the insulating ring block one 29, and the buffering deformation strip can be made of rubber or PCV.
Preferably, the right side of the cylinder edge 10 is provided with an insulating structure such as an insulating pad, so that the grounding electrode ring and the high-voltage electrode ring are prevented from being communicated and conducting; preferably, two poles of the plasma generating source are respectively connected with the left end of the first electrode ring 21 and the left end of the first grounding ring 25, specifically, a lead can pass through the outer barrel 1 by digging a hole and the like, and the specific connection mode is common knowledge in the field and is not a key point of the application, so that the details are not repeated.
Preferably, the first coupling ring 42, the second coupling ring 43, the third coupling ring 44 and the fourth coupling ring 45 are made of conductive metal materials, such as stainless steel, high carbon steel and the like.
In order to make the skilled person understand the present application in detail, the working process of the landfill leachate advanced treatment equipment of the present application will now be described as follows: when the landfill leachate is required to be deeply treated, a plasma generating source works, a discharge cavity 5 is formed between a high-voltage electrode ring 4 and a grounding electrode ring 3, the landfill leachate flows in from a water inlet 35 on the left side of an outer barrel 1, the landfill leachate passes through a cavitation inner core 2, then cavitation bubbles are generated through holes formed by a strip-shaped groove I12, a spiral groove I31, a strip-shaped groove II 15, a spiral groove I31, a strip-shaped groove III 20 and a spiral groove I31, and after passing through the discharge cavity 5, high-frequency high-voltage current is punctured to generate a large number of active free radicals (& O, & H & OH) and active substances (O3 & H2O 2), so that COD, BOD5 and ammonia nitrogen in the landfill leachate are degraded, and the degraded and purified landfill leachate flows out from a water outlet 36; meanwhile, if more landfill leachate impacts the inner sleeve conical barrel 7, the inner sleeve conical barrel 7 is driven to slide rightwards, the third electrode ring 23 attached to the outer side of the first cylindrical barrel 17 is stretched, the third linkage frame 40 drives the third grounding ring 27 on the inner side of the barrel 32 to stretch synchronously, if the landfill leachate impact force is still large, when the second linkage ring 43 slides to the right end of the second barrel core 13, the third electrode ring 23 continues to pull the second electrode ring 22 to elongate and deform, the second linkage frame 39 drives the second grounding ring 26 in the barrel 32 to stretch synchronously, if the landfill leachate impact force is still large, when the first linkage ring 42 slides to the right end of the first barrel core 9, the second electrode ring 22 continues to pull the first electrode ring 21 to elongate and deform, the first electrode ring 21, the second electrode ring 22 and the third electrode ring 23 after the elongation and deformation compress the buffer sealing deformation strip to deform, and the deformation strip can also enable the electrode ring to be kept contracted tightly outside of the cavitation inner core 2, so that the deformation of the electrode ring 21, the space of the discharge chamber 5 is finally large, and the inner sleeve 7 is completely abutted to the right side of the buffer block 28. When landfill leachate that needs to handle is more, the velocity of flow is very fast, the space of discharge chamber 5 can adapt to in real time and extend, simultaneously, because the spiral electrode body slides at the cavitation inner core for spiral groove 31's position changes in real time, consequently, also the position in the hole of being formed by spiral groove one and each bar flute is the change, also makes the hole be difficult to block up. After the flow rate of the landfill leachate is slowed down, the first electrode ring 21, the second electrode ring 22 and the third electrode ring 23 automatically recover to shrink, so that the cavitation inner core 2 can change the adaptability according to the flow rate of the landfill leachate, and the flexibility of leachate treatment is improved. After passing through the discharge chamber 5, the landfill leachate flows out from the water outlet 36.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the invention, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (9)
1. The advanced treatment process of the landfill leachate is characterized by comprising the following steps of:
1. the assembled equipment for the landfill leachate advanced treatment process comprises the following steps:
the cavitation inner core (2) is fixedly arranged on the inner side of the outer cylinder (1), the inner side wall of the outer cylinder (1) is attached with a grounding electrode ring (3), the outer side wall of the cavitation inner core (2) is attached with a high-voltage electrode ring (4), the grounding electrode ring (3) and the high-voltage electrode ring (4) are both composed of spiral electrode bodies (24), a spiral groove I (31) is formed between the spiral electrode bodies (24) of the high-voltage electrode ring (4), the cavitation inner core (2) is composed of an outer sleeve (6), an inner sleeve cone (7) and a plurality of intermediate sleeves (8), the intermediate sleeves (8) are attached and slidably arranged on the inner side of the outer sleeve (6), the inner sleeve cone (7) is attached and slidably arranged on the inner side of the intermediate sleeves (8), the lateral wall of outer sleeve (6) is provided with a plurality of bar groove one (12), and the lateral wall of middle sleeve (8) is provided with a plurality of bar groove two (15), the lateral wall of endotheca awl section of thick bamboo (7) is provided with a plurality of bar groove three (20), bar groove one (12), bar groove two (15) and bar groove three (20) quantity are the same, and can coincide each other when endotheca awl section of thick bamboo (7) slides, the right side of endotheca awl section of thick bamboo (7) includes spherical shell two (18), forms the hole that the cavitation bubble produced by bar groove one (12), bar groove two (15) and bar groove three (20) and helicla flute (31) The high-voltage electrode ring (4) and the grounding electrode ring (3) form a discharge cavity (5), a plasma generating source is also arranged on the outer side of the outer cylinder (1), and one end of the plasma generating source is connected with the high-voltage electrode ring (4) while the other end is connected with the grounding electrode ring (3); completing the assembly of equipment for the landfill leachate advanced treatment process;
2. driving a plasma generation source to be electrified:
driving a plasma generating source to carry out rapid discharge;
3. continuously introducing landfill leachate for advanced treatment:
the garbage percolate is introduced from the left side of the outer barrel (1), passes through the cavitation inner core (2), generates cavitation bubbles through holes formed by the strip-shaped groove I (12), the strip-shaped groove II (15), the strip-shaped groove III (20) and the spiral groove I (31), is punctured by high-frequency high-voltage current to generate a large amount of active free radicals and active substances after passing through the discharge cavity (5), and is used for treating garbageCOD and BOD in percolate 5 Degrading with ammonia nitrogen;
4. the device carries out advanced treatment according to dynamic adjustment of landfill leachate:
a linkage frame assembly (37) is arranged between the grounding electrode ring (3) and the high-voltage electrode ring (4), so that the grounding electrode ring (3) is adaptive to the sliding of the high-voltage electrode ring (4), when the garbage leachate is more, the inner sleeve conical barrel (7) is driven to slide rightwards, the cavitation inner core (2) is extended, the spiral electrode body (24) on the outer side of the cavitation inner core (2) is driven to extend, the position of the spiral groove I (31) is dynamically changed, the position of a hole for generating cavitation bubbles is changed, and meanwhile, the discharge cavity (5) is lengthened, so that the space of the discharge cavity is enlarged when the garbage leachate is more; after the landfill leachate is reduced, the spiral electrode body (24) of the high-voltage electrode ring (4) restores to the original state to drive the inner sleeve conical cylinder (7) to slide leftwards, so that the cavitation inner core (2) is shortened, the discharge cavity (5) is further shortened, and the space of the discharge cavity is reduced when the landfill leachate is less.
2. The utility model provides a landfill leachate advanced treatment equipment, its includes urceolus (1), cavitation inner core (2), ground electrode circle (3) and high voltage electrode circle (4), the laminating of ground electrode circle (3) sets up the inside wall at urceolus (1), the laminating of high voltage electrode circle (4) sets up the lateral wall at cavitation inner core (2), its characterized in that: the cavitation electrode assembly comprises a grounding electrode ring (3) and a high-voltage electrode ring (4), wherein the grounding electrode ring (3) and the high-voltage electrode ring (4) are both composed of spiral electrode bodies (24), a first spiral groove (31) is formed between the spiral electrode bodies (24) of the high-voltage electrode ring (4), a second spiral groove (41) is formed between the spiral electrode bodies (24) of the grounding electrode ring (3), the left ends of the high-voltage electrode ring (4) and the grounding electrode ring (3) are both fixedly arranged at the left end of an outer barrel (1), the right ends of the high-voltage electrode ring (4) and the grounding electrode ring (3) are free ends, a linkage frame assembly (37) is connected between the high-voltage electrode ring (4) and the grounding electrode ring (3) so that the high-voltage electrode ring (4) and the grounding electrode ring (3) are kept synchronous when the high-voltage electrode ring and the high-voltage electrode ring are telescopic, the respective spiral electrode bodies (24) are opposite all the time, the left end and the right end of the outer barrel (1) are respectively provided with a water inlet (35) and a water outlet (36), the left end of the cavitation inner barrel (2) is fixedly arranged at the inner side of the outer barrel (1), the cavitation inner barrel (2) is fixedly arranged at the inner barrel (6), the inner barrel (8), the inner barrel (6) is arranged at the inner barrel, the inner barrel (8), the inner barrel (2) is arranged at the inner barrel (6) and the outer barrel (8), the inner barrel (6) and the outer barrel (8), the inner barrel (6) are arranged at the inner barrel (8), the inner barrel (6) and the inner barrel (8), the lateral wall of intermediate sleeve (8) is provided with a plurality of bar groove two (15), the lateral wall of endotheca awl section of thick bamboo (7) is provided with three (20) in a plurality of bar grooves, bar groove one (12), bar groove two (15) and three (20) quantity in bar groove are the same, and can coincide each other when endotheca awl section of thick bamboo (7) slides, the right side of endotheca awl section of thick bamboo (7) includes spherical shell two (18), by bar groove one (12), bar groove two (15) and bar groove three (20) and helicla flute one (31) formation cavitation bubble produce the hole, high-voltage electrode circle (4) and ground electrode circle (3) form discharge chamber (5), still are provided with the plasma generating source in the outside of outer section of thick bamboo (1), a plasma generating source termination high-voltage electrode circle (4) one end in addition meets ground electrode circle (3).
3. The landfill leachate advanced treatment equipment of claim 2, wherein: the outer sleeve (6) comprises a first cylinder core (9) and a cylinder edge (10), the cylinder edge (10) is arranged on the left side of the first cylinder core (9), inner holes I (11) are formed in the first cylinder core (9) and the inner side of the cylinder edge (10), and the plurality of first grooves I (12) are uniformly distributed in the first cylinder core (9); the inner sleeve conical barrel (7) comprises a first cylindrical barrel (17) and a second spherical shell (18), the second spherical shell (18) is arranged on the right side of the first cylindrical barrel (17), closed holes (19) are formed in the second spherical shell (18) and the first cylindrical barrel (17), and the plurality of strip-shaped grooves III (20) are uniformly distributed in the first cylindrical barrel (17); the middle sleeve (8) comprises a second barrel core (13), a second inner hole (14) is formed in the second barrel core (13), and the plurality of strip-shaped grooves (15) are uniformly distributed in the second barrel core (13).
4. The landfill leachate advanced treatment equipment of claim 3, wherein: the outer barrel (1) comprises a barrel body (32), a left edge (33) and a right edge (34), the left edge (33) is arranged at the left end of the barrel body (32), the right edge (34) is arranged at the right end of the barrel body (32), a water inlet (35) is formed at the inner end of the left edge (33), and a water outlet (36) is formed at the inner end of the right edge (34); the left end of the cylinder edge (10) is fixed at the right end of the left edge (33).
5. The landfill leachate advanced treatment equipment of claim 4, wherein: the high-voltage electrode ring (4) comprises a first electrode ring (21), a second electrode ring (22) and a third electrode ring (23), wherein the first electrode ring (21), the second electrode ring (22) and the third electrode ring (23) are all formed by a spiral electrode body (24), the first electrode ring (21) and the second electrode ring (22) are fixedly connected through a first connecting ring (42), the second electrode ring (22) and the third electrode ring (23) are fixedly connected through a second connecting ring (43), the left end of the first electrode ring (21) is fixedly arranged at the right end of the cylinder edge (10), the first connecting ring (42) is fixedly arranged at the right end of the first cylinder core (9) in a sliding mode and cannot be separated from the rightmost end of the first cylinder core (9), the second connecting ring (43) is fixedly arranged at the right end of the second cylinder core (13) in a sliding mode and cannot be separated from the rightmost end of the second cylinder core (13), and the rightmost end of the third electrode ring (23) is fixedly arranged on the outer side of the first cylinder (17).
6. The landfill leachate advanced treatment equipment of claim 5, wherein: the grounding electrode ring (3) comprises a first grounding ring (25), a second grounding ring (26) and a third grounding ring (27), the first grounding ring (25), the second grounding ring (26) and the third grounding ring (27) are all formed by a spiral electrode body (24), the first grounding ring (25) and the second grounding ring (26) are fixedly connected through a third connecting ring (44), the second grounding ring (26) and the third grounding ring (27) are fixedly connected through a fourth connecting ring (45), and the left end of the first grounding ring (25) is fixedly arranged at the right end of the cylinder rim (10).
7. The landfill leachate advanced treatment equipment of claim 6, wherein: linkage frame subassembly (37) include first linkage frame (38), second linkage frame (39) and third linkage frame (40), the both ends of first linkage frame (38) are fixed respectively and are set up the outside at coupling ring one (42) and the inboard of coupling ring three (44), the both ends of second linkage frame (39) are fixed respectively and are set up the outside at coupling ring two (43) and the inboard of coupling ring four (45), the both ends of third linkage frame (40) are fixed respectively and are set up the right-hand member at the right-hand member of third electrode circle (23) and the right-hand member of third earthing circle (27).
8. The landfill leachate advanced treatment equipment of claim 6, wherein: and a first insulating ring block (29) is arranged at two ends of the spiral electrode body (24) of the high-voltage electrode ring (4), and a second insulating ring block (30) is arranged at two ends of the spiral electrode body (24) of the grounding electrode ring (3), so that no electric leakage occurs between adjacent electrodes.
9. The landfill leachate advanced treatment equipment of claim 3, wherein: buffer sealing deformation strips are arranged at the contact part of the inner side of the spiral electrode body (24) and the outer side of the cylinder core I (9), the contact part of the inner side of the spiral electrode body (24) and the outer side of the cylinder core II (13), and the contact part of the inner side of the spiral electrode body (24) and the outer side of the cylinder core I (17).
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