CN114804520A

CN114804520A - Efficient treatment method for landfill leachate

Info

Publication number: CN114804520A
Application number: CN202210428521.1A
Authority: CN
Inventors: 李攀
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-22
Filing date: 2022-04-22
Publication date: 2022-07-29

Abstract

The invention relates to the technical field of leachate treatment, in particular to a high-efficiency treatment method for landfill leachate. The method comprises the steps of firstly, putting garbage into a leachate treatment tank body, and carrying the garbage through a carrying mechanism arranged at the top of the leachate treatment tank body; step two, the force output mechanism outputs force, so that the pressure end of the force output mechanism is contacted with the garbage in the bearing mechanism to form a contact surface; thirdly, the pressure end moves downwards to enable the contact surface to extrude the garbage, and the moisture in the garbage is fully discharged after being pressed; and step four, forming two drainage channels through the bearing mechanism. According to the invention, the discharged water is subjected to staged drainage operation by utilizing the two formed drainage channels, so that the problem that the treated garbage is accumulated and the percolate is formed due to the separate treatment of the garbage and the water is solved, and the percolate with high and low concentration cannot be separately treated.

Description

Efficient treatment method for landfill leachate

Technical Field

The invention relates to the technical field of leachate treatment, in particular to a high-efficiency treatment method for landfill leachate.

Background

The landfill leachate is high-concentration organic wastewater which is derived from water contained in garbage in a garbage landfill, rain, snow and water entering the landfill and other water, deducts the saturated water holding capacity of the garbage and a soil covering layer and is formed by passing through the garbage layer and the soil covering layer;

the nature of landfill leachate varies with the time of operation of the landfill, which is determined primarily by the stabilization process of the landfill; the stabilization process of a landfill is generally divided into five stages, namely an initial conditioning stage, a transition stage, an acidification stage, a methane fermentation stage and a maturation stage.

The existing garbage leachate treatment mode comprises the following steps: the physical and chemical methods mainly comprise various methods such as activated carbon adsorption, chemical precipitation, density separation, chemical oxidation, chemical reduction, ion exchange, membrane dialysis, gas stripping, wet oxidation and the like, and when the COD is 2000-4000 mg/L, the removal rate of the COD of the physical and chemical method can reach 50% -87%; compared with biological treatment, the physicochemical treatment is not influenced by the change of water quality and water quantity, the water quality of the effluent is relatively stable, and the treatment effect is better particularly for the landfill leachate which has a low BOD5/COD ratio (0.07-0.20) and is difficult to biologically treat.

Many times need extrude the percolating water in the rubbish, then the percolating water carries out the independent processing, and the rubbish of detaching moisture is in the state of piling up again, the rubbish surface under this state still is attached with a small amount of filtration liquid, if not timely processing still can produce a large amount of filtration liquid, and the filtration liquid concentration that rubbish was piled up the back and is originally extruded and form is higher, the filtration liquid concentration that the later stage was washed the processing production to rubbish is lower, do not combine the operation together again with rubbish and filtration liquid among the prior art, more do not carry out the drainage according to the stage that filtration liquid concentration is different.

Disclosure of Invention

The invention aims to provide a method for efficiently treating landfill leachate, which aims to solve the problems in the background technology.

In order to realize the aim, the method for efficiently treating the landfill leachate comprises the following steps:

step one, putting the garbage into a leachate treatment tank body, and carrying the garbage through a carrying mechanism arranged at the top of the leachate treatment tank body;

step two, the force output mechanism outputs force, so that the pressure end of the force output mechanism is contacted with the garbage in the bearing mechanism to form a contact surface;

thirdly, the pressure end moves downwards to enable the contact surface to extrude the garbage, and the moisture in the garbage is fully discharged after being pressed;

step four, two drainage channels, namely an initial drainage channel and a flushing drainage channel, are formed through the bearing mechanism, the discharged water is subjected to staged drainage operation by utilizing the two formed drainage channels, and the high-concentration percolate at the stage is directly discharged through the initial drainage channel at the initial stage; the garbage is washed in the washing stage, and the low-concentration percolate formed after washing flows downwards through a washing drainage channel and is independently stored in a percolate treatment tank;

the bearing mechanism comprises a bearing assembly and a breakable isolation assembly, the bearing assembly is arranged at the top of the breakable isolation assembly, the breakable isolation assembly comprises a first partition plate and a second partition plate, the first partition plate is positioned at the top of the second partition plate, and a waste liquid cavity is formed between the first partition plate and the second partition plate;

the bottom of the bearing assembly is provided with a protruding end, the force output mechanism is used as a force output end to extrude garbage in the bearing assembly, the bearing assembly is driven to move downwards under the action of pressure, the protruding end is used for breaking through the first partition plate when moving downwards so as to form an initial drainage channel by virtue of the waste liquid cavity, the protruding end continues to move downwards to break through the second partition plate, and a flushing drainage channel is formed by the protruding end.

As a further improvement of this technical scheme, the bearing component includes restriction frame and loading board, restriction frame fixed connection is on the inside wall of filtration liquid treatment cell body, the mobilizable setting of loading board is in the bottom of restriction frame, forms the bearing chamber to restriction frame bottom shutoff through the loading board, wherein:

the bearing plate is provided with a plurality of circulation grooves;

the bottom of the bearing plate is provided with a plurality of groups of breaking plates, and the breaking plates form protruding ends.

As a further improvement of the technical scheme, the burst plate is supported by the first partition plate under the condition that no external pressure is applied after the bearing cavity bears the garbage, so that a liquid accumulation cavity is formed between the bearing plate and the first partition plate.

As a further improvement of the technical scheme, four corners of the top of the bearing plate are provided with sliding columns, the sliding columns are connected with a limiting frame in a sliding mode, the limiting frame is located at the sliding columns to form a sliding groove, a protruding ring is arranged outside the sliding columns, a connecting spring is arranged between the protruding ring and the inner wall of the sliding groove, and a liquid accumulation cavity is formed between the bearing plate and the first partition plate under the action of the connecting spring.

As a further improvement of the technical scheme, a plurality of grooves capable of being burst are formed in positions of the first partition plate and the second partition plate corresponding to the plurality of groups of burst plates, a first sealing plate and a second sealing plate are respectively arranged on two axial sides of each group of burst plates in the grooves in a breaking mode, the first sealing plate and the second sealing plate are both elastic structures, and the first sealing plate and the second sealing plate are tightly attached to each other under the condition that no pressure is applied to the outside.

As a further improvement of the technical scheme, a plurality of breakthrough plates are arranged in each group, and a gap is formed between every two adjacent breakthrough plates.

As a further improvement of this solution, the outer profile of the breachable slot in the second baffle is smaller than the outer profile of the breachable slot in the first baffle.

As a further improvement of this technical scheme, power take off mechanism includes clamp plate and support, the bottom surface of clamp plate extrudees rubbish as the contact surface under receiving external effect, the support sets up the one side at the clamp plate, the support is "L" shape structure, the one end at support top sets up the connecting plate, the bottom and the clamp plate of connecting plate rotate to be connected, be provided with oblique pneumatic cylinder between connecting plate and the clamp plate, the flexible end of oblique pneumatic cylinder is provided with the slider, the slide has been seted up on the clamp plate in the direction that corresponds the slider removal, slider and slide sliding connection, wherein:

the inclined hydraulic cylinder is rotationally connected with the sliding block and the connecting plate;

and one end of the bottom of the support is provided with a vertical hydraulic cylinder.

As a further improvement of this technical scheme, be provided with the water conservancy diversion seat in the filtration liquid treatment cell body, water conservancy diversion seat top is "V" shape structure, forms the disposable sap cavity at water conservancy diversion seat top, and the water conservancy diversion seat of "V" shape structure makes the bottom that can treat the sap cavity form a turning, and the corner is provided with the back flow, the one end and the disposable sap cavity intercommunication of back flow, the other end pass filtration liquid treatment cell body, and the one end that passes filtration liquid treatment cell body sets up the spring pipe, the back flow passes through the spring pipe and is connected with the clamp plate, wherein:

a cavity is formed in the pressing plate, and a plurality of spray holes are formed in the bottom of the pressing plate.

As a further improvement of the technical scheme, the bottom of the liquid treatment cavity is provided with a filter assembly, the filter assembly comprises an activated carbon filter layer, a biological filter layer and a gravel filter layer, wherein:

activated carbon particles are filled in the activated carbon filter layer;

activated sludge is filled in the biological filter layer;

gravel is filled in the gravel filtering layer.

Compared with the prior art, the invention has the beneficial effects that:

1. in the garbage leachate high-efficiency treatment method, an initial drainage channel is formed through a bearing mechanism and two drainage channels of the drainage channel are washed, the two formed drainage channels are used for conducting drainage operation in stages on discharged moisture, the initial drainage channel formed in the initial stage directly discharges the high-concentration leachate in the stage, the washing drainage channel formed in the washing stage conducts drainage on the low-concentration leachate, the low-concentration leachate is independently stored in a leachate treatment tank, the problem that the garbage and moisture are separately treated to cause the garbage accumulation after treatment and form the leachate is solved, and the leachate with high concentration and low concentration cannot be separately treated.

2. In the high-efficiency treatment method of the landfill leachate, a negative pressure pump drives low-concentration leachate in a treatable liquid cavity A to enter a return pipe, the low-concentration leachate enters a cavity arranged in a pressing plate through the return pipe by a spring pipe, then a plurality of spray holes are formed in the bottom of the pressing plate, the low-concentration leachate entering the cavity is sprayed on the garbage through the spray holes, the garbage is washed, and the washed leachate returns to the treatable liquid cavity A again, so that a circulating washing process is formed, and the attachment amount of the leachate on the garbage is reduced.

3. In the high-efficiency treatment method of the landfill leachate, the bottom of the treatable liquid cavity A is provided with the filter assembly, and the low-concentration leachate is treated by the activated carbon filter layer, the biological filter layer and the gravel filter layer of the filter assembly, so that the quality of the confluent leachate is improved.

Drawings

FIG. 1 is an overall process step flow diagram of the present invention;

FIG. 2 is a schematic view of the overall structure of the present invention;

FIG. 3 is a sectional view showing the internal structure of a percolate treatment tank body according to the present invention;

FIG. 4 is a schematic structural view of a load bearing assembly of the present invention;

FIG. 5 is a schematic side view of the load bearing assembly and breachable isolator assembly of the present invention;

FIG. 6 is a schematic diagram of a breakable isolation assembly according to the present invention;

FIG. 7 is a schematic view of a force output mechanism of the present invention;

FIG. 8 is a schematic structural view of the platen turnover principle of the present invention;

FIG. 9 is a schematic view of the pressing principle of the pressing plate of the present invention;

FIG. 10 is a schematic view of a position structure of the capacity expansion assembly of the present invention;

FIG. 11 is a schematic view of the structure of the expansion assembly of the present invention;

FIG. 12 is a schematic view of the pressing base of the present invention;

FIG. 13 is a schematic view of the internal structure of the disposable fluid chamber of the present invention.

The various reference numbers in the figures mean:

100. a percolate treatment tank body;

110. a waste liquid discharge port; 100A, a disposable liquid cavity; 120. a capacity expansion component; 121. a flash plate; 122. a fixing plate; 1221. a guide groove; 130. a flow guide seat; 140. a filter assembly; 141. an active carbon filter layer; 142. a biological filter layer; 143. a gravel filter layer; 150. a return pipe; 151. a negative pressure pump; 152. a spring tube;

200. a carrying mechanism;

210. a load bearing assembly; 211. a bounding frame; 212. a carrier plate; 212A, a bearing cavity; 212B, a hydropathy cavity; 2121. a circulation tank; 213. a bursting plate; 214. a traveler; 2141. a projecting ring; 2142. a connecting spring;

220. the isolation component can be broken through; 221. a first separator; 222. a second separator; 220A, a waste liquid cavity; 223. the groove can be broken; 2231. a first seal plate; 2232. a second seal plate;

300. a force output mechanism; 310. pressing a plate; 311. a slideway; 312. pressing a base; 320. a support; 321. a vertical hydraulic cylinder; 322. a connecting plate; 323. an inclined hydraulic cylinder; 3231. a slide block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

The invention provides a high-efficiency treatment method of landfill leachate, which treats the leachate generated in the garbage, because the daily garbage contains water in the process of stacking or placing and the leachate can be generated under the influence of rain, snow and other water after entering a landfill (the leachate is high-concentration organic wastewater formed by deducting the saturated water holding capacity of the garbage and a soil covering layer and passing through the garbage layer and the soil covering layer), please refer to fig. 1 and fig. 2, and the invention treats the leachate by the following method steps:

step one, putting the garbage into a leachate treatment tank body 100, and carrying the garbage through a carrying mechanism 200 arranged at the top of the leachate treatment tank body 100;

step two, the force output mechanism 300 outputs force, so that the pressure end of the force output mechanism 300 is contacted with the garbage in the bearing mechanism 200 to form a contact surface;

step four, two drainage channels are formed through the bearing mechanism 200, and the discharged moisture is subjected to staged drainage operation by utilizing the two formed drainage channels, and the staged drainage operation is specifically divided into an initial stage and a flushing stage (the formed channels are the initial drainage channel and the flushing drainage channel); in the initial stage, because the concentration of the percolate is high and the treatment difficulty is high, the high-concentration percolate in the initial stage is directly discharged through an initial drainage channel formed in the initial stage; in the flushing stage, because the primary leachate accumulated or placed in the earlier stage in the garbage is discharged, a small part of leachate attached to the garbage needs to be flushed, the concentration of the leachate influenced by water flow in the stage is also reduced, and the low-concentration leachate can be separately stored for later use, namely, the low-concentration leachate is drained by a flushing drainage channel formed in the flushing stage, so that the low-concentration leachate is separately stored in the leachate treatment tank body 100;

as shown in fig. 3, the bearing assembly 210 is disposed on the top of the breakable isolation assembly 220 for bearing the garbage, and as shown in fig. 5, the breakable isolation assembly 220 includes a first partition 221 and a second partition 222, the first partition 221 is disposed on the top of the second partition 222, and a waste liquid chamber 220A is formed therebetween.

When in use, the force output mechanism 300 is used as the output end of force to extrude the garbage in the bearing component 210, and drives the bearing component 210 to move downwards under the action of pressure, the bottom of the bearing component 210 is provided with a protruding end, so that the protruding end moving downwards breaks through the first partition 221 first, an initial drainage channel is formed by the waste liquid cavity 220A, one side of the outer side wall of the percolate treatment tank body 100 corresponding to the waste liquid cavity 220A is provided with a waste liquid discharge port 110, the high-concentration percolate extruded from the bearing component 210 is discharged from the waste liquid discharge port 110 through the initial drainage channel, the protruding end continuously moves downwards to break through the second partition 222, at this time, the protruding end forms a flushing drainage channel, the low-concentration percolate generated during flushing flows into the bottom of the percolate treatment tank body 100 through the flushing drainage channel, and the specific principle is disclosed by the following embodiments,

in a first embodiment, a bearing assembly 210 is disclosed on the basis of the above structure, please refer to fig. 4, the bearing assembly 210 includes a limiting frame 211 and a bearing plate 212, the limiting frame 211 is fixedly connected to the inner sidewall of the leachate treatment tank 100, the bearing plate 212 is movably disposed at the bottom of the limiting frame 211, a bearing cavity 212A is formed by the bearing plate 212 to seal the bottom of the limiting frame 211, the bearing cavity 212A provides a space for bearing garbage, and the bearing plate 212 is provided with a plurality of flow grooves 2121, leachate generated in the bearing cavity 212A flows downward through the flow grooves 2121, as shown in fig. 5, the bottom of the bearing plate 212 is provided with a plurality of sets of bursting plates 213, protruding ends are formed by the bursting plates 213, under the condition that no external pressure is applied after the bearing cavity 212A bears garbage, the bursting plates 213 cannot burst through the first partition 221, so that a liquid accumulation cavity 212B is formed between the bearing plate 212 and the first partition 221 by the support of the bursting plates 213, the high-concentration percolate flowing down the circulation groove 2121 is pre-stored in the liquid accumulation cavity 212B, the first partition 221 can be broken through by applying pressure to the outside to break the plate 213, and then the high-concentration percolate in the liquid accumulation cavity 212B is discharged from the waste liquid discharge port 110 through the initial drainage channel;

the output of the pressure is continuously maintained, the breakthrough plate 213 breaks through the second partition plate 222, at this time, the low-concentration leachate generated by flushing flows into the disposable liquid cavity 100A through the flushing drainage channel, and the disposable liquid cavity 100A is formed by the second partition plate 222 in cooperation with the inner side wall of the leachate treatment tank body 100 in a sealing manner.

It should be noted that, a plurality of breakthrough plates 213 are arranged in each group, a gap is formed between two adjacent breakthrough plates 213, and the percolate is circulated through the gap between the breakthrough plates 213 after the first partition 221 or the second partition 222 is breached, that is, the initial drainage channel is formed by combining the gap with the waste liquid cavity 220A, and the flushing drainage channel is formed by independently forming the gap.

In the second embodiment, the movable connection manner between the bearing plate 212 and the limiting frame 211 is improved based on the first embodiment, because the breakthrough plate 213 in the first embodiment can support the bearing plate 212, but the gravity of the garbage can make the breakthrough plate 213 have a tendency to breakthrough the first partition 221, the first partition 221 and the second partition 222 are also disclosed herein, referring to fig. 6, a plurality of breakthrough grooves 223 are formed in the positions of the first partition 221 and the second partition 222 corresponding to the plurality of sets of breakthrough plates 213, a first sealing plate 2231 and a second sealing plate 2232 are respectively arranged on both axial sides of each set of breakthrough plate 213 in the breakthrough groove 223, the first sealing plate 2231 and the second sealing plate 2232 are both elastic structures (e.g. plastic rubber and flexible plastic), the first sealing plate 2231 and the second sealing plate 2232 are tightly attached to seal the liquid accumulation cavity 212B without applying pressure from the outside, the first sealing plate 2231 and the second sealing plate 2232 are also used to cooperate with the breakthrough plate 213 to support the bearing plate 212, although the gravity of the garbage can also bend the first sealing plate 2231 and the second sealing plate 2232, and the requirement for the elastic limit of the first sealing plate 2231 and the second sealing plate 2232 is higher, which is a place to be improved in this embodiment, please refer to fig. 4 and 5, sliding columns 214 are disposed at four corners of the top of the bearing plate 212, the sliding columns 214 are slidably connected with the limiting frame 211, the limiting frame 211 is located at the sliding columns 214 to form a sliding slot, a protruding ring 2141 is disposed outside the sliding columns 214, and a connecting spring 2142 is disposed between the protruding ring 2141 and the inner wall of the sliding slot.

When the garbage can is used, the contact surface presses garbage, a plurality of gaps are formed when the garbage is accumulated, the garbage also contains moisture, the bearing plate 212 is kept immovable under the action of the connecting spring 2142, so the garbage is compressed in the earlier stage of pressing the garbage to discharge the moisture, then the garbage is compacted, the pressing force directly acts on the bearing plate 212 through the garbage, the pressing force cannot be overcome under the action of the connecting spring 2142, then the bearing plate 212 drives the bursting plate 213 to move downwards to break through the first sealing plate 2231 and the second sealing plate 2232 on the first partition plate 221, after the bursting plate 213 passes through the bursting groove 223 on the first partition plate 221, high-concentration percolate in the liquid accumulating cavity 212B enters the waste liquid cavity 220A through the gap through the bursting groove 223, and the high-concentration percolate is collected by the liquid accumulating cavity 212B and discharged from the waste liquid outlet 110 through the waste liquid cavity 220A, the efficiency of discharging high-concentration percolate is greatly improved, and the continuity of downward movement of the breakthrough plate 213 is also ensured;

the bursting plate 213 moves downwards continuously, the bursting plate 213 moving downwards presses the first sealing plate 2231 and the second sealing plate 2232 on the second clapboard 222 to burst through the bursting groove 223 on the second clapboard 222, and the low-concentration percolate generated by flushing passes through the bursting groove 223 through the gap of the bursting plate 213 and enters the disposable liquid cavity 100A;

after the pressing surface stops pressing, the bearing plate 212 is reset by the elastic force of the connecting spring 2142, and moves up synchronously with the pressing surface during the resetting process.

It should be noted that the external contour of the breakable groove 223 of the second partition plate 222 is smaller than the external contour of the breakable groove 223 of the first partition plate 221, so that when the first partition plate 221 is broken through, the first sealing plate 2231 and the second sealing plate 2232 of the breakable groove 223 of the first partition plate 221 can be attached to the second partition plate 222, and the low-concentration percolate can flow into the breakable groove 223 of the second partition plate 222.

In a third embodiment, please refer to fig. 7, the force output mechanism 300 includes a pressing plate 310 and a bracket 320, the bottom surface of the pressing plate 310 is used as a contact surface to press the garbage under the external action, in order to facilitate the garbage throwing, the bracket 320 is disposed at one side of the pressing plate 310, the bracket 320 is in an "L" shape, one end of the top of the bracket 320 is provided with a connecting plate 322, the bottom end of the connecting plate 322 is rotatably connected with the pressing plate 310, then an inclined hydraulic cylinder 323 is disposed between the connecting plate 322 and the pressing plate 310, a sliding block 3231 is disposed at the telescopic end of the inclined hydraulic cylinder 323, a sliding way 311 is disposed on the pressing plate 310 in the direction corresponding to the movement of the sliding block 3231, the sliding block 3231 is slidably connected with the sliding way 311, the inclined hydraulic cylinder 323 is rotatably connected with the sliding block 3231 and the connecting plate 322, please refer to fig. 8, when the material is required to be thrown, the piston rod as the telescopic end of the inclined hydraulic cylinder 323 is retracted (in the direction of arrow b in fig. 8), then the pressing plate 310 rotates counterclockwise (arrow a direction in fig. 8), at this time, an opening is formed between one side of the pressing plate 310 away from the connecting plate 322 and the bearing cavity 212A, the garbage is thrown through the opening, and the slide block 3231 slides in the slide way 311 (arrow c direction in fig. 8) during the rotation;

during extrusion, please refer to fig. 9, the pressing plate 310 is reset to a state parallel to the bearing plate 212 by the pushing of the piston rod of the inclined hydraulic cylinder 323 (but the bearing plate 212 may be disposed obliquely, which is beneficial to the flow of leachate and is also convenient for the flow of garbage), one end of the bottom of the bracket 320 is provided with the vertical hydraulic cylinder 321, the piston rod at the telescopic end of the vertical hydraulic cylinder 321 drives the bracket 320 to move downward (the direction of the arrow e in fig. 9), at this time, the connecting plate 322 and the bracket 320 are connected to form a "U" -shaped structure, which provides enough space for the downward movement of the bracket 320, the pressing plate 310 parallel to the bearing plate 212 can extrude the garbage after the bracket 320 moves downward (the arrow d in fig. 9 is the pressing direction of the pressing plate 310), at this time, the bracket 320 cooperates with the vertical hydraulic cylinder 321 to output the force on the pressing plate 310, so that the pressing plate 310 becomes a pressure end.

It should be noted that other pressure output devices (for example, a motor gear drives the platen 310 to move downward to output pressure) may be directly applied to the platen 310 to push the platen 310 downward.

In a fourth embodiment, in order to increase the garbage capacity in the bearing cavity 212A, please refer to fig. 10 and 11, a capacity expansion assembly 120 is disposed at the top of the leachate treatment tank 100, the capacity expansion assembly 120 includes a capacity expansion plate 121 and a fixing plate 122, the capacity expansion plate 121 is disposed around the top of the leachate treatment tank 100 for extending the top of the bearing cavity 212A to increase the capacity in the bearing cavity 212A, and a joint of the capacity expansion plate 121 and the leachate treatment tank 100 is fixedly connected by the fixing plate 122.

In addition, a guide groove 1221 is formed in the position of the fixing plate 122 corresponding to the bracket 320, and the bracket 320 is guided by the guide groove 1221, so as to improve the stability of the downward movement of the bracket 320.

In the fifth embodiment, considering that the bearing plate 212 is separated from the limiting frame 211 after being squeezed, a gap is formed between the limiting frame 211 and the bearing plate 212, so that garbage is easily clamped in the gap, for this reason, as shown in fig. 12, a pressing seat 312 is disposed at the bottom of a pressing plate 310, a compression cavity is disposed in the pressing seat 312, after the pressing plate 310 moves down, the pressing seat 312 is attached to the bearing plate 212, and then the compression cavity is sealed, so that garbage is limited, and garbage is prevented from being clamped in the gap.

In the sixth embodiment, in order to utilize the low-concentration leachate in the treatable liquid cavity 100A, please refer to fig. 13, a guiding seat 130 is disposed in the leachate treatment tank 100, the top of the guiding seat 130 is a "V" shaped structure, the treatable liquid cavity 100A is formed at the top of the guiding seat 130, the guiding seat 130 of the "V" shaped structure makes the bottom of the treatable liquid cavity 100A form a corner, then the low-concentration leachate entering the treatable liquid cavity 100A is concentrated at the corner, a return pipe 150 is disposed at the corner, one end of the return pipe 150 is communicated with the treatable liquid cavity 100A, the other end passes through the leachate treatment tank 100 and is connected with the pressure plate 310 through a spring pipe 152, the spring pipe 152 adapts to the movement of the pressure plate 310, a negative pressure pump 151 is disposed outside the return pipe 150, during operation, the negative pressure pump 151 drives the low-concentration leachate in the treatable liquid cavity 100A to enter the return pipe 150, and enters the cavity disposed in the pressure plate 310 through the spring pipe 150, then, the bottom of the pressing plate 310 is provided with a plurality of spray holes, the low-concentration percolate entering the cavity is sprayed on the garbage through the spray holes to flush the garbage, and the flushed percolate flows back to the liquid-treating cavity 100A, so that a cyclic flushing process is formed.

It should be noted that, the bottom of the liquid treatment cavity 100A is provided with the filter assembly 140, the filter assembly 140 includes an activated carbon filter layer 141, a biological filter layer 142 and a gravel filter layer 143, activated carbon particles are filled in the activated carbon filter layer 141, and are used for performing adsorption treatment on low-concentration leachate, activated sludge is filled in the biological filter layer 142, so as to perform aerobic treatment on the low-concentration leachate, gravel is filled in the gravel filter layer 143, so as to perform filtration treatment, and the low-concentration leachate after being treated by the activated carbon filter layer 141, the biological filter layer 142 and the gravel filter layer 143 can be subjected to back flow flushing.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A method for efficiently treating landfill leachate is characterized by comprising the following steps:

step one, putting the garbage into a percolate treatment tank body (100), and carrying the garbage through a carrying mechanism (200) arranged at the top of the percolate treatment tank body (100);

step two, the force output mechanism (300) outputs force, so that the pressure end of the force output mechanism (300) is in contact with the garbage in the bearing mechanism (200) to form a contact surface;

step four, two drainage channels are formed through the bearing mechanism (200), namely an initial drainage channel and a flushing drainage channel, the discharged moisture is subjected to drainage operation in stages by utilizing the two formed drainage channels, and the high-concentration percolate in the stage is directly discharged through the initial drainage channel in the initial stage; the garbage is washed in the washing stage, and low-concentration percolate formed after washing flows downwards through a washing drainage channel and is independently stored in a percolate treatment tank body (100);

wherein the bearing mechanism (200) comprises a bearing assembly (210) and a breachable barrier assembly (220), the bearing assembly (210) is arranged on the top of the breachable barrier assembly (220), the breachable barrier assembly (220) comprises a first partition (221) and a second partition (222), the first partition (221) is arranged on the top of the second partition (222), and the first partition (221) is arranged between the second partitions (222) to form a waste liquid chamber (220A);

the bottom of the bearing component (210) is provided with a protruding end, the force output mechanism (300) is used as a force output end to extrude garbage in the bearing component (210), the bearing component (210) is driven to move downwards under the action of pressure, the protruding end is used for breaking through the first partition plate (221) when moving downwards so as to form an initial drainage channel by means of the waste liquid cavity (220A), the protruding end continuously moves downwards to break through the second partition plate (222), and the protruding end forms a washing drainage channel by itself.

2. The method for efficiently treating the landfill leachate according to claim 1, wherein the method comprises the following steps: the bearing component (210) comprises a limiting frame (211) and a bearing plate (212), the limiting frame (211) is fixedly connected to the inner side wall of the percolate treatment tank body (100), the bearing plate (212) is movably arranged at the bottom of the limiting frame (211), and a bearing cavity (212A) is formed by the bearing plate (212) for sealing the bottom of the limiting frame (211), wherein:

the bearing plate (212) is provided with a plurality of circulation grooves (2121);

the bottom of the bearing plate (212) is provided with a plurality of groups of bursting plates (213), and protruding ends are formed through the bursting plates (213).

3. The method for efficiently treating the landfill leachate according to claim 2, wherein the method comprises the following steps: the burst plate (213) is supported by the first partition plate (221) under the condition that no external pressure is applied after the bearing cavity (212A) bears the garbage, so that a liquid accumulation cavity (212B) is formed between the bearing plate (212) and the first partition plate (221).

4. The method for efficiently treating the landfill leachate according to claim 2, wherein the method comprises the following steps: four corners at the top of the bearing plate (212) are provided with sliding columns (214), the sliding columns (214) are connected with a limiting frame (211) in a sliding mode, the limiting frame (211) is located at the sliding columns (214) to form a sliding groove, protruding rings (2141) are arranged outside the sliding columns (214), connecting springs (2142) are arranged between the protruding rings (2141) and the inner wall of the sliding groove, and a liquid accumulating cavity (212B) is formed between the bearing plate (212) and the first partition plate (221) under the action of the connecting springs (2142).

5. The method for efficiently treating the landfill leachate according to claim 2, wherein the method comprises the following steps: the position that first baffle (221) and second baffle (222) correspond multiunit bursting plate (213) has seted up a plurality of can bursting groove (223), can bursting groove (223) in every group bursting plate (213) axial both sides be provided with first shrouding (2231) and second shrouding (2232) respectively, first shrouding (2231) and second shrouding (2232) are elastic construction, first shrouding (2231) and second shrouding (2232) closely laminate under the external condition of not exerting pressure.

6. The method for efficiently treating the landfill leachate of claim 5, wherein the method comprises the following steps: a plurality of rupture plates (213) in each group are arranged, and a gap is formed between every two adjacent rupture plates (213).

7. The method for efficiently treating the landfill leachate of claim 5, wherein the method comprises the following steps: the external contour of the breakable groove (223) on the second partition (222) is smaller than the external contour of the breakable groove (223) on the first partition (221).

8. The method for efficiently treating the landfill leachate according to claim 1, wherein the method comprises the following steps: force output mechanism (300) includes clamp plate (310) and support (320), the bottom surface of clamp plate (310) is as the contact surface, is receiving external effect extrusion rubbish down, support (320) set up the one side at clamp plate (310), support (320) are "L" shape structure, the one end at support (320) top sets up connecting plate (322), the bottom and clamp plate (310) of connecting plate (322) rotate to be connected, be provided with oblique pneumatic cylinder (323) between connecting plate (322) and clamp plate (310), the flexible end of oblique pneumatic cylinder (323) is provided with slider (3231), slide (311) have been seted up in the direction that corresponds slider (3231) removal on clamp plate (310), slider (3231) and slide (311) sliding connection, wherein:

the inclined hydraulic cylinder (323) is rotationally connected with the sliding block (3231) and the connecting plate (322);

one end of the bottom of the support (320) is provided with a vertical hydraulic cylinder (321).

9. The method for efficiently treating landfill leachate according to claim 8, wherein the method comprises the following steps: be provided with water conservancy diversion seat (130) in filtration liquid processing cell body (100), water conservancy diversion seat (130) top is "V" shape structure, but form disposable sap cavity (100A) at water conservancy diversion seat (130) top, the water conservancy diversion seat (130) of "V" shape structure make the bottom of disposable sap cavity (100A) form a corner, the corner is provided with back flow (150), the one end and the disposable sap cavity (100A) intercommunication of back flow (150), the other end passes filtration liquid processing cell body (100), the one end of passing filtration liquid processing cell body (100) sets up spring pipe (152), back flow (150) are connected with clamp plate (310) through spring pipe (152), wherein:

a cavity is arranged in the pressing plate (310), and a plurality of spray holes are formed in the bottom of the pressing plate (310).

10. The method for efficiently treating the landfill leachate of claim 9, wherein the method comprises the following steps: the bottom of the liquid-treating cavity (100A) is provided with a filtering component (140), the filtering component (140) comprises an activated carbon filtering layer (141), a biological filtering layer (142) and a gravel filtering layer (143), wherein:

activated carbon particles are filled in the activated carbon filtering layer (141);

activated sludge is filled in the biological filter layer (142);

gravel is filled in the gravel filter layer (143).