CN114804520B - Efficient treatment method for landfill leachate - Google Patents
Efficient treatment method for landfill leachate Download PDFInfo
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- CN114804520B CN114804520B CN202210428521.1A CN202210428521A CN114804520B CN 114804520 B CN114804520 B CN 114804520B CN 202210428521 A CN202210428521 A CN 202210428521A CN 114804520 B CN114804520 B CN 114804520B
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- 238000000034 method Methods 0.000 title claims abstract description 37
- 239000000149 chemical water pollutant Substances 0.000 title claims abstract description 19
- 239000010813 municipal solid waste Substances 0.000 claims abstract description 80
- 230000007246 mechanism Effects 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims description 46
- 238000005192 partition Methods 0.000 claims description 41
- 238000011010 flushing procedure Methods 0.000 claims description 29
- 238000007789 sealing Methods 0.000 claims description 27
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 21
- 239000002699 waste material Substances 0.000 claims description 15
- 238000002955 isolation Methods 0.000 claims description 12
- 230000009471 action Effects 0.000 claims description 10
- 238000009825 accumulation Methods 0.000 claims description 9
- 238000001125 extrusion Methods 0.000 claims description 6
- 238000011068 loading method Methods 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 210000005056 cell body Anatomy 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000010802 sludge Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 2
- 230000006872 improvement Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000011197 physicochemical method Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 229920002457 flexible plastic Polymers 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000011034 membrane dialysis Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000009279 wet oxidation reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B9/00—Presses specially adapted for particular purposes
- B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
- B30B9/04—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using press rams
- B30B9/06—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using press rams co-operating with permeable casings or strainers
- B30B9/062—Extrusion presses
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to the technical field of leachate treatment, in particular to a high-efficiency treatment method of landfill leachate. Firstly, putting garbage into a percolate treatment tank body, and carrying the garbage through a carrying mechanism arranged at the top of the percolate treatment tank body; step two, the force output mechanism outputs force, so that the pressure end of the force output mechanism contacts with garbage in the bearing mechanism to form a contact surface; step three, the pressure end moves downwards to enable the contact surface to squeeze 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, two formed drainage channels are utilized to conduct staged drainage operation on discharged water, so that the problem that the treated garbage is piled up to form percolate in a mode of separating garbage from water is solved, and the percolate with high and bottom concentration cannot be separated.
Description
Technical Field
The invention relates to the technical field of leachate treatment, in particular to a high-efficiency treatment method of landfill leachate.
Background
The landfill leachate is high-concentration organic wastewater which is formed by deducting saturated water holding capacity of garbage and an overburden layer and passing through the garbage layer and the overburden layer from water contained in the garbage in a landfill, rain and snow water entering the landfill and other water;
The properties of landfill leachate vary with the time of operation of the landfill, which is mainly determined by the stabilization process of the landfill; the stabilization process of landfill sites 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 physicochemical method mainly comprises a plurality of methods such as active carbon adsorption, chemical precipitation, density separation, chemical oxidation, chemical reduction, ion exchange, membrane dialysis, gas-mentioned wet oxidation method and the like, and when the COD is 2000-4000 mg/L, the COD removal rate of the physicochemical method can reach 50% -87%; compared with biological treatment, the physical and chemical treatment is not influenced by the fluctuation of water quality and water quantity, the water quality of the effluent is stable, and particularly, the treatment effect on garbage leachate which is difficult to biologically treat and has a low BOD5/COD ratio (0.07-0.20) is better.
Many times, the percolating water in the garbage is extruded, then the needle percolating water is treated independently, the garbage with the water removed is in a stacked state again, a small amount of percolate is still attached to the surface of the garbage in the state, a large amount of percolate is still generated if the garbage is not treated in time, the concentration of the percolate formed by initial extrusion after garbage stacking is high, the concentration of the percolate generated by the garbage washing treatment in the later stage is low, the garbage and the percolate are not combined and then operated together, and drainage is not performed according to different stages of the percolate concentration.
Disclosure of Invention
The invention aims to provide a high-efficiency treatment method for landfill leachate, which aims to solve the problems in the background technology.
In order to achieve the above purpose, a method for efficiently treating landfill leachate is provided, which comprises the following steps:
Firstly, putting garbage into a percolate treatment tank body, and carrying the garbage through a carrying mechanism arranged at the top of the percolate treatment tank body;
step two, the force output mechanism outputs force, so that the pressure end of the force output mechanism contacts with garbage in the bearing mechanism to form a contact surface;
Step three, the pressure end moves downwards to enable the contact surface to squeeze the garbage, and the moisture in the garbage is fully discharged after being pressed;
Step four, forming two drainage channels, namely an initial drainage channel and a flushing drainage channel through a bearing mechanism, performing staged drainage operation on discharged water by using the formed two drainage channels, and directly discharging high-concentration percolate at the stage through the initial drainage channel at the initial stage; flushing the garbage in a flushing stage, and enabling low-concentration percolate formed after flushing to flow downwards through a flushing drainage channel so as to independently store the low-concentration percolate in a percolate treatment tank body;
the bearing mechanism comprises a bearing assembly and a breakthrough isolation assembly, the bearing assembly is arranged at the top of the breakthrough isolation assembly, the breakthrough 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 second partition plates;
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 board when moving downwards, an initial drainage channel is formed by means of the waste liquid cavity, the protruding end is continuously moved downwards to break through the second partition board, and the protruding end forms a flushing drainage channel.
As the further improvement of this technical scheme, the carrier assembly includes restriction frame and loading board, restriction frame fixed connection is on the inside wall of percolate treatment cell body, the mobilizable bottom that sets up at restriction frame of loading board forms the bearing chamber to restriction frame bottom shutoff through the loading board, wherein:
A plurality of circulation grooves are formed in the bearing plate;
The bottom of the bearing plate is provided with a plurality of groups of breakthrough plates, and protruding ends are formed through the breakthrough plates.
As a further improvement of the technical scheme, the breakthrough plate is supported by the first partition plate under the condition that no external pressure is applied after the bearing cavity bears 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 at the top of the bearing plate are provided with slide columns, the slide columns are in sliding connection with limiting frames, the limiting frames are located at the slide columns to form sliding grooves, protruding rings are arranged outside the slide columns, connecting springs are arranged between the protruding rings and the inner walls of the sliding grooves, and a liquid accumulation cavity is formed between the bearing plate and the first partition plate through the action of the connecting springs.
As a further improvement of the technical scheme, a plurality of breakthrough grooves are formed in the positions, corresponding to the plurality of groups of breakthrough plates, of the first partition plate and the second partition plate, and a first sealing plate and a second sealing plate are respectively arranged on two sides of each group of breakthrough plates in the breakthrough grooves in the axial direction, and are of elastic structures, so that the first sealing plate and the second sealing plate are closely attached under the condition that no pressure is applied to the outside.
As a further improvement of the technical scheme, a plurality of breakthrough plates in each group are arranged, and a gap is formed between two adjacent breakthrough plates.
As a further improvement of the present solution, the external profile of the breakthroughs in the second partition is smaller than the external profile of the breakthroughs in the first partition.
As the further improvement of this technical scheme, force output mechanism includes clamp plate and support, the bottom surface of clamp plate is as the contact surface, is receiving the extrusion rubbish under the external effect, the support sets up in one side of 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 in the direction that corresponds the slider and removes on the clamp plate, slider and slide sliding connection, wherein:
The inclined hydraulic cylinder is rotationally connected with the sliding block and the connecting plate;
one end of the bottom of the support is provided with a vertical hydraulic cylinder.
As a further improvement of the technical scheme, a guide seat is arranged in the percolate treatment tank body, the top of the guide seat is of a V-shaped structure, a treatable liquid cavity is formed at the top of the guide seat, the guide seat of the V-shaped structure enables the bottom of the treatable liquid cavity to form a corner, a return pipe is arranged at the corner, one end of the return pipe is communicated with the treatable liquid cavity, the other end of the return pipe penetrates through the percolate treatment tank body, a spring pipe is arranged at one end of the percolate treatment tank body, and the return pipe is connected with a pressing plate through the spring pipe, wherein:
the pressing plate is internally provided with a cavity, and the bottom of the pressing plate is provided with a plurality of spray holes.
As a further improvement of the technical scheme, the bottom of the treatable liquid cavity is provided with a filter assembly, and the filter assembly comprises an active 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;
the gravel pack is filled with gravel.
Compared with the prior art, the invention has the beneficial effects that:
1. In the garbage leachate high-efficiency treatment method, two drainage channels, namely an initial drainage channel and a flushing drainage channel, are formed through a bearing mechanism, the two formed drainage channels are utilized to conduct staged drainage operation on discharged water, high-concentration leachate at the stage is directly discharged through the initial drainage channel formed at the initial stage, low-concentration leachate is drained through the flushing drainage channel formed at the flushing stage, and the low-concentration leachate is singly stored in a leachate treatment tank body, so that the problem that garbage accumulation after garbage and water are separated is solved, leachate is formed, and the high-concentration leachate and the low-concentration leachate cannot be separated.
2. In the high-efficiency treatment method for the landfill leachate, the negative pressure pump drives the low-concentration leachate in the treatable liquid cavity A to enter the return pipe, the low-concentration leachate enters the cavity arranged in the pressing plate through the spring pipe and enters the return pipe, then the bottom of the pressing plate is provided with a plurality of spray holes, the low-concentration leachate entering the cavity is sprayed on the garbage through the spray holes to flush the garbage, and the flushed leachate flows back to the treatable liquid cavity A, so that a circulating flushing process is formed, and the adhesion quantity of the leachate on the garbage is reduced.
3. In the garbage leachate high-efficiency treatment method, the bottom of the treatable liquid cavity A is provided with the filter component, and low-concentration leachate is treated by the active carbon filter layer, the biological filter layer and the gravel filter layer of the filter component, so that the water quality of converging flushing leachate is improved.
Drawings
FIG. 1 is an overall method step outflow block diagram of the present invention;
FIG. 2 is a schematic diagram of the overall structure of the present invention;
FIG. 3 is a cross-sectional view showing the internal structure of the percolate treatment tank according to the invention;
FIG. 4 is a schematic view of a carrier assembly according to the present invention;
FIG. 5 is a schematic side view of a load bearing assembly and a breachable isolation assembly according to the present invention;
FIG. 6 is a schematic diagram of a break-through isolation assembly according to the present invention;
FIG. 7 is a schematic diagram of a force output mechanism according to the present invention;
FIG. 8 is a schematic diagram of the principle of turning a platen according to the present invention;
FIG. 9 is a schematic view of the pressing plate pressing principle structure of the present invention;
FIG. 10 is a schematic diagram of a capacity expansion module according to the present invention;
FIG. 11 is a schematic diagram of a capacity expansion module according to the present invention;
FIG. 12 is a schematic view of a press seat according to the present invention;
FIG. 13 is a schematic view showing the internal structure of the disposable liquid chamber of the present invention.
The meaning of each reference sign in the figure is:
100. A percolate treatment tank body;
110. a waste liquid outlet; 100A, a treatable liquid chamber; 120. a capacity expansion assembly; 121. a capacity expansion plate; 122. a fixing plate; 1221. a guide groove; 130. a diversion 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 carrier assembly; 211. limiting the frame; 212. a carrying plate; 212A, a load bearing cavity; 212B, a effusion chamber; 2121. a flow channel; 213. breaking through the plate; 214. a spool; 2141. a protruding ring; 2142. a connecting spring;
220. The isolation component can be broken through; 221. a first separator; 222. a second separator; 220A, waste liquid chamber; 223. the groove can be broken through; 2231. a first sealing plate; 2232. a second sealing plate;
300. A force output mechanism; 310. a pressing plate; 311. a slideway; 312. pressing a base; 320. a bracket; 321. a vertical hydraulic cylinder; 322. a connecting plate; 323. an inclined hydraulic cylinder; 3231. a sliding block.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should 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", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The invention provides a high-efficiency treatment method of landfill leachate, which is used for treating leachate generated in garbage, because daily garbage contains water in the process of stacking or placing, and leachate (leachate, which is high-concentration organic wastewater formed by deducting the saturated water holding capacity of garbage and a soil covering layer and passing through the garbage layer and the soil covering layer) can appear under the influence of rain, snow and other water after entering a landfill, referring to the steps of the method shown in fig. 1 and 2, the invention is used for treating the leachate by the following steps:
firstly, putting 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 contacts with garbage in the bearing mechanism 200 to form a contact surface;
Step three, the pressure end moves downwards to enable the contact surface to squeeze the garbage, and the moisture in the garbage is fully discharged after being pressed;
Step four, two drainage channels are formed through the bearing mechanism 200, and the two formed drainage channels are utilized to conduct staged drainage operation on discharged water, and the drainage channels are 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 higher and the treatment difficulty is high, the high-concentration percolate in the stage is directly discharged through an initial drainage channel formed in the initial stage; in the flushing stage, because the main percolate formed by the earlier stage accumulation or placement of the garbage is discharged, a small part of the percolate attached to the garbage needs to be flushed, the influence concentration of water flow on the percolate in the stage is reduced, and the part of the low-concentration percolate can be independently stored for later use, namely, a flushing drainage channel formed in the flushing stage is used for draining the low-concentration percolate, so that the low-concentration percolate is independently stored in the percolate treatment tank body 100;
the carrying mechanism 200 includes a carrying assembly 210 and a breachable isolation assembly 220, as shown in fig. 3, the carrying assembly 210 is disposed at the top of the breachable isolation assembly 220 for carrying garbage, and as shown in fig. 5, the breachable isolation assembly 220 includes a first partition 221 and a second partition 222, the first partition 221 is disposed at 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 assembly 210, and drives the bearing assembly 210 to move downwards under the action of pressure, the bottom of the bearing assembly 210 is provided with a protruding end, the protruding end which moves downwards breaks through the first baffle 221, an initial drainage channel is formed by the waste liquid cavity 220A, the waste liquid outlet 110 is formed on one side of the outer side wall of the percolate treatment tank body 100 corresponding to the waste liquid cavity 220A, the high-concentration percolate extruded on the bearing assembly 210 is discharged from the waste liquid outlet 110 through the initial drainage channel, the protruding end can break through the second baffle 222 after being continuously moved downwards, the protruding end forms a flushing drainage channel at the moment, the low-concentration percolate generated during flushing flows into the bottom of the percolate treatment tank body 100 through the flushing drainage channel, the concrete principle is disclosed by the following embodiment,
In the first embodiment, as shown in fig. 4, the bearing assembly 210 is disclosed based on the above structure, the bearing assembly 210 includes 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 disposed at the bottom of the limiting frame 211, a bearing cavity 212A is formed by plugging the bottom of the limiting frame 211 through the bearing plate 212, the bearing cavity 212A is used for providing space for the bearing of garbage, a plurality of flow channels 2121 are formed on the bearing plate 212, percolate generated in the bearing cavity 212A flows down through the flow channels 2121, a plurality of groups of breakthrough plates 213 are disposed at the bottom of the bearing plate 212, protruding ends are formed by the breakthrough plates 213, and under the condition that no external pressure is applied to the bearing cavity 212A, the breakthrough plates 213 cannot break through the first partition 221, so that the high-concentration percolate flowing down through the flow channels 2121 can be pre-stored in the bearing cavity 212B, and can be discharged from the first partition plate 212B through the channel 110 as long as the pressure plate 213 is applied;
Continuing to maintain the output of pressure, the breakthrough plate 213 breaks through the second partition plate 222, and the low-concentration percolate formed by flushing flows into the treatable liquid chamber 100A through the flushing drainage channel, and the treatable liquid chamber 100A is formed by sealing the inner side wall of the percolate treatment tank body 100 by the second partition plate 222.
It should be noted that, the plurality of breakthrough plates 213 in each group are provided, a gap is formed between two adjacent breakthrough plates 213, and the percolate after breakthrough of the first partition 221 or the second partition 222 flows through the gap between the breakthrough plates 213, that is, the initial drainage channel is formed by combining the gap with the waste liquid chamber 220A, and the flushing drainage channel is formed by the gap independently.
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 in the first embodiment, although the breakthrough plate 213 can support the bearing plate 212, the gravity action of the garbage can make the breakthrough plate 213 have a tendency to break through the first partition plate 221, and here, the first partition plate 221 and the second partition plate 222 are also disclosed, and as shown in fig. 6, a plurality of breakthrough grooves 223 are formed in the positions of the first partition plate 221 and the second partition plate 222 corresponding to the plurality of groups of breakthrough plates 213, and a first sealing plate 2231 and a second sealing plate 2232 are respectively disposed on two axial sides of each group of breakthrough plates 213 in the breakthrough grooves 223, and the first sealing plate 2231 and the second sealing plate 2232 are both elastic structures (for example: plastic rubber and flexible plastic), under the condition that no pressure is applied from the outside, the first sealing plate 2231 and the second sealing plate 2232 are tightly attached to each other, so that the liquid accumulation cavity 212B is in a sealed state, and the first sealing plate 2231 and the second sealing plate 2232 are matched with the break-through plate 213 to support the bearing plate 212, nevertheless, the gravity action of the garbage can bend the first sealing plate 2231 and the second sealing plate 2232, and the elastic limit requirements of the first sealing plate 2231 and the second sealing plate 2232 are higher, which is also the place where improvement is needed in the embodiment, as shown in fig. 4 and 5, slide posts 214 are arranged at four corners of the top of the bearing plate 212, the slide posts 214 are in sliding connection with the limiting frame 211, a sliding groove is formed at the position of the limiting frame 211, a protruding ring 2141 is arranged outside the slide posts 214, and a connecting spring 2142 is arranged between the protruding ring 2141 and the inner wall of the sliding groove.
When the garbage is used, the contact surface extrudes garbage, a plurality of gaps are formed when the garbage is piled up, and the garbage also contains moisture, at the moment, the bearing plate 212 is kept motionless under the action of the connecting spring 2142, so that the garbage is mainly compressed in the earlier stage of extruding the garbage, the moisture is discharged, then after the garbage is compacted, the extrusion force at the moment can directly act on the bearing plate 212 through the garbage, the action of the connecting spring 2142 can not overcome the extrusion force, then the bearing plate 212 drives the breakthrough 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 breakthrough plate 213 passes through the breakthrough groove 223 on the first partition plate 221, the high-concentration percolate in the liquid accumulation cavity 212B can enter the waste cavity 220A through the gap and pass through the breakthrough groove 223, the high-concentration percolate is collected by the liquid accumulation cavity 212B to be discharged from the waste liquid discharge outlet 110 through the waste liquid cavity 220A, the efficiency of the high-concentration percolate discharging is greatly improved, and the continuity of the breakthrough plate 213 moving downwards is ensured;
The breakthrough plate 213 continues to move downward, and the breakthrough plate 213 moved downward presses the first seal plate 2231 and the second seal plate 2232 on the second separator 222 to break through the penetrable groove 223 on the second separator 222, so that the low-concentration percolate generated by the flushing passes through the penetrable groove 223 and enters the treatable liquid chamber 100A through the gap of the breakthrough plate 213;
After the pressing surface stops pressing, the bearing plate 212 is reset under the elastic force of the connecting spring 2142, and moves upwards synchronously with the pressing surface during resetting.
It should be noted that, the external profile of the breachable groove 223 on the second separator 222 is smaller than the external profile of the breachable groove 223 on the first separator 221, so that when the first separator 221 is breached, the first seal plate 2231 and the second seal plate 2232 in the breachable groove 223 on the first separator 221 can be attached to the second separator 222, so that the low concentration percolate flows into the breachable groove 223 on the second separator 222.
In a third embodiment, referring to fig. 7, the force output mechanism 300 includes a pressing plate 310 and a support 320, the bottom surface of the pressing plate 310 is used as a contact surface, garbage is extruded under the action of the outside, the support 320 is disposed at one side of the pressing plate 310, the support 320 is in an L-shaped structure, a connecting plate 322 is disposed at one end of the top of the support 320, the bottom end of the connecting plate 322 is rotationally 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 a telescopic end of the inclined hydraulic cylinder 323, a sliding way 311 is disposed on the pressing plate 310 in a direction corresponding to the sliding direction of the sliding block 3231, the sliding block 3231 is slidingly connected with the sliding way 311, the piston rod serving as a telescopic end of the inclined hydraulic cylinder 323 is retracted (in a direction of an arrow b in fig. 8), then the pressing plate 310 rotates anticlockwise (in a direction of an arrow a in fig. 8), an opening is formed between one side of the pressing plate 310 far away from the connecting plate 322 and the bearing cavity 212A, and garbage is thrown through the opening in the sliding way, and the sliding way 3231 slides in the sliding way in the direction 311 (in an arrow c in fig. 8) in the rotation, when the garbage is required to be thrown, as shown in fig. 8;
During extrusion, referring to fig. 9, the pressing plate 310 is reset to a state parallel to the carrier plate 212 by pushing the piston rod of the inclined hydraulic cylinder 323 (but here, the carrier plate 212 may be inclined, which is favorable for the flow of leachate and the flow of garbage, the vertical hydraulic cylinder 321 is disposed at one end of the bottom of the support 320, the piston rod at the telescopic end of the vertical hydraulic cylinder 321 drives the support 320 to move downwards (in the direction of arrow e in fig. 9), at this time, the connecting plate 322 and the support 320 are connected to form a "U" structure, so that enough space is provided for the downward movement of the support 320, the pressing plate 310 parallel to the carrier plate 212 after the downward movement of the support 320 can press the garbage (the arrow d in fig. 9 is the pressing direction of the pressing plate 310), and at this time, the support 320 cooperates with the vertical hydraulic cylinder 321 to output 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 pressing plate 310 to move downwards to output pressure) may directly act on the pressing plate 310, so as to push the pressing plate 310 to press downwards.
In order to increase the garbage capacity in the carrying chamber 212A, as shown in fig. 10 and 11, the top of the percolate treatment tank 100 is provided with a capacity expansion assembly 120, the capacity expansion assembly 120 includes a capacity expansion plate 121 and a fixing plate 122, and the capacity expansion plate 121 is disposed around the top of the percolate treatment tank 100 and is used for extending the top of the carrying chamber 212A to increase the capacity in the carrying chamber 212A, and the joint between the capacity expansion plate 121 and the percolate treatment tank 100 is fixedly connected by the fixing plate 122.
In addition, the fixing plate 122 is provided with a guide groove 1221 at a position corresponding to the bracket 320, and the bracket 320 is guided by the guide groove 1221, so as to improve the stability of downward movement of the bracket 320.
In the fifth embodiment, considering that the carrier plate 212 is separated from the limiting frame 211 after being pressed, a gap is formed between the limiting frame 211 and the carrier plate 212, so that the garbage is easy to be blocked in the gap, for this purpose, as shown in fig. 12, the bottom of the pressing plate 310 is provided with the pressing seat 312, the pressing seat 312 is provided with the compression cavity, after the pressing plate 310 moves down, the pressing seat 312 is attached to the carrier plate 212, and then the compression cavity is sealed, so that the garbage is limited, and the garbage is prevented from being blocked in the gap.
In order to utilize the low concentration percolate in the treatable liquid chamber 100A, as shown in fig. 13, a guide seat 130 is disposed in the percolate treatment tank 100, the top of the guide seat 130 is in a V-shaped structure, the treatable liquid chamber 100A is formed at the top of the guide seat 130, the guide seat 130 in the V-shaped structure forms a corner at the bottom of the treatable liquid chamber 100A, then the low concentration percolate entering the treatable liquid chamber 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 chamber 100A, the other end of the return pipe 150 passes through the percolate treatment tank 100 and the pressing plate 310 and is connected through a spring pipe 152, the movement of the pressing plate 310 is adapted through the spring pipe 152, a negative pressure pump 151 is disposed outside the return pipe 150, during operation, the negative pressure pump 151 drives the low concentration percolate in the treatable liquid chamber 100A to enter the return pipe 150, the cavity disposed in the pressing plate 310 through the spring pipe 152, then the bottom of the pressing plate 310 is opened with a plurality of spray holes, the low concentration percolate entering the cavity is concentrated on garbage through the spray holes, and the garbage is returned to the rinse the percolate which can be circulated into the treatable liquid chamber 100A.
It should be noted that, the bottom of the disposable liquid chamber 100A is provided with a 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 for adsorbing the low concentration percolate, activated sludge is filled in the biological filter layer 142 for aerobic treatment of the low concentration percolate, gravel is filled in the gravel filter layer 143 for filtering, and the low concentration percolate after being treated by the activated carbon filter layer 141, the biological filter layer 142 and the gravel filter layer 143 can be back-washed.
The foregoing has shown and described the basic principles, principal 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 above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The efficient garbage leachate treatment method is characterized by comprising the following steps of:
firstly, putting 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 contacted with garbage in the bearing mechanism (200) to form a contact surface;
Step three, the pressure end moves downwards to enable the contact surface to squeeze the garbage, and the moisture in the garbage is fully discharged after being pressed;
Step four, forming two drainage channels, namely an initial drainage channel and a flushing drainage channel through a bearing mechanism (200), performing staged drainage operation on discharged water by using the formed two drainage channels, and directly discharging high-concentration percolate at the stage through the initial drainage channel at the initial stage; flushing the garbage in a flushing stage, and enabling low-concentration percolate formed after flushing to flow downwards through a flushing drainage channel so as to independently store the low-concentration percolate in a percolate treatment tank body (100);
the bearing mechanism (200) comprises a bearing assembly (210) and a breakthrough isolation assembly (220), the bearing assembly (210) is arranged at the top of the breakthrough isolation assembly (220), the breakthrough isolation assembly (220) comprises a first partition plate (221) and a second partition plate (222), the first partition plate (221) is positioned at the top of the second partition plate (222), and a waste liquid cavity (220A) is formed between the second partition plates (222);
The bottom of the bearing assembly (210) is provided with a protruding end, the force output mechanism (300) serves as the force output end to squeeze garbage in the bearing assembly (210), the bearing assembly (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, an initial drainage channel is formed by means of the waste liquid cavity (220A), the protruding end continues to move downwards to break through the second partition plate (222), and the protruding end forms a flushing drainage channel.
2. The efficient treatment method of landfill leachate according to claim 1, wherein the method comprises the following steps: the utility model provides a bear subassembly (210) including restriction frame (211) and loading board (212), restriction frame (211) fixed connection is on the inside wall of filtration liquid treatment cell body (100), loading board (212) mobilizable setting is in the bottom of restriction frame (211), forms through loading board (212) to restriction frame (211) bottom shutoff and bears chamber (212A), wherein:
a plurality of circulation grooves (2121) are formed in the bearing plate (212);
the bottom of the bearing plate (212) is provided with a plurality of groups of breakthrough plates (213), and protruding ends are formed through the breakthrough plates (213).
3. The efficient treatment method of landfill leachate according to claim 2, wherein the method comprises the following steps: the breakthrough 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 garbage, so that a liquid accumulation cavity (212B) is formed between the bearing plate (212) and the first partition plate (221).
4. The efficient treatment method of 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 slide posts (214), the slide posts (214) are in sliding connection with limiting frames (211), the limiting frames (211) are located at the slide posts (214) to form sliding grooves, protruding rings (2141) are arranged outside the slide posts (214), connecting springs (2142) are arranged between the protruding rings (2141) and the inner walls of the sliding grooves, and a liquid accumulation 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 efficient treatment method of landfill leachate according to claim 2, wherein the method comprises the following steps: the first baffle (221) and the second baffle (222) correspond to the positions of the plurality of groups of breakthrough plates (213) and are provided with a plurality of breakthrough grooves (223), first sealing plates (2231) and second sealing plates (2232) are respectively arranged on two sides of each group of breakthrough plates (213) in the breakthrough grooves (223), the first sealing plates (2231) and the second sealing plates (2232) are elastic structures, and the first sealing plates (2231) and the second sealing plates (2232) are tightly attached under the condition that no pressure is applied to the outside.
6. The efficient treatment method for landfill leachate according to claim 5, wherein the method comprises the following steps: a plurality of breakthrough plates (213) in each group are arranged, and a gap is formed between two adjacent breakthrough plates (213).
7. The efficient treatment method for landfill leachate according to claim 5, wherein the method comprises the following steps: the external profile of the breachable groove (223) on the second separator (222) is less than the external profile of the breachable groove (223) on the first separator (221).
8. The efficient treatment method of landfill leachate according to claim 1, wherein the method comprises the following steps: the utility model provides a power output mechanism (300) includes clamp plate (310) and support (320), the bottom surface of clamp plate (310) is as the contact surface, receives the extrusion rubbish under the external effect, support (320) set up in one side of clamp plate (310), support (320) are "L" shape structure, the one end at support (320) top sets up connecting plate (322), the bottom and the 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 in rotary connection with the sliding block (3231) and the connecting plate (322);
one end of the bottom of the bracket (320) is provided with a vertical hydraulic cylinder (321).
9. The efficient treatment method for landfill leachate according to claim 8, wherein the method comprises the following steps: be provided with guide seat (130) in percolate treatment cell body (100), guide seat (130) top is "V" shape structure, but guide seat (130) of "V" shape structure forms treatment liquid chamber (100A) at guide seat (130) top, but guide seat (130) of "V" shape structure makes the bottom in treatment liquid chamber (100A) form a corner, the corner is provided with back flow (150), one end and the treatment liquid chamber (100A) intercommunication of back flow (150), the other end passes percolate treatment cell body (100), the one end that passes percolate treatment 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 efficient treatment method for landfill leachate according to claim 9, wherein the method comprises the following steps: the bottom of the treatable liquid cavity (100A) is provided with a filter assembly (140), and the filter assembly (140) comprises an active carbon filter layer (141), a biological filter layer (142) and a gravel filter layer (143), wherein:
Activated carbon particles are filled in the activated carbon filter layer (141);
The biological filter layer (142) is filled with activated sludge;
The gravel pack (143) is filled with gravel.
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