CN214880976U - Complete device for treating landfill leachate - Google Patents

Abstract

The utility model discloses a garbage leachate treatment complete equipment, which relates to the technical field of sewage treatment, and comprises a garbage can placing box, a percolation water treatment device and a sludge fermentation tank, wherein the garbage can placing box comprises a box body, the left outer wall of the box body is provided with an air purifying device, the inner side of the percolation water treatment device is sequentially provided with a regulating tank, a sedimentation tank, an anoxic tank, an aerobic tank, a membrane biological reaction tank and a clean water tank from left to right, the bottom of the sedimentation tank and the bottom of the membrane biological reaction tank are both connected with a sludge gathering pipe through a blow-off pipe, and the tail end of the sludge gathering pipe is connected with the sludge fermentation tank. The comfort level of the residential environment of the community is improved.

Description

Complete device for treating landfill leachate

Technical Field

The utility model relates to a sewage treatment technical field, in particular to landfill leachate handles integrated equipment.

Background

Since the 21 st century, the economy of China has been rapidly developed, the urban scale is continuously enlarged, the urbanization process is continuously accelerated, and the generation amount of urban domestic garbage is also sharply increased. According to statistics, the annual production of urban garbage in China currently exceeds 1.4 hundred million tons, and the annual growth is 8-10% per year, the daily garbage production per person exceeds 1.1kg, the daily domestic garbage produced in big cities such as Beijing, Shanghai and the like only reaches about 2 million tons, China becomes one of the most serious countries of the world with garbage surrounding cities, 4.9 million tons of garbage are produced in the world every year, and nearly 1.5 million tons of urban garbage are produced in China only every year.

The landfill leachate is sewage filtered out by leaching of fermentation and precipitation and soaking of surface water and underground water in the stacking and landfill processes of the garbage, the landfill leachate is complex in component and contains a large amount of organic substances and high-concentration ammonia nitrogen and toxic and harmful pollutants, domestic garbage of garbage in residential districts in China is generally stacked in a garbage can at first and then is pulled down to the landfill site for treatment, the garbage stacked in the garbage can generates odor and leachate to pollute the soil of the residential districts, and in addition, with the continuous expansion of the urbanization in China, the production quantity of the town garbage is continuously increased, so that the treatment pressure of the landfill leachate of the landfill site is continuously increased, and the stable and effective operation of a biochemical treatment system is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a landfill leachate handles integrated equipment, can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a landfill leachate handles integrated equipment, places case, percolating water processing apparatus and sludge fermentation jar including the garbage bin, the garbage bin places the case and includes the box, the top of box disposes the case lid, the upper end of two inside walls of box all is fixed with the support bar, two the support bar is the symmetry setting, two the garbage bin has been placed between the support bar, the bottom of garbage bin is equipped with the arc, the bottom of arc is equipped with the percolating hole, the filter hopper is installed to the below of arc in the inboard bottom of box, the bottom of filter hopper is equipped with the leakage fluid dram, the leakage fluid dram passes through flange joint and leads to the liquid pipe, lead to the liquid pipe and connect filtrating collection pipe, the net gas device is installed to the left side outer wall of box, the chamber door rather than the adaptation is installed in the front of box, transparent observation window is installed in the front of chamber door, percolating water processing apparatus's inboard has from left to right set gradually the regulation pool from left to right, Sedimentation tank, oxygen deficiency pond, good oxygen pond, membrane biological reaction pond and clean water basin, separate through filtration membrane between equalizing basin and the sedimentation tank, oxygen deficiency pond, good oxygen pond, membrane biological reaction pond and clean water basin are adjacent to be separated through the baffle, the both sides in oxygen deficiency pond are linked together with sedimentation tank and good oxygen pond respectively, be connected with the lifting pipe between good oxygen pond and the membrane biological reaction pond, install the lifting water pump on the lifting pipe, the equalizing basin top is through the end of feed liquor union coupling filtrating union pipe, the top of sedimentation tank is equipped with the additive mouth, membrane bioreactor has been placed in the membrane biological reaction pond, the right side of clean water basin is external to have the drain pipe, the bottom of equalizing basin, sedimentation tank and membrane biological reaction pond all connects the mud collection pipe through the blow off pipe, the end-to-connection mud fermentation jar of mud collection pipe, and a sludge pump is arranged on the sludge collecting pipe.

Preferably, the air purification device includes the casing, the inboard upper end of casing is fixed with the backup pad, filter screen and a plurality of spiral electrothermal tube are from left to right installed in proper order to the upper end of backup pad, the air inlet has been seted up on the surface of casing on the right side of spiral electrothermal tube, the air inlet is linked together with the inboard of box, the blow vent has been seted up on the left side of filter screen in backup pad upper end surface, the below of backup pad is provided with photocatalyst layer in the inboard of casing, ultraviolet germicidal lamp is installed to photocatalyst layer's below, ultraviolet germicidal lamp's below is provided with the active carbon adsorption net, the air discharge fan is installed to the below of active carbon adsorption net, the left side of air discharge fan is equipped with the gas vent on the surface of casing, the gas vent disposes dust screen panel.

Preferably, the inboard from the top down demountable installation of filter hopper has coarse mesh grid otter board and micropore grid otter board, coarse mesh grid otter board and micropore grid otter board all are the slope of the height of a left side and place and the two is parallel to each other, the horizontal inclination angle of coarse mesh grid otter board and micropore grid otter board is fifteen degrees, the left side of coarse mesh grid otter board and micropore grid otter board is connected with the filter residue collection pipe, the terminal detachable filtrating rubbish collection box of installing of filter residue collection pipe, the top of filtrating rubbish collection box disposes the top cap.

Preferably, the surfaces of the right sides of the coarse-pore grid mesh plate and the micro-pore grid mesh plate, which are lowest in the filter hopper, are provided with filter residue discharge ports, and the two filter residue discharge ports are located on the inner side of the filter residue collecting pipe.

Preferably, a return pipe is connected between the membrane biological reaction tank and the anoxic tank, a nitric acid liquid reflux pump is installed on the return pipe, a water outlet pipe is connected between the top of the MBR membrane biological reactor and the clean water tank, and a self-priming pump and an ultraviolet sterilizer are installed on the water outlet pipe.

Preferably, the top of the sludge fermentation tank is provided with an autonomous exhaust valve.

Preferably, the air blower has been placed on percolating water processing apparatus's right side, the air-out port of air blower is connected with the blowing pipe, the blowing pipe runs through percolating water processing apparatus's right side wall and extends to the inboard bottom in good oxygen pond, the surface that the blowing pipe is located good oxygen pond and membrane bioreaction pond all is connected with the aeration pipe, aeration pipe and blowing pipe mutually perpendicular, the surface of aeration pipe is equipped with the aeration mouth.

Preferably, handles are fixed on two sides of the garbage can, supporting blocks are abutted to the lower portions of the handles, the supporting blocks are fixed on the inner walls of the two sides of the box body respectively, and rubber cushions are bonded on the opposite sides of the supporting blocks.

Preferably, the dustbin is placed the case and can be equipped with a plurality ofly and its bottom all with be connected the filtrating collection pipe through leading to the liquid pipe, the desilting pump is installed to the head end of filtrating collection pipe, the inboard in the intake port of desilting pump passes through the suction tube and connects the clean water basin, the play water port of desilting pump is linked together with the inboard of leading to the liquid pipe.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the garbage can placing box can be used for containing garbage cans, so that the garbage cans are prevented from leaking violently to generate stink, pollute the environment and influence the community environment;

2. the arranged air purifying device can effectively purify the peculiar smell generated by the garbage in the garbage can, so that the living environment of a community is more comfortable;

3. the utility model discloses a percolation water processing apparatus who sets up can be used to purify the produced filtration liquid of rubbish in the garbage bin, has alleviateed the pressure that municipal administration landfill leachate handled, but wide overall arrangement has stronger application and promotion value in each district.

Drawings

FIG. 1 is a schematic view of the overall structure of a complete garbage leachate treatment plant of the present invention;

FIG. 2 is a schematic view of the overall structure of the percolating water treatment device of the complete garbage percolate treatment device of the utility model;

FIG. 3 is a schematic view of the overall structure of a garbage can containing box of the complete garbage leachate treatment device of the present invention;

FIG. 4 is a schematic view of the internal structure of the complete garbage leachate treatment plant air purifier of the present invention;

fig. 5 is the utility model discloses an inner structure cross-sectional view of landfill leachate handles integrated equipment filter bowl.

In the figure: 1. a trash can placing box; 101. a box body; 102. a box cover; 103. a supporting strip; 104. a support block; 105. a rubber cushion; 106. a box door; 107. a transparent viewing window; 2. a percolating water treatment device; 201. a regulating tank; 202. a sedimentation tank; 203. an anoxic tank; 204. an aerobic tank; 205. a membrane biological reaction tank; 206. a clean water tank; 207. a filtration membrane; 208. a partition plate; 209. an MBR membrane bioreactor; 210. an additive port; 211. a drain pipe; 212. a liquid inlet pipe; 3. a trash can; 301. an arc-shaped plate; 302. a percolation bore; 303. a handle; 4. a filter hopper; 401. a coarse-meshed grid screen plate; 402. a microporous grid mesh plate; 403. filter residue collecting pipe; 404. a residue discharge port; 405. a liquid discharge port; 5. a gas purification device; 501. a housing; 502. a support plate; 503. a spiral electric heating tube; 504. an air inlet; 505. a filter screen; 506. a photocatalyst layer; 507. an ultraviolet sterilizing lamp; 508. an activated carbon adsorption net; 509. an exhaust fan; 510. an exhaust port; 511. a vent; 6. a filtrate garbage recycling bin; 7. a sludge fermentation tank; 701. an autonomous exhaust valve; 702. a blow-off pipe; 703. a mud pump; 704. a sludge collecting pipe; 8. a nitric acid liquid reflux pump; 801. a return pipe; 9. a self-priming pump; 901. a water outlet pipe; 902. an ultraviolet sterilizer; 10. a blower; 1001. a blowpipe; 1002. an aeration pipe; 1003. an aeration opening; 11. a filtrate collecting pipe; 12. a liquid pipe is communicated; 13. a dredging pump; 1301. a suction pipe; 14. lifting the water pump; 1401. lifting the water pipe.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-5, a complete set of garbage leachate treatment device comprises a garbage can placing box 1, an infiltration water treatment device 2 and a sludge fermentation tank 7, wherein the garbage can placing box 1 comprises a box body 101, a box cover 102 is configured at the top of the box body 101, support bars 103 are fixed at the upper ends of two inner side walls of the box body 101, the two support bars 103 are symmetrically arranged, a garbage can 3 is placed between the two support bars 103, an arc-shaped plate 301 is arranged at the bottom of the garbage can 3, an infiltration hole 302 is arranged at the bottom of the arc-shaped plate 301, a filter hopper 4 is arranged below the arc-shaped plate 301 and at the bottom of the inner side of the box body 101, a liquid discharge port 405 is arranged at the bottom of the filter hopper 4, the liquid discharge port 405 is connected with a liquid through pipe 11 through a flange, the liquid through pipe 11 is connected with a filtrate collecting pipe 12, and a gas purification device 5 is arranged on the outer wall of the left side of the box body 101, the front of the box body 101 is provided with a box door 106 adapted to the box body, the front of the box door 106 is provided with a transparent observation window 107, the inner side of the percolating water treatment device 2 is sequentially provided with an adjusting tank 201, a sedimentation tank 202, an anoxic tank 203, an aerobic tank 204, a membrane biological reaction tank 205 and a clean water tank 206 from left to right, the adjusting tank 201 and the sedimentation tank 202 are separated by a filtering membrane 207, the sedimentation tank 202, the anoxic tank 203, the aerobic tank 204, the membrane biological reaction tank 205 and the clean water tank 206 are adjacent and separated by a partition plate 208, two sides of the anoxic tank 203 are respectively communicated with the sedimentation tank 202 and the aerobic tank 204, a lifting water pipe 1401 is connected between the aerobic tank 204 and the membrane biological reaction tank 205, the lifting water pipe 1401 is provided with a lifting water pump 14, the top of the adjusting tank 201 is connected with the tail end of the filtrate header 12 by a liquid inlet pipe 212, the top of the sedimentation tank 202 is provided with an additive port 210, an MBR (membrane bioreactor) 209 is placed in the membrane biological reaction tank 205, a drain pipe 211 is externally connected to the right side of the clean water tank 206, the bottoms of the regulating tank 201, the sedimentation tank 202 and the membrane biological reaction tank 205 are all connected with a sludge collecting pipe 704 through a drain pipe 702, the tail end of the sludge collecting pipe 704 is connected with a sludge fermentation tank 7, and a sludge pump 703 is installed on the sludge collecting pipe 704.

In this embodiment, preferably, the air purifying device 5 includes a housing 501, a support plate 502 is fixed at the upper end of the inner side of the housing 501, a filter screen 505 and a plurality of spiral electric heating tubes 503 are sequentially installed at the upper end of the support plate 502 from left to right, an air inlet 504 is opened on the right side of the spiral electric heating tubes 503 on the surface of the housing 501, the air inlet 504 is communicated with the inner side of the box body 101, an air vent 511 is opened on the left side of the filter screen 505 on the upper end surface of the support plate 502, a photocatalyst layer 506 is arranged below the support plate 502 on the inner side of the housing 501, an ultraviolet sterilizing lamp 507 is installed below the photocatalyst layer 506, an activated carbon adsorption screen 508 is arranged below the ultraviolet sterilizing lamp 507, an exhaust fan 509 is installed below the activated carbon adsorption screen 508, an exhaust port 510 is arranged on the left side of the exhaust fan 509 on the surface of the housing 501, and a dust-proof mesh enclosure is configured at the exhaust port 510, can effectively purify the stink emitted by the garbage stacked in the garbage can 3 and increase the comfort level of residential environment of a community.

In this embodiment, it is preferred, but filter hopper 4's inboard from the top down demountable installation has coarse mesh grid otter board 401 and micropore grid otter board 402, coarse mesh grid otter board 401 and micropore grid otter board 402 all are the slope of high left and low right and place and the two is parallel to each other, the horizontal inclination angle of coarse mesh grid otter board 401 and micropore grid otter board 402 is fifteen degrees, the left side of coarse mesh grid otter board 401 and micropore grid otter board 402 is connected with filter residue collection pipe 403, filter residue collection pipe 403's terminal demountable installation has filtrating rubbish collection tank 6, the top of filtrating rubbish collection tank 6 is configured with the top cap, but the impurity in the rapid filtration rubbish filtration liquid.

In this embodiment, preferably, the surfaces of the right sides of the coarse-pore grid mesh plate 401 and the fine-pore grid mesh plate 402, which are lowest to the filter hopper 4, are provided with filter residue discharge ports 404, and the two filter residue discharge ports 404 are located on the inner side of the filter residue collecting pipe 403, so that the garbage filtered on the coarse-pore grid mesh plate 401 and the fine-pore grid mesh plate 402 can fall into the filtrate garbage recycling box 6.

In this embodiment, preferably, a return pipe 801 is connected between the membrane bioreactor 205 and the anoxic tank 203, the nitric acid solution reflux pump 8 is installed on the return pipe 801, a water outlet pipe 901 is connected between the top of the MBR membrane bioreactor 209 and the clean water tank 206, and a self-priming pump 9 and an ultraviolet sterilizer 902 are installed on the water outlet pipe 901, so that the treated sewage can be sterilized to reach the discharge standard, and the treatment pressure of the landfill to the landfill leachate is greatly reduced.

In this embodiment, it is preferable that the top of the sludge fermentation tank 7 is provided with an autonomous exhaust valve 701, so as to prevent the risk of explosion caused by the generation of a large amount of gas through the respiration of microorganisms in the sludge fermentation tank 7.

In this embodiment, preferably, the air blower 10 has been placed on the right side of percolating water treatment device 2, the air outlet port of air blower 10 is connected with blowpipe 1001, blowpipe 1001 runs through the right lateral wall of percolating water treatment device 2 and extends to the inboard bottom of good oxygen pond 204, the surface that blowpipe 1001 is located good oxygen pond 204 and membrane bioreaction pond 205 all is connected with aeration pipe 1002, aeration pipe 1002 and blowpipe 1001 are mutually perpendicular, aeration pipe 1002's surface is equipped with aeration mouth 1003, and aeration pipe 1002 is connected with blowpipe 1001 is perpendicular, enables upper and lower water and oxygen flash mixed for percolating water treatment device 2 is to the treatment effeciency of percolating water.

In this embodiment, preferably, handles 303 are fixed on both sides of the trash can 3, support blocks 104 are abutted below the two handles 303, the two support blocks 104 are respectively fixed on the inner walls of both sides of the box 101, and a rubber cushion 105 is bonded on the opposite side of the two support blocks 104, so that the trash can 3 is well supported.

In this embodiment, it is preferred, the garbage bin is placed case 1 and can be equipped with a plurality ofly and its bottom all with be connected filtrate collection pipe 11 through liquid pipe 12, desilting pump 13 is installed to filtrate collection pipe 11's head end, the water inlet port of desilting pump 13 passes through the inboard that the suction pipe 1301 connected clean water basin 206, the water outlet port of desilting pump 13 is linked together with the inboard of liquid pipe 12, and the water of available clean water basin 206 carries out high pressure water washing in to filtrate collection pipe 11, prevents to stop up in the filtrate collection pipe 11, reduces the breeding volume of the interior bacterium of filtrate collection pipe 11.

It should be noted that, the utility model relates to a garbage leachate treatment complete equipment, when in use, the garbage can placing box 1 is arranged in a community, the garbage can 3 is placed in the inner cavity of the garbage can, which can be used for storing residential household garbage of the community, garbage stored in the garbage can 3 can generate a large amount of leachate, because the bottom of the garbage can 3 is provided with an arc-shaped plate 301, the bottom of the arc-shaped plate 301 is provided with a percolation hole 302, the generated leachate can be filtered and decontaminated by a filter hopper 4 firstly, then flows along a filtrate collecting pipe 11 after passing through a liquid passing pipe 12, the leachate can flow into the filter hopper 4 in an adjusting tank 201 in the percolation water treatment device 2, two coarse-hole grid mesh plates 401 and a microporous grid mesh plate 402 which are detachably arranged in the filter hopper 4 can effectively filter impurities in the leachate, the filtered impurities can enter a filtrate garbage recycling box 6 along the filtrate collecting pipe 403 through a filter residue discharge port 404, the filter liquor residue is conveniently treated in a centralized way, the arranged regulating tank 201 can stabilize the water body, the flocculant is added into the sedimentation tank 202 through the additive port 210 to enable suspended matters in the percolate to be rapidly accumulated and precipitated, the anoxic tank 203 can enable the percolate to generate hydrolysis reaction to improve the biodegradability of percolate waste water, the water is discharged from the anoxic tank 203 and then enters the aerobic tank 204, oxygen is added through the air blower 10, COD in the water is decomposed under the action of aerobic microorganisms, meanwhile, ammonia nitrogen is consumed as nitrate nitrogen and then enters the membrane biological reaction tank 205, solid-liquid separation is carried out under the action of the MBR (membrane bioreactor) 209 to reduce the content of the suspended matters in the water, the nitrified liquid in the membrane biological reaction tank 205 flows back to the anoxic tank 203 through the return pipe 801 under the action of the nitric acid reflux pump 8 to carry out denitrification biological denitrification, the total nitrogen content in the water is reduced, and meanwhile, the mode of biological phosphorus removal and chemical phosphorus removal is assisted to ensure that the phosphorus content reaches the standard, the water after solid-liquid separation enters the clean water tank 206 through the water outlet pipe 901 under the action of the self-priming pump 9, the outlet water can reach the discharge standard under the action of the ultraviolet disinfector 902, the arranged aeration pipe 1002 is vertically connected with the air blowing pipe 1001 up and down, the upper and lower water bodies can be rapidly mixed with oxygen, and the treatment efficiency of the aerobic tank 204 and the membrane biological reaction tank 205 on percolating water is accelerated; sediments at the bottoms of the regulating tank 201, the sedimentation tank 202 and the membrane biological reaction tank 205 can enter the sludge fermentation tank 7 through the sludge collecting pipe 704 under the action of the sludge pump 703, sludge is further decomposed under the action of microorganisms, and the autonomous exhaust valve 701 arranged at the top of the sludge fermentation tank 7 can prevent the microorganisms in the sludge fermentation tank 7 from breathing to generate a large amount of gas to cause explosion danger; odor generated by garbage stored in the garbage can 3 can pass through the air inlet 504, and sequentially passes through the spiral electric heating tube 503 to heat and dry humid air with odor along the air circulation direction, impurities in the air are removed through the filter screen 505, odorous gases such as mercaptan, hydrogen sulfide, ammonia and the like in the odor can be effectively absorbed through the activated carbon adsorption net 508, and finally the odorous gases are exhausted out of the box body 101 through the exhaust port 510 at the exhaust fan 509, so that the odor emitted by the garbage stacked in the garbage can 3 can be effectively removed by the air purifying device 5, the overall comfort level of residential environment of a residential area is increased, the arranged ultraviolet sterilizing lamp 507 can effectively kill bacteria in the gases by matching with the photocatalyst layer 506, and the purification quality of the gases by the air purifying device 5 is greatly improved; the garbage bin of the device setting is placed case 1 and can be equipped with a plurality ofly, and the bottom all is linked together with filtrating collection pipe 11, can make each garbage bin place the generated landfill leachate of garbage bin 3 that places in the case 1 concentrate on an infiltration water treatment facilities 2 in carry out purification treatment, with the reasonable layout of the device in the urban district, thereby alleviate the treatment pressure of landfill to landfill leachate greatly, the desilting pump 13 accessible suction pipe 1301 of installation absorbs the water in the clean water basin 206 and is used for carrying out high pressure water washing in the filtrating collection pipe 11, prevent to block up in the filtrating collection pipe 11, reduce the breeding volume of the bacterium in the filtrating collection pipe 11.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (9)

1. The utility model provides a landfill leachate handles integrated equipment, places case (1), percolating water processing apparatus (2) and sludge fermentation jar (7) including the garbage bin, its characterized in that: the garbage can placing box (1) comprises a box body (101), a box cover (102) is arranged at the top of the box body (101), supporting strips (103) are fixed at the upper ends of two inner side walls of the box body (101), the supporting strips (103) are symmetrically arranged, a garbage can (3) is placed between the supporting strips (103), an arc-shaped plate (301) is arranged at the bottom of the garbage can (3), seepage holes (302) are formed in the bottom of the arc-shaped plate (301), a filter hopper (4) is arranged at the bottom of the inner side of the box body (101) below the arc-shaped plate (301), a liquid discharging port (405) is formed in the bottom of the filter hopper (4), the liquid discharging port (405) is connected with a liquid passing pipe (12) through a flange, the liquid passing pipe (12) is connected with a filtrate gathering pipe (11), an air purifying device (5) is arranged on the outer wall of the left side of the box body (101), and a box door (106) matched with the box body (101) is arranged on the front side, the front of the box door (106) is provided with a transparent observation window (107), the inner side of the percolating water treatment device (2) is sequentially provided with an adjusting tank (201), a sedimentation tank (202), an anoxic tank (203), an aerobic tank (204), a membrane biological reaction tank (205) and a clean water tank (206) from left to right, the adjusting tank (201) and the sedimentation tank (202) are separated by a filtering membrane (207), the sedimentation tank (202), the anoxic tank (203), the aerobic tank (204), the membrane biological reaction tank (205) and the clean water tank (206) are adjacent and separated by a partition plate (208), two sides of the anoxic tank (203) are respectively communicated with the sedimentation tank (202) and the aerobic tank (204), a lifting water pipe (1401) is connected between the aerobic tank (204) and the membrane biological reaction tank (205), and a lifting water pump (14) is arranged on the lifting water pipe (1401), the utility model discloses a sewage treatment system, including equalizing basin (201), membrane biological reaction pond (205), MBR membrane bioreactor (209), clear water pond (206), sludge fermentation tank (7) are connected to the end that the filtrating collection pipe (11) is connected through feed liquor pipe (212) at equalizing basin (201) top, the top of equalizing basin (202) is equipped with additive mouth (210), MBR membrane bioreactor (209) has been placed in membrane biological reaction pond (205), the right side of clear water pond (206) is external to have drain pipe (211), sludge collection pipe (704) is all connected through blow off pipe (702) in the bottom of equalizing basin (201), equalizing basin (202) and membrane biological reaction pond (205), sludge fermentation tank (7) is connected to the end of sludge collection pipe (704), install mud pump (703) on sludge collection pipe (704).

2. The landfill leachate treatment plant of claim 1, wherein: the gas purifying device (5) comprises a shell (501), a supporting plate (502) is fixed at the upper end of the inner side of the shell (501), a filter screen (505) and a plurality of spiral electric heating tubes (503) are sequentially installed at the upper end of the supporting plate (502) from left to right, an air inlet (504) is formed in the surface of the shell (501) on the right side of each spiral electric heating tube (503), the air inlet (504) is communicated with the inner side of the box body (101), an air vent (511) is formed in the surface of the upper end of the supporting plate (502) on the left side of the filter screen (505), a photocatalyst layer (506) is arranged on the inner side of the shell (501) below the supporting plate (502), an ultraviolet sterilizing lamp (507) is installed below the photocatalyst layer (506), an active carbon adsorption net (508) is arranged below the ultraviolet sterilizing lamp (507), and an exhaust fan (509) is installed below the active carbon adsorption net (508), the left side of exhaust fan (509) is equipped with gas vent (510) in the surface of casing (501), gas vent (510) are configured with dust screen panel.

3. The landfill leachate treatment plant of claim 1, wherein: the inboard from the top down demountable installation of filter bowl (4) has coarse mesh grid otter board (401) and micropore grid otter board (402), coarse mesh grid otter board (401) and micropore grid otter board (402) all are the low slope of left side height and right side and place and the two is parallel to each other, the horizontal inclination angle of coarse mesh grid otter board (401) and micropore grid otter board (402) is fifteen degrees, the left side of coarse mesh grid otter board (401) and micropore grid otter board (402) is connected with filter residue collection pipe (403), the terminal detachable filter liquor rubbish collection case (6) of installing of filter residue collection pipe (403), the top of filter liquor rubbish collection case (6) disposes the top cap.

4. The landfill leachate treatment plant of claim 3, wherein: the surfaces of the right sides of the coarse-pore grid mesh plate (401) and the micro-pore grid mesh plate (402) which are lowest in the filter hopper (4) are provided with filter residue discharge ports (404), and the two filter residue discharge ports (404) are positioned on the inner sides of the filter residue collecting pipes (403).

5. The landfill leachate treatment plant of claim 1, wherein: a return pipe (801) is connected between the membrane biological reaction tank (205) and the anoxic tank (203), a nitric acid liquid reflux pump (8) is installed on the return pipe (801), a water outlet pipe (901) is connected between the top of the MBR membrane biological reactor (209) and the clean water tank (206), and a self-priming pump (9) and an ultraviolet sterilizer (902) are installed on the water outlet pipe (901).

6. The landfill leachate treatment plant of claim 1, wherein: and an autonomous exhaust valve (701) is arranged at the top of the sludge fermentation tank (7).

7. The landfill leachate treatment plant of claim 1, wherein: blower (10) have been placed on the right side of percolating water treatment device (2), the air-out port of blower (10) is connected with blowing pipe (1001), blowing pipe (1001) run through the right lateral wall of percolating water treatment device (2) and extend to the inboard bottom in good oxygen pond (204), the surface that blowing pipe (1001) are located good oxygen pond (204) and membrane bioreaction pond (205) all is connected with aeration pipe (1002), aeration pipe (1002) and blowing pipe (1001) are mutually perpendicular, the surface of aeration pipe (1002) is equipped with exposure mouth (1003).

8. The landfill leachate treatment plant of claim 1, wherein: handles (303) are fixed on two sides of the garbage can (3), supporting blocks (104) are abutted to the lower portions of the handles (303), the supporting blocks (104) are fixed on the inner walls of two sides of the box body (101) respectively, and rubber cushions (105) are bonded on the opposite sides of the supporting blocks (104).

9. The landfill leachate treatment plant of claim 1, wherein: dustbin is placed case (1) and can be equipped with a plurality ofly and its bottom all with connect filtrating collection pipe (11) through leading to liquid pipe (12), desilting pump (13) are installed to the head end that filtrating collection pipe (11), the water inlet port of desilting pump (13) is through the inboard that absorbs water pipe (1301) connection clean water basin (206), the water outlet port of desilting pump (13) is linked together with the inboard that leads to liquid pipe (12).

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