CN210788562U - Percolate collecting, treating and recharging device applied to refuse landfill - Google Patents

Abstract

The utility model relates to the field of garbage disposal devices, in particular to a percolate collecting, processing and recharging device applied to a garbage landfill, which comprises a landfill layer, a percolate layer, a collecting tank and a percolate processing device; a recharge pipeline network is laid in the landfill layer, and a through hole communicated to the landfill layer is arranged on a pipeline of the recharge pipeline network; one end of the percolation layer close to the filling layer is provided with a filtering hole for the percolation liquid to pass through; one end of the seepage layer, which is far away from the buried layer, is communicated with a collecting tank through a collecting pipe, and the collecting tank conveys the percolate to a percolate treatment device through a first pump body; the leachate treatment device conveys the treated leachate to a recharge pipeline network through a second pump body. Percolate generated by landfill is collected into a collecting tank, so that the random discharge and the infiltration of the percolate into soil are avoided, and the environmental pollution is avoided; the percolate is treated and then is poured into a garbage burying layer to react with the buried garbage, so that the stabilization speed of the garbage burying is accelerated.

Description

Percolate collecting, treating and recharging device applied to refuse landfill

Technical Field

The utility model relates to a refuse treatment device field, more specifically relates to a be applied to filtration liquid collection of refuse landfill and handle recharging device.

Background

Waste is a solid, fluid substance that is not needed or useful. In densely populated large cities, waste disposal is a headache problem. It is common practice to collect and send the garbage to a landfill for landfill treatment, but during the landfill process, landfill leachate is generated. The landfill leachate directly permeates into the soil, and can cause serious damage to the ecology. Moreover, the landfill leachate is difficult to contact with oxygen during the process of landfill accumulation, and because the anaerobic reaction occurs, the stabilization speed of the landfill is affected.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome among the above-mentioned prior art filtration liquid can not obtain the problem that the processing leads to environmental pollution and influence landfill stabilization speed, provide a filtration liquid collection treatment recharge device who is applied to the landfill site, after handling filtration liquid, recharge to landfill department, can handle with rubbish, also can accelerate landfill stabilization speed.

In order to solve the technical problem, the utility model discloses a technical scheme is: a percolate collecting, treating and recharging device applied to a refuse landfill comprises a landfill layer for landfill of refuse, a percolate layer arranged at one end of the landfill layer close to the ground, a collecting tank communicated with the percolate layer and a percolate treating device for treating percolate in the collecting tank; a recharge pipeline network is laid in the landfill layer, and a through hole communicated to the landfill layer is formed in a pipeline of the recharge pipeline network; one end of the seepage layer, which is close to the buried layer, is provided with a filtering hole for the seepage to pass through; one end, far away from the buried layer, of the seepage layer is communicated with the collecting tank through a collecting pipe, and the collecting tank conveys the percolate to the percolate treatment device through a first pump body; and the percolate treatment device conveys the treated percolate to the recharging pipeline network through a second pump body.

Leachate generated by garbage in the landfill layer flows into the leachate layer after passing through the filtering holes and then flows into the collecting tank from the leachate layer through the collecting pipe, so that the garbage landfill position where the leachate is accumulated and the direct infiltration of the leachate into soil are avoided. The first pump body pumps the percolate in the collecting tank to a percolate treatment device, and the second pump body pumps the treated percolate to a recharging pipeline network and then flows back to a landfill layer through the through hole.

Preferably, one end of the collecting pipe close to the collecting tank is provided with a filter screen, and broken stone particles are placed in the collecting pipe. The leachate is filtered by the broken stone particles and then flows into the collecting tank through the filter screen, so that larger garbage is prevented from entering the collecting tank.

Preferably, a geotextile layer is arranged between the filling layer and the liquid seepage layer. The leachate can permeate the geotextile layer and then flows into the leachate layer, so that the filter holes are prevented from being blocked by garbage.

Preferably, one end of the liquid-permeable layer close to the collection tank is provided with an inclined surface inclined towards the collection tank, and the collection pipe is arranged on the inclined surface. The inclined surface can increase the flow of the percolate in the percolate layer and flow into the collecting tank through the collecting pipe more quickly.

Preferably, the inclined surface is inclined from the periphery of the liquid-permeable layer to the central position. The percolate can flow from the periphery of the percolate layer to the central position, and the flow speed of the percolate is higher.

Preferably, the leachate treatment device comprises an anaerobic tank and an aerobic tank communicated with the anaerobic tank, and the anaerobic tank is provided with a stirring device and air holes; the aerobic tank is provided with an air supply device and a filter plate which divides the aerobic tank into a reaction cavity and a liquid outlet cavity. And after the leachate enters the leachate treatment device from the collection tank, the leachate is treated by the anaerobic reaction in the anaerobic tank and the aerobic reaction. Agitating unit can stir the filtration liquid in the anaerobism pond for the process of reaction, the gas that the reaction produced can be discharged through the bleeder vent, avoids internal pressure too big. The air supply device provides oxygen for the aerobic tank, and the percolate flows out of the filter plate and then is used for recharging clear liquid.

Further preferably, the stirring device comprises a flow pusher and a motor for driving the flow pusher to rotate; the gas supply device comprises an aeration pipe communicated with the reaction cavity and an aeration fan for supplying gas to the aeration pipe.

Preferably, the reaction chamber and the liquid outlet chamber are connected through a pipeline provided with a one-way valve, and the filter plate is arranged at a liquid outlet of the pipeline. After the aerobic reaction is finished, the one-way valve is opened, and the percolate flows into the liquid outlet cavity after passing through the filter plate.

Compared with the prior art, the beneficial effects are: percolate generated by landfill is collected into a collecting tank, so that the random discharge and the infiltration of the percolate into soil are avoided, and the environmental pollution is avoided; meanwhile, leachate cannot accumulate in the oxygen-free landfill layer, so that the stabilization speed of landfill is reduced; the percolate is treated and then is poured into a garbage burying layer to react with the buried garbage, so that the stabilization speed of the garbage burying is accelerated.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is the schematic structural diagram of the leachate treatment device of the present invention.

Wherein: 1. filling a buried layer; 101. recharging the pipeline network; 2. a liquid-permeable layer; 201. a filtration pore; 202. a collection pipe; 203. filtering with a screen; 204. breaking the stone particles; 3. a collection tank; 301. a pump body; 4. a leachate treatment device; 401. a second pump body; 5. a concrete layer; 6. a geotextile layer; 7. a water outlet; 8. an anaerobic tank; 701. air holes are formed; 702. a flow impeller; 703. a motor; 8. an aerobic tank; 801. a reaction chamber; 802. a liquid outlet cavity; 803. a filter plate; 804. an aeration pipe; 805. an aeration fan; 806. a one-way valve.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", "long", "short", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limiting the present patent, and those skilled in the art will understand the specific meaning of the terms according to their specific circumstances.

The technical solution of the present invention is further described in detail by the following specific embodiments in combination with the accompanying drawings:

example 1

As shown in fig. 1, a percolate collecting, treating and recharging device applied to a refuse landfill comprises a landfill layer 1 for landfill of refuse, a percolate layer 2 arranged at one end of the landfill layer 1 near the ground, a collecting tank 3 communicated with the percolate layer 2, and a percolate treating device 4 for treating percolate in the collecting tank 3; a recharge pipeline network 101 is laid in the buried layer 1, and a through hole communicated to the buried layer 1 is formed in a pipeline of the recharge pipeline network 101; one end of the liquid seepage layer 2 close to the filling layer 1 is provided with a filtering hole 201 for the percolate to pass through; one end of the liquid seepage layer 2, which is far away from the buried layer 1, is communicated with a collecting tank 3 through a collecting pipe 202, and the collecting tank 3 conveys the percolate to a percolate treatment device 4 through a first pump body 301; the leachate treatment plant 4 delivers the treated leachate to the recharge piping network 101 via a second pump 401. The device is separated from the surrounding soil by a concrete layer 5.

Furthermore, a filter screen 203 is arranged at one end of the collecting pipe 202 close to the collecting tank 3, and broken stone particles 204 are placed in the collecting pipe 202. The percolate is firstly filtered by the broken stone particles 204 and then flows into the collecting tank 3 through the filter screen 203, so that larger garbage is prevented from entering the collecting tank.

Further, a geotextile layer 6 is arranged between the landfill layer 1 and the liquid seepage layer 2. The leachate can permeate the geotextile layer 6 and then flows into the leachate layer 2, so that the filter holes are prevented from being blocked by garbage.

Further, one end of the liquid-permeable layer 2 close to the collecting tank 3 is provided with an inclined surface inclined toward the collecting tank 3, and the collecting pipe 202 is provided on the inclined surface. The inclined surface can increase the flow of the percolate in the percolate layer and flow into the collecting tank through the collecting pipe more quickly.

Further, the slope is inclined from the periphery of the liquid-permeable layer 2 to the center. The percolate can flow from the periphery of the percolate layer to the central position, and the flow speed of the percolate is higher.

The utility model discloses a theory of operation or work flow: leachate generated by the garbage in the landfill layer 1 flows into a leachate layer after passing through the filtering holes 201, and then flows into the collecting tank 3 from the leachate layer through the collecting pipe 202, so that the landfill position where the leachate is accumulated and the leachate directly seeps into soil are avoided. The first pump body 301 pumps the percolate in the collecting tank 3 to the percolate treatment device 4, the second pump body 401 pumps the treated percolate to the recharging pipeline network 101, then the buried layer 1 is backfilled through-hole flow, the treated percolate has aerobic molecules and is subjected to aerobic reaction with garbage, and the stabilization speed of garbage landfill is accelerated.

The utility model has the advantages that: percolate generated by landfill is collected into a collecting tank, so that the random discharge and the infiltration of the percolate into soil are avoided, and the environmental pollution is avoided; meanwhile, leachate cannot accumulate in the oxygen-free landfill layer, so that the stabilization speed of landfill is reduced; the percolate is treated and then is poured into a garbage burying layer to react with the buried garbage, so that the stabilization speed of the garbage burying is accelerated.

Example 2

As shown in fig. 2, this embodiment provides an implementation of the leachate treatment apparatus based on example 1, specifically, the leachate treatment apparatus 4 includes an anaerobic tank 7 and an aerobic tank 8 communicated with the anaerobic tank 7, and the anaerobic tank 7 transfers leachate to the aerobic tank 8 through a liquid pump 9; the anaerobic tank 7 is provided with a stirring device and air holes 701; the aerobic tank 8 is provided with an air supply device and a filter plate 803 (which can be an activated carbon filter plate) for dividing the aerobic tank 8 into a reaction chamber 801 and a liquid outlet chamber 802. And after the leachate enters the leachate treatment device from the collection tank, the leachate is treated by the anaerobic reaction in the anaerobic tank and the aerobic reaction. Agitating unit can stir the filtration liquid in the anaerobism pond for the process of reaction, the gas that the reaction produced can be discharged through the bleeder vent, avoids internal pressure too big. The air supply device provides oxygen for the aerobic tank, and the percolate flows out of the filter plate and then is used for recharging clear liquid.

Further, the stirring device comprises a flow pusher 702 and a motor 703 for driving the flow pusher 702 to rotate; the air supply device comprises an aeration pipe 804 communicated with the reaction cavity 801 and an aeration fan 805 for supplying air to the aeration pipe 804.

Further, the reaction chamber 801 and the liquid outlet chamber 802 are connected through a pipeline provided with a check valve 806, and the filter plate 803 is arranged at the liquid outlet of the pipeline. After the aerobic reaction, the one-way valve is opened again, and the leachate flows into the effluent chamber after passing through the filter plate, so that the leachate is prevented from directly entering the effluent chamber without being reacted.

The remaining features of this example are consistent with example 1.

The utility model discloses a theory of operation or work flow: the first pump body 301 pumps the percolate to the anaerobic tank 7, and the percolate is stirred by the flow pushing device 702 to have anaerobic reaction. After the reaction is completed, the leachate is pumped to the reaction chamber 801 by the liquid pump 9, and air is blown into the aeration pipe 804 by the aeration fan 805, and then aerobic reaction is performed together with the leachate in the reaction chamber 801. After the aerobic reaction is finished, the one-way valve 806 is opened, the percolate enters the pipeline and flows into the liquid outlet cavity 802 after passing through the filter plate 803, and the second pump body 401 pumps the percolate in the liquid outlet cavity to the recharging pipeline network 101.

The beneficial effect of this implementation: the leachate after aerobic reaction can have aerobic reaction with the garbage in the landfill layer 1, so that the stabilization speed of the landfill garbage is accelerated.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (8)

1. The percolate collecting, treating and recharging device applied to the refuse landfill is characterized by comprising a landfill layer for landfill of refuse, a percolate layer arranged at one end of the landfill layer close to the ground, a collecting tank communicated with the percolate layer and a percolate treating device for treating percolate in the collecting tank; a recharge pipeline network is laid in the landfill layer, and a through hole communicated to the landfill layer is formed in a pipeline of the recharge pipeline network; one end of the seepage layer, which is close to the buried layer, is provided with a filtering hole for the seepage to pass through; one end, far away from the buried layer, of the seepage layer is communicated with the collecting tank through a plurality of collecting pipes, and the collecting tank conveys the percolate to the percolate treatment device through a first pump body; and the percolate treatment device conveys the treated percolate to the recharging pipeline network through a second pump body.

2. The leachate collection treatment recharging device as recited in claim 1 wherein said collection pipe has a screen at an end thereof adjacent to said collection basin, and said collection pipe has crushed stone particles disposed therein.

3. The leachate collection treatment recharging device applied to the landfill site as recited in claim 1, wherein a geotextile layer is disposed between the landfill layer and the leachate layer.

4. The leachate collection treatment recharging device applied to the landfill site of claim 1, wherein one end of the leachate layer near the collection tank is arranged as an inclined plane inclined towards the collection tank, and the collection pipe is arranged on the inclined plane.

5. The leachate collection treatment recharging device as recited in claim 4 wherein said slope slopes from a periphery to a center of said leachate layer.

6. The leachate collection treatment recharging device applied to the landfill site as recited in any one of claims 1 to 5, wherein the leachate treatment device comprises an anaerobic tank and an aerobic tank communicated with the anaerobic tank, the anaerobic tank is provided with a stirring device and air vents; the aerobic tank is provided with an air supply device and a filter plate which divides the aerobic tank into a reaction cavity and a liquid outlet cavity.

7. The leachate collection treatment recharging device applied to the landfill site of claim 6, wherein the stirring device comprises a flow impeller and a motor for driving the flow impeller to rotate; the gas supply device comprises an aeration pipe communicated with the reaction cavity and an aeration fan for supplying gas to the aeration pipe.

8. The leachate collection treatment recharging device applied to the landfill site as recited in claim 6, wherein the reaction chamber and the effluent chamber are connected by a pipeline provided with a check valve.

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