Stereoscopic solid waste landfill leachate negative pressure collecting, guiding and discharging system

Abstract

The utility model discloses a three-dimensional solid waste landfill leachate negative pressure collecting, guiding and discharging system, relates to the technical field of solid waste landfill engineering, and solves the technical problems that in the leachate guiding and discharging process, the leachate pressure, water level, flow and the like in different areas of a landfill are difficult to monitor in real time, and all leachate in the landfill is difficult to guide and discharge. Comprising a leachate collecting device, and the leachate collecting device comprises a leachate negative pressure branch well, a leachate collecting main well, a waste slurry guiding and discharging pipe and a waste slurry purifying facility; the device can quickly play a role in drainage without sand leakage in the solid waste landfill, the automatic treatment pump and the data control vacuum pump can effectively perform reverse filtration drainage, a reverse filtration structure is ensured to normally play a role, a permanent pressure carrier is formed, effective guide drainage of leachate in the solid waste landfill is ensured, and the service life of the leachate is prolonged. The percolate in the percolate negative-pressure branch well can be ensured not to be dispersed and separated, and the timeliness of percolate purification is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to solid waste landfill engineering technical field, specifically a kind of three-dimensional solid waste landfill leachate negative pressure collection and drainage system. BACKGROUND

[0002] The leachate of solid waste landfill has high pollutant concentration, strong toxicity, high exposure risk and large water quantity and quality fluctuation, which has potential threat to surrounding surface water and groundwater, and leachate treatment is the core problem and important guarantee of solid waste safe landfill, so the corresponding solid waste landfill leachate drainage system is used.

[0003] Some existing solid waste landfill leachate drainage systems can only routinely carry out preliminary treatment of leachate in solid waste landfill, are not easy to combine leachate negative pressure collection and leachate drainage, are difficult to carry out real-time monitoring of leachate pressure, water level, flow and the like in different areas of landfill during leachate drainage, are difficult to take measures to partially degrade harmful substances in leachate, and are difficult to drain all leachate in landfill. UTILITY MODEL CONTENT

[0004] The utility model aims at at least solving one of the technical problems existing in prior art;Therefore, the utility model provides a kind of three-dimensional solid waste landfill leachate negative pressure collection and drainage system, comprising:

[0005] Leachate collection device, the leachate collection device includes leachate negative pressure branch well, leachate collection main well, waste slurry drainage pipe and waste slurry purification facility;

[0006] Leachate monitoring device, the leachate monitoring device includes flow real-time monitoring facility, pressure real-time monitoring facility, water level real-time monitoring facility and harmful substance degradation equipment;

[0007] Leachate drainage facility, the leachate drainage facility includes leachate collection main well, data measurement and control flat open valve, PVC drainage pipe and waste liquid collection tank.

[0008] Preferably, the leachate collection main well is arranged as square structure, and is located at the middle position of the main body of solid waste landfill, the leachate negative pressure branch well is arranged as cylindrical structure, and is arranged in the main body of solid waste landfill, and contains flow real-time monitoring facility, pressure real-time monitoring facility and water level real-time monitoring facility, the waste slurry drainage pipe is arranged in the main body of solid waste landfill, the waste slurry purification facility is located in the waste slurry drainage pipe, one end of the waste slurry drainage pipe is connected with the leachate negative pressure branch well, and the other end is connected with the leachate collection main well.

[0009] Preferably, the solid waste landfill main body is divided into four regions, each region is provided with four leachate negative pressure branch wells, the leachate negative pressure branch wells are arranged in a net shape in the solid waste landfill main body, the leachate negative pressure branch wells are connected by waste slurry guide pipes, and the waste slurry guide pipes have the same length.

[0010] Preferably, the leachate negative pressure branch well is provided with an automatic treatment pump for treating leachate.

[0011] Preferably, the waste slurry guide pipe is arranged at a 5% slope from the outside to the inside of the solid waste landfill main body, and the waste slurry guide pipe is provided with the waste slurry purification facility.

[0012] Preferably, each leachate negative pressure branch well is provided with three numerical control sedimentation plates, and each numerical control sedimentation plate is provided with a leachate monitoring device.

[0013] Preferably, the data measurement and control flat valve is located in the leachate collection main well; one end of the PVC guide pipe is connected with the data measurement and control flat valve, and the other end is connected with the waste liquid collection pool.

[0014] Compared with the prior art, the system and the device have the following beneficial effects:

[0015] (1) The system and the device can quickly achieve the effect of drainage without sand leakage in the solid waste landfill, the automatic treatment pump and the data control vacuum pump can effectively perform the reverse filtration drainage, ensure that the reverse filtration structure normally plays a role, form a permanent ballast, ensure that the leachate in the solid waste landfill is effectively guided and drained, ensure that the leachate in the leachate negative pressure branch well does not disperse and separate, and strengthen the timeliness of leachate purification.

[0016] (2) The system and the device have high monitoring accuracy and fast monitoring speed, can quickly monitor the real-time pressure, flow and water level of the leachate in the solid waste landfill, and can quickly generate the pressure, flow and water level change curve of the leachate after the monitoring data is imported into the background, so that relevant personnel can easily explore the change law of the leachate pressure, flow and water level, and take effective preventive measures in the first time when irregular changes occur.

[0017] (3) The system and the device meet the general principles of the three-dimensional solid waste landfill leachate negative pressure collection and guide, meet the relevant specifications, have high safety and reliability, have low cost and do not produce other safety hazards in the later period, and can meet the needs of the three-dimensional solid waste landfill leachate negative pressure collection, leachate guide, leachate monitoring and harmful substance partial degradation. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a general arrangement schematic view of the system and the device structure of the three-dimensional solid waste landfill leachate negative pressure collection and guide.

[0019] Figure 2 For the utility model discloses a three -dimensional solid waste landfill leachate negative pressure collection and drainage system and device leachate monitoring device longitudinal section structure schematic view,

[0020] Figure 3 For the utility model discloses a three -dimensional solid waste landfill leachate negative pressure collection and drainage system and device leachate monitoring device horizontal section structure schematic view,

[0021] Figure 4 For the utility model discloses a three -dimensional solid waste landfill leachate negative pressure collection and drainage system and device leachate drainage facility arrangement schematic view,

[0022] In the drawing: 1, leachate negative pressure branch well, 2, leachate collection main well, 3, waste slurry drainage pipe, 4, waste slurry purification facility, 5, flow real-time monitoring facility, 6, pressure real-time monitoring facility, 7, water level real-time monitoring facility, 8, harmful substance degradation equipment, 9, forward and reverse switching numerical control device, 10, data measurement and control flat valve, 11, waste liquid collection tank, 12, PVC drainage pipe, 13, automatic treatment pump, 14, data control vacuum pump, 15, numerical control settling plate, 16, solid waste landfill main body. DETAILED DESCRIPTION

[0023] The technical scheme of the utility model will be described below in clear and complete manner in combination with embodiments, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0024] Embodiment one

[0025] Please refer to Figure 1 - Figure 3 The application provides a three-dimensional solid waste landfill leachate negative pressure collection and drainage system, which can collect leachate in different regions and periphery of the solid waste landfill main body 16 by using the slope discharge and negative pressure collection mode, and can purify, pressure real-time monitor, water level real-time monitor, flow real-time monitor and harmful substance degradation of leachate of different depths during the collection process, and finally orderly drain the leachate in different regions of the landfill to the waste liquid collection tank 11, which can effectively perform leachate backwashing drainage, has high safety and reliability, low cost and no other safety hazards in later period, can meet the needs of solid waste landfill leachate negative pressure collection and drainage, and comprises:

[0026] The leachate collection device includes a leachate negative pressure branch well 1, a leachate collection main well 2, a waste slurry drainage pipe 3 and a waste slurry purification facility 4. The leachate is first collected by the leachate negative pressure branch well 1, then drained to the leachate collection main well 2 through the waste slurry drainage pipe 3, and then drained to the waste liquid collection pool 11 through the PVC drainage pipe 12;

[0027] The leachate monitoring device includes a real-time flow monitoring facility 5, a real-time pressure monitoring facility 6, a real-time water level monitoring facility 7 and a harmful substance degradation device 8. The harmful substance degradation device 8 can degrade harmful substances in the leachate in the leachate negative pressure branch well 1 when the leachate is negatively pressurized and collected through an automatic processing pump 13. The leachate monitoring device also includes a forward and reverse switching numerical control device 9 and an automatic processing pump 13. The leachate monitoring device can monitor leachate at different positions in the solid waste landfill main body 16, avoiding the singleness of the monitoring data, and can deeply explore the real-time change law of the leachate pressure, flow and water level in the solid waste landfill main body 16, which is conducive to timely early warning of the solid waste landfill main body 16. The forward and reverse switching numerical control device 9 can be automatically processed in the leachate negative pressure branch well 1 through the automatic processing pump 13 During the leachate negative pressure collection process, the metal sleeve inside the leachate negative pressure branch well 1 is rotated by remote control. This is a prior art and is only briefly explained in the document. The rotation rate is 5 min / turn, which can also be adjusted by the forward and reverse switching numerical control device 9. The forward and reverse switching numerical control device 9 can also change the rotation direction of the metal sleeve in the leachate negative pressure branch well 1, switching clockwise rotation, counterclockwise rotation and stop. If it is not actively switched, under the control of the forward and reverse switching numerical control device 9, the rotation cycle of the metal sleeve in the leachate negative pressure branch well 1 is one circle clockwise + one circle counterclockwise. Under the control of the forward and reverse switching numerical control device 9, the monitoring efficiency of the leachate monitoring device and the degradation rate of harmful substances can be effectively improved, and the working efficiency of the system and device for negative pressure collection and drainage of leachate in solid waste landfills can be improved;

[0028] Leachate drainage facilities include leachate collection main well 2, data measurement and control flat-open valve 10, PVC drainage pipe 12 and waste liquid collection pool 11, waste slurry drainage pipe 3 and PVC drainage pipe 12, which can ensure that the leachate does not disperse and segregate.

[0029] In this embodiment, preferably, the leachate collection main well 2 is arranged in a square structure at the middle position of the solid waste landfill main body 16, and the leachate negative pressure branch well 1 is in a cylindrical structure and is arranged in the solid waste landfill main body 16, and contains the flow real-time monitoring facility 5, the pressure real-time monitoring facility 6 and the water level real-time monitoring facility 7, the waste slurry guide pipe 3 is arranged in the solid waste landfill main body 16, the waste slurry guide pipe 3 is made of PPR material, has the characteristics of light weight and good heat resistance, and has a diameter of 50 mm and a length of several, the waste slurry purification facility 4 is arranged in the waste slurry guide pipe 3, one end of the waste slurry guide pipe 3 is connected with the leachate negative pressure branch well 1, and the other end is connected with the leachate collection main well 2.

[0030] In this embodiment, preferably, the solid waste landfill main body 16 is divided into four areas, and four leachate negative pressure branch wells 1 are arranged in each area, fine natural filter material is used in the leachate negative pressure branch well 1, the leachate negative pressure branch well 1 is arranged in a network in the solid waste landfill main body 16, can efficiently collect leachate under negative pressure in a short time, and has a wide collection range, the waste slurry guide pipes 3 are connected between each leachate negative pressure branch well 1, and the lengths of the waste slurry guide pipes 3 are the same.

[0031] Referring to Figure 2 , the leachate negative pressure branch well 1 is provided with an automatic treatment pump 13 for treating leachate, which plays a role of negative pressure collection and can also be used for water storage, the flow real-time monitoring facility 5, the pressure real-time monitoring facility 6 and the water level real-time monitoring facility 7 can monitor the pressure, flow and water level of the leachate in real time when the leachate is collected under negative pressure in the leachate negative pressure branch well 1 through the automatic treatment pump 13, and can quickly arrange the monitoring data and draw corresponding change curves on a remote computer.

[0032] In this embodiment, preferably, the waste slurry guide pipe 3 is arranged at a slope of 5% from the outside to the inside of the solid waste landfill main body 16, each waste slurry guide pipe 3 is provided with a waste slurry purification facility 4, the waste slurry purification facility 4 can effectively purify the leachate in the waste slurry guide pipe 3 when the leachate is collected under negative pressure in the negative pressure branch well 1, has a fast purification speed and a high efficiency, and can ensure that the leachate does not disperse and separate in the waste slurry guide pipe 3.

[0033] Referring to Figure 3 , each leachate negative pressure branch well 1 in the three-dimensional solid waste landfill is connected with three waste slurry guide pipes 3 on each side, each waste slurry guide pipe 3 is provided with a waste slurry purification facility 4, and each leachate negative pressure branch well 1 is provided with three numerical control settling plates 15, the initial depths of the three numerical control settling plates 15 are 3 m, 5 m and 8 m, and one leachate monitoring device is arranged on each numerical control settling plate 15 to monitor various data of leachate at different depths of the solid waste landfill main body 16.

[0034] Embodiment two

[0035] Referring toFigure 4 For the second embodiment of the utility model, this embodiment is different from the previous embodiment.

[0036] In this embodiment, preferably, the data measurement and control flat valve 10 is located in the leachate collection main well 2, the data measurement and control flat valve 10 is provided with four valves, the opening and closing of the four valves can be controlled through remote control, and the four valves are used to sequentially guide and discharge the leachate in different directions of the three-dimensional solid waste landfill site.

[0037] Embodiment three

[0038] Refer to Figure 1 - Figure 4 For the third embodiment of the utility model.

[0039] A three-dimensional solid waste landfill site leachate negative pressure collection and drainage system and device, comprising the following use steps:

[0040] Step one, establish a leachate negative pressure collection and drainage system and device in the three-dimensional solid waste landfill site main body 16;

[0041] Step two, run the leachate negative pressure collection and drainage system and device, start the automatic treatment pump 13 in the leachate negative pressure branch well 1, and collect the leachate in the three-dimensional solid waste landfill site main body 16 in the leachate negative pressure branch well 1 through negative pressure collection or slope collection;

[0042] Step three, the leachate negative pressure branch well 1 through the leachate monitoring device for real-time monitoring of leachate in different areas, different depths of the three-dimensional solid waste landfill site 16, monitoring content includes flow monitoring, pressure monitoring, water level monitoring, and harmful substances in the leachate through the harmful substance degradation equipment 8 degradation, leachate monitoring device can be through the order of reverse switching numerical control device 9 adjustment of the rotating direction, facilitate its full mixing, accelerate the degradation rate and monitoring accuracy;

[0043] Step four, after monitoring, the leachate of different orientation leachate negative pressure branch well 1 is discharged into the leachate collection main well 2 through the waste slurry guide pipe 3, the data in the leachate collection main well 2 controls the vacuum pump 14, which can control the data measurement and control flat valve 10, and control the leachate in different areas to be discharged into the waste liquid collection tank 11 by the PVC guide pipe 12 in turn.

[0044] In summary, it is particularly suitable for the three-dimensional solid waste landfill site during operation, to realize the leachate negative pressure collection, leachate drainage, leachate monitoring, harmful substance partial degradation and other purposes.

[0045] The above examples are only used to illustrate the technical method of the present application, not to limit it. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical method of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical method of the present application.

Claims

1. A three-dimensional solid waste landfill leachate negative pressure collection and drainage system, characterized in that: include: A leachate collection device, comprising a leachate negative pressure branch well (1), a leachate collection main well (2), a waste slurry drainage pipe (3), and a waste slurry purification facility (4); A leachate monitoring device, comprising a flow rate real-time monitoring facility (5), a pressure real-time monitoring facility (6), a water level real-time monitoring facility (7) and a harmful substance degradation device (8); Leachate drainage facilities include a leachate collection main well (2), a data measurement and control flat-opening valve (10), a PVC drainage pipe (12), and a waste liquid collection pool (11).

2. A three-dimensional solid waste landfill leachate negative pressure collection and drainage system according to claim 1, characterized in that: The leachate collection main well (2) is configured as a square structure and is located in the middle of the solid waste landfill body (16). The leachate negative pressure branch well (1) is a cylindrical structure and is configured within the solid waste landfill body (16). It contains a flow rate real-time monitoring facility (5), a pressure real-time monitoring facility (6), and a water level real-time monitoring facility (7). The waste slurry drainage pipe (3) is configured within the solid waste landfill body (16). The waste slurry purification facility (4) is located within the waste slurry drainage pipe (3). One end of the waste slurry drainage pipe (3) is connected to the leachate negative pressure branch well (1), and the other end is connected to the leachate collection main well (2).

3. A three-dimensional solid waste landfill leachate negative pressure collection and drainage system according to claim 2, characterized in that: The solid waste landfill body (16) is divided into four areas, and each area is provided with four leachate negative pressure branch wells (1). The leachate negative pressure branch wells (1) are arranged in a network pattern in the solid waste landfill body (16). Each of the leachate negative pressure branch wells (1) is connected by a waste slurry drainage pipe (3), and each section of the waste slurry drainage pipe (3) has the same length.

4. A three-dimensional solid waste landfill leachate negative pressure collection and drainage system according to claim 3, characterized in that: The leachate negative pressure branch well (1) is equipped with an automatic treatment pump (13) for treating the leachate.

5. The three-dimensional solid waste landfill leachate negative pressure collection and drainage system according to claim 1, characterized in that: The waste slurry drainage pipe (3) is laid out from the outside to the inside of the solid waste landfill body (16) at a slope of 5%, and each section of the waste slurry drainage pipe (3) is provided with the waste slurry purification facility (4).

6. The three-dimensional solid waste landfill leachate negative pressure collection and drainage system according to claim 1, characterized in that: Three numerically controlled settling plates (15) are provided in each of the leachate negative pressure branch wells (1), and a leachate monitoring device is arranged on each of the numerically controlled settling plates (15).

7. The three-dimensional solid waste landfill leachate negative pressure collection and drainage system according to claim 1, characterized in that: The data measurement and control flat-open valve (10) is located in the leachate collection main well (2); one end of the PVC drainage pipe (12) is connected to the data measurement and control flat-open valve (10), and the other end is connected to the waste liquid collection pool (11).

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