CN210658480U - Landfill leachate and groundwater are taken out and are arranged well synthetically - Google Patents
Landfill leachate and groundwater are taken out and are arranged well synthetically Download PDFInfo
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- CN210658480U CN210658480U CN201921372961.XU CN201921372961U CN210658480U CN 210658480 U CN210658480 U CN 210658480U CN 201921372961 U CN201921372961 U CN 201921372961U CN 210658480 U CN210658480 U CN 210658480U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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Abstract
The utility model belongs to the technical field of the landfill construction and the treatment facility, specifically provide a landfill leachate and groundwater are synthesized and are pumped and discharged well, lean on gravity to flow in leachate lifting pit and groundwater lifting pit respectively alone from the landfill through the pipeline with leachate and groundwater, then take out respectively to the sewage treatment center through the submersible sewage pump. The pumping drainage well is arranged at the outer side of the flood intercepting ditch of the landfill or the outer slope toe of the garbage dam, so that the storage capacity of the landfill is not occupied, and the damage to an impermeable layer at the bottom of the landfill is avoided; leachate and underground water are collected by means of gravity flow, so that energy consumption is saved; the water inlet of the water inlet pipe is provided with an overhaul gate, and the top plate of the pumping well is provided with an overhaul hole, so that the pumping well can be conveniently overhauled and maintained; a valve and a sampling port are arranged on the water outlet pipe for controlling the water outlet amount and detecting the water outlet quality; HDPE films are laid in the lifting pool, so that leakage of leachate in the pumping drainage well can be effectively avoided; the submersible sewage pump is arranged on the bottom buttress of the tank, so that the submersible sewage pump is effectively prevented from being blocked.
Description
Technical Field
The utility model belongs to the technical field of refuse landfill construction and treatment facility, concretely relates to rubbish leachate and groundwater are synthesized and are pumped and discharged well.
Background
Along with the development of society, people have higher awareness on environmental protection, and the influence of the landfill site as a domestic garbage disposal site on the surrounding environment is more and more concerned by various social circles, so that the technical requirement on the landfill site is higher and higher. At present, for a plain type or a landfill in southern regions, because the underground water level is shallow, effective underground water guide and drainage measures need to be taken in the construction process of the landfill to meet the safety requirement of the underground water level of the landfill. The development of a novel leachate and groundwater collection and drainage guide facility is urgently needed to meet the technical requirements of the refuse landfill.
Disclosure of Invention
The utility model aims at overcoming the problem that the leachate pumping of the refuse landfill is complex and is not easy to maintain in the prior art.
Therefore, the utility model provides a rubbish leachate and groundwater are taken out and are arranged well synthetically, including the lifting pit, the lifting pit includes leachate lifting pit and groundwater lifting pit, the entry of leachate lifting pit passes through the leachate inlet tube and communicates with the export of landfill leachate, and the height of the entry of leachate lifting pit is less than the height of the export of landfill leachate, the entry of groundwater lifting pit passes through the groundwater inlet tube and communicates with the export of the groundwater under the landfill site, the height of the entry of groundwater lifting pit is less than the export height of the groundwater under the landfill site;
and the leachate lifting pool and the underground water lifting pool are respectively internally provided with a leachate submersible sewage pump and an underground water submersible sewage pump, and the leachate submersible sewage pump and the underground water submersible sewage pump are respectively communicated to the sewage treatment center through a leachate outlet pipe and an underground water outlet pipe.
Preferably, the lift pit comprises a closed pit wall, and the closed pit wall is made of reinforced concrete or glass reinforced plastic.
Preferably, the leachate lifting pond comprises a primary leachate lifting pond and a secondary leachate lifting pond, wherein an inlet of the primary leachate lifting pond is communicated with an outlet of primary leachate of the refuse landfill through a primary leachate inlet pipe, and an inlet of the secondary leachate lifting pond is communicated with an outlet of secondary leachate of the refuse landfill through a secondary leachate inlet pipe.
Preferably, the inner wall of the lifting pool is coated with an HDPE impermeable membrane.
Preferably, the leachate inlet pipe is communicated with the leachate lifting pool through a waterproof sleeve, and the groundwater inlet pipe is communicated with the groundwater lifting pool through a waterproof sleeve.
Preferably, the leachate outlet pipe and the groundwater outlet pipe respectively pass through a leachate valve well and a groundwater valve well.
Preferably, the leachate valve well and the groundwater valve well are both provided with sampling ports and valves.
Preferably, the submersible sewage pump is electrically connected with the liquid level detector.
Preferably, the top of the lifting pond is provided with a manhole close to the inlet.
Preferably, the bottom of the lifting pool is provided with a buttress, and the submersible sewage pump is arranged on the buttress.
The utility model has the advantages that: the utility model provides a this kind of rubbish leachate and groundwater are synthesized and are pumped well, lean on gravity to flow in leachate lifting pit and groundwater lifting pit respectively alone from the landfill through the pipeline with leachate and groundwater, then take out respectively to sewage treatment center through stealthily dirty pump. The pumping drainage well is arranged at the outer side of the flood intercepting ditch of the landfill or the outer slope toe of the garbage dam, so that the storage capacity of the landfill is not occupied, and the damage to an impermeable layer at the bottom of the landfill is avoided; the water inlet pipe is connected with the main drainage pipe in the blind ditch at the bottom of the landfill site, and leachate and underground water are collected by means of gravity flow, so that energy consumption is saved; the water inlet of the water inlet pipe is provided with an overhaul gate, and the top plate of the pumping well is provided with an overhaul hole, so that the pumping well can be conveniently overhauled and maintained; a valve and a sampling port are arranged on the water outlet pipe for controlling the water outlet amount and detecting the water outlet quality; HDPE films are laid in the lifting pool, so that leakage of leachate in the pumping drainage well can be effectively avoided; the submersible sewage pump is arranged on the bottom buttress of the tank, so that the submersible sewage pump is effectively prevented from being blocked.
The present invention will be described in further detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic top view of the landfill leachate and groundwater integrated pumping well of the present invention;
FIG. 2 is a schematic cross-sectional view of the landfill leachate and groundwater integrated pumping well of the present invention;
FIG. 3 is a schematic longitudinal section of the landfill leachate and groundwater integrated pumping well of the present invention;
fig. 4 is a side view of the garbage leachate and groundwater integrated pumping well of the present invention.
Description of reference numerals: 1. the combined pumping drainage well comprises a combined pumping drainage well, 2, a primary leachate lifting pool, 3, a pool wall, 4, an overhaul gate controller, 5, a primary leachate inlet pipe, 6, a secondary leachate inlet pipe, 7, an underground water inlet pipe, 8, a ladder stand, 9, an overhaul hole, 10, a secondary leachate lifting pool, 11, an underground water lifting pool, 12, a valve well, 13, a well cover, 14, a primary leachate outlet pipe, 15, a secondary leachate outlet pipe, 16, an underground water outlet pipe, 17, a waterproof sleeve, 18, an HDPE (high-density polyethylene) seepage-proofing film, 19, an overhaul gate, 20, a buttress, 21, a submersible sewage pump, 22, an overhaul hole, 23, a steel cover plate, 24, an expansion bolt, 25, an inlet pipe, 26, a circular ring chain, 27, a liquid level controller, 28, a sampling port, 29, a check valve, 30, a control valve, 31, a flowmeter, 32 and an outlet pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the well or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1 to 4, the utility model provides a modular pump drainage well 1, it includes the lifting pit, the lifting pit includes leachate lifting pit and groundwater lifting pit 11, the entry of leachate lifting pit passes through the export intercommunication of leachate inlet tube and landfill leachate, just the height of the entry of leachate lifting pit is less than the height of the export of landfill leachate, the export intercommunication of groundwater inlet tube and the below groundwater of landfill is passed through to the entry of groundwater lifting pit 11, the height of the entry of groundwater lifting pit 11 is less than the export height of the below groundwater of landfill. Through the difference in height, the liquid automatically flows from the landfill into the lift pond.
And a leachate submersible sewage pump and a groundwater submersible sewage pump are respectively arranged in the leachate lifting tank and the groundwater lifting tank 11, and are respectively communicated to a sewage treatment center through a leachate outlet pipe and a groundwater outlet pipe 16. After a certain amount of liquid is accumulated in the lifting tank, the liquid is pumped by the submersible sewage pump 21, so that the energy-saving effect is achieved, and meanwhile, the pumping efficiency is also improved. In which the submersible sewage pump 21 is connected to the top end of the well by a circular chain 26 and can be lifted by the circular chain 26 if necessary.
Preferably, the lift tank comprises a closed tank wall 3, and the closed tank wall 3 is made of reinforced concrete or glass fiber reinforced plastics. To meet the structural stability requirements.
In a preferred scheme, the leachate lifting pool comprises a primary leachate lifting pool 2 and a secondary leachate lifting pool 10, wherein an inlet of the primary leachate lifting pool 2 is communicated with an outlet of primary leachate of the refuse landfill through a primary leachate inlet pipe 14, and an inlet of the secondary leachate lifting pool 10 is communicated with an outlet of secondary leachate of the refuse landfill through a secondary leachate inlet pipe 15. Therefore, the primary leachate lifting pond 2, the secondary leachate lifting pond 10 and the underground water lifting pond 11 have the same structure, and are arranged side by side and combined to form the combined pumping and drainage well 1 which pumps the whole body.
In a preferable scheme, the inner wall of the lifting pool is coated with an HDPE impermeable membrane 18. Prevent the leachate in the hoisting pond from leaking and causing pollution. When the HDPE impermeable film 18 is attached, the HDPE impermeable film is tightly attached to the HDPE container by inserting the expansion bolts 24.
In the preferable scheme, the leachate inlet pipe is communicated with the leachate lifting pool through a waterproof sleeve 17, and the groundwater inlet pipe 7 is communicated with the groundwater lifting pool 11 through the waterproof sleeve 17. Prevent the leachate in the hoisting pond from leaking and causing pollution.
In a preferred scheme, the leachate outlet pipe and the groundwater outlet pipe 16 respectively pass through the leachate valve well 12 and the groundwater valve well 12. The pipeline on one side of the water outlet pipe is arranged in the valve well 12, and the pipeline is provided with a sampling port, a control valve, a check valve and a flow measuring device.
Preferably, the submersible sewage pump 21 is electrically connected with the liquid level detector. The start-stop time of the submersible sewage pump 21 is controlled by monitoring the liquid level in real time.
In the preferred scheme, a manhole 9 is arranged at the top of the lifting pool close to the inlet. Manhole 9 sets up on the pump drainage roof, be equipped with well lid 13, well lid 13 adopts flip formula steel apron 23 as the activity separation, set up cat ladder 8 in the manhole 9, the staff of being convenient for overhauls in the pit.
In the preferable scheme, the maintenance gate 19 is arranged at the water inlet of the water inlet pipe 25, the controller 4 of the maintenance gate 19 is arranged on the top plate of the combined pumping and drainage well 1, and the opening and closing of the maintenance gate 19 are controlled by the controller.
In a preferable scheme, a buttress 20 is arranged at the bottom of the lifting pool, and the submersible sewage pump 21 is arranged on the buttress 20. Preventing the submersible sewage pump 21 from being clogged with sludge.
The structure principle is as follows: the primary leachate lifting pool 2, the secondary leachate lifting pool 10 and the underground water lifting pool 11 have the same structure and are arranged side by side to form a combined pumping well 1 for pumping a whole. The lifting pond consists of a pond wall 3, a water inlet pipe 25, a water outlet pipe 32, an inspection gate 19, an inspection hole 22 and a submersible sewage pump 21, wherein the water inlet pipe 25, the water outlet pipe 32, the inspection gate 19, the inspection hole 22 and the submersible sewage pump 21 are respectively arranged in a primary leachate lifting pond 2, a secondary leachate lifting pond 10 and a groundwater lifting pond 11 in the same way, namely, the lifting pond comprises the primary leachate lifting pond 2, the secondary leachate lifting pond 10 and the groundwater lifting pond 11, the water inlet pipe 25 comprises a primary leachate water inlet pipe 5, a secondary leachate water inlet pipe 6 and a groundwater water inlet pipe 7, the pond wall 3 adopts an integral structure to prevent local damage caused by settlement, leachate or groundwater in a refuse landfill is connected with the water inlet pipe 25 through a bottom collecting and draining system and enters the lifting pond, and is drained into a treatment system through the water outlet pipe 32 after being lifted by the submersible sewage pump 21, the water outlet pipe 32 comprises a primary leachate outlet pipe 14, a secondary leachate outlet pipe 15 and a groundwater outlet pipe 16. The inspection gate 19 sets up in inlet tube 25 water inlet department, inspection gate controller 4 sets up 1 top of combination formula pump drainage well is used for control opening and closing of inlet tube 25, manhole 19 sets up 1 roof of combination formula pump drainage well, for the maintenance of combination formula pump drainage well 1 provides the entry with maintaining.
The pumping drainage well of the utility model is arranged at the outer side of the flood interception ditch of the landfill or the outer slope toe of the garbage dam, does not occupy the reservoir capacity of the landfill, and avoids damaging the impermeable layer at the bottom of the landfill; the water inlet pipe is connected with the main drainage pipe in the blind ditch at the bottom of the landfill site, and leachate and underground water are collected by means of gravity flow, so that energy consumption is saved; the water inlet of the water inlet pipe is provided with an overhaul gate, and the top plate of the pumping well is provided with an overhaul hole, so that the pumping well can be conveniently overhauled and maintained; a valve and a sampling port are arranged on the water outlet pipe for controlling the water outlet amount and detecting the water outlet quality; HDPE films are laid in the lifting pool, so that leakage of leachate in the pumping drainage well can be effectively avoided; the submersible sewage pump is arranged on the bottom buttress of the tank, so that the submersible sewage pump is effectively prevented from being blocked.
The above illustration is merely an illustration of the present invention, and does not limit the scope of the present invention, and all designs identical or similar to the present invention are within the scope of the present invention.
Claims (10)
1. A landfill leachate and groundwater are taken out and drained well synthetically, characterized by that: the system comprises a lifting pond, wherein the lifting pond comprises a leachate lifting pond and a groundwater lifting pond, an inlet of the leachate lifting pond is communicated with an outlet of leachate of a refuse landfill through a leachate inlet pipe, the height of the inlet of the leachate lifting pond is lower than that of the leachate outlet of the refuse landfill, an inlet of the groundwater lifting pond is communicated with an outlet of groundwater below the refuse landfill through a groundwater inlet pipe, and the height of the inlet of the groundwater lifting pond is lower than that of the groundwater below the refuse landfill;
and the leachate lifting pool and the underground water lifting pool are respectively internally provided with a leachate submersible sewage pump and an underground water submersible sewage pump, and the leachate submersible sewage pump and the underground water submersible sewage pump are respectively communicated to the sewage treatment center through a leachate outlet pipe and an underground water outlet pipe.
2. The landfill leachate and underground water comprehensive pumping drainage well of claim 1, wherein: the lift pond comprises a closed pond wall, and the closed pond wall is made of reinforced concrete or glass fiber reinforced plastics.
3. The landfill leachate and underground water comprehensive pumping drainage well of claim 1, wherein: the leachate lifting pond comprises a primary leachate lifting pond and a secondary leachate lifting pond, wherein the inlet of the primary leachate lifting pond is communicated with the outlet of primary leachate of the refuse landfill through a primary leachate inlet pipe, and the inlet of the secondary leachate lifting pond is communicated with the outlet of secondary leachate of the refuse landfill through a secondary leachate inlet pipe.
4. The landfill leachate and underground water comprehensive pumping drainage well of claim 1, wherein: HDPE impermeable membranes are attached to the inner wall of the lifting pool.
5. The landfill leachate and underground water comprehensive pumping drainage well of claim 1, wherein: the leachate inlet pipe is communicated with the leachate lifting pond through a waterproof sleeve, and the groundwater inlet pipe is communicated with the groundwater lifting pond through a waterproof sleeve.
6. The landfill leachate and underground water comprehensive pumping drainage well of claim 1, wherein: and the leachate outlet pipe and the groundwater outlet pipe respectively pass through the leachate valve well and the groundwater valve well.
7. The landfill leachate and underground water comprehensive pumping drainage well of claim 6, wherein: and the leachate valve well and the underground water valve well are provided with sampling ports and valves.
8. The landfill leachate and underground water comprehensive pumping drainage well of claim 1, wherein: the submersible sewage pump is electrically connected with the liquid level detector.
9. The landfill leachate and underground water comprehensive pumping drainage well of claim 1, wherein: and an access hole is formed in the top of the lifting pool close to the inlet.
10. The landfill leachate and underground water comprehensive pumping drainage well of claim 1, wherein: the bottom of the lifting pool is provided with a buttress, and the submersible sewage pump is arranged on the buttress.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921372961.XU CN210658480U (en) | 2019-08-22 | 2019-08-22 | Landfill leachate and groundwater are taken out and are arranged well synthetically |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921372961.XU CN210658480U (en) | 2019-08-22 | 2019-08-22 | Landfill leachate and groundwater are taken out and are arranged well synthetically |
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| Publication Number | Publication Date |
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| CN210658480U true CN210658480U (en) | 2020-06-02 |
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| CN201921372961.XU Active CN210658480U (en) | 2019-08-22 | 2019-08-22 | Landfill leachate and groundwater are taken out and are arranged well synthetically |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397097A (en) * | 2019-08-22 | 2019-11-01 | 中冶南方都市环保工程技术股份有限公司 | A kind of garbage leachate and Groundwater Comprehensive pump-drainage well |
-
2019
- 2019-08-22 CN CN201921372961.XU patent/CN210658480U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397097A (en) * | 2019-08-22 | 2019-11-01 | 中冶南方都市环保工程技术股份有限公司 | A kind of garbage leachate and Groundwater Comprehensive pump-drainage well |
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