CN211637694U - Percolate collecting well of household garbage landfill - Google Patents
Percolate collecting well of household garbage landfill Download PDFInfo
- Publication number
- CN211637694U CN211637694U CN201922484329.0U CN201922484329U CN211637694U CN 211637694 U CN211637694 U CN 211637694U CN 201922484329 U CN201922484329 U CN 201922484329U CN 211637694 U CN211637694 U CN 211637694U
- Authority
- CN
- China
- Prior art keywords
- straight
- well
- wall pipe
- landfill
- collecting well
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000010813 municipal solid waste Substances 0.000 title claims description 32
- 238000001914 filtration Methods 0.000 claims abstract description 20
- 239000004744 fabric Substances 0.000 claims abstract description 15
- 239000000149 chemical water pollutant Substances 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 229920001903 high density polyethylene Polymers 0.000 claims description 7
- 239000004700 high-density polyethylene Substances 0.000 claims description 7
- 239000004927 clay Substances 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 5
- 238000005086 pumping Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 239000010963 304 stainless steel Substances 0.000 claims description 3
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 10
- 239000010791 domestic waste Substances 0.000 abstract description 9
- 239000007788 liquid Substances 0.000 abstract description 9
- 238000009434 installation Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 239000005442 atmospheric precipitation Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000002352 surface water Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003895 groundwater pollution Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/30—Landfill technologies aiming to mitigate methane emissions
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The utility model relates to a domestic waste landfill leachate collecting well, collecting well include straight wall pipe, parcel at the drainage layer of straight wall outside of tubes side, install at the inside submerged motor pump of straight wall pipe and the filtration liquid drainage pipe that links to each other with the submerged motor pump delivery port, are equipped with the screen cloth between straight wall pipe and the drainage layer, have realized that collecting well prevents stifled function, and filtration liquid collecting well passes through the utility model provides an installation method installs in the landfill. Compared with the prior art, the utility model has the advantages of prevent blockking up, anticorrosive, longe-lived.
Description
Technical Field
The utility model belongs to the technical field of the landfill leachate treatment technique and specifically relates to a domestic waste landfill leachate collection well is related to.
Background
With the development of urbanization, urban domestic garbage in China is increased sharply, and at present, only domestic garbage in China can generate 1.2 × 10 per year8t is about, and the rate of the harmless treatment of the household garbage is increased by 8 to 10 percent per year, the harmless treatment rate of the household garbage is only 2.3 percent, most of the household garbage are transported to the suburbs for open-air stacking, and the accumulated stacking quantity reaches 60 × 108t, make 200 more citiesIs trapped in the serious situation of 'garbage enclosing cities'. Landfill is an effective method for largely consuming municipal solid waste and is one of the final disposal methods of all the residues of the garbage disposal process.
The domestic garbage leachate is water generated by compacting and biodegrading garbage and foul liquid obtained by percolating rainwater, surface water and underground water in a landfill through a garbage layer. The sources of the method mainly comprise water contained in the garbage, reverse osmosis of underground diving and atmospheric precipitation, wherein leachate formed by the atmospheric precipitation accounts for the most part of the total amount. An unqualified landfill is a huge renewable pollution source, and the pollution duration can be as long as decades, even hundreds of years. Once the groundwater supply and surrounding soil are contaminated with it, the technique of re-purification by manual means is difficult and extremely expensive.
The disposal mode of the domestic refuse landfill constructed in the early stage is mostly simple landfill, and no measures such as bottom and periphery seepage prevention are taken, so that the percolate of the refuse landfill flows into the underground through surface runoff and underground seepage, and the underground water is seriously polluted. The development of the groundwater pollution remediation work of the refuse landfill is one of the main concerns of the national environmental protection agency during the thirteen-five period, so that measures are urgently needed to solve the diffusion pollution of the domestic refuse landfill to regional water and soil.
For the early-built household garbage landfill, the arrangement of the percolate collecting well is an effective method for collecting percolate, the original percolate collecting well adopts a sand-free concrete pipe or a gravel layer structure, the percolate collecting well is easy to block and poor in anti-corrosion effect, and the service life of the percolate collecting well is short.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the defects of the prior art and providing a percolate collecting well of a domestic garbage landfill site, which has the advantages of blockage prevention, corrosion prevention and long service life, and an installation method thereof.
The purpose of the utility model can be realized through the following technical scheme:
a percolate collecting well for a domestic garbage landfill comprises a straight wall pipe, a water filtering layer wrapped outside the straight wall pipe, a submersible electric pump arranged inside the straight wall pipe and a percolate pumping and discharging pipe connected with the water outlet of the submersible electric pump; the straight-wall pipe and the water filtering layer are provided with the screen cloth, so that the anti-blocking function of the collecting well is realized.
Preferably, a plurality of through holes are uniformly formed in the straight-wall pipe.
More preferably, the diameter of the through hole is 20-30 mm.
Preferably, the straight-wall pipe is made of high-density polyethylene.
Preferably, the drainage layer is a gravel drainage layer.
Preferably, the collecting well is also provided with a control circuit for controlling the submersible electric pump.
Preferably, the mesh cloth is made of 304 stainless steel, and the gap of the mesh cloth is 3 mm.
Preferably, the collection well is provided with clay for sealing above the water filtering layer.
Compared with the prior art, the utility model has the advantages of it is following:
firstly, anti-blocking: former filtration liquid collection well tube well adopts no sand concrete, and space control is inhomogeneous, easy jam, two the utility model discloses an evenly punch on HDPE straight wall pipe, the scheme of two-layer 3mm stainless steel screen cloth of pipe outer wall winding has solved the easy problem that blocks up of collection well.
Secondly, the anticorrosion effect is good: domestic waste landfill leachate has stronger corrosivity because COD content is than higher, to the concrete, the utility model provides a straight wall pipe of HDPE of even cloth hole is adopted to the collection well, especially to the higher domestic waste landfill leachate of organic matter content concentration, straight wall pipe of HDPE has good corrosion resisting property.
Thirdly, the service life is long: the utility model provides a domestic waste filtration liquid collecting well surpasss 1 times than the filtration liquid collecting well life who is using at present. The service life of the currently used percolate collecting well is 2-3 years, and the service life of the percolate collecting well is 6-8 years.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The reference numbers in the figures indicate:
1. the device comprises a straight-wall pipe, 2, a water filtering layer, 3, a submersible electric pump, 4, a percolate pumping and discharging pipe, 5, a control circuit, 6 and clay.
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 some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.
The utility model relates to a domestic waste landfill filtration liquid collecting well, collecting well's structure is as shown in figure 1, take out calandria 4 including straight-walled pipe 1, parcel drainage bed 2 in the straight-walled pipe 1 outside, install at the submerged motor pump 3 of straight-walled pipe 1 inside and the filtration liquid that links to each other with submerged motor pump 3 delivery port, be equipped with the screen cloth between straight-walled pipe 1 and the drainage bed 2, realized collecting well prevent stifled function.
The straight-walled tube 1 in this embodiment is provided with a plurality of uniformly arranged through holes for allowing the leachate to flow into the straight-walled tube. The diameter of the through hole is 20-30 mm.
The straight-wall pipe 1 is made of high-density polyethylene material, the outer diameter of the pipe is 800mm, and the wall thickness is 4.7 mm.
The water filtering layer 2 in the embodiment adopts a gravel water filtering layer, and the used mesh cloth is 304 stainless steel mesh cloth with a gap of 3 mm. The winding of stainless steel screen cloth is in the outside of straight-walled pipe 1, and total two-layer, the setting of screen cloth can prevent that the gravel from through getting into straight-walled pipe to lead to collecting the well jam.
A control circuit 5 for controlling the submersible electric pump 3 is also arranged in the straight-wall pipe 1, and an external controller controls the submersible electric pump 3.
The gravel filtering layer is filled between the mesh cloth and the well wall, and clay 6 for sealing is arranged above the gravel filtering layer.
The installation process of the collecting well specifically comprises the following steps:
step 1: carrying out on-site measurement and positioning, and determining the installation position of a collecting well;
step 2: drilling and adding a protective wall on the well wall;
and step 3: backfilling a sand cushion layer at the bottom of the well;
and 4, step 4: washing the well;
and 5: installing a well pipe centralizer;
step 6: hoisting a well casing, namely a perforated straight-wall pipe, wherein the outer side of the straight-wall pipe is provided with screen cloth;
and 7: filling a filter layer in the gap between the straight-wall pipe and the well wall on the outer side of the mesh cloth;
and 8: filling clay for sealing above the filter layer at the gap between the straight wall pipe and the well wall;
and step 9: installing a submersible electric pump in the straight wall pipe, installing a percolate pumping and discharging pipe, and connecting the pumping and discharging pipe with a water outlet of the submersible electric pump;
step 10: installing a submersible electric pump control circuit and debugging;
step 11: and finishing the installation of the collecting well.
The following requirements need to be met when the installation is carried out:
1. the straight-wall pipe has no defects of incomplete, fracture, bending and the like;
2. the bending degree of each meter of the straight-wall pipe is not more than 3 mm;
3. the plane of the upper and lower openings of the straight-wall pipe is perpendicular to the axis of the well pipe, and the inclination deviation of the plane of the opening does not exceed 1.5 percent of the outer diameter of the straight-wall pipe.
And 6, when the straight-wall pipe is hung and placed in the step 6, the pipe is placed in a tray-to-pipe mode, and the well pipe is connected in a straight alignment mode and tightly closed. When the straight-wall pipe is hung and put down, the well pipe centralizer needs to be installed, and the outer diameter of the well pipe centralizer is 30-50 mm smaller than the diameter of a well hole. The number of centralizers is determined by the depth of the well and the type of well pipe, and typically a group is installed at 6.0m intervals.
Following the utility model discloses a concrete application example and the effect of well filtration liquid collecting well:
the landfill site of the postsea pond is positioned in the Ningbo town sea area and is built and used in 1986, the disposal mode is simple landfill, and measures such as bottom and peripheral seepage prevention are not needed, namely simple treatment modes such as flattening, compacting, covering and the like are adopted. The amount of domestic garbage disposed in the sea pond garbage landfill site is less before 1997 and is basically limited to the land of Zhenhai old customs, and after 1997, with the promotion of rural comprehensive treatment and the acceleration of urbanization process, the domestic garbage in each village and town of the whole area is also transported to the landfill site for disposal, and simultaneously with the rapid increase of population, the amount of garbage disposed in the landfill site is increased rapidly. The post-sea pond garbage landfill site is mainly responsible for the absorption and landfill of non-toxic and harmless garbage such as whole-area domestic garbage, building garbage, decoration garbage and the like before 2007, and only receives the non-toxic, non-harmful and non-incineratable garbage such as buildings, decorations and the like after 2007. Since the landfill site of the postsea pond has no anti-seepage measure, the landfill leachate seeps into the ground, which can cause serious pollution to the ground water.
And (4) sampling water quality in open ditches and investigation holes in a domestic garbage landfill of a back sea pond by Tianyi building design limited company of Ningbo city in 9 months in 2018, and analyzing. According to the analysis of the water sample of the drilled hole, the surface water quality of the refuse landfill site of the rear sea pond is still enough, and the water quality standard of sewage drainage urban sewer GB/T31962-2015 is met. The water quality of the domestic garbage percolate has higher local COD, which exceeds the water quality requirement of GB/T31962-2015 Water quality Standard for Sewage discharge to urban sewers. A percolate collecting system is required to be arranged on the domestic garbage landfill of the rear sea pond.
The length and width of the domestic garbage landfill field of the rear sea pond are about 360m and 270m, and the total land occupation is 10 hectare. For collecting field domestic waste leachate, set up phi 800 leachate collection well 16 places altogether in the field, the degree of depth is about 10.0 ~ 15.0m, set up one stealthily dirty pump in every leachate collection well, and the parameter of every stealthily dirty pump is: q is 1.0L/S, H is 20.0m, and N is 2.2 Kw. The collected percolate is lifted by a pump and then is conveyed to a field storage tank by a special percolate collecting pipe (adopting a HDPE straight-wall pipe).
The utility model provides a domestic waste landfill leachate collection well obtains better application in the pond domestic waste landfill of back, and is thus visible, the utility model discloses stronger practicality has.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. The percolate collecting well for the household garbage landfill is characterized by comprising a straight-wall pipe (1), a water filtering layer (2) wrapped outside the straight-wall pipe (1), a submersible electric pump (3) installed inside the straight-wall pipe (1) and a percolate pumping and discharging pipe (4) connected with a water outlet of the submersible electric pump (3); the straight-wall pipe (1) and the water filtering layer (2) are provided with screen cloth therebetween, so that the anti-blocking function of the collecting well is realized.
2. The leachate collection well of the domestic refuse landfill according to claim 1, wherein the straight-wall pipe (1) is provided with a plurality of uniformly arranged through holes.
3. The leachate collection well of claim 2, wherein the diameter of the through hole is 20-30 mm.
4. The landfill leachate collection well of claim 1, wherein the straight-wall pipe (1) is made of high density polyethylene.
5. The landfill leachate collecting well of claim 1, wherein the water filtration layer (2) is a gravel water filtration layer.
6. The leachate collection well of domestic refuse landfill according to claim 1, wherein said collection well is further provided with a control circuit (5) for controlling the submersible electric pump.
7. The leachate collection well of claim 1, wherein said mesh is made of 304 stainless steel, and the gap of said mesh is 3 mm.
8. The leachate collection well of claim 1, wherein the collection well is provided with clay (6) for sealing above the drainage layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922484329.0U CN211637694U (en) | 2019-12-31 | 2019-12-31 | Percolate collecting well of household garbage landfill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922484329.0U CN211637694U (en) | 2019-12-31 | 2019-12-31 | Percolate collecting well of household garbage landfill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211637694U true CN211637694U (en) | 2020-10-09 |
Family
ID=72702369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922484329.0U Expired - Fee Related CN211637694U (en) | 2019-12-31 | 2019-12-31 | Percolate collecting well of household garbage landfill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211637694U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113118172A (en) * | 2019-12-31 | 2021-07-16 | 上海浦东建筑设计研究院有限公司 | Percolate collecting well of domestic garbage landfill and installation method thereof |
| CN113718933A (en) * | 2021-08-25 | 2021-11-30 | 天津市政工程设计研究总院有限公司 | Built-in leachate collection and discharge modularized pump station device in refuse landfill |
-
2019
- 2019-12-31 CN CN201922484329.0U patent/CN211637694U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113118172A (en) * | 2019-12-31 | 2021-07-16 | 上海浦东建筑设计研究院有限公司 | Percolate collecting well of domestic garbage landfill and installation method thereof |
| CN113718933A (en) * | 2021-08-25 | 2021-11-30 | 天津市政工程设计研究总院有限公司 | Built-in leachate collection and discharge modularized pump station device in refuse landfill |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211637694U (en) | Percolate collecting well of household garbage landfill | |
| KR20130011268A (en) | Nonpoint-pollution filtration style permeation ditch purification system | |
| KR100699326B1 (en) | Rainwater processing unit and method | |
| WO2019061869A1 (en) | Integrated rainwater treatment device | |
| CN111608245A (en) | Method for purifying and storing water by using urban inspection well | |
| CN216765832U (en) | In-situ consolidation treatment device for large-diameter vacuum pipe well of municipal domestic sludge | |
| CN112814126A (en) | Municipal road-based rainwater collection device and construction method thereof | |
| CN113118172A (en) | Percolate collecting well of domestic garbage landfill and installation method thereof | |
| CN113006127B (en) | In-situ repair system and method for replaceable tailing pond leachate | |
| KR101038336B1 (en) | Method for introducing underground water using water storage tank in gutter, and filtering apparatus for reducing non-point source pollution | |
| CN210419496U (en) | Pollution prevention and control system for mine waste land | |
| CN210238200U (en) | Road drainage structure based on sponge city | |
| CN209338160U (en) | A kind of interior circulation well system being aerated of well | |
| Zahari et al. | Leachate generation, transport, and control | |
| KR101072407B1 (en) | A build up method of filter layer for bank filtered water and a catchment apparatus of bank filtered water | |
| CN110842018A (en) | Leaching system and method suitable for high-water-content heavy metal polluted clay | |
| CN111663626A (en) | Water pipe system of sponge city | |
| NZ565844A (en) | Stormwater collection and underground storage and treatment using aerobic bacteria and settlement of particulates in a near hoizontal stream | |
| CN205556210U (en) | Sewage treatment device | |
| CN115815311B (en) | Management and control restoration system and method for polluted underground water | |
| JP3441687B2 (en) | On-site wastewater treatment equipment | |
| CN217232043U (en) | Coal dust pollution place initial stage rainwater collection distribution well | |
| CN214005811U (en) | Sponge urban rainwater runoff control system | |
| CN218539402U (en) | Metal mine underground abandoned roadway sewage in-situ remediation system | |
| CN219621003U (en) | Water conservancy pesticide contaminated water treatment facilities |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201009 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |