CN206476859U - A kind of leachate collection applied to refuse landfill handles backflow device - Google Patents
A kind of leachate collection applied to refuse landfill handles backflow device Download PDFInfo
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- CN206476859U CN206476859U CN201720043660.7U CN201720043660U CN206476859U CN 206476859 U CN206476859 U CN 206476859U CN 201720043660 U CN201720043660 U CN 201720043660U CN 206476859 U CN206476859 U CN 206476859U
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- leachate
- leachate collection
- well
- recharge
- recirculation
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Abstract
The utility model is related to a kind of leachate collection applied to refuse landfill and handles backflow device, including leachate collection well, leachate collection pipe, collecting pit, diafiltration liquid processing device and leachate recirculation well or/and leachate recirculation ditch, leachate collection pipe is located in leachate collection well and submersible sewage pump is provided with it；Closure packing layer and crushed rock filler layer have been sequentially filled between leachate collection well and leachate collection pipe from top to bottom；Leachate collection pipe bottom is the floral tube section with uniform pore openings；Floral tube section is located in crushed rock filler layer；Collecting pit connection diafiltration liquid processing device and leachate recirculation well or/and leachate recirculation ditch.The utility model can collect percolate to collecting pit again by being discharged or in aerobic repair process after being percolated liquid processing device processing by leachate collection well, need to be by leachate recirculation to leachate recirculation well or/and leachate recirculation ditch if rubbish humidity is too low.
Description
Technical field
The utility model is related to a kind of leachate collection applied to refuse landfill and handles backflow device, belongs to rubbish and fills out
Field is buried to administer and restoration facilities field.
Background technology
Due to historical reasons, the refuse landfill of enormous amount, the general antiseepage of landfill yard are formd in China urban area
Engineering measure is not up to standard, and without percolate and landfill gas collecting system, percolate is randomly discharged, the air on landfill yard and periphery,
The ecological environmental pollutions such as surface water, soil and groundwater are serious, cause the serious waste of land resource.
At present, numerous refuse landfills has become the significant obstacle of restriction regional society economic development, to solve city
City's land used is nervous, implements the improvement reparation in the type place, recovers land development and efficiently utilizes, at home in each big city
Progressively implement.Technical foundation of the China in terms of reparation is administered in refuse landfill and similar contaminated site is more weak, still lacks
Applicable technology and related specifications, needs the recovery technique for developing a collection of economical and efficient, equipment badly to meet growing environment
Repair the demand in market.
Utility model content
The utility model in order to which the above-mentioned technical problem of solution is to provide, receive by a kind of percolate applied to refuse landfill
Collection processing backflow device.
The technical scheme that the utility model solves above-mentioned technical problem is as follows：A kind of percolate applied to refuse landfill
Collect processing backflow device, including leachate collection well, leachate collection pipe, collecting pit, diafiltration liquid processing device and percolate
Inverted well or/and leachate recirculation ditch, the leachate collection pipe are located in the leachate collection well and in it provided with first
Submersible sewage pump；Closure packing layer is sequentially filled between the leachate collection well and the leachate collection pipe from top to bottom and broken
Hardcore layer；The leachate collection pipe bottom is the floral tube section with uniform pore openings；The floral tube section is filled out positioned at the rubble
On the inside of the bed of material；The second submersible sewage pump is provided with the collecting pit or it is externally provided with and connects its internal self priming pump；The percolate
Processing unit is connected with the collecting pit；The leachate recirculation well or/and leachate recirculation ditch and second submersible sewage pump or
Person's self priming pump passes through pipeline communication.
The beneficial effects of the utility model are：The utility model can collect percolate to ground by leachate collection well
Collecting pit again by be percolated liquid processing device processing after discharge or in aerobic repair process, if rubbish humidity is too low, need
By leachate recirculation to leachate recirculation well or/and leachate recirculation ditch.
Diafiltration liquid processing device described in the utility model can be using " pretreatment+biological treatment+advanced treating ", " pre- place
Reason+advanced treating " or " biological treatment+advanced treating ", qualified discharge after processing.
On the basis of above-mentioned technical proposal, the utility model can also do following improvement.
A kind of leachate collection applied to refuse landfill handles backflow device to the utility model as described above, enters one
Step, the leachate collection well internal diameter 500mm~1000mm.
A kind of leachate collection applied to refuse landfill handles backflow device to the utility model as described above, enters one
Step, the leachate collection pipe is PE pipes, UPVC pipes or steel pipe, and its internal diameter is 300~800mm.
It is using above-mentioned further beneficial effect：Managed using PE, UPVC is managed or steel pipe is durable anticorrosive and meets diafiltration
The collection of liquid.
A kind of leachate collection applied to refuse landfill handles backflow device to the utility model as described above, enters one
Filling rubble in step, the leachate recirculation ditch, buries recharge floral tube, the recharge floral tube and the described second latent dirt in rubble
Pump or self priming pump pass through pipeline communication；Aperture 200mm~500mm of the leachate recirculation well, it is interior provided with recharge well casing,
The recharge well casing includes the solid wall pipe section of top 0-10m height, the recharge floral tube section of the perforate of bottom 0.2-2m height；It is described
Closure packing layer and crushed rock filler layer have been sequentially filled between recharge well casing and leachate recirculation well from top to bottom；The recharge flower
Pipeline section is located at crushed rock filler layer inner side.
A kind of leachate collection applied to refuse landfill handles backflow device to the utility model as described above, enters one
Step, the floral tube section, the recharge floral tube and recharge floral tube Duan Junyong geotextiles parcel；The crushed rock filler layer and the closure
Geotextiles are equipped between packing layer.
It is using above-mentioned further beneficial effect：Prevent floral tube section, the recharge floral tube and recharge floral tube section from blocking；And
Prevent the filler that upper strata blocks packing layer from entering crushed rock filler layer.
A kind of leachate collection applied to refuse landfill handles backflow device to the utility model as described above, enters one
Step, the closure packing layer includes upper strata packing layer and lower floor's filler, and lower floor's filler is infiltration coefficient ＜ 10-7Cm/s is compacted
Clay or bentonite, the upper strata packing layer are concrete layer or infiltration coefficient ＜ 10-7Cm/s clay compactions or bentonite.
A kind of leachate collection applied to refuse landfill handles backflow device to the utility model as described above, enters one
Step, the pipeline that the leachate recirculation well or/and leachate recirculation ditch are connected with the submersible sewage pump or self priming pump is provided with company
It is connected with percolate conditioning device and valve and flowmeter.
It is using above-mentioned further beneficial effect：Percolate conditioning device automatically adjusts the pH value of percolate, also simultaneously
Complex micro organism fungicide and nutrient can be added and recharge or throttling can be controlled by valve and flowmeter.
A kind of leachate collection applied to refuse landfill handles backflow device to the utility model as described above, enters one
The rubble of step, the rubble and crushed rock filler layer is 16~32mm graded broken stones.
A kind of leachate collection applied to refuse landfill handles backflow device to the utility model as described above, enters one
Step, in addition to percolate guide ditch, the percolate guide ditch are arranged at refuse landfill bottom and by pipeline and the pipeline
On the 3rd dredge pump connected with the collecting pit.
The utility model floral tube section described above and recharge floral tube section can be arranged on 2~5m of underground.
Brief description of the drawings
Fig. 1 is that a kind of leachate collection applied to refuse landfill of the utility model handles backflow device structural representation
Figure.
In accompanying drawing, the list of parts representated by each label is as follows：
1st, leachate collection well, 2, leachate collection pipe, 3, crushed rock filler layer, 4, lower floor's packing layer, 5, concrete layer, 6,
Second submersible sewage pump, 7, percolate conditioning device, 8, leachate recirculation well, 9, leachate recirculation ditch, 10, junk-heap body, 11, first
Submersible sewage pump, 12, collecting pit, 13, natural ventilation equipment, 14, diafiltration liquid processing device, 15, percolate guide ditch.
Embodiment
Principle of the present utility model and feature are described below in conjunction with accompanying drawing, example is served only for explaining this practicality
It is new, it is not intended to limit scope of the present utility model.
As shown in figure 1, a kind of leachate collection applied to refuse landfill handles backflow device, including leachate collection
Well 1, leachate collection pipe 2, collecting pit 12, diafiltration liquid processing device 14 and leachate recirculation well 8 or/and leachate recirculation ditch 9,
The leachate collection pipe 2 is located in the leachate collection well 1 and the first submersible sewage pump is provided with the leachate collection pipe 2
11；Closure packing layer and rubble have been sequentially filled between the leachate collection well 7 and the leachate collection pipe 2 from top to bottom
Packing layer 3；The bottom of leachate collection pipe 2 is the floral tube section with uniform pore openings；The floral tube section is filled out positioned at the rubble
The inner side of the bed of material 2；The second submersible sewage pump 6 is provided with the collecting pit 12 or it is externally provided with and connects its internal self priming pump, above-mentioned receipts
Collection pond 12 can be arranged on above the ground, can also be arranged on below ground；The diafiltration liquid processing device 14 is collected with described
Pond 12 is connected；The leachate recirculation well 8 or/and leachate recirculation ditch 9 pass through pipe with second submersible sewage pump or self priming pump
Road is connected, for recharge percolate.
The utility model leachate recirculation well 8 or/and leachate recirculation ditch 9 and second submersible sewage pump or self priming pump it
Between pipeline on valve, flowmeter be installed, then pipeline is to recharge ditch or recharge vertical shaft；Flowmeter is used to count recharge
Liquid measure is percolated, recharge percolate quantity can be quantitatively controlled on demand.
The utility model upper end of collecting pit 12 described above is provided with natural ventilation equipment 13, prevents landfill gas to be enriched with risk.
Above-mentioned the first submersible sewage pump and the second submersible sewage pump has explosion prevention function；Submersible sewage pump is opened according to percolate liquid automatic control in well
Stop.
In some specific embodiments, the internal diameter 500mm of the leachate collection well 1~1000mm；The leachate collection pipe 2
It can select to manage or steel pipe for PE pipes, UPVC, its internal diameter is 300~800mm.Steel pipe is the steel pipe by strengthening preservative treatment.
According to the utility model in other specific embodiments, filling rubble in the leachate recirculation ditch 9, in rubble
In bury recharge floral tube, the recharge floral tube passes through pipeline communication with second submersible sewage pump or self priming pump；The percolate
Aperture 200mm~500mm of inverted well 1, it is interior provided with recharge well casing, and the recharge well casing includes the reality of top 0-10m height
Wall pipeline section, the recharge floral tube section of the perforate of bottom 0.2-2m height；From up between the recharge well casing and leachate recirculation well 8
Under be sequentially filled closure packing layer and crushed rock filler layer；The recharge floral tube section is located at crushed rock filler layer inner side；It is described
Recharge well casing and recharge floral tube pass through pipeline communication with second submersible sewage pump 6 or self priming pump；Above-mentioned rubble and described
Crushed rock filler layer rubble can be 16~32mm graded broken stones, packed height from borehole bottom to uppermost floral tube more than
0.5m；The top of the crushed rock filler layer can be located at 0.5 meter of floral tube section top.In a specific example,
The floral tube section and recharge floral tube section are arranged on 2~5m of underground.In another specific example, floral tube section, described
Recharge floral tube and recharge floral tube section are using geotextiles parcel；Soil is equipped between the crushed rock filler layer and the closure packing layer
Work cloth；Specifically, the floral tube section, the recharge floral tube and recharge floral tube section are outer using 200g/ ㎡ non-woven geotextiles parcel；Institute
State and be equipped with 600g/ ㎡ non-woven geotextiles between crushed rock filler layer and the closure packing layer.
The depth and length of above-mentioned floral tube section, the recharge floral tube and recharge floral tube section can be according to landfill waste heap bodies
10 depth is determined.
In other specific embodiments of the utility model, the closure packing layer includes upper strata packing layer and lower floor's packing layer
4, the filler of lower floor's packing layer 4 is infiltration coefficient ＜ 10-7Cm/s clay compactions or bentonite, the upper strata packing layer is mixed
Solidifying soil layer 5 or infiltration coefficient ＜ 10-7Cm/s clay compactions or bentonite.
According to the utility model specific embodiment, in another specific example, the leachate recirculation well 8 or/and ooze
The pipeline that filtrate recharge ditch 9 is connected with the submersible sewage pump or self priming pump is provided with percolate conditioning device 7 and valve and flow
Meter.The percolate conditioning device 7 automatically adjusts the pH value of percolate, while complex micro organism fungicide and nutrition member can also be added
Element and valve and flowmeter can be passed through control recharge or throttling.
The utility model also includes percolate guide ditch, and the percolate guide ditch is arranged at refuse landfill bottom and logical
The 3rd dredge pump on piping and the pipeline is connected with the collecting pit.Meet landfill yard construction requirements.
The utility model leachate recirculation well can be used as extraction well.
Concrete application example
This example device is used for a 6.4 Wan ㎡ of occupation of land refuse landfill, the m of heap body volume about 830,0003, landfill depth
11m~15m.7 mouthfuls of leachate collection wells, 35 leachate recirculation ditches, 1 set of percolate conditioning dress are uniformly arranged in landfill yard
Put, 1 set of diafiltration liquid processing device, using set leachate collection, processing, the backflow device, it is ensured that garbage aerobic reaction is in
Under optimal damp condition, the stabilisation speed of landfill waste is accelerated.After the aerobic improvement of 21 months, the house refuse is filled out
Field is buried to reach《Household refuse landfill sites stabilize and utilize technical requirements》Moderate specified in (GB/T25179-2010) is utilized will
Ask.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in guarantor of the present utility model
Within the scope of shield.
Claims (9)
1. a kind of leachate collection applied to refuse landfill handles backflow device, it is characterised in that including leachate collection
Well, leachate collection pipe, collecting pit, diafiltration liquid processing device and leachate recirculation well or/and leachate recirculation ditch, the diafiltration
Liquid collecting pipe is located in the leachate collection well and the first submersible sewage pump is provided with it；The leachate collection well and the diafiltration
Closure packing layer and crushed rock filler layer have been sequentially filled between liquid collecting pipe from top to bottom；The leachate collection pipe bottom is tool
There is the floral tube section of uniform pore openings；The floral tube section is located at crushed rock filler layer inner side；Provided with the second latent dirt in the collecting pit
Pump or its be externally provided with connection its internal self priming pump；The diafiltration liquid processing device is connected with the collecting pit；The diafiltration
Liquid inverted well or/and leachate recirculation ditch pass through pipeline communication with second submersible sewage pump or self priming pump.
2. a kind of leachate collection applied to refuse landfill handles backflow device according to claim 1, its feature exists
In the leachate collection well internal diameter 500mm~1000mm.
3. a kind of leachate collection applied to refuse landfill handles backflow device according to claim 1, its feature exists
In the leachate collection pipe is PE pipes, UPVC pipes or steel pipe, and its internal diameter is 300~800mm.
4. backflow device is handled according to a kind of any one of claims 1 to 3 leachate collection applied to refuse landfill,
Characterized in that, filling rubble in the leachate recirculation ditch, bury recharge floral tube in rubble, the recharge floral tube with it is described
Second submersible sewage pump or self priming pump pass through pipeline communication；Aperture 200mm~500mm of the leachate recirculation well, is provided with it
Recharge well casing, the recharge well casing includes the solid wall pipe section of top 0-10m height, the recharge flower of the perforate of bottom 0.2-2m height
Pipeline section；Closure packing layer and crushed rock filler layer have been sequentially filled between the recharge well casing and leachate recirculation well from top to bottom；
The recharge floral tube section is located at crushed rock filler layer inner side.
5. a kind of leachate collection applied to refuse landfill handles backflow device according to claim 4, its feature exists
In the floral tube section, the recharge floral tube and recharge floral tube section wrap up geotextiles；The crushed rock filler layer is filled out with the closure
Geotextiles are equipped between the bed of material.
6. a kind of leachate collection applied to refuse landfill handles backflow device according to claim 4, its feature exists
In the closure packing layer includes upper strata packing layer and lower floor's filler, and lower floor's filler is infiltration coefficient ＜ 10-7Cm/s is compacted
Clay or bentonite, the upper strata packing layer are concrete or infiltration coefficient ＜ 10-7Cm/s clay compactions or bentonite.
7. backflow device is handled according to a kind of any one of claims 1 to 3 leachate collection applied to refuse landfill,
Characterized in that, the pipeline that the leachate recirculation well or/and leachate recirculation ditch are connected with the submersible sewage pump or self priming pump
It is provided with percolate conditioning device and valve and flowmeter.
8. a kind of leachate collection applied to refuse landfill handles backflow device according to claim 4, its feature exists
In the rubble and crushed rock filler layer rubble are 16~32mm.
9. backflow device is handled according to a kind of any one of claims 1 to 3 leachate collection applied to refuse landfill,
Characterized in that, also including percolate guide ditch, the percolate guide ditch is arranged at refuse landfill bottom and by pipeline
And the 3rd dredge pump on the pipeline is connected with the collecting pit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720043660.7U CN206476859U (en) | 2017-01-13 | 2017-01-13 | A kind of leachate collection applied to refuse landfill handles backflow device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720043660.7U CN206476859U (en) | 2017-01-13 | 2017-01-13 | A kind of leachate collection applied to refuse landfill handles backflow device |
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| Publication Number | Publication Date |
|---|---|
| CN206476859U true CN206476859U (en) | 2017-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720043660.7U Expired - Fee Related CN206476859U (en) | 2017-01-13 | 2017-01-13 | A kind of leachate collection applied to refuse landfill handles backflow device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109440906A (en) * | 2018-12-03 | 2019-03-08 | 中冶南方都市环保工程技术股份有限公司 | A kind of Leachate site winding shaft applied to refuse landfill |
| CN110616772A (en) * | 2019-09-11 | 2019-12-27 | 张沙莎 | Recharge system for rainwater storage and monitoring and construction method of recharge system |
| CN112663768A (en) * | 2020-12-14 | 2021-04-16 | 华中科技大学 | Leachate recirculation well adopting charcoal adsorbent as filler and preparation method of charcoal adsorbent |
| CN115477443A (en) * | 2022-09-13 | 2022-12-16 | 四川省科源工程技术测试中心 | Landfill leachate recharge system |
-
2017
- 2017-01-13 CN CN201720043660.7U patent/CN206476859U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109440906A (en) * | 2018-12-03 | 2019-03-08 | 中冶南方都市环保工程技术股份有限公司 | A kind of Leachate site winding shaft applied to refuse landfill |
| CN110616772A (en) * | 2019-09-11 | 2019-12-27 | 张沙莎 | Recharge system for rainwater storage and monitoring and construction method of recharge system |
| CN112663768A (en) * | 2020-12-14 | 2021-04-16 | 华中科技大学 | Leachate recirculation well adopting charcoal adsorbent as filler and preparation method of charcoal adsorbent |
| CN115477443A (en) * | 2022-09-13 | 2022-12-16 | 四川省科源工程技术测试中心 | Landfill leachate recharge system |
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| 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: 20170908 Termination date: 20180113 |
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| CF01 | Termination of patent right due to non-payment of annual fee |