CN209443562U - A kind of landfill leachate conditioning tank floating cover - Google Patents
A kind of landfill leachate conditioning tank floating cover Download PDFInfo
- Publication number
- CN209443562U CN209443562U CN201821934427.9U CN201821934427U CN209443562U CN 209443562 U CN209443562 U CN 209443562U CN 201821934427 U CN201821934427 U CN 201821934427U CN 209443562 U CN209443562 U CN 209443562U
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- floating
- conditioning tank
- film
- floating cover
- landfill leachate
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- 238000007667 floating Methods 0.000 claims abstract description 130
- 230000003750 conditioning effect Effects 0.000 claims abstract description 73
- 239000000149 chemical water pollutant Substances 0.000 claims abstract description 24
- 238000004873 anchoring Methods 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000010865 sewage Substances 0.000 claims abstract description 8
- 239000000523 sample Substances 0.000 claims description 14
- 229920006262 high density polyethylene film Polymers 0.000 claims description 13
- 238000007689 inspection Methods 0.000 claims description 13
- 239000004793 Polystyrene Substances 0.000 claims description 12
- 229920002223 polystyrene Polymers 0.000 claims description 12
- 238000003466 welding Methods 0.000 claims description 10
- 229920001903 high density polyethylene Polymers 0.000 claims description 8
- 239000004700 high-density polyethylene Substances 0.000 claims description 8
- 210000005069 ears Anatomy 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 239000004568 cement Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 10
- 238000004332 deodorization Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000010813 municipal solid waste Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 241001232787 Epiphragma Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006353 environmental stress Effects 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920006389 polyphenyl polymer Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000010925 yard waste Substances 0.000 description 1
Landscapes
- Sewage (AREA)
Abstract
A kind of landfill leachate conditioning tank floating cover, the floating cover swims on the conditioning tank sewage water surface cavity shell that a closure is formed with conditioning tank, floating cover main body is the floating head film that geomembrane is welded, floating head film is laid with along conditioning tank side slope, and the anchoring of floating head film edge is due to conditioning tank side slope and seals；Several film strips are set on floating head film, the lower section that several bunchiness floating balls are located at floating cover is fixed in film strips, film strips are anchored in conditioning tank side slope together with floating cover, and gas discharge guiding pipe is arranged along conditioning tank surrounding, below floating head film, nozzle position is higher than conditioning tank peak level.The advantages of there is the utility model floating cover to float form stable, can also be with water level rise and fall, and the rainwater gathered on floating cover can be collected discharge, can also pass into situation in staff's observation conditioning tank above floating cover.
Description
Technical field
The utility model relates to sewage treatment field, especially a kind of landfill leachate conditioning tank floating cover.
Background technique
Landfill leachate refers to the moisture that rubbish itself contains in refuse landfill, the sleet water into landfill yard
And other moisture, the saturation moisture capacity of rubbish, overburden layer is deducted, and undergo waste layer and overburden layer and a kind of high concentration for being formed
Organic wastewater.
What landfill leachate was rubbish during refuse landfill landfill through anaerobic fermentation and precipitation wash away, surface water or
The immersion of underground water and the organic wastewater of high concentration filtered out.The generation of percolate generates biggish with season in refuse landfill
Variation, for the treatment scale and water quality for stablizing percolate treating stations, it is necessary to leachate equalization basin be arranged.Conditioning tank is in percolate
What is be arranged before processing system has homogenizing, Regulation Function or the structures for having sewage disinfection treatment function concurrently.
General landfill yard conditioning tank is to meet year Regulation capacity and the simultaneous needs for playing anaerobic pond, tens of thousands of cubes easily of volume
Rice, even more than ten ten thousand steres, the depth of water are usually no more than ten meters for some, occupied area in thousands of square meters to tens of thousands of square meters etc.,
Atmosphere pollution can be brought to surrounding enviroment to the foul odour that such large area percolate can distribute, seriously affect environment.Meanwhile
Open conditioning tank can collect a large amount of rainwater as percolate during rainy season, increase percolate processing cost.Therefore, usually
Chi Gai is set above conditioning tank, closed covering is carried out to Chi Ding, the foul odour for effectively percolate being prevented to generate expands around
It dissipates, avoids bringing surrounding enviroment atmosphere pollution, protect environment, convenient for collecting the toxic and harmful gas that percolate generates, carry out
It is uniformly processed.Conventional conditioning tank top cover has metal framework structure+glass roof, metal frame+force-bearing plate top cover, cover board+to hang film
Etc. forms.
By the inquiry to available data, following query result is obtained:
1, landfill leachate conditioning tank floating head deodoration system；Application number: CN201220452625.8；Applicant: Zhao Yiwu；
Abstract: a kind of landfill leachate conditioning tank floating head deodoration system, including the geomembrane being overlying on conditioning tank, the bottom of the geomembrane
Face is equipped with floating block, has package geomembrane outside the floating block, and package geomembrane is welded with the geomembrane being overlying on conditioning tank.This reality
There is good deodorization effect, feature easy to implement with novel.
2, the deodorization device for landfill leachate conditioning tank；Application number: CN201420046007.2；Applicant: Changsha
Environmental protection Vocationl Technical College；Abstract: a kind of deodorization device for landfill leachate conditioning tank, including floating head system, institute
Stating floating head system includes the geomembrane being covered on conditioning tank and multiple floating blocks set on geomembrane bottom surface, and the deodorization device is also
Including the exhaust system for collecting biogas, the floating block is equipped with criss-cross exhaust passage, the exhaust system and exhaust
Channel connection.The deodorization device for landfill leachate conditioning tank of the utility model have safe and efficient, good deodorization effect, easily
In implementation, advantage at low cost.
Although it can be seen from the above, existing landfill leachate conditioning tank also has similar floating head formula capping, but having drift
It floats unstable, long-pending rainwater can not be discharged, cannot be introduced into above floating head in observation conditioning tank the disadvantages of situation.
Summary of the invention
The purpose of the utility model is to provide a kind of landfill leachate adjustings for being different from conventional garbage leachate equalization basin
There is pool structure floating cover to float form stable, can also be with water level rise and fall, and the rainwater gathered on floating cover can be received
Collection discharge can also pass into the advantages of staff observes in conditioning tank situation and sampling above floating cover.
The utility model is achieved through the following technical solutions:
A kind of landfill leachate conditioning tank floating cover, the floating cover swim on the conditioning tank sewage water surface and are formed with conditioning tank
The cavity shell of one closure, floating cover main body are the floating head film that geomembrane is welded, floating head film overlap joint welding, entire conditioning tank
Pond face forms a complete, water-tight, gastight floating head film, and the welding standard of floating head film uses and landfill yard waste burying
Antiseepage film welds consistent standard.
Floating head film is laid with along conditioning tank side slope, and conventional Leachate site conditioning tank grade of side slope is not more than 1:1, floating head membrane edge
Edge anchoring is due to conditioning tank side slope and seals；Several film strips are set on floating head film, several bunchiness floating balls are fixed in film strips and are located at
Entire floating head film is propped up floating head on the water surface using buoyancy by the lower section of floating cover, floating ball；Film strips are anchored in together with floating cover
Conditioning tank side slope.Gas discharge guiding pipe is set along conditioning tank surrounding, is located at below floating head film, nozzle position is higher than conditioning tank highest
Water level handles noxious gas emission to the gas handling system that conditioning tank generates, and prevents direct emission from polluting atmosphere.
Rainwater guide slot is set in the middle part of the floating cover, and ballast conduit, ballast conduit free end are placed in lower section in guide slot
In guide slot, lower section is placed ballast conduit and is welded and fixed with geomembrane in guide slot, fixed saddle weight, pressure by ballast conduit
Pouring weight can be sandbag, can increase skin covering of the surface weight, prevent from blowing air over conditioning tank generation negative pressure greatly, adsorb floating epiphragma, meanwhile,
Floating head film can also be formed stereo structure, effectively reduce the uneven phenomenon of film surface, ballast conduit free end is in guide slot
Interior, the other end connects rainwater drainage pipe with hose, drops in the rainwater-collecting on floating cover to guide slot, passes through ballast conduit
Free end is extracted, and outside rainwater pump drainage to conditioning tank, will be avoided rainwater by hose and water pump and is mixed with sewage in conditioning tank, subtracts
Few leachate generation.
Floating head aisle is arranged in the floating cover guide slot two sides, and polystyrene board is wrapped up with geomembrane in floating head aisle, respectively
It is welded in above and below geomembrane, is propped up guide slot two sides using the buoyancy of polystyrene board, inspection personnel can also enter into
Floating cover center, observes the case where floating cover.
Dredging inspection hole is set in the middle part of the floating cover, and dredging inspection hole is one piece of geomembrane package of welding the on floating head film
One polystyrene board, opens circular hole among plate, on circular hole with check pipe insertion and with geomembrane firm welding, check that tube top portion uses
Blank flange blocks.Inspection personnel can go to floating cover center by floating head aisle, open inspection hole plugging plate, insertion mud inspection
Utensil is looked into, is completed after checking, then plugging plate is closed.
Sample tap is set in the middle part of the floating cover, and sample tap is to weld one piece of geomembrane below floating head film to wrap up the second polyphenyl
Vinyl plate opens circular hole among plate, be inserted on circular hole with probe tube and with geomembrane firm welding, sealed using pipe cap at the top of probe tube
It is stifled.Sampling personnel can easily be sampled operation, prevent poisonous gas leakage.
Fixed bunchiness floating ball is ears floating ball in the film strips, is averagely fixed on film strips two sides, and ears floating ball has steady
Fixed not easily shifted advantage can be very good to stablize support floating head film, be not susceptible to the phenomenon that floating head film shakes displacement.
The floating head film and film strips are HDPE film, and polystyrene board is wrapped up with HDPE film in floating head aisle.HDPE film is also claimed
For density polyethylene film with high, HDPE geomembrane, HDPE antiseepage film, there is good antiseptic property, electrical property, humidity resistance, prevent
Seepage property, tensile strength are high, so being to be readily applicable to wire and cable, project seepage controlling, cultivation antiseepage, oil tank antiseepage, basement
The fields such as antiseepage, antiseep of artificial lake.HDPE film have fabulous impact resistance, therefore room temperature even under -40F low temperature such as
This.HDPE film is nontoxic, tasteless, the odorless white particle of high molecular polymer, and fusing point is about 110 DEG C -130 DEG C, relative density
0.918—0.965；With good heat resistance and cold resistance.Chemical stability is good, rigidity and toughness with higher, mechanical
Intensity is good, and resisting environmental stress and cracking is good with tear-resistant strength character, and with the rising of density, mechanical performance and barrier property can phases
It should improve, heat-resisting and tensile strength is also higher；It can the corrosion such as acid and alkali resistance, organic solvent.
The gas discharge guiding pipe is HDPE floral tube, and rainwater discharge guiding pipe is HDPE pipe.HDPE floral tube surrounding is gathered through-hole, harmful
Gas, which can be entered gas discharge guiding pipe by through-hole and be discharged in the methane-generating pit of setting, to be handled or is utilized, and air pumping can be used
It takes or it is allowed freely to be discharged.
Anchoring groove is arranged in the conditioning tank side slope, and floating head film edge and film strips are placed in below anchoring groove, makes above anchoring groove
With backfill rammed earth and cement plate is covered, prevents floating head film and film strips from falling off.Leachate equalization basin is falling for ground trench form
Trapezoidal cross-section conditioning tank, Leachate site conditioning tank grade of side slope are not more than 1:1.
The beneficial effects of the utility model are:
1, the foul odour that can effectively prevent percolate from generating is spread around, avoids bringing surrounding enviroment atmosphere dirty
Dye protects environment；And the toxic and harmful gas of percolate generation is collected, it is uniformly processed.
2, the rainwater within the scope of conditioning tank and percolate in pond can will be dropped into separate, then rainwater is discharged, reduced
Leachate generation.
3, the design of floating head aisle and dredging inspection hole can procurator can also enter into floating cover center, it is low to floating cover
Conditioning tank in sewage the case where observed.
Detailed description of the invention
Fig. 1 is floating cover planar structure schematic diagram；
Fig. 2 is Section A-A structural schematic diagram in Fig. 1；
Fig. 3 is section B-B structural schematic diagram in Fig. 1；
Fig. 4 is C-C cross section structure schematic diagram in Fig. 1；
Figure label explanation:
1, floating head film；2, film strips；3, floating ball；4, gas discharge guiding pipe；5, ballast conduit；6, floating head aisle；7, anchoring groove；8,
Dredging inspection hole；8, dredging inspection hole；81, the first polystyrene board；82, pipe is checked；83, blank flange；9, sample tap；91,
Second polystyrene board；92, probe tube；93, pipe cap.
Specific embodiment
A kind of landfill leachate conditioning tank floating cover, the floating cover swim on the conditioning tank sewage water surface and are formed with conditioning tank
The cavity shell of one closure, floating cover main body are the floating head film 1 that HDPE film is welded, and floating head film 1 is spread along conditioning tank side slope
If the anchoring of floating head film edge is due to conditioning tank side slope and seals；The HDPE film band film of several 0.15m wide is set on floating head film 1
Band 2, fixes the lower section that several bunchiness ears floating balls 3 are located at floating cover in film strips 2, spacing 500mm, film strips 2 with floating head film 1 together
It is anchored in conditioning tank side slope, gas guide floral tube 4 is set along conditioning tank surrounding, is located at below floating cover, nozzle position is higher than
Conditioning tank peak level.
Rainwater guide slot is set in the middle part of the floating cover, and lower section is placed DN200HDPE ballast conduit 5 and is used in combination in guide slot
HDPE film is welded and fixed, and saddle weight is fixed by ballast conduit 5, and sand in dress in saddle weight, 5 free end of ballast conduit is in guide slot
Interior, the other end connects rainwater drainage pipe with hose.
0.5m wide floating head aisle 6 is arranged in the floating cover guide slot two sides, and polystyrene is wrapped up with HDPE film in floating head aisle 6
Plate is respectively welded above and below floating head film 1.
Dredging inspection hole 8 is set in the middle part of the floating cover, and dredging inspection hole 8 is that one piece of HDPE film packet is welded on floating head film 1
The first polystyrene board 81 is wrapped up in, circular hole is opened among plate, the insertion of pipe 82 is checked with the HDPE of DN1000 on circular hole and is welded with HDPE film
It connects securely, checks and blocked at the top of pipe 82 using blank flange 83.
Sample tap 9 is set in the middle part of the floating cover, and sample tap 9 is one piece of HDPE film package second of welding below floating head film 1
Polystyrene board 91 opens circular hole among plate, be inserted on circular hole with DN200HDPE probe tube 92 and with geomembrane firm welding, take
It is blocked at the top of sample pipe 92 using pipe cap 93.
Anchoring groove 7 is arranged in the conditioning tank side slope, and 1 edge of floating head film and film strips 2 are placed in below anchoring groove 7, on anchoring groove 7
Side is using backfill rammed earth and covers cement plate.
Claims (10)
1. a kind of landfill leachate conditioning tank floating cover, which swims on the conditioning tank sewage water surface and forms one with conditioning tank
The cavity shell of a closure, it is characterised in that: floating cover main body is the floating head film (1) that is welded of geomembrane, floating head film (1) along
Conditioning tank side slope is laid with, and the anchoring of floating head film edge is due to conditioning tank side slope and seals；Several film strips are set on floating head film (1)
(2), the lower section that several bunchiness floating balls (3) are located at floating cover is fixed in film strips (2), film strips (2) are anchored in together with floating head film (1)
Conditioning tank side slope is arranged gas discharge guiding pipe (4) along conditioning tank surrounding, is located at below floating cover, and nozzle position is higher than conditioning tank
Peak level.
2. landfill leachate conditioning tank floating cover according to claim 1, it is characterised in that: rain is arranged in the middle part of the floating cover
Water guide slot, the interior lower section of guide slot are placed ballast conduit (5) and are welded and fixed with geomembrane, fixed ballast by ballast conduit (5)
Block, in guide slot, the other end connects rainwater drainage pipe with hose for ballast conduit (5) free end.
3. landfill leachate conditioning tank floating cover according to claim 2, it is characterised in that: the floating cover guide slot two sides
It is arranged floating head aisle (6), floating head aisle (6) wrap up polystyrene board with geomembrane, are respectively welded above floating head film (1) under
Side.
4. landfill leachate conditioning tank floating cover according to claim 1, it is characterised in that: setting is clear in the middle part of the floating cover
Silt inspection hole (8), dredging inspection hole (8) are that one piece of geomembrane of welding wraps up the first polystyrene board (81) on floating head film (1), plate
Circular hole is opened in centre, on circular hole with check pipe (82) insertion and with geomembrane firm welding, check and use method tritonope at the top of pipe (82)
Plate (83) blocks.
5. landfill leachate conditioning tank floating cover according to claim 1, it is characterised in that: setting takes in the middle part of the floating cover
Sample mouth (9), sample tap (9) are to weld one piece of geomembrane below floating head film (1) to wrap up the second polystyrene board (91), are opened among plate
Circular hole, be inserted into probe tube (92) on circular hole and with geomembrane firm welding, blocked using pipe cap (93) at the top of probe tube (92).
6. landfill leachate conditioning tank floating cover according to claim 1, it is characterised in that: fixed on the film strips (2)
Bunchiness floating ball (3) is ears floating ball.
7. landfill leachate conditioning tank floating cover according to claim 1, it is characterised in that: the floating head film (1) and film strips
It (2) is HDPE film.
8. landfill leachate conditioning tank floating cover according to claim 1, it is characterised in that: the gas discharge guiding pipe (4) is
HDPE floral tube.
9. landfill leachate conditioning tank floating cover according to claim 2, it is characterised in that: the rainwater discharge guiding pipe is HDPE
Pipe.
10. landfill leachate conditioning tank floating cover according to claim 1, it is characterised in that: the conditioning tank side slope setting
Anchoring groove (7), floating head film (1) edge and film strips (2) are placed in below anchoring groove (7), and backfill rammed earth is used above anchoring groove (7)
And cover cement plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821934427.9U CN209443562U (en) | 2018-11-22 | 2018-11-22 | A kind of landfill leachate conditioning tank floating cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821934427.9U CN209443562U (en) | 2018-11-22 | 2018-11-22 | A kind of landfill leachate conditioning tank floating cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209443562U true CN209443562U (en) | 2019-09-27 |
Family
ID=68012813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821934427.9U Active CN209443562U (en) | 2018-11-22 | 2018-11-22 | A kind of landfill leachate conditioning tank floating cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209443562U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111218979A (en) * | 2020-03-12 | 2020-06-02 | 陕西一和环境工程有限公司 | Floating cover structure on sewage pool |
| CN112320943A (en) * | 2020-11-09 | 2021-02-05 | 上海复森环境科技发展有限公司 | Floating type membrane cover device for collecting methane |
| CN113026919A (en) * | 2021-03-04 | 2021-06-25 | 北京高能时代环境技术股份有限公司 | Floating cover upper floating pump placing structure |
-
2018
- 2018-11-22 CN CN201821934427.9U patent/CN209443562U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111218979A (en) * | 2020-03-12 | 2020-06-02 | 陕西一和环境工程有限公司 | Floating cover structure on sewage pool |
| CN112320943A (en) * | 2020-11-09 | 2021-02-05 | 上海复森环境科技发展有限公司 | Floating type membrane cover device for collecting methane |
| CN112320943B (en) * | 2020-11-09 | 2025-05-16 | 上海复森环境科技发展有限公司 | A floating membrane cover device for collecting biogas |
| CN113026919A (en) * | 2021-03-04 | 2021-06-25 | 北京高能时代环境技术股份有限公司 | Floating cover upper floating pump placing structure |
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