CN107321752A - A kind of sludge lagoon place Ecosystem restoration system in situ - Google Patents
A kind of sludge lagoon place Ecosystem restoration system in situ Download PDFInfo
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- CN107321752A CN107321752A CN201710501190.9A CN201710501190A CN107321752A CN 107321752 A CN107321752 A CN 107321752A CN 201710501190 A CN201710501190 A CN 201710501190A CN 107321752 A CN107321752 A CN 107321752A
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- Prior art keywords
- layer
- sludge
- gas
- sludge lagoon
- lagoon
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B1/00—Dumping solid waste
- B09B1/004—Covering of dumping sites
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B1/00—Dumping solid waste
- B09B1/006—Shafts or wells in waste dumps
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
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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
- 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
Abstract
The invention discloses a kind of sludge lagoon place Ecosystem restoration system in situ, it is characterised in that：Ecosystem restoration system supports soil layer, nutrition vegetable layer to combine by buoyancy layer, reinforcing layer, leachate collection system, gas gathering system, horizontal impervious layer, rain water collecting system, covering from bottom to up.The present invention can it is economical, Closure cover disposal is fast and effectively carried out to sludge lagoon, and can adapt to sludge digestion degraded and draw its sedimentation and deformation, improve, recovery sludge lagoon periphery ecological environment.
Description
Technical field
Topple over formed sludge lagoon place the present invention relates to municipal sludge sanitary landfills or non-hygiene landfill in situ ecological
Repair system, specifically a kind of sludge lagoon Closure cover structure is received from lower on by buoyancy layer, reinforcing layer, percolate
Collecting system, gas receive the parts such as system, horizontal impervious layer, rain water collecting system, covering support soil layer, nutrition vegetable layer.
The present invention is conducive to gas and liquid collecting and auto-degradation in sludge lagoon stable, while can recover sludge lagoon itself and its periphery ecology
Environment.
Background technology
22,000,000 tons of sludge discharges every year in municipal sewage plant of current China, and is increased with every year about 10% speed, dirty
Mud processing handling problems are increasingly serious.Treatment of Sludge refers to sludge through cell process combined treatment, reach " minimizing, stabilisation,
It is innoxious " overall process of purpose.Sludge treatment refers to sludge after treatment, throw aside with natural environment（Ground, underground, water
In）Or recycle, final mode of dissolving that is steady in a long-term and being had no adverse effects to ecological environment can be reached.At present, sludge
Processing mode mainly has the various ways such as sanitary landfills, land use, burning or recycling.Landfill stabilization small investment, fortune
Row expense is low, and the amount of dissolving is big, is the major way of current China's sludge treatment.But China's Sludge landfill mode is simple and crude,
A large amount of sludge such as are not dehydrated, digested, stablize at the pretreatment, fill the finger such as moisture content, infiltration coefficient, shearing strength of sludge
Mark is far from reaching《Urban wastewater treatment specific resistance to filtration technical specification》In on sludge blended landfill and special fill out
The index request buried.Sludge, which is toppled over, fills formed sludge lagoon（Hole）As artificial " marshland ", easily trigger and ask as follows
Topic：（1）Take a large amount of soils of landfill yard；（2）Sludge sump directly outdoor exposure, periphery lacks safety protection facility, there is safety
Hidden danger；（3）Sewage sludge overflow, substantial amounts of toxic and harmful gas in sludge sump（Mainly include CH4、NH3、H2S, stench etc.）Directly
Connect and diffuse in air, cause sludge sump periphery ecological environment severe, direct threatening environment safety and public health.
Influence for solution sludge lagoon itself and its to periphery ecological environment, it is necessary to place ecology is carried out to sludge lagoon and repaiied
It is multiple.It is general in fluidised form or stream modeling shape yet with sludge in sludge lagoon, with high-moisture, high organic content, high-compressibility,
Hyposmosis coefficient, low shearing strength, and constantly carry out many bad engineering characteristics such as digestion degraded generation landfill gas so that it is right
The work of sludge lagoon site remediation is very intractable.In-situ treatment disposal is carried out to sludge lagoon at present without effective method, is simply covered
Fortifield village's envelope is low due to sludge intensity, exist collapse, the potential safety hazard such as sludge piping；And filled out after in-situ solidifying or dystopy dehydrating and curing
Burying has the shortcomings that long in time limit, occupation of land is big, secondary pollution is serious, it is high to invest, and project is difficult to implement.
The content of the invention
Place restoration of the ecosystem is carried out for economy, fast and effectively to sludge lagoon, its shadow to periphery ecological environment is reduced
Ring, present invention aims at providing reasonable in design, ecological, environmental protective, invest a kind of convenient sludge lagoon of less, construction safety
Place original position Ecosystem restoration system, can be widely used in the in-situ immobilization disposal of sludge lagoon, make its periphery ecological environment
Can effectively it be recovered.
To achieve the above object, the technical solution adopted in the present invention is：A kind of sludge lagoon place restoration of the ecosystem system in situ
System, it is characterised in that：Ecosystem restoration system is from bottom to up by buoyancy layer, reinforcing layer, leachate collection system, gas collection system
System, horizontal impervious layer, rain water collecting system, covering support soil layer, nutrition vegetable layer to combine, and leachate collection system includes
Vertically and horizontally leachate collection french drain, vertically and horizontally leachate collection french drain crosspoint leachate collection well is set, vertically and horizontally percolate
Collect and leachate collection pipe is set in french drain, the leachate collection pipe is connected to leachate collection well, percolate passes through diafiltration
Liquid collects elevator pump or percolate discharge guiding pipe conveying sewage regulating reservoir in well；Gas collection is set on leachate collection french drain
System, the gas gathering system includes the gas-collecting pipe laid along sludge lagoon periphery, lays rubble along gas-collecting pipe, outside
Bag non-woven geotextile formation gas collection french drain；The geosynthetics network of rivers is laid on gas collection french drain and forms gas collection layer,
Soil engineering composite drainage network is anchored into the anchoring groove of sludge lagoon periphery, and gas-collecting pipe is connected by gas discharge guiding pipe and gas discharging apparatus
Connect.
Preferably, described buoyancy layer is spliced to form entirety by some buoyancy plates, and buoyancy plate is by 20 ~ 40cm thickness polyethylene
Cystosepiment respectively sets one layer of 1 ~ 3cm thickness plank to constitute up and down.
Preferably, the reinforcing layer has spinning geotechnique by the high intensity reinforcement of the double-deck vertically and transversely cross-linking arrangements of 300 ~ 400kN/m
Cloth is constituted, and reinforcement cloth is anchored into the anchoring groove of sludge lagoon periphery setting.
Preferably, the horizontal impervious layer is one layer of 1.5mmLLDPE or HDPE geomembrane, and geomembrane anchors into sludge lagoon week
In the anchoring groove of side.
Preferably, rain water collecting system includes being covered in the soil engineering composite drainage network on horizontal impervious layer, and in geotechnique
Composite, water-drain sets longitudinally, laterally rainwater-collecting french drain on the net, and longitudinally, laterally the access of rainwater collection collector is dirty in rainwater-collecting french drain
The rain collection well set in mire, is imported in the surface water channel of sludge lagoon periphery by rainwater discharge guiding pipe or elevator pump.
Preferably, covering supports soil layer to be made up of thickness more than 450mm clay compactions, soil layer infiltration coefficient should be greater than 1 ×
10-4cm/s。
Preferably, nutrition vegetable layer is vegetation growth nutritive layer, and should be greater than the cultivated soil of planting of 150mm by thickness is constituted.
Another object of the present invention is to provide reasonable in design, ecological, environmental protective, the less, construction safety of investment are convenient
A kind of construction method of sludge lagoon place Ecosystem restoration system in situ, can be widely used at the in-situ immobilization of sludge lagoon
Put, its periphery ecological environment is effectively recovered.
To achieve these goals, technical scheme is as follows：A kind of sludge lagoon place Ecosystem restoration system in situ
Construction method, it is characterised in that：This method comprises the following steps：
A, the top layer vegetation removed first in sludge lagoon, rubbish, and pump drainage, Ran Houyan are carried out to the top layer supernatant in sludge lagoon
Builder's road and anchoring groove are built in sludge lagoon periphery；
B, using wooden splint, steel plate, bolt that cystosepiment connection is overall, formation buoyancy layer；
C, after the pre-buried leachate collection well in precalculated position, gas discharge guiding pipe, rain collection well, rainwater discharge guiding pipe, buoyancy layer
The high intensity reinforced geotextile of 2 layers of vertically and transversely cross-linking arrangement of upper laying, first lays longitudinal geotextiles, re-lays horizontal geotextiles；
D, the HDPE leachate collection pipes that laying installation is perforated in the middle part of sludge lagoon, and be connected with leachate collection well, along diafiltration
Liquid collecting pipe lays rubble, outsourcing non-woven geotextile formation leachate collection french drain；
E, the HDPE gas-collecting pipes along the laying installation perforation of sludge lagoon periphery, and connected with gas discharge guiding pipe by elbow bend
Connect；Rubble, outsourcing non-woven geotextile formation gas collection french drain are laid along gas-collecting pipe；Soil is laid on gas collection french drain
Work Compound Water net formation gas collection layer, soil engineering composite drainage network two ends are anchored into anchoring groove；
F, laying HDPE film or LLDPE film horizontal impervious layer, horizontal impervious layer two ends are anchored into anchoring groove；
G, the laying soil engineering composite drainage network formation drainage blanket on horizontal impervious layer, in sludge lagoon medium position, geosynthetics row
The HDPE rainwater collection collectors of perforation are installed in laying on the network of rivers, and are connected with rain collection well, lay rubble along rainwater collection collector, outside
Bag non-woven geotextile formation rainwater-collecting french drain；
H, laying covering are supported soil layer and nutrition vegetable layer, and are compacted.
The present invention economical, fast and effectively can carry out Closure cover disposal to sludge lagoon, and can adapt to sludge digestion
Its sedimentation and deformation is drawn in degraded, improves, recovers sludge lagoon periphery ecological environment.The invention has the advantages that：
1）Sludge lagoon foundation bearing capacity can effectively be solved low, construction machinery, workmen's safety problem；
2）Closure cover structure can bear itself load, it is to avoid sludge lagoon causes sludge after closing under uneven load action
Gush, collapse outside, structure is safe and reliable；
3）The organized collection guide of percolate, landfill gas after closing in sludge lagoon, is conducive to the digestion of sludge, stabilizes；
Meanwhile, sewage, foul smell extravasation pollution surrounding enviroment can be prevented effectively from；
4）The Closure cover system can prevent rainwater, surface water from entering in sludge lagoon, reduce diafiltration output of fluid；
5）The Closure cover system is adapted to the caused sedimentation and deformation of sludge degradation digestion, it is to avoid antiseepage film tensile failure；
6）The Closure cover system can recover sludge lagoon periphery ecological environment, landscape planting, and ecological benefits are good.
Brief description of the drawings
Fig. 1 is sludge lagoon Ecosystem restoration system plan in situ.
Fig. 2 is the A-A profiles in Fig. 1.
Fig. 3 is the B-B profiles in Fig. 1.
Fig. 4 is buoyancy layer cystosepiment connection detail drawing of the present invention.
Fig. 5 is the detail drawing of buoyancy layer cystosepiment connecting portion in Fig. 4.
Fig. 6 is leachate collection well construction detail drawing of the present invention.
Fig. 7 is the C-C profiles in Fig. 1, is percolate of the present invention and rainwater-collecting french drain detail drawing.
Fig. 8 is the D-D profiles in Fig. 1.
Fig. 9 is rain collection well detail of construction of the present invention.
Embodiment
Illustrate embodiments of the present invention, those skilled in the art below by way of specific instantiation and with reference to accompanying drawing
Member can be understood the further advantage and effect of the present invention easily by content disclosed in the present specification.The present invention also can be by other
Different instantiations is implemented or applied, and every details in the present invention can also not carried on the back based on different viewpoints and application
Various modifications and change are carried out under spirit from the present invention.
As shown in Figure 1.It is as follows to the function and structure of lower and upper each layer：
Buoyancy layer 1：Sludge 11 is typically in fluidised form or stream plastic state in sludge lagoon, and its own intensity is extremely low, before sludge consolidation not
Construction operation platform and carrying construction operation load can be formed.In sludge lagoon top layer laying buoyancy layer, buoyancy layer is spelled by buoyancy plate
Entirety is connected into, as shown in Figure 2,3.Buoyancy plate of the present invention sets one by 20 ~ 40cm thickness polyethylene foam sheet is each about 12
Layer 1 ~ 3cm thickness plank 13 is constituted, and sets junction steel plate 14 respectively in the top and bottom of adjacent buoyant plate junction, and each piece is floated
The connection of junction steel plate 14 is worn by 15 pairs of bolt between power plate buoyancy layer is integrally formed.Buoyancy plate planar dimension, bolt specification type
Number and junction steel plate dimensional thickness meet the shaping that cystosepiment is connected with wooden splint, as shown in Figure 4 and Figure 5.
Reinforcing layer 2：In order to support itself load of Closure cover system, reinforcing layer is laid in buoyancy layer surface.Institute of the present invention
State reinforcing layer to be made up of the high intensity reinforcement Woven geofabric 21 of the double-deck vertically and transversely cross-linking arrangements of 300 ~ 400kN/m, reinforcement cloth anchor
In the anchoring groove 9 for entering the setting of sludge lagoon periphery, and reserved certain amount of tension, amount of tension is to estimate sedimentation after sludge lagoon closes
Deflection, can adapt to triggered sedimentation and deformation of degrading.As shown in Figure 2,3.
Leachate collection system 3：In order to effectively collect after closing percolate in sludge lagoon, sludge lagoon is promoted to stabilize,
Leachate collection system is set on reinforcing layer, as described in Figure 2.Leachate collection system of the present invention is received by vertically and horizontally percolate
Collection french drain 31, leachate collection well 32 are constituted, as shown in Figure 1.Vertically and horizontally leachate collection french drain crosspoint sets percolate to receive
Collect leachate collection pipe 33 in well 32, leachate collection french drain 31 and be connected to leachate collection well 32, percolate passes through percolate
The elevator pump or percolate discharge guiding pipe conveying sewage regulating reservoir in well are collected, as shown in Fig. 1, Fig. 6.Percolate of the present invention is received
Collect french drain and HDPE leachate collections pipe 33, rubble outsourcing non-woven geotextile composition, such as Fig. 6 institutes are wrapped up by 20 ~ 40mm graded broken stones
Show.Leachate collection pipe of the present invention is HDPE perforated pipes, and pipe diameter size and percent opening are determined according to percolate water size.
Leachate collection well 32 of the present invention is sealed by DE1000 HDPE prefabricated wells, shaft bottom using certain thickness HDPE shroudings, well
Top is covered using the prefabricated membrane covers 35 of certain thickness HDPE, as shown in Figure 6.
Gas gathering system 4：In order to effectively collect the gas that sludge digestion degraded is produced in sludge lagoon after closing, in diafiltration
Liquid is collected and sets gas gathering system on french drain, as shown in Figure 2,3.Gas gathering system of the present invention is by geosynthetics draining
Net 41, gas collection french drain 42, gas discharge guiding pipe 43, gas discharging apparatus 44 are constituted, as shown in Figure 1.The digested drop of sludge lagoon
Solve the gas produced and gas collection french drain is entered by soil engineering composite drainage network, discharged and filled by gas eventually through gas discharge guiding pipe
Discharge is put, as shown in Figure 8.Soil engineering composite drainage network need to be anchored into sludge lagoon periphery anchoring groove 9, and reserved certain sedimentation and deformation
Amount of tension.Gas collection french drain 42 of the present invention wraps up HDPE gas-collecting pipes 45, rubble outsourcing by 20 ~ 40mm graded broken stones
Non-woven geotextile is constituted, as shown in Figure 2.Gas-collecting pipe of the present invention is HDPE perforated pipes, pipe diameter size and percent opening root
Determined according to gas flow size.Gas discharge guiding pipe of the present invention is HDPE solid wall pipes, and pipe diameter size is determined according to gas flow size.
Gas discharging apparatus of the present invention is made up of blast pipe 46, gas check valve 47, Unpowered ventilation device 48, the bottom of blast pipe 46
Led to by reducing two and connect gas discharge guiding pipe 43, air bleeding valve and Unpowered ventilation device 48 are installed in top, in Unpowered ventilation device 48
Gas check valve 47 is set with the junction of blast pipe 46, the uniform anti-corrosion steel wire rope in blast pipe periphery, blast pipe passes through anti-corrosion steel wire
Rope 49 is fixed, windproof drawing destruction, as shown in Figure 8.
Horizontal impervious layer 5：In order to prevent rainwater and surface water from entering in sludge lagoon, while gas is without group in barrier sludge lagoon
Knit into ambient air, horizontal impervious layer is laid on gas collection layer.Horizontal impervious layer of the present invention is one layer
1.5mmLLDPE or HDPE geomembranes 51, geomembrane is anchored into sludge lagoon periphery anchoring groove 9, and reserved certain sedimentation and deformation is drawn
The amount of stretching, as shown in Figure 2,3.
Rainwater guide system 6：Go deep into collect rainfall in sludge lagoon Closure cover structure sheaf top covering support soil layer
Rainwater, on horizontal impervious layer set rainwater guide system.Rainwater-collecting guide system of the present invention is by geosynthetics
Drainage network 61, rainwater-collecting french drain 62,63 groups of layers of rain collection well, as shown in Figure 1.Soil engineering composite drainage network 61, is covered in anti-
On infiltration layer, and rainwater-collecting in longitudinally, laterally rainwater-collecting french drain, rainwater-collecting french drain is set on soil engineering composite drainage network
The rain collection well set in pipe access sludge lagoon, sludge lagoon periphery surface water channel is imported by rainwater discharge guiding pipe 64 or elevator pump
Or in gutter 65, such as Fig. 1,8 show.Rainwater-collecting french drain of the present invention wraps up rainwater collection collector by 20 ~ 40mm graded broken stones
66, rubble outsourcing non-woven geotextile composition, as shown in Figure 4.Rainwater collection collector of the present invention is HDPE perforated pipes, pipe diameter size
And determination is deeply measured in perforate filter according to rainwater.Rain collection well of the present invention is by DE1000 HDPE prefabricated wells, and shaft bottom uses one
Determine the HDPE shroudings sealing of thickness, Jing Ding is covered using the prefabricated membrane covers 67 of 2.0mm HDPE, as shown in Figure 8.
Soil layer 7 is supported in covering：Top Nutrition Soil is supported, is made up of thickness more than 450mm clay compactions, soil layer infiltration coefficient
It should be greater than 1 × 10-4Cm/s, as shown in Figure 2,3.
Nutrition vegetable layer 8：For vegetation growth nutritive layer, the cultivated soil of planting of 150mm should be greater than by thickness and constitute, soil material Ying Li
In vegetation growth, as shown in Figure 2,3.
Maintenance road 10 is set around the sludge lagoon, and is connected with extraneous road.
The main implementation process of the present invention is as follows：Top layer vegetation garbage-cleaning, sewage pump drainage → build anchoring groove → installation
Lay buoyancy layer → laying reinforcing layer → installation laying leachate collection guide system → laying gas collection layer → laying antiseepage
Soil layer → nutrition vegetable layer → green grass, restoration of the ecosystem is supported in layer → installation laying rainwater-collecting layer → laying covering.
Before sludge lagoon Closure cover is implemented, top layer vegetation in sludge lagoon, rubbish should be removed first, and in sludge lagoon
Top layer supernatant carries out pump drainage, then builds builder's road and anchoring groove along sludge lagoon periphery.Utilize wooden splint, steel plate, bolt
Cystosepiment is connected overall, buoyancy layer is formed.Pre-buried leachate collection well, gas discharge guiding pipe, rain collection well in precalculated position,
After rainwater discharge guiding pipe, 2 floor height intensity reinforced geotextiles are laid.Reinforced geotextile advises that two width are laying unit（Wide 10m）, inciting somebody to action
Geotextiles carry out sewing up for two width geotextiles during being stretched toward sludge face, being seamed on sludge face between each laying unit
Carry out.Longitudinal geotextiles are first laid, horizontal geotextiles are re-layed.Before geotextiles anchoring, geotextiles in field should be made to try one's best loosely, in advance
Stay certain sedimentation and deformation amount of tension.The HDPE leachate collection pipes of perforation are installed in laying in the middle part of sludge lagoon, and are received with percolate
Ji Jing connections, rubble, outsourcing non-woven geotextile formation leachate collection french drain are laid along leachate collection pipe.Along sludge lagoon periphery
The HDPE gas-collecting pipes of perforation are installed in laying, and are connected with gas discharge guiding pipe by elbow bend；Laid along gas-collecting pipe
Rubble, outsourcing non-woven geotextile formation gas collection french drain；The geosynthetics network of rivers is laid on gas collection french drain and forms gas
Collecting layer, the transverse lap width of adjacent geonet is not less than 100mm, and the lap width of longitudinal end is not less than 150mm, geotechnique
Certain sedimentation and deformation amount of tension is reserved at composite drainage network two ends, and is anchored into anchoring groove.Install gas discharging apparatus, and with it is pre-buried
Gas discharge guiding pipe connection.HDPE film or LLDPE film horizontal impervious layer are laid, certain sedimentation and deformation stretching is reserved at antiseepage film two ends
Amount, and anchor into anchoring groove.Sealed between every width antiseepage film by sweat soldering, lap width is not less than 150mm, seam
Place should avoid producing wrinkle as far as possible.Soil engineering composite drainage network formation drainage blanket is laid in antiseepage film, laying is required with exhaust
Layer.The HDPE rainwater collection collectors of perforation, and and rainwater-collecting are installed in laying on sludge lagoon medium position, soil engineering composite drainage network
Well is connected, and rubble, outsourcing non-woven geotextile formation rainwater-collecting french drain are laid along rainwater collection collector.Soil layer and nutrition are supported in covering
Soil, and be compacted.The closing greening of Closure cover nutrition vegetable layer should mutually be coordinated with surrounding landscape, and according to soil thickness, soil
Earth property, weather conditions etc. carry out plants configuration.
Above-mentioned embodiment is used for illustrating the present invention, rather than limits the invention, the present invention's
In spirit and scope of the claims, any modifications and changes made to the present invention both fall within the protection model of the present invention
Enclose.
Claims (7)
1. a kind of sludge lagoon place Ecosystem restoration system in situ, it is characterised in that：Ecosystem restoration system from bottom to up by buoyancy layer,
Soil layer, nutrition are supported in reinforcing layer, leachate collection system, gas gathering system, horizontal impervious layer, rain water collecting system, covering
Vegetable layer is combined, and leachate collection system includes vertically and horizontally leachate collection french drain, and vertically and horizontally leachate collection french drain is handed over
Crunode sets leachate collection well, and leachate collection pipe, the leachate collection pipe are vertically and horizontally set in leachate collection french drain
Leachate collection well is connected to, percolate conveys sewage by the elevator pump in leachate collection well or percolate discharge guiding pipe and adjusted
Pond, gas gathering system is set on leachate collection french drain；The gas gathering system includes what is laid along sludge lagoon periphery
Gas-collecting pipe, rubble, outsourcing non-woven geotextile formation gas collection french drain are laid along gas-collecting pipe；In gas collection french drain
The upper laying geosynthetics network of rivers forms gas collection layer, and soil engineering composite drainage network is anchored into the anchoring groove of sludge lagoon periphery, and gas is received
Collector is connected by gas discharge guiding pipe with gas discharging apparatus.
2. a kind of sludge lagoon place Ecosystem restoration system in situ according to claim 1, it is characterised in that：Described buoyancy
Layer is spliced to form entirety by some buoyancy plates, and buoyancy plate respectively sets one layer of 1 ~ 3cm up and down by 20 ~ 40cm thickness polyethylene foam sheet
Thickness plank is constituted.
3. a kind of sludge lagoon place Ecosystem restoration system in situ according to claim 1, it is characterised in that：The reinforcing layer
It is made up of the high intensity reinforcement Woven geofabric of the double-deck vertically and transversely cross-linking arrangements of 300 ~ 400kN/m, reinforcement cloth anchors into sludge lagoon week
In the anchoring groove that side is set.
4. a kind of sludge lagoon place Ecosystem restoration system in situ according to claim 1, it is characterised in that：Rainwater-collecting system
System includes being covered in the soil engineering composite drainage network on horizontal impervious layer, and is set longitudinally, laterally on soil engineering composite drainage network
Rainwater-collecting french drain, the rain collection well longitudinally, laterally set in rainwater-collecting french drain in rainwater collection collector access sludge lagoon, leads to
Cross rainwater discharge guiding pipe or elevator pump is imported in the surface water channel of sludge lagoon periphery.
5. a kind of sludge lagoon place Ecosystem restoration system in situ according to claim 1, it is characterised in that：The level is prevented
Infiltration layer is one layer of 1.5mmLLDPE or HDPE geomembrane, and geomembrane is anchored into the anchoring groove of sludge lagoon periphery.
6. a kind of sludge lagoon place Ecosystem restoration system in situ according to claim 1, it is characterised in that：Soil is supported in covering
Layer is made up of thickness more than 450mm clay compactions, and soil layer infiltration coefficient should be greater than 1 × 10-4cm/s.
7. a kind of sludge lagoon place Ecosystem restoration system in situ according to claim 1, it is characterised in that：Nutrition vegetable layer
For vegetation growth nutritive layer, the cultivated soil of planting of 150mm should be greater than by thickness and constitute.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109047267A (en) * | 2018-09-27 | 2018-12-21 | 苏州金螳螂园林绿化景观有限公司 | Degeneration system is polluted in refuse landfill |
| WO2021000487A1 (en) * | 2019-07-02 | 2021-01-07 | 北京高能时代环境技术股份有限公司 | Detachable flexible floating cover |
| CN114033009A (en) * | 2021-11-02 | 2022-02-11 | 湘潭大学 | Ecological restoration construction method and system for surface sludge of sludge landfill |
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| CN1769215A (en) * | 2005-09-08 | 2006-05-10 | 浙江大学 | Method and system for floating composite botanical zone in situ biologically rehabilitating water body |
| CN1785536A (en) * | 2005-10-21 | 2006-06-14 | 同济大学 | On site environment restoring method of demestic garbage loading embedding field |
| US20100272516A1 (en) * | 2006-09-14 | 2010-10-28 | Ayers Michael R | Cover system with gas collection system for waste sites and environmental closures |
| KR20100117470A (en) * | 2009-04-25 | 2010-11-03 | 이주형 | Eco landfill facility structure |
| CN201817805U (en) * | 2010-08-13 | 2011-05-04 | 中国水电顾问集团华东勘测设计研究院 | Closure structure of sludge house |
| CN204456052U (en) * | 2014-12-18 | 2015-07-08 | 北京高能时代环境技术股份有限公司 | The ecology closing structure of the solid soil of reinforcement |
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| CN109047267A (en) * | 2018-09-27 | 2018-12-21 | 苏州金螳螂园林绿化景观有限公司 | Degeneration system is polluted in refuse landfill |
| WO2021000487A1 (en) * | 2019-07-02 | 2021-01-07 | 北京高能时代环境技术股份有限公司 | Detachable flexible floating cover |
| CN114033009A (en) * | 2021-11-02 | 2022-02-11 | 湘潭大学 | Ecological restoration construction method and system for surface sludge of sludge landfill |
| CN114033009B (en) * | 2021-11-02 | 2022-10-21 | 湘潭大学 | Ecological restoration construction method and system for surface sludge of sludge landfill |
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