CN106677226A - Flexible barrier having restoration and vertical obstruction functions and preparation and application thereof - Google Patents
Flexible barrier having restoration and vertical obstruction functions and preparation and application thereof Download PDFInfo
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- CN106677226A CN106677226A CN201611022133.4A CN201611022133A CN106677226A CN 106677226 A CN106677226 A CN 106677226A CN 201611022133 A CN201611022133 A CN 201611022133A CN 106677226 A CN106677226 A CN 106677226A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/002—Ground foundation measures for protecting the soil or subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/004—Sealing liners
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- General Life Sciences & Earth Sciences (AREA)
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Abstract
The invention discloses a flexible barrier having restoration and vertical obstruction functions. The flexible barrier having the restoration and vertical obstruction functions comprises a restoration functional portion and a vertical obstruction portion. The restoration functional portion comprises two layers of nonwoven geotextile and a restoration functional material layer placed between the two layers of nonwoven geotextile. The vertical obstruction portion is composed of HDPE geomembrane. The vertical obstruction portion is fixed to the outer side of one of the two layers of nonwoven geotextile of the restoration functional portion. The flexible barrier having the restoration and vertical obstruction functions is established in the manner that the restoration functional portion and the HDPE geomembrane are combined, the problems that a traditional vertical anti-seepage barrier do not have the restoration function, and a permeable reactive barrier do not have the vertical obstruction function are solved, and the flexible barrier having the restoration and vertical obstruction functions has the advantages of being simple in construction, good in anti-seepage effect, good in restoration function and the like.
Description
Technical field
The present invention relates to subsoil water antiseepage and environment remediation field, and in particular to one kind has repairs and vertical divider function
Flexible barrier and its preparation and application.
Background technology
With the fast development of China's industry, environmental pollution is caused also to be on the rise.Some chemical industry, the heap of bargh
Field, dump leaching field, Tailings Dam etc. lack effective seepage control measure, cause industrial waste (liquid), chemical products, slag etc. to soil and
Body of groundwater causes pollution, the environment that serious harm people depend on for existence.
The permeable reactive wall technology filled based on nano zero valence iron is widely used for containing heavy metal, petroleum hydrocarbon, nitro
The groundwater remediation of aromatic is processed.Permeable reactive wall recovery technique has simple to operate, flexible arrangement, operating cost
Low, the advantage of environment Small side effects is a kind of attractive groundwater remediation technology.But substantial amounts of test shows：By
Its surface is set easily to be oxidized and be susceptible to reunite in the special construction of nano zero valence iron so as to which reactivity is reduced.Secondly, it is long
The subsoil water souring of phase also results in the loss of Zero-valent Iron so as to be difficult to reach preferable repairing effect.Therefore, based on oozing
Transflection answers wall technology difficulty or ease effectively to realize the vertical divider to pollutant.
Vertical seepage control can effectively realize the vertical divider to pollutant, control lateral transfer and the diffusion of pollutant.In
State's patent CN104499510A discloses compound vertical seepage control barrier with CN104805871A, adopts HDPE geomembranes for main body
Impervious material, vertical seepage control barrier is laid to realize the vertical divider to pollutant by vertical channel technique to contaminated site.
The vertical seepage control barrier has the advantages that good seepage-proof property, wide adaptability, its osmotic coefficient k≤1.0 × 10-7cm/s.But, should
Vertical seepage control barrier is, in contaminated site, can not to realize repairing pollutant in the way of physics by pollutant vertical divider
Multiple degraded.
The content of the invention
The invention solves the problems that key technical problem be that existing permeable reactive wall does not possess effective vertical divider function, vertically
Intercepting wall cannot realize repair function.
A kind of flexible barrier with reparation with vertical divider function that the present invention is provided, including：
Repair function portion, it includes：Two-layer non-woven geotextile and the repair function material being located between the harmless geotextiles of two-layer
The bed of material；
Vertical divider portion, it is made up of HDPE geomembranes, and wherein the one of the repair function portion is fixed in the vertical divider portion
The outside of non-woven geotextile.
Preferably, the non-woven geotextile is one kind or its combination of polyester-type or polypropylene non-woven geotextile, described
The gram weight specification 300g/m of non-woven geotextile2~600g/m2.It is highly preferred that the non-woven geotextile spins for high-strength thick denier polypropylene
Viscous needle-punched geotextiles.
The thickness of the repair function material layer is 3-5cm, and the repair function material layer contains bentonite, attapulgite clay and receives
The loaded mesoporous material of rice Zero-valent Iron.
Preferably, in the repair function material layer the loaded mesoporous material of bentonite, attapulgite clay and nano zero valence iron quality
Than for 1 ~ 2:1~2:7.
The loaded mesoporous material of nano zero valence iron carries out loading the material for obtaining for mesoporous material Al-SBA-15 to nano zero valence iron
Material Fe(0)The load capacity of/Al-SBA-15, wherein nano zero valence iron is 10-20wt%.
The preparation method of the repair function material of the repair function material layer comprises the steps：Take bentonite, attapulgite clay
With the loaded mesoporous material mixing of nano zero valence iron, pelletize obtains final product.Preferably, swelling soil granularity in the repair function material layer
For 200 mesh, attapulgite clay granularity is 400 mesh, and the grain diameter of repair function material is 0.5-2mm.
Adhesive layer is provided between the vertical divider portion and the repair function portion, adhesive layer is solid by the bonding of vertical divider portion
Due to the outside of a wherein non-woven geotextile in the repair function portion.
The adhesive layer is rubberized asphalt non-cured water-proof coating layer.
The vertical divider portion is the thick HDPE geomembranes of 2mm ~ 3mm.
The present invention also provides the above-mentioned preparation method with reparation with the flexible barrier of vertical divider function, including as follows
Step：
1）The preparation of repair function material：The loaded mesoporous material mixing of bentonite, attapulgite clay and nano zero valence iron is taken, pelletize is obtained final product；
2）The preparation in repair function portion：Repair function material is laid on ground floor non-woven geotextile and forms repair function material
Layer, then re-lays above it second layer non-woven geotextile, is then made by needling process using the fiber of non-woven geotextile
Obtain ground floor non-woven geotextile and second layer non-woven geotextile is fixed together, and ground floor non-woven geotextile and second layer nonwoven soil
Sandwiched repair function material layer in the middle of work cloth；
3）The fixation in vertical divider portion：Repair function portion is tiled first, then forms adhesive layer in its one side spraying adhesive,
Vertical divider portion is covered on adhesive layer with fixation.
Specifically, repair function portion is tiled first, then rubberized asphalt non-cured water-proof coating is poured into during material is filled and is added
Heat, when coating bulk temperature reaches sprayable state, is equably sprayed rubberized asphalt non-cured water-proof coating with flush coater
On non-woven fabrics, timely bedding HDPE geomembranes in rear 30s have been sprayed, it is ensured that the bonding of repair function portion and HDPE geomembranes
Property.
The present invention also provides above-mentioned with the application process repaired with the flexible barrier of vertical divider function, including following step
Suddenly:
1）Fluting：Along the position vertical channel of contaminated site periphery, bottom land is excavated to underground impermeable stratum, in the mistake of vertical channel
Mud off is adopted in journey；
2）It is described by being inserted in the slurry coat method of the vertical channel with reparation and the flexible barrier of vertical divider function
To bottom land in vertical channel, wherein repair function portion is near contaminated side；
3）Slip casting：Soil and bentonite are constituted by plasticity mud injection bottom land using pumping mode, cover to away from described with reparation
At the bottom 1-2m of the flexible barrier of vertical divider function；
4）Backfill：One of sand and clay or its mixture are backfilled in groove to remove slurry coat method.
It is further preferred that the preparation method of the repair function material is as follows：(1)、Fe(0)The preparation of/Al-SBA-15
Comprise the steps：, Al-SBA-15 mesoporous materials prepare.The deionization that P123 and Macrogol 4000 are dissolved into is taken first
In water, it is uniformly dissolved in 40 °C of stirred in water bath, then weighs aluminum nitrate and be added in above-mentioned solution and be uniformly dissolved, keeps steady
It is fixed constant, tetraethyl orthosilicate is added in above-mentioned solution, continue to stir 48h in 40 °C of water-bath, then product is turned
Reactor is moved to, at a certain temperature hydro-thermal reaction 24h, last sucking filtration, washing, drying, and with 2 °C/min's under 650 °C
Heating rate calcines 6h, obtains Al-SBA-15 mesoporous materials, wherein P123, Macrogol 4000, aluminum nitrate, tetraethyl orthosilicate
Mass ratio be：40:20:1:40.、Fe(0)It is prepared by/Al-SBA-15.Ferrous sulfate is fully dissolved into first 100mL ethanol
Aqueous solution, is subsequently adding Al-SBA-15 powder body ultrasonic disperse 5min in above-mentioned solution, after the completion of continue stir 20h, Ran Houzhuan
In moving to the there-necked flask of 500mL, it is passed through nitrogen 15min and removes dissolved oxygen；State then up in solution add Polyethylene Glycol-
4000,30min is stirred, pH value is adjusted to into 6 with 1M NaOH solutions；Finally, in the case where constantly whisking, it is added dropwise over separatory funnel
The aqueous solution of (1 drop/sec) 50mL potassium borohydrides, sustained response 40min again after dripping.Wherein ferrous sulfate, Al-SBA-15 powder
Body, PEG-4000, the mass ratio of potassium borohydride are 4:4:1:2.After reaction, thing to be mixed sinks to bottom of bottle centrifugation and sinks
Alternately washing 3 times of starch, the precipitate deionized deoxygenated water of gained and deoxidation dehydrated alcohol, dry in 70 °C in vacuum drying oven
It is dry cooling to obtain Fe(0)/ Al-SBA-15 powder body.
The present invention's has following good effect with the flexible barrier and preparation method repaired with vertical divider function：
(1), nano zero valence iron is loaded using mesoporous material Al-SBA-15, is limited using the nano pore of mesoporous material
Effect avoids the reunion of nano zero valence iron, reduces the surface energy and surface oxidation of nano zero valence iron, improves reactivity；In addition lead to
Powder body pelletize is crossed, the loss of nano zero valence iron can be effectively reduced.
(2), compound in HDPE geomembranes using repair function portion, structure has the flexible screen repaired with vertical divider function concurrently
Barrier, can preferably solve conventional vertical cut-pff wall and not have repair function, and permeable reactive wall does not possess vertical divider function
Problem.
(3), the present invention has the advantages of construction is simple, and good seepage-proof property, repair function are good.
Description of the drawings
Fig. 1 is a kind of with the cross-sectional profile schematic diagram repaired with the flexible barrier of vertical divider function of the present invention.
Fig. 2 is that a kind of of the present invention cuts open with reparation with the repair function cross section of the flexible barrier of vertical divider function
Face schematic diagram.
Specific embodiment
Below in conjunction with the accompanying drawings the invention will be further described with specific embodiment, so that those skilled in the art can be with
It is better understood from the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
With reference to shown in Fig. 1,2, a kind of flexible barrier with reparation with vertical divider function of the present invention, including：
Repair function portion 1, as depicted in figs. 1 and 2, it is folded in two-layer non-woven geotextile by two-layer non-woven geotextile 101,103
Between repair function material 102 constitute；
Vertical divider portion 3, as shown in figure 1, it is made up of HDPE geomembranes, its of repair function portion 1 is fixed in vertical divider portion 3
In a non-woven geotextile outside；
Wherein, repair function portion 1 is bondd with vertical divider portion 3 by rubberized asphalt non-cured water-proof coating 2, and bonding is applied
Work technique is spraying coating process.
Specifically, heretofore described non-woven geotextile is gram weight specification 300g/m2Or 600g/m2One kind or its combination,
One kind or its combination of polyester-type or polypropylene non-woven geotextile；
Specifically, heretofore described repair function material is by bentonite, attapulgite clay, the loaded mesoporous material (Fe of nano zero valence iron
(0)/Al-SBA-15) composition.Wherein the mass ratio of the loaded mesoporous material of bentonite, attapulgite clay, nano zero valence iron is 1 ~ 2:1~2:7,
Repairing effect depends mainly on the ratio of the loaded mesoporous material of meter Zero-valent Iron, and mass fraction is optimal when being 7, and number is repaiied very little
Multiple effect is too low, and number too greatly can not preferably pelletize.The number sum of bentonite and attapulgite clay is 3, by lamellar bentonite and
Needle-like attapulgite clay is compounded, and granule can be made to have preferable adhesion strength.（Preferably bentonite, attapulgite clay, nano zero valence iron load is situated between
The mass ratio of Porous materials is 2:1:7, now intercept and repair function is optimal）, swelling soil granularity is 200 mesh, attapulgite clay granularity
For 400 mesh, formed by powder body pelletize, grain diameter is 0.5-2mm.
Specifically, heretofore described geomembrane is the thick HDPE geomembranes of 2mm or 3mm.
Hereinafter, the present invention will be described for the concrete preparation method with reparation and the flexible barrier of vertical divider function：
(1), Fe is prepared(0)/ Al-SBA-15 powder body., first prepare Al-SBA-15 mesoporous materials.Weigh 50g P123 and
25g Macrogol 4000s are dissolved in the deionized water of 100mL, are uniformly dissolved in 40 °C of stirred in water bath, are then weighed
1.25g aluminum nitrates are added in above-mentioned solution and are uniformly dissolved, and holding stablizes constant, and the positive silicic acid second of 50g is added in above-mentioned solution
Ester, continues to stir 48h in 40 °C of water-bath, then product is transferred to into reactor, hydro-thermal reaction 24h at 110 DEG C,
Last sucking filtration, washing, drying, and 6h is calcined with the heating rate of 2 °C/min under 650 °C, obtain the mesoporous materials of Al-SBA-15
Material, wherein P123, Macrogol 4000, aluminum nitrate, the mass ratio of tetraethyl orthosilicate are：40:20:1:40., prepare Fe(0)/
Al-SBA-15.20g ferrous sulfate is fully dissolved into into 100mL ethanol waters, be subsequently adding 20g Al-SBA-15 powder body in
Ultrasonic disperse 5min in above-mentioned solution, after the completion of continue stir 20h, in being then transferred to the there-necked flask of 500mL, be passed through nitrogen
15min removes dissolved oxygen；Addition 5g PEG-4000s in solution are stated then up, stir 30min, will with 1M NaOH solutions
PH value is adjusted to 6；Finally, in the case where constantly whisking, the aqueous solution for being added dropwise over (1 drop/sec) 50mL potassium borohydrides with separatory funnel (contains
10g potassium borohydrides), sustained response 40min again after dripping.Wherein ferrous sulfate, Al-SBA-15 powder body, Polyethylene Glycol-
4000th, the mass ratio of potassium borohydride is 4:4:1:2.After reaction, thing to be mixed sinks to bottom of bottle centrifugation precipitate, gained it is heavy
Alternately washing 3 times of starch deionized deoxygenated water and deoxidation dehydrated alcohol, Fe is obtained in 70 °C in vacuum drying oven Drying and cooling(0)The load capacity of/Al-SBA-15 powder body, wherein nano zero valence iron is 18%.
(2) repair function material, is prepared.According to bentonite, attapulgite clay, the loaded mesoporous material (Fe of nano zero valence iron(0)/Al-
SBA-15 quality) is 1 ~ 2:1~2:7 ratio weighs each component, wherein swelling soil granularity be 200 mesh, attapulgite clay granularity be 400
Mesh.Each component is prepared into repair function material granule by powder granulator, grain diameter is 0.5-2mm.
(3) repair function portion, is prepared.The 101 laying repair function material 102, Ran Hou on ground floor non-woven geotextile
Its top re-lays second layer non-woven geotextile 103, and then acupuncture makes each layer fix together using the fiber of nonwoven layer.This
On bright ground floor non-woven geotextile 101 and second layer non-woven geotextile 103 be preferably the spun-bonded needle punched soil of high-strength thick denier polypropylene
Work cloth, its feature：Have the advantages that intensity height, acid-alkali-corrosive-resisting are strong, higher intensity can be kept in contaminated site.
(4), prepare and there is the flexible barrier repaired with vertical divider function.Repair function portion 1 is tiled first, then will
Rubberized asphalt non-cured water-proof coating 2 is poured into during material is filled and heated, when coating bulk temperature reaches sprayable state（150℃）,
Rubberized asphalt non-cured water-proof coating is equably sprayed on non-woven fabrics with special coating machine, has been sprayed and has been spread in time in rear 30s
Lid HDPE geomembranes 3, it is ensured that repair function portion is in the caking property of HDPE geomembranes.
Hereinafter, with reparation the present invention is entered with a concrete application process of the flexible barrier of vertical divider function with a kind of
Row explanation, application process comprises the steps：
1）Fluting：Along the position vertical channel of contaminated site periphery（The side of groove is Polluted area 10, and opposite side is uncontaminated area
Domain 20）, bottom land is excavated to underground impermeable stratum, using mud off during vertical channel；
2）HDPE geomembranes 3 and repair function portion 1 are carried out into spraying bonding with rubberized asphalt non-cured water-proof coating 2, obtains simultaneous
Tool repairs the flexible barrier with vertical divider function；
3）By step 2）Gained has the slurry coat method repaired with the flexible barrier of vertical divider function in the vertical channel concurrently
In be inserted in the vertical channel to bottom land, wherein repair function portion is near contaminated side；Barrier vertically hinders when installing
Every portion on the outside of Polluted area, inner side is repair function portion, and pollutant are contacted after being repaired with repair function portion, then by vertical
Blocking part is intercepted.
4）Slip casting：Soil and bentonite are constituted by plasticity mud 4 using pumping mode inject bottom land and cover to having away from described
Repair at the bottom 1-2m with the flexible barrier of vertical divider function；
5）Backfill：One of sand and clay or its mixture are backfilled in groove to remove slurry coat method.
It is of the invention compared with traditional method, the present invention nano zero valence iron is born using mesoporous material Al-SBA-15
Carry, using the nano pore restriction effect of mesoporous material the reunion of nano zero valence iron is avoided, reduce the surface energy of nano zero valence iron
And surface oxidation, improve reactivity；In addition by powder body pelletize, the loss of nano zero valence iron can effectively be reduced.Adopt simultaneously
Compound in HDPE geomembranes with repair function portion, structure has the flexible barrier repaired with vertical divider function concurrently, can be preferable
Solve conventional vertical cut-pff wall and there is no repair function, permeable reactive wall does not possess the problem of vertical divider function.Present invention tool
There is the advantages of construction is simple, and good seepage-proof property, repair function are good.
Embodiment described above is only the preferred embodiment lifted to absolutely prove the present invention, the protection model of the present invention
Enclose not limited to this.Equivalent substitute or conversion that those skilled in the art are made on the basis of the present invention, in the present invention
Protection domain within.Protection scope of the present invention is defined by claims.
Claims (10)
1. it is a kind of with the flexible barrier repaired with vertical divider function, it is characterised in that to include：
Repair function portion, it includes：Two-layer non-woven geotextile and the repair function material being located between the harmless geotextiles of two-layer
The bed of material；
Vertical divider portion, it is made up of HDPE geomembranes, and wherein the one of the repair function portion is fixed in the vertical divider portion
The outside of non-woven geotextile.
2. it is according to claim 1 with the flexible barrier repaired with vertical divider function, it is characterised in that the reparation
The thickness of function material layer is 3-5cm, and it is loaded mesoporous that the repair function material layer contains bentonite, attapulgite clay and nano zero valence iron
Material.
3. it is according to claim 2 with the flexible barrier repaired with vertical divider function, it is characterised in that the reparation
The mass ratio of the loaded mesoporous material of bentonite, attapulgite clay and nano zero valence iron is 1 ~ 2 in function material layer:1~2:7.
4. it is according to claim 2 with the flexible barrier repaired with vertical divider function, it is characterised in that nano zero-valence
The loaded mesoporous material of ferrum carries out loading the material Fe for obtaining for mesoporous material Al-SBA-15 to nano zero valence iron(0)/Al-SBA-
15, the wherein load capacity of nano zero valence iron is 10-20wt%.
5. according to claim 2 ~ 4 with repairing and the flexible barrier of vertical divider function, it is characterised in that it is described to repair
The preparation method of the repair function material of multiple function material layer comprises the steps：Take bentonite, attapulgite clay and nano zero valence iron to bear
Mesoporous material mixing is carried, pelletize is obtained final product.
6. it is according to claim 1 with the flexible barrier repaired with vertical divider function, it is characterised in that described vertical
Adhesive layer is provided between blocking part and the repair function portion, adhesive layer is adhesively fixed vertical divider portion in the repair function
The outside of a wherein non-woven geotextile in portion.
7. it is according to claim 6 with the flexible barrier repaired with vertical divider function, it is characterised in that the bonding
Layer is rubberized asphalt non-cured water-proof coating layer.
8. according to claim 1 with the flexible barrier repaired with vertical divider function, the vertical divider portion is 2mm
~ 3mm thick HDPE geomembranes.
9. described in claim 6 with the preparation method repaired with the flexible barrier of vertical divider function, it is characterised in that bag
Include following steps：
1）The preparation of repair function material：The loaded mesoporous material mixing of bentonite, attapulgite clay and nano zero valence iron is taken, pelletize is obtained final product；
2）The preparation in repair function portion：Repair function material is laid on ground floor non-woven geotextile and forms repair function material
Layer, then re-lays above it second layer non-woven geotextile, is then made by needling process using the fiber of non-woven geotextile
Obtain ground floor non-woven geotextile and second layer non-woven geotextile is fixed together, and ground floor non-woven geotextile and second layer nonwoven soil
Sandwiched repair function material layer in the middle of work cloth；
3）The fixation in vertical divider portion：Repair function portion is tiled first, then forms adhesive layer in its one side spraying adhesive,
Vertical divider portion is covered on adhesive layer with fixation.
10. described in any one of claim 1 ~ 9 with the application process repaired with the flexible barrier of vertical divider function, it is special
Levy and be, comprise the steps:
1）Fluting：Along the position vertical channel of contaminated site periphery, bottom land is excavated to underground impermeable stratum, in the mistake of vertical channel
Mud off is adopted in journey；
2）It is described by being inserted in the slurry coat method of the vertical channel with reparation and the flexible barrier of vertical divider function
To bottom land in vertical channel, wherein repair function portion is near contaminated side；
3）Slip casting：Soil and bentonite are constituted by plasticity mud injection bottom land using pumping mode, cover to away from described with reparation
At the bottom 1-2m of the flexible barrier of vertical divider function；
4）Backfill：One of sand and clay or its mixture are backfilled in groove to remove slurry coat method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611022133.4A CN106677226A (en) | 2016-11-21 | 2016-11-21 | Flexible barrier having restoration and vertical obstruction functions and preparation and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611022133.4A CN106677226A (en) | 2016-11-21 | 2016-11-21 | Flexible barrier having restoration and vertical obstruction functions and preparation and application thereof |
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| Publication Number | Publication Date |
|---|---|
| CN106677226A true CN106677226A (en) | 2017-05-17 |
Family
ID=58867615
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611022133.4A Pending CN106677226A (en) | 2016-11-21 | 2016-11-21 | Flexible barrier having restoration and vertical obstruction functions and preparation and application thereof |
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| CN107363092A (en) * | 2017-08-16 | 2017-11-21 | 武汉科技大学 | The repair system and its application method of a kind of combined contamination soil |
| CN107700509A (en) * | 2017-10-11 | 2018-02-16 | 苏州大学 | Compound underground anti-seepage isolation wall construction and construction method |
| CN108330953A (en) * | 2017-12-19 | 2018-07-27 | 苏州大学 | New type compound underground anti-seepage swelling cob wall and its construction method |
| CN109056764A (en) * | 2018-09-28 | 2018-12-21 | 北京高能时代环境技术股份有限公司 | Compound impervious wall and its construction method for soft clay area landfill yard environmental protection |
| CN109837928A (en) * | 2018-09-12 | 2019-06-04 | 中国环境科学研究院 | The application method of seepage proof curtain, guide seepage control system and seepage proof curtain |
| WO2024036966A1 (en) * | 2022-08-15 | 2024-02-22 | 中国矿业大学 | Control method for composite metal ions in solid waste landfill |
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| CN107700509A (en) * | 2017-10-11 | 2018-02-16 | 苏州大学 | Compound underground anti-seepage isolation wall construction and construction method |
| CN108330953A (en) * | 2017-12-19 | 2018-07-27 | 苏州大学 | New type compound underground anti-seepage swelling cob wall and its construction method |
| CN108330953B (en) * | 2017-12-19 | 2021-01-15 | 苏州大学 | Novel composite underground seepage-proofing bentonite wall and construction method thereof |
| CN109837928A (en) * | 2018-09-12 | 2019-06-04 | 中国环境科学研究院 | The application method of seepage proof curtain, guide seepage control system and seepage proof curtain |
| CN109056764A (en) * | 2018-09-28 | 2018-12-21 | 北京高能时代环境技术股份有限公司 | Compound impervious wall and its construction method for soft clay area landfill yard environmental protection |
| WO2020062340A1 (en) * | 2018-09-28 | 2020-04-02 | 北京高能时代环境技术股份有限公司 | Complex diaphragm wall for environmental protection of landfill in soft soil area, and construction method therefor |
| CN109056764B (en) * | 2018-09-28 | 2021-02-09 | 北京高能时代环境技术股份有限公司 | Composite impervious wall for environmental protection of landfill in soft soil area and construction method thereof |
| WO2024036966A1 (en) * | 2022-08-15 | 2024-02-22 | 中国矿业大学 | Control method for composite metal ions in solid waste landfill |
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Application publication date: 20170517 |