CN107503383A - A kind of Multi-layered composite gasket system antifouling for refuse landfill base impervious - Google Patents
A kind of Multi-layered composite gasket system antifouling for refuse landfill base impervious Download PDFInfo
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- CN107503383A CN107503383A CN201710966521.6A CN201710966521A CN107503383A CN 107503383 A CN107503383 A CN 107503383A CN 201710966521 A CN201710966521 A CN 201710966521A CN 107503383 A CN107503383 A CN 107503383A
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- geomembrane
- iron powder
- layered composite
- composite gasket
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- 239000002131 composite material Substances 0.000 title claims abstract description 21
- 230000003373 anti-fouling effect Effects 0.000 title claims abstract description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000004927 clay Substances 0.000 claims abstract description 32
- 239000010883 coal ash Substances 0.000 claims abstract description 27
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 6
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 6
- 239000004571 lime Substances 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 6
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 13
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 13
- 239000000292 calcium oxide Substances 0.000 claims description 13
- 239000010881 fly ash Substances 0.000 claims description 13
- 229920001903 high density polyethylene Polymers 0.000 claims description 9
- 239000004700 high-density polyethylene Substances 0.000 claims description 9
- 238000001354 calcination Methods 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 235000013312 flour Nutrition 0.000 claims description 3
- 230000035699 permeability Effects 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 2
- 238000005245 sintering Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 15
- 239000003344 environmental pollutant Substances 0.000 abstract description 14
- 231100000719 pollutant Toxicity 0.000 abstract description 14
- 230000007774 longterm Effects 0.000 abstract description 12
- 239000000356 contaminant Substances 0.000 abstract description 9
- 239000010813 municipal solid waste Substances 0.000 abstract description 8
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract description 7
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 7
- 239000012528 membrane Substances 0.000 abstract description 7
- 230000005012 migration Effects 0.000 abstract description 7
- 238000013508 migration Methods 0.000 abstract description 7
- 150000007524 organic acids Chemical class 0.000 abstract description 5
- 239000000470 constituent Substances 0.000 abstract description 2
- 239000002585 base Substances 0.000 description 8
- 230000004888 barrier function Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- E02D31/006—Sealing of existing landfills, e.g. using mining techniques
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/62204—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products using waste materials or refuse
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3208—Calcium oxide or oxide-forming salts thereof, e.g. lime
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Hydrology & Water Resources (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Paleontology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention relates to a kind of Multi-layered composite gasket system antifouling for refuse landfill base impervious, including：Basal layer, clay layer, modified coal ash layer, iron powder layer, lkd layer, the second geomembrane, leak detection layer, the first geomembrane, the Leachate site guide layer laid successively.Multi-layered composite gasket system geotechnique's membrane structure is survivable, Leachate site is avoided to miss, for the characteristics of content of material such as organic acid, heavy metal, ammonia nitrogen is high in garbage leachate, set gradually lime, iron powder and modified coal ash and remove its harmful constituent, reduce clay dosage, the effectively further migration of retardance pollutant, it is good to pollutant blockage effect, contaminant transportation can be prevented long-term effectively.
Description
Technical field
It is more particularly to a kind of antifouling for refuse landfill base impervious the present invention relates to environmental geotechnical technical field
Multi-layered composite gasket system.
Background technology
With the quickening of Development of China's Urbanization, China's municipal solid wastes yield also increases year by year；And sanitary landfills is because of it
The advantages such as the Environmental Safety that has, cost effective, have become the most important mode of Urban Rubbish Disposal.
Because China's municipal refuse is not classified effectively, the blended landfill such as industrial waste, building solid waste, house refuse,
Under the effect such as microorganism decomposition, rainfall and rainwash, the polluter contents such as organic matter, heavy metal, ammonia nitrogen are easily formed
High poisonous and harmful percolate.Once a leak occurs, immeasurable heavy damage will be caused to Soil Surrounding and water body.Pollution
The addressing and construction of thing refuse landfill, the especially antifouling barrier of base impervious are constructed, and are constantly subjected to pay close attention to extremely widely.
Seepage control measure of the prior art mainly lays HDPE (high density polyethylene (HDPE)) geomembranes and compacted cohesive soil pad,
Under the conditions of component of refuse complexity, differential settlement, puncture, drawing crack, aging damage easily occur for geomembrane, cause Leachate site to leak
Lose, and traditional clay liner retarded capability is limited, can not prevent the migration of pollutant long-term effectively, so as to underground environment
Safety produce greatly threaten.
The content of the invention
The invention provides a kind of for the antifouling Multi-layered composite gasket system of refuse landfill base impervious, solve or
Part, which solves geomembrane in the prior art and is easily destroyed, causes Leachate site to miss, and clay liner can not prevent dirt long-term effectively
The technical problem of thing migration is contaminated, it is good to realize pollutant blockage effect, prevents contaminant transportation, geotechnological membrane structure long-term effectively
The survivable technique effect for avoiding Leachate site from missing.
A kind of Multi-layered composite gasket system antifouling for refuse landfill base impervious provided by the invention includes：
Basal layer；
Clay layer, it is arranged on the basal layer；
Modified coal ash layer, it is arranged on the clay layer；
Iron powder layer, it is arranged on the modified coal ash layer；
Lkd layer, it is arranged in the iron powder layer；
Second geomembrane, it is arranged on the lkd layer；
Leak detection layer, it is arranged on second geomembrane；
First geomembrane, it is arranged on the leak detection layer；
Leachate site guide layer, it is arranged on first geomembrane.
Preferably, the clay layer is formed by the compacting of clean clay；
The saturation permeability coefficient of the clay layer is less than 1 × 10-7Cm/s, thickness are not less than 25cm.
Preferably, the preparing raw material of the modified coal ash layer includes：By percentage to the quality, calcium oxide 18%~
22% and flyash 78%~82%；
Calcination obtains sinter in 750~850 DEG C of environment after the calcium oxide is mixed with the flyash, by described in
Ground after sinter cooling and be compacted that the modified coal ash layer is made.
Preferably, the preparing raw material of the modified coal ash layer includes：By percentage to the quality, calcium oxide 20% and powder
Coal ash 80%；
After the calcium oxide is mixed with the flyash, calcination 1 hour in 800 DEG C of Muffle furnaces, the sintering is obtained
Thing.
Preferably, the iron powder layer is compacted be made after uniformly mixing with flour sand by iron powder.
Preferably, the iron powder is the zeroth order iron powder of 100~200 mesh；
By percentage to the quality, the content of the iron powder is 5%~15%.
Preferably, the lkd layer is compacted be made after being mixed evenly with water by lime.
Preferably, the material of first geomembrane and second geomembrane is high density polyethylene (HDPE).
One or more technical schemes provided herein, have at least the following technical effects or advantages：
As a result of laying clay layer, modified coal ash layer, iron powder layer, lkd layer, second successively on basal layer
Geomembrane, leak detection layer, the first geomembrane, Leachate site guide layer, double-deck geotechnological membrane structure have Multi-layered composite gasket system
Standby two-layer barrier guarantee, strengthens anti-seepage effect, and leak detection layer can find the unexpected breakage of wherein one layer geomembrane in time, avoid
Pollutant is missed and threatens underground environment；Modified coal ash layer, iron powder layer and lkd layer, which can be removed effectively in garbage leachate, to be had
Machine acid, heavy metal, the harmful substance of ammonia nitrogen high content, ensure that the system can block the migration of pollutant long-term effectively, strengthen
Anti-fouling effect, while clay dosage can also be reduced.So, efficiently solve geomembrane in the prior art and easily cause Leachate site leakage
Lose, clay liner can not prevent the technical problem of contaminant transportation long-term effectively, and it is survivable to realize geotechnological membrane structure, keeps away
Exempt from Leachate site leakage, pollutant blockage effect is good, prevents the technique effect of contaminant transportation long-term effectively.
Brief description of the drawings
Fig. 1 is the Multi-layered composite gasket system antifouling for refuse landfill base impervious provided in an embodiment of the present invention
Structural representation.
(part that each label represents in diagram is followed successively by：1 Leachate site guide layer, 2 first geomembranes, 3 leak detection layers, 4
Second geomembrane, 5 lkd layers, 6 iron powder layers, 7 modified coal ash layers, 8 clay layers, 9 basal layers)
Embodiment
The embodiment of the present application provides a kind of Multi-layered composite gasket system antifouling for refuse landfill base impervious, solution
Determine or part solves geomembrane in the prior art and easily causes Leachate site leakage, clay liner can not prevent long-term effectively
The technical problem of contaminant transportation, by laying clay layer, modified coal ash layer, iron powder layer, lime successively on basal layer
Layer, the second geomembrane, leak detection layer, the first geomembrane, Leachate site guide layer；It is good to realize pollutant blockage effect, for a long time
Effectively prevent contaminant transportation, the survivable technique effect for avoiding Leachate site from missing of geotechnological membrane structure.
Referring to accompanying drawing 1, a kind of composite anti-penetrating system for landfill yard high gradient slope provided by the invention, including：Basis
Layer 9, clay layer 8, modified coal ash layer 7, iron powder layer 6, lkd layer 5, the second geomembrane 4, leak detection layer 3, the first geomembrane
2nd, Leachate site guide layer 1；Clay layer 8 is arranged on basal layer 9；Modified coal ash layer 7 is arranged on clay layer 8；Iron powder layer 6 is set
Put on modified coal ash layer 7；Lkd layer 5 is arranged in iron powder layer 6；Second geomembrane 4 is arranged on lkd layer 5；Seepage is examined
Layer 3 is surveyed to be arranged on the second geomembrane 4；First geomembrane 2 is arranged on leak detection layer 3；Leachate site guide layer 1 is arranged on
On one geomembrane 2.
Wherein, double-deck geotechnological membrane structure makes Multi-layered composite gasket system possess two-layer barrier guarantee, strengthens anti-seepage effect, oozes
Leak detection layer 3 can find the unexpected breakage of wherein one layer geomembrane in time, avoid pollutant from missing and threaten underground environment；It is modified
Flyash Layer 7, iron powder layer 6 and lkd layer 5, which can effectively remove organic acid in garbage leachate, heavy metal, ammonia nitrogen high content, to be had
Evil material, ensure that the system can block the migration of pollutant long-term effectively, strengthen anti-fouling effect, while clay use can also be reduced
Amount.
Further, clay layer 8 is formed by the compacting of clean clay；The saturation permeability coefficient of clay layer 8 is less than 1 × 10- 7Cm/s, thickness are not less than 25cm.The spaced apart base layer 9 of clay layer 8 and the stain-proofing layer on top, effective block contaminants permeate the ground
Environment.
Further, the preparing raw material of modified coal ash layer 7 includes：By percentage to the quality, calcium oxide 18%~22%
And flyash 78%~82%；Calcination obtains sinter in 750~850 DEG C of environment after calcium oxide is mixed with flyash, will
Ground after sinter cooling and be compacted that modified coal ash layer 7 is made.As a kind of preferred embodiment, modified coal ash layer 7
Preparing raw material includes：By percentage to the quality, calcium oxide 20% and flyash 80%；After calcium oxide is mixed with flyash,
Calcination 1 hour in 800 DEG C of Muffle furnaces, obtain sinter.Flyash in modified coal ash layer 7 via calcium oxide modification by fire,
Adsorptivity greatly enhances, and can efficiently remove the ammonia nitrogen substances in Leachate site.
Further, compacting is made after iron powder layer 6 is uniformly mixed by iron powder with flour sand.Iron powder is 100~200 purposes zero
Valency iron powder；By percentage to the quality, the content of iron powder is 5%~15%.The zeroth order iron powder of iron powder layer 6 has reduction, energy
Remove the heavy metal and oxidizing substance in Leachate site.
Further, compacting is made after lkd layer 5 is mixed evenly by lime with appropriate water, and lkd layer 5 is in alkali
Property, the organic acid composition in Leachate site can be effectively removed, and create alkaline environment.
Further, the material of the first geomembrane 2 and the second geomembrane 4 is high density polyethylene (HDPE).
One or more technical schemes provided herein, have at least the following technical effects or advantages：
As a result of laid successively on basal layer 9 clay layer 8, modified coal ash layer 7, iron powder layer 6, lkd layer 5,
Second geomembrane 4, leak detection layer 3, the first geomembrane 2, Leachate site guide layer 1, double-deck geotechnological membrane structure serve as a contrast MULTILAYER COMPOSITE
Mattress system possesses two-layer barrier guarantee, strengthens anti-seepage effect, and leak detection layer 3 can find the accident of wherein one layer geomembrane in time
Breakage, pollutant is avoided to miss and threaten underground environment；Modified coal ash layer 7, iron powder layer 6 and lkd layer 5 can effectively remove rubbish
Organic acid, heavy metal, the harmful substance of ammonia nitrogen high content in rubbish Leachate site, ensure that the system can block pollutant long-term effectively
Migration, strengthen anti-fouling effect, while clay dosage can also be reduced.So, it is easy to efficiently solve geomembrane in the prior art
Leachate site is caused to miss, clay liner can not prevent the technical problem of contaminant transportation long-term effectively, realize geomembrane knot
Structure is survivable, avoids Leachate site from missing, for the high spy of the content of material such as organic acid, heavy metal, ammonia nitrogen in garbage leachate
Point, set gradually lime, iron powder and modified coal ash and remove its harmful constituent, reduce clay dosage, effectively block pollutant
Further migration, pollutant blockage effect is good, prevents the technique effect of contaminant transportation long-term effectively.
Above-described embodiment, the purpose of the present invention, technical scheme and beneficial effect are carried out further
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not limited to this hair
It is bright, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., it should be included in the present invention
Protection domain within.
Claims (8)
- A kind of 1. Multi-layered composite gasket system antifouling for refuse landfill base impervious, it is characterised in that including：Basal layer；Clay layer, it is arranged on the basal layer；Modified coal ash layer, it is arranged on the clay layer；Iron powder layer, it is arranged on the modified coal ash layer；Lkd layer, it is arranged in the iron powder layer；Second geomembrane, it is arranged on the lkd layer；Leak detection layer, it is arranged on second geomembrane；First geomembrane, it is arranged on the leak detection layer；Leachate site guide layer, it is arranged on first geomembrane.
- 2. the Multi-layered composite gasket system antifouling for refuse landfill base impervious, its feature exist as claimed in claim 1 In,The clay layer is formed by the compacting of clean clay；The saturation permeability coefficient of the clay layer is less than 1 × 10-7Cm/s, thickness are not less than 25cm.
- 3. the Multi-layered composite gasket system antifouling for refuse landfill base impervious, its feature exist as claimed in claim 1 In,The preparing raw material of the modified coal ash layer includes：By percentage to the quality, calcium oxide 18%~22% and flyash 78%~82%；Calcination obtains sinter in 750~850 DEG C of environment after the calcium oxide is mixed with the flyash, by the sintering Ground after thing cooling and be compacted that the modified coal ash layer is made.
- 4. the Multi-layered composite gasket system antifouling for refuse landfill base impervious, its feature exist as claimed in claim 3 In,The preparing raw material of the modified coal ash layer includes：By percentage to the quality, calcium oxide 20% and flyash 80%；After the calcium oxide is mixed with the flyash, calcination 1 hour in 800 DEG C of Muffle furnaces, the sinter is obtained.
- 5. the Multi-layered composite gasket system antifouling for refuse landfill base impervious, its feature exist as claimed in claim 1 In,The iron powder layer is compacted be made after uniformly mixing with flour sand by iron powder.
- 6. the Multi-layered composite gasket system antifouling for refuse landfill base impervious, its feature exist as claimed in claim 5 In,The iron powder is the zeroth order iron powder of 100~200 mesh；By percentage to the quality, the content of the iron powder is 5%~15%.
- 7. the Multi-layered composite gasket system antifouling for refuse landfill base impervious, its feature exist as claimed in claim 1 In,The lkd layer is compacted be made after being mixed evenly with water by lime.
- 8. the Multi-layered composite gasket system antifouling for refuse landfill base impervious, its feature exist as claimed in claim 1 In,The material of first geomembrane and second geomembrane is high density polyethylene (HDPE).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710966521.6A CN107503383A (en) | 2017-10-17 | 2017-10-17 | A kind of Multi-layered composite gasket system antifouling for refuse landfill base impervious |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710966521.6A CN107503383A (en) | 2017-10-17 | 2017-10-17 | A kind of Multi-layered composite gasket system antifouling for refuse landfill base impervious |
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| CN107503383A true CN107503383A (en) | 2017-12-22 |
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Cited By (6)
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| CN109047322A (en) * | 2018-09-10 | 2018-12-21 | 缙云县智禾环保科技有限公司 | A kind of soil remediation method |
| CN109396152A (en) * | 2018-12-14 | 2019-03-01 | 北京高能时代环境技术股份有限公司 | Processing unit and method suitable for saliferous industrial waste |
| CN109914486A (en) * | 2019-04-03 | 2019-06-21 | 天津市水利科学研究院 | A kind of ventilation anti-seepage blanket of locking fixed structure and preparation method thereof and construction method |
| CN111570461A (en) * | 2020-05-29 | 2020-08-25 | 中国环境科学研究院 | Refuse landfill covering mode |
| CN114809105A (en) * | 2022-03-03 | 2022-07-29 | 北京中岩大地环境科技有限公司 | In-situ horizontal multi-layer barrier construction method |
| CN115492167A (en) * | 2022-10-22 | 2022-12-20 | 中国煤炭地质总局水文地质工程地质环境地质勘查院 | Continuous anti-seepage method for pollution control of tailing pond |
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| CN109914486A (en) * | 2019-04-03 | 2019-06-21 | 天津市水利科学研究院 | A kind of ventilation anti-seepage blanket of locking fixed structure and preparation method thereof and construction method |
| CN109914486B (en) * | 2019-04-03 | 2023-12-26 | 天津市水利科学研究院 | Breathable impermeable blanket with locking and fixing structure and preparation method and construction method thereof |
| CN111570461A (en) * | 2020-05-29 | 2020-08-25 | 中国环境科学研究院 | Refuse landfill covering mode |
| CN111570461B (en) * | 2020-05-29 | 2021-07-23 | 中国环境科学研究院 | Refuse landfill covering mode |
| CN114809105A (en) * | 2022-03-03 | 2022-07-29 | 北京中岩大地环境科技有限公司 | In-situ horizontal multi-layer barrier construction method |
| CN115492167A (en) * | 2022-10-22 | 2022-12-20 | 中国煤炭地质总局水文地质工程地质环境地质勘查院 | Continuous anti-seepage method for pollution control of tailing pond |
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