CN206279563U - A kind of heavy metal pollution clayed soil underground landfill heap body based on rigid structure - Google Patents
A kind of heavy metal pollution clayed soil underground landfill heap body based on rigid structure Download PDFInfo
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- CN206279563U CN206279563U CN201621418781.7U CN201621418781U CN206279563U CN 206279563 U CN206279563 U CN 206279563U CN 201621418781 U CN201621418781 U CN 201621418781U CN 206279563 U CN206279563 U CN 206279563U
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Abstract
The utility model is related to a kind of heavy metal pollution clayed soil underground landfill heap body based on rigid structure, including：The bottom of heap body, side wall and top section；Base section is followed successively by from down to up：Composite bentonite protective layer, the first density polyethylene film with high, the first geotextiles, boulder bed, the second geotextiles, the first heavy metal adsorption oxidant layer and heavy-metal contaminated soil under impervious reinforced concrete floor, percolate integrate draining layer, film；Sidewall sections are followed successively by from outside to inside：Impervious armored concrete side wall, the 3rd geotextiles, the second density polyethylene film with high, the 4th geotextiles, the second heavy metal adsorption oxidant layer and heavy-metal contaminated soil；Top section is followed successively by from top to bottom：Breathing waterproof film, the 5th geotextiles, triple-heavy metal adsorbent layer and heavy-metal contaminated soil.The Reactor structure can dispose heavy-metal contaminated soil with inexpensive mode dystopy, and can effectively control Heavy Metals in Contaminated Soils to the risk migrated in surrounding environment.
Description
Technical field
The utility model belongs to field of environmental improvement, it particularly relates to a kind of heavy metal pollution based on rigid structure
Clayed soil underground fills heap body.
Background technology
Mankind's industrial and agricultural production, life are the main causes for causing heavy metal pollution of soil, and the heavy metal in soil is main
Unreasonable administration, house refuse from production of mining industry activity, sewage irrigation, agricultural chemicals and chemical fertilizer etc..In the political affairs of national correlation
Plan promote under, heavy-metal contaminated soil repair tentatively carry out, recovery technique mainly including Soil leaching, curing/stabilizing,
Thermal desorption, phytoremediation, microorganism remediation, electro reclamation etc., curing/stabilizing technology are the wider recovery techniques of current application
One of.
Curing/stabilizing is directed to add a certain class or a few class curing/stabilizing medicaments in heavy-metal contaminated soil, passes through
Physical/chemical process prevents or reduces the technical method of toxic heavy metal release in soil.But due to curing/stabilizing technology simultaneously
Heavy metal is not removed at all from soil, it is therefore desirable to carry out long-term monitoring to prevent heavy metal from activating again and to surrounding
Environment, especially to diffusion mobility in underground water；And because curing/stabilizing technology needs to be carried out to addition medicament in soil
Stir and evenly mix and can just make medicament and reacted with heavy metal, the effect of mixing directly affects pollution amelioration effect.Therefore, be not suitable for
Heavy metal polluted soil is the situation of clay.Additionally, the heavy-metal contaminated soil larger to treatment scale, curing/stabilizing treatment
Substantial amounts of chemical agent need to be expended, financial cost is higher.
Utility model content
For existing curing/stabilizing technology and the deficiency of sticky contaminated soil remediation technology, the utility model provides one
Plant the underground landfill heap body construction structure of the dystopy disposal heavy metal pollution clayed soil based on rigid structure.When contaminated soil is filled out
When burying a site geological conditions and can not meet the requirement of landfill yard basal layer, by setting impervious reinforced concrete floor, strengthen
Horizontal leakage preventing system Construction；With reference to the heavy metal adsorption oxidant layer that bottom and side use, soil weight is at utmost avoided or reduced
Metal is migrated in vitro to heap, and heavy metal pollution clayed soil is disposed in showering so as to be reached with relatively low processing cost, with
And to the purpose of contaminated soil risk management and control.
In order to solve the above technical problems, the technical solution of the utility model is：
A kind of heavy metal pollution clayed soil underground landfill heap body based on rigid structure, including：The bottom of heap body, side wall
And top section；
Base section is followed successively by from down to up：It is compound swollen under impervious reinforced concrete floor, percolate integrate draining layer, film
Profit protective soil layer, the first density polyethylene film with high, the first geotextiles, boulder bed, the second geotextiles, the first heavy metal adsorption oxidant layer
And heavy-metal contaminated soil；
Sidewall sections are followed successively by from outside to inside：Impervious armored concrete side wall, the 3rd geotextiles, the second high density polyethylene (HDPE)
Film, the 4th geotextiles, the second heavy metal adsorption oxidant layer and heavy-metal contaminated soil；
Top section is followed successively by from top to bottom：Breathing waterproof film, the 5th geotextiles, triple-heavy metal adsorbent layer and a huge sum of money
Category contaminated soil.
Preferably, the heap body bottom, side wall and top section set first to triple-heavy metal adsorbent layer by inhaling
The active clayey mineral material of attached soil percolation dissolution or the heavy metal for volatilizing is constituted.
Preferably, the breathing waterproof film at the top of the heap body for prevent or reduces outside moisture enter contaminated soil heap body but
The material for being provided simultaneously with gas permeability is made.
Preferably, the impervious reinforced concrete floor is made of foamed concrete, and performance meets infiltration coefficient≤1.0
×10-6cm/s。
Preferably, the impervious armored concrete side wall is made of foamed concrete, and performance meets infiltration coefficient≤1.0
×10-6cm/s。
Preferably, the heap body section is trapezoidal or rectangle.
Preferably, it is described landfill heap body bottom periphery be provided with groove, for collect and guide heap body in seepage it is a small amount of
Water.
After employing above-mentioned technical proposal, effect of the present utility model is：The underground of described heavy-metal contaminated soil is filled out
Bury the top of heap body, side wall, bottom and be provided with heavy metal adsorption oxidant layer, can fully absorb/fixed-contamination soil in may
Seepage, the heavy metal for volatilizing, it is to avoid heavy metal is migrated in surrounding environment；It is advantageous that avoiding the heavy-metal contaminated soil from being
During clay, the high construction cost for making heavy metal be expended with stabilization agent blending process by way of stirring and evenly mixing, while
The environmental risk of heavy-metal contaminated soil can effectively be controlled.Permeable waterproof material at the top of heap body can substantially reduce outside moisture
Into heap body, while the gas for allowing heap body to produce is derived in time, the heap running body life-span is ensured.Side wall uses Novel foaming coagulation
Soil can reach the structural strength equal with normal concrete with less concrete amount, and with hydrophobicity is strong, construction speed
The advantages such as degree is fast, light weight, construction costs can be at utmost reduced on the premise of construction quality is ensured.Percolate integrate draining system
The timely derivation of heap body moisture is can ensure that, heap body performance, Stability Analysis of Structures is ensured.
Brief description of the drawings
Fig. 1 is the structural representation of the heavy metal pollution clayed soil underground landfill heap body based on rigid structure in embodiment
Figure.
Reference：
Composite bentonite protective layer, 4- first under the impervious reinforced concrete floors of 1-, 2- percolates integrate draining layer, 3- films
Density polyethylene film with high, the geotextiles of 5- first, 6- boulder beds, the geotextiles of 7- second, the first heavy metal adsorptions of 8- oxidant layer, 9- are with much money
Category contaminated soil, the impervious armored concrete side walls of 10-, the geotextiles of 11- the 3rd, the density polyethylene film with high of 12- second, 13- the 4th
Geotextiles, the second heavy metal adsorptions of 14- oxidant layer, 15- triple-heavy metals adsorbent layer, the geotextiles of 16- the 5th, 17- air permeable waterproofs
Film.
Specific embodiment
This is described in further detail with new with reference to specific embodiment, is not limited to this practicality new
The protection domain of type.
As shown in Figure 1, the heavy metal pollution clayed soil underground based on rigid structure provided by the utility model is filled out
Bury top of the heap body including heap body, side wall and bottom.
Heap shape can be selected according to the actual conditions of Land_use change, and heap body section can be trapezoidal, rectangle etc..
Heap body bottom, side wall are respectively provided with certain antiseepage function, based on preferred scheme, be increased on the basis of conventional leakage preventing structure respectively
Heavy metal adsorption oxidant layer.Side wall is using the impervious armored concrete impervious barrier for possessing certain infiltration coefficient.Heap body top is from anti-
Water is breathed freely membrane material, and heap body bottom is formed around groove.
The impervious barrier of the heap body bottom includes being layed in the percolate integrate draining layer on impervious reinforced concrete floor,
The composite bentonite protective layer under film is laid on percolate integrate draining layer, the composite bentonite protective layer laying first under film is high
Density polyethylene film, lays the first geotextiles on the first density polyethylene film with high, be boulder bed, cobble on the first geotextiles
The second geotextiles are laid on layer, the first heavy metal adsorption oxidant layer, the first heavy metal adsorption oxidant layer are laid on the second geotextiles
On directly stack heavy-metal contaminated soil.The first heavy metal absorbent thickness degree according to Heavy Metals in Soil Contaminated concentration and
Performance of the adsorbent determines after carrying out comprehensive analysis.
The impervious barrier of the heap body sidewall includes impervious armored concrete side wall, impervious armored concrete inside sidewalls laying
3rd geotextiles, the 3rd geotextiles inner side is the second density polyethylene film with high, the second density polyethylene film with high inner side laying the 4th
Weight is directly stacked in geotextiles, the second heavy metal adsorption oxidant layer of the 4th geotextiles inner side laying, the second heavy metal adsorption oxidant layer inner side
Metallic pollution soil.Preferably, impervious armored concrete side wall is a kind of using preventing that new-type foamed concrete builds up
Infiltration layer, the new-type foamed concrete has the advantages that to save material, light weight, and can meet infiltration coefficient≤1.0 × 10-6cm/s
Requirement；The second heavy metal absorbent thickness degree is carried out according to Heavy Metals in Soil Contaminated concentration and performance of the adsorbent
Determine after comprehensive analysis.
It is breathing waterproof film that heap body top impervious barrier is most gone up, and the 5th geotextiles are equipped with breathing waterproof film, the
Triple-heavy metal adsorbent layer is laid under five geotextiles, heavy metal polluted soil is directly stored up under triple-heavy metal adsorbent layer
Earth.The breathing waterproof film can prevent or substantially reduce the outside moistures such as rainfall to enter contaminated soil heap body but while have for one kind
The material of standby gas permeability；Triple-heavy metal adsorbent layer thickness is equally according to Heavy Metals in Soil Contaminated concentration and adsorbent
Determine after comprehensive analysis can be carried out.
The Reactor structure can dispose heavy-metal contaminated soil with inexpensive mode dystopy, and can effectively control Polluted Soil
Heavy metal is to the risk migrated in surrounding environment in earth；And can reduce contaminated soil by selecting suitable site to carry out landfill
Store up to appropriation of land, it is adaptable to the contaminated soil disposal options such as the treatment of original place dystopy, dystopy treatment.Example described above is only
It is the description to the utility model preferred embodiment, not as the restriction to the utility model scope；Except suitable for heavy metal
The security landfill of contaminated soil, the utility model scope covers the non-sticky soil containing heavy metal simultaneously, and containing heavy metal
The landfill of other hazardous solid wastes, such as slag, industrial residue.
Specific embodiment of the utility model is the foregoing is only, is not used to limit the utility model, it is all in this practicality
Any modification, equivalent and improvement made within new spirit and principle etc., should be included in guarantor of the present utility model
Within the scope of shield.
Claims (7)
1. a kind of heavy metal pollution clayed soil underground based on rigid structure fills heap body, it is characterised in that including：Heap body
Bottom, side wall and top section；
Base section is followed successively by from down to up：Composite bentonite under impervious reinforced concrete floor, percolate integrate draining layer, film
Protective layer, the first density polyethylene film with high, the first geotextiles, boulder bed, the second geotextiles, the first heavy metal adsorption oxidant layer and weight
Metallic pollution soil；
Sidewall sections are followed successively by from outside to inside：Impervious armored concrete side wall, the 3rd geotextiles, the second density polyethylene film with high,
4th geotextiles, the second heavy metal adsorption oxidant layer and heavy-metal contaminated soil；
Top section is followed successively by from top to bottom：Breathing waterproof film, the 5th geotextiles, triple-heavy metal adsorbent layer and heavy metal-polluted
Dye soil.
2. the heavy metal pollution clayed soil underground based on rigid structure according to claim 1 fills heap body, its feature
Be, the heap body bottom, side wall and top section set first to triple-heavy metal adsorbent layer by absorption soil percolation
The active clayey mineral material of dissolution or the heavy metal for volatilizing is constituted.
3. the heavy metal pollution clayed soil underground based on rigid structure according to claim 1 and 2 fills heap body, and it is special
Levy and be, the breathing waterproof film of the heap body top section enters contaminated soil heap body but simultaneously to prevent or reducing outside moisture
The material for possessing gas permeability is made.
4. the heavy metal pollution clayed soil underground based on rigid structure according to claim 3 fills heap body, its feature
It is that the impervious reinforced concrete floor is made of foamed concrete, and performance meets infiltration coefficient≤1.0 × 10-6cm/s。
5. the heavy metal pollution clayed soil underground based on rigid structure according to claim 4 fills heap body, its feature
It is that the impervious armored concrete side wall is made of foamed concrete, and performance meets infiltration coefficient≤1.0 × 10-6cm/s。
6. the heavy metal pollution clayed soil underground based on rigid structure fills heap body according to claim 1 or 5, and it is special
Levy and be, the heap body section is trapezoidal or rectangle.
7. the heavy metal pollution clayed soil underground based on rigid structure according to claim 6 fills heap body, its feature
It is that the heap body bottom is formed around groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621418781.7U CN206279563U (en) | 2016-12-22 | 2016-12-22 | A kind of heavy metal pollution clayed soil underground landfill heap body based on rigid structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621418781.7U CN206279563U (en) | 2016-12-22 | 2016-12-22 | A kind of heavy metal pollution clayed soil underground landfill heap body based on rigid structure |
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|---|---|
| CN206279563U true CN206279563U (en) | 2017-06-27 |
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ID=59074077
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109024702A (en) * | 2018-09-30 | 2018-12-18 | 广东建科建设咨询有限公司 | Construction method and structure is isolated in contaminated soil |
| CN113546957A (en) * | 2021-07-19 | 2021-10-26 | 西南科技大学 | Trinity treatment structure applied to harmful arsenic slag pile and construction method thereof |
| CN115365282A (en) * | 2022-08-31 | 2022-11-22 | 银河航天(北京)网络技术有限公司 | Separate anti-seepage device for purifying agricultural contaminated soil |
-
2016
- 2016-12-22 CN CN201621418781.7U patent/CN206279563U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109024702A (en) * | 2018-09-30 | 2018-12-18 | 广东建科建设咨询有限公司 | Construction method and structure is isolated in contaminated soil |
| CN113546957A (en) * | 2021-07-19 | 2021-10-26 | 西南科技大学 | Trinity treatment structure applied to harmful arsenic slag pile and construction method thereof |
| CN115365282A (en) * | 2022-08-31 | 2022-11-22 | 银河航天(北京)网络技术有限公司 | Separate anti-seepage device for purifying agricultural contaminated soil |
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