CN207615357U - A kind of heavy-metal contaminated soil prosthetic device - Google Patents
A kind of heavy-metal contaminated soil prosthetic device Download PDFInfo
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- CN207615357U CN207615357U CN201721398495.3U CN201721398495U CN207615357U CN 207615357 U CN207615357 U CN 207615357U CN 201721398495 U CN201721398495 U CN 201721398495U CN 207615357 U CN207615357 U CN 207615357U
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- leachates
- contaminated soil
- soil
- eluent
- isolated area
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Abstract
The utility model is related to technical field of soil remediation,Provide a kind of heavy-metal contaminated soil prosthetic device,Including baffling device,Elution device,Leachates processing unit and rehabilitation plant,Heavy-metal contaminated soil is isolated in situ by baffling device,And utilize spray equipment,Leachates processing unit carries out preliminary treatment and purification to contaminated soil,It is contaminated soil without shifting,By planting rehabilitation plant, to treated, contaminated soil carries out restoration of the ecosystem again,It is purified with further reparation,Dual reparation makes the repairing efficiency of contaminated soil greatly shorten,And preferable landscape effect is reached while repairing,Has the function of duration reparation to contaminated soil,It is short to reach repairing efficiency,Rehabilitation cost is low,The high requirement of effect persistence,It is particularly suitable for the use of Urban Heavy Metal Pollution place,Realization is to the purpose that municipal pollution place is efficient and quickly repairs.
Description
Technical field
The utility model is related to technical field of soil remediation more particularly to a kind of heavy-metal contaminated soil prosthetic devices.
Background technology
With society and expanding economy, requirement of the people to environment is higher and higher, and has put into effect accordingly about a huge sum of money
Belong to relevant laws and regulations, the specification of contaminated soil remediation, the heavy-metal contaminated soil reparation market demand is increasing, is wanted to reparation
It asks other than reparation is up to standard, it is also higher and higher to requirements such as repairing efficiency, rehabilitation cost, effect persistences.It usually utilizes and repaiies
Apparatus for coating to contaminated soil manually repair or carries out restoration of the ecosystem to heavy-metal contaminated soil using phytoremediation technology,
In the prior art, it carries out soil remediation using prosthetic device to usually require soil being transferred in prosthetic device, just by heavy metal
Ingredient is detached, and realizes the reparation of soil, but the process is complex, and effect persistence is low；Phytoremediation technology is
Corresponding plant is planted in the heavy-metal contaminated soil of corresponding region to repair it, phytoremediation technology is as a kind of life
State, environmental protection, effective technology, because its is at low cost, and are widely used, but because its repairing efficiency is long, be mainly used in agriculture at present
Field is repaired in recovery of ecologic environment in a mine, with carrying forward vigorously for Modern ecological city construction, needs to build more contaminated sites
The afforested areas such as greenery patches, park are configured to, this requirement to landscape effect is also higher, and the reparation in municipal pollution place often needs
It efficiently to quickly complete, therefore existing phytoremediation technology cannot be satisfied the reparation demand in municipal pollution place, shortening is repaiied
Multiple period, raising remediation efficiency become most important.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of heavy metal pollutions can carrying out in situ, efficient
Soil restoring device.
Technical solution is used by the utility model solves above-mentioned technical problem：
Provide a kind of prosthetic device of heavy-metal contaminated soil, including baffling device, elution device, leachates processing dress
It sets and rehabilitation plant, the baffling device includes barrier wall, the barrier wall surrounds about one connection, the isolation of all round closure
Area, the elution device for preparing eluent and eluent being sprayed to the isolated area, use by the leachates processing unit
In the leachates that collection eluent flows through the isolated area and is formed, the rehabilitation plant is planted in the isolated area.
As an improvement of the above technical solution, the elution device includes that eluent prepares pond and spray equipment, the leaching
Lotion prepares pond and prepares pond for preparing and holding eluent, the spray equipment with the eluent by pipeline and be connected to.
As a further improvement of the above technical scheme, the spray equipment includes several nozzles, and the nozzle setting exists
Above the isolated area.
As a further improvement of the above technical scheme, the leachates processing unit includes at draw-out device and leachates
Pond is managed, the draw-out device is connected to the isolated area, for extracting the leachates in the isolated area to the leachates
In processing pond, the leachates processing pond for collecting and purifying leachates, with the eluent match by the leachates processing pond
Pond processed is connected.
As a further improvement of the above technical scheme, the leachates processing unit further includes extraction well, the extracting
Well is arranged in the soil in the isolated area and extends along depth of soil direction, and the draw-out device connects with the extraction well
It is logical.
As a further improvement of the above technical scheme, the barrier wall is reinforced concrete structure wall, the barrier wall
Thickness be 10~30cm.
The utility model has the beneficial effects that：
The utility model heavy-metal contaminated soil prosthetic device by baffling device by heavy-metal contaminated soil in situ into
Row isolation, and preliminary treatment and purification are carried out to contaminated soil using spray equipment, leachates processing unit, it is dirty without shifting
Soil is contaminated, then contaminated soil carries out restoration of the ecosystem to treated by planting rehabilitation plant, is purified with further reparation, it is double
Reconditioning makes the repairing efficiency of contaminated soil greatly shorten again, and has reached preferable landscape effect while repairing, right
Contaminated soil has the function of duration reparation, reaches the requirement that repairing efficiency is short, rehabilitation cost is low, effect persistence is high, especially
It is suitable for the use of Urban Heavy Metal Pollution place, realization is to the purpose that municipal pollution place is efficient and quickly repairs.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used briefly describes：
Fig. 1 is the structural schematic diagram of the utility model heavy-metal contaminated soil prosthetic device one embodiment.
Specific implementation mode
The technique effect of the design of the utility model, concrete structure and generation is carried out below with reference to embodiment and attached drawing
It clearly and completely describes, to be completely understood by the purpose of this utility model, feature and effect.Obviously, described embodiment
It is a part of the embodiment of the utility model, rather than whole embodiments, it is based on the embodiments of the present invention, the skill of this field
The other embodiment that art personnel are obtained without creative efforts belongs to the model of the utility model protection
It encloses.In addition, all connection/connection relations arrived involved in patent, not singly refer to component and directly connect, and referring to can be according to specific
Performance, by adding or reducing couple auxiliary, to form more preferably coupling structure.In the utility model it is involved it is upper,
Under, the orientation such as left and right description be only for the mutual alignment relation of each component part of the utility model in attached drawing.
Each technical characteristic in the utility model, can be with combination of interactions under the premise of not conflicting conflict.
Fig. 1 is the structural schematic diagram of the utility model heavy-metal contaminated soil prosthetic device one embodiment, referring to Fig.1,
The prosthetic device of the heavy-metal contaminated soil of the present embodiment includes：Baffling device 100, elution device 200, leachates processing unit
300 and rehabilitation plant 400, baffling device 100 includes barrier wall 110, and the barrier wall 110 surrounds about one connection, surrounding
Baffling device 100 is arranged in contaminated soil region so that contaminated soil is located at isolated area 120 in closed isolated area 120
It is interior, to be isolated with the soil of 100 perimeter of baffling device.
Elution device 200 is for preparing eluent and eluent being sprayed in isolated area 120, to isolated area 120
Interior soil is eluted.Elution device 200 includes that eluent prepares pond 210 and spray equipment 220, which prepares pond
210 for preparing and holding eluent, and spray equipment 220 is prepared pond 210 with eluent by pipeline 230 and is connected to, to drench
Lotion is prepared soil of the prepared eluent into isolated area 120 in pond 210 and is sprayed.Spray equipment 220 includes several
Nozzle, which is arranged above isolated area 120, convenient for being sprayed to soil surface in isolated area 120.Eluent is lemon
The single components such as acid, EDDS, saponin(e, IDS or the mixed solvent prepared by a certain percentage, eluent can will be in contaminated soil
Heavy metal dissolves out to obtain leachates.
Leachates processing unit 300 is used to collect and purify eluent and flows through the soil in isolated area 120 and the leaching that is formed
Go out liquid comprising draw-out device 310, extraction well 320 and leachates processing pond 330, extraction well 320 are arranged in isolated area 120
Soil in and extend along depth of soil direction, along depth to soil water barrier, can be contaminated at soil according to isolated area
Subsurface flow field distribution and underground water pollution the situation rational an appropriate number of pumping of location arrangements within the scope of 120 soil of isolated area
Well is carried, the quantity setting of extraction well depends on effective spacing of extraction well.Draw-out device 310 is connected to all extraction wells 320 and leads to
It crosses extraction well 320 to extract the leachates in isolated area 120 and be transported in leachates processing pond 330, leachates processing pond 330 is selected
With lime, Na2S, zeolite, activated carbon etc. carry out processing leachates, and leachates processing pond 330 prepares pond 210 with eluent and is connected
It is logical, after heavy metal concentration meets IV class water quality standard of surface water to 330 supernatant of leachates processing pond after testing, extracting to eluent
It prepares in pond 210, for preparing eluent, isolated area 120 is back to by spray equipment 220 and carries out Soil leaching.
Measurement periodically is sampled to the well water in extraction well 320, monitors the heavy metal concentration of well water in extraction well 320,
When finding well water content of beary metal apparent increase in extraction well 320, near or above IV class water quality standard of underground water, then start extracting
Well water in extraction well 320 is extracted to leachates processing pond 330 and is handled and recycled by well 320.
After the completion of the Soil leaching in isolated area, rehabilitation plant 400 is planted in the soil in isolated area 120, is planted
Modifying agent can be added before plant in the soil in isolated area, specially to the downward 0~20cm models of upper soll layer in the isolated area
Soil addition modifying agent in enclosing forms soil improvement layer 002, soil environment needed for plant growth is complied with, so that soil has
Conducive to plant growth.When it is implemented, according to the type of the pollution condition reasonable preparation rehabilitation plant of variety classes heavy metal, with
Just realizing that the while of repairing obtains preferable landscape effect.For example, for Mn contaminated soils, selection plantation China fir, Elaeocarpus decipiens,
The rehabilitation plants such as Michelia figo, bougainvillea, feather cockscomb；For Zn contaminated soils, selection plantation Sedum alfredii Hance, four-o'clock, balsamine
Equal rehabilitation plants, for Cd contaminated soils, selection plantation Jatropha curcas, Sedum alfredii Hance, rape flower, spiderflower, red sage etc. are repaiied
Multiple plant, can effective rehabilitating soil and urban afforestation landscape effect requirement.It is adopted in time in plant growing cycle
It receives, and timely processing fallen leaves, branch bar.
Using the soil restoring device carry out soil remediation process approximately as：
Contaminated soil is isolated in situ using baffling device 100, using elution device 200 to isolated area 120
Interior soil is eluted, and eluent elutes contaminated soil under the effect of gravity, to form elution layer 001, periodically to taking out
It carries the well water in well 320 and is sampled measurement, monitor the heavy metal concentration of well water in extraction well 320, when in discovery extraction well 320
Well water content of beary metal is significantly raised, when near or above standard, then starts extraction well 320, utilizes draw-out device 310 and extracting
Leachates are drawn in leachates processing pond 330 by well 320 to be recycled, is handled, taken at regular intervals soil surface in lessivation
Soil sample at following 60cm is detected, and after soil sample complies with standard at this, stops elution.After stopping elution, in isolated area 120
Modifying agent is added in the soil of interior 0~20cm depth, soil improvement layer 002 is formed, so that soil is conducive to plant growth, then
Rehabilitation plant 400 is planted on soil improvement layer 002 again, to carry out restoration of the ecosystem.
Heavy-metal contaminated soil can be isolated in situ for the utility model soil restoring device, and carry out preliminary treatment
And purification, be contaminated soil without transfer, recycling rehabilitation plant, contaminated soil carries out restoration of the ecosystem to treated, with into
One step reparation purifies, and dual reparation makes the repairing efficiency of contaminated soil greatly shorten, and reached while repairing compared with
Good landscape effect, has the function of duration reparation to contaminated soil, reaches that repairing efficiency is short, rehabilitation cost is low, effect is held
The high requirement of long property is particularly suitable for the use of Urban Heavy Metal Pollution place, realizes and is efficiently quickly repaiied to municipal pollution place
Multiple purpose.
The preferred embodiment of the utility model is above are only, but the utility model is not restricted to the embodiment, is familiar with
Those skilled in the art can also make a variety of equivalent variations or replacement without departing from the spirit of the present invention, this
Equivalent deformation or replacement are all contained in the application claim limited range a bit.
Claims (6)
1. a kind of prosthetic device of heavy-metal contaminated soil, it is characterised in that：At baffling device, elution device, leachates
To manage device and rehabilitation plant, the baffling device include barrier wall, and the barrier wall surrounds about one connection, all round closure
Isolated area, the elution device is for preparing eluent and eluent being sprayed to the isolated area, the leachates processing dress
It sets and flows through the isolated area and the leachates that are formed for collecting eluent, the rehabilitation plant is planted in the isolated area.
2. prosthetic device according to claim 1, it is characterised in that：The elution device includes that eluent prepares pond and spray
Shower device, the eluent prepare pond for preparing and holding eluent, and the spray equipment passes through pipeline and the eluent
Prepare pond connection.
3. prosthetic device according to claim 2, it is characterised in that：The spray equipment includes several nozzles, the spray
Head is arranged above the isolated area.
4. prosthetic device according to claim 2, it is characterised in that：The leachates processing unit include draw-out device and
Leachates processing pond, the draw-out device are connected to the isolated area, for extracting the leachates in the isolated area to institute
State in leachates processing pond, the leachates processing pond for collecting and purifying leachates, the leachates processing pond with it is described
Eluent prepares pond and is connected.
5. prosthetic device according to claim 4, it is characterised in that：The leachates processing unit further includes extraction well,
The extraction well is arranged in the soil in the isolated area and extends along depth of soil direction, the draw-out device and the pumping
Propose well connection.
6. prosthetic device according to any one of claims 1 to 5, it is characterised in that：The barrier wall is reinforced concrete
The thickness of soil structure wall, the barrier wall is 10~30cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721398495.3U CN207615357U (en) | 2017-10-26 | 2017-10-26 | A kind of heavy-metal contaminated soil prosthetic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721398495.3U CN207615357U (en) | 2017-10-26 | 2017-10-26 | A kind of heavy-metal contaminated soil prosthetic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207615357U true CN207615357U (en) | 2018-07-17 |
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ID=62827122
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721398495.3U Active CN207615357U (en) | 2017-10-26 | 2017-10-26 | A kind of heavy-metal contaminated soil prosthetic device |
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| CN (1) | CN207615357U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107913903A (en) * | 2017-10-26 | 2018-04-17 | 深圳市铁汉生态环境股份有限公司 | A kind of heavy-metal contaminated soil restorative procedure and device |
-
2017
- 2017-10-26 CN CN201721398495.3U patent/CN207615357U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107913903A (en) * | 2017-10-26 | 2018-04-17 | 深圳市铁汉生态环境股份有限公司 | A kind of heavy-metal contaminated soil restorative procedure and device |
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Address after: Unit 2002, 20 / F, block B, phase I, Tianan cloud Valley Industrial Park, 2018 Xuegang Road, Bantian street, Longgang District, Shenzhen, Guangdong 518129 Patentee after: Cecep Tiehan ecological environment Co.,Ltd. Address before: Unit 2002, 20 / F, block B, phase I, Tianan cloud Valley Industrial Park, 2018 Xuegang Road, Bantian street, Longgang District, Shenzhen, Guangdong 518129 Patentee before: SHENZHEN TECHAND ECOLOGICAL ENVIRONMENT Co.,Ltd. |