CN208712508U - One kind being suitable for thin solum organic pollutant prosthetic device - Google Patents
One kind being suitable for thin solum organic pollutant prosthetic device Download PDFInfo
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- CN208712508U CN208712508U CN201821267034.7U CN201821267034U CN208712508U CN 208712508 U CN208712508 U CN 208712508U CN 201821267034 U CN201821267034 U CN 201821267034U CN 208712508 U CN208712508 U CN 208712508U
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Abstract
The utility model discloses one kind be suitable for thin solum organic pollutant prosthetic device and, prosthetic device includes extraction well, air exhauster, purification pot, heating storage tank and blowdown pipe, extraction well is extended vertically into thin solum, the suction side of air exhauster is connect with extraction well, exhaust end is connected with the inlet end of purification pot, the outlet side of purification pot is connected with the lower end of heating storage tank, the upper end of heating storage tank is connected with multiple blowdown pipes by gas-guide tube, and the bottom end of blowdown pipe is inserted perpendicularly into thin solum.Two groups of blowdown pipes are circumferentially respectively set in the prosthetic device of the utility model centered on extraction well, improve the radius of influence of individual well pumping, and pass through the design of different depth blowdown pipe, overcome the heterogeneity during soil aerator, the phenomenon that reducing aeration " dead zone " occurs, and improves the disposition effect of whole device.
Description
Technical field
The utility model relates to soil environment recovery technique fields, and in particular to one kind is suitable for thin solum organic contamination
Object prosthetic device.
Background technique
Currently, industrial development is rapid, a large amount of pollutant enters environment, and wherein soil is as one of main receptor, soil
Earth environmental quality deteriorates.Currently, the main dystopy disposition of soil restoring technology, aeration in situ, microbial augmentation reparation in situ
Etc. technologies.However all being had some limitations as of technology itself, as dystopy disposal technology is more in practical applications, but
Its project amount is big, and rehabilitation cost is high, soil whereabouts etc. after reparation.Microbial augmentation recovery technique in situ is mainly microorganism remediation
Period is long, it is uncertain big to repair.Aeration in situ mainly for volatile organic contaminant, can repair within a short period of time by
Contaminated soil, but it is high to consume energy in repair process, and the radius of influence is limited, and when especially thin solum is repaired, extract system is only capable of
Influence extraction well periphery.Simultaneously in situ in aeration process, the common presence of aerating system and extract system increases operation and dimension
Protect cost.
Therefore, it is that technology pushes away that in-situ immobilization efficiency is improved on the basis of how being aerated in situ at present, reduces rehabilitation cost
Wide main problem.
Utility model content
The purpose of this utility model is to provide one kind to be suitable for thin solum organic pollutant prosthetic device, to solve
The problems such as existing soil environment remediation efficiency is low, rehabilitation cost is high.
To achieve the above object, the technical solution of the utility model are as follows:
One kind is suitable for thin solum organic pollutant prosthetic device, and the prosthetic device includes extraction well, air exhauster, net
Change tank, heating storage tank and blowdown pipe, the extraction well to extend vertically into thin solum, the suction side of air exhauster and extraction well connect
It connects, exhaust end is connected with the inlet end of purification pot, and the outlet side of purification pot is connected with the lower end of heating storage tank, heats storage tank
Upper end multiple blowdown pipes are connected with by gas-guide tube, the bottom end of blowdown pipe is inserted perpendicularly into thin solum；The blowdown pipe
Including the first blowdown pipe and the second blowdown pipe, the radius centered on the extraction well is uniformly to divide respectively on the circumference of R1 and R2
Multiple first blowdown pipes and multiple second blowdown pipes are furnished with, wherein R2 is greater than R1.
In one embodiment, the extraction well setting is being repaired soil center.
In one embodiment, one is provided on the extraction well to the extended line of one of them the first blowdown pipe
Two blowdown pipes.
In one embodiment, the depth in the second blowdown pipe insertion soil is greater than the first blowdown pipe insertion soil
In depth.
In one embodiment, the depth in the second blowdown pipe insertion soil is 2.5m, the insertion of the first blowdown pipe
Depth in soil is 1.5m.
In one embodiment, the extraction well bottom end is provided with the first sieve pore portion, the bottom end of first blowdown pipe
It is provided with the second sieve pore portion, the bottom end of second blowdown pipe is provided with third sieve pore portion；First sieve pore portion, the second sieve pore
It is circumferentially arranged in portion and third sieve pore portion to have multiple ventholes；The height in first sieve pore portion is 1m, the second sieve pore portion
Height be 0.5m, the height in third sieve pore portion is 1m.
In one embodiment, adsorbent is provided in the purification pot；The adsorbent be active carbon, molecular sieve and
It is one or more kinds of in aluminium oxide.
In one embodiment, the prosthetic device is equipped with monitoring device.
In one embodiment, resistive heater is provided in the heating storage tank, the resistive heater is along heating
Storage tank is longitudinally disposed.
A kind of application method of above-mentioned prosthetic device, the application method the following steps are included:
Extraction well, the first blowdown pipe and the second blowdown pipe are extended vertically into thin solum；
Open air exhauster, include volatile organic matter soil gas enter under the action of air exhauster through extraction well it is net
Change in tank, the volatile organic matter in soil gas is cleaned adsorbent Adsorption And Retention in tank, and soil gas is purified；
Purified soil gas pass through again pipeline enter heating storage tank heated, when heating storage tank in gas reach one
After level pressure is strong, the gas outlet of heating storage tank upper end is opened, and soil gas after heating is under the action of pressure difference respectively by the
One blowdown pipe and the second blowdown pipe, which enter in thin solum and collect around to extraction well, completes first round reparation, completes first
The soil gas that wheel is repaired re-starts next round reparation, organic dirt that soil gas contains it by the reparation to move in circles
Dye object concentration is reduced.
The utility model has the advantages that
The utility model one kind is suitable for thin solum organic pollutant prosthetic device and is circumferentially divided centered on extraction well
Two groups of blowdown pipes are not set, improves the radius of influence of individual well pumping, and pass through the design of different depth blowdown pipe, soil is overcome to expose
Heterogeneity during gas reduces the phenomenon that being aerated " dead zone " and occurs, improves the disposition effect of whole device.
Detailed description of the invention
A kind of structural schematic diagram suitable for thin solum organic pollutant prosthetic device of Fig. 1 the utility model.
Fig. 2 is the distribution map of the utility model blowdown pipe.
Specific embodiment
The following examples illustrate the utility model, but is not intended to limit the scope of the present invention.
Embodiment 1
Research park it is located at the crude benzol refining benzene storage tank region of coking chemical factory, North China, China.The coking chemical factory begins
Be built in the 1950s, closing was the big moulded coal comprehensive utilization enterprise produced based on coal gas and coke in 2006, crude benzol and
Its rectifying product refining benzene is the essential industry byproduct of the factory, and annual output is in 50,000 t or so.Main feature pollutant is in soil
The benzene homologues such as benzene, toluene, ethylbenzene, dimethylbenzene, styrene.
One kind as shown in Figure 1 is applied to the soil suitable for thin solum organic pollutant prosthetic device, this is repaired
Repacking, which is set, to be extended vertically into including extraction well 1, air exhauster 2, purification pot 3, heating storage tank 4 and blowdown pipe 5, the extraction well 1 to this
In Polluted area in the thin solum of center, protruding into depth is two meters, and 1 bottom end of extraction well is provided with the first sieve pore portion
111, the height in first sieve pore portion is 1m, circumferentially arranged in the first sieve pore portion 111 to have multiple ventholes, the gas in soil
Body passes through venthole and enters in extraction well, and the suction side of air exhauster 2 is connect with extraction well 1, the inlet end of exhaust end and purification pot 3
It is connected, the gas in soil enters in extraction well 1 through the venthole of extraction well 1, is then inhaled under the action of air exhauster 2
Purified treatment is carried out in into purification pot 3, the outlet side of purification pot 3 is connected with the lower end of heating storage tank 4, heats the upper of storage tank 4
End is connected with multiple blowdown pipes 5 by gas-guide tube, and the bottom end of blowdown pipe 5 is inserted perpendicularly into thin solum, net by purification pot 3
The heated heating of storage tank 4 expansion of soil gas after change returns in thin solum under the action of pressure difference through blowdown pipe 5；
The blowdown pipe 5 includes the first blowdown pipe 51 and the second blowdown pipe 52, and the radius centered on the extraction well 1 is
Multiple first blowdown pipes 51 and multiple second blowdown pipes 52 have been respectively uniformly distributed on the circumference of R1 and R2, wherein R2 is greater than R1,
Second blowdown pipe 52 is provided on the extraction well 1 to the extended line of one of them the first blowdown pipe 51.Described second mends
Tracheae 52 is inserted into the depth that the depth in soil is greater than in the first blowdown pipe 51 insertion soil.Second blowdown pipe 52 is inserted into soil
Depth in earth is 2.5m, and the depth that the first blowdown pipe 51 is inserted into soil is 1.5m.By arranging that two groups of blowdown pipes mention
The radius of influence of high individual well pumping, and pass through the design of different depth blowdown pipe, overcome the heterogeneity during soil aerator,
The phenomenon that reducing aeration " dead zone " occurs, and improves the disposition effect of whole device.
The bottom end for taking out first blowdown pipe 51 is provided with the second sieve pore portion 511, the bottom of second blowdown pipe 52
End is provided with third sieve pore portion 521；In second sieve pore portion 511 and third sieve pore portion 521 it is circumferentially arranged have it is multiple go out
Stomata；The height in first sieve pore portion is 1m, and the height in the second sieve pore portion is 0.5m, and the height in third sieve pore portion is 1m, is led to
The venthole for crossing the second sieve pore portion 511 and third sieve pore portion 521 equably returns to soil by purified soil gas
In.
Adsorbent is provided in the purification pot 3, the adsorbent is that Alveolate activated carbon and activated carbon fibre combination are inhaled
It is attached, it can be effectively removed the benzene homologues pollutants such as benzene, toluene, ethylbenzene, dimethylbenzene, the styrene in soil in this way.
The prosthetic device is equipped with monitoring device, and monitoring device is then that real-time control, prison are carried out to entire prosthetic device
Control sucking rate, the heating temperature in heating storage tank 4, the pollutant concentration for purifying outlet and air inlet.
Resistive heater 7 is provided in the heating storage tank 4, the resistive heater 7 is longitudinally disposed along heating storage tank 4,
Such design can make the gas thermally equivalent entered in heating storage tank 4.
Embodiment 2
Implement the application method of 1 prosthetic device the following steps are included:
Extraction well 1, the first blowdown pipe 51 and the second blowdown pipe 52 are extended vertically into thin solum 6；
Open air exhauster 2, include volatile organic matter soil gas under the action of air exhauster 2 through extraction well 1 into
Enter in purification pot 3, the volatile organic matter in soil gas is cleaned adsorbent Adsorption And Retention in tank 3, and soil gas obtains only
Change；
Purified soil gas pass through again pipeline enter heating storage tank 4 heated, when heating storage tank 4 in gas reach
After certain pressure intensity, the gas outlet of heating 4 upper end of storage tank is opened, and the soil gas after heating passes through respectively under the action of pressure difference
First blowdown pipe 51 and the second blowdown pipe 52, which enter in thin solum 6 and collect around to extraction well 1, completes first round reparation,
It completes the soil gas that the first round repairs and re-starts next round reparation, soil gas contains it by the reparation to move in circles
Organic pollutant concentration be reduced.
It is circularly repaired based on soil of the above step to contaminated area, after repairing 4 days, passes through soil known to monitoring
Earth pollutant concentration reduces 60%.
Although above having made detailed description to the utility model with generality explanation and specific embodiment,
On the basis of the utility model, it can be made some modifications or improvements, this is apparent to those skilled in the art
's.Therefore, these modifications or improvements on the basis of without departing from the spirit of the present invention, belong to the utility model and want
Seek the range of protection.
Claims (9)
1. one kind is suitable for thin solum organic pollutant prosthetic device, which is characterized in that the prosthetic device includes extraction well
(1), air exhauster (2), purification pot (3), heating storage tank (4) and blowdown pipe (5), the extraction well (1) extend vertically into shallow soil
In earth, the suction side of air exhauster (2) is connect with extraction well (1), and exhaust end is connected with the inlet end of purification pot (3), purification pot
(3) outlet side is connected with the lower end of heating storage tank (4), and the upper end of heating storage tank (4) is connected with multiple benefits by gas-guide tube
The bottom end of tracheae (5), blowdown pipe (5) is inserted perpendicularly into thin solum；The blowdown pipe (5) include the first blowdown pipe (51) and
Second blowdown pipe (52), the radius centered on the extraction well (1) are multiple to be respectively uniformly distributed on the circumference of R1 and R2
First blowdown pipe (51) and multiple second blowdown pipes (52), wherein R2 is greater than R1.
2. as described in claim 1 a kind of suitable for thin solum organic pollutant prosthetic device, which is characterized in that the pumping
Gas well (1) setting is being repaired soil center.
3. as described in claim 1 a kind of suitable for thin solum organic pollutant prosthetic device, which is characterized in that the pumping
Second blowdown pipe (52) is provided on gas well (1) to the extended line of one of them the first blowdown pipe (51).
4. as described in claim 1 a kind of be suitable for thin solum organic pollutant prosthetic device, which is characterized in that described the
Two blowdown pipes (52) are inserted into the depth that the depth in soil is greater than in the first blowdown pipe (51) insertion soil.
5. as claimed in claim 4 a kind of be suitable for thin solum organic pollutant prosthetic device, which is characterized in that described the
The depth that two blowdown pipes (52) are inserted into soil is 2.5m, and the depth that the first blowdown pipe (51) is inserted into soil is 1.5m.
6. as claimed in claim 5 a kind of suitable for thin solum organic pollutant prosthetic device, which is characterized in that the pumping
Gas well (1) bottom end is provided with the first sieve pore portion (111), and the bottom end of first blowdown pipe (51) is provided with the second sieve pore portion
(511), the bottom end of second blowdown pipe (52) is provided with third sieve pore portion (521)；First sieve pore portion (111), second
It is circumferentially arranged in sieve pore portion (511) and third sieve pore portion (521) to have multiple ventholes；The height in first sieve pore portion is
1m, the height in the second sieve pore portion are 0.5m, and the height in third sieve pore portion is 1m.
7. as described in claim 1 a kind of suitable for thin solum organic pollutant prosthetic device, which is characterized in that described net
Change and be provided with adsorbent in tank (3), the adsorbent is one or more kinds of in active carbon, molecular sieve and aluminium oxide.
8. as described in claim 1 a kind of suitable for thin solum organic pollutant prosthetic device, which is characterized in that described to repair
Apparatus for coating is equipped with monitoring device.
9. as described in claim 1 a kind of suitable for thin solum organic pollutant prosthetic device, which is characterized in that described to add
It is provided with resistive heater (7) in hot tank (4), the resistive heater (7) is longitudinally disposed along heating storage tank (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821267034.7U CN208712508U (en) | 2018-08-07 | 2018-08-07 | One kind being suitable for thin solum organic pollutant prosthetic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821267034.7U CN208712508U (en) | 2018-08-07 | 2018-08-07 | One kind being suitable for thin solum organic pollutant prosthetic device |
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| Publication Number | Publication Date |
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| CN208712508U true CN208712508U (en) | 2019-04-09 |
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ID=65976503
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821267034.7U Active CN208712508U (en) | 2018-08-07 | 2018-08-07 | One kind being suitable for thin solum organic pollutant prosthetic device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108787730A (en) * | 2018-08-07 | 2018-11-13 | 北京伦至环境科技有限公司 | One kind being suitable for thin solum organic pollution prosthetic device and its application method |
| CN112285321A (en) * | 2020-10-09 | 2021-01-29 | 合肥工业大学 | VOCs polluted soil body aeration repair test device and test method |
-
2018
- 2018-08-07 CN CN201821267034.7U patent/CN208712508U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108787730A (en) * | 2018-08-07 | 2018-11-13 | 北京伦至环境科技有限公司 | One kind being suitable for thin solum organic pollution prosthetic device and its application method |
| CN108787730B (en) * | 2018-08-07 | 2024-01-30 | 北京伦至环境科技有限公司 | Organic pollutant repairing device suitable for shallow soil and application method of organic pollutant repairing device |
| CN112285321A (en) * | 2020-10-09 | 2021-01-29 | 合肥工业大学 | VOCs polluted soil body aeration repair test device and test method |
| CN112285321B (en) * | 2020-10-09 | 2021-06-01 | 合肥工业大学 | VOCs polluted soil body aeration repair test device and test method |
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