CN109108060A - A kind of device and method for VOCs in meet an urgent need detection and injection rehabilitating soil - Google Patents
A kind of device and method for VOCs in meet an urgent need detection and injection rehabilitating soil Download PDFInfo
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- CN109108060A CN109108060A CN201810859791.1A CN201810859791A CN109108060A CN 109108060 A CN109108060 A CN 109108060A CN 201810859791 A CN201810859791 A CN 201810859791A CN 109108060 A CN109108060 A CN 109108060A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
- B09C1/085—Reclamation of contaminated soil chemically electrochemically, e.g. by electrokinetics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/002—Reclamation of contaminated soil involving in-situ ground water treatment
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C2101/00—In situ
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Abstract
The invention discloses a kind of device and methods for VOCs in meet an urgent need detection and injection rehabilitating soil, it include: in-situ immobilization boring rod set and membrane interface detector, in-situ immobilization boring rod set includes drill bit assembly and drilling rod, drilling rod is double-layer hollow cannula structure, membrane interface detector include bundle assembly, heating take gas module and electrical conductivity inductor, bundle assembly is through in the outer layer cavity of drilling rod, bundle assembly includes heat block electric wire and electrical conductivity inductor electrode wires, is equipped with air inlet pipe and the escape pipe for external analytical equipment in bundle assembly；Heating takes gas module and electrical conductivity inductor to be respectively positioned on inside drill bit assembly.The present invention determines the total concentration (sxemiquantitative) and spatial distribution of pollutant by membrane interface detector rapid preliminary, design recovery scenario at the first time simultaneously, in-situ immobilization is carried out by hybrid injection prosthetic device, timely and effectively prevents pollution from aggravating and spreading.
Description
Technical field
The present invention relates in environment remediation technical field, more particularly to a kind of be used to meet an urgent need detection and injection rehabilitating soil
The device and method of VOCs.
Background technique
Since 21 century, with the rapid development of economy, the use of a large amount of chemical substances has resulted in soil and groundwater not
With the pollution of degree, the environmental pressure that soil is born is increasing.And due to the fluctuation of the leaching of rainwater and level of ground water, can also
Cause the cross contamination of soil and groundwater.
In general, the pollution in soil and groundwater is broadly divided into inorganic pollution and organic pollutant.And it is therein
Volatile organic contaminant has attracted much attention always for a long time, as a kind of special soil pollution, due to its complicated component and
Risk is big, and has the characteristics that concealment, latency, chronicity, volatility, therefore be listed in environment and answer priority acccess control
Toxic pollutant.After these pollutants can be discharged into environment, serious influence can be brought, such as: threatening the water quality of underground water source
Safety；Pollute atmospheric environment；Change soil characteristic, influences agricultural production etc..Petroleum hydrocarbon in volatile organic contaminant simultaneously
Gas build will cause explosion danger in building underground；Public underground pipe network facility and leakage hydrocarbon exposure, can also accelerate it
Aging.There is high harmfulness and easy diffusivity just because of these pollutants, therefore when finding pollution, it is necessary at the first time
Its pollution range and pollution level are found out by reasonable technological means and effective reparation means is taken to repair.
Conventional contaminated site investigation work specifically include that soil sampling, establish groundwater monitoring well, groundwater sampling,
SOIL GAS sampling, lab analysis etc..These methods are comparatively time-consuming, and acquired results are dotted information and cannot be live true
It is fixed, therefore can not quickly and effectively determine pollution range.Breaking out places in face of some paroxysmal pollutions, (predominantly volatility has
Machine contact scar object VOCs), conventional investigation repair mode is difficult to timely be controlled pollution at the first time, this kind of to adapt to
Burst Pollution breaks out the investigation in place and the needs of reparation, the exploitation of live fast investigation and recovery technique are extremely urgent.
To understand soil contamination grade and range, timely and effectively prevents pollution from aggravating and spreading, need to design a kind of spy
It surveys volatile organic contaminant and the device and technique of lash-up recovering can be carried out in time, break out place, energy in paroxysmal pollution
It is enough to primarily determine that pollution level and pollution are distributed and are repaired in time at the first time.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of for VOCs in meet an urgent need detection and injection rehabilitating soil
Device and method, be able to achieve paroxysmal pollution outburst place at the first time primarily determining pollution level and pollution distribution
And it is repaired in time.
The present invention is implemented with the following technical solutions:
A kind of device for VOCs in meet an urgent need detection and injection rehabilitating soil, comprising: in-situ immobilization boring rod set and film
Interface detector, the in-situ immobilization boring rod set include drill bit assembly and drilling rod, and the drilling rod is double-layer hollow casing knot
Structure, drill bit assembly are installed on the bottom of drilling rod, center cavity are equipped in the drill bit assembly, and the center cavity and drilling rod connect
Logical, the membrane interface detector includes that bundle assembly, heating take gas module and electrical conductivity inductor, wherein the bundle assembly
Through in the outer layer cavity of drilling rod, the bundle assembly includes being respectively used to that gas module and electrical conductivity inductor is taken to connect with heating
The heat block electric wire and electrical conductivity inductor electrode wires connect, the interior air inlet pipe and use being equipped with for inputting nitrogen of the bundle assembly
In the escape pipe of external analytical equipment；The heating takes gas module and electrical conductivity inductor to be respectively positioned on inside drill bit assembly, described
Electrical conductivity inductor is located at heating and takes the lower section of gas module, and the heating takes and is equipped with nitrogen circulating system in gas module, it is described go out
Tracheae and air inlet pipe are connected to the nitrogen circulating system.
Further, the gas outlet of the escape pipe at least with flame ionization detector FID, electron capture detector
ECD is connected to one of photoionization detector PID analytical equipment.
Further, the double-layer hollow cannula structure includes outer tube and inner tube, and outer tube and inner tube are hollow
Structure, the enclosure space between the outer tube and inner tube form medicament cavity, and the outer sleeve upper is equipped with for injecting medicine
The straight coupling of agent, said inner tube top are equipped with the angle coupling for injecting fluid.
Further, the outer tube includes the top outer bar being sequentially communicated from top to bottom and lengthening outer bar, said inner tube packet
It includes the hydraulic tube being sequentially communicated from top to bottom, top interior bar and lengthens interior bar, the inner wall bottom for lengthening outer bar and lengthening interior bar
Outer wall at the top of seal, the top outer bar and the enclosure space for pushing up interior bar form medicament cavity, the lengthenings outer bar with add
The enclosure space of long interior bar forms lower medicament cavity.
Further, the outer layer of the bundle assembly is corrosion-resistant wire protective hose.
Further, the fabrication hole between the in-situ immobilization boring rod set and membrane interface detector is filled with sealant.
Further, the air inlet of the air inlet pipe is equipped with flowmeter.
A method of for VOCs in meet an urgent need detection and injection rehabilitating soil, comprising the following steps:
Drill bit assembly is pierced into ground end to be detected and in repair, makes heating that gas module and electrical conductivity inductor be taken to be respectively positioned on
Ground end；
Nitrogen is inputted in the air inlet pipe of bundle assembly, by heating the ground end organic matter after taking gas module to be gasified；
Heating takes and is equipped with nitrogen circulating system in gas module, and the escape pipe and air inlet pipe connect with nitrogen circulating system
Logical, the gas composition by analyzing escape pipe determines polluted information to be detected and in repair；
According to polluted information, recovery scenario is determined；
By in-situ immobilization boring rod set to be detected and in repair carry out in-situ immobilization.
By in-situ immobilization boring rod set to it is to be detected and in repair carry out in-situ immobilization the step of include: air inlet pipe into
Port is equipped with flowmeter, and the in-situ immobilization boring rod set cooperation flowmeter is to be detected and in repair carry out in-situ immobilization.
In to be detected and ground end in repair every 1.5cm depth, passes through electrical conductivity inductor and record ground end organic matter
Voltage response intensity and soil conductivity degree Value Data.
Compared with prior art, the beneficial effects of the present invention are:
The present invention by membrane interface detector quickly in real time record volatile organic matter VOCs relative concentration (sxemiquantitative) and
Soil conductivity provides the Two dimensional Distribution information of VOCs relative concentration in soil with the variation of depth, and rapid preliminary determines pollution
The total concentration (sxemiquantitative) and spatial distribution of object, at the same at the first time design recovery scenario, by hybrid injection prosthetic device into
Row in-situ immobilization timely and effectively prevents pollution from aggravating and spreading, and avoids the contaminated soil generated in tradition probing investigation, underground
The processing of water and resulting expense, or because its it is improper disposition cause contamination shift and field investigation personnel pollution
The risks such as exposure.Meanwhile by recording the voltage response intensity and soil conductivity degree of ground end organic matter every 1.5cm depth
Continuous genesis analysis of the polluter under earth's surface can be directly presented in Value Data changes with the corresponding soil texture, and not by
Effect of Underground Water Level.The soil organic matter detected value and electrical conductivity numerical value for summarizing several continuous measuring points, can be obtained polluter and exist
The response value spatial variations trend of different level distance and depth.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram for the device of VOCs in meet an urgent need detection and injection rehabilitating soil of the invention；
Fig. 2 is that heating of the invention takes gas module and electrical conductivity inductor to be mounted on the structural representation inside drill bit assembly
Figure；
Fig. 3 is a kind of A in meet an urgent need detection and injection rehabilitating soil in the drill bit assembly 1 of the device of VOCs of the present invention
The enlarged drawing at place.
Wherein: 1, drill bit assembly；2, interior bar is lengthened；3, outer bar is lengthened；4, interior bar is pushed up；5, outer bar is pushed up；6, hydraulic tube；7, straight
Pass joint；8, angle coupling；9, bundle assembly；10, heating takes gas module；11, electrical conductivity inductor；12, air inlet pipe；13, go out
Tracheae；14, heat block electric wire；15, electrical conductivity inductor electrode wires.
Specific embodiment
In the following, being described further in conjunction with attached drawing and specific embodiment to the present invention, it should be noted that not
Under the premise of conflicting, new implementation can be formed between various embodiments described below or between each technical characteristic in any combination
Example:
It is more preferable to make the present invention provides a kind of device and method for VOCs in meet an urgent need detection and injection rehabilitating soil
Understand the present invention, now present invention is described by embodiment:
It please refers to shown in Fig. 1, a kind of device for VOCs in meet an urgent need detection and injection rehabilitating soil, comprising: in situ to repair
Multiple boring rod set and membrane interface detector, membrane interface detector (Membrane Interface Probe, MIP) technology can be real-time
Volatile organic matter (VOCs) three-dimensional sxemiquantitative polluted information is provided, thus the preliminary total concentration (semidefinite for quickly determining pollutant
Amount) and spatial distribution.But it cannot timely repair pollution, contamination containment diffusion.
In-situ immobilization boring rod set includes drill bit assembly 1 and drilling rod, and drilling rod is double-layer hollow cannula structure, drill bit assembly 1
It is installed on the bottom of drilling rod, is equipped with center cavity in drill bit assembly 1, and the center cavity is connected to drilling rod, membrane interface detection
Device include bundle assembly 9, heating take gas module 10 and electrical conductivity inductor 11, wherein outer layer of the bundle assembly 9 through drilling rod
In cavity, bundle assembly 9 includes the heat block electric wire for being respectively used to take gas module 10 and electrical conductivity inductor 11 to connect with heating
14 and electrical conductivity inductor electrode wires 15, as shown in figure 3, being equipped with the air inlet pipe 12 for inputting nitrogen in bundle assembly 9 and using
In the escape pipe 13 of external analytical equipment；The outer layer of bundle assembly 9 may be configured as corrosion-resistant wire protective hose, and in-situ immobilization bores
Fabrication hole between lever apparatus and membrane interface detector is filled with sealant.As shown in Fig. 2, heating takes gas module 10 and electrical conductivity to incude
Device 11 is respectively positioned on inside drill bit assembly 1, and electrical conductivity inductor 11 is set to the lower section that heating takes gas module 10, and heating takes gas module 10
Including heat block and semi-permeable membrane, heat block penetrates into heating through semi-permeable membrane and takes gas mould for heating ground end organic matter, ground end organic matter
Block 10, exudation heating takes gas module 10 after the heated gasification of ground end organic matter, and heating, which takes, is equipped with nitrogen circulation system in gas module 10
System, escape pipe 13 and air inlet pipe 12 are connected to nitrogen circulating system.
Air inlet pipe 12 is connected with nitrogen cylinder, and nitrogen cylinder is equipped with valve, and the air inlet of air inlet pipe 12 is equipped with flowmeter,
It the gas outlet of escape pipe 13 can be with flame ionization detector FID, electron capture detector ECD and photoionization detector PID
Etc. analytical equipments connection, flame ionization ditector FID can be used for Petroleum concentration substance (such as first of on-site test low carbon chain
Alkane, butane etc.), electron capture detector ECD can be used for detecting the matter of volatile organic contaminant containing chlorine (such as trichloro ethylene, tetrachloro
Ethylene etc.), photoionization detector PID can be used for detecting aromatic compound polluter (such as benzene homologues), preliminary by detecting
Determine the concentration (sxemiquantitative) and spatial distribution of all kinds of organic pollutants.
By analytical equipment, detectable most of volatile organic contaminant matter realizes that rapid preliminary determines pollution
The total concentration (sxemiquantitative) of object, then cooperate electrical conductivity inductor 11, every 1.5cm depth, that is, record an organic pollution materials
Voltage response intensity and soil conductivity degree Value Data, can directly present continuous genesis analysis of the polluter under earth's surface with
Corresponding soil texture variation, and not by Effect of Underground Water Level.Summarize the soil organic matter detected value of several continuous measuring points
With electrical conductivity numerical value, polluter can be obtained in the response value spatial variations trend of different level distance and depth.
Specifically, double-layer hollow cannula structure includes outer tube and inner tube, outer tube and inner tube are hollow structure, housing
Enclosure space between pipe and inner tube forms medicament cavity, and outer sleeve upper is equipped with the straight coupling 7 for injection medicament, described
Inner tube top is equipped with the angle coupling 8 for injecting fluid.Outer tube specifically may include the top outer bar 5 being sequentially communicated from top to bottom
With lengthening outer bar 3, inner tube includes the hydraulic tube 6 being sequentially communicated from top to bottom, top interior bar 4 and lengthens interior bar 2, lengthens outer bar 3
It being sealed at the top of inner wall bottom and the outer wall for lengthening interior bar 2, top outer bar 5 and the enclosure space for pushing up interior bar 4 form medicament cavity,
The enclosure space for lengthening outer bar 3 and lengthening interior bar 2 forms lower medicament cavity, passes through O and encloses guarantee leakproofness.In this way, repairing in situ
When multiple, the upper and lower medicament cavity of formation can be used for conveying two kinds of medicaments of A, B, enhance repairing effect.
A method of for VOCs in meet an urgent need detection and injection rehabilitating soil, comprising the following steps:
Drill bit assembly 1 is pierced into ground end to be detected and in repair, heating is made to take gas module 10 and electrical conductivity inductor 11
It is respectively positioned on ground end；
Nitrogen is inputted in the air inlet pipe 12 of bundle assembly 9, it is organic by heating the ground end after taking gas module 10 to be gasified
Object；
Heating, which takes, is equipped with nitrogen circulating system, nitrogen circulating system and the escape pipe 13 and air inlet pipe 12 in gas module 10
It is connected to, the gas composition by analyzing escape pipe 13 determines polluted information to be detected and in repair；
According to polluted information, recovery scenario is determined；
The air inlet of air inlet pipe 12 is equipped with flowmeter, and in-situ immobilization boring rod set cooperates flowmeter to be detected and reparation
Ground carries out in-situ immobilization, can convey suitable dose in different regions, be contained in the approach of contamination, burst thing
Therefore loss minimize.
Further, it can pass through electrical conductivity inductor 11 in be detected and in repair ground end every 1.5cm depth and record
The voltage response intensity and soil conductivity degree Value Data of ground end organic matter, it is continuous under earth's surface can be directly presented polluter
Genesis analysis changes with the corresponding soil texture, and not by Effect of Underground Water Level.The soil for summarizing several continuous measuring points has
Machine quality testing measured value and electrical conductivity numerical value, can be obtained polluter and become in different level distance and the response value spatial variations of depth
Gesture.
It will be apparent to those skilled in the art that can make various other according to the above description of the technical scheme and ideas
Corresponding change and deformation, and all these changes and deformation all should belong to the protection scope of the claims in the present invention
Within.
Claims (10)
1. a kind of device for VOCs in meet an urgent need detection and injection rehabilitating soil characterized by comprising in-situ immobilization drilling rod
Device and membrane interface detector, the in-situ immobilization boring rod set include drill bit assembly and drilling rod, and the drilling rod is double-deck empty
Heart cannula structure, drill bit assembly are installed on the bottom of drilling rod, and center cavity, and the center cavity are equipped in the drill bit assembly
Be connected to drilling rod, the membrane interface detector include bundle assembly, heating take gas module and electrical conductivity inductor, wherein it is described
For bundle assembly through in the outer layer cavity of drilling rod, the bundle assembly includes being respectively used to take gas module and electrical conductivity with heating
The heat block electric wire and electrical conductivity inductor electrode wires of inductor connection, be equipped in the bundle assembly for input nitrogen into
Tracheae and escape pipe for external analytical equipment；The heating takes gas module and electrical conductivity inductor to be respectively positioned in drill bit assembly
Portion, the electrical conductivity inductor are located at the lower section that heating takes gas module, and the heating, which takes, is equipped with nitrogen circulating system in gas module,
The escape pipe and air inlet pipe are connected to the nitrogen circulating system.
2. the device according to claim 1 for VOCs in meet an urgent need detection and injection rehabilitating soil, which is characterized in that institute
State the gas outlet of escape pipe at least with flame ionization detector FID, electron capture detector ECD and photoionization detector
The connection of one of PID analytical equipment.
3. the device according to claim 1 for VOCs in meet an urgent need detection and injection rehabilitating soil, which is characterized in that institute
The double-layer hollow cannula structure stated includes outer tube and inner tube, and outer tube and inner tube are hollow structure, the outer tube and interior
Enclosure space between pipe forms medicament cavity, and the outer sleeve upper is equipped with the straight coupling for injection medicament, described interior
Tube top end is equipped with the angle coupling for injecting fluid.
4. the device according to claim 3 for VOCs in meet an urgent need detection and injection rehabilitating soil, which is characterized in that institute
It states outer tube to include the top outer bar being sequentially communicated from top to bottom and lengthen outer bar, said inner tube includes being sequentially communicated from top to bottom
Hydraulic tube, top interior bar and lengthening interior bar, the inner wall bottom for lengthening outer bar and the outer wall top for lengthening interior bar seal, described
Top outer bar and the enclosure space for pushing up interior bar form medicament cavity, and the enclosure space for lengthening outer bar and lengthening interior bar is formed down
Medicament cavity.
5. the device according to claim 1 for VOCs in meet an urgent need detection and injection rehabilitating soil, which is characterized in that institute
The outer layer for stating bundle assembly is corrosion-resistant wire protective hose.
6. the device according to claim 1 for VOCs in meet an urgent need detection and injection rehabilitating soil, which is characterized in that institute
The fabrication hole stated between in-situ immobilization boring rod set and membrane interface detector is filled with sealant.
7. the device according to claim 1 for VOCs in meet an urgent need detection and injection rehabilitating soil, which is characterized in that institute
The air inlet for stating air inlet pipe is equipped with flowmeter.
8. a kind of method for VOCs in meet an urgent need detection and injection rehabilitating soil, which comprises the following steps:
Drill bit assembly is pierced into ground end to be detected and in repair, makes heating that gas module and electrical conductivity inductor be taken to be respectively positioned on ground
Bottom；
Nitrogen is inputted in the air inlet pipe of bundle assembly, by heating the ground end organic matter after taking gas module to be gasified；
Heating, which takes, is equipped with nitrogen circulating system in gas module, escape pipe and air inlet pipe are connected to nitrogen circulating system, by dividing
The gas composition that tracheae is precipitated obtains polluted information to be detected and in repair；
According to polluted information, recovery scenario is determined；
By in-situ immobilization boring rod set to be detected and in repair carry out in-situ immobilization.
9. the method according to claim 8 for VOCs in meet an urgent need detection and injection rehabilitating soil, which is characterized in that packet
Include following steps: by in-situ immobilization boring rod set to it is to be detected and in repair carry out in-situ immobilization the step of include: air inlet pipe
Air inlet flowmeter is installed, the in-situ immobilization boring rod set cooperation flowmeter is to be detected and carry out repairing in situ in repair
It is multiple.
10. the method according to claim 8 for VOCs in meet an urgent need detection and injection rehabilitating soil, which is characterized in that
Further comprising the steps of: in be detected and ground end in repair every 1.5cm depth, recording ground end by electrical conductivity inductor has
The voltage response intensity and soil conductivity degree Value Data of machine object.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810859791.1A CN109108060A (en) | 2018-08-01 | 2018-08-01 | A kind of device and method for VOCs in meet an urgent need detection and injection rehabilitating soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810859791.1A CN109108060A (en) | 2018-08-01 | 2018-08-01 | A kind of device and method for VOCs in meet an urgent need detection and injection rehabilitating soil |
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| Publication Number | Publication Date |
|---|---|
| CN109108060A true CN109108060A (en) | 2019-01-01 |
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ID=64863848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810859791.1A Pending CN109108060A (en) | 2018-08-01 | 2018-08-01 | A kind of device and method for VOCs in meet an urgent need detection and injection rehabilitating soil |
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| Country | Link |
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| CN (1) | CN109108060A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111980699A (en) * | 2020-08-17 | 2020-11-24 | 西安交通大学 | Underground drilling part with multiple data integration and volatile gas collection |
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| CN209206027U (en) * | 2018-08-01 | 2019-08-06 | 广东省环境科学研究院 | A kind of device for VOCs in meet an urgent need detection and injection rehabilitating soil |
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| CN105021660A (en) * | 2015-08-05 | 2015-11-04 | 东南大学 | Gas-permeable probe capable of quantificationally detecting concentration of volatile organic compounds in polluted soil |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111980699A (en) * | 2020-08-17 | 2020-11-24 | 西安交通大学 | Underground drilling part with multiple data integration and volatile gas collection |
| CN111980699B (en) * | 2020-08-17 | 2022-08-05 | 西安交通大学 | Underground drilling part with multiple data integration and volatile gas collection |
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