CN109365519A - A kind of bio- ventilation system for contaminated site reparation - Google Patents
A kind of bio- ventilation system for contaminated site reparation Download PDFInfo
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- CN109365519A CN109365519A CN201811334531.9A CN201811334531A CN109365519A CN 109365519 A CN109365519 A CN 109365519A CN 201811334531 A CN201811334531 A CN 201811334531A CN 109365519 A CN109365519 A CN 109365519A
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- 238000009423 ventilation Methods 0.000 title claims abstract description 24
- 238000002347 injection Methods 0.000 claims abstract description 100
- 239000007924 injection Substances 0.000 claims abstract description 100
- 239000007788 liquid Substances 0.000 claims abstract description 81
- 238000000605 extraction Methods 0.000 claims abstract description 72
- 238000000926 separation method Methods 0.000 claims abstract description 44
- 239000002689 soil Substances 0.000 claims abstract description 28
- 238000012545 processing Methods 0.000 claims abstract description 12
- 239000007789 gas Substances 0.000 claims description 111
- 239000003344 environmental pollutant Substances 0.000 claims description 14
- 231100000719 pollutant Toxicity 0.000 claims description 14
- 239000012530 fluid Substances 0.000 claims description 13
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 9
- 239000001301 oxygen Substances 0.000 claims description 9
- 229910052760 oxygen Inorganic materials 0.000 claims description 9
- 238000005086 pumping Methods 0.000 claims description 4
- 239000000284 extract Substances 0.000 claims description 3
- 230000008439 repair process Effects 0.000 claims 1
- 230000015556 catabolic process Effects 0.000 abstract description 6
- 238000006731 degradation reaction Methods 0.000 abstract description 6
- 244000005700 microbiome Species 0.000 abstract description 4
- 230000009977 dual effect Effects 0.000 abstract description 3
- 239000005416 organic matter Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 4
- 239000000356 contaminant Substances 0.000 description 3
- 230000004103 aerobic respiration Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002906 microbiologic effect Effects 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/10—Reclamation of contaminated soil microbiologically, biologically or by using enzymes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/005—Extraction of vapours or gases using vacuum or venting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C2101/00—In situ
Abstract
The invention discloses a kind of bio- ventilation systems for contaminated site reparation, it is set to contaminated site to be repaired, including gas-liquid separation device, gas injection device, extraction device, air processing unit, liquid-treatment unit and extend to the pipe well in contaminated soil, the upper end of pipe well and pipeline are tightly connected, its lower end is closed, multiple through-holes are formed on the borehole wall of pipe well, and a general pipeline, gas injection device and extraction device are set in pipe well and connect respectively with general pipeline by gas injection pipeline and extraction line；Gas-liquid separation device is connect with extraction line, and the liquid outlet of gas-liquid separation device is connect with liquid-treatment unit；The air inlet of extraction device and the air outlet of gas-liquid separation device connect, and the air outlet of extraction device is connect with air processing unit.Pipe well in the present invention had not only been used as gas injection well but also had been used as extraction well, has dual function, reduces the quantity of well, increase time of contact and the contact area of microorganism and air, the degradation efficiency of microbe is improved, cost substantially reduces, and can reach higher efficiency.
Description
Technical field
The present invention relates to contaminated site recovery technique fields, and in particular to a kind of bio- ventilation for contaminated site reparation
System.
Background technique
The use and mismanagement of all kinds of poisonous and harmful chemicals, solid waste are stacked and are toppled over to soil surface, harmful
Waste water is permeated into soil, and exhaust gas, the pernicious gas in atmosphere and the floating dust of motor vehicle emission settle in the soil, largely with rainwater
Chemical fertilizer and fallout of pesticide cause soil more and more by contaminated chance into environment, and degree is also increasingly severe,
Contaminated area constantly expands, and has seriously threatened ecological environment and human health.
For contaminated soil, if leaning on its own purification and reparation, when needing decades even upper century-old
Between, it is the quickest, thorough, stable measure using engineering technology means reparation therefore.Wherein bio- ventilation technology is to pass through
Air or oxygen is supplied into soil, by the aerobic activity of microorganism, promotes contaminant degradation；The pressure in soil is utilized simultaneously
Force gradient promotes volatile organic matter and catabolite to flow to extraction well, post-processing is collected by extracting, to reach contaminated soil
The purpose of improvement.The existing bio- ventilation system treatment effeciency administered to contaminated soil is low, only realize gas injection well or
The simple function of extraction well flows in another extraction well after all gas injection well gas injections by barometric gradient, then through extraction well pair
Catabolite extracting is handled after collecting, entire processing cost and higher cost.
Summary of the invention
There are single gas injections when it is an object of the invention to solve the existing progress bio- ventilation system to organic contamination place
With extracting inefficiency, technical problem at high cost, for this purpose, the present invention provides a kind of bio- ventilations for contaminated site reparation
System.
It is adopted the following technical scheme that
A kind of bio- ventilation system for contaminated site reparation is set to contaminated site to be repaired, including gas-liquid point
From device, gas injection device, extraction device, air processing unit, liquid-treatment unit and the pipe well in contaminated soil is extended to, institute
The upper end and pipeline for stating pipe well are tightly connected, and lower end is closed, and multiple through-holes, the pipe well are formed on the borehole wall of the pipe well
One general pipeline of middle setting, the gas injection device and extraction device are connect with the general pipeline respectively by gas injection pipeline and extraction line；
The gas-liquid separation device is connect with the extraction line, the liquid outlet of the gas-liquid separation device and the liquid handling list
Member connection；The air inlet of the extraction device is connect with the air outlet of the gas-liquid separation device, the outlet air of the extraction device
Mouth is connect with the air processing unit.
Further, the system also includes a control device, one is respectively set on the gas injection pipeline and extraction line
Gas injection valve and extracting valve, the control device form control connection, institute with the gas injection device and extraction device respectively
The gas injection valve and extracting valve stated are used to switch the gas injection and extracting movement of the gas injection device and extraction device.
The extraction line is equipped with sample tap, for measuring pollutant in soil concentration and oxygen-containing figureofmerit.
Further, the explosion-proof precaution device being electrically connected with the control device is additionally provided in the gas-liquid separation device,
For detecting the pollutant concentration in the gas-liquid separation device；When surveyed pollutant concentration is more than set threshold value, institute
It states explosion-proof precaution device and sends out early warning, and opening and closing is executed by the control device control extraction device and gas injection device
Movement.
The suction pump for being additionally provided with fluid level controller in the gas-liquid separation device and being connected with its liquid outlet, the control
Device processed is electrically connected with the suction pump and fluid level controller respectively, and the fluid level controller is for detecting the gas-liquid point
The opening and closing of the suction pump is automatically controlled according to the liquid level that the fluid level controller detects from the liquid level in device
Movement.
In order to release alarm in time, it is additionally provided with the snorkel being communicated with the atmosphere on the extraction line, on the snorkel
One air intake valve is set, when the pollutant concentration in the gas-liquid separation device is greater than set threshold value, described in opening
Air intake valve admits air into the gas-liquid separation device.
The gas injection valve, extracting valve and air intake valve are electrically operated valve or operated pneumatic valve, and respectively with the control
Device connection processed, for automatically controlling the opening and closing of each valve.
It most preferably selects, multiple pipe wells, the general pipeline of each pipe well is distributed on contaminated site to be repaired
On be separately connected a gas injection pipeline and an extraction line, and a note is respectively set on each gas injection pipeline and extraction line
Air valve and an extracting valve, multiple gas injection pipelines are connect with a gas injection general pipeline respectively, the inlet end of the gas injection general pipeline
It is connect with the gas injection device；Multiple extraction lines are connect with an extracting general pipeline respectively, the gas-liquid separation device and institute
Extracting general pipeline connection is stated, the control device connects with each gas injection valve and extracting electric valve or pneumatic control respectively
It connects.
The control device controls the synchronization gas injection of all pipe wells and extracting acts, or a part of pipe of control
The gas injection and extracting of well act, while controlling the extracting and gas injection movement of pipe well described in another part.
The gas injection device and extraction device are blower.
Technical solution of the present invention has the advantages that
Air is injected into dirt by pipe well by gas injection devices such as blowers by A. bio- ventilation system provided by the present invention
It contaminates in soil, then stops by the aerobic respiration decomposing organic pollutant of local aerobic microbiological to promote contaminant degradation
Only into pipe well after gas injection, promotes volatile organic matter and catabolite to flow to pipe well using the barometric gradient in soil, pass through
The extraction device property of will volatilize organic matter and catabolite pass through gas-liquid by being further processed in general pipeline, extraction line extracting
Separator is handled respectively again after separating gas with liquid.Pipe well in the present invention had not only been used as gas injection well but also had been used as extracting
Well has dual function, so as to reduce the quantity of well, increases time of contact and the contact area of microorganism and air, mentions
The high degradation efficiency of microbe.It can make the volatile organic matter and drop in the contaminated soil around pipe well simultaneously
Solution product enters in pipe well, and by extraction device pump-and-treat system, cost is substantially reduced, and can reach higher efficiency.
B. it is provided with the control device for automatically controlling each valve in the present invention, is controlled automatically by setting control program
System operation, the numerical value of all instrument, the operating status of device can be checked and be controlled by the electronic curtain of PLC.Work as soil
When oxygen content in earth rises to system pre-set threshold value, automatic control device will close system, and system is out of service；
When the oxygen content in soil drops to the preset threshold value of system, control device automatically opens the note that preprogramming is set
Air valve is run with extracting valve, realizes that gas injection exchanges repeatedly with what is extracted, the pipe well in restoring area passes through pumping, note
Gas is recycled, and the contaminated site inhomogenous for subsurface picture has higher removal effect.
C. operation of the present invention is easy, and equipment is intensive and high degree of automation, and few, treatment effect is manually expended during operation
It is good, it is with strong applicability, according to the complexity of contaminated site, other devices can be increased on this basis.
Detailed description of the invention
It, below will be to needed in specific embodiment in order to illustrate more clearly of the specific embodiment of the invention
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is some embodiments of the present invention, for this field
For those of ordinary skill, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is that the bio- ventilation system structure of contaminated site reparation provided by the present invention illustrates；
Fig. 2 is that multiple pipe wells provided by the present invention are formed by ventilation system setups schematic diagram.
Description of symbols:
1- gas-liquid separation device；2- gas injection device；3- extraction device；4- air processing unit；
5- liquid-treatment unit；6- pipe well；7- general pipeline；8- gas injection pipeline；
9- extraction line；10- control device；20- gas injection valve；30- extracts valve；
The explosion-proof precaution device of 40-；50- fluid level controller；60- suction pump；70- snorkel；
80- air intake valve；90- gas injection general pipeline；100- extracts general pipeline；110- storage tank.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiment of the present invention, ordinary skill people
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
As shown in Figure 1, being set to be repaired the present invention provides a kind of bio- ventilation system for contaminated site reparation
Multiple contaminated site, including gas-liquid separation device 1, gas injection device 2, extraction device 3, air processing unit 4, liquid-treatment unit 5
With the pipe well 6 extended in contaminated soil, the upper end of pipe well 6 and pipeline are tightly connected, and lower end is closed, in the borehole wall of pipe well 6
On form multiple through-holes, this through-hole can be bar shaped seam or microcellular structure, only pass through for liquids and gases, stop soil enter
In pipe well 6, a general pipeline 7, gas injection device 2 and extraction device 3 are set in pipe well 6 and distinguished by gas injection pipeline 8 and extraction line 9
It is connect with general pipeline 7；Gas-liquid separation device 1 is connect with extraction line 9, the liquid outlet and liquid handling list of gas-liquid separation device 1
Member 5 connects；The air inlet of extraction device 3 is connect with the air outlet of gas-liquid separation device 1, the air outlet and gas of extraction device 3
Processing unit 4 connects.Here gas-liquid separation device 1 is the prior art, can be bought on the market；3 He of extraction device simultaneously
Gas injection device 2 is blower, and pipe well 6 is squeezed into the soil layer of pollution.Extraction device 3 and gas injection device 2 therein are in it always
In one working, another device be in stop state, realize extraction device 3 and gas injection device 2 alternation；This hair
Pipe well 6 in bright both plays the role of gas injection well, also functions to extraction well, substantially increases the service efficiency of pipe well 6, makes it
Efficiency performs to most preferably.The volatile organic matter and catabolite extracted enter gas-liquid separation device 1 carry out gas and
The separation of liquid, gas therein enter air processing unit and are handled, and are discharged after up to standard, liquid enters liquid-treatment unit
5 are handled, and are entered in storage tank 110 after up to standard.
Air is injected into pollution by pipe well by gas injection devices such as blowers by bio- ventilation system provided by the present invention
In soil, then by the aerobic respiration decomposing organic pollutant of local aerobic microbiological, to promote contaminant degradation, stop
Into pipe well after gas injection, promotes volatile organic matter and catabolite to flow to pipe well using the barometric gradient in soil, pass through pumping
The device property of will volatilize organic matter and catabolite are mentioned by being further processed in general pipeline, extraction line extracting, passes through gas-liquid point
It is handled respectively again after separating gas with liquid from device.Pipe well in the present invention had not only been used as gas injection well but also had been used as extracting
Well has dual function, so as to reduce the quantity of well, increases time of contact and the contact area of microorganism and air, mentions
The high degradation efficiency of microbe.It can make the volatile organic matter and drop in the contaminated soil around pipe well simultaneously
Solution product enters in pipe well, and by extraction device pump-and-treat system, cost is substantially reduced, and can reach higher efficiency.
The present invention is also provided with a control device 10 in systems, and a note is respectively set on gas injection pipeline 8 and extraction line 9
Air valve 20 and extracting valve 30, control device 10 form control connection, gas injection valve with gas injection device 2 and extraction device 3 respectively
Door 20 and extracting valve 30 are used to switch the gas injection and extracting movement of gas injection device 2 and extraction device 3.That is, when opening gas injection valve
Door 20, when closing extracting valve 30, extraction device 3 stops working, and gas injection device 2 at this time enters working condition；Conversely, when opening
Extracting valve 30 is opened, when closing gas injection valve 20, extraction device 3 at this time is in running order, and gas injection device 2 then stops work
Make.
It is equipped with sample tap on extraction line 9, for measuring pollutant in soil concentration and oxygen-containing figureofmerit, while also existing
On the discharge pipe of air processing unit, the discharge pipe of the liquid-treatment unit and inlet and outlet position of gas-liquid separation device difference
It is provided with sample tap, the concentration levels of real-time detection pollutant.
It explodes in order to avoid the gas concentration in gas-liquid separation device is excessive, the present invention is in gas-liquid separation device
The explosion-proof precaution device 40 being electrically connected with control device 10 is additionally provided in 1, it is dense for detecting the pollutant in gas-liquid separation device 1
Degree；When surveyed pollutant concentration is more than set threshold value, explosion-proof precaution device 40 sends out early warning, and passes through control device
10 control extraction devices 3 and gas injection device 2 execute switching motion, are made in advance to gas-liquid separation device according to explosion-proof precaution device 40
Early warning prevents the generation of accident.
Meanwhile the present invention is equipped with fluid level controller 50 also in gas-liquid separation device 1 and is connected with its liquid outlet
Suction pump 60, control device 10 are electrically connected with suction pump 60 and fluid level controller 50 respectively, and fluid level controller 50 is for detecting
Liquid level in gas-liquid separation device 1, according to the liquid level that fluid level controller 50 detects, control device 10, which automatically controls, to be taken out
The switching motion of water pump 60 influences the gas of gas-liquid separation device to prevent the bottom of gas-liquid separation device from collecting many liquid
Liquid separative efficiency.
Gas concentration of the present invention in order to prevent in gas-liquid separation device is excessively high, is arranged in the input terminal of gas-liquid separation device
The snorkel 70 being communicated with the atmosphere, is arranged an air intake valve 80, the pollutant in gas-liquid separation device 1 on snorkel 70
When concentration is greater than set threshold value, is admitted air into gas-liquid separation device 1 by opening air intake valve 80, gas-liquid separation is filled
Gas in setting is diluted, and reduces explosion hazard gases concentration.
Gas injection valve 20 in the present invention, extracting valve 30 and air intake valve 80 are electrically operated valve or operated pneumatic valve, and
It is connect respectively with control device 10, for automatically controlling the opening and closing of each valve, realizes replacing for gas injection and extracting in pipe well
Control action, high degree of automation.
As shown in Fig. 2, the present invention is distributed with multiple pipe wells 6 on contaminated site to be repaired, on the general pipeline 7 of each pipe well 6
It is separately connected a gas injection pipeline 8 and an extraction line 9, and a gas injection is respectively set on each gas injection pipeline 8 and extraction line 9
Valve 20 and an extracting valve 30, multiple gas injection pipelines 8 connects with a gas injection general pipeline 90 respectively, the inlet end of gas injection general pipeline 90 and
Gas injection device 2 connects；Multiple extraction lines 9 are connect with an extracting general pipeline 100 respectively, gas-liquid separation device 1 and extracting general pipeline 100
Connection, control device 10 are connected with each gas injection valve 20 and the extracting electric and pneumatic control of valve 30 respectively.Each extraction tube
Road and air injection pipe road, which are equipped with, to be automatically controlled and the valve that manually controls, to switch connection gas injection device or extracting decoration and
Adjusting gas flow.Pipe well can switch over function according to the process of renovation technique in gas injection and extracting.
Certainly, each pipe well realize gas injection and extracting during, can be selected by process control a part of well into
Row gas injection, another part well automatically switch valve mode by control device again when reaching certain condition and realize friendship as extracting
Change extracting and gas injection function.
Control device employed in the present invention is PLC program control device, automatically controls each device and valve operation,
Including extracting the automatic switchover etc. between gas injection in time switch gas injection device, extraction device, adjusting flow, pipe well.PLC journey
Sequence control device is equipped with electronic curtain, can be checked to the operating condition of whole system by electronic curtain, be controlled manually
System, change parameter etc..
It is provided with the control device for automatically controlling each valve in the present invention, procedure auto-control is controlled by setting
Operation, the numerical value of all instrument, the operating status of device can be checked and be controlled by the electronic curtain of PLC.Work as soil
In oxygen content when rising to the pre-set threshold value of system, automatic control device will close system, and system is out of service；When
When oxygen content in soil drops to system preset threshold value, control device automatically opens the gas injection that preprogramming is set
Valve is run with extracting valve, realizes that gas injection exchanges repeatedly with what is extracted, the pipe well in restoring area passes through pumping, gas injection
It is recycled, the contaminated site inhomogenous for subsurface picture has higher removal effect.
Certainly, the present invention is also provided with monitoring device in systems, is different online by installing in pipeline, device
Monitoring device carries out real-time monitoring.Sample tap is set on each pipeline simultaneously, in order to sample detection, predominantly detecting index has stream
Amount, pressure, vacuum degree, temperature, oxygen content, pollutant concentration etc..
Operation of the present invention is easy, and high treating effect is with strong applicability, can be in this base according to the complexity of contaminated site
Increase other devices on plinth.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
Variation is still in the protection scope of this invention.
Claims (10)
1. a kind of bio- ventilation system for contaminated site reparation, is set to contaminated site to be repaired, including gas-liquid separation
Device (1), gas injection device (2), extraction device (3), air processing unit (4), liquid-treatment unit (5) and extend to Polluted Soil
Pipe well (6) in earth, the upper end of the pipe well (6) and pipeline are tightly connected, and lower end is closed, on the borehole wall of the pipe well (6)
Multiple through-holes are formed, a general pipeline (7) are set in the pipe well (6), the gas injection device (2) and extraction device (3) pass through note
Air pipe (8) and extraction line (9) are connect with the general pipeline (7) respectively；The gas-liquid separation device (1) and the extraction line
(9) it connects, the liquid outlet of the gas-liquid separation device (1) is connect with the liquid-treatment unit (5)；The extraction device
(3) air inlet is connect with the air outlet of the gas-liquid separation device (1), the air outlet and the gas of the extraction device (3)
Body processing unit (4) connection.
2. the bio- ventilation system according to claim 1 for contaminated site reparation, which is characterized in that the system is also
Including a control device (10), a gas injection valve (20) and extracting are respectively set on the gas injection pipeline (8) and extraction line (9)
Valve (30), the control device (10) form control connection, institute with the gas injection device (2) and extraction device (3) respectively
The gas injection valve (20) and extracting valve (30) stated are used to switch the gas injection and pumping of the gas injection device (2) and extraction device (3)
It carries and making.
3. the bio- ventilation system according to claim 2 for contaminated site reparation, which is characterized in that the extraction tube
Road (9) is equipped with sample tap, for measuring pollutant in soil concentration and oxygen-containing figureofmerit.
4. the bio- ventilation system according to claim 3 for contaminated site reparation, which is characterized in that the gas-liquid point
From the explosion-proof precaution device (40) being electrically connected with the control device (10) is additionally provided in device (1), for detecting the gas-liquid
Pollutant concentration in separator (1)；When surveyed pollutant concentration is more than set threshold value, the explosion-proof precaution device
(40) early warning is sent out, and is opened by the control device (10) control extraction device (3) and gas injection device (2) execution
Close movement.
5. the bio- ventilation system according to claim 4 for contaminated site reparation, which is characterized in that the gas-liquid point
From the suction pump (60) for being additionally provided with fluid level controller (50) in device (1) and being connected with its liquid outlet, the control device
(10) it is electrically connected respectively with the suction pump (60) and fluid level controller (50), the fluid level controller (50) is for detecting
Liquid level in the gas-liquid separation device (1) is automatically controlled according to the liquid level that the fluid level controller (50) are detected
The switching motion of the suction pump (60).
6. the bio- ventilation system according to claim 4 for contaminated site reparation, which is characterized in that the extraction tube
It is additionally provided with the snorkel (70) being communicated with the atmosphere on road (9), an air intake valve (80) are set on the snorkel (70), when described
When pollutant concentration in gas-liquid separation device (1) is greater than set threshold value, make air by opening the air intake valve (80)
Into in the gas-liquid separation device (1).
7. the bio- ventilation system according to claim 6 for contaminated site reparation, which is characterized in that the gas injection valve
Door (20), extracting valve (30) and air intake valve (80) are electrically operated valve or operated pneumatic valve, and respectively with the control device
(10) it connects, for automatically controlling the opening and closing of each valve.
8. according to any bio- ventilation system for contaminated site reparation of claim 2-7, which is characterized in that
It repairs and multiple pipe wells (6) is distributed on contaminated site, be separately connected a note on the general pipeline (7) of each pipe well (6)
Air pipe (8) and an extraction line (9), and a gas injection is respectively set on each gas injection pipeline (8) and extraction line (9)
Valve (20) and extracting valve (30), multiple gas injection pipelines (8) connect with a gas injection general pipeline (90) respectively, the gas injection
The inlet end of general pipeline (90) is connect with the gas injection device (2)；Multiple extraction lines (9) extract general pipeline with one respectively
(100) it connects, the gas-liquid separation device (1) connect with the extracting general pipeline (100), and the control device (10) is respectively and respectively
A gas injection valve (20) and the electric and pneumatic control connection of extracting valve (30).
9. the bio- ventilation system according to claim 8 for contaminated site reparation, which is characterized in that the control dress
Set (10) and control the synchronization gas injection of all pipe wells (6) and extracting acts, or a part of pipe well of control gas injection with
Extracting movement, while controlling the extracting and gas injection movement of pipe well described in another part.
10. the bio- ventilation system according to claim 1 for contaminated site reparation, which is characterized in that the gas injection
Device (2) and extraction device (3) are blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811334531.9A CN109365519A (en) | 2018-11-09 | 2018-11-09 | A kind of bio- ventilation system for contaminated site reparation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811334531.9A CN109365519A (en) | 2018-11-09 | 2018-11-09 | A kind of bio- ventilation system for contaminated site reparation |
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| CN109365519A true CN109365519A (en) | 2019-02-22 |
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| CN201811334531.9A Pending CN109365519A (en) | 2018-11-09 | 2018-11-09 | A kind of bio- ventilation system for contaminated site reparation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110563126A (en) * | 2019-10-21 | 2019-12-13 | 上海洁壤环保科技有限公司 | System and method for repairing volatile organic compounds in underground water |
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