CN106734166A - The device of Low Temperature Plasma Treating persistent organism contaminated soil - Google Patents
The device of Low Temperature Plasma Treating persistent organism contaminated soil Download PDFInfo
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- CN106734166A CN106734166A CN201611205209.7A CN201611205209A CN106734166A CN 106734166 A CN106734166 A CN 106734166A CN 201611205209 A CN201611205209 A CN 201611205209A CN 106734166 A CN106734166 A CN 106734166A
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- reactor
- low temperature
- contaminated soil
- temperature plasma
- bull stick
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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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention belongs to organic polluted soil recovery technique field, particular content is related to a kind of device of Low Temperature Plasma Treating persistent organism contaminated soil；The device includes low temperature plasma high voltage power supply, reactor, bull stick, bleeding point and air inlet；Contaminated soil is put into reactor first, then reactor is vacuumized by bleeding point, and working gas is filled with to inside reactor by air inlet, secondly external driver device drives reactor to rotate by bull stick, contaminated soil is driven to be seethed up and down in reactor, last low temperature plasma high voltage power supply provides high-tension electricity to reactor, and plasma is produced in reactor, starts contaminated soil treatment.The present invention produces plasma physics chemical reaction using the strong oxidizing property free radical that low temperature plasma is produced with organic pollutant molecule, persistence organic pollutant can be decomposed with the efficient oxidation, persistent organism contaminated soil can be processed, treatment effeciency is high, and loading and unloading is simple, easy to operate.
Description
Technical field
The invention belongs to organic polluted soil recovery technique field, particular content is related to a kind of Low Temperature Plasma Treating to hold
The device of long property organic material contaminated soil.
Background technology
In recent years, Chinese soil pollution situation is increasingly serious, and city, rural area soil are polluted by different degrees of,
Especially pollution of the persistent organism to soil, the attention of people is increasingly caused in China, and urgent need is entered to contaminated soil
Row is repaired.
It is different from Conventional pollution, persistence organic pollutant (Persistent Organic Pollutants, POPs)
The holdup time is long in the environment, and extremely difficult degraded, complicated component, strong toxicity, and amplification can be enriched with food chain, can be by ring
Border medium carries out global migration, and significant damage is brought to human health.
Persistence organic pollutant not only has " three cause " effect (carcinogenic, teratogenesis, mutagenicity), and to system genitale
System, nervous system and immune system can all produce toxicity, and population quality or even social development are exerted far reaching influence.
The restorative procedure of current POPs contaminated soils has the connection between Physical, chemical method, bioanalysis and several method
Close.Physical and chemical restoration rehabilitation cost are high, it is not thorough to repair and easily cause secondary pollution；There is repair time in bioanalysis
The problems such as long, dominant strain is difficult to screening.
Lower temperature plasma technology is under DC Electric Field, various active particle, such as electricity to be produced by electrion
Son, the atom of excitation state, molecule and free radical etc., strong oxidizing property particle (OH, O and the O of generation3Deng) and organic pollutant molecule
There is the plasma physics chemical reaction of a series of complex, persistence organic pollutant can be decomposed with the efficient oxidation, be low temperature
A kind of new approach of lower organics removal.
The Chinese patent literature of Application No. CN201210001587.9, the organic matter in soil will be adsorbed using hot blast
Disengage, hot blast is carried organic matter and entered in reaction of low temperature plasma device by pipeline, is discharged using low-temperature plasma generator
The active particle treatment organic pollution of generation.This kind of method is only applicable to volatile organic contaminant contaminated soil, and treatment is held
The effect of long property organic pollution contaminated soil is poor.
Application No. CN201310157616.5 Chinese patent literatures, by organic material contaminated soil uniform fold in reactor
Bottom, then switches on power reactor as between electrode, and electric discharge produces low temperature plasma to be reacted with persistent pollutant
And be allowed to remove.This kind of method, because low temperature plasma active particle is only capable of being contacted with upper soll layer, be not exposed to etc. from
Must not obtain in daughter atmosphere is processed, and acting surface is small, causes process uniformity poor, and treatment effeciency is not high, poor processing effect.
The content of the invention
For above-mentioned prior art, it is an object of the invention to provide a kind of Low Temperature Plasma Treating persistent organism
The device of contaminated soil, solves the problems such as prior art is low to persistent organism contaminated soil remediation efficiency, and effect is poor
In order to achieve the above object, the present invention uses following technical scheme.
It is an object of the invention to provide a kind of device of Low Temperature Plasma Treating persistent organism contaminated soil, bag
Include：Low temperature plasma high voltage power supply, reactor, bull stick, bleeding point and air inlet；
The low temperature plasma high voltage power supply provides high-tension electricity to reactor, for producing plasma in reactor
Body；
Reactor both sides set bleeding point and air inlet, reactor is vacuumized by bleeding point, and by air inlet to
Inside reactor is filled with working gas；
Reactor sets bull stick, and bull stick is connected with external driver device, and external driver device drives reactor by bull stick
Rotate.
Further, contaminated soil is put into reactor first；
Then reactor is vacuumized by bleeding point, and working gas is filled with to inside reactor by air inlet；
Secondly external driver device drives reactor to rotate by bull stick, drives contaminated soil to be turned over up and down in reactor
Rise；
Last low temperature plasma high voltage power supply provides high-tension electricity to reactor, and plasma is produced in reactor, opens
The treatment of beginning contaminated soil.
Further, the reactor is cylindrical tube shape container, and the barrel of reactor is insulating materials polytetrafluoroethylene (PTFE), reaction
The two ends of device are fixedly installed high-field electrode and earth electrode, and the high-field electrode is by wire and low temperature plasma high-tension electricity
Source connects, and earth electrode passes through wired earth.
Further, the reactor diameter is 200mm~300mm, and the high-field electrode and earth electrode use stainless steel
Or copper product is made, the distance between high-field electrode and earth electrode is 70mm~90mm.
Further, on the inwall of the reactor, it is to a plurality of baffle plate, the baffle plate is fixedly installed along reactor axis
Elongated plates, a plurality of baffle plate is uniformly arranged in reactor, and baffle plate causes reactor when around its axial-rotation, and drive is contained in
Contaminated soil motion in reactor.
Further, the bull stick is cylindrical shape, is arranged on reactor both sides, is made up of polytetrafluoroethylmaterial material, bull stick
The axis collinear of axis and reactor；The bull stick can drive reactor to rotate under the driving of external motive device.
Further, two free ends of the bull stick form respectively bleeding point and air inlet, by the bleeding point energy
Enough vacuumize, and working gas is filled with to inside reactor by air inlet.
Further, the working gas is inert gas.
Further, the working gas is argon gas, helium and nitrogen.
The beneficial effect that technical scheme provided in an embodiment of the present invention is brought is：
A kind of device of Low Temperature Plasma Treating persistent organism contaminated soil of the present invention, ties compared with prior art
Structure is simple, and reactor interior energy is vacuumized and can quantify input service gas, applies electric field and produces low temperature plasma.By reaction
The rotation of device, drive soil seethe up and down, soil surface is tried one's best in low temperature plasma atmosphere, using low temperature etc. from
The strong oxidizing property free radical that daughter is produced produces the plasma physics chemical reaction of a series of complex with organic pollutant molecule,
Persistence organic pollutant can be decomposed with the efficient oxidation, can uniform treatment persistent organism contaminated soil, treatment effeciency is high,
And loading and unloading is simple, easy to operate.
Brief description of the drawings
Fig. 1 is a kind of schematic device of Low Temperature Plasma Treating persistent organism contaminated soil of the invention；
Fig. 2 is that a kind of reactor of the device of Low Temperature Plasma Treating persistent organism contaminated soil of the invention is illustrated
Figure；
In figure：1- low temperature plasma high voltage power supplies；2- reactors；3- bull sticks；4- bleeding points；5- air inlets；6- barrels；
7- high-field electrodes；8- earth electrodes；9- baffle plates.
Specific embodiment
It is dirty to a kind of Low Temperature Plasma Treating persistent organism of the invention with reference to the accompanying drawings and detailed description
The device for contaminating soil elaborates.
As depicted in figs. 1 and 2, the device of a kind of Low Temperature Plasma Treating persistent organism contaminated soil of the invention,
Including low temperature plasma high voltage power supply 1, reactor 2, bull stick 3, bleeding point 4 and air inlet 5；
The low temperature plasma high voltage power supply 1 provides high-tension electricity to reactor 2, for produce in the reactor 2 etc. from
Daughter；
The both sides of reactor 2 set bleeding point 4 and air inlet 5, and reactor 2 is vacuumized by bleeding point 4, and by air inlet
Mouthfuls 5 inside reactor 2 to being filled with working gas；
Reactor 2 sets bull stick 3, and bull stick 3 is connected with external driver device, and external driver device is driven instead by bull stick 3
Device 2 is answered to rotate；
Contaminated soil is put into reactor 2 first；Then reactor 2 is vacuumized by bleeding point 4, and by air inlet
Mouthfuls 5 inside reactor 2 to being filled with working gas；Secondly external driver device drives reactor 2 to rotate by bull stick 3；It is finally low
Isothermal plasma high voltage power supply 1 provides high-tension electricity to reactor 2, and plasma is produced in reactor 2, starts at contaminated soil
Reason；Seethed up and down in reactor 2 by the contaminated soil that rotarily drives of reactor 2, contaminated soil surface is fully exposed to low
In isothermal plasma atmosphere, the strong oxidizing property free radical produced using low temperature plasma is divided with organic pollution in contaminated soil
Son produces the plasma physics chemical reaction of a series of complex, the efficient oxidation to decompose persistence organic pollutant.
The reactor 2 is cylindrical tube shape container, and a diameter of 200mm~300mm, the barrel 6 of reactor 2 is insulating materials
Polytetrafluoroethylene (PTFE), the two ends of reactor 2 are fixedly installed high-field electrode 7 and earth electrode 8, the high-field electrode 7 and ground connection electricity
Pole 8 is made of metal materials such as stainless steel plate or copper coins, and the distance between high-field electrode 7 and earth electrode 8 is 70~90mm,
The high-field electrode 7 is connected by wire with low temperature plasma high voltage power supply 1, and earth electrode 8 passes through wired earth.
On the inwall of the reactor 2, the axial restraint of reactor 2 is provided with a plurality of baffle plate 9, the baffle plate 9 is length
Stripe board, a plurality of baffle plate 9 is uniformly arranged in reactor 2, and baffle plate 9 causes that reactor 2 when around its axial-rotation, can drive
The soil movement in reactor 2 is contained in, so that soil is seethed up and down, can be by uniform treatment.
The bull stick 3 is arranged on the both sides of reactor 2 for cylindrical shape, is made up of polytetrafluoroethylmaterial material, the axis of bull stick 3 with
The axis collinear of reactor 2；The bull stick 3 can drive reactor 2 to rotate under the driving of external motive device；
Two free ends of the bull stick 3 form respectively bleeding point 4 and air inlet 5, can be taken out by the bleeding point 4
Vacuum, and can be by air inlet 5 to being filled with working gas inside reactor 2.
The inert gases such as the working gas is argon gas, helium and nitrogen.
Claims (9)
1. a kind of device of Low Temperature Plasma Treating persistent organism contaminated soil, it is characterised in that the device includes：It is low
Isothermal plasma high voltage power supply, reactor, bull stick, bleeding point and air inlet；
The low temperature plasma high voltage power supply provides high-tension electricity to reactor, for producing plasma in reactor；
Reactor both sides set bleeding point and air inlet, and reactor is vacuumized by bleeding point, and by air inlet to reaction
Working gas is filled with inside device；
Reactor sets bull stick, and bull stick is connected with external driver device, and external driver device drives reactor to rotate by bull stick.
2. the device of a kind of Low Temperature Plasma Treating persistent organism contaminated soil according to claim 1, it is special
Levy and be：
Contaminated soil is put into reactor first；
Then reactor is vacuumized by bleeding point, and working gas is filled with to inside reactor by air inlet；
Secondly external driver device drives reactor to rotate by bull stick, drives contaminated soil to be seethed up and down in reactor；
Last low temperature plasma high voltage power supply provides high-tension electricity to reactor, and plasma is produced in reactor, starts dirty
Dye soil treatment.
3. the device of a kind of Low Temperature Plasma Treating persistent organism contaminated soil according to claim 1, it is special
Levy and be：The reactor is cylindrical tube shape container, and the barrel of reactor is insulating materials polytetrafluoroethylene (PTFE), the two ends of reactor
High-field electrode and earth electrode are fixedly installed, the high-field electrode is connected by wire with low temperature plasma high voltage power supply,
Earth electrode passes through wired earth.
4. the device of a kind of Low Temperature Plasma Treating persistent organism contaminated soil according to claim 3, it is special
Levy and be：The reactor diameter is 200mm~300mm, and the high-field electrode and earth electrode use stainless steel or copper material
Material is made, and the distance between high-field electrode and earth electrode is 70mm~90mm.
5. the device of a kind of Low Temperature Plasma Treating persistent organism contaminated soil according to claim 1 or 3, its
It is characterised by：On the inwall of the reactor, along reactor axis to a plurality of baffle plate is fixedly installed, the baffle plate is strip
Plate, a plurality of baffle plate is uniformly arranged in reactor, and baffle plate causes reactor when around its axial-rotation, and drive is contained in reactor
Interior contaminated soil motion.
6. the device of a kind of Low Temperature Plasma Treating persistent organism contaminated soil according to claim 1, it is special
Levy and be：The bull stick for cylindrical shape, be arranged on reactor both sides, be made up of polytetrafluoroethylmaterial material, the axis of bull stick with it is anti-
Answer the axis collinear of device；The bull stick can drive reactor to rotate under the driving of external motive device.
7. the device of a kind of Low Temperature Plasma Treating persistent organism contaminated soil according to claim 6, it is special
Levy and be：Two free ends of the bull stick form respectively bleeding point and air inlet, can be vacuumized by the bleeding point,
And working gas is filled with to inside reactor by air inlet.
8. the device of a kind of Low Temperature Plasma Treating persistent organism contaminated soil according to claim 1, it is special
Levy and be：The working gas is inert gas.
9. the device of a kind of Low Temperature Plasma Treating persistent organism contaminated soil according to claim 8, it is special
Levy and be：The working gas is argon gas, helium and nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611205209.7A CN106734166A (en) | 2016-12-23 | 2016-12-23 | The device of Low Temperature Plasma Treating persistent organism contaminated soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611205209.7A CN106734166A (en) | 2016-12-23 | 2016-12-23 | The device of Low Temperature Plasma Treating persistent organism contaminated soil |
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| CN106734166A true CN106734166A (en) | 2017-05-31 |
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ID=58918895
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|---|---|---|---|
| CN201611205209.7A Pending CN106734166A (en) | 2016-12-23 | 2016-12-23 | The device of Low Temperature Plasma Treating persistent organism contaminated soil |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107617636A (en) * | 2017-10-24 | 2018-01-23 | 龙净科杰环保技术（上海）有限公司 | Screw type low-temperature plasma soil remediation method and device |
| CN112547787A (en) * | 2020-11-25 | 2021-03-26 | 合肥学院 | Portable plasma device and method for repairing polluted soil |
| CN113877951A (en) * | 2021-07-21 | 2022-01-04 | 沈阳工业大学 | Device of pesticide in rotation type low temperature plasma degradation soil |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107617636A (en) * | 2017-10-24 | 2018-01-23 | 龙净科杰环保技术（上海）有限公司 | Screw type low-temperature plasma soil remediation method and device |
| CN112547787A (en) * | 2020-11-25 | 2021-03-26 | 合肥学院 | Portable plasma device and method for repairing polluted soil |
| CN112547787B (en) * | 2020-11-25 | 2022-03-11 | 合肥学院 | Portable plasma device and method for repairing polluted soil |
| CN113877951A (en) * | 2021-07-21 | 2022-01-04 | 沈阳工业大学 | Device of pesticide in rotation type low temperature plasma degradation soil |
| CN113877951B (en) * | 2021-07-21 | 2024-03-05 | 沈阳工业大学 | Device of pesticide in rotation type low temperature plasma degradation soil |
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