CN110479751A - A kind of prosthetic device and restorative procedure of soil organic pollutant - Google Patents
A kind of prosthetic device and restorative procedure of soil organic pollutant Download PDFInfo
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- CN110479751A CN110479751A CN201910867781.7A CN201910867781A CN110479751A CN 110479751 A CN110479751 A CN 110479751A CN 201910867781 A CN201910867781 A CN 201910867781A CN 110479751 A CN110479751 A CN 110479751A
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- Prior art keywords
- soil
- bath
- air
- pot body
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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
- B09C1/06—Reclamation of contaminated soil thermally
- B09C1/062—Reclamation of contaminated soil thermally by using electrode or resistance heating elements
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- Physics & Mathematics (AREA)
- Thermal Sciences (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 discloses a kind of prosthetic devices of soil organic pollutant, including air steel cylinder, mass flowmenter, water-bath, surge flask, spinner flowmeter, hygrometer and the dielectric impedance reactor being sequentially connected；The present invention first carries out soil rising in water-bath, then the organic exhaust gas in the soil after transpiration is entered in flue gas leading by air guide channel, it enters in surge flask and is buffered, then into dielectric impedance reactor, organic exhaust gas is purified under the action of high-voltage electricity.
Description
Technical field
The present invention relates to soil remediation fields, a kind of prosthetic device more specifically to soil organic pollutant and
Restorative procedure.
Background technique
As content of organics in soil it is excessively high caused by soil pollution be known as soil organic contamination, organic contamination in soil
Object can be divided by dissolubility difficulty or ease as two classes: easily decomposition class, such as: organophosphorus pesticide, trichloroacetaldehyde；Hardly possible decomposes class, such as: organochlorine
Deng；Some organic pollutants biology and it is abiotic, especially under the action of microorganism, innocuous substance can be converted into, but still
There is quite a few, be not easy to convert, causes crop production reduction, and remain in plant, become plant residual hazard；
Due to the burning of fossil fuel, the leakage of petroleum, trade effluent and sludge agricultural, industrial or agricultural solid waste stacking with
And pesticide is widely used, and causes the organic pollutants such as phthalic acid ester, polycyclic aromatic hydrocarbon, organochlorine and organophosphorus pesticide direct
Or enter soil environment indirectly, and remain in soil for a long time because of fat-soluble easily adsorbed by soil particle；These organic matters
In to have be much carcinogenic, teratogenesis or mutagenic matter, retaining in soil can not only make crop production reduction even have no harvest, but also
Food chain can also be entered by plant or animal, be seriously affected to human survival and health care belt；
Due to the quickening of China's industrialization and urbanization process, pollutant is largely discharged, and causes serious soil pollution, wherein
Organic contamination in soil is the principal mode of another soil pollution except heavy metal pollution removing, for organic contamination soil
Earth, traditional physics, chemistry, biology and plant soil recovery technique generate secondary pollution since it is respectively provided with, need to add
Chemical agent handles the limitations such as organism kinds are limited and repairing efficiency is long and is difficult to meet green, efficient, quick soil
Repair purpose.
Summary of the invention
1. technical problems to be solved
For the problem of soil remediation effect difference existing in the prior art, the purpose of the present invention is to provide a kind of soil is organic
The prosthetic device and restorative procedure of pollutant, it may be implemented efficiently to repair soil, and carry out to the exhaust gas of generation
It is discharged into atmosphere after purification.
2. technical solution
To solve the above problems, the present invention adopts the following technical scheme that.
A kind of prosthetic device of soil organic pollutant, including air steel cylinder, the mass flowmenter, water-bath being sequentially connected
Pot, surge flask, spinner flowmeter, hygrometer and dielectric impedance reactor.
Preferably, the water-bath includes pot body and heating device, and the heating device is located at below pot body, described
Pot nside be placed with thermal conduction of soil case, the pot body is made of heat preserving and insulating material；
The thermal conduction of soil case lower surface is fixedly connected by several heat conductive rods with water-bath inner bottom surface；
Several partitions are provided in the water-bath, the partition lower surface is connected with one end of several heat conducting bars,
Thermal conduction of soil case, partition, heat conductive rod and the heat conducting bar is made of thermal conductive metallic material；
The partition is internally provided with gas passage, and the heat conducting bar is internally provided with air guide channel, and heat conducting bar side is opened
Equipped with several ventholes, venthole is connected to air guide channel, and air guide channel is connected to gas passage；
The enclosure interior of thermal conduction of soil case is provided with exhaust steam passage, and exhaust steam passage is connected to gas passage, and exhaust steam passage connection is useless
The other end of one end of tracheae, flue gas leading connects after pot body with surge flask；
It further include air blast pump and humidifier tube, the air blast pump is located on humidifier tube, is connected to above one end of humidifier tube and pot body,
The other end is connected with the flue gas leading outside pot body.
Preferably, the top of the surge flask is connected with flue gas leading, and bottom end side is connected with one end of escape pipe；
Several buffer dividing plates, one end of the buffer dividing plate and the fixed company of surge flask inner wall are provided in the surge flask
It connects, the buffer channel formed between several buffer dividing plates is S type, and the other end of escape pipe is connected with dielectric impedance reactor.
Preferably, the dielectric impedance reactor includes explosion-resistant enclosure and reaction tube, described two phases of explosion-resistant enclosure
Pair side insertion be connected with radiator fan；
It the ring flange that the reaction tube is arranged by both ends and is fixedly connected inside explosion-resistant enclosure, reaction tube side is provided with spiral shell
The external electrode for revolving shape, is internally provided with interior electrode, the inner and outer electrodes are electrically connected high voltage power supply；
The other end of the escape pipe is connected through explosion-resistant enclosure with one end of reaction tube, the other end and purification pipe of reaction tube
One end connection, the other end for purifying pipe extends outwardly through explosion-resistant enclosure.
Preferably, the interior electrode is made of several electrode bars, is provided with several bees on electrode bar at equal intervals
The metal ball-collecting rack of nest shape, metal ball-collecting rack is interior to be filled with catalyst.
Preferably, restorative procedure is,
Soil to be repaired is placed in water-bath by the first step, by heating device electric connection of power supply；
Inner and outer electrodes are electrically connected high voltage power supply by second step；
Third step, by radiator fan electric connection of power supply.
It preferably, further include air steel cylinder and mass flowmenter, the air steel cylinder is connected by air hose and water-bath
It connects, is connected with mass flowmenter on the air hose；The partition upper surface is provided with air inlet lines, the air into
Pipe is connected with air hose
3. beneficial effect
Compared with the prior art, it the present invention has the advantages that soil is carried out transpiration by the present invention in water-bath first, then steams
The organic exhaust gas in soil after rising is entered in flue gas leading by air guide channel, is entered in surge flask and is buffered, then
It enters in dielectric impedance reactor, organic exhaust gas is purified under the action of high-voltage electricity.
Detailed description of the invention
Fig. 1 is structural schematic block diagram of the invention；
Fig. 2 is the structural schematic diagram of water-bath of the present invention；
Fig. 3 is enlarged drawing at A in Fig. 2 of the present invention；
Fig. 4 is surge flask structural schematic diagram of the invention；
Fig. 5 is the structural schematic diagram that present media stops reactor；
Fig. 6 is the structural schematic diagram of electrode in the present invention.
Figure label explanation:
1, air steel cylinder；2, mass flowmenter；3, water-bath；4, surge flask；5, spinner flowmeter；6, hygrometer；7, medium hinders
Keep off reactor；8, pot body；9, heating device；10, thermal conduction of soil case；11, heat conductive rod；12, separate；13, heat conducting bar；14, gas
Channel；15, air guide channel；16, venthole；17, exhaust steam passage；18, flue gas leading；19, air blast pumps；20, humidifier tube；21, outlet
Pipe；22, buffer dividing plate；23, buffer channel；24, explosion-resistant enclosure；25, reaction tube；26, radiator fan；27, ring flange；28, outer
Electrode；29, interior electrode；30, purification pipe；31, electrode bar；32, metal ball-collecting rack.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention；Technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description；Obviously；Described embodiments are only a part of the embodiments of the present invention；Instead of all the embodiments.It is based on
Embodiment in the present invention；It is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment；It shall fall within the protection scope of the present invention.
Please refer to Fig. 1-6, a kind of prosthetic device of soil organic pollutant, including be sequentially connected air steel cylinder 1, quality
Flowmeter 2, water-bath 3, surge flask 4, spinner flowmeter 5, hygrometer 6 and dielectric impedance reactor 7.
Water-bath 3 includes pot body 8 and heating device 9, and heating device 9 is located at 8 lower section of pot body, is placed with soil inside pot body 8
The thermally conductive case 10 of earth, pot body 8 are made of heat preserving and insulating material；
10 lower surface of thermal conduction of soil case is fixedly connected by several heat conductive rods 11 with 3 inner bottom surface of water-bath；
Several partitions 12 are provided in water-bath 3,12 lower surfaces of partition are connected with one end of several heat conducting bars 13, and soil is led
Hot tank 10, partition 12, heat conductive rod 11 and heat conducting bar 13 are made of thermal conductive metallic material；
Partition 12 is internally provided with gas passage 14, and heat conducting bar 13 is internally provided with air guide channel 15, and 13 side of heat conducting bar opens up
There are several ventholes 16, venthole 16 is connected to air guide channel 15, and air guide channel 15 is connected to gas passage 14；
The enclosure interior of thermal conduction of soil case 10 is provided with exhaust steam passage 17, and exhaust steam passage 17 is connected to gas passage 14, and exhaust gas is logical
Road 17 connects one end of flue gas leading 18, and the other end of flue gas leading 18 connects after pot body 8 with surge flask 4；
It further include air blast pump 19 and humidifier tube 20, air blast pump 19 is located on humidifier tube 20,8 top of one end and pot body of humidifier tube 20
Connection, the other end and the flue gas leading 18 outside pot body 8 connect.
The top of surge flask 4 and flue gas leading 18 connect, and bottom end side is connected with one end of escape pipe 21；
Several buffer dividing plates 22 are provided in surge flask 4, one end of buffer dividing plate 22 is fixedly connected with 4 inner wall of surge flask, if
The buffer channel 23 formed between dry buffer dividing plate 22 is S type, and the other end and dielectric impedance reactor 7 of escape pipe 21 connect
It connects.
Dielectric impedance reactor 7 includes explosion-resistant enclosure 24 and reaction tube 25, explosion-resistant enclosure 24 two opposite side insertions
It is connected with radiator fan 26；
It the ring flange 27 that reaction tube 25 is arranged by both ends and is fixedly connected inside explosion-resistant enclosure 24,25 side of reaction tube is provided with
Spiral helicine external electrode 28, is internally provided with interior electrode 29, and interior electrode 29 and external electrode 28 are electrically connected high voltage power supply；
The other end of escape pipe 21 is connected through explosion-resistant enclosure 24 with one end of reaction tube 25, the other end of reaction tube 25 and purification
One end of pipe 30 connects, and the other end of purification pipe 30 is extended outwardly through explosion-resistant enclosure 24.
Interior electrode 29 is made of several electrode bars 31, is provided with several cellular gold on electrode bar 31 at equal intervals
Belong to ball-collecting rack 32, is filled with catalyst in metal ball-collecting rack 32.
Its restorative procedure is,
Soil to be repaired is placed in water-bath 3 by the first step, by 9 electric connection of power supply of heating device；
Interior electrode 29 and external electrode 28 are electrically connected high voltage power supply by second step；
Third step, by 26 electric connection of power supply of radiator fan.
It further include air steel cylinder 1 and mass flowmenter 2, air steel cylinder 1 is connected by air hose and water-bath 3, air hose
On be connected with mass flowmenter 2；Separate 12 upper surfaces and be provided with air inlet lines, air inlet lines are connected with air hose, pass through air
The effect of steel cylinder 1 can blow afloat from top to bottom the soil in partition, so that the organic exhaust gas inside soil be made to be discharged
More thoroughly.
Working principle:
Soil to be repaired is placed in the partition of the thermal conduction of soil case in water-bath 3 by the first step, and heating device 9 is electrically connected
Connect power supply；Start air blast pump simultaneously, and full catalyst will be filled in metal ball-collecting rack；
Interior electrode 29 and external electrode 28 are electrically connected high voltage power supply by second step；The present apparatus is when starting to work, in water-bath
Water temperature gradually rise, temperature thermal conduction of soil case made of thermal conductive metallic material enters in partition, then passes through partition
Heat conducting bar is passed to, heat can be made to enter inside soil in this way, at the same time, the effect of heat conductive rod is on the one hand
Thermally conductive effect is played, on the other hand by supporting thermal conduction of soil case to add to allow the bottom surface of thermal conduction of soil case also can be thermally conductive
The thermally conductive process of speed, at the same time, the organic exhaust gas generated inside soil can be entered in air guide channel by venthole, into
And gas passage is entered, it is then discharged from flue gas leading, is pumped during discharge by air blast and produce water-bath inside upper surface
Raw vapor, which enters to extract, to be added in organic exhaust gas, because the humidity of organic exhaust gas reaches certain condition, rear
Clean-up effect is best in the dielectric impedance reactor in face, cannot be too high, can not be too low, is detected when humidity is larger by hygrometer
After coming, by the amount for adjusting the valve regulated vapor on humidifier tube；
Exhaust gas enters in surge flask through flue gas leading, as shown in figure 4, can reduce the speed of exhaust gas by the buffer channel of S type,
It is detected and is adjusted by spinner flowmeter, so that the speed of organic exhaust gas be made to keep in a certain range, preventing because of exhaust gas
Excessive velocities lead to dielectric impedance reactor for treatment inefficiency；
Third step, by 26 electric connection of power supply of radiator fan；It, can be effectively and comprehensive by being provided with metal ball-collecting rack on electrode bar
To exhaust gas carry out purified treatment, at the same time, the heat generated in decontamination process is quickly dissipated by radiator fan
Heat.
Interior electrode is made of several electrode bars, as shown in fig. 6, be placed into reaction tube by interior electrode at array,
Energy utilization efficiency can be effectively improved；The interior electrode firing potential of array is minimum, is more advantageous to plasmarized
Learn the progress of reaction, the removal suitable for volatile organic contaminant；In array stick electrode structure, electrode bar spacing is got over
Small, capacity usage ratio is higher；The discharge air-gap equivalent capacity of stick electrode increases with the raising of voltage in concussion form, more conducively
The progress of electric discharge and raising working efficiency；On electrode bar be arranged honeycomb metal ball-collecting rack, this device be for catalyst filling,
Catalyst can be filled into here, and not interfere with its ability to conduct electricity, in addition, plasma discharge also has catalyst
Certain activation improves its catalytic performance, is more conducive to degradation exhaust gas；Every endways electrode bar and it is uppermost directly
The metal bar for connecing high-field electrode can separate, and be convenient to the catalyst filling in later period；
Low temperature plasma is otherwise known as nonequilibrium plasma, refer to by gas or liquid electric discharge generate containing electronics,
Positively charged heavy ion, strong electrical field, impact involve in the plasma system of various free radicals, and the high electron density of temperature is lower,
It is less with heavy particle collision chance, keep the heavy particle kinetic energy to play a decisive role to system temperature and high-temperature electronic difference larger, it is whole
A system temperature is lower, and this technology is claimed due to not needing and in addition adding chemical agent and can generate in situ various active particles
For " green technique ", and it is increasingly becoming pollutant control field and grinds the hot spot to make internal disorder or usurp,
Lower temperature plasma technology has the characteristics that process flow is short, high-efficient, low energy consumption, secondary pollution is few, applied widely,
Plasma is the admixture of electronics, negative ions, excited atom, atom and free radical, the state master of plasma
The physical chemistry parameters such as its chemical component, particle density and particle temperature are depended on, wherein the density and temperature of particle are
Two most basic parameters of plasma, in plasma environment, various chemical reactions are carried out under highly excited level
, it is more than active particle type caused by common chemical reaction, activity is stronger, is easier to and the pollutant hair in exhaust gas
Raw reaction, decomposes contaminant molecule within a short period of time, to achieve the purpose that degradation of contaminant.
It is described above；It is merely preferred embodiments of the present invention；But scope of protection of the present invention is not limited thereto；
Anyone skilled in the art is in the technical scope disclosed by the present invention；According to the technique and scheme of the present invention and its
It improves design and is subject to equivalent substitution or change；It should be covered by the scope of protection of the present invention.
Claims (7)
1. a kind of prosthetic device of soil organic pollutant, it is characterised in that: including being sequentially connected water-bath (3), surge flask
(4), spinner flowmeter (5), hygrometer (6) and dielectric impedance reactor (7).
2. a kind of prosthetic device of soil organic pollutant according to claim 1, it is characterised in that: the water-bath
It (3) include pot body (8) and heating device (9), the heating device (9) is located at below pot body (8), in the pot body (8)
Portion is placed with thermal conduction of soil case (10), and the pot body (8) is made of heat preserving and insulating material；
Thermal conduction of soil case (10) lower surface is fixedly connected by several heat conductive rods (11) with water-bath (3) inner bottom surface；
Several partitions (12) are provided in the water-bath (3), the partition (12) lower surface is connected with several and leads
One end of hot rod (13), the thermal conduction of soil case (10), partition (12), heat conductive rod (11) and heat conducting bar (13) are by thermally conductive gold
Belong to material to be made；
The partition (12) is internally provided with gas passage (14), and the heat conducting bar (13) is internally provided with air guide channel
(15), heat conducting bar (13) side offers several ventholes (16), and venthole (16) is connected to air guide channel (15), and air guide is logical
Road (15) is connected to gas passage (14)；
The enclosure interior of thermal conduction of soil case (10) is provided with exhaust steam passage (17), and exhaust steam passage (17) and gas passage (14) are even
Logical, exhaust steam passage (17) connects the one end of flue gas leading (18), the other end of flue gas leading (18) through pot body (8) afterwards and surge flask
(4) it connects；
It further include air blast pump (19) and humidifier tube (20), the air blast pump (19) is located on humidifier tube (20), humidifier tube (20)
One end and pot body (8) above be connected to, the other end and be located at pot body (8) outer flue gas leading (18) and connect.
3. a kind of prosthetic device of soil organic pollutant according to claim 1 or 2, it is characterised in that: described is slow
Top and flue gas leading (18) connection of bottle (4) are rushed, bottom end side is connected with the one end of escape pipe (21)；
Several buffer dividing plates (22), one end of the buffer dividing plate (22) and buffering are provided in the surge flask (4)
Bottle (4) inner wall is fixedly connected, and the buffer channel (23) formed between several buffer dividing plates (22) is S type, escape pipe (21)
The other end and dielectric impedance reactor (7) connection.
4. a kind of prosthetic device of soil organic pollutant according to claim 3, it is characterised in that: the medium resistance
Gear reactor (7) includes explosion-resistant enclosure (24) and reaction tube (25), described (24) the two opposite side insertions of explosion-resistant enclosure
It is connected with radiator fan (26)；
The ring flange (27) that the reaction tube (25) is arranged by both ends and explosion-resistant enclosure (24) inside are fixedly connected, reaction tube
(25) side is provided with spiral helicine external electrode (28), is internally provided with interior electrode (29), the interior electrode (29) and dispatch from foreign news agency
Pole (28) is electrically connected high voltage power supply；
The other end of the escape pipe (21) is connected through explosion-resistant enclosure (24) with one end of reaction tube (25), reaction tube (25)
The other end with purification pipe (30) one end connect, purification pipe (30) the other end run through explosion-resistant enclosure (24) extend outwardly.
5. a kind of prosthetic device of soil organic pollutant according to claim 4, it is characterised in that: the interior electrode
(29) it is made of several electrode bars (31), is provided with several cellular metal ball-collecting racks on electrode bar (31) at equal intervals
(32), catalyst is filled in metal ball-collecting rack (32).
6. a kind of prosthetic device of soil organic pollutant according to claim 1, it is characterised in that: its restorative procedure
For,
Soil to be repaired is placed in water-bath (3) by the first step, by heating device (9) electric connection of power supply；
Interior electrode (29) and external electrode (28) are electrically connected high voltage power supply by second step；
Third step, by radiator fan (26) electric connection of power supply.
7. a kind of prosthetic device of soil organic pollutant according to claim 2, it is characterised in that: further include air steel
Bottle (1) and mass flowmenter (2), the air steel cylinder (1) are connected by air hose and water-bath (3), the air hose
On be connected with mass flowmenter (2)；Described partition (12) upper surface is provided with air inlet lines, the air inlet lines and air
Pipe connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910867781.7A CN110479751A (en) | 2019-09-14 | 2019-09-14 | A kind of prosthetic device and restorative procedure of soil organic pollutant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910867781.7A CN110479751A (en) | 2019-09-14 | 2019-09-14 | A kind of prosthetic device and restorative procedure of soil organic pollutant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110479751A true CN110479751A (en) | 2019-11-22 |
Family
ID=68557983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910867781.7A Withdrawn CN110479751A (en) | 2019-09-14 | 2019-09-14 | A kind of prosthetic device and restorative procedure of soil organic pollutant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110479751A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113477693A (en) * | 2021-07-09 | 2021-10-08 | 吉林大学 | In-situ electric heating desorption method for soil organic pollutants |
| CN116651917A (en) * | 2023-05-31 | 2023-08-29 | 生态环境部南京环境科学研究所 | Integrated organic matter contaminated soil restoration equipment and restoration method |
-
2019
- 2019-09-14 CN CN201910867781.7A patent/CN110479751A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113477693A (en) * | 2021-07-09 | 2021-10-08 | 吉林大学 | In-situ electric heating desorption method for soil organic pollutants |
| CN116651917A (en) * | 2023-05-31 | 2023-08-29 | 生态环境部南京环境科学研究所 | Integrated organic matter contaminated soil restoration equipment and restoration method |
| CN116651917B (en) * | 2023-05-31 | 2024-05-14 | 生态环境部南京环境科学研究所 | Integrated organic matter contaminated soil restoration equipment and restoration method |
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Application publication date: 20191122 |
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