CN209222871U - A kind of situ heat treatment, gas phase extracting and permeable reactive barrier joint renovation of organic pollution soil device - Google Patents

Abstract

The utility model is the device of a kind of situ heat treatment, gas phase extracting and permeable reactive barrier joint renovation of organic pollution soil, including in-situ heat component, gas phase extracting component and permeable reactive barrier component；The in-situ heat component includes several electromagnetic heating components pierced in contaminated soil region, the gas phase extracting component includes the gas gathering mask for covering contaminated soil region, the gas pipeline is controlled to a vacuum pump, the vacuum pump is connect with the organic matter treating apparatus, and the permeable reactive barrier component includes reaction stake and the divider wall of several cylindrical bodies along the setting of contaminated soil pollutant transport direction.The utility model concentrates in-situ heat component, gas phase extracting component and permeable reactive barrier to carry out joint disposal in organic polluted soil region, it prevents so that organic pollutant further migrates in the soil, effectively control pollution range, it is easy to maintain, also avoid secondary pollution, application prospect is wide, can be for a long time in contaminated soil normal service.

Description

A kind of situ heat treatment, gas phase extracting and permeable reactive barrier joint repair organic dirt Contaminate the device of soil

Technical field

The utility model relates to a kind of restorative procedure of organic polluted soil and prosthetic devices, more particularly to a kind of original position The device of heat treatment, gas phase extracting and permeable reactive barrier joint renovation of organic pollution soil.

Background technique

The pollutant that soil pollution refers to that mankind's activity generates enters soil, so that soil environment quality has occurred and that or can It can deteriorate, the generation of biology, water body, air or/and human health be endangered or possible harmful.The risk master of soil pollution Include: that Farmland contamination influences agricultural product quality, influences crop growth, cause the underproduction；Endanger Living environment safety of human being, house, Commercially, the soil pollution of the construction lands such as industry may endanger people residence by being orally ingested, breathing the modes such as sucking and skin contact Environmental security；Threaten ecological environment security.The life of soil pollution influence plant, animal (such as earthworm) and microorganism (such as rhizobium) Long and procreation, jeopardizes normal soil ecological process and Ecosystem Service, is unfavorable for Soil Nutrient Transformation and fertility is kept, shadow Ring the normal function of soil.China's soil environment situation totally allows of no optimist, and the national total exceeding standard rate of soil is up to 16.1%, wherein gently Micro-, slight, moderate and serious pollution point ratio are respectively 11.2%, 2.3%, 1.5% and 1.1%, serious soil pollution area Up to 320, about 5,480,000 hectares.Therefore, China be faced with some areas soil pollution is heavier, arable soil environmental quality causes anxiety, The problems such as industry and mining discarded ground soil environment outstanding problem, are badly in need of a kind of technical solution of effective soil pollution.

The technical principle of contaminated soil remediation may include are as follows: (1) changes pollutant existing forms in the soil or with soil The combination of earth reduces its transportable property and bioavailability in the environment；(2) reduce soil in harmful substance it is dense Degree.CN200780014195.3 discloses a kind of be used for after heat treating process in situ in subsurface formations at least part The method for forming shielded layer around area is managed, specifically discloses and sulphur is added in one or more treatment region boundaries being located in stratum Wellhole in；Solidify sulphur in the earth formation than the low-melting stratum partial movement of sulphur with permission at least partly sulphur direction to shape At shielded layer.The technical solution can be effectively treated the soil remediation problem of oil pollution, but low efficiency and there are secondary pollutions Possibility.CN201620094652.0 discloses a kind of in-situ remediation system of mobile contaminated soil, including dispensing canister, high pressure Grouting pump, air compressor, high-pressure rotary-spray device and running gear；The dispensing canister, high-pressure injection pump, air compressor, height Pressure rotary-spraying device is each attached to the upper surface of running gear；The dispensing canister outlet is connect with high-pressure injection pump pipeline；The high pressure Grouting pump, air compressor are connected with the drilling machine injecting systems on high-pressure rotary-spray device respectively.The technical solution is taken out in gas phase It comprehensively utilizes and is improved in formulation and the principle of chemical leaching, can also have preferably for the Polluted area of low-permeability soil Repairing effect, but be difficult to cope with high pollution environment, there is also the risks of secondary pollution.CN201610474065.9 discloses one The restorative procedure and electronic microbial association permeable reactive barrier prosthetic device of kind of cadmium, lead-contaminated soil, specifically include reactive tank, Electrode, power supply and permeable reactive barrier, cadmium to be processed, the lead of filling addition microorganism are dirty between two permeable reactive barriers Soil is contaminated, is adsorbed to the pollutant of electrode transfer by permeable reactive barrier from soil, thus cadmium, lead heavy metal to be processed Soil in remove.Permeable reactive barrier and electric driving method, which is utilized, in the technical solution has a preferable remediation efficiency, but device compared with For complexity, there are more difficulties for concrete practice.The soil that CN201810158531.1 discloses a kind of more repair mode one is repaired Complex system, including feed module, soil remediation module, microorganism remediation module, transportation module, soil drying module, soil light Repair module and material discharging module.But microorganism remediation cycle time is longer, and repairs the more difficult cultivation of strain.

To sum up, the soil restoring technology of the prior art is there are low efficiency, the deficiencies of polluting easily diffusion, cause secondary pollution, A kind of big, serious place of organic pollution for contaminated area is still needed to, technical solution that can be efficient and without secondary pollution.

Utility model content

The utility model aim is in view of the deficiencies of the prior art, to provide a kind of in conjunction with situ heat treatment process, gas phase The soil restoring technology improved on the basis of the principle and advantage of extraction process and permeable reactive barrier, can be to the organic dirt in place Dye carries out in-situ immobilization, not will cause secondary pollution, and remediation efficiency is high, and effect is good, and difficulty of construction reduces, short time limit, can basis Disparity items field condition is adjusted flexibly.Technical solutions of the utility model are as follows.

A kind of situ heat treatment, gas phase extracting and permeable reactive barrier joint renovation of organic pollution soil device, including In-situ heat component, gas phase extracting component and permeable reactive barrier component；

The in-situ heat component includes several electromagnetic heating components pierced in contaminated soil region, and the electromagnetism adds Hot component includes supporting sleeve and the heating tube that is set to inside supporting sleeve, and contaminated soil table is located at the top of the supporting sleeve Soil layer opening is formed on face, the heating tube is fixedly connected with gas collecting tube on the soil surface, and the heating tube is provided with electricity Gas interface can access external power supply, and the supporting sleeve top is cylindrical body, and lower part is triangular pyramids, inside the supporting sleeve Cylindrical body and triangular pyramids are separated by bottom plate, several macropores are provided on the outer wall of the supporting sleeve and several are small Hole, in the cylindrical portion, the aperture is arranged in the cylindrical body and the triangular pyramids part, institute for the macropore setting It states and is evenly arranged with 4 apertures around macropore, the circle center distance of the macropore and the aperture is 3 times of hole diameter, The ratio between the aperture of the macropore and the aperture of the aperture are 1:(4-10)；

Gas phase extracting component includes the gas gathering mask for covering contaminated soil region, inside the gas gathering mask by air hose with Blower connection, the blower are connect with organic matter treating apparatus, and the gas collecting tube of the in-situ heat component is connect with gas pipeline, institute It states gas pipeline to be controlled to a vacuum pump, the vacuum pump is connect with the organic matter treating apparatus, and the gas gathering mask is far from blower One end air inlet is set, the air inlet is provided with check valve, and the check valve limits gas stream outside the gas gathering mask To the inside of the gas gathering mask；

The permeable reactive barrier component includes several cylindrical bodies along the setting of contaminated soil pollutant transport direction It reacts stake and divider wall, the reaction stake includes outer pile body, interior pile body, the pile body surface of the outer pile body is provided with protrusion, institute It states interior pile body and is internally provided with infiltration filler, be provided with pile body diaphragm, the outer pile body between the interior pile body and infiltration filler The pile body surface of the interior pile body is provided with perforative hole, the infiltration filler to it is lower and on be provided with zeolite layer, phosphorus ash Rock layers, zeroth order iron layer, lkd layer and living soil layer, the zeolite layer, the apatite layer, the zeroth order iron layer, the stone The ratio between thickness of grieshoch and the living soil layer is (1-2): (2-3): (5-8): (1-2): (1-3)；The reaction stake is along dirt The dye soil pollutant direction of motion is provided with the first reaction stake layer, the second reaction stake layer and third reaction stake layer, the divider wall The first reaction stake layer and the are set to including the first divider wall, the second divider wall, third divider wall, first divider wall Between two reaction stake layers, second divider wall is set between the second reaction stake layer and third reaction stake layer, institute It states third divider wall and reacts the same cambered surface of stake layer with third；

The gas gathering mask contaminated soil region position between the second divider wall and third divider wall, the electromagnetism Heating component is no less than 10m at a distance from the reaction stake.

The utility model combines situ heat treatment process, gas phase extraction process and permeable reactive barrier advantage, organic matter processing It concentrates on a region to be disposed, prevent so that organic pollutant further migrates in the soil, effectively control pollution range. Meanwhile so that organic matter is volatilized in a manner of organic matter in In Situ Heating soil in contaminated area, to greatly reduce organic matter in soil Content, heating method are electromagnetic heatings, and heating equipment is electromagnetic heating component.Electromagnetic heating does not need heat transport fluid, such as steam, It is more effective to the heating of deeper soil.Electromagnetic heating is not by the limit of low heat conductivity, supracrustal rocks, heat transport fluid rambunctious etc. System, therefore, processing soil pollution is advantageously than other heating methods.

Wherein, the situ heat treatment process heats the heating tube by the power supply that external power supply provides, then is added by described By its heat transfer to adjacent soil, adjacent soil is passed through described in macropore and aperture entrance heat pipe by thermogenetic organic pollutant In heating tube, the organic gas processing component is drained by the gas collecting tube, after processing qualified discharge.Due to electromagnetism plus Heat has that heating power is high, the rate of heat addition is fast etc. especially compared to resistance heating, needs for row setting macropore and aperture, will be hot Amount passes to soil.The macropore is arranged in the cylindrical portion, and triangular pyramids part, therefore triangular pyramids cannot be arranged in Part might have partially liq entrance, if the hole opened is excessive, liquid will accumulate excessively within a certain period of time, be unfavorable for locating Reason, but if not opening aperture, it may be difficult to detect the disposition of ground end.Not there is electromagnetism in especially triangular pyramids part Heating, prevents hot-spot without releasing energy, and setting aperture just uses enough.Aperture is arranged around macropore, can be formed The uniform heat-field of one center, four spaced points also can promote adjacent soil and be entered heating tube by thermogenetic organic pollutant Interior, the circle center distance of the macropore and the aperture is 3 times of hole diameter, and heating distribution is more uniform in the case.

The gas phase extracting component seals covering one on the place in contaminated area and electromagnetic assembly heating operation region Gas gathering mask, to collect the organic matter to volatilize in heating process, the power supply heating heating tube provided by external power supply, then by For the heating tube by its heat transfer to contaminated soil, contaminated soil is entered the heating tube by thermogenetic organic pollutant It is interior.Gas gathering mask with blower draw the gas containing organic matter, then in gas collecting tube on electromagnetic heating component by vacuum pump extract out Gas equally enters organic matter treating apparatus, to recycle organic matter in organic matter or removal gas, to prevent having for volatilization Machine object enters and pollutes air.

Permeable reactive barrier component, devises the reaction stake of multilayer divider wall system and special designing, and outer pile body can prevent Soil corrosion, protrusion can increase frictional force with soil, prevent from burying and occur toppling over and sliding in the soil, and pile body diaphragm can prevent Filler extravasation, the bootable organic pollutant of described hole enters inside reaction stake to react with infiltration filler.Zeolite layer conduct Matrix, can bearing capacity with higher, other fillers above can be carried, meanwhile, zeolite layer physics with higher is inhaled Attached effect, the permeable reactive barrier based on it can effectively adsorb the Cr VI in water, and not will cause environment pair Effect.Zeroth order iron layer is from a wealth of sources, cheap, has stronger reducing power, the permeable reactive filled using zeroth order iron layer Wall technology has been widely used in the processing that the underground water of object etc. is closed containing heavy metal, petroleum hydrocarbon, nitryl aromatic.Therefore, zero The usage amount of valence iron layer is the largest.Zeolite layer but under the action of underground water washes away for a long time, by zeolite layer adsorb sexavalence Chromium can be desorbed partially, so that repairing effect is difficult to reach perfect condition, meanwhile, zeroth order iron layer density is larger, when its partial size is less than When the gap of permeable reactive foundation of wall filler, over time, the movement of water flow, zeroth order iron layer can move down stream It loses, to destroy the reasonable interstitital texture of permeable reactive wall, influences treatment effect.Therefore, between zeolite layer and zeroth order iron layer One layer of apatite layer is set, and the apatite layer is highdensity hydroxyapatite layer, the bearing capacity of hydroxyapatite layer and boiling Rock layers are suitable, and the aperture of the aperture ratio zeolite layer of hydroxyapatite layer is much smaller, can not only help to carry zeroth order iron layer, It can also prevent zeroth order iron layer from moving down, and apatite layer itself has adsorption capacity, zeolite layer can be assisted to adsorb, made Obtaining the heavy metal ion adsorbed in zeolite layer can be held up.Lkd layer has lye, if organic gas enters It reacts inside stake, it will rise along cylinder, absorbed by lkd layer, organic soil pollution can be effectively treated.Living soil layer Reaction stake is sealed for ground, it is simple and convenient, the integrality and safety of filler can be kept.

In particular, herein described gas gathering mask contaminated soil region position between the second divider wall and third divider wall Between, the electromagnetic heating component is no less than 10m at a distance from the reaction stake.Gas gathering mask is situated between in the position in contaminated soil region Between the second divider wall and third divider wall, pollutant can be limited in inside gas gathering mask to greatest extent, it can also be effective The function of permeable reactive barrier is played, the electromagnetic heating component is no less than 10m at a distance from the reaction stake, thus will not It is evaporated after being heated in the presence of reaction stake attachment organic pollutant, is then dispersed into air and pollutes environment, so as to protect Card in-situ heat component, gas phase extracting component and permeable reactive barrier component can be cooperateed with and be played a role, and administer has to greatest extent Machine contaminated soil.

Preferably, the electromagnetic heating component includes high-frequency heating component, heating in medium frequency component and low frequency heating component.Institute The heating tube for stating high-frequency heating component is provided with high frequency heating coil；The heating tube of the heating in medium frequency component is provided with intermediate frequency and adds Heat coil；The heating tube of the low frequency heating component is provided with low frequency heating coil.The high-frequency heating component power frequency is high Heating function is high, and heating in medium frequency component and low frequency heating component heating efficiency are successively decreased.Electromagnetic heating can be divided into low frequency by frequency (10Hz-10³Hz), intermediate frequency (10³Hz-10⁶) and high frequency (10 Hz⁶Hz-10⁹Hz).The environment that different heating power supplies uses is different The power of sample, heating is different, and when using low-frequency current source, Joule heating (electric conductivity based on substance) is main；It uses When high frequency, dielectric heating account for it is leading, the dipole that wherein molecule is formed with the speed proportional to electric field change frequency tend to Electric field is aligned (" polarizing "), and this molecular motion can generate a large amount of heat, it is seen that in the heating of micro-wave oven；Using intermediate frequency, then Joule heating and dielectric heating exist simultaneously.When high frequency based on macropore, help to conduct heat, applied to heavy contamination Region, can quickly handle depth contaminated area, when low frequency, based on aperture, apply to region of reduced contamination, and helping remaining has Machine pollutant slowly enters in heating tube, facilitates advanced treating, and intermediate frequency falls between.

Preferably, the big hole number of the high-frequency heating component and aperture ratio of number are (2-4): 1；The heating in medium frequency The big hole number and aperture ratio of number of component are (1-2): 1；The big hole number of the low frequency heating component and small hole number it Than for (0.5-1): 1, the high-frequency heating component is arranged using regular hexagon, and the heating in medium frequency component is using square Be arranged, the low frequency heating component is arranged using equilateral triangle, the side length of the regular hexagon, it is described square The ratio between side length, side length of the equilateral triangle are 1:2:4.A high-frequency heating group is provided on each node of regular hexagon Part, the heating in medium frequency component are arranged using square, are provided with a heating in medium frequency component on each node of square, The low frequency heating component is arranged using equilateral triangle, and a low frequency heating group is provided on each node of equilateral triangle Part.The ratio between the side length of the regular hexagon, the side length of the square, side length of the equilateral triangle are 1:2:4, and arrangement is more Rationally.High-frequency heating component is applied to serious pollution area, and the heating amount is more, and big hole number compares just more, Ke Yineng Enough heat, and so on, the big hole number of the heating in medium frequency component and the low frequency heating component tails off.

Preferably, the cylindrical portion inside the supporting sleeve is filled with heating filler, and the heating filler is by filler For diaphragm seals in the supporting sleeve inner space, the heating tube is fixed on the center of heating filler, and the heating filler is Heat filling, the heat filling are zinc oxide.Filler can not only play the role of supporting heating tube, so that the heat supply of system Uniformly, and heat can be conducted, promotes the organic pollutant evaporation for closing on soil.Zinc oxide is that a kind of thermal effect is relatively good Filler.

Preferably, organic gas detection sensor is arranged in the triangular pyramids inside the supporting sleeve.Organic gas detection Sensor can be used to detect the content of organic gas, and judge soil treatment effect by the content.

Preferably, the gas gathering mask is made of rigid material, and the rigid material is polymethyl methacrylate, propylene It is a kind of in nitrile-butadiene-styrene copolymer or glass reinforced plastic.Rigid material has preferable supporting role, it can be ensured that takes out It is not in loophole when gas, meanwhile, rigid material used herein is all that transparent, transparent material clearer can be seen Situation inside clear gas gathering mask, handles emergency situations in time.

Preferably, the outer pile body is porous ceramics shell, and the interior pile body is Alveolate activated carbon layer, the porous pottery The ratio between the thickness of porcelain shell and the active carbon layer (1-2): 1.Porous ceramics and Alveolate activated carbon layer all have porous knot Structure can promote organic pollutant to penetrate into reaction stake and react.Hole ceramics bracket has certain rigidity, has very More anti-pressure abilities, can prevent soil extruding cause reaction stake deformation, Alveolate activated carbon layer can to organic pollutant into Row preliminary treatment, meanwhile, preferable fitting can be formed with porous ceramics, one is SI material, and one is C-material, being capable of shape At the framework of more firm reaction stake, so that reaction stake is relatively stable.The thickness of the porous ceramics shell and the active carbon The ratio between degree (1-2): 1.The amount of porous ceramics shell should be no less than the thickness of active carbon, not so be difficult to carry, and porous ceramics shell If body is blocked up, gas osmotic effect is bad.

Preferably, the pile body of the outer pile body and the interior pile body is provided with perforative hole, the aperture face of described hole Product accounts for the cylindrical sides surface area 10-20% of the outer pile body.Hole may make gas enter the reaction stake with it is described Filler contact is permeated, the perforated area of described hole accounts for cylindrical sides the surface area 10-20%, Ke Yibao of the outer pile body Demonstrate,proving pollutant in the outer pile body and the air-locked situation of interior pile body can enter the inside of reaction stake.

Preferably, first divider wall and second divider wall are semi-transparent wall, and the third divider wall is impermeable wall. Multiple divider wall systems are capable of the further diffusion of effective block contaminant, and treatment by stages organic pollutant, are enabled to Organic matter is fully isolated in contaminated area, and the first divider wall and second divider wall can allow the pollutant in soil to penetrate, And the third divider wall is impermeable wall, pollutant can be limited in Polluted area.

Preferably, the protrusion is prismatic or triangular pyramid type.The utility model is compounded with more set settings, carries out to soil When processing, the flowing of soil organic pollutant can be accelerated, and held very much than more loose by the soil of organic gaseous contamination Easily flowing, therefore, the equipment being inserted into soil are very easy to occur deviating or loosen, and prismatic or triangular pyramidal can be pierced into In soil, it is better protected from reaction stake offset.

The beneficial effects of the utility model have:

(1) the utility model concentrates in-situ heat component, gas phase extracting component and permeable anti-in organic polluted soil region It answers wall to carry out joint disposal, prevents so that organic pollutant further migrates in the soil, effectively control pollution range, polluting Area makes organic matter volatilize in a manner of organic matter in In Situ Heating soil, to greatly reduce content of organics in soil, in-situ heat Component, gas phase extracting component and permeable reactive barrier component can be cooperateed with and be played a role, and administer organic contamination soil to greatest extent Earth；

(2) the utility model uses electromagnetic heating, does not need heat transport fluid, heats more effectively, not only to deeper soil Various contaminated soil processing can be sufficiently coped with, heating efficiency is high, provided with three kinds of different heating components, and is correspondingly arranged on Three kinds of holes, can be heated, high treating effect for different pollution conditions, and soil remediation ability is strong；

(3) the further diffusion of effective block contaminant is capable of in the reaction stake of multilayer divider wall system and special designing, and Treatment by stages organic pollutant reacts stake composite multi-layer filler, and each layer infiltration filler can cooperate, not only can Contaminated area is sufficiently controlled, additionally it is possible to the organic pollutant to volatilize in efficient process heavy mental treatment soil；

(4) the utility model is designed reasonably, structure is simple, easy to maintain, also avoids secondary pollution, and application prospect is wide, energy Enough long-times are in contaminated soil normal service.

Detailed description of the invention

Fig. 1 apparatus structure schematic diagram；

Fig. 2 situ heat treatment component structure diagram；

Fig. 3 electromagnetic heating component sectional view；

Fig. 4 reacts pilework schematic diagram；

Fig. 5 reacts stake cross-sectional view；

Fig. 6 electromagnetic heating component, reaction stake and reaction wall layout drawing；

Appended drawing reference: in-situ heat component 1, supporting sleeve 101, heating tube 102, bottom plate 103, gas collecting tube 104, electric interfaces 105, macropore 106, aperture 107, heating filler 108, filler diaphragm 109, organic gas detection sensor 110, high-frequency heating group Part 111, heating in medium frequency component 112, low frequency heating component 113, gas phase extract component 2, permeable reactive barrier component 3, outer pile body 301, interior pile body 302, pile body diaphragm 303, protrusion 304, hole 305, zeolite layer 306, apatite layer 307, zeroth order iron layer 308, Lkd layer 309, living soil layer 310, first react stake layer 311, second and react stake layer 312, third reaction stake layer 313, first Divider wall 314, the second divider wall 315, third divider wall 316, contaminated soil region 4, contaminated soil surface 5, gas gathering mask 6, wind Pipe 7, blower 8, organic matter treating apparatus 9, gas pipeline 10, vacuum pump 11, air inlet 12.

Specific embodiment

Specific embodiment of the present utility model is described further with reference to the accompanying drawing:

A kind of situ heat treatment, gas phase extracting and permeable reactive barrier joint renovation of organic pollution soil device, such as Fig. 1 It is shown, including in-situ heat component 1, gas phase extracting component 2 and permeable reactive barrier component 3；

As shown in Figures 2 and 3, the in-situ heat component 1 includes that several electromagnetism pierced in contaminated soil region add Hot component, the electromagnetic heating component include supporting sleeve 101 and the heating tube 102 that is set to inside supporting sleeve, the branch It is located on contaminated soil surface 5 at the top of support set pipe 101 and forms soil layer opening, the heating tube 102 is on contaminated soil surface 5 It is fixedly connected with gas collecting tube 104, the heating tube 102, which is provided with electric interfaces 105, can access external power supply, the supporting sleeve 101 tops are cylindrical body, and lower part is triangular pyramids, pass through bottom plate 103 inside the supporting sleeve 101 for cylindrical body and pyrometric cone Body separates, several macropores 106 and several apertures 107, the macropore 106 are provided on the outer wall of the supporting sleeve 101 Setting is arranged in the cylindrical portion, the aperture 107 in the cylindrical body and the triangular pyramids part, the macropore It is evenly arranged with 4 apertures 107 around 106, the circle center distance of the macropore 106 and the aperture 107 is hole diameter 3 times, the ratio between aperture of the aperture of the macropore 106 and the aperture 107 is 1:(4-10)；

The gas phase extracting component 2 includes the gas gathering mask 6 in covering contaminated soil region 4, passes through wind inside the gas gathering mask 6 Pipe 7 is connected to blower 8, and the blower 8 is connect with organic matter treating apparatus 9, the gas collecting tube 104 and gas of the in-situ heat component 1 Body pipeline 10 connects, and the gas pipeline 10 is connect with vacuum pump 11, and the vacuum pump 11 connects with the organic matter treating apparatus 9 It connects, air inlet 12 is arranged far from one end of blower in the gas gathering mask 6, and the air inlet 12 is provided with check valve, the check valve Limit the inside that gas flows to the gas gathering mask outside the gas gathering mask；

As shown in Figure 4 and Figure 5, the permeable reactive barrier component 3 includes being arranged along contaminated soil pollutant transport direction Several cylindrical bodies reaction stake and divider wall, the reaction stake include outer pile body 301, interior pile body 302, the outer pile body Pile body surface is provided with protrusion 304, and the interior pile body is internally provided with infiltration filler, sets between the interior pile body and infiltration filler It is equipped with pile body diaphragm 303, the pile body surface of the outer pile body 301 and the interior pile body 302 is provided with perforative hole 305, institute State infiltration filler to it is lower and on be provided with zeolite layer 306, apatite layer 307, zeroth order iron layer 308, lkd layer 309 and living soil Layer 310, the zeolite layer, the apatite layer, the zeroth order iron layer, the lkd layer and the living soil layer thickness it Than for (1-2): (2-3): (5-8): (1-2): (1-3)；The reaction stake is provided with along contaminated soil pollutant transport direction One reaction stake layer 311, second reacts stake layer 312 and third and reacts stake layer 313, and the divider wall includes the first divider wall 314, the Two divider walls 315, third divider wall 316, first divider wall 314 are set to the first reaction stake layer 311 and second instead It answers between stake layer 312, second divider wall 315 is set to the second reaction stake layer 312 and third reaction stake layer 313 Between, the third divider wall 316 reacts the same cambered surface of stake layer 313 with third；

As shown in figure 5, the electromagnetic heating component includes that high-frequency heating component 111, heating in medium frequency component 112 and low frequency add Hot component 113, the heating tube 102 of the high-frequency heating component 111 are provided with high frequency heating coil, the heating in medium frequency component 112 heating tube 102 is provided with medium-frequency heating coil, and the heating tube 102 of the low frequency heating component 113 is provided with low frequency heating Coil, the high-frequency heating component 111 are arranged using regular hexagon, the heating in medium frequency component 112 using square into Row arrangement, the low frequency heating component 113 are arranged using equilateral triangle, the side length of the regular hexagon, the square Side length, the ratio between the side length of the equilateral triangle be 1:2:4.The gas gathering mask 6 contaminated soil region 4 position between second Between divider wall 315 and third divider wall 316, the electromagnetic heating component is no less than 10m at a distance from the reaction stake.

As preferred embodiment, 106 quantity of macropore and 107 ratio of number of aperture of the high-frequency heating component 111 are (2-4): 1；106 quantity of macropore and 107 ratio of number of aperture of the heating in medium frequency component 112 are (1-2): 1；The low frequency adds 106 quantity of macropore and 107 ratio of number of aperture of hot component 113 are (0.5-1): 1.

As preferred embodiment, the cylindrical portion inside the supporting sleeve 101 is filled with heating filler 108, institute It states heating filler 108 and 101 inner space of supporting sleeve is enclosed in by filler diaphragm 109, the heating tube 102, which is fixed on, to be added The center of hot filler 108, the heating filler 108 are heat filling, and the heat filling is zinc oxide, the supporting sleeve Organic gas detection sensor 110 is arranged in triangular pyramids inside 101.

As preferred embodiment, the gas gathering mask 6 is made of rigid material, and the rigid material is polymethylacrylic acid It is a kind of in methyl esters, acrylonitrile-butadiene-styrene copolymer or glass reinforced plastic.

As preferred embodiment, the outer pile body 301 is porous ceramics shell, and the interior pile body 302 is living for honeycomb Property layer of charcoal, the ratio between thickness of the porous ceramics shell and the active carbon layer (1-2): 1, described raised 314 for prismatic or The pile body of triangular pyramidal, the outer pile body 301 and the interior pile body 302 is provided with perforative hole 305, described hole 305 Perforated area accounts for the cylindrical sides surface area 10-20% of the outer pile body 301.As preferred embodiment, described first Divider wall 314 and second divider wall 315 are semi-transparent wall, and the third divider wall is impermeable wall 316.

According to the disclosure and teachings of the above specification, the utility model those skilled in the art can also be to above-mentioned reality The mode of applying is changed and is modified.Therefore, the utility model is not limited to specific embodiment disclosed and described above, right Some modifications and changes of utility model should also be as falling into the protection scope of the claims of the present utility model.In addition, although It is used some specific terms in this specification, these terms are merely for convenience of description, not to the utility model structure At any restrictions.

Claims (10)

1. the device of the extracting of a kind of situ heat treatment, gas phase and permeable reactive barrier joint renovation of organic pollution soil, feature It is, including in-situ heat component, gas phase extracting component and permeable reactive barrier component；

The in-situ heat component includes several electromagnetic heating components pierced in contaminated soil region, the electromagnetic heating group Part includes supporting sleeve and the heating tube that is set to inside supporting sleeve, be located at the top of the supporting sleeve contaminated soil surface it Upper formation soil layer opening, the heating tube are fixedly connected with gas collecting tube on contaminated soil surface, and the heating tube is provided with electricity Gas interface can access external power supply, and the supporting sleeve top is cylindrical body, and lower part is triangular pyramids, inside the supporting sleeve Cylindrical body and triangular pyramids are separated by bottom plate, several macropores are provided on the outer wall of the supporting sleeve and several are small Hole, in the cylindrical portion, the aperture is arranged in the cylindrical body and the triangular pyramids part, institute for the macropore setting It states and is evenly arranged with 4 apertures around macropore, the circle center distance of the macropore and the aperture is 3 times of hole diameter, The ratio between the aperture of the macropore and the aperture of the aperture are 1:4-10；

The gas phase extracting component includes the gas gathering mask for covering contaminated soil region, passes through air hose and blower inside the gas gathering mask Connection, the blower are connect with organic matter treating apparatus, and the gas collecting tube of the in-situ heat component is connect with gas pipeline, the gas Body pipeline is controlled to a vacuum pump, and the vacuum pump is connect with the organic matter treating apparatus, the gas gathering mask far from blower one End setting air inlet, the air inlet are provided with check valve, and the check valve limits gas and flows to institute outside the gas gathering mask State the inside of gas gathering mask；

The permeable reactive barrier component includes the reaction along several cylindrical bodies of contaminated soil pollutant transport direction setting Stake and divider wall, the reaction stake include outer pile body, interior pile body, and the pile body surface of the outer pile body is provided with protrusion, described interior Pile body is internally provided with infiltration filler, is provided with pile body diaphragm, the outer pile body and institute between the interior pile body and infiltration filler The pile body surface for stating interior pile body is provided with perforative hole, the infiltration filler to it is lower and on be provided with zeolite layer, apatite layer, Zeroth order iron layer, lkd layer and living soil layer, the zeolite layer, the apatite layer, the zeroth order iron layer, the lkd layer and The ratio between thickness of the living soil layer is 1-2:2-3:5-8:1-2:1-3；The reaction stake is along contaminated soil pollutant transport It includes the first divider wall, that direction, which is provided with the first reaction stake layer, the second reaction stake layer and third reaction stake layer, the divider wall, Two divider walls, third divider wall, first divider wall are set between the first reaction stake layer and the second reaction stake layer, institute It states the second divider wall to be set between the second reaction stake layer and third reaction stake layer, the third divider wall and third React the same cambered surface of stake layer；

The gas gathering mask contaminated soil region position between the second divider wall and third divider wall, the electromagnetic heating Component is no less than 10m at a distance from the reaction stake.

2. the apparatus according to claim 1, which is characterized in that the electromagnetic heating component include high-frequency heating component, in Frequency heating component and low frequency heating component.

3. the apparatus of claim 2, which is characterized in that the big hole number and small hole number of the high-frequency heating component The ratio between be (2-4): 1；The big hole number and aperture ratio of number of the heating in medium frequency component are 1-2:1；The low frequency heating group The big hole number and aperture ratio of number of part are 0.5-1:1, and the high-frequency heating component is arranged using regular hexagon, described Heating in medium frequency component is arranged using square, and the low frequency heating component is arranged using equilateral triangle, and described positive six The ratio between the side length of side shape, the side length of the square, side length of the equilateral triangle are 1:2:4.

4. the apparatus of claim 2, which is characterized in that the cylindrical portion inside the supporting sleeve, which is filled with, to be added Hot filler, for the heating filler by filler diaphragm seals in the supporting sleeve inner space, the heating tube is fixed on heating The center of filler, the heating filler are heat filling, and the heat filling is zinc oxide.

5. the apparatus of claim 2, which is characterized in that organic gas is arranged in the triangular pyramids inside the supporting sleeve Body detecting sensor.

6. the apparatus according to claim 1, which is characterized in that the gas gathering mask is made of rigid material, the rigidity material Material is a kind of in polymethyl methacrylate, acrylonitrile-butadiene-styrene copolymer or glass reinforced plastic.

7. the apparatus according to claim 1, which is characterized in that the outer pile body is porous ceramics shell, the interior pile body For Alveolate activated carbon layer, the ratio between thickness of the porous ceramics shell and active carbon layer 1-2:1.

8. the apparatus according to claim 1, which is characterized in that the pile body of the outer pile body and the interior pile body, which is provided with, to be passed through The hole worn, the perforated area of described hole account for the cylindrical sides surface area 10-20% of the outer pile body.

9. device according to claim 8, which is characterized in that first divider wall and second divider wall are semi-transparent Wall, the third divider wall are impermeable wall.

10. device according to claim 9, which is characterized in that the protrusion is prismatic or triangular pyramid type.