CN106734167A - Strengthen repair system and technique in a kind of organic contamination place - Google Patents
Strengthen repair system and technique in a kind of organic contamination place Download PDFInfo
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- CN106734167A CN106734167A CN201611218809.7A CN201611218809A CN106734167A CN 106734167 A CN106734167 A CN 106734167A CN 201611218809 A CN201611218809 A CN 201611218809A CN 106734167 A CN106734167 A CN 106734167A
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- organic contamination
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- 230000008439 repair process Effects 0.000 title claims abstract description 89
- 238000011109 contamination Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000000605 extraction Methods 0.000 claims abstract description 87
- 239000000463 material Substances 0.000 claims abstract description 40
- 238000010438 heat treatment Methods 0.000 claims abstract description 26
- 238000005067 remediation Methods 0.000 claims abstract description 14
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 12
- 238000013268 sustained release Methods 0.000 claims abstract description 12
- 239000012730 sustained-release form Substances 0.000 claims abstract description 12
- 239000003814 drug Substances 0.000 claims description 27
- 239000002689 soil Substances 0.000 claims description 15
- 229940079593 drug Drugs 0.000 claims description 13
- 238000001802 infusion Methods 0.000 claims description 12
- 239000012528 membrane Substances 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000009418 renovation Methods 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 3
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 abstract description 19
- 238000007254 oxidation reaction Methods 0.000 abstract description 19
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 abstract description 16
- 238000011065 in-situ storage Methods 0.000 abstract description 15
- 239000000126 substance Substances 0.000 abstract description 15
- 238000005516 engineering process Methods 0.000 abstract description 12
- 238000003795 desorption Methods 0.000 abstract description 9
- 239000004927 clay Substances 0.000 abstract description 6
- 239000004568 cement Substances 0.000 abstract description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 4
- 239000011707 mineral Substances 0.000 abstract description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 6
- 231100000719 pollutant Toxicity 0.000 description 6
- 230000003247 decreasing effect Effects 0.000 description 5
- 239000003610 charcoal Substances 0.000 description 4
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000007800 oxidant agent Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 239000003673 groundwater Substances 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- LBSANEJBGMCTBH-UHFFFAOYSA-N manganate Chemical compound [O-][Mn]([O-])(=O)=O LBSANEJBGMCTBH-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 231100001234 toxic pollutant Toxicity 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
- B09C1/08—Reclamation of contaminated soil chemically
-
- 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
- B09C1/00—Reclamation of contaminated soil
- B09C1/06—Reclamation of contaminated soil thermally
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C2101/00—In situ
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of organic contamination place reinforcing repair system, it includes：Extraction system, drug-injecting system, heating system and obstruct repair layer.With chemical oxidation techniques be combined thermal desorption technology in situ by organic contamination site remediation system of the invention, repair materials layer is increased simultaneously, repair materials layer is made up of sustained release oxidation material, main to be made up of persulfate and natural clay material, nonmetallic mineral, cement etc., the sulfate radical of generation is fixed after can persulfate be reacted.On the one hand repair system of the invention can reduce organic contamination place original position thermal desorption rehabilitation cost, on the other hand can improve in situ chemical oxidation remediation efficiency, reduce secondary pollution, so as to reduce rehabilitation cost, improve remediation efficiency.
Description
Technical field
The present invention relates to a kind of organic contamination place reinforcing repair system, belong to the pollutant abatement technology neck in environmental protection
Domain.
Background technology
With the continuous propulsion of Urbanization in China, substantial amounts of resettlement place is occurred in that in city, wherein most plot
It is contaminated.For the plot of heavy metal pollution, administering method is relative to be easier to；For organic contamination place, because majority has
Machine thing has stimulation peculiar smell, when repair implementation by the way of being reprocessed after excavation, is often produced because of the problems such as peculiar smell spreads
Secondary pollution.In this case, the based technique for in-situ remediation technics comparing for excavate treatment to contaminated site is welcome, often
That sees has gas phase in situ/multiphase extraction technique, in situ chemical oxidation technology, thermal desorption technology in situ etc..Wherein, in-situ chemical oxygen
Change technology is mainly by way of injecting chemical oxidizing agent in place, by the toxic pollutant oxidation in soil and groundwater
It is innocuous substance, medicament is mainly persulfate, the accessory substance produced after reaction is sulfate radical, is easily caused restoring area
Sulfate radical is exceeded；Simultaneously as being influenceed by factors such as the closely knit, poor permeabilities of clay quality, in situ chemical oxidation is caused to be applied
The diffusion hindered of man-hour medicament, remediation efficiency are impacted.
Thermal desorption technology in situ is the organic pollution in promotion place by way of being heated to contaminated place
Volatilization, and the pollutant that will volatilize is collected and carries out harmless treatment by way of gas phase is extracted, the technology can be with
Rapidly and efficiently renovation of organic pollution place, but because its high energy consumption, rehabilitation cost are higher, be restricted in application.
The content of the invention
In order to solve the above-mentioned technical problem, the invention provides a kind of organic contamination place reinforcing repair system.Consider
Heating can enter line activating to persulfate, and the crack that is produced in soil after heating is waved beneficial to pollutant in soil and groundwater
Hair, the diffusion of oxidating chemicals, if thermal desorption technology in situ be combined with chemical oxidation techniques, on the one hand can reduce organic
Contaminated site original position thermal desorption rehabilitation cost, on the other hand can improve in situ chemical oxidation remediation efficiency, so as to reduce reparation
Cost, raising remediation efficiency.With thermal desorption technology in situ be combined in situ chemical oxidation technology by the present invention, while increased
Repair materials layer, repair materials layer is made up of sustained release oxidation material, mainly by persulfate and natural clay material, nonmetallic ore
Thing, cement etc. are constituted, and the sulfate radical produced after can persulfate be reacted is fixed.
The organic contamination place reinforcing repair system that the present invention is provided, including：Extraction system, drug-injecting system, heating
System and obstruct repair layer；
Extraction system includes horizontal extraction system and vertical extraction system；Horizontal extraction system includes：Level is laid on organic dirt
At least one extraction pipe on the ground in place is contaminated, an open end of extraction pipe connects an extraction device, takes out by pipeline
The port for carrying remaining open end of pipeline is coated with the filter membrane for preventing solid to be pumped into；Vertical extraction system includes：Vertically it is opened in
At least one extraction well of the underground in the organic contamination place, the bottom of extraction well is located at saturated zone, in extraction well
Bottom is provided with the filter screen for preventing solid to be pumped into, and extraction well upper end closed simultaneously connects extraction device；
Drug-injecting system includes drug infusion device, and drug infusion device connects the extraction well by pipeline；
Heating system includes at least one heated well of the underground for being vertically opened in the organic contamination place, heated well
Lower end is located at the lower section of the bottommost pollution soil layer in organic contamination place；Heated well connects heater；
Repair layer is intercepted, it includes that surface intercepts repair layer and vertical divider repair layer；Surface intercepts repair layer and is covered in extracting
On pipeline；Vertical divider repair layer, it is vertically set around organic contaminated site, and the upper end of vertical divider repair layer is located at ground
On, the lower end of underground vertical repair layer is not higher than the lower end of heated well.
Used as optimal technical scheme, the heated well is multiple, is set around the extraction well.
Used as optimal technical scheme, the extraction pipe of the horizontal extraction system includes extracting main and multiple extracting branch
Pipe, extracting main and extracting branch pipe are grouped together into the extraction pipe of herringbone form by three-way pipe；The one of extracting main
One extraction device of end connection, other end port is provided with filter membrane, and the open end port of each extracting branch pipe is provided with filter membrane.
Used as optimal technical scheme, the surface intercepts repair layer to be included being sequentially coated on extraction pipe from bottom to top
Metalling, repair materials layer and surface coating；The vertical divider repair layer includes vertical around the setting of organic contaminated site
Metalling and around metalling outside set repair materials layer.
Used as optimal technical scheme, the repair materials layer is the sustained release layer of oxidized material for soil remediation, and thickness is
0.5-1m。
Used as optimal technical scheme, the surface coating is insulating concrete layer, and its thickness is not less than 10cm.
Used as optimal technical scheme, the thickness of metalling is not less than 10cm.
Used as optimal technical scheme, the filter membrane of the extraction pipe is stainless steel filtering net or high-temperature filter cloth；The extracting
The filter screen of bottom is stainless steel filtering net.
Used as optimal technical scheme, the well casing of the heated well is steel pipe.
The present invention also provides the renovation technique that repair system is strengthened in above-mentioned organic contamination place, comprises the following steps：
After organic pollution place sets organic contaminated site reinforcing repair system, open heater and heated well is added
Extraction system is opened in heat, heating simultaneously, and extracting dusty gas and liquid from organic contamination place carries out showering；It is necessary
When, vertical extraction system is closed, medicament is then repaired to addition in extraction well by drug infusion device.
According to the difference of pollutant, the medicament added by drug infusion device can be persulfate, Fenton medicament, Gao Meng
Hydrochlorate etc..
Beneficial effects of the present invention include：
1st, with chemical oxidation techniques be combined thermal desorption technology in situ by organic contamination site remediation system of the invention, add in-place
Heat makes soil produce gap, is conducive to the diffusion of oxidating chemicals and the volatilization of organic matter.In Situ Heating can be to persulfate oxygen
Line activating is entered in chemical drug agent, so that the addition of activation medicament is reduced, reduces cost, the generation of the potential secondary pollution of reduction.The present invention
Repair system on the one hand can reduce organic contamination place original position thermal desorption rehabilitation cost, on the other hand can improve in situization
Learn oxidation remediation efficiency, reduce secondary pollution, so as to reduce rehabilitation cost, improve remediation efficiency.
2. the obstruct repair layer in organic contamination site remediation system of the invention can prevent pollutant in restoring area
Spread in surrounding enviroment.
3. sustained release oxidation material in repair materials layer it is main by persulfate and natural clay material, nonmetallic mineral,
Cement etc. is constituted, and the sulfate radical produced after can persulfate be reacted is fixed, and prevents sulfate radical from producing secondary pollution.
Brief description of the drawings
Fig. 1 is that repair system structural profile schematic diagram is strengthened in organic contamination place of the invention.
Fig. 2 is that repair system structure schematic top plan view is strengthened in organic contamination place of the invention.
Fig. 3 is the structural representation of the horizontal extraction system of reinforcing repair system in organic contamination place of the invention.
Specific embodiment
With reference to specific embodiment, the invention will be further described, so that those skilled in the art can be more preferable
Understand the present invention and can be practiced, but illustrated embodiment is not as the restriction to inventing.
As shown in figure 1, reinforcing repair system in organic contamination place of the invention, including：Extraction system, take out medicament injection system
System, heating system and obstruct repair layer；
Extraction system includes horizontal extraction system and vertical extraction system.
Horizontal extraction system includes：Level is laid at least one extraction pipe on the ground in organic contamination place, takes out
The open end for carrying pipeline connects an extraction device 8 by pipeline（Including：Extraction device can be a vavuum pump, vavuum pump extracting
The gas-liquid mixture for going out enters an after-treatment device）, the port of remaining open end of extraction pipe is coated with prevents solid to be pumped into
Filter membrane（Can be stainless steel filtering net or high-temperature filter cloth etc.）.As shown in figure 3, extraction pipe includes that extracting main 3 and multiple are taken out
Branch pipe 4 is carried, extracting main 3 and extracting branch pipe 4 are grouped together into the extraction pipe of herringbone form by three-way pipe.Extracting is dry
One end of pipe 3 connects an extraction device, and other end port is provided with filter membrane 9, and the open end port of each extracting branch pipe is provided with filter membrane 9.
Vertical extraction system includes：Vertically it is opened at least one extraction well of the underground in the organic contamination place
5, the bottom of extraction well 5 is located at saturated zone, and extracting bottom is provided with the filter screen for preventing solid to be pumped into（It can be stainless steel filtering net etc.）, take out
Carry the upper end closed of well 5 connection extraction device 8.
Drug-injecting system includes drug infusion device 10, and it connects extraction well 5 by pipeline.
Heating system includes at least one heated well 6 of the underground for being vertically opened in the organic contamination place（One
As, well casing can be steel pipe）, the lower end of heated well 6 is located at the lower section of the bottommost pollution soil layer in organic contamination place（It is general downward
Extend 0.5 ~ 1 meter）；Heated well 6 connects heater 11.As shown in Fig. 2 heated well 6 is preferably multiple, set around extraction well 5
Put.Heating system can by resistance heating, conductance heating, heated by natural gas, fuel Heating, heating using microwave, vapours heat,
The modes such as hot air, radio frequency/Electromagnetic Heating are realized.
Repair layer is intercepted, including surface intercepts repair layer and vertical divider repair layer.
Surface intercepts repair layer, is covered on the extraction pipe in organic contamination place；Surface intercepts repair layer to be included under
And on be sequentially coated on metalling 7, repair materials layer 2 and surface coating 1 on extraction pipe.Repair materials layer 2 is soil
The sustained release oxidation material of reparation is constituted.Surface coating 1 is by insulating concrete（It is made up of insulating heat insulating material and concrete）,
Its thickness is not less than 10cm.Sustained release oxidation material is made up of oxidant, natural clay material, nonmetallic mineral, sand and cement.
Can be fixed for the sulfate radical that persulfate reaction is produced by sustained release oxidation material；Sustained release oxidation material be cuboid cured block,
The porous cured block of cuboid, spherical form block, spherical porous cured block, granular cured block, particulate porous cured block etc., pile up flat
It is repair materials layer 2 to spread.
Vertical divider repair layer, it is vertically set around organic contaminated site, and the upper end of vertical divider repair layer is on ground
On, the lower end of vertical divider repair layer is not higher than the lower end of heated well 6.Vertical divider repair layer is included around organic contaminated site
The metalling 7 of setting and the repair materials layer 2 set around metalling outside.Repair materials layer 2 is for the slow of soil remediation
Layer of oxidized material is released, thickness is 0.5 ~ 1m.Sustained release oxidation material is slow-release material by oxidant, natural clay material, nonmetallic
Mineral, sand and cement are constituted.The thickness of metalling is not less than 10cm.
As shown in figure 1, the metalling edge that surface intercepts repair layer can be with the metalling edge phase of vertical divider repair layer
Connect, the repair materials layer edge that surface intercepts repair layer can be with the repair materials of vertical divider repair layer layer side edge.
The renovation technique of repair system is strengthened in above-mentioned organic contamination place, comprises the following steps：
After organic pollution place sets organic contaminated site reinforcing repair system, open heater 11 and heated well 6 is entered
Extraction system is opened in row heating, heating simultaneously, and extracting dusty gas and liquid from organic contamination place carries out showering；Must
When wanting, vertical extraction system is closed, medicament is then repaired to addition in extraction well 5 by drug infusion device 10.According to pollution
The difference of thing, the reparation medicament added by drug infusion device can be persulfate, Fenton medicament, permanganate etc..
The present invention is further described with a specific embodiment below：
As shown in figure 1, reinforcing repair system in organic contamination place of the invention intercepts repair layer, heating system, extracting by surface
System（Including horizontal extraction system and vertical extraction system）, vertical divider repair layer, drug-injecting system etc. constitute.
Wherein, surface coating 1 is mainly made up of thermal insulation mortar and concrete, thickness 15cm.
Heating system is resistance heating, using ordinary carbon steel pipe as heated well 6, outer diameter of steel pipes 40mm, wall thickness 2.5mm；
With arranged in regular hexagon shape (as shown in Figure 2), the distance between two neighboring heated well 6 is 4m to heated well 6；The length of heated well 6
15m。
Horizontal extraction system is by extracting main 3, extracting branch pipe 4, vavuum pump, gas-liquid separation device, absorbent charcoal adsorption tank etc.
Constitute；Extracting main 3 and extracting branch pipe 4 are common charcoal steel pipe, extracting main 3 external diameter 40mm, wall thickness 2mm, outside extracting branch pipe
The mm of footpath 30, wall thickness 2mm；Extracting main 3 tube wall is complete, and extracting branch pipe 4 is bridge type filter pipe, extracting main and extract branch pipe with
Herring-bone form is arranged, and is attached by threeway between extracting main 3 and extracting branch pipe 4.
Vertical extraction system is made up of extraction well 5 and vavuum pump, gas-liquid separation device, absorbent charcoal adsorption tank etc..Extraction well 5
It is as shown in Figure 2 with arrangement relation between heated well 6.The radius of influence of extraction well 5 is 3.5m；The well casing of extraction well 5 is common charcoal
Steel has slit-tube, and well casing external diameter 40mm, wall thickness 2mm, tube wall gap width are 0.25mm, and well casing cracks area 30%.
Repair materials layer 2 is made up of sustained release oxidation material, and repair materials layer 2 is arranged on contaminated site top, pollution amelioration
Area peripheral edge, specifically as shown in figure 1, repair materials thickness degree is 60cm, the sustained release that by thickness be 15cm, length is 20cm is aoxidized
Cured block laying is formed, and laying depth is the rubble of 15cm between repair materials layer and restoring area, constitutes metalling.
Drug infusion device 10 connects extraction well 5, and it is persulfate that concentration is 15% to the medicament that extraction well 5 injects
Solution；（According to the difference of pollutant, the reparation medicament added by drug infusion device can be persulfate, Fenton medicament, height
Manganate etc.）.
Before system heating, by persulfate solution injection Polluted area until whole restoring area, treats Polluted area soil
After saturation, opening resistor heating makes Polluted area temperature be increased to 80 ± 5 DEG C, then opens within every 6 hours extraction system 1 time and takes out
Carry device, each run 1 hour.Monthly groundwater abstraction is detected that detection project includes target contaminant content, residual oxygen
Whether compound content, determines whether addition oxidant, continues heating according to testing result.
The system has been run 3 months altogether, the persulfate solution of period after-teeming 15% 1 time.After operation 3 months, benzene in soil
Content 0.15mg/kg is decreased below by 50mg/kg, the content of chlorobenzene is decreased below 2mg/ by for 125mg/kg in soil
Kg, the content of total petroleum hydrocarbon is decreased below 508mg/kg by 4600mg/kg in soil；The content of benzene is by 5.3mg/ in underground water
L is decreased below 0.01mg/L, and the content of chlorobenzene is decreased below 0.5mg/L by 42.6mg/L in underground water.
Embodiment described above is only the preferred embodiment lifted to absolutely prove the present invention, protection model of the invention
Enclose not limited to this.Equivalent substitute or conversion that those skilled in the art are made on the basis of the present invention, in the present invention
Protection domain within.Protection scope of the present invention is defined by claims.
Claims (10)
1. repair system is strengthened in a kind of organic contamination place, it is characterised in that including：Extraction system, drug-injecting system, heating
System and obstruct repair layer；
Extraction system includes horizontal extraction system and vertical extraction system；Horizontal extraction system includes：Level is laid on organic dirt
At least one extraction pipe on the ground in place is contaminated, an open end of extraction pipe connects an extraction device, takes out by pipeline
The port for carrying remaining open end of pipeline is coated with the filter membrane for preventing solid to be pumped into；Vertical extraction system includes：Vertically it is opened in
At least one extraction well of the underground in the organic contamination place, the bottom of extraction well is located at saturated zone, in extraction well
Bottom is provided with the filter screen for preventing solid to be pumped into, and extraction well upper end closed simultaneously connects extraction device；
Drug-injecting system includes drug infusion device, and drug infusion device connects the extraction well by pipeline；
Heating system includes at least one heated well of the underground for being vertically opened in the organic contamination place, heated well
Lower end is located at the lower section of the bottommost pollution soil layer in organic contamination place；Heated well connects heater；
Repair layer is intercepted, it includes that surface intercepts repair layer and vertical divider repair layer；Surface intercepts repair layer and is covered in extracting
On pipeline；Vertical divider repair layer, it is vertically set around organic contaminated site, and the upper end of vertical divider repair layer is located at ground
On, the lower end of underground vertical repair layer is not higher than the lower end of heated well.
2. repair system is strengthened in organic contamination place according to claim 1, it is characterised in that the heated well is many
It is individual, set around the extraction well.
3. repair system is strengthened in organic contamination place according to claim 1, it is characterised in that the horizontal extraction system
Extraction pipe include extracting main and multiple extracting branch pipes, extracting main and extracting branch pipe combine shape by three-way pipe
Into the extraction pipe of herringbone form；The one end for extracting main connects an extraction device, and other end port is provided with filter membrane, each extracting branch
The open end port of pipe is provided with filter membrane.
4. repair system is strengthened in organic contamination place according to claim 1, it is characterised in that the surface intercepts repairs
Layer includes the metalling, repair materials layer and the surface coating that are sequentially coated on from bottom to top on extraction pipe；The vertical resistance
Include the vertical metalling set around organic contaminated site and the repair materials layer around the setting of metalling outside every repair layer.
5. organic contamination place according to claim 4 reinforcing repair system, it is characterised in that the repair materials layer is
For the sustained release layer of oxidized material of soil remediation, thickness is 0.5-1m.
6. organic contamination place according to claim 4 reinforcing repair system, it is characterised in that the surface coating is
Insulating concrete layer, its thickness is not less than 10cm.
7. repair system is strengthened in organic contamination place according to claim 4, it is characterised in that the thickness of metalling is not low
In 10cm.
8. repair system is strengthened in organic contamination place according to claim 1, it is characterised in that the filter of the extraction pipe
Film is stainless steel filtering net or high-temperature filter cloth；The filter screen of the extracting bottom is stainless steel filtering net.
9. repair system is strengthened in organic contamination place according to claim 1, it is characterised in that the well casing of the heated well
It is steel pipe.
10. the renovation technique of repair system is strengthened in the organic contamination place described in any one of claim 1 ~ 9, it is characterised in that
Comprise the following steps：
After organic pollution place sets organic contaminated site reinforcing repair system, open heater and heated well is added
Extraction system is opened in heat, heating simultaneously, and extracting dusty gas and liquid from organic contamination place carries out showering；It is necessary
When, vertical extraction system is closed, medicament is then repaired to addition in extraction well by drug infusion device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611218809.7A CN106734167A (en) | 2016-12-26 | 2016-12-26 | Strengthen repair system and technique in a kind of organic contamination place |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611218809.7A CN106734167A (en) | 2016-12-26 | 2016-12-26 | Strengthen repair system and technique in a kind of organic contamination place |
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| CN106734167A true CN106734167A (en) | 2017-05-31 |
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ID=58926791
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611218809.7A Pending CN106734167A (en) | 2016-12-26 | 2016-12-26 | Strengthen repair system and technique in a kind of organic contamination place |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107350278A (en) * | 2017-07-18 | 2017-11-17 | 中国地质大学（武汉） | Collaboration removes the in-situ remediation system and method for soil and groundwater organic pollution |
| CN107671116A (en) * | 2017-11-16 | 2018-02-09 | 北京高能时代环境技术股份有限公司 | A kind of improved organic material contaminated soil or underground water In-situ resistance heating hot repair complex system and hot restorative procedure |
| CN107685074A (en) * | 2017-10-17 | 2018-02-13 | 杰瑞环保科技有限公司 | soil thermal desorption processing system and processing method |
| CN107685072A (en) * | 2017-09-26 | 2018-02-13 | 上海格林曼环境技术有限公司 | A kind of method of concentrated combustion formula original position thermal desorption reparation for contaminated site |
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| CN107685072A (en) * | 2017-09-26 | 2018-02-13 | 上海格林曼环境技术有限公司 | A kind of method of concentrated combustion formula original position thermal desorption reparation for contaminated site |
| CN107685074A (en) * | 2017-10-17 | 2018-02-13 | 杰瑞环保科技有限公司 | soil thermal desorption processing system and processing method |
| CN107989119A (en) * | 2017-11-14 | 2018-05-04 | 中电建水环境治理技术有限公司 | Utilize the method and system that polluted underground water is collected with pressure-reduction level transverse tube |
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| CN109108059A (en) * | 2018-07-31 | 2019-01-01 | 中交天津港湾工程研究院有限公司 | Multiphase for coastal ocean soil pollution control extracts separator and application method |
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| CN111842461A (en) * | 2019-12-23 | 2020-10-30 | 武汉瑞景环境修复工程有限公司 | In-situ thermal spraying soil remediation system |
| CN111069264A (en) * | 2019-12-31 | 2020-04-28 | 北京建工环境修复股份有限公司 | In-situ thermal desorption repair system and repair method for polluted site |
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