CN108655166A - A kind of method of rehabilitating soil pollution - Google Patents
A kind of method of rehabilitating soil pollution Download PDFInfo
- Publication number
- CN108655166A CN108655166A CN201810220674.0A CN201810220674A CN108655166A CN 108655166 A CN108655166 A CN 108655166A CN 201810220674 A CN201810220674 A CN 201810220674A CN 108655166 A CN108655166 A CN 108655166A
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- Prior art keywords
- pipe
- soil
- leachate collection
- perforated pipe
- contaminated soil
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000003900 soil pollution Methods 0.000 title claims abstract description 33
- 239000002689 soil Substances 0.000 claims abstract description 124
- 239000003814 drug Substances 0.000 claims abstract description 53
- 230000004888 barrier function Effects 0.000 claims abstract description 23
- 238000005056 compaction Methods 0.000 claims description 28
- 238000007569 slipcasting Methods 0.000 claims description 9
- 239000010408 film Substances 0.000 claims description 6
- 238000000280 densification Methods 0.000 claims description 4
- 229910001385 heavy metal Inorganic materials 0.000 claims description 3
- 239000010409 thin film Substances 0.000 claims description 3
- 238000011026 diafiltration Methods 0.000 claims description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims 1
- 239000011780 sodium chloride Substances 0.000 claims 1
- 239000003344 environmental pollutant Substances 0.000 abstract description 22
- 231100000719 pollutant Toxicity 0.000 abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 238000006243 chemical reaction Methods 0.000 abstract description 12
- 238000005516 engineering process Methods 0.000 abstract description 8
- 230000008595 infiltration Effects 0.000 abstract description 3
- 238000001764 infiltration Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 26
- 238000005553 drilling Methods 0.000 description 14
- 239000002002 slurry Substances 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- 239000011083 cement mortar Substances 0.000 description 6
- 230000035484 reaction time Effects 0.000 description 6
- 238000007711 solidification Methods 0.000 description 6
- 230000008023 solidification Effects 0.000 description 6
- 239000004615 ingredient Substances 0.000 description 5
- 229940079593 drug Drugs 0.000 description 4
- 239000000706 filtrate Substances 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 3
- 230000000505 pernicious effect Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 238000009418 renovation Methods 0.000 description 2
- 239000008107 starch Substances 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 241000193449 Clostridium tetani Species 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000305071 Enterobacterales Species 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 231100000749 chronicity Toxicity 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000012864 cross contamination Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000003802 soil pollutant Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 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
- B09C2101/00—In situ
Landscapes
- 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 methods of rehabilitating soil pollution, include the following steps：S1, impervious barrier is set in the bottom of contaminated soil；S2, one layer of leachate collection perforated pipe is set in the top of the bottom of contaminated soil, impervious barrier, is connected to leachate collecting device, leachate collecting device is arranged in the lower section of leachate collection pipe；S3, medicine feeding hole is bored on contaminated soil, dosing perforated pipe is provided in medicine feeding hole；S4, medicament is added to contaminated soil surface.The method of the rehabilitating soil pollution of the present invention is under the premise of not disturbing contaminated soil, Anti-seeping technology first is carried out to soil bottom, purpose is to prevent the pollutant in soil from entering in not contaminated underlying soil and underground water by infiltration water, pharmacy response is prevented to enter in underlying soil and underground water simultaneously, by boring medicine feeding hole in contaminated soil, and dosing perforated pipe is set in medicine feeding hole, facilitate follow-up medicament that can be passed to each position of contaminated soil, makes pollutant reaction therein uniform.
Description
Technical field
The invention belongs to solid pollutant processing technology fields, are related to a kind of method of rehabilitating soil pollution
Background technology
1, soil pollution is just by increasingly extensive concern, mainly there is the type of pollutant by property point in native Reel pollutions:
1) organic substance, wherein quantity is larger and compares that the serious is chemical pesticide, especially organochlorine, organophosphor agricultures
Medicine；
2) nitrogen and phosphorus element chemical fertilizer；
3) heavy metals such as chromium, copper, zinc, lead, mercury, cadmium, arsenic；
4) the harmful microorganisms class such as enterobacteria, clostridium tetani, enterozoon；
5) industrial production, especially pharmaceutical chemical industry produce residue.
2, soil pollution has the characteristics that:
1) concealment or latency；
2) irreversibility and chronicity.
3, presently, there are many methods to remove soil pollutant, such as：It digs out after later burning, in-situ solidifying, life
Object processing, chemical addition agent deactivate, radio frequency heating etc..Although these ten thousand methods obtain certain effect in some applications,
Workload is very big, some methods may be very expensive and unpractical, exists simultaneously processing and is not thorough, to underground water or
Unpolluted soil generates secondary pollution, is possible to generate pollution to air in processing procedure.
Therefore, it is necessary to a kind of methods of new rehabilitating soil pollution to solve the above problems.
Invention content
Goal of the invention：The purpose of the present invention is in view of the drawbacks of the prior art, provide a kind of method of rehabilitating soil pollution.
Technical solution：In order to solve the above technical problems, the method for the rehabilitating soil pollution of the present invention uses following technical side
Case：
A kind of method of rehabilitating soil pollution, includes the following steps：
S1, impervious barrier is set in the bottom of contaminated soil；
S2, one layer of leachate collection perforated pipe, the leachate collection perforated pipe are set in the bottom of the contaminated soil
It is arranged in the top of the impervious barrier, the leachate collection perforated pipe is connected to leachate collecting device, the leachate collection
Device is arranged in the lower section of the leachate collection pipe；
S3, medicine feeding hole is bored on the contaminated soil, the dosing perforated pipe is provided in the medicine feeding hole；
S4, medicament is added to the contaminated soil surface.
Further, the surface of the contaminated soil is arranged fluted or surface surrounding and continuous water-seal pile is arranged.
Liquid is added in the groove that groove or water-seal pile are formed, liquid is entered by soil surface, medicine feeding hole and dosing perforated pipe
In contaminated soil, to realize that liquid is reacted with the complete of contaminated soil.
Further, the setting of medicament surface described in step S4 thin film is covered.To prevent pernicious gas from overflowing
Go out into air, while preventing rainwater from largely invading in the soil handled.
Further, in step S2 further include leachate collection delivery pipe, oozed described in the leachate collection Guan Junyu
Filtrate collects delivery pipe connection.Facilitated using leachate collection delivery pipe and exports leachate collection pipe herb liquid.
Further, it is provided with valve on leachate collection pipe described in step S2.By on leachate collection pipe
Valve is set, the drain time of percolate can be controlled, to reach the complete reaction time of liquid and pollutant in soil.
Further, it is provided with total valve on the leachate collection delivery pipe.By in leachate collection delivery pipe
Upper setting valve, can control the drain time of percolate, to reach the complete reaction time of liquid and pollutant in soil.
Further, the top and both sides of the leachate collection pipe are both provided with leachate collection hole.Facilitate pollution
Soil herb liquid penetrates into leachate collection pipe.
Further, further include compaction grouting perforated pipe in step S1, the compaction grouting perforated pipe is arranged described
At impervious barrier.By injecting solidification slurry, such as cement mortar in compaction grouting perforated pipe, the cured impervious barrier in bottom is formed.
Further, the compaction grouting perforated pipe is criss-cross arranged for two layers.
Further, the distance between adjacent described compaction grouting perforated pipe is 1200mm in horizontal direction, vertical side
The distance between upward two layers of described compaction grouting perforated pipe is 800mm.
Further, the leachate collection perforated pipe is heat medium pipe, electrothermal tube or heat pipe.In order to contaminated soil
It is used when being handled using heating.
Further, the contaminated soil is salt-soda soil, basic soil or heavy-metal contaminated soil.
Further, it is provided with strainer on the outside of the leachate collection perforated pipe.
Further, the film is aerial setting.
Advantageous effect：The method of the rehabilitating soil pollution of the present invention is not under the premise of disturbing contaminated soil, first to soil
Earth bottom carry out Anti-seeping technology, soil base impervious processing be in order to prevent the pollutant in soil by infiltration water enter not by
In the underlying soil and underground water of pollution, while pharmacy response being prevented to enter in underlying soil and underground water, by Polluted Soil
Medicine feeding hole is bored in earth, and dosing perforated pipe is set in medicine feeding hole, facilitates subsequent medicament that can be passed to each of contaminated soil
A position makes the pollutant reaction in contaminated soil uniform, and leachate collecting device is communicated to by leachate collection pipe, convenient
The content of the dynamic observation concentration of percolate, pH value and each ingredient to determine whether need is offerd medicine again or diffusate recharge.
Description of the drawings
Fig. 1 is the structural schematic diagram of the method for the rehabilitating soil pollution of the present invention；
Fig. 2 is the stereogram of the method for the rehabilitating soil pollution of the present invention；
Fig. 3 is the structural schematic diagram of the slip casting perforated pipe of the present invention；
Fig. 4 is the structural schematic diagram of the leachate collection pipe of the present invention.
Specific implementation mode
Present invention is further described in detail with specific implementation mode below in conjunction with the accompanying drawings：
It please refers to Fig.1 with shown in Fig. 2, the method for rehabilitating soil of the invention pollution includes the following steps：
S1, impervious barrier is set in the bottom of contaminated soil；Preferably, further include compaction grouting perforated pipe 1, compaction grouting is worn
Hole pipe 1 is arranged at impervious barrier.By injecting solidification slurry, such as cement mortar in compaction grouting perforated pipe, it is cured to form bottom
Impervious barrier.Compaction grouting perforated pipe 1 is criss-cross arranged for two layers.
Preferably, the distance between adjacent compaction grouting perforated pipe 1 is 1200mm in horizontal direction, two layers on vertical direction
The distance between compaction grouting perforated pipe 1 is 800mm.
S2, one layer of leachate collection perforated pipe 3 is set in the bottom of contaminated soil, the setting of leachate collection perforated pipe 3 exists
The top of impervious barrier, leachate collection perforated pipe 3 are connected to leachate collecting device, and leachate collecting device 4 is arranged in percolate
The lower section of collecting pipe 3；Preferably, further include leachate collection delivery pipe 5, leachate collection pipe 3 is discharged with leachate collection
Pipe 5 is connected to.Facilitated using leachate collection delivery pipe and exports leachate collection pipe herb liquid.
Preferably, it is provided with valve on leachate collection pipe 3.By the way that valve is arranged on leachate collection pipe 3, can control
The drain time of percolate processed, to reach the complete reaction time of liquid and pollutant in soil.On leachate collection delivery pipe 5
It is provided with total valve.By the way that valve is arranged on leachate collection delivery pipe 5, the drain time of percolate can be controlled, to reach
To the complete reaction time of liquid and pollutant in soil.
S3, medicine feeding hole is bored on contaminated soil, dosing perforated pipe 2 is provided in medicine feeding hole；Preferably, the table of contaminated soil
Face is arranged fluted or surface surrounding and continuous water-seal pile 7 is arranged.Medicine is added in the groove that groove or water-seal pile are formed
Liquid, liquid are entered by soil surface, medicine feeding hole and dosing perforated pipe in contaminated soil, to realize liquid and contaminated soil
Reaction completely.
S4, medicament is added to contaminated soil surface.Preferred medicament surface setting thin film is covered.It prevents a large amount of
Rainwater invades and pernicious gas leaks, and causes secondary pollution.
The method of the rehabilitating soil pollution of the present invention first carries out soil bottom under the premise of not disturbing contaminated soil
Anti-seeping technology, soil base impervious processing prevent be in order to prevent the pollutant in soil by infiltration water enter it is unpolluted
In underlying soil and underground water, while pharmacy response being prevented to enter in underlying soil and underground water, by being bored in contaminated soil
Medicine feeding hole, and dosing perforated pipe is set in medicine feeding hole, facilitate subsequent medicament that can be passed to each position of contaminated soil,
It makes the pollutant reaction in contaminated soil uniform, leachate collecting device is communicated to by leachate collection pipe, dynamic is facilitated to see
The content of the concentration of percolate, pH value and each ingredient is surveyed to determine whether needing to offer medicine again or diffusate recharge, and judges soil
The degradation situation of pollutant in earth.
The present invention solves the problems, such as soil pollution reparation, by repairing well by in-situ treatment contaminated soil
Soil can directly use.
This method renovation technique is simple, and treatment effect is excellent, cost of investment is low, processing time is short, can fundamentally solve
The environmental risk hidden danger that certainly contaminated soil generates, and can realize recycling for resource.
It please refers to Fig.1, shown in Fig. 2, Fig. 3 and Fig. 4, the invention also discloses a kind of devices of rehabilitating soil pollution, including
The bottom of impervious barrier and dosing perforated pipe 2, contaminated soil 6 is provided with impervious barrier, and the vertical direction of contaminated soil 6 bores medicine feeding hole,
It is provided with dosing perforated pipe 2 in medicine feeding hole, one end that dosing perforated pipe 2 stretches into contaminated soil 6 is located at the top of impervious barrier.
Wherein, it is preferred that further include leachate collection pipe 3, leachate collection pipe 3 be arranged in the bottom of contaminated soil 6 and
Between impervious barrier.By leachate collection pipe collect the content of the percolate dynamic observation concentration of percolate, PH and each ingredient come
Judge whether to need to offer medicine again or diffusate recharge.Further include leachate collecting device 4, the connection of leachate collection pipe 3 is oozed
Filtrate collection device 4, leachate collecting device 4 are arranged in the lower section of leachate collection pipe 3.It is connected to and is oozed by leachate collection pipe
The content of Filtrate collection device, the dynamically concentration of observation percolate, PH and each ingredient is to determine whether need to offer medicine or ooze again
Go out liquid recharge.Further include leachate collection delivery pipe 5, leachate collection pipe 3 is connected to leachate collection delivery pipe 5.It utilizes
Leachate collection delivery pipe, which facilitates, exports leachate collection pipe herb liquid.It is provided with valve on leachate collection pipe 3.By
Valve is set on leachate collection pipe 3, the drain time of percolate can be controlled, to reach the complete of liquid and pollutant in soil
The full response time.It is provided with total valve on leachate collection delivery pipe 5.By the way that valve is arranged on leachate collection delivery pipe 5,
The drain time that percolate can be controlled, to reach the complete reaction time of liquid and pollutant in soil.Leachate collection pipe 3
Top and both sides be both provided with leachate collection hole.Liquid after being reacted in contaminated soil is facilitated to penetrate into leachate collection pipe.
Preferably, the surface fluted or surface surrounding of setting of contaminated soil 6 is provided with water-seal pile 7.In groove or
Liquid is added in the groove that water-seal pile is formed, liquid is entered by soil surface, medicine feeding hole and dosing perforated pipe in contaminated soil,
To realize that liquid is reacted with the complete of contaminated soil.
Preferably, further include compaction grouting perforated pipe 1, the setting of compaction grouting perforated pipe 1 is at impervious barrier.By in densification
Slip casting perforated pipe injection solidification slurry, such as cement mortar, form the cured impervious barrier in bottom.Preferably, 1 liang of compaction grouting perforated pipe
Layer is criss-cross arranged.The distance between adjacent compaction grouting perforated pipe 1 is 1200mm in horizontal direction, two layers on vertical direction
The distance between compaction grouting perforated pipe 1 is 800mm.
The method of the rehabilitating soil pollution of the present invention enables medicament to circulate by the dosing perforated pipe being arranged in soil
To each position of contaminated soil, make the pollutant reaction inside contaminated soil uniform, and in the bottom of contaminated soil
Impervious barrier is set, cross contamination is prevented.
Embodiment 1
1, at the lower part about 500mm of contaminated soil, two layers of crisscross compaction grouting perforated pipe 1, densification are arranged
Slip casting perforated pipe 1 level interval 1200mm and interlamellar spacing 800mm.Wherein, the side of compaction grouting perforated pipe 1 is provided with slip casting
Hole, pitch-row 500mm, aperture 10mm and the caliber 100mm of injected hole.
2, solidification slurry (cement mortar etc.) is injected by the compaction grouting perforated pipe 1 of arrangement, forms the cured impervious barrier in bottom.
3. arranging one layer of close leachate collection perforated pipe (leachate collection perforated pipe for connecing row in contaminated soil bottom
Top and two side opening), leachate collection perforated pipe one end connect leachate collection delivery pipe, reach leachate collection dress
It sets, while can be used to detect inside the contaminated soil of perforated pipe whether the reaction was complete, whether pollutant load reaches country
The standard of permission.
4, soil, vertical drilling is divided to form multiple row perforated pipe pollution part.For delivering medicament.
5, medicine system is set on contaminated soil ground, digs out the soil of deep about 50mm, be allowed to be formed concave surface and (or utilize
Engineering technology is in continuous water-seal pile of the soil surface arrangement beyond soil surface 50mm), prevent medicament from leaking, so that medicament passes through
Vertical perforated pipe reaches contaminated each position, medicament is made fully to be reacted with pollutant.And film is maked somebody a mere figurehead in top layout,
It prevents reactant from leaking, causes secondary pollution, prevent rainwater from invading.If using evaporation technique, more to bind, and under overlay film
Portion sets steam collecting system.
6, the arrangement of bottom cured layer is formed using trombone slide technology and slip casting, is provided with leakage hole bottom on tube wall and both sides are opened
Hole；
A method of it arranging that compaction grouting pipe and leachate collection discharge perforated pipe in soil, includes the following steps：
1, drilling rod track is set, including deflecting line segment, horizontal segment and outlet section；
2, drilling rod is inserted into deflecting line segment, completes the drilling of deflecting line segment；
3, drilling rod is rotated, feeds forward, completes the drilling of horizontal segment, drilling rod is allowed to reach outlet section；
4, it is compaction grouting perforated pipe by bit change-over in outlet section, along boring direction counter motion, completes bottom solidification
The arrangement of layer Grouting Pipe.
7, by the medicine system being arranged in soil, so that medicament is passed to each position of contaminated soil, allow
Pollutant reaction inside contaminated soil is uniform, is connected to leachate collecting device by leachate collection pipe, dynamic is observed
The content of the concentration of percolate, PH and each ingredient to determine whether need is offerd medicine again or diffusate recharge.
8, the present invention solves the problems, such as soil pollution reparation, by repairing well by in-situ treatment contaminated soil
Multiple soil can be used directly, and in addition renovation technique is simple, at low cost.
9, it protects
1 forms contaminated soil base impervious layer, injection using trombone slide technical arrangement bottom compaction grouting perforated pipe and slip casting
Before permeability-reducing admixture, a small amount of pharmacy response also can be first injected；
2 in slip casting soil vertical drilling arrange dosing perforated pipe, form the liquid water of 200mm or so in soil surface
Head；
3 base impervious layer top and contaminated soil lower part trombone slide technical arrangement leachate collection perforated pipe；
4 use are arranged in being connected with the liquid collecting perforated pipe in contaminated soil in liquid collecting work nest, and are set on manifold
Control valve controls the drain time of percolate, to reach the complete reaction time of liquid and pollutant in soil；
5 processing regions are divided to be controlled by contaminated area and pollution depth, and the region length of side controls within 150 meters；
6 in order to smoothly implement pipe in pipe pulling construction, and the outer side view trombone slide of water blocking retaining wall requires slope.The pollution that its slope generates
Soil ploughs under processing region and is handled；
7 extents of reaction are controlled by the medicament in detection collector tube.Reaction is completed, vertical chemical feed pipe and leachate collection row
Pipe Chinese medicine is put to be both needed to extract out.
Embodiment 2：
A kind of method of rehabilitating soil pollution, includes the following steps
S1 does antiseepage and curing process, using trombone slide pore-forming slurry injection technique at the distance about 500mm of contaminated soil lower part
Contaminated soil bottom successively from top to bottom, form two layers of cloth and starch Kong Zhen, then by cloth starch the perforation Grouting Pipe in hole by
Layer pressurization injection cures medicine slurry (cement mortar etc.), and leakage hole, the soil solidification medicine slurry are provided on the tube wall of the perforation Grouting Pipe
(cement mortar etc.) forms impervious barrier after being flowed out in the leakage hole；Wherein, grouting pressure is not less than 15m water columns, and the slip casting time is not
Less than 24 hours；Leakage hole in perforation Grouting Pipe is provided with two rows of and bottom along the length direction of perforation Grouting Pipe and a row is arranged,
And side wall two rows leakage hole is separately positioned on the tube wall of perforation Grouting Pipe relative position, leakage hole aperture is 10m, leakage hole spacing
500m, and two rows of leakage holes are staggeredly arranged.Preferably, perforation Grouting Pipe caliber be 100m, interlamellar spacing 800m and this wear
The hole centre-to-centre spacing of hole Grouting Pipe is set as 1200mm；
S2 arranges that one layer of compact arranged leachate collection perforated pipe (is worn in contaminated soil bottom and impervious barrier top
Hole pipe top and two side opening), connect leachate collection manifold, leachate collection manifold in one end of leachate collection perforated pipe
It is connected to leachate collecting device；The setting of leachate collection perforated pipe is in contaminated soil, one end of leachate collection perforated pipe
It is provided with percolate outlet, the percolate outlet is connect with percolate tapping equipment, leachate collection perforation pipe device setting
In contaminated soil, leachate collection perforation tube wall, both sides and top are provided with leakage hole.
Leachate collecting device can be used to detect inside contaminated soil whether the reaction was complete simultaneously, by being oozed to collection
The chemical detection of filtrate is to determine whether the reaction was complete, if detection discovery reaction completely, needs the percolate to collection
Diffusate recharge is carried out to soil, is allowed to fully react.
Wherein, the method that leachate collection perforated pipe is arranged in soil, includes the following steps：
(1):Drilling rod track is set, including deflecting line segment, horizontal segment and outlet section；
(2):Drilling rod is inserted into deflecting line segment, completes the drilling of deflecting line segment；
(3):Drilling rod is rotated, drilling rod is allowed to reach outlet section；
(4):It is leachate collection perforated pipe by bit change-over in outlet section, along boring direction counter motion, completes diafiltration
Liquid collects the arrangement of perforated pipe.
S3, is arranged continuous water-seal pile or digs out part soil and be allowed to form groove along the periphery of contaminated soil, to prevent
Medicament leaks；Groove is advisable as dose-storage system, depth with 500mm.Wherein, water-seal pile enters the depth of undisturbed soil about
500mm is more than 15Mpa to the external force that the top of water-seal pile carries out static compaction or hammers densification, and the compacting duration is no less than 8
Hour.
S4 forms multiple row dosing perforated pipe, so that medicament passes through dosing perforated pipe, energy to contaminated soil vertical drilling hole
It is enough uniformly to reach each position for being contaminated soil, so that medicament is fully reacted with pollutant；Utilizing works technology is in contaminated soil
The vertical dosing perforated pipe of arrangement multiple row in earth reaches contaminated each portion so that medicament is by vertical dosing perforated pipe
Position, makes medicament fully be reacted with pollutant；The caliber of dosing perforated pipe about 100mm；
S5 carries out rainwater-proof at the top of contaminated soil and prevents the excessive processing of pernicious gas：I.e. in contaminated soil table
Face frame sky film laying covers, and prevents reactant from leaking, causes secondary pollution.Wherein, film is waterproof and anticorrosion.
Claims (14)
1. a kind of method of rehabilitating soil pollution, which is characterized in that include the following steps：
S1, impervious barrier is set in the bottom of contaminated soil；
S2, one layer of leachate collection perforated pipe (3), the leachate collection perforated pipe are set in the bottom of the contaminated soil
(3) it is arranged in the top of the impervious barrier, the leachate collection perforated pipe (3) is connected to leachate collecting device, the diafiltration
Liquor collecting device (4) is arranged in the lower section of the leachate collection pipe (3)；
S3, medicine feeding hole is bored on the contaminated soil, the dosing perforated pipe (2) is provided in the medicine feeding hole；
S4, medicament is added to the contaminated soil surface.
2. the method for rehabilitating soil pollution as described in claim 1, which is characterized in that the surface of the contaminated soil is provided with
Continuous water-seal pile (7) is arranged in the surrounding on groove or surface.
3. the method for rehabilitating soil pollution as described in claim 1, which is characterized in that medicament surface described in step S4 is arranged
Thin film is covered.
4. the method for rehabilitating soil pollution as described in claim 1, which is characterized in that further include leachate collection in step S2
Delivery pipe (5), the leachate collection pipe (3) are connected to the leachate collection delivery pipe (5).
5. the method for rehabilitating soil pollution as described in claim 1, which is characterized in that leachate collection pipe described in step S2
(3) valve is provided on.
6. the method for rehabilitating soil pollution as claimed in claim 4, which is characterized in that the leachate collection delivery pipe (5)
On be provided with total valve.
7. the method for rehabilitating soil as described in claim 1 pollution, which is characterized in that the leachate collection pipe (3) it is upper
Side and both sides are both provided with leachate collection hole.
8. the method for rehabilitating soil pollution as described in claim 1, which is characterized in that further include that compaction grouting is worn in step S1
(1) is managed in hole, and the compaction grouting perforated pipe (1) is arranged at the impervious barrier.
9. the method for rehabilitating soil pollution as claimed in claim 8, which is characterized in that the compaction grouting perforated pipe (1) two
Layer is criss-cross arranged.
10. the method for rehabilitating soil pollution as claimed in claim 9, which is characterized in that the adjacent densification in horizontal direction
The distance between slip casting perforated pipe (1) is 1200mm, the distance between two layers of described compaction grouting perforated pipe (1) on vertical direction
For 800mm.
11. the method for rehabilitating soil pollution as described in claim 1, which is characterized in that the leachate collection perforated pipe (3)
For heat medium pipe, electrothermal tube or heat pipe.
12. the method for rehabilitating soil pollution as described in claim 1, which is characterized in that the contaminated soil (6) is saline and alkaline
Ground, basic soil or heavy-metal contaminated soil.
13. the method for rehabilitating soil pollution as described in claim 1, which is characterized in that the leachate collection perforated pipe (3)
Outside be provided with strainer.
14. the method for rehabilitating soil pollution as claimed in claim 3, which is characterized in that the film is aerial setting.
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| CN201810220674.0A CN108655166A (en) | 2018-03-16 | 2018-03-16 | A kind of method of rehabilitating soil pollution |
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| CN201810220674.0A CN108655166A (en) | 2018-03-16 | 2018-03-16 | A kind of method of rehabilitating soil pollution |
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| CN201810220674.0A Pending CN108655166A (en) | 2018-03-16 | 2018-03-16 | A kind of method of rehabilitating soil pollution |
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| CN109759437A (en) * | 2019-01-21 | 2019-05-17 | 胡鹏程 | A kind of chemical pollution soil remediation construction method and constructing device |
| CN112122327A (en) * | 2020-08-20 | 2020-12-25 | 杨晓秋 | Prosthetic devices based on soil thermal desorption repair technique |
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