CN108453129A - Contaminated soil steam extracts repair system and method - Google Patents
Contaminated soil steam extracts repair system and method Download PDFInfo
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- CN108453129A CN108453129A CN201710091034.XA CN201710091034A CN108453129A CN 108453129 A CN108453129 A CN 108453129A CN 201710091034 A CN201710091034 A CN 201710091034A CN 108453129 A CN108453129 A CN 108453129A
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- 239000002689 soil Substances 0.000 title claims abstract description 94
- 238000000034 method Methods 0.000 title claims abstract description 27
- 230000008439 repair process Effects 0.000 title claims abstract description 22
- 239000000284 extract Substances 0.000 title claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 66
- 239000003876 biosurfactant Substances 0.000 claims abstract description 41
- 238000000605 extraction Methods 0.000 claims abstract description 38
- 239000005416 organic matter Substances 0.000 claims abstract description 22
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 19
- 238000002156 mixing Methods 0.000 claims abstract description 13
- 239000007921 spray Substances 0.000 claims description 22
- 239000002699 waste material Substances 0.000 claims description 16
- 239000007864 aqueous solution Substances 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 11
- 238000000889 atomisation Methods 0.000 claims description 10
- 230000008859 change Effects 0.000 claims description 8
- 238000004065 wastewater treatment Methods 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 7
- 239000013039 cover film Substances 0.000 claims description 6
- 238000011835 investigation Methods 0.000 claims description 5
- 238000010992 reflux Methods 0.000 claims description 5
- 235000014171 carbonated beverage Nutrition 0.000 claims description 4
- 238000009833 condensation Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims description 3
- 230000004060 metabolic process Effects 0.000 claims description 3
- 239000012466 permeate Substances 0.000 claims description 3
- 239000002351 wastewater Substances 0.000 claims description 3
- 239000003595 mist Substances 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000011065 in-situ storage Methods 0.000 abstract description 8
- 238000010828 elution Methods 0.000 abstract description 6
- 239000000356 contaminant Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 238000005067 remediation Methods 0.000 abstract 1
- 238000003900 soil pollution Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000004094 surface-active agent Substances 0.000 description 3
- HVCOBJNICQPDBP-UHFFFAOYSA-N 3-[3-[3,5-dihydroxy-6-methyl-4-(3,4,5-trihydroxy-6-methyloxan-2-yl)oxyoxan-2-yl]oxydecanoyloxy]decanoic acid;hydrate Chemical compound O.OC1C(OC(CC(=O)OC(CCCCCCC)CC(O)=O)CCCCCCC)OC(C)C(O)C1OC1C(O)C(O)C(O)C(C)O1 HVCOBJNICQPDBP-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229930186217 Glycolipid Natural products 0.000 description 2
- 102000004895 Lipoproteins Human genes 0.000 description 2
- 108090001030 Lipoproteins Proteins 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
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- 125000001931 aliphatic group Chemical group 0.000 description 2
- 150000001450 anions Chemical class 0.000 description 2
- 238000003795 desorption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 125000004185 ester group Chemical group 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 101100314150 Caenorhabditis elegans tank-1 gene Proteins 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000003694 hair properties Effects 0.000 description 1
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- 239000007924 injection Substances 0.000 description 1
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- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 description 1
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- 238000003911 water pollution Methods 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
- B09C1/06—Reclamation of contaminated soil thermally
-
- 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)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Include steam-water mixing system and gas phase extraction system the invention discloses a kind of contaminated soil steam extraction repair system and method, the repair system；After biosurfactant is dissolved completely in water and forming steam water interface by steam-water mixing system, the steam water interface is injected to contaminated soil using the air injector well of gas phase extraction system, elution in situ is carried out to contaminated soil；Elution technique in situ changes the dissolubility of the existing forms and organic matter of heavy metal-polluted soil, so that heavy metal-polluted soil is more converted to dissolvable state, organic matter more switchs to water-soluble state；By gas phase extraction system by contaminants removal soluble in the soil eluted in situ.System and method using the present invention handles contaminated soil problem, enhances repairing effect, improves contaminant removal efficiency.Present invention process is succinct, system operatio is simple, at low cost, efficient, non-secondary pollution, is especially suitable for the site remediation of heavy metal and volatile organic matter pollution.
Description
Technical field
The present invention relates to the recovery fields of contaminated soil, relate in particular to a kind of contaminated soil steam extraction repair system
And method.
Background technology
In order to ensure that economy continues efficient fast development, China has paid great efforts, including environmental disruption generate it is each
Kind problem.Water pollution, atmosphere pollution, soil pollution and solid waste problem are gradually brought into schedule, and the people and national government are caused
Concern.Wherein Soil Environmental Pollution is since its pollution is with concealment, latency, accumulation property, region and irreversibility and length
Phase property, and lead to the problem for administering length of difficult and period.
On April 17th, 2014, Environment Protect in China portion and Ministry of Land and Resources, which combine, to issue《National soil pollution situation tune
Look into bulletin》, this is China's national Soil Pollution Investigation for the first time, time from April, 2005 in December, 2013, points for investigation
Position covering is all ploughed, part forest land, meadow, unused land and construction land, about 6,300,000 square kilometres of factual survey area.
Bulletin content shows that national soil environment situation totally allows of no optimist, and some areas soil pollution is heavier, arable soil environment matter
Amount causes anxiety, industry and mining discarded ground soil environment outstanding problem.The human activities such as industry and mining, agricultural and Environmental Background Values of Soils are high
Be cause soil pollution or it is exceeded the main reason for.In investigating site total quantity, the quantity of the exceeded point of contaminated soil accounts for
16.1%, wherein slightly, slightly, moderate and serious pollution point ratio be respectively 11.2%, 2.3%, 1.5% and 1.1%.
Soil chemistry pollutant type mainly divides inorganic pollution and organic contamination, wherein heavy metal and hardly degraded organic substance dirty
The harm brought is contaminated to be particularly acute.Since heavy metal and hardly degraded organic substance are not easily decomposed in soil environment, in soil environment
The amount and type of the harmful substance of accumulation are more and more, and are entered in organism by food chain, cause damages to body health.
In addition Soil Environmental Pollution also results in the yield and qualities of serious economic loss and agricultural product and declines, in addition can to water quality,
Air and soil ecosystem have an impact.
For soil environment once contaminated, the method for relying solely on cut-out pollution sources is difficult often self-regeneration, it is necessary to be used
Various effective Treatment process could eliminate real pollution.
Invention content
For the problems of the prior art, the purpose of the present invention is to provide a kind of contaminated soil steam to extract repair system
And method, it is intended to utilize the heavy metal and organic matter in biosurfactant and hot-air removal contaminated soil, technique tool
Have easy to operate, at low cost, efficient, it is fast to repair rate, the features such as bringing secondary pollution during avoiding repairing.
To achieve the goals above, technical scheme is as follows：
Contaminated soil steam extracts repair system, which is characterized in that including steam-water mixing system and gas phase extraction system；
The steam-water mixing system includes：
Store the container of biosurfactant aqueous solution；
The biosurfactant aqueous solution in the container to be atomized and forms the atomization plant of steam water interface；
Atomization plant and reservoir；
The gas phase extraction system includes：
In the air injector well that contaminated soil place is laid；Air injector well injects the steam-water mixing system to contaminated soil
The steam water interface that controlling is made；
To heat air injector well surrounding soil temperature heating device；
To the extraction well for extracting steam water interface out.
Preferably, the atomization plant includes sequentially connected pipette, sprayer, spray chamber；Further, the mist
Change room and be provided with air intake and waste liquid outlet so that the misty aqueous solution that sprayer sprays and the air entered from air intake are mixed
It closes, forms steam water interface in spray chamber, wherein flowed out from waste liquid outlet after larger droplet condensation, in case spray chamber is stifled
Plug.Further, the spray chamber is connected with air-introduced machine.Further, the waste liquid outlet is connect with waste collection tank, waste collection
Tank passes through reflux and the reservoir.
Preferably, the gas phase extraction system further includes the airtight cover film of contaminated soil place surface covering, is ensured
The good sealing property of system.
Preferably, the extraction well is connect with steam-water separator, and steam-water separator is separately connected emission-control equipment and gives up
Water treatment facilities.
Preferably, several extraction wells are evenly equipped with around the air injector well.
Preferably, the container is dissolving tank.
A kind of contaminated soil steam extraction restorative procedure, which is characterized in that include the following steps：
A, suitable biosurfactant is chosen according to site investigation result, makes biosurfactant complete in container
Fully dissolved is in water；
B, so that biosurfactant aqueous solution is formed misty state and is mixed with air by atomization plant, form carbonated drink
Mixture；
C, air injector well and extraction well are laid in contaminated soil place；
D, by the contaminated soil place around heating devices heat air injector well, the soil moisture is improved；
E, steam water interface is injected by air injector well, steam water interface is made to permeate and by contaminated soil region；
F, the steam water interface for carrying heavy metal and organic matter is extracted out by extraction well.
Preferably, in the step A biosurfactant be refer to change target heavy metal existing forms and
Change the biosurfactant that volatile organic matter is deliquescent, is generated by biological metabolism.
Preferably, the method that biosurfactant is dissolved completely in water in the step A is that alkaline matter tune is added
PH value is saved to neutrality, and is stirred.Biosurfactant classification by source be glycolipid, phosphatide, aliphatic acid, lipopeptid and lipoprotein,
It is an analog anion surfactants.Existing hydrophilic radical also has hydrophobic grouping, hydrophilic group in biosurfactant molecule
Group is mainly carboxyl, hydroxyl, ester group and other oxyacid groups, is in acidity in water.It is added after alkaline matter so that being dissolved in
The hydrophilic radical ionization equilibrium of biosurfactant in water moves right, and increases degree of ionization, lives to increase biological surface
The meltage of property agent.
Preferably, in step D, the heating soil temperature is to 50 DEG C -100 DEG C.
Preferably, after above-mentioned steps F, the steam water interface for carrying heavy metal and organic matter is delivered to steam-water separation
Device, the exhaust gas after separation are purified by emission-control equipment, and the waste water after separation is handled by wastewater treatment equipment.
The present invention is combined using soil in-situ elution technique with steam extraction recovery technique, will by steam-water mixing system
After biosurfactant is dissolved completely in water and forms steam water interface, the vapour is injected to contaminated soil using air injector well
Aqueous mixtures carry out elution in situ to contaminated soil；Elution technique in situ changes the existing forms and organic matter of heavy metal-polluted soil
Dissolubility, so that heavy metal-polluted soil is more converted to dissolvable state, organic matter more switchs to water-soluble state；It is extracted by steam
Recovery technique removes polluter (including heavy metal and organic matter) soluble in the soil eluted in situ.Using the present invention
System and method handle contaminated soil problem, enhance repairing effect, improve contaminant removal efficiency.Present invention process letter
It is clean, system operatio is simple, at low cost, efficient, non-secondary pollution, be especially suitable for heavy metal and volatile organic matter pollution field
Ground reparation.
The features of the present invention sees the detailed description of the drawings of the present case and following preferable embodiment and obtains clearly
Solution.
Description of the drawings
Fig. 1 is a kind of embodiment flow chart of contaminated soil steam extraction repair system.
Fig. 2 is a kind of contaminated soil steam extraction structural schematic diagram of embodiment of repair system.
Reference numeral：
Dissolving tank -1；Pipette -2；Sprayer -3；Spray chamber -4；Air-introduced machine -5；Waste collection tank -6；Reflux -7；
Heating device -8；Air injector well -9；Extraction well -10；Airtight cover film -11；Steam-water separator -12；Pump -13；At exhaust gas
Manage device -14；Wastewater treatment equipment -15；Contaminated soil -16.
Specific implementation mode
In order to make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to understand, tie below
Closing specific embodiment, the present invention is further explained.
Referring to Fig. 1 and 2, it includes steam-water mixing system and gas phase extraction system that contaminated soil steam, which extracts repair system mainly,
Two large divisions.
Steam-water mixing system includes dissolving tank 1, pipette 2, sprayer 3, spray chamber 4, air-introduced machine 5,6 and of waste collection tank
Reflux 7.
For storing biosurfactant aqueous solution in dissolving tank 1, biosurfactant aqueous solution can be made in advance
It must place into dissolving tank 1；Can also be to be dissolved in what water was formed by biosurfactant in dissolving tank 1.
Pipette 2, sprayer 3, spray chamber 4 are the critical pieces for constituting atomization plant, and the biological surface in dissolving tank 1 is lived
Property agent aqueous solution under the action of pump, through excessive root pipette 2 enter sprayer 3 in, since 2 internal diameter of pipette is very thin, generally
No more than 5mm, thus it is seldom into the amount of solution in sprayer 3, relatively thin spraying is formed at 3 mesohigh spray nozzle of sprayer
Drop is mixed into spray chamber 4 with air.
Spray chamber 4 is provided with air intake and waste liquid outlet so that the misty aqueous solution that sprayer 3 sprays with from air intake
The air of entrance mixes, and steam water interface is formed in spray chamber 4, wherein flowed out from waste liquid outlet after larger droplet condensation,
In order to avoid spray chamber 4 blocks.The air intake of spray chamber 4 is connected with air-introduced machine 5, to improve the efficiency of steam-water mixing.
The waste liquid outlet of spray chamber 4 is connect with waste collection tank 6, and waste collection tank 6 passes through reflux 7 and dissolving tank 1
Connection forms primary Ioops, in order to which biosurfactant aqueous solution recycles.
Gas phase extraction system includes heating device 8, air injector well 9, extraction well 10, airtight cover film 11, carbonated drink point
From device 12, pump 13, emission-control equipment 14 and wastewater treatment equipment 15.
The middle that air injector well 9 is laid in contaminated soil place is best.The steam water interface formed in spray chamber 4
Under the action of pump, enter contaminated soil 16 into air injector well 9, and by the injection of air injector well 9.
Heating device 8 is installed in contaminated soil place, to heat the surrounding soil of air injector well；Heating soil temperature
Degree is to 50 DEG C -100 DEG C.
Extraction well 10 is laid with around contaminated soil place, the steam water interface of heavy metal and organic matter will be carried
Extraction.The number of extraction well 10 can be configured according to actual conditions.In the present embodiment, around air injector well
It is furnished with multiple extraction wells 10.
Airtight cover film 11 need to be covered on contaminated soil surface, ensures the good sealing property of system, further increases pumping
Carry the extraction efficiency of well 10.After soil heating, organic matter therein etc. has volatile substance is heated can overflow earth's surface, covers
After airtight cover film, the gas volatilized can only be overflowed by extraction well, and be collected centralized processing.
Extraction well 10 is connect by pump 13 with steam-water separator 12, and steam-water separator 12 is separately connected emission-control equipment 14
And wastewater treatment equipment 15.Emission-control equipment 14 adds alkali to return after using activated carbon adsorption, wastewater treatment equipment 15 to use concentration
Heavy metal is received, for specific heavy metal, optimal pH range is determined according to precipitation dissolution equilibrium.
The restorative procedure that repair system is extracted using the contaminated soil steam, is included the following steps：
A, suitable biosurfactant is chosen according to site investigation result, which is to refer to change
Become the existing forms of target heavy metal and changes the Bio-surface active that volatile organic matter is deliquescent, is generated by biological metabolism
Agent.Biosurfactant is set to completely dissolve in water in dissolving tank 1, specific method is：Water is added in biosurfactant
In after, add alkaline matter and adjust pH value to neutrality, and stir.Due to biosurfactant classification by source be glycolipid,
Phosphatide, aliphatic acid, lipopeptid and lipoprotein are an analog anion surfactants.It is existing hydrophilic in biosurfactant molecule
It is mainly carboxyl, hydroxyl, ester group and other oxyacid groups that group, which also has hydrophobic grouping, hydrophilic radical, is in acidity in water.
So making the hydrophilic radical ionization equilibrium for the biosurfactant being dissolved in water move right after alkaline matter is added, add
Big degree of ionization, to increase the meltage of biosurfactant.
B, so that biosurfactant aqueous solution is formed misty state and is mixed with air by atomization plant, form carbonated drink
Mixture.
C, air injector well 9 and extraction well 10 are laid in contaminated soil place.
D, by heating device 8 heat air injector well around contaminated soil place, heating soil temperature to 50 DEG C-
100℃。
E, steam water interface is injected by air injector well, steam water interface is made to permeate and by contaminated soil region；It is right
Contaminated soil carries out elution in situ.
The biosurfactant of selection is a kind of environmentally-friendly surfactant, can be biodegradable, is dissolved into water
Water-soil environment tension can be reduced after middle entrance soil, reduces attachment of the pollutant on soil particle.Biosurfactant
The dissolubility for changing the existing forms and organic matter of heavy metal-polluted soil, makes heavy metal-polluted soil more be converted to dissolvable state, has
Machine object more switchs to water-soluble state.Hydrophilic radical such as hydroxyl, carboxyl, phosphate group in biosurfactant etc. contains aerobic original
Son, and complex and forms micella, and heavy metal is separated from soil.Biosurfactant helps to wave
Hair property organic pollution is dissolved in biosurfactant micella and is adsorbed on monomer from the desorption of soil particle
On, to increase the distribution of organic matter in water.In addition, biosurfactant can significantly change volatile organic contaminant
Gas-liquid partition equilibrium, hence it is evident that the Henry's constant for reducing these organic matters, make organic matter from soil desorption enter water in, more
Be conducive to organic pollution and removal is extracted by soil steam.
F, it is extracted by extraction well.The biosurfactant solution for carrying package heavy metal ion is extracted soil.
Organic matter etc. has the heated volatilization of volatile substance, and is extracted with steam water interface.
G, the steam water interface for carrying heavy metal and organic matter is delivered to steam-water separator 12, the exhaust gas after separation passes through
Emission-control equipment 14 is purified, and the waste water after separation is handled by wastewater treatment equipment 15.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and what is described in the above embodiment and the description is only the present invention
Principle, various changes and improvements may be made to the invention without departing from the spirit and scope of the present invention, these variation and
Improvement is both fallen in the range of claimed invention.The present invention claims protection domain by appended claims and its
Equivalent defines.
Claims (14)
1. contaminated soil steam extracts repair system, which is characterized in that including steam-water mixing system and gas phase extraction system；
The steam-water mixing system includes：
Store the container of biosurfactant aqueous solution；
The biosurfactant aqueous solution in the container to be atomized and forms the atomization plant of steam water interface；Atomization
Equipment and reservoir；
The gas phase extraction system includes：
In the air injector well that contaminated soil place is laid；Air injector well injects the steam-water mixing system system to contaminated soil
The steam water interface made；
To heat air injector well surrounding soil temperature heating device；
To the extraction well for extracting steam water interface out.
2. contaminated soil steam according to claim 1 extracts repair system, which is characterized in that the atomization plant includes
Sequentially connected pipette, sprayer, spray chamber；The high pressure nozzle of sprayer is connected to spray chamber.
3. contaminated soil steam according to claim 2 extracts repair system, which is characterized in that the spray chamber is provided with
Air intake and waste liquid outlet so that the misty aqueous solution that sprayer sprays is mixed with the air entered from air intake, in mist
Change indoor formation steam water interface, wherein being flowed out from waste liquid outlet after larger droplet condensation.
4. contaminated soil steam according to claim 2 extracts repair system, which is characterized in that the spray chamber is connected with
Air-introduced machine.
5. contaminated soil steam according to claim 3 extracts repair system, which is characterized in that the waste liquid outlet with it is useless
Liquid collecting tank connects, and waste collection tank passes through reflux and the reservoir.
6. contaminated soil steam according to claim 1 extracts repair system, which is characterized in that the gas phase extraction system
It further include the airtight cover film of contaminated soil place surface covering.
7. contaminated soil steam according to claim 1 extracts repair system, which is characterized in that the extraction well and carbonated drink
Separator connects, and steam-water separator is separately connected emission-control equipment and wastewater treatment equipment.
8. contaminated soil steam according to claim 1 extracts repair system, which is characterized in that the air injector well
Surrounding is evenly equipped with several extraction wells.
9. contaminated soil steam according to claim 1 extracts repair system, which is characterized in that the container is dissolving
Tank.
10. a kind of contaminated soil steam based on the repair system as described in claim any one of 1-9 extracts restorative procedure, special
Sign is, includes the following steps：
A, biosurfactant is chosen according to site investigation result, so that biosurfactant is dissolved completely in water in container
In；
B, so that biosurfactant aqueous solution is formed misty state and is mixed with air by atomization plant, form steam-water mixing
Object；
C, air injector well and extraction well are laid in contaminated soil place；
D, by the contaminated soil place around heating devices heat air injector well, the soil moisture is improved；
E, steam water interface is injected by air injector well, steam water interface is made to permeate and by contaminated soil region；
F, the steam water interface for carrying heavy metal and organic matter is extracted out by extraction well.
11. contaminated soil steam according to claim 10 extracts restorative procedure, which is characterized in that in the step A
Middle biosurfactant be refer to change target heavy metal existing forms and change volatile organic matter it is deliquescent, by
The biosurfactant that biological metabolism generates.
12. contaminated soil steam according to claim 10 extracts restorative procedure, which is characterized in that in the step A
The method that biosurfactant is dissolved completely in water is：Alkaline matter is added and adjusts pH value to neutrality, and stirs.
13. contaminated soil steam according to claim 10 extracts restorative procedure, which is characterized in that in step D, described
Heating soil temperature is to 50 DEG C -100 DEG C.
14. contaminated soil steam according to claim 10 extracts restorative procedure, which is characterized in that after above-mentioned steps F,
The steam water interface for carrying heavy metal and organic matter is delivered to steam-water separator, the exhaust gas after separation passes through emission-control equipment
It is purified, the waste water after separation is handled by wastewater treatment equipment.
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| CN201710091034.XA CN108453129A (en) | 2017-02-20 | 2017-02-20 | Contaminated soil steam extracts repair system and method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110252794A (en) * | 2019-07-25 | 2019-09-20 | 黎泽辉 | A kind of volatile contaminant soil remediation integration apparatus |
| CN111715684A (en) * | 2020-07-17 | 2020-09-29 | 西藏神州瑞霖环保科技股份有限公司 | Contaminated soil remediation system and contaminated soil remediation method |
| 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 |
| CN112588810A (en) * | 2020-12-25 | 2021-04-02 | 苏州精英环保有限公司 | In-situ heat-enhanced microbial remediation method |
| CN113414234A (en) * | 2021-06-21 | 2021-09-21 | 上海格林曼环境技术有限公司 | Method for remediating soil and underground water pollution by using in-situ low-consumption combined relay remediation device |
| CN114609361A (en) * | 2021-12-14 | 2022-06-10 | 中国科学院武汉岩土力学研究所 | Thermal evaporation displacement-vacuum consolidation combined test device and test method thereof |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1087686A (en) * | 1992-07-31 | 1994-06-08 | 亨凯尔公司 | The method of degreasing metal surface and aqueous composition |
| US5986159A (en) * | 1997-09-16 | 1999-11-16 | The Regents Of The University Of California | Chemical tailoring of steam to remediate underground mixed waste contaminents |
| CN2801296Y (en) * | 2005-04-30 | 2006-08-02 | 佛山市南海科日电子有限公司 | Ultra-sonic atomization device capable of automatic make-up water |
| CN201287102Y (en) * | 2008-10-15 | 2009-08-12 | 桂林电器科学研究所 | Ultrasonic atomization device |
| CN102228900A (en) * | 2011-05-18 | 2011-11-02 | 华北电力大学 | In situ integrated restoring system and method of petroleum polluted soil |
| CN102580993A (en) * | 2012-02-21 | 2012-07-18 | 天津生态城环保有限公司 | In-situ remediation technology for organic polluted soil |
| CN202591210U (en) * | 2011-12-22 | 2012-12-12 | 天津生态城环保有限公司 | Device for treating contaminated soil by using in-situ thermal reinforced combined soil vapor extraction technology |
| CN103230933A (en) * | 2013-04-11 | 2013-08-07 | 华北电力大学 | A device for remediation of organic contaminated soil by using thermal desorption combined with an oxidant and a remediation method |
| CN203343163U (en) * | 2013-07-04 | 2013-12-18 | 中环循(北京)环境技术中心 | Polluted soil in-situ combined desorption restoration system |
| CN103639182A (en) * | 2013-12-16 | 2014-03-19 | 华北电力大学 | Multiple combined repairing system and method for arsenious organism in soil |
| CN204182670U (en) * | 2014-10-09 | 2015-03-04 | 北京宜为凯姆环境技术有限公司 | A kind of atomized liquid injection device |
| CN105665433A (en) * | 2016-02-26 | 2016-06-15 | 上海宝发环科技术有限公司 | Soil contamination in-situ desorption method and device |
| CN206550126U (en) * | 2017-02-20 | 2017-10-13 | 上海伊尔庚环境工程有限公司 | Contaminated soil steam extracts repair system |
| US20170312798A1 (en) * | 2014-10-21 | 2017-11-02 | Soil Research Lab Sprl | Device, system and process for treating porous materials |
-
2017
- 2017-02-20 CN CN201710091034.XA patent/CN108453129A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1087686A (en) * | 1992-07-31 | 1994-06-08 | 亨凯尔公司 | The method of degreasing metal surface and aqueous composition |
| US5986159A (en) * | 1997-09-16 | 1999-11-16 | The Regents Of The University Of California | Chemical tailoring of steam to remediate underground mixed waste contaminents |
| CN2801296Y (en) * | 2005-04-30 | 2006-08-02 | 佛山市南海科日电子有限公司 | Ultra-sonic atomization device capable of automatic make-up water |
| CN201287102Y (en) * | 2008-10-15 | 2009-08-12 | 桂林电器科学研究所 | Ultrasonic atomization device |
| CN102228900A (en) * | 2011-05-18 | 2011-11-02 | 华北电力大学 | In situ integrated restoring system and method of petroleum polluted soil |
| CN202591210U (en) * | 2011-12-22 | 2012-12-12 | 天津生态城环保有限公司 | Device for treating contaminated soil by using in-situ thermal reinforced combined soil vapor extraction technology |
| CN102580993A (en) * | 2012-02-21 | 2012-07-18 | 天津生态城环保有限公司 | In-situ remediation technology for organic polluted soil |
| CN103230933A (en) * | 2013-04-11 | 2013-08-07 | 华北电力大学 | A device for remediation of organic contaminated soil by using thermal desorption combined with an oxidant and a remediation method |
| CN203343163U (en) * | 2013-07-04 | 2013-12-18 | 中环循(北京)环境技术中心 | Polluted soil in-situ combined desorption restoration system |
| CN103639182A (en) * | 2013-12-16 | 2014-03-19 | 华北电力大学 | Multiple combined repairing system and method for arsenious organism in soil |
| CN204182670U (en) * | 2014-10-09 | 2015-03-04 | 北京宜为凯姆环境技术有限公司 | A kind of atomized liquid injection device |
| US20170312798A1 (en) * | 2014-10-21 | 2017-11-02 | Soil Research Lab Sprl | Device, system and process for treating porous materials |
| CN105665433A (en) * | 2016-02-26 | 2016-06-15 | 上海宝发环科技术有限公司 | Soil contamination in-situ desorption method and device |
| CN206550126U (en) * | 2017-02-20 | 2017-10-13 | 上海伊尔庚环境工程有限公司 | Contaminated soil steam extracts repair system |
Non-Patent Citations (2)
| Title |
|---|
| 范拴喜: "土壤重金属污染与控制", 30 November 2011, 中国环境科学出版社, pages: 204 - 206 * |
| 黄茂福: "助剂使用原则与工艺分析", 印染, no. 15, 15 March 2005 (2005-03-15), pages 48 - 50 * |
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|---|---|---|---|---|
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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 |
| CN111715684A (en) * | 2020-07-17 | 2020-09-29 | 西藏神州瑞霖环保科技股份有限公司 | Contaminated soil remediation system and contaminated soil remediation method |
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