CN108687124A - Utilize soil contaminated by crude oil purifier in situ that is lower broken and forcing suction with pressure - Google Patents
Utilize soil contaminated by crude oil purifier in situ that is lower broken and forcing suction with pressure Download PDFInfo
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- CN108687124A CN108687124A CN201810229448.9A CN201810229448A CN108687124A CN 108687124 A CN108687124 A CN 108687124A CN 201810229448 A CN201810229448 A CN 201810229448A CN 108687124 A CN108687124 A CN 108687124A
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- soil
- well
- air
- injection
- injection well
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/02—Extraction using liquids, e.g. washing, leaching, flotation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—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
- B09C1/10—Reclamation of contaminated soil microbiologically, biologically or by using enzymes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C2101/00—In situ
Abstract
The present invention provides soil contaminated by crude oil purifier in situ, including:Injection well is embedded in the contaminated soil of oil pollution, and injects the air broken for underground and the medium for purified treatment;Air injector and pressure vessel and compressed air regulating valve, air injector is connected to injection well, and supplies the pressure-air being crushed for underground;Oxidizer injector and pump, microorganism injector and pump, are respectively used to oxidation processes, biological processes contaminated soil;Nutritional agents injector and pump supply nutrition to microorganism;Extraction well will extract volatile substance in contaminated soil processing procedure to outside;Vacuum pump generates vacuum to guide underground broken in extraction well;Gas-liquid separation slot and pump, gas and liquid in the volatile substance of extraction;Activated carbon adsorption slot handles the gas of volatilization;Automatic control device and situ metrology device.The present invention can efficiently and stably remove polluter, and shorten processing time and save the effect of processing cost.
Description
Technical field
The present invention relates to for purifying in situ by the purification method of the soil of the oil pollutions such as gasoline, diesel oil, more specifically
Ground relates to the use of lower broken with pressure and forces the soil contaminated by crude oil purifier in situ being sucked out, as in order to regardless of highly concentrated
Degree oil pollution soil be sand, mud soil or argillaceous soil it is applicable and develop technology, in Polluted Soil
The setting injection well in situ and extraction well of earth enforce air-breathing while using injection well injection pressure air from extraction well,
Underground is generated in contaminated soil to be crushed and swimmingly guide hole, and the water penetration of soil is ensured more than certain value, is led to
Cross the hole make as processing medium oxygen, microorganism, nutritional agents and oxidant contact stain soil with realize purification, with
The adjacent place setting extraction well of injection well when injection well is broken with compressed air implementation underground, while being forced in extraction well
Implement air-breathing so that the energy difference of injection well and extraction well becomes larger, to which guide energy moves, enabling it is broken to generate underground
The radius of influence broaden, underground is crushed radius width and can improve treatment effeciency and shorten processing time, therefore can carry out economy
And the oil pollution soil sanitation stablized.
Background technology
After 1980, the increase for the industrial plants usage amount brought with economic development and income increase and vehicle supply
The increase of amount, oily usage amount sharply increase, to which the set amount of oil depot and gas station dramatically increases.As it does so, due to from gas station
Oil storage tank outflow with the industrial plants for storing harmful chemical is classified as polluter (NAPLs:Non Aqueous
Phase Lquids) oils and harmful chemical, the pollution problem of soil horizon and underground water it is very serious.
Up to the present, it develops and is restored by the multiple technologies of the soil of oil pollution simultaneously in developed country and at home
It is applied at the scene, is roughly divided into processing (Ex-Situ) technology on the ground and subsurface processes (In-Situ) purification techniques in situ, ground
Upper treatment technology to excavate contaminated soil and being transferred to the technology that external treatment facility appropriate purified, in situ under
Treatment and purification technology is in the technology that pipe well is inserted into the underground of current location and directly handles.
Processing skill on the ground is evaluated readily in previous main treatment process management and treatment effeciency using for polluter
Art, but increase due to freight and the secondary pollutions such as contaminated soil loss can be caused in transportational process, recently
With the development of parcel assessment and monitoring technology, increasingly for that can utilize plot during processing, simultaneously processing cost is low for concern
Descend treatment technology in situ.
But soil is different from water and air, hydraulic conductivity is uneven (heterogeneous), therefore carries out in situ
Processing has difficulty in technique.In soil pollution purification techniques most important hydraulic conductivity by water-bearing layer gap size, knot
The decisions such as structure are possible to flow, in situ due to only handling medium when hydraulic conductivity is ensured to be certain value or more
In lower processing, it is important to ensure hydraulic conductivity more than certain value.Up to the present, it develops and applies that there are many for purifying basis
The soil horizon of oil pollution substance and underground water descend treatment technology in situ.
The soil vapor extraction method of typical oil pollution method of soil decontamination as previous subsurface processes in situ
(Soil Vapor Extraction:SVE), used due in terms of operation ease and economic effect because of it more.But it should
Method has as a drawback that:When applied to soil because of high concentration oil pollution, as time goes by, the low oil of volatility
Constituents ratio can increase, and therefore, it is difficult to be processed into low concentration, and be dfficult to apply to the saturations such as mud soil and argillaceous soil
Layer.
In addition, recently, air injects and extracts (Air Sparging/Soil Vapor extraction) system often quilt
For by the soil horizon of oil pollution and underground water purification method, this method to be to inject air in zone of saturation and increase oils
Method of the volatilization of polluter to extract volatilization gas in unsaturated layer is can to make to utilize SVE (gaseous phase of soil pumpings
Carry) treatment effeciency maximize, can handle for the high substance of volatility, can also be carried out for the pollution sources of zone of saturation as early as possible
The purification techniques of processing, but be not suitable for for as fixedness diesel oil oil pollution soil and volatile substance flowing not
Smoothly contaminated soil is handled.Therefore, in order to be decomposed to diesel bio, the activity degree for being able to maintain that microorganism should be provided
Condition (PH, temperature, nutriment, oxygen etc.), and using making the flowing of volatile substance smoothly combination process.
For oil pollution soil material, a variety of methods such as physics, chemistry and bioremediation are respectively provided with, it is a variety of
Technology is respectively provided with advantage and disadvantage, therefore for purifying contaminated soil, is used according to the condition of on-site soil and the characteristic of pollution sources
Suitable complex technique can obtain result that is economic and stablizing.
During this, descend treatment technology in the more contaminated soil of shale and clayey because cannot ensure hydraulic conductivity in situ,
After injecting a large amount of oxidant by injection well, there is no other methods in addition to falling into a long wait, therefore not with processing
Stablize and efficiency is low, the problem more than disbursement.Therefore, need at present in a kind of subsurface processes in situ, in mud soil and
It can will determine that the hydraulic conductivity of the success or failure of oil pollution soil sanitation is ensured to be the technology and object of certain value or more in argillaceous soil
The technology of reason, chemistry, biological treatment Application of composite.
In addition, No. 0925292 (date of declaration of Pat. Registration disclosed in Republic of Korea's registered patent bulletin:
2009.11.05 the purifier and its purification method of soil contaminant) are to be related to implementing high concentration oil according to thermal desorption method
After class contaminated areas is restored, the air of high temperature and medium temperature is injected in remaining low concentration oil pollution water-bearing layer, to improve
The purifier and its purification method of the oil pollution substance of bioactivity degree in water-bearing layer, purifier therein include:
Injection well, the injection well are embedded in the soil horizon by oil pollution and inject air to soil horizon;Air injector, the air
Injector is connected to the entrance of injection well and supplies air to injection well;Air heater, the air heater are set to injection
Between well and air injector, and the air supplied from air injector to injection well is heated;Extraction well, the extraction well
It is embedded in soil horizon, and the oil pollutant to volatilize by the air of heating is discharged to outside;Air vent, air row
Go out device and is connected to the outlet of extraction well so that oil pollutant is discharged;Soil diagnosis determination part, the soil diagnosis determination part is for real
When diagnosis by the soil horizon and water table of oil pollution;Real-time control evaluation section, the real-time control evaluation section is by from soil
The real time data that diagnostic assay portion measures controls air injection way, air injection length, air implantation temperature.Increase as a result,
Into by activating by the active oils biological decomposition function of the indigenous microorganism of the soil horizon of oil pollution, to make such as diesel oil
Equal low volatilities oils etc. also can be removed easily in a short time.
But the purifier and its purification method of previous soil contaminant as described above have the disadvantage that:
In argillaceous soil, even if injecting pressure-air using injection well, it is difficult to uniformly penetrating due to not having hole, simultaneously because glutinous
Matter soil is hardy got together with bulk, even if forcing injection forced air, air can be biased to most weak side, to be difficult to
Uniform purification contaminated soil.That is, the number of the indigenous microorganism in general contaminated soil is few (3000 or less).Therefore, work as dirt
When contaminating the number of indigenous microorganism in soil less, need from external add-in to supplement microorganism (1000000 or less), but due to
There is no individual device and only inject air, so not being suitable for uniform purification contaminated soil.
In addition, No. 1429471 (date of declaration of Pat. Registration disclosed in Republic of Korea's registered patent bulletin:
2014.08.13 method of soil decontamination and device) is to utilize the soil sanitation device constituted including having the bar of multiple nozzles
With the method that purification soil pollutes in a manner of straight perforation comprising:First step prepares soil sanitation device in perforation place;
Second step, swingle and while into eleven punch 11, pass through nozzle and spray air and the first liquid;Third step perforates bar
After to desired depth, second liquid is sprayed by nozzle, is described and is characterized as that the first liquid and second liquid are water
Or purification liquid.
But there are the following problems for previous method of soil decontamination and device as described above:Using equipment in Polluted Soil
After burying injection well in earth, it can be handled, but not had using oxidant in the form of injecting processing medium with high pressure
For the facility of biological treatment, without extraction well, therefore, it is difficult to know the injection area of injection oxidant.
Therefore, a kind of following technology is needed at present:According to soil property (clayey, sandy, shale etc.) note is determined at mutually
After the spacing distance for entering well and extraction well, injection in batches (is repeatedly injected 10 minutes, stops 1 minute) pressure-air to generate ground
It is lower broken, while generating hole, force to carry out vacuum suck from extraction well to guide the flow path of air, and need combinable
It can be generated after air is broken in contaminated soil and put into the device of microorganism after hole, while injection well and extracting are set
Well so that injection well can carry out the oxidizer treatment, the biological treatment that are suitble to processing mode, while can be extracted from extraction well from dirt
The polluter of soil separation is contaminated to carry out after-treatment.
Invention content
Therefore, the present invention proposes that its purpose is to provide one kind in order to solve conventional problems as described above
Purifier solves the problems, such as that the hydraulic conductivity as most crucial element in subsurface processes in situ is ensured to be certain value or more,
And it is compound using physics, chemistry and biologic treating technique for each polluting property.
It is further an object that providing following utilization oily pollution in situ that is lower broken and forcing suction with pressure
Soil sanitation device, in order to it is relatively inexpensive and steadily handle oil pollution soil, in soil horizon be arranged situ metrology device with
And portion is automatically controlled, to the data (flow, pressure, temperature and pH etc.) that analysis is obtained from measuring appliance, start control program
To automatically control the flow, pressure and temperature and the flow, pressure, pH, the oxygen that suck air of injection air and injected media
Concentration, gas concentration lwevel, VOCs concentration and TPH concentration, it is most suitable to be prompted according to the reactiveness in contaminated soil
Service condition, and then electricity usage and administrative staff can be made to minimize.
To solve problem as described above, the purifier of oil pollution soil according to the present invention includes:Injection well,
It is embedded in the soil horizon by oil pollution and injects air to soil horizon;Blowoff, to injecting into well injecting compressed air
With processing medium;Compressed air injection device, connect with blowoff and supplies compressed air;Extraction well is set as and supplies
Medium supply apparatus and the injection well for handling medium are adjacent, and can swimmingly guide underground broken and force sucking volatile matter
Matter;It is connected to extraction well and force the vacuum suck device of sucking and handle the device etc. of volatile substance.In addition, locating
Simultaneously analyzing processing state can be obtained during reason, and pressure is set in the compressed air injection pipe to provide most suitable service condition
It is dense that pressure gauge, flowmeter, pH meter, oxygen densitometer, carbon dioxide concentration, VOCs is arranged in meter, flowmeter etc. in extraction tube
Degree meter and TPH densimeters etc., and collect data, these data of collection are in automatic arithmetic unit by most suitable operation program control
Make each device.
More specifically, by being realized using soil contaminated by crude oil purifier in situ that is lower broken and forcing suction with pressure,
It is described original position soil contaminated by crude oil purifier include:Injection well, the injection well are embedded in by the dirt of the oil pollutions such as gasoline, diesel oil
It contaminates in soil, and injects the air broken for underground and the medium for purified treatment;Air injector and pressure vessel with
And compressed air regulating valve, it is connected to the injection well and supplies the pressure-air being crushed for underground;Oxidizer injector and
Oxidant injection pump is connected to the injection well and for contaminated soil described in oxidation processes;Microorganism injector and microorganism
Injection pump is connected to the injection well (10) and for contaminated soil described in biological treatment;Nutritional agents injector and nutritional agents note
Enter pump, for supplying nutrition to microorganism;Extraction well, the extraction well are spaced a predetermined distance and bury with the injection well, guide
The underground of the contaminated soil is broken, and extracts volatile substance to outside in contaminated soil processing procedure;Vacuum pump, and it is described
Extraction well connects, and generates vacuum in the extraction well to guide underground broken;Gas-liquid separation slot and pump, the gas-liquid separation
Gas in the volatile substance of slot extraction and liquid;Activated carbon adsorption slot handles the gas of volatilization;Automatic control device,
It automatically controls to measure the pollution level of oil pollution soil horizon, and carries out control thus at optimal service condition
Reason;Situ metrology device is connected to the automatic control device, and measures injected media and extract the real-time status of substance.
Here, the injection well, the extraction well and the automatic control device are preferably in the contaminated soil
It is provided at predetermined intervals according to polluter, pollution depth and pollution concentration multiple.
In addition, the injection well includes:Well casing is injected, the injection well is tubular to be become underpart opening and have a fixed length
Degree, upper end has the injection well pipe flange for being formed with bolt hole;Internal supply pipe, inside supply pipe lower end closing, under
It is provided with multiple nozzles on the outer wall in portion region, upper area is provided with first flange with bolt hole and with bolt hole
Second flange, the internal supply pipe is bolted in the second flange to be arranged in the state of on the injection well pipe flange
In the injection well casing.The extraction well includes:Well casing is extracted, the extraction well is tubular to be become underpart opening and have one
Measured length, upper end have the extraction well pipe flange for being formed with bolt hole;Screen casing is extracted, the extracting screen casing lower end is closed,
It is provided with multiple micropores on the outer wall of lower area, upper area is provided with third flange with bolt hole and with bolt hole
The 4th flange, the extracting screen casing is set in the state that the 4th flange bolt is connected to the extraction well pipe flange
In the extracting well casing.
According to the present invention as above, the previous infiltration coefficient for descending sandy soil etc. in processing method in situ is big, to only
Can restrictively be applied in the high contaminated soil of hydraulic conductivity, but the present invention in the small contaminated soil of infiltration coefficient also by
After generation underground is crushed to improve hydraulic conductivity, the purified treatment of physics, chemistry, biology or combination process can be carried out, therefore
Have the advantages that efficiently and stably remove polluter.
In addition, operating status can be obtained in real time by using measuring appliance and control program, it can be according to contaminated soil
Characteristic optimally injects injection air and handles the amount of medium, thus with that can shorten processing time and save processing cost
Effect.
Description of the drawings
Fig. 1 is the basic system diagram for descending processing method in situ as the present invention;
Fig. 2 is the detailed figure of injection well;
Fig. 3 is the detailed figure of extraction well;
Fig. 4 is the structure chart according to the control system of the method for operation.
Reference sign
10 injection well 10a inject well casing
11 inside supply pipe 11a bolts hole
12 nozzle, 13 bolt hole
14 injection well pipe flange, 15 first flange
16 second flange 16a bolts hole
20 extraction well 20a extract well casing
21a bolts hole 22 extract screen casing
23 bolt hole, 24 extraction well pipe flange
25 micropore, 26 third flange
27 the 4th flange, 30 air injector
31 pressure vessel, 40 oxidizer injector
41 oxidant injection pump, 42 oxidant drug slot
50 microorganism injector, 51 microbe injection pumps
52 microorganism accumulator tank, 60 nutritional agents injector
61 nutritional agents injection pump, 62 nutritional agents accumulator tank
70 vacuum pump, 71 gas-liquid separation slot
72 80 activated carbon adsorption slots of pump
90 automatic control device, 91 situ metrology device
93 wide area networks of 92PC
Specific implementation mode
Hereinafter, explaining the particular content of the present invention in detail with reference to the accompanying drawings.
The present invention is not limited to contents shown in attached drawing, but can constitute otherwise, and present embodiment is
The disclosure is set to embody.
Fig. 1 is the overall structure figure of subsurface processes in situ according to the present invention.
The present invention is configured to:Injection well 10, the injection well 10 are set as being embedded in contaminated soil, can will handle
Medium swimmingly injects and processing medium is made to be contacted with contaminated soil;Extraction well 20, the extraction well 20 are configured to pollute
Substance is discharged from Polluted Soil to outside;Air injector 30, the air injector 30 can cope with the more of the soil properties such as shale and clayey
Kind ingredient, the oxygen supply source for playing the role of the energy supply broken for air and being grown for microorganism;Oxidant is noted
Enter device 40;Microorganism injector 50;Nutritional agents injector 60;Vacuum pump 70, the vacuum pump 70 connect and guide with extraction well 20
Air is broken can be smoothly discharged polluter;Activated carbon adsorption slot 80;And automatic control device 90 etc., according to Fig. 1
Shown in pipe path, the medium for handling polluter supplies to injection well 10, by extraction well 20 from contaminated soil 1 to
External extraction stain substance.
Injection well 10 according to the present invention includes:Inject well casing 10a, injection well casing 10a be formed as underpart opening and
With certain length, upper end has the injection well pipe flange 14 for being formed with bolt hole 13;Internal supply pipe 11, lower end envelope
It closes, multiple nozzles 12 is provided on the outer wall of lower area, upper area is provided with 15 He of first flange with bolt hole 11a
Second flange 16 with bolt hole 16a, internal supply pipe 11 are bolted in second flange 16 in injection well pipe flange 14
It is set under state in injection well pipe 10a.
Injection well 10 is embedded in contaminated soil, for being crushed and being supplied for handling by compressed air generation air
The device of the medium of polluter, as described above, injection well 10 includes injection well casing 10a, external connection and internal supply pipe 11
And the nozzle 12 of supply compressed air and contaminated soil processing medium.
Injection well casing 10a plays the role of protection pipe, be easy setting when internal supply pipe 11 is arranged and not occur
Damage.The material and size of internal supply pipe 11 are preferably determined according to the ingredient of Polluted Soil and pollution depth so as to corrode and fill
Tap is touched and is possibly realized.
Principle in the present invention is that carbon steel is used in neutral and basic soil, and stainless steel is used in acid soil.Root
According to the depth of contaminated area, the size of internal supply pipe 11 is 25mm to 100mm, length, and length is 3m to 9m, but is not limited to
This.Injection well casing 10a is sized to the second level (50mm to 150mm), and length is than 11 short 60cm of internal supply pipe, upper
Second flange 16 is bolted on injection well pipe flange 14 by portion, to prevent air to outside in injecting compressed air
Discharge.
The setting number and shape of nozzle 12 according to the present invention are:Along peripheral direction with equally spaced setting 8 to 16
The vortex of 1/8 size can be generated, and keep setting and dismounting light, material is manufactured using stainless steel, can bear to grind
Damage and corrosion.
The internal structure of extraction well 20 can be observed in Fig. 3 in detail.Extraction well 20 includes:Well casing 20a is extracted, under being formed as
It is open-ended and have certain length, upper end has the extraction well pipe flange 24 for being formed with bolt hole 23;Screen casing 22 is extracted, under
End-enclosed is provided with multiple micropores 25 on the outer wall of lower area, and upper area is provided with the third method with bolt hole 21a
Orchid 26 and the 4th flange 27 with bolt hole 27a, extracting screen casing 22 are bolted in the 4th flange 27 in extraction well pipe flange
It is set in the state of 24 in extracting well casing 20a.
Extraction well 20 is embedded near injection well 10, as from contaminated soil 1 to external extraction stain substance
Device, as described above, including extracting well casing 20a, third flange 26 and pollution sources for being connect with vacuum generating device
Extract screen casing 22.
The setting interval of extraction well 20 is crushed and injects the radius of influence of air in view of the air in injection well 10,
According to pollution soil property and pollution depth, it is configured at equal intervals with 1.5m to 3m.Extracting screen casing 22 be embedded in Polluted Soil, to
When external extraction stain source so that the particle of Polluted Soil is not discharged together, and it is existing can avoid blocking to be manufactured into sieve-like
As the interval of sieve is distinguished according to Polluted Soil at mutually, is manufactured to 0.1mm to 0.5mm.When being stripped, it is set to extracting
The material and size of extracting screen casing 22 inside well casing 20a are applicable in identically as internal supply pipe 11.Principle in the present invention is,
Carbon steel is used in neutral and basic soil, and stainless steel is used in acid soil.According to contaminated area and depth, screen casing is extracted
22 size is 25mm to 100mm, and length is 3m to 9m, but not limited to this.
The maximum pressure of air injector 30 according to the present invention is 10kg/cm2, capacity is the width according to contaminated soil
Degree, is subject to the quantity of injection well 10, is 0.3CMM or more in an injection well 10.
The rear end of air injector 30 is provided with air receiver (Air Receiver), so that compressed air stable and consistent
Ground is supplied to, and the capacity of air receiver is 10m3.Compressed air injection device includes from air injector 30 to injection well 10
Between connecting tube, compressed air regulating valve 32 is arranged in intermediate in connecting tube, and in order to which the effect for keeping air broken maximizes,
Be formed as impact type injection.Using injection 10 minutes, stop repeating reflooded mode later in 1 minute.
The oxidant drug slot 42 of oxidizer injector 40 according to the present invention uses PE materials in view of corrosion, holds
Amount selects the storage volume of minimum one week injection deal.Oxidant injection pump is using quantitative injection pump, material and injection capacity root
It is estimated according to the ingredient of Polluted Soil, concentration and area.
The microorganism accumulator tank 52 of microorganism injector 50 according to the present invention is for being injected not to the supplement of contaminated soil 1
The microorganism of foot, or storage is according to the container of the most suitable microorganism of pollutant component.In addition, microbe injection pumps 51 are quantitative
Pump, should be able to adjust the quantity of the microorganism of Polluted Soil 106More than a.
The nutritional agents accumulator tank 62 of nutritional agents injector 60 according to the present invention is for injecting needed for microorganism growth
The container of nutritional ingredient is determined according to the pollutant component of contaminated soil 1 and concentration.In addition, nutritional agents injection pump 61 uses
Constant displacement pump, material and capacity are determined according to pollution concentration.
Vacuum pump 70 according to the present invention is connected to extraction well 20, and setting purpose is:Extraction well 20 is set to keep vacuum,
While so that guiding underground disruption channel from the compressed air that injection well 10 is injected, rapid discharge is by VOCs and microorganism decomposition
CO2Gas and moisture.
For the form and capacity of the vacuum pump 70 in the present invention, vacuum degree more high effect is better, makes minimum vacuum degree
For 750mmHg or more, 110% or more more than the air supply injected to injection well 10, and using being applicable to corrosion and tide
Wet form.
Gas-liquid separator 71 according to the present invention detaches liquids and gases from the fluid that vacuum pump 70 is discharged.Due to from true
The fluid of 70 discharge of sky pump includes a large amount of moisture and pollutant component, in order to carry out after-treatment, needs to detach gas and liquid.
In addition, conflict formula gas-liquid separator or adsorption type gas-liquid separator etc. may be used in gas-liquid separator 71, to it, there is no limit.
Waste water treatment plant is transferred to from the liquid of gas-liquid separator separates by pump 72 to be handled.
Activated carbon adsorption slot 80 according to the present invention is for from the VOCs etc. in the gas that gas-liquid separator 71 detaches
Polluter carries out adsorption treatment, and the equipment that cleaned air is released to air.
Automatic control device 90 according to the present invention be for underground air be crushed compressed air injector 30, be embedded in
In contaminated soil 1 and injecting compressed air and processing medium injection well 10 and extraction well 20 and processing medium injection device
40, the system of multiple device orderly functions such as 50,60.The treatment effeciency being optimal to make the system stable operation,
Each place setting such as thermometer, flowmeter, pressure gauge, pH meter, CO2Meter, O2The situ metrologies devices such as meter, VOCs meters and TPH meters
91, and it is connected to arithmetic unit, the input and output of measured variable are executed according to the program pre-entered.The operation fills
It sets and is attached with PC 92, and be able to confirm that operating status and change program.In addition, operation is carried out situation and result company
It is connected to wide area network 93, so that related personnel can easily share data.
As described above, the term or word that use in the specification and claims cannot be construed on usual dictionary
The meaning, should based on inventor in order to illustrate in optimal method the invention of oneself can suitably define term concept original
Then, it is construed to meet the meaning and concept of the technological thought of the present invention.
Therefore, embodiment party's examination described in this specification and structure shown in the accompanying drawings are only the preferred implementation side of the present invention
Examination cannot represent whole technological thoughts of the present invention, it should be understood that presence can replace preferred implementation side on the application time point
The a variety of equipollents and variation of examination.
Claims (3)
1. utilizing soil contaminated by crude oil purifier in situ that is lower broken and forcing suction with pressure, which is characterized in that the original position
Soil contaminated by crude oil purifier includes:
Injection well (10), the injection well (10) are embedded in the contaminated soil (1) by oil pollution, and are injected broken for underground
Air and medium for purified treatment;
Air injector (30) and pressure vessel (31) and compressed air regulating valve (32), are connected to the injection well (10) simultaneously
The pressure-air that supply is crushed for underground;
Oxidizer injector (40) and oxidant injection pump (41) are connected to the injection well (10) and for described in oxidation processes
Contaminated soil (1);
Microorganism injector (50) and microbe injection pumps (51) are connected to the injection well (10) and for described in biological treatment
Contaminated soil (1);
Nutritional agents injector (60) and nutritional agents injection pump (61), for supplying nutrition to microorganism;
Extraction well (20), the extraction well (20) are spaced a predetermined distance and bury with the injection well (10), guide the Polluted Soil
The underground of earth (1) is broken, and extracts volatile substance to outside in contaminated soil processing procedure;
Vacuum pump (70) is connect with the extraction well (20), and generates vacuum in the extraction well (20) to guide underground broken
It is broken;
Gas-liquid separation slot (71) and pump (72), gas and liquid in the volatile substance of gas-liquid separation slot (71) extraction
Body;
Activated carbon adsorption slot (80), handles the gas of volatilization;
Automatic control device (90), automatically control for measure oil pollution soil (1) layer pollution level and carry out control to
It is handled with optimal service condition;
Situ metrology device (91) is connected to the automatic control device (90), and measures injected media and extract the real-time of substance
State.
2. according to claim 1 be crushed and force the soil contaminated by crude oil purifier in situ being sucked out using lower with pressure,
It is characterized in that, the injection well (10), the extraction well (20) and the automatic control device (90) are in the Polluted Soil
It is provided at predetermined intervals according to polluter, pollution depth and pollution concentration in earth (1) multiple.
3. according to claim 1 be crushed and force the soil contaminated by crude oil purifier in situ being sucked out using lower with pressure,
It is characterized in that,
The injection well (10) includes:
Well casing (10a) is injected, the injection well casing (10a) is formed as underpart opening and has certain length, and upper end has
It is formed with the injection well pipe flange (14) of bolt hole (13);
Internal supply pipe (11), inside supply pipe (11) lower end are closed, and multiple nozzles are provided on the outer wall of lower area
(12), upper area is provided with the first flange (15) with bolt hole (11a) and the second flange with bolt hole (16a)
(16), the internal supply pipe (11) is bolted in the second flange (16) in the shape on the injection well pipe flange (14)
It is set under state in the injection well casing (10a),
The extraction well (20) includes:
Well casing (20a) is extracted, the extracting well casing (20a) is formed as underpart opening and has certain length, and upper end has
It is formed with the extraction well pipe flange (24) of bolt hole (23);
Screen casing (22) is extracted, extracting screen casing (22) lower end is closed, and multiple micropores are provided on the outer wall of lower area
(25), upper area is provided with the third flange (26) with bolt hole (21a) and the 4th flange with bolt hole (27a)
(27), the extracting screen casing (22) is in the state that the 4th flange (27) is bolted in extraction well pipe flange (24)
It is set in the extracting well casing (20a).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020170043676A KR101927947B1 (en) | 2017-04-04 | 2017-04-04 | In Situ Treatment Apparatus applying Pneumatic Fracturing and Forced Extraction for oil contaminated Soil |
| KR10-2017-0043676 | 2017-04-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108687124A true CN108687124A (en) | 2018-10-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810229448.9A Pending CN108687124A (en) | 2017-04-04 | 2018-03-20 | Utilize soil contaminated by crude oil purifier in situ that is lower broken and forcing suction with pressure |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR101927947B1 (en) |
| CN (1) | CN108687124A (en) |
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| CN109675918A (en) * | 2018-11-01 | 2019-04-26 | 核工业北京化工冶金研究院 | A kind of green eluent original position removal heavy metals in farmland pollution method |
| CN109926446A (en) * | 2019-04-04 | 2019-06-25 | 中国环境科学研究院 | Drug-injecting system in situ and method |
| JP2020082025A (en) * | 2018-11-29 | 2020-06-04 | 株式会社竹中工務店 | Soil remediation method |
| CN112058887A (en) * | 2020-09-15 | 2020-12-11 | 森特士兴集团股份有限公司 | Pneumatic fracturing strengthening multiphase extraction system for pollution site treatment |
| CN112845561A (en) * | 2019-11-27 | 2021-05-28 | 中国石油天然气集团有限公司 | Thermal ventilation reinforced petroleum hydrocarbon contaminated soil in-situ remediation method |
| CN113102490A (en) * | 2020-01-13 | 2021-07-13 | 大连杰邦环境科技有限公司 | Integrated system and method for monitoring and repairing soil and underground water pollution |
| CN114192558A (en) * | 2021-12-10 | 2022-03-18 | 江苏暨之阳环保科技有限公司 | Petroleum soil pollution remediation process for promoting crude oil degradation |
| CN114965956A (en) * | 2022-05-23 | 2022-08-30 | 同济大学 | Multifunctional casing for fracturing, permeability-increasing and cooperative repairing test of low-permeability polluted soil |
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| KR102251659B1 (en) * | 2020-10-26 | 2021-05-13 | 주식회사 예일 | Leachate recovery and purification treatment system of contaminated soil |
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| CN113102490A (en) * | 2020-01-13 | 2021-07-13 | 大连杰邦环境科技有限公司 | Integrated system and method for monitoring and repairing soil and underground water pollution |
| CN112058887A (en) * | 2020-09-15 | 2020-12-11 | 森特士兴集团股份有限公司 | Pneumatic fracturing strengthening multiphase extraction system for pollution site treatment |
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| CN115475827A (en) * | 2021-08-02 | 2022-12-16 | (株）山河工程建筑 | Method for purifying underground polluted soil by using plasma blasting and air pressure splitting |
| CN115475827B (en) * | 2021-08-02 | 2023-06-30 | (株）山河工程建筑 | Method for purifying underground polluted soil by utilizing plasma blasting and pneumatic fracturing |
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| CN114965956B (en) * | 2022-05-23 | 2023-04-11 | 同济大学 | Multifunctional casing for fracturing, permeability-increasing and cooperative repairing test of low-permeability polluted soil |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101927947B1 (en) | 2019-02-26 |
| KR20180112508A (en) | 2018-10-12 |
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Application publication date: 20181023 |