CN218252142U - Soil remediation system - Google Patents
Soil remediation system Download PDFInfo
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- CN218252142U CN218252142U CN202222393189.8U CN202222393189U CN218252142U CN 218252142 U CN218252142 U CN 218252142U CN 202222393189 U CN202222393189 U CN 202222393189U CN 218252142 U CN218252142 U CN 218252142U
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Abstract
The application discloses soil remediation system relates to the pollution remediation field. A soil remediation system comprising: the system comprises an extraction well, an aeration well, a gas-liquid separation device, a gas treatment device, an oil-water separation device, a water treatment device, a water storage container and an oil storage container; one end of the extraction well is used for being inserted into soil to be restored, the other end of the extraction well is connected with an inlet of the gas-liquid separation device, a gas outlet of the gas-liquid separation device is connected with the gas treatment device, and a liquid outlet of the gas-liquid separation device is connected with the oil-water separation device; one end of the aeration well is inserted into the soil to be repaired, and the other end of the aeration well is connected with the air outlet of the air treatment device; the water outlet of the oil-water separation device is connected with the water treatment device, the water outlet of the water treatment device is connected with the water storage container, and the oil outlet of the oil-water separation device is connected with the oil storage container. The method can solve the problems that the current soil treatment and restoration method is easy to cause secondary pollution and the like.
Description
Technical Field
The application belongs to the technical field of pollution remediation, and particularly relates to a soil remediation system.
Background
The petroleum industry has developed the following oil fast and has got into soil and cause soil pollution, and the oil pollutant is detained in soil for a long time, and can migrate and transform in soil to through morals and manners and oxidation, the light component volatilizes totally, and heavy component closely combines with silt, and the processing degree of difficulty is great.
Currently, products generated in the soil remediation process by some soil remediation and restoration methods easily cause secondary pollution.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application aims to provide a soil remediation system, which can solve the problems that the current soil remediation and remediation method is easy to cause secondary pollution and the like.
In order to solve the technical problem, the present application is implemented as follows:
the embodiment of the application provides a soil remediation system, includes: the system comprises an extraction well, an aeration well, a gas-liquid separation device, a gas treatment device, an oil-water separation device, a water treatment device, a water storage container and an oil storage container;
one end of the extraction well is used for being inserted into soil to be restored, the other end of the extraction well is connected with an inlet of the gas-liquid separation device, a gas outlet of the gas-liquid separation device is connected with the gas treatment device, and a liquid outlet of the gas-liquid separation device is connected with the oil-water separation device;
one end of the aeration well is inserted into the soil to be repaired, and the other end of the aeration well is connected with the air outlet of the gas processing device;
the water outlet of the oil-water separation device is connected with the water treatment device, the water outlet of the water treatment device is connected with the water storage container, and the oil outlet of the oil-water separation device is connected with the oil storage container.
In the embodiment of the application, the extraction well is used for extracting multiple phases (including polluted gas, polluted underground water and the like) in the soil to be repaired, the multiple phases are input into the gas-liquid separation device to separate gas and liquid, the gas is introduced into the gas treatment device to be treated and injected into the soil to be repaired through the aeration well after being qualified, so that the pollution gas is prevented from being discharged outside to pollute the environment, oxygen can be provided for the subsequent microbial remediation of the soil, the volatilization of pollutants in the soil to be repaired can be promoted, and the extraction of the pollution gas is facilitated; the liquid is introduced into an oil-water separation device for oil-water separation, the separated water enters a water treatment device for treatment, and after the water is qualified, the qualified water without salt and pollutants is introduced into a water storage container for storage so as to be reused subsequently, so that the environment pollution caused by the discharge of the polluted water can be prevented, the treated water can be recycled so as to be reused, and the effect of saving water resources is achieved; the separated petroleum is introduced into an oil storage container for collection so as to prevent the petroleum from being discharged outside to influence the environment and also recover petroleum resources. Based on the setting, the soil remediation system in the embodiment of the application can treat the polluted soil and can effectively prevent the discharge of treatment products, so that secondary pollution can not be caused, and resources can be reused to achieve the purpose of saving resources.
Drawings
FIG. 1 is a schematic structural view of a soil remediation system as disclosed in an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a gas-liquid separation apparatus disclosed in an embodiment of the present application;
fig. 3 is a flow chart of soil remediation as disclosed in an embodiment of the present application.
Description of the reference numerals:
10-an extraction well; 20-an aeration well; 30-a gas-liquid separation device; 31-a first-stage gas-liquid separation tank; 32-a secondary gas-liquid separation tank; 33-a first branch; 34-a second branch; 35-a first on-off valve; 36-a second on-off valve; 37-a heat exchanger; 40-a gas treatment device; 50-an oil-water separation device; 60-a water treatment device; 70-a water storage container; 80-oil storage container; 91-a first conduit; 92-a second conduit; 93-a third line; 94-fourth line; 100-a fan; 110-a microorganism container; 120-injection well; 131-a first pump body; 132-a second pump body; 133-third pump body; 134-a fourth pump body; 135-fifth pump body; 140-a nutrient solution container; 150-a valve body; 160-pressure gauge; 170-a flow meter; 180-soil to be restored.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/", and generally means that the former and latter related objects are in an "or" relationship.
The embodiments of the present application are described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.
Referring to fig. 1 to 3, the embodiment of the application discloses a soil remediation system for remediating and remediating well site petroleum hydrocarbon contaminated soil so as to reduce the pollution degree of the soil and achieve the purpose of remediating and remediating the soil. The disclosed soil remediation system includes an extraction well 10, an aeration well 20, a gas-liquid separation device 30, a gas treatment device 40, an oil-water separation device 50, a water treatment device 60, a water storage container 70, and an oil storage container 80.
For example, the soil 180 to be repaired may be hardened by cement to prevent the pollution gas pumped in the pumping operation from being volatilized to the atmosphere to cause atmospheric pollution, and meanwhile, when the soil 180 to be repaired is in a negative pressure environment, the problem of local disconnection may be avoided. Alternatively, the cement may be hardened to a thickness of 5cm. In addition, the pressure of the negative pressure environment can be controlled between-15 KPa and-5 KPa.
In some embodiments, the diameter of the extraction well 10 may be DN400, and the diameter of the aeration well 20 may be DN25.
One end of the extraction well 10 is inserted into the soil 180 to be repaired, so as to extract multiple phases (including polluted gas, polluted underground water and the like) in the soil 180 to be repaired, thereby reducing the content of petroleum hydrocarbon in the soil 180 to be repaired.
Considering that petroleum hydrocarbon is polluting, it is necessary to treat a plurality of phases containing the petroleum hydrocarbon, and thus the other end of the extraction well 10 is connected to an inlet of the gas-liquid separation device 30 so that the extracted plurality of phases are introduced into the gas-liquid separation device 30 to be subjected to a gas-liquid separation treatment to form a polluting gas and a polluting liquid.
For further processing, the gas outlet of the gas-liquid separation device 30 is connected with the gas processing device 40, and the liquid outlet of the gas-liquid separation device 30 is connected with the oil-water separation device 50. Based on this, the gas processing device 40 can process the polluting gas generated by gas-liquid separation to generate qualified gas; at the same time, the oil-water separator 50 performs oil-water separation processing on the polluting liquid resulting from the gas-liquid separation to produce water and oil.
In order to make full use of qualified gas, the gas outlet of the gas treatment device 40 is connected with the other end of the aeration well 20, and one end of the aeration well 20 is inserted into the soil 180 to be remediated, so that the qualified gas can be injected into the soil 180 to be remediated through the aeration well 20, and therefore the pollution gas can be prevented from being directly discharged outside to pollute the environment, oxygen can be provided for aerobic microorganisms in the soil 180 to be remediated to meet the survival conditions of the aerobic microorganisms, besides, the gas pressure in the soil 180 to be remediated can be increased, the volatilization of the pollution gas can be facilitated, and the extraction of the pollution gas is facilitated. Illustratively, the aeration wells 20 may be provided with mesh holes, and the positions of the mesh holes may be determined according to the depths of the locations of the contaminants.
It should be noted that, when qualified gas is injected into the soil 180 to be restored through the aeration well 20, the injected gas will migrate in the horizontal and vertical directions in the pores of the aquifer soil, so as to form an underground stripping system, so that the pollutants attached in the soil are stripped, and the gas-phase pollutants are extracted through the extraction well 10. Based on this, the content of the pollutants in the soil 180 to be remediated can be reduced by the above-mentioned air stripping technique, so that the soil can be remediated and remediated conveniently.
In consideration of the fact that the water generated in the oil-water separation process still has certain pollution, in the embodiment of the present application, the water outlet of the oil-water separation device 50 is connected to the water treatment device 60, so that the water generated in the oil-water separation process can be further treated by the water treatment device 60 to remove the polluted impurities in the water, and qualified (i.e., water without salt and pollutants) is obtained.
Further, the water outlet of the water treatment device 60 is connected to the water storage container 70, so that qualified water which is generated after treatment and does not contain salt and pollutants can be introduced into the water storage container 70 for collection, and is convenient for subsequent use. It should be noted that the aerobic microorganism survival condition needs to have enough water, so that qualified water without salt and pollutants collected in the water storage container 70 can be introduced into the aerobic microorganism survival environment to provide conditions for the aerobic microorganism survival.
In order to prevent the oil produced in the oil-water separation process from polluting the environment, in the embodiment of the application, the oil outlet of the oil-water separation device 50 is connected with the oil storage container 80, so that the oil can be collected through the oil storage container 80 to prevent the oil from being discharged outside to cause secondary environmental pollution, and the oil resource can be recovered.
In the embodiment of the application, the extraction well 10 is used for extracting multiple phases in the soil 180 to be repaired, the multiple phases are input into the gas-liquid separation device 30 to separate gas and liquid, the gas is introduced into the gas treatment device 40 to be treated and then is injected into the soil 180 to be repaired through the aeration well 20 after being qualified, so that the pollution gas is prevented from being discharged outside to pollute the environment, oxygen can be provided for the subsequent microbial remediation soil, the volatilization of pollutants can be promoted, and the extraction of the pollution gas is facilitated; the liquid is introduced into an oil-water separation device 50 for oil-water separation, the separated water enters a water treatment device 60 for treatment, and after the water is qualified, the water without salt and pollutants is introduced into a water storage container 70 for storage so as to be reused subsequently, so that the environment pollution caused by the discharge of the polluted water can be prevented, the treated water can be recycled so as to be reused, and the effect of saving water resources is achieved; the separated petroleum is introduced into the oil storage container 80 for collection, so as to prevent the petroleum from being discharged outside to influence the environment, and petroleum resources can be recovered. Based on the setting, the soil remediation system in the embodiment of the application can be used for treating the polluted soil and effectively preventing the discharge of treatment products, so that secondary pollution can not be caused, and the resources can be reused, so that the purpose of saving the resources is achieved.
Referring to fig. 2, in some embodiments, the gas-liquid separation device 30 includes a primary gas-liquid separation tank 31 and a secondary gas-liquid separation tank 32, wherein an inlet of the primary gas-liquid separation tank 31 is connected to the other end of the extraction well 10, an outlet of the primary gas-liquid separation tank 31 is connected to an inlet of the secondary gas-liquid separation tank 32, and an outlet of the secondary gas-liquid separation tank 32 is connected to a gas inlet of the gas treatment device 40. In this way, the multiphase extracted by the extraction well 10 firstly enters the primary gas-liquid separation tank 31 to perform gas-liquid separation treatment to generate polluting gas and liquid, wherein the gas is sent to the secondary gas-liquid separation tank 32 to perform secondary separation treatment, the polluting gas and liquid are generated again after the separation treatment of the secondary gas-liquid separation tank 32, and the gas is sent to the gas treatment device 40 to be treated to remove the pollutants contained in the gas, so that relatively clean gas is obtained for subsequent secondary utilization.
Considering that the primary gas-liquid separation tank 31 and the secondary gas-liquid separation tank 32 both produce polluting liquids, in order to treat the portions of liquids, in the embodiment of the present application, the liquid outlet end of the primary gas-liquid separation tank 31 and the liquid outlet end of the secondary gas-liquid separation tank 32 are both connected to the oil-water separation device 50. Based on this, the polluting liquid generated in the primary gas-liquid separation and the secondary gas-liquid separation processes is conveyed to the oil-water separation device 50 for oil-water separation treatment, so that the petroleum in the liquid is recovered, and the pollution of the petroleum discharge to the environment is effectively prevented.
Further, the gas-liquid separation device 30 may further include a first branch 33, a second branch 34, a first on-off valve 35, a second on-off valve 36, and a heat exchanger 37, where the first branch 33 and the second branch 34 are connected in parallel between the primary gas-liquid separation tank 31 and the secondary gas-liquid separation tank 32, the first on-off valve 35 and the heat exchanger 37 are disposed on the first branch 33, and the second on-off valve 36 is disposed on the second branch 34.
Specifically, one end of each of the first branch 33 and the second branch 34 is connected to an outlet of the primary gas-liquid separation tank 31, and the other end of each of the first branch 33 and the second branch 34 is connected to an inlet of the secondary gas-liquid separation tank 32, and the on-off state of the first branch 33 can be controlled by the first on-off valve 35, and the on-off state of the second branch 34 can be controlled by the second on-off valve 36. In this way, the on-off conditions of the first branch 33 and the second branch 34 can be switched according to actual conditions. In addition, the heat exchanger 37 can realize the heat exchange effect on the gas, so as to ensure that the temperature of the gas is within a reasonable temperature range and further ensure the gas-liquid separation effect.
Based on the above arrangement, when the temperature of the gas output from the primary gas-liquid separation tank 31 is within the reasonable temperature range, the first on-off valve 35 is closed, the second on-off valve 36 is opened, and at this time, the gas is delivered to the secondary gas-liquid separation tank 32 via the second branch 34 for gas-liquid separation; when the temperature of the gas output from the first-stage gas-liquid separation tank 31 exceeds the reasonable temperature range, the first switch valve 35 is opened, the second switch valve 36 is closed, and the gas can exchange heat in the heat exchanger 37, so that the temperature of the gas entering the second-stage gas-liquid separation tank 32 is within the reasonable temperature range, and the gas-liquid separation effect can be ensured.
In some embodiments, the soil remediation system may further include a first pipe 91, a second pipe 92, and a blower 100, wherein the first pipe 91 is connected between the gas treatment device 40 and the aeration well 20, the second pipe 92 is connected between the secondary gas-liquid separation tank 32 and the gas treatment device 40, and the blower 100 is disposed in the second pipe 92. Illustratively, the blower 100 may be a high pressure blower, and the maximum air volume may be 9000m 3 /h。
Based on the above arrangement, under the driving action of the fan 100, the polluting gas generated by the gas-liquid separation in the secondary gas-liquid separation tank 32 enters the gas treatment device 40 through the second pipeline 92 for treatment, so as to remove the polluting substances in the gas and ensure the cleanliness of the gas; the treated clean gas is conveyed to the aeration well 20 through the first pipeline 91 and is injected into the soil 180 to be repaired through the aeration well 20, so that sufficient oxygen can be provided for aerobic microorganisms in the soil 180 to be repaired, and survival conditions are provided for the aerobic microorganisms; meanwhile, the air pressure of the soil to be repaired 180 can be increased to promote the volatilization of petroleum hydrocarbon, thereby promoting the repair of the soil.
In some embodiments, the soil remediation system may further include a microorganism container 110 and an injection well 120, one end of the injection well 120 is inserted into the soil 180 to be remediated, the other end of the injection well 120 is connected to an outlet of the microorganism container 110, and an inlet of the microorganism container 110 is connected to the water storage container 70. Illustratively, the diameter of injection well 120 may be DN400.
Specifically, the microorganism container 110 is used for containing a solution containing aerobic microorganisms, and the solution can be conveyed to the injection well 120 and injected into the soil to be remediated 180 through the injection well 120, so that the rebound phenomenon of low-concentration pollutants can be prevented, and the long-carbon-chain petroleum hydrocarbons can be decomposed into volatile short-carbon-chain petroleum hydrocarbons, so that the soil to be remediated 180 can be treated by the multiphase extraction technology.
Considering that water is needed for the survival of aerobic microorganisms, in the embodiment of the present application, the clean water collected in the water storage container 70 can be delivered to the microorganism container 110, so as to provide conditions for the survival of the aerobic microorganisms, and meanwhile, the water generated in the soil remediation process can be reused, so as to achieve the purpose of saving water resources.
Considering that the aerobic microorganisms need nutrients for their survival, in the embodiment of the present application, the soil remediation system can further include a nutrient solution container 140, a fourth pipeline 94 and a second pump body 132, wherein the fourth pipeline 94 is connected between the outlet of the nutrient solution container 140 and the inlet of the microorganism container 110, and the second pump body 132 is disposed on the fourth pipeline 94. Based on this, under the driving action of the second pump 132, the nutrient in the nutrient solution container 140 can be delivered to the microorganism container 110 through the fourth pipeline 94, so as to provide the necessary nutrient for the aerobic microorganism and ensure the normal existence of the aerobic microorganism.
In order to transport aerobic microorganisms to the injection well 120, the soil remediation system may further include a third pipeline 93 and a first pump body 131, wherein the third pipeline 93 is connected between the microorganism container 110 and the injection well 120, and the first pump body 131 is disposed at the third pipeline 93. Based on this, under the driving action of the first pump body 131, the solution containing the aerobic microorganisms in the microorganism container 110 is conveyed to the injection well 120 through the third pipeline 93, and is injected into the soil 180 to be repaired through the injection well 120, so that the rebound phenomenon of low-concentration pollutants can be prevented, and the long-carbon-chain petroleum hydrocarbons can be decomposed into volatile short-carbon-chain petroleum hydrocarbons, so as to facilitate the multiphase extraction technology to treat the polluted soil.
In some embodiments, the soil remediation system may further include a third pump 133 and a fourth pump 134, wherein the third pump 133 is connected between the oil outlet of the oil-water separation device 50 and the oil storage container 80, so that the oil separated in the oil-water separation device 50 can be conveyed to the oil storage container 80 for collection under the driving action of the third pump 133, so as to prevent environmental pollution caused by the oil discharged outside. The fourth pump 134 is connected between the water outlet of the water treatment device 60 and the water storage container 70, so that the water treated by the water treatment device 60 can be delivered to the water storage container 70 for collection under the driving action of the fourth pump 134, so as to facilitate subsequent secondary utilization, for example, to provide water for the survival of aerobic microorganisms.
Further, the soil remediation system may further include a fifth pump 135, wherein the fifth pump 135 is connected between the outlet of the water storage container 70 and the microorganism container 110, so that water in the water storage container 70 can be delivered to the microorganism container 110 under the driving action of the fifth pump 135, thereby providing conditions for the existence of microorganisms.
In order to ensure the safety of the system, the extraction well 10 may be connected to a pressure gauge 160, and the pressure condition inside the extraction well 10 may be constantly monitored by the pressure gauge 160, so as to control the pressure to a certain extent, thereby ensuring the extraction effect of the multiphase extraction well.
Besides, the extraction well 10 can be provided with a valve body 150, and the valve body 150 can be a safety valve, so that when the pressure in the extraction well 10 is large, the valve body 150 can be automatically opened to release the pressure, thereby ensuring the safety.
In addition, a flowmeter 170 is arranged between the other end of the extraction well 10 and the gas-liquid separation device 30, and is used for representing the soil gas flow rate, monitoring the extraction flow rate of the extraction well 10 at any time, and preventing the flow rate from being too large or too small, so as to ensure the stable and efficient operation of the soil remediation system.
Referring to fig. 1 and 3, the specific work flow of the soil remediation system in the embodiment of the present application is as follows:
flattening 180 regions (the content of petroleum hydrocarbon is less than or equal to 5%) of soil to be restored in polluted well sites, and then constructing an extraction well 10, an injection well 120 and an aeration well 20; the number of the extraction wells 10 and the injection wells 120 and the distance between the extraction wells 10 and the injection wells 120 can be determined according to various factors such as the property and permeability coefficient of the soil to be repaired 180 at a well site, and the number and the distance between the aeration wells 20 can be determined according to the number and the positions of the injection wells 120; the soil 180 to be remediated is hardened on the cement ground and the components of the soil remediation system are installed step by step.
Starting a soil remediation system, extracting multiple phases from soil 180 to be remediated by an extraction well 10, conveying the multiple phases to a primary gas-liquid separation tank 31 for primary gas-liquid separation treatment, conveying gas generated by the primary gas-liquid separation treatment into a secondary gas-liquid separation tank 32 for secondary gas-liquid separation treatment, conveying the gas subjected to the two-stage gas-liquid separation treatment into a gas treatment device 40 for secondary treatment, conveying cleaner gas generated by the secondary treatment to an aeration well 20 along a first pipeline 91 under the action of a fan 100, and injecting the cleaner gas into the soil 180 to be remediated through the aeration well 20; meanwhile, liquid generated by two-stage gas-liquid separation is conveyed to the oil-water separation device 50 for separation treatment, petroleum formed after separation is conveyed to the oil storage container 80 for collection under the action of the third pump body 133, water formed after separation enters the water treatment device 60 for treatment, treated water is conveyed to the water storage container 70 for collection under the driving action of the fourth pump body 134, and water in the water storage container 70 can also be conveyed to the microorganism container 110 under the driving action of the fifth pump body 135 to provide water for the survival of aerobic microorganisms; the nutrient in the nutrient solution container 140 is delivered to the microorganism container 110 under the action of the second pump body 132 to provide nutrient for the existence of aerobic microorganisms; the solution containing aerobic microorganisms in the microorganism container 110 is conveyed to the injection well 120 along the third pipeline 93 under the driving action of the first pump body 131, so as to be injected into the soil 180 to be remediated through the injection well 120, which can not only prevent the rebound phenomenon of low-concentration pollutants, but also decompose the long-carbon-chain petroleum hydrocarbons into volatile short-carbon-chain petroleum hydrocarbons, thereby facilitating the treatment of the polluted soil by the multiphase extraction technology.
In summary, the main advantages of the soil remediation system in the embodiment of the present application are: (1) the method can be operated in situ, is simple, has small interference to the surroundings, and can treat more polluted soil within an acceptable cost range; and the system is easy to install and transfer. (2) The blowing-off technology and the biodegradation technology are combined to improve the level of dissolved oxygen required by biodegradation and improve the activity of microorganisms. The technology can remove the volatile pollutants and simultaneously remove the non-volatile organic compounds by means of biodegradation. For treating organic pollutants with long carbon chains, the invention can not sweep out all pollutants by a simple air stripping technology, and pollutants which are difficult to volatilize and have long carbon chains are attached to soil, so that the removal rate of the pollutants is reduced. In addition, the method can treat the polluted soil and effectively prevent the discharge of treatment products, thereby not causing secondary pollution and achieving the purpose of saving resources.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the present embodiments are not limited to those precise embodiments, which are intended to be illustrative rather than restrictive, and that various changes and modifications may be effected therein by one skilled in the art without departing from the scope of the appended claims.
Claims (10)
1. A soil remediation system, comprising: the system comprises an extraction well (10), an aeration well (20), a gas-liquid separation device (30), a gas treatment device (40), an oil-water separation device (50), a water treatment device (60), a water storage container (70) and an oil storage container (80);
one end of the extraction well (10) is used for being inserted into soil (180) to be repaired, the other end of the extraction well (10) is connected with an inlet of the gas-liquid separation device (30), a gas outlet of the gas-liquid separation device (30) is connected with the gas treatment device (40), and a liquid outlet of the gas-liquid separation device (30) is connected with the oil-water separation device (50);
one end of the aeration well (20) is inserted into the soil (180) to be repaired, and the other end of the aeration well (20) is connected with the air outlet of the gas processing device (40);
the water outlet of the oil-water separation device (50) is connected with the water treatment device (60), the water outlet of the water treatment device (60) is connected with the water storage container (70), and the oil outlet of the oil-water separation device (50) is connected with the oil storage container (80).
2. Soil remediation system according to claim 1, wherein the gas-liquid separation device (30) comprises a primary gas-liquid separation tank (31) and a secondary gas-liquid separation tank (32);
the inlet of the primary gas-liquid separation tank (31) is connected with the other end of the extraction well (10), the outlet of the primary gas-liquid separation tank (31) is connected with the inlet of the secondary gas-liquid separation tank (32), and the outlet of the secondary gas-liquid separation tank (32) is connected with the gas inlet of the gas treatment device (40).
3. The soil remediation system of claim 2 wherein the gas-liquid separation device (30) further comprises a first branch (33), a second branch (34), a first on-off valve (35), a second on-off valve (36), and a heat exchanger (37);
the first branch (33) and the second branch (34) are connected in parallel between the primary gas-liquid separation tank (31) and the secondary gas-liquid separation tank (32);
the first switching valve (35) and the heat exchanger (37) are disposed in the first branch (33), and the second switching valve (36) is disposed in the second branch (34).
4. The soil remediation system of claim 2 wherein the outlet end of the primary gas-liquid separation tank (31) and the outlet end of the secondary gas-liquid separation tank (32) are both connected to the oil-water separation device (50).
5. The soil remediation system of claim 2 further comprising a first conduit (91), a second conduit (92), and a fan (100);
the first pipeline (91) is connected between the gas processing device (40) and the aeration well (20);
the second pipeline (92) is connected between the secondary gas-liquid separation tank (32) and the gas treatment device (40), and the fan (100) is arranged on the second pipeline (92).
6. The soil remediation system of claim 1 further comprising a microorganism container (110) and an injection well (120);
one end of the injection well (120) is inserted into the soil (180) to be repaired, and the other end of the injection well (120) is connected with the outlet of the microorganism container (110);
the inlet of the microorganism container (110) is connected with the water storage container (70).
7. The soil remediation system of claim 6 further comprising a third conduit (93) and a first pump body (131);
the third pipeline (93) is connected between the microorganism container (110) and the injection well (120), and the first pump body (131) is provided in the third pipeline (93).
8. The soil remediation system of claim 6 further comprising a nutrient solution container (140), a fourth conduit (94), and a second pump body (132);
the fourth pipeline (94) is connected between the nutrient solution container (140) and the microorganism container (110), and the second pump body (132) is arranged on the fourth pipeline (94).
9. Soil remediation system according to claim 1, further comprising a third pump body (133) and/or a fourth pump body (134);
the third pump body (133) is connected between an oil outlet of the oil-water separation device (50) and the oil storage container (80);
the fourth pump body (134) is connected between a water outlet of the water treatment device (60) and the water storage container (70).
10. Soil remediation system according to claim 1, wherein a valve body (150) and/or a pressure gauge (160) is connected to the extraction well (10);
and/or a flow meter (170) is arranged between the other end of the extraction well (10) and the gas-liquid separation device (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222393189.8U CN218252142U (en) | 2022-09-08 | 2022-09-08 | Soil remediation system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222393189.8U CN218252142U (en) | 2022-09-08 | 2022-09-08 | Soil remediation system |
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| CN218252142U true CN218252142U (en) | 2023-01-10 |
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| CN202222393189.8U Active CN218252142U (en) | 2022-09-08 | 2022-09-08 | Soil remediation system |
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