CN215543679U - Peculiar smell material normal position clearing device - Google Patents
Peculiar smell material normal position clearing device Download PDFInfo
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- CN215543679U CN215543679U CN202120826704.XU CN202120826704U CN215543679U CN 215543679 U CN215543679 U CN 215543679U CN 202120826704 U CN202120826704 U CN 202120826704U CN 215543679 U CN215543679 U CN 215543679U
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Abstract
The utility model relates to an peculiar smell material normal position clearing device, including experiment sand box, DC power supply, alternating current power supply and two at least electrode wells, two at least electrode wells are buried underground in the soil in the experiment sand box, two at least electrode wells according to different demands respectively with DC power supply with alternating current power supply connects, and DC power supply does two at least electrode wells provide the direct current to accelerate the migration rate of the oxidation medicament of pouring into soil, and alternating current power supply does two at least electrode wells provide the alternating current, so that the oxidation medicament of pouring into soil accelerates chemical reaction rate under alternating current power supply's effect in order to clear away peculiar smell material. The method can improve the mass transfer effect of the oxidizing agent, accelerate the oxidation reaction rate, effectively control the problem of disturbing people caused by the odor substances, and provide technical support for developing the green, high-efficiency and low-consumption odor substance in-situ removal technology.
Description
Technical Field
The application belongs to the technical field of pollution control, concretely relates to peculiar smell material normal position clearing device.
Background
Along with the continuous development of society, the peculiar smell problem in pesticide place is more and more showing, and the peculiar smell not only has the problem of disturbing residents and has brought the health risk more nearby resident. The foreign odor complaint event in recent years has become the second largest pollution complaint event next to noise complaints, and is receiving social attention. At present, several solutions are provided for solving the problem of peculiar smell: source removal, interface blocking or air diffusion reduction, wherein the source removal is the most fundamental method, and technologies such as microbial remediation, vapor extraction, in-situ thermal desorption and chemical oxidation are common pollutant source removal means, wherein the microbial remediation and vapor extraction are low in efficiency, long in period and weak in pertinence; the thermal desorption technique has good effect but high energy consumption. In the related technology, an in-situ cleaning device of a chemical oxidation technology is used for removing peculiar smell sources, but the related technology has the problems of low mass transfer efficiency of an oxidation medicament, long repair period caused by slow oxidation reaction and the like.
SUMMERY OF THE UTILITY MODEL
In order to overcome at least to a certain extent among the correlation technique, use the normal position clearing device of chemical oxidation technique to carry out the peculiar smell source and clear away, but there are the problem that oxidizing agent mass transfer efficiency is low, the repair cycle length among the correlation technique, the application provides a peculiar smell thing normal position clearing device, includes:
the device comprises an experimental sand box, a direct current power supply, an alternating current power supply and at least two electrode wells;
the at least two electrode wells are buried in soil in the experimental sand box;
the at least two electrode wells are respectively connected with the direct current power supply and the alternating current power supply according to different requirements;
the direct current power supply provides direct current for the at least two electrode wells to accelerate the migration rate of the oxidizing agent injected into the soil;
the alternating current power supply provides alternating current for the at least two electrode wells, so that the oxidizing agent injected into the soil accelerates the chemical reaction rate under the action of the alternating current power supply to remove the odor substances.
Further, the experimental sand box comprises:
the box body is provided with a plurality of air inlets,
the sealing cover is arranged above the box body, and a threaded interface is arranged at the top of the sealing cover and is in sealing connection with the electrode well;
the rubber plug is used for sealing the box body;
and the liquid injection port is used for injecting water into the box body so as to simulate the underground water level condition of an actual field.
Further, the at least two electrode wells are 4 in number, including:
the first electrode well, the second electrode well and the third electrode well are distributed in a triangular structure and are arranged at 3 vertex positions of the triangular structure;
the fourth electrode well is arranged in the center of the triangular structure.
Further, the method also comprises the following steps:
when the direct current power supply supplies power, the first electrode well, the second electrode well and the third electrode well are cathode electrode wells, and the fourth electrode well is an anode electrode well;
when the alternating current power supply supplies power, the first electrode well, the second electrode well and the third electrode well are live electrode wells, and the fourth electrode well is a neutral electrode well.
Further, the method also comprises the following steps:
a plurality of temperature monitoring wells and a plurality of temperature sensors;
at least one temperature sensor is arranged in each temperature monitoring well;
the at least one temperature sensor is respectively arranged in the temperature monitoring wells;
the temperature sensor is used for monitoring the soil temperature at different positions and different depths in the sand box.
Further, the temperature monitoring wells are 7, and specifically include:
the first temperature monitoring well is arranged at a position close to the first electrode well;
the second temperature monitoring well is arranged on a connecting line of the first electrode well and the second electrode well and is away from the first electrode well by a first distance, and the first distance is one fourth of the connecting line of the first electrode well and the second electrode well;
the third temperature monitoring well is arranged on the connecting line of the first electrode well and the second electrode well and in the middle of the first electrode well and the second electrode well;
the fourth temperature monitoring well is arranged on a connecting line of the third electrode well and the fourth electrode well and is at a second distance from the third electrode well, and the second distance is one fourth of the connecting line distance of the third electrode well and the fourth electrode well;
the fifth temperature monitoring well is arranged on a connecting line of the third electrode well and the fourth electrode well and is away from the third electrode well by a third distance, and the second distance is one half of the connecting line distance of the third electrode well and the fourth electrode well;
the sixth temperature monitoring well is arranged at a position close to the fourth electrode well;
and the seventh temperature monitoring well is arranged at the boundary position of the monitoring area.
Further, the method also comprises the following steps:
and the pressure monitoring well is used for monitoring the pressure of the soil.
Further, the method also comprises the following steps:
the soil gas monitoring device is used for monitoring whether the removal of the odor substances meets the expected requirements.
Further, the soil gas monitoring device comprises:
a flux box, an extraction pipe, an air pump and an air bag;
the flux box is arranged at the top of the experimental sand box;
the extraction pipe penetrates through the flux box and is connected with an air pump arranged outside the flux box;
the air pump is connected with the air bag.
Further, the method also comprises the following steps:
a first air switch and a second air switch;
the first air switch is connected with a direct current power supply;
the second air switch is connected with an alternating current power supply.
The technical scheme provided by the embodiment of the application can have the following beneficial effects:
the in-situ removing device for the odor substances comprises an experimental sand box, a direct-current power supply, an alternating-current power supply and at least two electrode wells, wherein the at least two electrode wells are embedded in soil in the experimental sand box, at least two electrode wells are respectively connected with the direct current power supply and the alternating current power supply according to different requirements, the direct current power supply provides direct current for the at least two electrode wells, an alternating current power supply providing alternating current to the at least two electrode wells to accelerate the rate of migration of the oxidizing agent injected into the soil, so that the oxidizing agent injected into the soil can accelerate the chemical reaction rate under the action of the alternating current power supply to remove the peculiar smell substances, the mass transfer effect of the oxidizing agent can be improved, the oxidation reaction rate is accelerated, the problem of disturbance to people caused by the odor substances is effectively controlled, and a technical support is provided for developing a green, high-efficiency and low-consumption odor substance in-situ removal technology.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
Fig. 1 is a functional structure diagram of an in-situ odor removal device according to an embodiment of the present application.
Fig. 2 is a schematic structural diagram of an in-situ odor removal device according to an embodiment of the present disclosure.
Fig. 3 is a schematic structural diagram of an in-situ odor removal device according to another embodiment of the present disclosure.
Fig. 4 is a schematic structural diagram of another in-situ odor removal device according to an embodiment of the present application.
Fig. 5 is a schematic structural diagram of another in-situ odor removal device according to an embodiment of the present application.
Fig. 6 is a schematic structural diagram of an in-situ odor removal device according to another embodiment of the present disclosure.
Fig. 7 is a schematic structural diagram of another in-situ odor removal device according to an embodiment of the present application.
Fig. 8 is a flowchart illustrating an in-situ odor removal method according to an embodiment of the present disclosure.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail below. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without making any creative effort, shall fall within the protection scope of the present application.
Fig. 1 is a functional structure diagram of an in-situ odor removing device according to an embodiment of the present application, and as shown in fig. 1, the in-situ odor removing device includes:
a test flask (not shown), a DC power supply 11, an AC power supply 12 and at least two electrode wells 13;
at least two electrode wells 13 are buried in the soil in the experimental sand box;
at least two electrode wells 13 are respectively connected with a direct current power supply and the alternating current power supply;
the direct current power supply 11 provides direct current for at least two electrode wells 13 to accelerate the migration rate of the oxidizing agent injected into the soil;
the ac power source 12 supplies ac power to at least two electrode wells 13 to accelerate the chemical reaction rate of the oxidizing agent injected into the soil under the action of the ac power source to remove the odor substances.
It should be noted that under the common action of the dc power supply and the ac power supply, the amount of the oxidizing agent can be reduced, and the cost can be saved.
At present, several solutions are provided for solving the problem of peculiar smell: source removal, interface blocking or air diffusion reduction, wherein the source removal is the most fundamental method, and technologies such as microbial remediation, vapor extraction, in-situ thermal desorption and chemical oxidation are common pollutant source removal means, wherein the microbial remediation and vapor extraction are low in efficiency, long in period and weak in pertinence; the thermal desorption technique has good effect but high energy consumption. In the related technology, an in-situ cleaning device of a chemical oxidation technology is used for removing peculiar smell sources, but the related technology has the problems of low mass transfer efficiency of an oxidation medicament, long repair period caused by slow oxidation reaction and the like.
In this embodiment, when the in-situ odor removing device is operated, firstly, the oxidizing agent is injected into the contaminated soil from the oxidizing agent injection port through the cathode electrode. And secondly, connecting the electrode well with a direct current stabilized power supply, turning on the direct current power supply to generate a direct current electric field between the cathode and the anode of the electrode, rapidly transferring the oxidation medicament from the cathode to the anode under the action of the direct current electric field, and judging whether the oxidation medicament meets preset requirements, such as full of the whole soil, by collecting soil indexes (the soil indexes include but are not limited to persulfate content, pH, oxidation-reduction potential and conductivity) and carrying out real-time detection. After the preset requirements are met, the electrode is cut off to be connected with an alternating current power supply, a direct current electric field is converted into an alternating current electric field, soil is heated, an oxidizing agent is activated under the action of heat, and the removal efficiency of pollutants is enhanced. And finally, sampling from the sampling port at different time periods to detect the pollutants until the pollutants reach the standard.
It should be noted that, the soil index detection device is the prior art, and is not described herein again.
In the embodiment, the in-situ peculiar smell substance removing device comprises an experimental sand box, a direct-current power supply, an alternating-current power supply, at least two electrode wells and electrodes with the number corresponding to that of the electrode wells, wherein the at least two electrode wells are embedded in soil in the experimental sand box; the electrode is arranged in the electrode well and is respectively connected with a direct current power supply and an alternating current power supply, and the direct current power supply provides direct current for the electrode so as to accelerate the migration rate of the oxidizing agent injected into the soil; the alternating current power supply provides alternating current for the electrodes, so that the dosage of the oxidizing agent injected into the soil is reduced under the action of the alternating current power supply, and the chemical reaction rate is accelerated to remove the odor substances. The method can effectively aim at the restoration of low-permeability stratum, can obviously reduce energy consumption compared with the in-situ thermal heat removal technology, can effectively control the problem of disturbing residents caused by the peculiar smell substances, improves the mass transfer effect of the oxidation medicament, accelerates the oxidation reaction rate, and provides technical support for developing the green, high-efficiency and low-consumption peculiar smell substance in-situ removal technology.
Fig. 2 is a schematic structural diagram of an in-situ odor removing device according to an embodiment of the present application, and as shown in fig. 2, based on the previous embodiment, the in-situ odor removing device further includes:
a first air switch 21 and a second air switch 22;
the first air switch 21 is connected to the dc power supply 11;
the second air switch 22 is connected to the ac power supply 12.
The direct current power supply 11 and the alternating current power supply 12 are respectively connected with the electrode well 13 through air switches, and after the soil indexes meet preset requirements, the air switches corresponding to the direct current power supply 11 are closed, and the air switches corresponding to the alternating current power supply 12 are opened, so that power supply switching is realized.
The dc power supply 11 is, for example, a dc regulated power supply, the ac power supply 12 is, for example, a voltage regulator, and in some embodiments, an electric control cabinet 23 is further included for performing power supply switching control and voltage control.
The electric control cabinet 23 comprises a power supply switch, an operation indicator light, a relay, an operation mode change-over switch, a watt-hour meter and the like, so as to control the operation of the test device.
In this embodiment, switching between the dc power supply and the ac power supply is performed through the first air switch and the second air switch, so that the mass transfer effect of the oxidizing agent can be improved, the oxidation reaction rate is increased, and the problem of disturbing residents caused by the odor substances is effectively controlled.
In some embodiments, the odor substance in-situ removing apparatus may be applied to a simulation experiment for removing odor substance in situ in soil, and fig. 3 is a schematic structural diagram of the odor substance in-situ removing apparatus according to an embodiment of the present disclosure, as shown in fig. 3, the odor substance in-situ removing apparatus includes:
experiment sand box 31, experiment sand box 31 are the circular experiment sand box of an organic glass material (ya keli), and the contaminated soil is filled in the sand box, and the sand box diameter is 600mm, and is high 400mm, as shown in fig. 4. The sand box surface is longitudinally provided with a graduated scale, so that the water level condition can be visually seen.
The sand box sealing cover 32, the sand box sealing cover 32 is made of organic glass;
and a rubber plug 33 for sealing to prevent the volatilization of the odor substances. The top of the sealing cover is provided with a threaded interface to ensure the air tightness of the connection with the electrode well, the temperature monitoring well and the like.
An oxidizing agent injection port 34 and an electrode cable 35 are arranged above the electrode well, and an electrical isolation cover 36 is designed at the lowest part of the electrode well. And a liquid injection port 37 is formed beside the electrode well, so that water can be injected into the experimental sand box to simulate the underground water level condition of an actual field.
The electrically isolating cover 36 allows the current to be distributed as evenly as possible over the surface of the electrode body, thereby allowing the current to be introduced evenly into the soil.
The first electrode well, the second electrode well and the third electrode well are internally provided with partition plates, oxidizing agents can be injected into the first electrode well, the second electrode well and the third electrode well in a segmented mode, for example, the oxidizing agents are injected into the first electrode well, the oxidizing agents are divided into three sections, 3 oxidizing agent injection ports with different depths are arranged on the electrode well corresponding to each pyrogenic electrode, and each layer is isolated by the partition plates. Whether the oxidizing agent has reached the predetermined location may be determined by adding a tracer to an oxidizing agent injection port on the electrode well or monitoring the conductivity of the contaminated soil.
The live wire electrode is used for heating, and in the operation process, the soil around the electrode heats up the fastest, and electrode heating has better homogeneity than other heating methods.
The air inlet of the neutral electrode adopts a cutting slot mode, and slits are arranged at equal height positions of the upper part, the middle part and the lower part of the electrode at equal intervals to be used as air pumping ports.
The side of the experimental sand box or the upper surface of the experimental sand box is provided with a hole as a monitoring hole, so that the sampling can be directly carried out when the sampling is needed, and the air tightness of the device is ensured through thread sealing when the sampling is not carried out.
An oxidizing agent injection port and an electrode cable are arranged on the electrode well. The other notes liquid mouth that sets up of electrode well can be to the water injection among the experimental apparatus, and the sand box of glass material can audio-visually see the interior water level condition of device, can be used to simulate the groundwater level degree of depth in the actual contaminated site.
The device is externally connected with the direct current voltage stabilizer, the voltage regulator and the electric box control cabinet, so that power supply switching during experiment operation is set and the operation of the experiment device is controlled.
In some embodiments, as shown in fig. 5, the number of the electrode wells is 4, and the electrode wells including the first electrode well, the second electrode well and the third electrode well are arranged in a "triangular" structure and are arranged at 3 vertex positions of the "triangular" structure; the fourth electrode well is arranged in the center of the triangular structure.
In some embodiments, the first electrode well, the second electrode well and the third electrode well are respectively embedded at the vertex and the central point of the triangle according to the layout mode of the regular triangle. The electrode wells at the three vertices of the triangle are located a predetermined distance, e.g., 100mm, from the edge of the flask, preventing the electrodes from being too close to the flask, which could damage the flask when it is heated by electricity.
In some embodiments, further comprising:
when the direct current power supply supplies power, the first electrode well, the second electrode well and the third electrode well are cathode electrode wells, and the fourth electrode well is an anode electrode well;
when the alternating current power supply supplies power, the first electrode well, the second electrode well and the third electrode well are live electrode wells, and the fourth electrode well is a neutral electrode well.
In some embodiments, further comprising:
a plurality of temperature monitoring wells and a plurality of temperature sensors;
at least one temperature sensor is arranged in each temperature monitoring well;
at least one temperature sensor is respectively arranged in the temperature monitoring wells;
at least one temperature sensor, for example 3 sensors, which are respectively arranged at the upper, middle and lower positions of the temperature monitoring well;
the temperature sensor is used for monitoring the soil temperature of different positions in the experimental sand box.
Further, a plurality of temperature monitoring well is 7, specifically includes:
the first temperature monitoring well is arranged at a position close to the first electrode well;
the second temperature monitoring well is arranged on a connecting line of the first electrode well and the second electrode well and is away from the first electrode well by a first distance, and the first distance is one fourth of the connecting line of the first electrode well and the second electrode well;
the third temperature monitoring well is arranged on the connecting line of the first electrode well and the second electrode well and in the middle of the first electrode well and the second electrode well;
the fourth temperature monitoring well is arranged on a connecting line of the third electrode well and the fourth electrode well and is at a second distance from the third electrode well, and the second distance is one fourth of the connecting line distance of the third electrode well and the fourth electrode well;
the fifth temperature monitoring well is arranged on a connecting line of the third electrode well and the fourth electrode well and is away from the third electrode well by a third distance, and the second distance is one half of the connecting line distance of the third electrode well and the fourth electrode well;
the sixth temperature monitoring well is arranged at a position close to the fourth electrode well;
and the seventh temperature monitoring well is arranged at the boundary position of the monitoring area.
In some embodiments, the sand box further comprises a temperature control meter, wherein the temperature control meter is connected with the temperature sensor and used for realizing temperature control, evaluating the influence of the direct current electric field on the temperature, controlling the temperature limit value under the condition of the alternating current electric field and describing the temperature field in the sand box.
In some embodiments, further comprising:
and the pressure monitoring well is used for monitoring the pressure of the soil. The pressure monitoring well adopts a diaphragm capsule pressure gauge to monitor the pressure of soil in the device, and the extraction time of the polluted gas is guided according to the pressure so as to prevent the polluted gas from escaping.
After the electrode well heats the soil, pollutants are extracted from the steam generated in the pores of the soil, and the steam carrying the organic pollutants is collectively called as polluted gas. In some embodiments, the system further comprises a pollution treatment device, and the polluted gas is not directly discharged after being extracted, but is discharged through the pollution treatment device, so as to reduce environmental pollution.
Fig. 6 is a schematic structural diagram of an in-situ odor removing device according to an embodiment of the present application, and as shown in fig. 6, the in-situ odor removing device includes:
the soil gas monitoring device is used for monitoring whether the removal of the odor substances meets the expected requirements.
In some embodiments, a soil gas monitoring device comprises:
an extraction tube 61, an air pump 62, an air bag 63, and a flux case 64;
the flux box 64 is arranged at the top of the experimental sand box;
the extraction pipe 61 passes through the flux box 64 and is connected with an air pump 62 arranged outside the flux box 64;
the air pump 62 is connected with the air bag 63;
based on the soil sample test results, the top cover is removed and the flux box 64 is installed, typically after the device is at least stopped heating for 24 hours after the target contaminant is met. The flux box 64 is arranged at the top of the experimental sand box, the flux box 64 and the experimental sand box are sealed through rubber plugs, and the side of the flux box 64 is slotted to ensure that air flow passes through. The flux box 64 can be pumped by the air pump 62, and the collected gas samples are collected in the air bags 63, in some embodiments, 2 air bag samples are collected in each batch, one air bag sample is used for odor intensity identification, and the other air bag sample is used for calculating the release flux of the odor substances, so that the odor removal effect of the polluted soil under the non-disturbance condition can be comprehensively evaluated. In some embodiments, a disturbance rod is extended into the polluted soil from a sampling hole at the side of the experimental sand box for stirring, the release flux and odor intensity of the odor substances under the disturbance condition are monitored, and whether the ectopic excavation treatment can be carried out or not is evaluated.
As shown in fig. 7, the device further comprises a recorder 71, and the temperature monitoring well is connected with the recorder 71 to realize real-time online monitoring and recording of soil temperature change.
In some embodiments, the recorder 71 is connected to the pressure monitoring well, so as to realize real-time online monitoring and recording of soil pressure changes.
In the embodiment, the odor substances polluting the site can be effectively removed in an in-situ mode under the non-disturbance condition through the electro-thermal coupling chemical oxidation, and the method can be applied to a large-scale repairing site to reduce the energy consumption of a repairing process.
Fig. 8 is a flowchart illustrating an in-situ odor removal method according to an embodiment of the present application, where the in-situ odor removal method, as shown in fig. 8, includes:
s81: providing direct current for at least two electrode wells through a direct current power supply to accelerate the migration rate of the oxidizing agent injected into the soil;
s82: and supplying alternating current to at least two electrode wells through the alternating current power supply, so that the oxidizing agent accelerates the chemical reaction rate under the action of the alternating current power supply to remove the odor substances.
In this embodiment, the direct current is provided to the at least two electrode wells by the direct current power supply, so that the migration rate of the oxidizing agent injected into the soil is accelerated, the alternating current power supply provides alternating current to the at least two electrode wells, so that the oxidizing agent accelerates the chemical reaction rate under the action of the alternating current power supply to remove the odor substances, the problem of disturbing people caused by the odor substances can be effectively controlled, the mass transfer effect of the oxidizing agent is improved, the oxidation reaction rate is accelerated, and a technical support is provided for developing a green, efficient and low-consumption odor substance in-situ removal technology.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
It should be noted that the present invention is not limited to the above-mentioned preferred embodiments, and those skilled in the art can derive other products in various forms without departing from the scope of the present invention, but any changes in shape or structure can be made within the scope of the present invention with the same or similar technical solutions as the present invention.
Claims (10)
1. An in-situ odor removal device, comprising:
the device comprises an experimental sand box, a direct current power supply, an alternating current power supply and at least two electrode wells;
the at least two electrode wells are buried in soil in the experimental sand box;
the at least two electrode wells are respectively connected with the direct current power supply and the alternating current power supply according to different requirements;
the direct current power supply provides direct current for the at least two electrode wells to accelerate the migration rate of the oxidizing agent injected into the soil;
the alternating current power supply provides alternating current for the at least two electrode wells, so that the oxidizing agent injected into the soil accelerates the chemical reaction rate under the action of the alternating current power supply to remove the odor substances.
2. The in-situ odor substance removing device according to claim 1, wherein said experimental flask comprises:
the box body is provided with a plurality of air inlets,
the sealing cover is arranged above the box body, and a threaded interface is arranged at the top of the sealing cover and is in sealing connection with the electrode well;
the rubber plug is used for sealing the box body;
and the liquid injection port is used for injecting water into the box body so as to simulate the underground water level condition of an actual field.
3. The in-situ odor substance removing device according to claim 1, wherein said at least two electrode wells are 4 in number, comprising:
the first electrode well, the second electrode well and the third electrode well are distributed in a triangular structure and are arranged at 3 vertex positions of the triangular structure;
the fourth electrode well is arranged in the center of the triangular structure.
4. The in-situ odor substance removing device as claimed in claim 3, further comprising:
when the direct current power supply supplies power, the first electrode well, the second electrode well and the third electrode well are cathode electrode wells, and the fourth electrode well is an anode electrode well;
when the alternating current power supply supplies power, the first electrode well, the second electrode well and the third electrode well are live electrode wells, and the fourth electrode well is a neutral electrode well.
5. The in-situ odor substance removing device as claimed in claim 4, further comprising:
a plurality of temperature monitoring wells and a plurality of temperature sensors;
at least one temperature sensor is arranged in each temperature monitoring well;
the at least one temperature sensor is respectively arranged in the temperature monitoring wells;
the temperature sensor is used for monitoring the soil temperature at different positions and different depths in the experimental sand box.
6. The in-situ odor substance removing device according to claim 5, wherein the number of the plurality of temperature monitoring wells is 7, and the device specifically comprises:
the first temperature monitoring well is arranged at a position close to the first electrode well;
the second temperature monitoring well is arranged on a connecting line of the first electrode well and the second electrode well and is away from the first electrode well by a first distance, and the first distance is one fourth of the connecting line of the first electrode well and the second electrode well;
the third temperature monitoring well is arranged on the connecting line of the first electrode well and the second electrode well and in the middle of the first electrode well and the second electrode well;
the fourth temperature monitoring well is arranged on a connecting line of the third electrode well and the fourth electrode well and is at a second distance from the third electrode well, and the second distance is one fourth of the connecting line distance of the third electrode well and the fourth electrode well;
the fifth temperature monitoring well is arranged on a connecting line of the third electrode well and the fourth electrode well and is away from the third electrode well by a third distance, and the second distance is one half of the connecting line distance of the third electrode well and the fourth electrode well;
the sixth temperature monitoring well is arranged at a position close to the fourth electrode well;
and the seventh temperature monitoring well is arranged at the boundary position of the monitoring area.
7. The in-situ odor substance removing device as claimed in claim 1, further comprising: and the pressure monitoring well is used for monitoring the pressure of the soil.
8. The apparatus of claim 1, further comprising a soil gas monitoring device for monitoring whether the odor removal is satisfactory.
9. The apparatus of claim 8, wherein the soil gas monitoring device comprises:
a flux box, an extraction pipe, an air pump and an air bag;
the flux box is arranged at the top of the experimental sand box;
the extraction pipe penetrates through the flux box and is connected with an air pump arranged outside the flux box;
the air pump is connected with the air bag.
10. The in-situ odor substance removing device as claimed in claim 1, further comprising:
a first air switch and a second air switch;
the first air switch is connected with a direct current power supply;
the second air switch is connected with an alternating current power supply.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113020246A (en) * | 2021-04-21 | 2021-06-25 | 中科鼎实环境工程有限公司 | In-situ removing device and method for odor substances |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113020246A (en) * | 2021-04-21 | 2021-06-25 | 中科鼎实环境工程有限公司 | In-situ removing device and method for odor substances |
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