CN113770172A - In-situ remediation method for soil pollution in low-temperature environment - Google Patents
In-situ remediation method for soil pollution in low-temperature environment Download PDFInfo
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- CN113770172A CN113770172A CN202110860620.2A CN202110860620A CN113770172A CN 113770172 A CN113770172 A CN 113770172A CN 202110860620 A CN202110860620 A CN 202110860620A CN 113770172 A CN113770172 A CN 113770172A
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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
- B09C1/10—Reclamation of contaminated soil microbiologically, biologically or by using enzymes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
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Abstract
The invention discloses a soil pollution in-situ remediation method under low temperature environment, belonging to the environmental protection field, the soil pollution in-situ remediation method under low temperature environment is characterized in that the traditional microbial liquid is improved, the splashing remediation mode is abandoned, the characteristic of frozen soil frost crack in low temperature weather is fully utilized, the cultured pollution remediation microbial population is directly injected into a microbial storage inner ball through an injection pipe and is refrigerated and stored, the microbial activity is reduced, genetic variation is avoided, the storage is convenient, when in use, a self-adaptive remediation ball is directly put into a frozen soil frost crack point and is then injected with water, the self-adaptive remediation ball can penetrate through various complex terrains of a frost crack layer through the mutual matching between a telescopic outer ball and the microbial storage inner ball, the microbial population is smoothly activated and extruded at the bottom end of the frozen soil layer, and the problem of low temperature environment is effectively solved, the volatilized liquid medicine is frozen on the surface layer of the soil and cannot permeate into the soil, so that the pollution remediation effect is not ideal.
Description
Technical Field
The invention relates to the field of environmental protection, in particular to an in-situ remediation method for soil pollution in a low-temperature environment.
Background
The soil remediation is a technical measure for restoring the normal function of polluted soil, the existing soil remediation technology reaches more than one hundred in the soil remediation industry, the common technology is more than ten, the technology can be roughly divided into three methods of physics, chemistry and biology, and since the 20 th century and the 80 th year, the polluted soil treatment and remediation plan is established and developed in many countries in the world, particularly developed countries, so that a new soil remediation industry is formed.
The physical remediation mainly utilizes the difference of various physical characteristics between pollutants and soil particles and between polluted soil particles and non-polluted soil particles to achieve the purposes of removing and separating the pollutants from the soil, the chemical remediation is a method for adding a chemical remediation agent on the site of the polluted soil to degrade the pollutants or remove the toxicity of the pollutants through a chemical conversion mechanism and chemically fixing the pollutants to reduce the activity or bioavailability of the pollutants, the microbial remediation mainly achieves the effects of reducing, purifying and fixing heavy metals through microbial absorption and metabolism, and the microbial remediation is a novel soil pollution remediation technology and is widely popularized and used due to the characteristics of low investment, high benefit and convenient application.
The liquid medicine that the microorganism generally made splashes to needs prosthetic soil surface, then the infiltration through the liquid medicine and then drives the microorganism and enter into the soil aspect of treating the restoration, restores the soil that pollutes, and the microorganism that the rethread water injection will adsorb to have the heavy metal filters out from soil, but in microthermal environment, the liquid medicine of volatilizing out can be frozen on the soil top layer and can't permeate into soil, leads to polluting the repair effect unsatisfactory.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a soil pollution in-situ remediation method under a low-temperature environment, which can realize that the traditional microbial liquid medicine is improved, the splashing remediation mode is abandoned, the characteristic of frozen soil frost crack in low-temperature weather is fully utilized, the cultured pollution remediation microbial population is directly injected into a microbial storage inner ball through an injection pipe, the microbial storage inner ball is refrigerated and stored when not in use, the microbial activity is reduced, genetic variation is avoided, the storage is convenient, when in need of use, the self-adaptive remediation ball is directly put into a frozen soil crack point and then is injected with water, the self-adaptive remediation ball can penetrate through various complex terrains of a frozen crack layer through the mutual matching between the telescopic outer ball and the microbial storage inner ball, the microbial population is smoothly activated and extruded at the bottom end of the frozen soil layer, and the problem in the low-temperature environment is effectively solved, the volatilized liquid medicine is frozen on the surface layer of the soil and cannot permeate into the soil, so that the pollution remediation effect is not ideal.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
An in-situ remediation method for soil pollution in a low-temperature environment comprises the following steps:
s1, detection: sampling soil in an area to be detected, detecting, and judging whether the area is polluted or not according to detected data, wherein the main pollution source is;
s2, culturing: culturing the microorganisms in the polluted soil to culture a pollution repairing microorganism group which can form competitiveness with the microorganism group in the original soil, and growing and breeding the microorganism group under the condition suitable for the existence of the microorganism;
s3, injection: injecting the cultured microbial liquid medicine into the self-adaptive repair ball, and freezing and storing the microbial liquid medicine;
s4, putting: 1) water injection: putting the self-adaptive repairing ball from the frost crack of the soil in a low-temperature environment, and injecting water;
5) activating: when water enters the interior of the self-adaptive repairing ball and reacts with calcium oxide in the self-adaptive repairing ball to generate a large amount of heat, the pollution repairing microbial flora frozen in the self-adaptive repairing ball is activated;
6) and (3) positioning: the self-adaptive repairing ball can automatically adapt to different terrain environments in a frost crack, and carries the pollution repairing microbial community into the polluted soil;
7) releasing: the pollution remediation microbial community is extruded and released from the self-adaptive remediation ball;
s5, repairing: the pollution remediation microbe permeates into the soil from two sides along with water in the soil to adsorb pollutants;
s6, recovery: after a remediation cycle is completed, water is pumped away from the frost crack in the soil, and the adaptive remediation balls and contaminant-adsorbed microbial populations are recovered with the water stream and then treated accordingly.
Further, the temperature of the adaptive repair balloon in the activated state in step S3 is about 20 ℃, and this temperature is the temperature at which the microbial population activity is highest.
Further, the adaptive repair ball in the step S includes a retractable outer ball and a microorganism storage inner ball, and the microorganism storage inner ball is fixedly connected to the inside of the retractable outer ball.
Further, scalable ectosphere includes ectosphere shell, propulsion pipe and sealed lid, the outer wall in ectosphere shell is evenly connected to the propulsion pipe, and communicates each other between ectosphere shell and the propulsion pipe, sealed lid fixed connection is in the propulsion pipe department on the ectosphere shell, and sealed lid seals the propulsion pipe up for safekeeping.
Further, the ball includes interior spherical shell, the extruded pipe of microorganism, blocks the net, extrudes ball, injection syringe and top cap in the microorganism storage, the ball passes through interior spherical shell and the middle part of injection syringe joint in scalable outer ball in the microorganism storage, the outer wall of sphere shell in microorganism extruded pipe fixed connection, and communicate each other between interior spherical shell and the microorganism extruded pipe, separation network card joint is in the bottom of microorganism extruded pipe, extrude the middle part of ball fixed connection in interior spherical shell, the terminal fixedly connected with bent angle of injection syringe, the bent angle runs through interior spherical shell and outer spherical shell and stretches into the inside of interior spherical shell, the one end that the injection syringe is close to each other is excavated there is the injection hole, the bottom of top cap is excavated there is the groove that blocks, the top cap is through blocking groove joint in the outer wall of injection hole.
Furthermore, the diameter of the telescopic outer ball is larger than that of the inner microbial storage ball, so that the initial state of the inner microbial storage ball is not influenced by the contraction of the telescopic outer ball in the throwing process.
Furthermore, the outer spherical shell is made of a thermal shrinkage material, the outer spherical shell is made of an elastic material, and the sealing cover is made of a water-soluble material.
Furthermore, a plurality of foam plastic balls are filled in the microorganism extrusion pipe, and the length of the blocking net is equal to the diameter of the microorganism extrusion pipe.
Furthermore, the number of the inner spherical shells is four, and two adjacent inner spherical shells are bonded together by using an adhesive, the adhesive is doped with calcium oxide particles, when the self-adaptive repair ball on the frost crack layer contacts water, the sealing cover is dissolved along with the water, the water enters the telescopic outer ball from the position and then contacts with the adhesive between the two adjacent inner spherical shells, the calcium oxide particles doped in the adhesive react to generate a large amount of heat and are conducted to the outer spherical shells through water flow, the outer spherical shells are subjected to thermal shrinkage and reduced in size, so that a gap with a small interval in the frost crack layer is favorably formed, meanwhile, when the outer spherical shells are subjected to thermal shrinkage, the water stored between the telescopic outer ball and the microorganism storage inner ball is extruded to an external space, and if the self-adaptive repair ball falls on the notch of the frost crack layer, the water extruded to the external space can provide a reverse acting force for the self-adaptive repair ball through the notch wall, make it break away from the notch, so, self-adaptation restoration ball alright arrive the frost crack layer bottom smoothly, and can not block in the intermediate level for the condition that the microorganism crowd can't accurately put in takes place.
Furthermore, the extrusion ball is made of elastic materials, ammonium chloride particles are filled in the extrusion ball, when water slowly permeates into the adhesive in the direction of the extrusion ball, heat generated by reaction with calcium oxide particles in the adhesive is conducted to the extrusion ball, the ammonium chloride particles filled in the extrusion ball are heated and decomposed to generate a large amount of gas, so that the extrusion ball expands, the microorganism groups are extruded from the extrusion ball in the microorganism storage inner ball and are put at the bottom end of the frost crack layer, the foam plastic ball can prevent the microorganism groups in the microorganism storage inner ball from leaking in the process of falling, the utilization rate of the microorganisms is improved, and the blocking net blocks the foam plastic ball and prevents the leakage of the foam plastic ball into the microorganism groups stored in the microorganism storage inner ball.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) the scheme can realize that through improving the traditional microbial liquid medicine, abandons the splashing restoration mode, fully utilizes the characteristic of frozen soil frost crack in low temperature weather, directly injects the cultured pollution restoration microbial population into the microbial storage inner ball through the injection pipe, is refrigerated and stored when not in use, reduces the microbial activity, avoids genetic variation, facilitates the storage, when in use, directly puts the self-adaptive restoration ball into the frozen soil frost crack point, then injects water, can pass through various complex terrains of the frozen crack layer through the mutual matching between the telescopic outer ball and the microbial storage inner ball, smoothly activates and extrudes the microbial population at the bottom end of the frozen soil layer, effectively solves the problem that the volatilized liquid medicine can be frozen on the soil surface layer and can not permeate into the soil in the low temperature environment, leading to the problem of unsatisfactory pollution remediation effect.
(2) The temperature of the adaptive repair sphere in the activated state in step S3 is about 20 ℃, and this temperature is the temperature at which the microbial population activity is the highest.
(3) The diameter of the telescopic outer ball is larger than that of the inner microbial storage ball, so that the initial state of the inner microbial storage ball is not influenced by the contraction of the telescopic outer ball in the putting process.
(4) When the self-adaptive repairing ball of the frost crack layer is contacted with water, the sealing cover is dissolved along with the water, the water enters the telescopic outer ball from the position and further contacts with the adhesive between two adjacent inner ball shells, and reacts with calcium oxide particles doped in the adhesive to generate a large amount of heat which is conducted to the outer ball shells through water flow, the outer ball shells are subjected to thermal shrinkage, the size is reduced, the gap with a smaller interval in the frost crack layer is facilitated, meanwhile, when the outer ball shells are subjected to thermal shrinkage, the water stored between the telescopic outer ball and the microorganism storage inner ball is extruded to an external space, if the self-adaptive repairing ball falls on the notch of the frost crack layer, the water extruded to the external space can provide a reverse acting force for the self-adaptive repairing ball through the notch wall, so that the self-adaptive repairing ball can smoothly freeze to the bottom end of the frost crack layer without being clamped in the intermediate layer, so that the situation that the microorganism groups cannot be accurately dosed occurs.
(5) When water slowly permeates into the inside of the adhesive in the direction of the extrusion ball, heat generated by reaction with calcium oxide particles in the adhesive is conducted to the extrusion ball, ammonium chloride particles filled in the extrusion ball are heated and decomposed to generate a large amount of gas, so that the extrusion ball expands, the extrusion ball is extruded to extrude the microbial community from the extrusion ball and is placed at the bottom end of the frost crack layer, the foam plastic ball can prevent the microbial community in the microbial storage ball from leaking in the process of falling, the utilization rate of the microbes is improved, and the barrier net blocks the foam plastic ball to prevent the leakage of the microbial community stored in the microbial storage ball.
Drawings
FIG. 1 is a schematic flow chart of the present invention;
FIG. 2 is a schematic diagram illustrating a landing state of the adaptive repairing ball in a frost crack layer according to the present invention;
FIG. 3 is a schematic cross-sectional structural view of the self-adaptive repair ball body according to the present invention;
FIG. 4 is a schematic view of the structure of FIG. 3 at A in accordance with the present invention;
FIG. 5 is a schematic view of the inner shell portion of the present invention;
FIG. 6 is a schematic view of the structure of FIG. 5 at B in accordance with the present invention;
FIG. 7 is a schematic diagram of an external structure of the adaptive restoring ball according to the present invention;
fig. 8 is a schematic structural view at C of fig. 7 according to the present invention.
The reference numbers in the figures illustrate:
11. a retractable outer ball; 111. an outer spherical shell; 112. pushing the pipe; 113. a sealing cover; 12. a microorganism storage inner sphere; 121. an inner spherical shell; 122. a microbial extrusion tube; 123. a barrier net; 124. extruding the ball; 125. an injection tube; 126. a top cover; 3. an injection hole; 4. blocking the slot.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1, an in-situ remediation method for soil pollution in a low-temperature environment includes the following steps:
s1, detection: sampling soil in an area to be detected, detecting, and judging whether the area is polluted or not according to detected data, wherein the main pollution source is;
s2, culturing: culturing the microorganisms in the polluted soil to culture a pollution repairing microorganism group which can form competitiveness with the microorganism group in the original soil, and growing and breeding the microorganism group under the condition suitable for the existence of the microorganism;
s3, injection: injecting the cultured microbial liquid medicine into the self-adaptive repair ball, and freezing and storing the microbial liquid medicine;
s4, putting: 1) water injection: putting the self-adaptive repairing ball from the frost crack of the soil in a low-temperature environment, and injecting water;
8) activating: when water enters the interior of the self-adaptive repairing ball and reacts with calcium oxide in the self-adaptive repairing ball to generate a large amount of heat, the pollution repairing microbial flora frozen in the self-adaptive repairing ball is activated;
9) and (3) positioning: the self-adaptive repairing ball can automatically adapt to different terrain environments in a frost crack, and carries the pollution repairing microbial community into the polluted soil;
10) releasing: the pollution remediation microbial community is extruded and released from the self-adaptive remediation ball;
s5, repairing: the pollution remediation microbe permeates into the soil from two sides along with water in the soil to adsorb pollutants;
s6, recovery: after a remediation cycle is completed, water is pumped away from the frost crack in the soil, and the adaptive remediation balls and contaminant-adsorbed microbial populations are recovered with the water stream and then treated accordingly.
Referring to fig. 2, the temperature of the adaptive repair sphere in step S3 in the activated state is about 20 ℃, which is the temperature at which the microbial population has the highest activity.
Referring to fig. 3 to 4, the adaptive repair ball of step S3 includes a retractable outer ball 11 and a microbe-storing inner ball 12, and the microbe-storing inner ball 12 is fixedly connected to the retractable outer ball 11.
The telescopic outer ball 11 comprises an outer ball shell 111, a push pipe 112 and a sealing cover 113, wherein the push pipe 112 is uniformly connected to the outer wall of the outer ball shell 111, the outer ball shell 111 and the push pipe 112 are communicated with each other, the sealing cover 113 is fixedly connected to the push pipe 112 on the outer ball shell 111, and the sealing cover 113 seals the push pipe 112.
The diameter of the retractable outer ball 11 is larger than that of the microorganism storage inner ball 12, so that the initial state of the microorganism storage inner ball 12 is not influenced by the shrinkage of the retractable outer ball 11 in the throwing process.
The outer spherical shell 111 is made of a heat-shrinkable material, the push tube 112 is made of an elastic material, and the sealing cover 113 is made of a water-soluble material.
Referring to fig. 5-8, the microorganism storage inner ball 12 includes an inner ball casing 121, a microorganism extrusion pipe 122, a blocking net 123, an extrusion ball 124, an injection pipe 125 and a top cover 126, the microorganism storage inner ball 12 is clamped in the middle of the retractable outer ball 11 through the inner ball casing 121 and the injection pipe 125, the microorganism extrusion pipe 122 is fixedly connected to the outer wall of the inner ball casing 121, the inner ball casing 121 and the microorganism extrusion pipe 122 are communicated with each other, the blocking net 123 is clamped in the bottom end of the microorganism extrusion pipe 122, the extrusion ball 124 is fixedly connected to the middle of the inner ball casing 121, the end of the injection pipe 125 is fixedly connected with a bend angle, the bend angle penetrates through the inner ball casing 121 and the outer ball casing 111 and extends into the inner ball casing 121, an injection hole 3 is drilled at one end of the injection pipe 125 close to each other, a blocking groove 4 is drilled at the bottom end of the top cover 126, and the top cover 126 is clamped in the outer wall of the injection hole 3 through the blocking groove 4.
The microorganism extrusion pipe 122 is filled with a plurality of foam plastic balls, and the length of the blocking net 123 is equal to the diameter of the microorganism extrusion pipe 122.
The number of the inner spherical shells 121 is four, and two adjacent inner spherical shells 121 are bonded together by using an adhesive, the adhesive is doped with calcium oxide particles, when the adaptive repair ball on the frost crack layer contacts water, the sealing cover 113 is dissolved with the water, the water enters the inside of the telescopic outer sphere 11 from the push pipe 112 and further contacts with the adhesive between two adjacent inner spherical shells 121, the calcium oxide particles doped in the adhesive react to generate a large amount of heat and are conducted to the outer spherical shell 111 through water flow, the outer spherical shell 111 is subjected to thermal shrinkage and size reduction, a gap with a smaller interval in the frost crack layer is facilitated, meanwhile, when the outer spherical shell 111 is subjected to thermal shrinkage, the water stored between the telescopic outer sphere 11 and the microorganism inner sphere 12 is extruded to an external space through the push pipe 112, if the adaptive repair ball falls on the groove of the frost crack layer, the water extruded to the external space can provide a reverse acting force to the adaptive repair ball through the groove wall, make it break away from the notch, so, self-adaptation restoration ball alright arrive the frost crack layer bottom smoothly, and can not block in the intermediate level for the condition that the microorganism crowd can't accurately put in takes place.
Referring to fig. 5, the extrusion ball 124 is made of an elastic material, ammonium chloride particles are filled in the extrusion ball 124, when water slowly permeates into the inside of the adhesive in the direction of the extrusion ball 124, heat generated by reaction with calcium oxide particles in the adhesive is transferred to the extrusion ball 124, the ammonium chloride particles filled in the extrusion ball 124 are heated and decomposed to generate a large amount of gas, so that the extrusion ball 124 expands, the microorganism groups are extruded from the extrusion ball 12 to the bottom end of the frost crack layer, and the foam plastic ball can prevent the microorganism groups in the microorganism storage ball 12 from leaking in the process of falling, thereby improving the utilization rate of the microorganisms, and the blocking net 123 blocks the foam plastic ball to prevent the leakage of the microorganism groups stored in the microorganism storage ball 12.
The invention can realize that through improving the traditional microbial liquid medicine and abandoning the splashing and repairing mode, the characteristics of frozen soil frost crack in low temperature weather are fully utilized, the cultured pollution repairing microbial population is directly injected into the microbial storage inner ball 12 through the injection pipe 125, the microbial storage inner ball is refrigerated and stored when not needed, the microbial activity is reduced, the genetic variation is avoided, the storage is convenient, when the microbial liquid medicine needs to be used, the self-adaptive repairing ball is directly put at the frozen soil frost crack point and then is injected with water, the self-adaptive repairing ball 11 can pass through various complex terrains of the frozen crack layer through the mutual matching between the telescopic outer ball and the microbial storage inner ball 12, the microbial population is smoothly activated and extruded at the bottom end of the frozen soil layer, the problem that the volatilized liquid medicine can be frozen on the surface layer of the soil and can not permeate into the soil in the low temperature environment is effectively solved, leading to the problem of unsatisfactory pollution remediation effect.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (10)
1. An in-situ remediation method for soil pollution in a low-temperature environment is characterized by comprising the following steps: the method comprises the following steps:
s1, detection: sampling soil in an area to be detected, detecting, and judging whether the area is polluted or not according to detected data, wherein the main pollution source is;
s2, culturing: culturing the microorganisms in the polluted soil to culture a pollution repairing microorganism group which can form competitiveness with the microorganism group in the original soil, and growing and breeding the microorganism group under the condition suitable for the existence of the microorganism;
s3, injection: injecting the cultured microbial liquid medicine into the self-adaptive repair ball, and freezing and storing the microbial liquid medicine;
s4, putting: 1) water injection: putting the self-adaptive repairing ball from the frost crack of the soil in a low-temperature environment, and injecting water;
2) activating: when water enters the interior of the self-adaptive repairing ball and reacts with calcium oxide in the self-adaptive repairing ball to generate a large amount of heat, the pollution repairing microbial flora frozen in the self-adaptive repairing ball is activated;
3) and (3) positioning: the self-adaptive repairing ball can automatically adapt to different terrain environments in a frost crack, and carries the pollution repairing microbial community into the polluted soil;
4) releasing: the pollution remediation microbial community is extruded and released from the self-adaptive remediation ball;
s5, repairing: the pollution remediation microbe permeates into the soil from two sides along with water in the soil to adsorb pollutants;
s6, recovery: after a remediation cycle is completed, water is pumped away from the frost crack in the soil, and the adaptive remediation balls and contaminant-adsorbed microbial populations are recovered with the water stream and then treated accordingly.
2. The in-situ remediation method for soil pollution in a low-temperature environment according to claim 1, wherein the remediation method comprises the following steps: the temperature of the adaptive repair ball in the step S3 is about 20 ℃ in the activated state.
3. The in-situ remediation method for soil pollution in a low-temperature environment according to claim 1, wherein the remediation method comprises the following steps: the adaptive repair ball in the step S3 comprises a telescopic outer ball (11) and a microorganism storage inner ball (12), wherein the microorganism storage inner ball (12) is fixedly connected in the telescopic outer ball (11).
4. The in-situ remediation method for soil pollution in a low-temperature environment according to claim 3, wherein the remediation method comprises the following steps: scalable ectosphere (11) are including ectosphere shell (111), promote pipe (112) and sealed lid (113), promote pipe (112) evenly connected in the outer wall of ectosphere shell (111), and communicate each other between ectosphere shell (111) and the promotion pipe (112), sealed lid (113) fixed connection promotes pipe (112) department on ectosphere shell (111), and sealed lid (113) will promote pipe (112) and seal up.
5. The in-situ remediation method for soil pollution in a low-temperature environment according to claim 3, wherein the remediation method comprises the following steps: the microorganism storage inner ball (12) comprises an inner ball shell (121), a microorganism extrusion pipe (122), a blocking net (123), an extrusion ball (124), an injection pipe (125) and a top cover (126), the microorganism storage inner ball (12) is connected with the middle part of the telescopic outer ball (11) in a clamping mode through the inner ball shell (121) and the injection pipe (125), the microorganism extrusion pipe (122) is fixedly connected with the outer wall of the inner ball shell (121), the inner ball shell (121) and the microorganism extrusion pipe (122) are communicated with each other, the blocking net (123) is connected with the bottom end of the microorganism extrusion pipe (122) in a clamping mode, the extrusion ball (124) is fixedly connected with the middle part of the inner ball shell (121), the tail end of the injection pipe (125) is fixedly connected with a bend angle, the bend angle penetrates through the inner ball shell (121) and the outer ball shell (111) and extends into the inner ball shell (121), and one end, close to the injection pipe (125) is provided with an injection hole (3), the bottom end of the top cover (126) is provided with a blocking groove (4), and the top cover (126) is clamped on the outer wall of the injection hole (3) through the blocking groove (4).
6. The in-situ remediation method for soil pollution in a low-temperature environment according to claim 3, wherein the remediation method comprises the following steps: the diameter of the telescopic outer ball (11) is larger than that of the microorganism storage inner ball (12).
7. The in-situ remediation method for soil pollution in a low-temperature environment according to claim 4, wherein the remediation method comprises the following steps: the outer spherical shell (111) is made of a heat-shrinkable material, the pushing pipe (112) is made of an elastic material, and the sealing cover (113) is made of a water-soluble material.
8. The in-situ remediation method for soil pollution in a low-temperature environment according to claim 5, wherein the remediation method comprises the following steps: the microorganism extrusion pipe (122) is filled with a plurality of foam plastic balls, and the length of the blocking net (123) is equal to the diameter of the microorganism extrusion pipe (122).
9. The in-situ remediation method for soil pollution in a low-temperature environment according to claim 5, wherein the remediation method comprises the following steps: the number of the inner spherical shells (121) is four, and two adjacent inner spherical shells (121) are bonded together by using an adhesive, wherein calcium oxide particles are doped in the adhesive.
10. The in-situ remediation method for soil pollution in a low-temperature environment according to claim 5, wherein the remediation method comprises the following steps: the extrusion ball (124) is made of elastic materials, and ammonium chloride particles are filled in the extrusion ball (124).
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| CN109174961A (en) * | 2018-08-31 | 2019-01-11 | 成都理工大学 | A kind of soil remediation microorganism sustained-release microspheres |
| CN111889507A (en) * | 2020-06-17 | 2020-11-06 | 冯杰英 | Childbirth-simulated biological heavy metal soil remediation ball |
| CN112275793A (en) * | 2020-09-09 | 2021-01-29 | 芜湖圆梦环保科技有限公司 | Microbial slow-release ball for soil remediation and remediation device |
| CN112718832A (en) * | 2020-12-17 | 2021-04-30 | 徐州云乐环保设备科技有限公司 | Self-dispersion remediation method for heavy metal contaminated soil |
| CN112958616A (en) * | 2021-02-03 | 2021-06-15 | 李慧 | Air-blast type desertification soil treatment method |
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