CN111282988B - Continuous pre-buried bin for soil heavy metal restoration - Google Patents
Continuous pre-buried bin for soil heavy metal restoration Download PDFInfo
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- CN111282988B CN111282988B CN202010175818.2A CN202010175818A CN111282988B CN 111282988 B CN111282988 B CN 111282988B CN 202010175818 A CN202010175818 A CN 202010175818A CN 111282988 B CN111282988 B CN 111282988B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C2101/00—In situ
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Abstract
The invention discloses a continuous pre-buried bin for repairing heavy metal in soil, which belongs to the field of soil repair, and can release buffer solution to the surrounding soil through a plurality of diffusion whiskers under a normal state by arranging bidirectional continuous spaces so as to effectively balance the pH value of the soil, and when the buffer solution is released, the buffer solution can form an extrusion effect on heavy metal ion adsorption powder which is adsorbed with heavy metal ions in the diffusion whiskers so as to extrude the heavy metal ion adsorption powder from the end parts of the diffusion whiskers, and the inner deformation end deforms under a negative pressure state until the inner deformation end is communicated with the diffusion whiskers, and new heavy metal ion adsorption powder can enter the diffusion whiskers, so that the heavy metal ion adsorption powder in the diffusion whiskers can be effectively supplemented, the heavy metal ion adsorption powder in the diffusion whiskers can be continuously updated, and the sustainable adsorption effect on the heavy metal ions of the pre-buried bin can be effectively ensured, thereby effectively improving the soil remediation efficiency.
Description
Technical Field
The invention relates to the field of soil remediation, in particular to a continuous pre-buried bin for soil heavy metal remediation.
Background
The heavy metal is a typical environmental pollutant, the relative atomic mass of the heavy metal is 63.5-200.6, the density of the heavy metal is more than 5.0, the heavy metal comprises heavy elements with obvious biological toxicity such as mercury, cadmium, lead, chromium and metalloid arsenic, and general heavy metals with certain toxicity such as zinc, copper, cobalt, nickel and tin. Heavy metals in water exist in various forms, mainly including an ion exchange state, a metal salt combination state, an organic matter combination state, a residue state and the like, wherein the toxicity in the combination state and the exchange state is the largest, and the active toxicity in the residue state is the smallest, for example, methyl mercury is stronger than the toxicity in other forms of mercury. Heavy metal is not easily biodegradable, can be in the internal enrichment of organism, for example heavy metal Cd element is carcinogenic substance, can be detained for a long time after entering the human body, and half-life in the organism reaches 20 ~ 40 a. Mercury has high affinity with sulfhydryl group in protein in organism to generate thiolate, thereby inhibiting protein synthesis. Cd can cause reduction of bone mineral density, increase the occurrence probability of fracture, and excessive intake of Cd can cause a series of pathological changes of organs.
With the rapid development of industry and the wide use of pesticides and chemical fertilizers, the heavy metal pollution of soil is increasingly serious. In order to repair soil polluted by heavy metal ions, embedded parts are usually buried in the soil, but the existing embedded parts for soil repair generally do not have continuous adsorption action on the heavy metal ions, the adsorption capacity of the embedded parts for the heavy metal ions in the soil is gradually reduced along with the prolonging of the service life, so that the soil repair efficiency is reduced, and after the repair capacity of the embedded parts is reduced, new embedded parts need to be excavated again to replace the new embedded parts, so that the overall repair of the soil is influenced.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a continuous pre-buried bin for repairing heavy metal in soil, which can release a buffer solution to the surrounding soil through a plurality of diffusion whiskers in a normal state so as to effectively balance the pH value of the soil through the arrangement of bidirectional continuous spaces, wherein the buffer solution can extrude heavy metal ion adsorption powder adsorbing heavy metal ions from the end parts of the diffusion whiskers by extruding the heavy metal ion adsorption powder in the diffusion whiskers through the buffer solution when the buffer solution is released, and can deform the inner deformation end until the inner deformation end is communicated with the diffusion whiskers, so that new heavy metal ion adsorption powder can enter the diffusion whiskers, thereby effectively supplementing the heavy metal ion adsorption powder in the diffusion whiskers, continuously updating the heavy metal ion adsorption powder in the diffusion whiskers, and effectively ensuring the sustainable adsorption effect of the pre-buried bin on the heavy metal ions, thereby effectively improving the soil remediation efficiency.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
The utility model provides a pre-buried storehouse of continuation for soil heavy metal restoration, includes a plurality of storehouse body shells of evenly burying underground in heavy metal soil, storehouse body shell inboard is equipped with the internal core of storehouse, fixedly connected with even board between internal core of storehouse and the storehouse body shell, and form two-way continuous space between the external core of storehouse and the internal core of storehouse, even board upper end fixedly connected with charge pipe and the negative pressure pipe of breathing in of mutual symmetry, charge pipe and the negative pressure pipe of breathing in all communicate with each other with two-way continuous space, the internal core of storehouse is filled with heavy metal ion adsorption powder, the external end fixedly connected with a plurality of evenly distributed diffusion tendrils of storehouse, the external end of storehouse shell is cut a hole and is had a plurality of evenly distributed intercommunicating pores, a plurality of the intercommunicating pores communicate with each other with a plurality of diffusion tendrils respectively, notch department fixedly connected with two-way intercommunication awl that the intercommunicating pore is located the internal side of storehouse, two-way intercommunication awl, The communication hole is communicated with the diffusion beard, and buffer solution can be released to the surrounding soil through a plurality of diffusion beards under the normal state through the arrangement of the bidirectional continuous space, further effectively balance the pH value of the soil, and when the buffer solution is released, the buffer solution can exert a squeezing effect on the heavy metal ion adsorption powder adsorbing the heavy metal ions in the diffusion whiskers so as to extrude the heavy metal ion adsorption powder out of the end parts of the diffusion whiskers, on the other hand, under the negative pressure state, the inner deformation end deforms until the inner deformation end is communicated with the diffusion whisker, new heavy metal ion adsorption powder can enter the diffusion whisker, thereby effectively supply the heavy metal ion adsorption powder in the diffusion palpus for the heavy metal ion adsorption powder in the diffusion palpus can constantly be updated, effectively guarantees the adsorption to heavy metal ion of this pre-buried storehouse sustainability, and then effectively improves the remediation efficiency to soil.
Further, storehouse body inner core includes firm end and interior deformation end, go up firm end and interior deformation end structure as an organic whole, and go up firm end and interior deformation end and be located the upper and lower both sides of soil respectively, go up firm end and be convenient for maintain the holistic position of storehouse body inner core and intensity, interior deformation end is used for storing heavy metal ion adsorption powder, effectively guarantees the continuation in this pre-buried storehouse.
Furthermore, the upper stabilizing end is of a hard structure with a movable door, so that heavy metal ion adsorption powder can be added into the inner core of the bin body continuously and conveniently, the sustainability of the inner core on soil heavy metal remediation can be effectively maintained, the inner deformation end is made of elastic materials and can deform, buffer solution can be introduced into the bidirectional continuous space through the liquid filling pipe under a normal state, the buffer solution can flow into the soil through a plurality of diffusion cones, so that the pH value of the soil is effectively changed, the soil remediation effect is effectively ensured, meanwhile, air can be sucked outwards through the air suction negative pressure pipe, the bidirectional continuous space is in a negative pressure state, the inner deformation end deforms outwards until the bidirectional communication cone penetrates into the inner deformation end, so that the diffusion cones are communicated with the inner deformation end through the bidirectional communication cone, and at the moment, the heavy metal ion adsorption powder can enter into the diffusion cones through the bidirectional communication cone, thereby adsorb the heavy metal ion in the soil, dual remediation effect effectively improves the remediation effect to heavy metal ion in the soil to and adsorption efficiency.
Further, two-way intercommunication awl cross-section is isosceles triangle, and triangle-shaped's apex angle is deformation end just inside, when effectively guaranteeing that deformation end takes place to deform under negative pressure state, two-way intercommunication awl can be in the smooth interior deformation end of pricking into to make heavy metal ion adsorption powder can enter into the diffusion must smoothly, present the diffusion formula and distribute in this pre-buried storehouse periphery, and then effectively enlarge the adsorption effect to heavy metal ion in the soil.
Furthermore, the bidirectional communication cone comprises a cone tip and a cone body which are fixedly connected with each other, and the cone body is fixedly connected with the inner wall of the shell of the bin body.
Further, cone point and centrum surface all set gradually solid lubrication coating and polishing layer from inside to outside for two-way intercommunication awl surface is smooth, and frictional force is little, and then makes two-way intercommunication awl when puncturing the interior deformation end of deformation, and the pore wall that forms at interior deformation end surface is smooth, is difficult for producing anomalous damage, and then effectively avoids restoring the deformation back, and the pore stability of this formation is higher, is difficult for taking place the tearing condition under the stress condition, thereby makes interior deformation end difficult by the damage, the centrum is porous network structure, and the heavy metal ion adsorption powder and the buffer solution of being convenient for can pass two-way intercommunication awl and enter into in the diffusion must.
Furthermore, the diffusion must include the outer absorption covering, the outer pot head of outer absorption covering is equipped with interior continuation pipe.
Furthermore, the outer adsorption cladding layer is of a porous structure with two through ends, after the inner part of the outer adsorption cladding layer is filled with the heavy metal ion adsorption powder to adsorb heavy metal ions in soil, when buffer solution is filled into the inner part, the buffer solution can push the heavy metal ion adsorption powder adsorbed with the heavy metal ions outwards to enable the heavy metal ion adsorption powder to be discharged from the end part of the diffusion whisker, and meanwhile, the buffer solution can gradually permeate into the external soil from the gap on the surface of the outer adsorption cladding layer to balance the pH value of the soil, so that the soil is convenient to repair, when the buffer solution is in a negative pressure state, new heavy metal ion adsorption powder can enter the diffusion whisker to effectively supplement the heavy metal ion adsorption powder in the diffusion whisker, so that the heavy metal ion adsorption powder in the diffusion whisker can be continuously updated, the sustainable adsorption effect of the embedded bin on the heavy metal ions is effectively ensured, and the inner continuous tube is made of the heavy metal adsorption material with an uneven surface, effectively guide and adsorb heavy metal ions in the soil, thereby achieving the adsorption effect on the soil heavy metal.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) the scheme can release buffer solution to the surrounding soil through the arrangement of bidirectional continuous space, on one hand, under the normal state, through a plurality of diffusions, further effectively balance the pH value of the soil, and when the buffer solution is released, the buffer solution can exert a squeezing effect on the heavy metal ion adsorption powder adsorbing the heavy metal ions in the diffusion whiskers so as to extrude the heavy metal ion adsorption powder out of the end parts of the diffusion whiskers, on the other hand, under the negative pressure state, the inner deformation end deforms until the inner deformation end is communicated with the diffusion whisker, new heavy metal ion adsorption powder can enter the diffusion whisker, thereby effectively supply the heavy metal ion adsorption powder in the diffusion palpus for the heavy metal ion adsorption powder in the diffusion palpus can constantly be updated, effectively guarantees the adsorption to heavy metal ion of this pre-buried storehouse sustainability, and then effectively improves the remediation efficiency to soil.
(2) The storehouse body inner core includes firm end and interior deformation end, goes up firm end and interior deformation end structure as an organic whole, and goes up firm end and interior deformation end and lie in the upper and lower both sides of soil respectively, goes up firm end and is convenient for maintain the holistic position of storehouse body inner core and intensity, and interior deformation end is used for storing heavy metal ion adsorption powder, effectively guarantees the continuation in this pre-buried storehouse.
(3) The upper stabilizing end is of a hard structure with a movable door, so that heavy metal ion adsorption powder can be conveniently and continuously added into the inner core of the bin body, the sustainability of the inner core on soil heavy metal remediation can be effectively maintained, the inner deformation end is made of elastic materials and can be deformed, buffer solution can be introduced into the bidirectional continuous space through the liquid filling pipe under a normal state, the buffer solution can flow into the soil through a plurality of diffusion cones, the pH value of the soil is effectively changed, the soil remediation effect is effectively ensured, meanwhile, air can be sucked outwards through the air suction negative pressure pipe, the bidirectional continuous space is in a negative pressure state, the inner deformation end is deformed outwards until the bidirectional communication cone penetrates into the inner deformation end, the diffusion cones are communicated with the inner deformation end through the bidirectional communication cones, and at the moment, the heavy metal ion adsorption powder can enter into the diffusion cones through the bidirectional communication cones, thereby adsorb the heavy metal ion in the soil, dual remediation effect effectively improves the remediation effect to heavy metal ion in the soil to and adsorption efficiency.
(4) The cross-section of the bidirectional communication cone is an isosceles triangle, and the vertex angle of the triangle is just at the inner deformation end, so that when the inner deformation end deforms under the negative pressure state, the bidirectional communication cone can smoothly penetrate into the inner deformation end, so that the heavy metal ion adsorption powder can smoothly enter into the diffusion beard, the diffusion type distribution is presented at the periphery of the pre-buried bin, and the adsorption effect of the heavy metal ions in the soil is effectively enlarged.
(5) The bidirectional communication cone comprises a cone tip and a cone body which are fixedly connected with each other, and the cone body is fixedly connected with the inner wall of the bin body shell.
(6) Awl point and centrum surface all are provided with solid lubrication coating and polishing layer from inside to outside in proper order, make two-way intercommunication awl surface smooth, and frictional force is little, and then make two-way intercommunication awl when puncturing the interior deformation end of deformation, the pore wall that forms including deformation end surface is smooth, be difficult for producing anomalous damage, and then effectively avoid restoring the deformation back, the hole stability of this formation is higher, be difficult for taking place the tearing condition under the stress condition, thereby make interior deformation end difficult by the damage, the centrum is porous network structure, it must in to be convenient for heavy metal ion adsorption powder and buffer solution can pass two-way intercommunication awl entering diffusion.
(7) The diffusion device comprises an outer adsorption cladding, and an inner continuous tube is sleeved at the outer end of the outer adsorption cladding.
(8) The outer adsorption cladding is of a porous structure with two through ends, after the inner part of the outer adsorption cladding is filled with the heavy metal ion adsorption powder to adsorb heavy metal ions in soil, when buffer solution is filled into the inner part, the buffer solution can push the heavy metal ion adsorption powder adsorbed with the heavy metal ions outwards to enable the heavy metal ion adsorption powder to be discharged from the end part of the diffusion whisker, meanwhile, the buffer solution can gradually permeate into the external soil from the gap on the surface of the outer adsorption cladding to balance the pH value of the soil, so that the soil is convenient to repair, when the buffer solution is in a negative pressure state, new heavy metal ion adsorption powder can enter the diffusion whisker to effectively supplement the heavy metal ion adsorption powder in the diffusion whisker, so that the heavy metal ion adsorption powder in the diffusion whisker can be continuously updated, the sustainable adsorption effect on the heavy metal ions in the embedded bin is effectively ensured, and the inner continuous tube is made of the heavy metal adsorption material with uneven surface, effectively guide and adsorb heavy metal ions in the soil, thereby achieving the adsorption effect on the soil heavy metal.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic structural diagram of the front side of the present invention in a normal state;
FIG. 3 is a schematic structural diagram of the front side of the present invention in a negative pressure state;
FIG. 4 is a schematic view of the structure at A in FIG. 3;
FIG. 5 is a schematic view of a diffusion whisker of the invention;
FIG. 6 is a schematic structural diagram of the bi-directional communication cone of the present invention;
the reference numbers in the figures illustrate:
1, 2, 21 upper stable end, 22 inner deformation end, 3 connecting plates, 41 liquid charging pipe, 42 air suction negative pressure pipe, 5 diffusion beard, 51 outer adsorption cladding, 52 inner continuous pipe, 6 heavy metal ion adsorption powder, 7 communicating hole, 8 two-way communication cone, 81 cone tip and 82 cone body.
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. 1-2, a persistent pre-buried bin for soil heavy metal restoration comprises a plurality of bin body shells 1 uniformly buried in heavy metal soil, a bin body inner core 2 is arranged on the inner side of the bin body shell 1, a connecting plate 3 is fixedly connected between the bin body inner core 2 and the bin body shell 1, a bidirectional continuous space is formed between the bin body shell 1 and the bin body inner core 2, a liquid filling pipe 41 and a suction negative pressure pipe 42 which are mutually symmetrical are fixedly connected to the upper end of the connecting plate 3, the liquid filling pipe 41 and the suction negative pressure pipe 42 are both communicated with the bidirectional continuous space, heavy metal ion adsorption powder 6 is filled in the bin body inner core 2, the heavy metal ion adsorption powder 6 is a metasorb HMRP heavy metal adsorbent, and the metasorb HMRP heavy metal adsorbent is a free-flowing powder, and can effectively reduce the following various pollutants of lead, uranium, arsenic III, arsenic V, copper, mercury, zinc, selenium, chromium vi, cadmium and cadmium, Antimony and the like, and the outer end of the bin body shell 1 is fixedly connected with a plurality of uniformly distributed diffusion whiskers 5.
Referring to fig. 4, a plurality of evenly distributed communication holes 7 are drilled at the outer end of the bin body shell 1, the plurality of communication holes 7 are respectively communicated with the plurality of diffusion whiskers 5, a bidirectional communication cone 8 is fixedly connected at the notch of the communication hole 7 at the inner side of the bin body shell 1, and the bidirectional communication cone 8, the communication holes 7 and the diffusion whiskers 5 are communicated.
Referring to fig. 3-4, the bin body inner core 2 includes an upper stabilizing end 21 and an inner deforming end 22, the upper stabilizing end 21 and the inner deforming end 22 are integrated, and the upper stabilizing end 21 and the inner deforming end 22 are respectively located at the upper side and the lower side of the soil, the upper stabilizing end 21 is convenient for maintaining the position and the strength of the whole bin body inner core 2, the inner deforming end 22 is used for storing heavy metal ion adsorption powder 6, so as to effectively ensure the continuity of the embedded bin, the upper stabilizing end 21 is a hard structure with a movable door, so as to be convenient for continuously adding supplementary heavy metal ion adsorption powder 6 into the bin body inner core 2, so as to effectively maintain the sustainability of the bin body for repairing heavy metal in the soil, the inner deforming end 22 is made of an elastic material, so that the bin body can be deformed, under a normal state, a buffer solution can be introduced into a bidirectional continuous space through a liquid filling pipe 41, and the buffer solution can flow into the soil through a plurality of diffusion whiskers 5, thereby effectively change the pH valve of soil, effectively guarantee the prosthetic effect of soil, simultaneously can outwards bleed through the negative pressure pipe 42 of breathing in, make the state that presents the negative pressure in the two-way continuous space, make interior deformation end 22 outwards take place deformation, in the deformation end 22 is gone into until two-way intercommunication awl 8 thorn, make the diffusion must 5 communicate with each other with interior deformation end 22 through two- way intercommunication awl 8, 6 accessible two-way intercommunication awl 8 of heavy metal ion adsorption powder enter into the diffusion must 5 this moment in, thereby adsorb the heavy metal ion in the soil, dual remediation effect, effectively improve the repair effect to heavy metal ion in the soil, and adsorption efficiency.
Referring to fig. 6, the cross section of the two-way communication cone 8 is an isosceles triangle, and the vertex angle of the triangle is directed toward the inner deformation end 22, so as to effectively ensure that when the inner deformation end 22 deforms in a negative pressure state, the two-way communication cone 8 can smoothly penetrate into the inner deformation end 22, so that the heavy metal ion adsorption powder 6 can smoothly enter the diffusion whisker 5 and is diffusively distributed on the periphery of the embedded bin, thereby effectively expanding the adsorption effect on heavy metal ions in soil, the two-way communication cone 8 comprises a cone tip 81 and a cone 82 which are fixedly connected with each other, the cone 82 is fixedly connected with the inner wall of the bin body shell 1, the surfaces of the cone tip 81 and the cone 82 are sequentially provided with a solid lubricating coating and a polishing layer from inside to outside, so that the surface of the two-way communication cone 8 is smooth, the friction force is small, and further, when the two-way communication cone 8 punctures the deformed inner deformation end 22, the hole wall formed on the surface of the inner deformation end 22 is smooth, difficult anomalous damage that produces, and then effectively avoid after recovering deformation, the hole stability of this formation is higher, is difficult for taking place the condition of tearing under the stress state to make interior deformation end 22 difficult damaged, centrum 82 is porous network structure, and the heavy metal ion adsorption powder 6 and the buffer solution of being convenient for can pass two-way intercommunication awl 8 and enter into in the diffusion must 5.
Referring to fig. 5, the diffusing whiskers 5 include an outer absorbing coating 51, an inner sustaining tube 52 is sleeved at an outer end of the outer absorbing coating 51, the outer absorbing coating 51 has a porous structure with two through ends, after the outer absorbing coating 51 is filled with the heavy metal ion absorbing powder 6 to absorb heavy metal ions in soil, and a buffer solution is filled inside, the buffer solution pushes the heavy metal ion absorbing powder 6 having absorbed the heavy metal ions outwards to discharge part of the heavy metal ion absorbing powder from an end of the diffusing whiskers 5, and simultaneously the buffer solution gradually permeates into the external soil from a gap on the surface of the outer absorbing coating 51 to balance the soil acidity and alkalinity, so as to facilitate soil remediation, when the buffer solution is in a negative pressure state, new heavy metal ion absorbing powder 6 enters the diffusing whiskers 5, so as to effectively supplement the heavy metal ion absorbing powder 6 in the diffusing whiskers 5, so that the heavy metal ion absorbing powder 6 in the diffusing whiskers 5 can be continuously updated, effectively guarantee the adsorption effect to heavy metal ion of this pre-buried storehouse sustainability, interior continuation pipe 52 is made for surperficial unevenness's heavy metal adsorption material, effectively guides and adsorbs the heavy metal ion in the soil, and then reaches the adsorption effect to soil heavy metal.
Through the arrangement of the bidirectional continuous space, on one hand, please refer to fig. 2, buffer solution can be released to the surrounding soil through the plurality of diffusion whiskers 5 under a normal state, so as to effectively balance the ph value of the soil, and when the buffer solution is released, the buffer solution can form an extrusion effect on the heavy metal ion adsorption powder 6 adsorbing the heavy metal ions in the diffusion whiskers 5, so that the heavy metal ion adsorption powder 6 is extruded out of the end portion of the diffusion whiskers 5, on the other hand, referring to fig. 3, under a negative pressure state, the inner deformation end 22 deforms until the inner deformation end 22 is communicated with the diffusion whiskers 5, new heavy metal ion adsorption powder 6 can enter the diffusion whiskers 5, so as to effectively supplement the heavy metal ion adsorption powder 6 in the diffusion whiskers 5, so that the heavy metal ion adsorption powder 6 in the diffusion whiskers 5 can be continuously updated, and the sustainable adsorption effect on the heavy metal ions in the pre-buried bin can be effectively ensured, thereby effectively improving the soil remediation efficiency.
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 (4)
1. The utility model provides a pre-buried storehouse of continuation for soil heavy metal restoration, includes a plurality of storehouse body shell (1) of evenly burying underground in heavy metal soil, its characterized in that: the bin body inner core (2) is arranged on the inner side of the bin body outer shell (1), a connecting plate (3) is fixedly connected between the bin body inner core (2) and the bin body outer shell (1), a bidirectional continuous space is formed between the bin body outer shell (1) and the bin body inner core (2), a liquid filling pipe (41) and an air suction negative pressure pipe (42) which are symmetrical to each other are fixedly connected to the upper end of the connecting plate (3), the liquid filling pipe (41) and the air suction negative pressure pipe (42) are communicated with the bidirectional continuous space, heavy metal ion adsorption powder (6) is filled in the bin body inner core (2), a plurality of uniformly distributed diffusion whiskers (5) are fixedly connected to the outer end of the bin body outer shell (1), a plurality of uniformly distributed communication holes (7) are drilled in the outer end of the bin body outer shell (1), the plurality of communication holes (7) are respectively communicated with the plurality of diffusion whiskers (5), and a bidirectional communication cone (8) is fixedly connected to a notch of each communication hole (7) which is positioned on the inner side of the bin body outer shell (1), the bidirectional communication cone (8) and the communication hole (7) are communicated with the diffusion beard (5);
the bin body inner core (2) comprises an upper stabilizing end (21) and an inner deformation end (22), the upper stabilizing end (21) and the inner deformation end (22) are of an integral structure, and the upper stabilizing end (21) and the inner deformation end (22) are respectively positioned at the upper side and the lower side of soil; the upper stabilizing end (21) is of a hard structure with a movable door, and the inner deformation end (22) is made of an elastic material;
the diffusion beard (5) comprises an outer adsorption cladding (51), and an inner continuous tube (52) is sleeved at the outer end of the outer adsorption cladding (51); the outer adsorption cladding (51) is of a porous structure with two through ends, and the inner continuous tube (52) is made of a heavy metal adsorption material with an uneven surface.
2. The continuous embedded bin for soil heavy metal restoration according to claim 1, characterized in that: the cross section of the two-way communication cone (8) is an isosceles triangle, and the vertex angle of the triangle is just opposite to the inner deformation end (22).
3. The continuous embedded bin for soil heavy metal restoration according to claim 1, characterized in that: the bidirectional communication cone (8) comprises a cone tip (81) and a cone body (82) which are fixedly connected with each other, and the cone body (82) is fixedly connected with the inner wall of the bin body shell (1).
4. The continuous embedded bin for soil heavy metal restoration according to claim 3, characterized in that: the surface of the cone tip (81) and the surface of the cone body (82) are sequentially provided with a solid lubricating coating and a polishing layer from inside to outside, and the cone body (82) is of a porous net structure.
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| CN112170473A (en) * | 2020-09-04 | 2021-01-05 | 刘玉福 | Cold diffusion repairing rod based on organic contaminated soil |
| CN112122324B (en) * | 2020-09-14 | 2022-03-15 | 湖南绿楷节能环保科技有限公司 | Bidirectional remediation method for heavy metal ion contaminated soil |
| CN113056980B (en) * | 2021-01-05 | 2022-05-06 | 大安市中科佰澳格霖农业发展有限公司 | Replacement type rapid repair method for saline-alkali soil |
| CN113441543B (en) * | 2021-06-29 | 2022-09-23 | 青海九零六工程勘察设计院有限责任公司 | Heavy metal contaminated mine soil remediation device |
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