CN111992574A - Soil remediation method based on organic pollutants - Google Patents

Soil remediation method based on organic pollutants Download PDF

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Publication number
CN111992574A
CN111992574A CN202010845124.5A CN202010845124A CN111992574A CN 111992574 A CN111992574 A CN 111992574A CN 202010845124 A CN202010845124 A CN 202010845124A CN 111992574 A CN111992574 A CN 111992574A
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soil
water
repairing
organic pollutants
repair
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张德洪
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Chengdu Yongshengchang Cleaning Service Co ltd
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Chengdu Yongshengchang Cleaning Service Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09CRECLAMATION OF CONTAMINATED SOIL
    • B09C1/00Reclamation of contaminated soil
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01BSOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B77/00Machines for lifting and treating soil
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C19/00Other disintegrating devices or methods
    • B02C19/16Mills provided with vibrators
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09CRECLAMATION OF CONTAMINATED SOIL
    • B09C1/00Reclamation of contaminated soil
    • B09C1/10Reclamation of contaminated soil microbiologically, biologically or by using enzymes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09CRECLAMATION OF CONTAMINATED SOIL
    • B09C2101/00In situ

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Soil Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biotechnology (AREA)
  • Biomedical Technology (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Microbiology (AREA)
  • Molecular Biology (AREA)
  • Mycology (AREA)
  • Mechanical Engineering (AREA)
  • Environmental Sciences (AREA)
  • Food Science & Technology (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

The invention discloses a soil restoration method based on organic pollutants, which belongs to the technical field of soil restoration, can creatively introduce a restoration bin to bury on polluted soil, then utilizes a restoration sinking ball processed in advance, is tied in the restoration bin through an elastic stay wire to automatically sink to the deep soil, utilizes the soil to extrude a dynamic pressure needle on the restoration sinking ball, forces the water in a water loss block to release through the conduction of a transmission net, utilizes the characteristic that a water decomposition block decomposes a large amount of gas in water, crushes the soil through the gas impact force and the vibration of the dynamic pressure needle, can improve the soil caking phenomenon, simultaneously can continuously sink, unfold and restore, in addition, generates heat to decompose a thermal decomposition ring when the water decomposition block is decomposed, releases oxygen and drives a biological restoration capsule to be discharged into the soil together to increase the oxygen content of the soil, the degrading bacteria in the bioremediation capsule carry out fixed-point remediation, and the remediation effect of the polluted soil is obviously improved.

Description

Soil remediation method based on organic pollutants
Technical Field
The invention relates to the technical field of soil remediation, in particular to a soil remediation method based on organic pollutants.
Background
The economic development mode of China is extensive overall, the industrial structure and layout are still unreasonable, the total pollutant emission amount is high, and the soil is used as the final receptor of most pollutants, so the environmental quality of the soil is obviously influenced. Due to the random discharge of industrial three wastes and the excessive use of pesticides and fertilizers, organic pollutants are widely distributed in the environment and are enriched in the soil environment, and finally the health of human beings is harmed through a biological enrichment way. The soil pollution has concealment, hysteresis, accumulation, irreversibility and the like, so that the polluted soil is difficult to repair or the repair cost is high.
The pollutants in the soil are from a wide range of sources and are of various types, and can be generally divided into inorganic pollutants and organic pollutants. The organic pollutants are various, including volatile organic pollutants such as benzene, toluene, xylene, ethylbenzene, trichloroethylene and the like, and semi-volatile organic pollutants such as polycyclic aromatic hydrocarbons, polychlorinated biphenyl, organic pesticides and the like. Organic pollutants in soil can directly destroy the normal functions of soil, and can be absorbed by plants and accumulated in food chains, thereby further harming human health. Soil organic pollutants may also have an influence on the metabolism and genetic characteristics of soil animals and the growth and development of plants, and destroy the ecological environment, thereby indirectly harming human health.
At present, the soil organic pollution remediation technology comprises a chemical oxidation technology, a thermal desorption technology, a cement kiln co-processing technology, a biological reactor technology, a gas phase extraction technology and the like, wherein the thermal desorption and cement kiln co-processing technology has high energy consumption and expensive remediation cost, the chemical oxidation technology needs to be added with medicines for multiple times, the remediation is difficult to complete, and the requirement on soil properties is high; the vapor extraction only aims at volatile organic matters, has high requirement on soil permeability and long repair period. Among various repair technologies, only microbial repair and phytoremediation are the most promising green repair at present, and have the advantage of environmental friendliness. The microbial remediation mainly utilizes indigenous microorganisms in soil or supplements domesticated efficient microorganisms to a polluted environment, and under an optimized environmental condition, pollutants are decomposed and the polluted soil is remedied at an accelerated speed, but the microbial remediation has a single effect and is difficult to control, and the efficient environmental protection advantage of the microorganisms cannot be exerted.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a soil remediation method based on organic pollutants, which can realize the innovative introduction of a remediation bin to bury the remediation bin on the polluted soil, then utilizes a pre-processed remediation sinking ball to be tied in the remediation bin through an elastic stay wire to automatically subside to the deep soil, utilizes the extrusion of the soil on a dynamic pressure needle on the remediation sinking ball to force the water in a water loss block to be released through the conduction of a force transmission intranet, then utilizes the characteristic that a water decomposition block decomposes a large amount of gas in the presence of water to crush the soil through the gas impact force and the vibration of the dynamic pressure needle, not only can improve the soil caking phenomenon, but also can continuously subside, unfold and repair, in addition, the water decomposition block generates heat to cause the decomposition of a thermal decomposition ring when decomposing, releases oxygen and drives a biological remediation capsule to be discharged into the soil together to increase the oxygen content of the soil, the degrading bacteria in the bioremediation capsule carry out fixed-point remediation, thereby realizing the synchronous operation of sedimentation and remediation actions and obviously improving the remediation effect of the polluted soil.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A soil remediation method based on organic pollutants comprises the following steps:
s1, excavating pre-buried pits with proper intervals on the polluted soil, and burying a repairing bin into the pre-buried pits;
s2, fastening the repair sinking ball processed in advance in the repair bin through an elastic stay wire, and placing the repair sinking ball in a sinking hole below the repair bin;
s3, triggering the repairing action by the repairing sinking ball, slowly sinking to the lower part of the soil, and repairing the soil in the process of sinking;
s4, periodically sampling soil for pollution detection, and completing remediation until the concentration of the target pollutant is reduced to a remediation target value;
and S5, timely recovering the repairing sinking ball after the repairing sinking ball is consumed, reprocessing and recycling until the repairing is finished, and recovering the repairing bin, the elastic stay wire and the repairing sinking ball.
Furthermore, the embedding density of the repair bin is not less than 1/10 m2The number of the settlement holes below the repair bin is multiple, the appropriate embedding density can control the repair cost, the repair effect can be guaranteed, and the multiple settlement holes can meet the requirement of repairing the sinking balls from different positionsThe local subsidence is repaired, and the effect reduction caused by the superposition of repair routes when the repair period is longer is avoided.
Further, repair the heavy ball including adsorbing the watchcase and seting up in the water supply chamber that adsorbs watchcase center department, it is connected with a plurality of evenly distributed's the piece that loses water to adsorb watchcase surface inlay, it is connected with water guide fiber pole in the piece to lose water, and water guide fiber pole runs through and adsorbs the watchcase and extend to the water supply intracavity, and the piece that loses water is used for the water of temporary storage part, then releases the infiltration in soil under the squeezing action, compares in traditional watering mode, can more evenly go deep into, and for the self infiltration of water, can improve infiltration efficiency.
Further, adsorb watchcase surface and still seted up a plurality of evenly distributed's even outer hole, and even outer hole and the crisscross distribution of desiccation piece, it has the tuck to move to inlay in the activity of even outer hole, it has the biography power intranet to inlay in the adsorption watchcase, and passes power the intranet and run through the setting of desiccation piece, move the tuck and pass the node of biography power intranet and be connected, the tuck not only can transmit soil to its squeezing action, then borrow by passing power intranet extrusion desiccation piece, force it to release absorptive moisture.
Furthermore, link the downthehole node that corresponds biography power intranet of outer is connected with the water decomposition piece, water decomposition piece edge department is connected with inlays in the pyrolysis ring that adsorbs the watchcase, the moisture part that the dehydration piece released directly permeates to in the soil, the part flows to water decomposition piece department through passing power intranet, rather than reacting and force it to decompose a large amount of gas, then compel the acupressure needle to continue vibrations in linking the outer downthehole, carry out the breakage to the soil of knot and refine, and the gaseous impact that the cooperation produced, show and improve the permeability and the porosity inside the soil, and the water decomposition piece can produce the heat when decomposing, the decomposition of pyrolysis ring can be accelerated to this heat, the oxygen that the pyrolysis ring decomposes the release can increase the dissolved oxygen volume of soil, thereby improve biological living environment in the soil.
Further, it has a plurality of bioremediation capsules to inlay in the thermolysis ring, the bioremediation capsule is including hydrolysis clothing and the bioremediation liquid of filling in hydrolysis clothing, and the thermolysis ring can carry the bioremediation capsule and discharge simultaneously to soil in decomposing release oxygen, can realize following the action of sinking of restoreing heavy ball, and the bioremediation capsule that evenly releases is developed and is restoreed soil, can improve the restoration effect of soil indirectly.
Furthermore, the hydrolysis coating is made of water-soluble materials, the bioremediation liquid is a mixture of degradation bacteria and a nutrient solution, the hydrolysis coating can be dissolved in water to release the internal bioremediation liquid, the degradation bacteria can efficiently decompose organic pollutants by virtue of high metabolic capacity and multifunctional physiological characteristics of the degradation bacteria, the degradation bacteria can efficiently metabolize by matching with the nutrient solution and oxygen, and the soil does not provide nutrient substances to improve physicochemical properties.
Further, the degrading bacteria belong to the genus Sphingomonas, the nutrient solution is a mixture of urea, potassium dihydrogen phosphate and water, and the mass ratio of C to N to P is 100 to 10 to 1.
Furthermore, the water decomposition block is made of effervescent disintegrant, and the thermal decomposition ring is made of solid material which can decompose oxygen by heating.
Furthermore, the adsorption watchcase is made of a solid adsorption material, the water loss block is made of an elastic water absorption material, the adsorption watchcase can automatically capture pollutants in soil by virtue of physical adsorption, and the adsorption watchcase can be desorbed and reused after being recovered.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) the scheme can realize that the restoring bin is innovatively introduced to bury on the polluted soil, then the restoring sinking ball which is processed in advance is utilized, the restoring bin is fastened by the elastic stay wire to automatically sink to the deep part of the soil, the soil extrudes the dynamic pressure needle on the restoring sinking ball, the moisture in the water loss block is forced to be released through the conduction of the transmission inner net, then the water decomposition block is utilized to decompose a large amount of gas in water, the soil is crushed through the gas impact force and the vibration of the dynamic pressure needle, not only can the soil caking phenomenon be improved, but also the soil can be continuously sunk, unfolded and restored, in addition, the water decomposition block generates heat to cause the decomposition of a pyrolysis ring when being decomposed, oxygen is released and the bioremediation capsule is driven to be discharged into the soil together, the oxygen content of the soil is increased, the degrading bacteria in the bioremediation capsule are restored at fixed points, and the, the remediation effect of the polluted soil is obviously improved.
(2) The embedding density of the repair bin is not less than 1/10 m2The settlement holes below the repair bin are multiple in number, the repair cost can be controlled by proper burying density, the repair effect can be guaranteed, the multiple settlement holes can meet the requirement that the repair sinking balls sink from different places to be repaired, and the repair path is prevented from being overlapped when the repair period is long, so that the effect is reduced.
(3) Repairing heavy ball including adsorbing the watchcase and seting up in the water supply chamber that adsorbs watchcase center department, adsorb watchcase surface and inlay the piece that loses water that is connected with a plurality of evenly distributed, it is connected with water guide fiber pole to lose water the piece in, and water guide fiber pole runs through and adsorbs the watchcase and extend to the water supply intracavity, it is used for the water of temporary storage part to lose water the piece, then release the infiltration in soil under the squeezing action, compare in traditional watering mode, can more evenly go deep, and for the self infiltration of water, can improve the infiltration efficiency.
(4) Adsorb watchcase surface and still seted up a plurality of evenly distributed's even outer hole, and even outer hole and the crisscross distribution of desiccation piece, even the activity of outer downthehole is inlayed and is had the dynamic pressure needle, it has the biography power intranet to inlay in the absorption watchcase, and passes the power intranet and run through the setting of desiccation piece, moves the pressure needle and is connected with the node that passes the power intranet, and the dynamic pressure needle not only can transmit soil to its squeezing action, then borrows by passing power intranet extrusion desiccation piece, forces it to release absorptive moisture.
(5) Even the downthehole node that corresponds biography power intranet of outer hole is connected with the water decomposition piece, water decomposition piece edge department is connected with inlays the pyrolysis ring in adsorbing the watchcase, the moisture part that the dehydration piece released directly permeates to in the soil, the part flows to water decomposition piece department through passing power intranet, rather than reacting and force its a large amount of gas that decomposes, then compel the acupressure probe to be in even outer downthehole continuous vibrations, the soil of knot piece is broken and is refined, and the gaseous impact of cooperation production, show permeability and the porosity that improves soil inside, and the water decomposition piece can produce the heat when decomposing, the decomposition of pyrolysis ring can be accelerated to this heat, the oxygen that the pyrolysis ring decomposes the release can increase the oxygen content of soil and dissolve, thereby improve biological living environment in the soil.
(6) The thermal decomposition ring is internally embedded with a plurality of bioremediation capsules, the bioremediation capsules comprise hydrolysis coats and bioremediation liquid filled in the hydrolysis coats, the thermal decomposition ring can carry the bioremediation capsules to be discharged into soil simultaneously when decomposing and releasing oxygen, the sinking action of repairing sinking balls can be realized, the bioremediation capsules are uniformly released to expand and repair the soil, and the repairing effect of the soil can be indirectly improved.
(7) The hydrolysis coating is made of water-soluble materials, the bioremediation liquid is a mixture of degradation bacteria and nutrient solution, the hydrolysis coating can be dissolved in water to release the internal bioremediation liquid, the degradation bacteria can efficiently decompose organic pollutants by virtue of high metabolic capacity and multifunctional physiological characteristics of the degradation bacteria, the degradation bacteria can efficiently metabolize by being matched with the nutrient solution and oxygen, and the soil does not provide nutrient substances to improve physicochemical properties.
(8) The adsorption watchcase adopts solid adsorption material to make, and the dehydration piece adopts elasticity water absorption material to make, and the adsorption watchcase relies on the physical adsorption effect can independently catch the pollutant in the soil to can carry out the desorption after retrieving and put into use again.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a repair sinker according to the present invention;
FIG. 3 is a schematic view of the structure at A in FIG. 2;
fig. 4 is a schematic structural view of the bioremediation capsule of the present invention.
The reference numbers in the figures illustrate:
1 repair bin, 2 elastic stay wires, 3 repair sinking balls, 31 adsorption shell, 32 water loss block, 33 water supply cavity, 4 water guide fiber rod, 5 dynamic pressing pin, 6 force transmission inner net, 7 outer hole, 8 water decomposition block, 9 biological repair capsule, 91 hydrolysis coat, 92 biological repair liquid and 10 thermal decomposition ring.
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, a soil remediation method based on organic pollutants includes the following steps:
s1, excavating pre-buried pits with proper intervals on the polluted soil, and burying the repairing bin 1 into the pre-buried pits;
s2, fastening the repair sinking ball 3 which is processed in advance in the repair bin 1 through the elastic stay wire 2, and placing the repair sinking ball in a sinking hole below the repair bin 1;
s3, triggering the repairing action by the repairing sinking ball 3, slowly sinking to the lower part of the soil, and repairing the soil in the process of sinking;
s4, periodically sampling soil for pollution detection, and completing remediation until the concentration of the target pollutant is reduced to a remediation target value;
and S5, timely recovering the repairing sinking ball 3 after the repairing sinking ball is consumed, reprocessing and recycling until the repairing is finished, and recovering the repairing bin 1, the elastic stay wire 2 and the repairing sinking ball 3.
The embedding density of the repairing bin 1 is not less than 1/10 m2The settlement holes below the repair bin 1 are multiple in number, the repair cost can be controlled by proper burying density, the repair effect can be guaranteed, the multiple settlement holes can meet the requirement that the repair sinking balls 3 sink from different places to be repaired, and the repair route is prevented from being overlapped to cause the effect to be reduced when the repair period is long.
Referring to fig. 2, the restoring sinker 3 includes an absorbing casing 31 and a water supply cavity 33 formed in the center of the absorbing casing 31, a plurality of water loss blocks 32 are embedded and connected to the outer surface of the absorbing casing 31, the water loss blocks 32 are connected to the water guide fiber rods 4, the water guide fiber rods 4 penetrate the absorbing casing 31 and extend into the water supply cavity 33, and the water loss blocks 32 are used for temporarily storing partial water and then release and penetrate into soil under the squeezing action.
The adsorption shell 31 is made of solid adsorption material, such as modified bentonite and diatomite, the water loss block 32 is made of elastic water absorption material, such as sponge, the adsorption shell 31 can automatically capture pollutants in soil by virtue of physical adsorption, and can be desorbed after being recovered for reuse.
Referring to fig. 3, the outer surface of the adsorption case 31 is further provided with a plurality of outer holes 7 which are uniformly distributed, the outer holes 7 and the water loss blocks 32 are distributed in a staggered manner, movable pressing pins 5 are movably embedded in the outer holes 7, a force transmission inner net 6 is embedded in the adsorption case 31, the force transmission inner net 6 penetrates through the water loss blocks 32, the movable pressing pins 5 are connected with the nodes of the force transmission inner net 6, the dynamic pressing pins 5 can transmit the extrusion action of soil to the force transmission inner net, and then the force transmission inner net 6 is used for extruding the water loss blocks 32 to force the water loss blocks to release absorbed water.
Link to be connected with water decomposition piece 8 in outer hole 7 corresponding node of biography power intranet 6, water decomposition piece 8 edge is connected with inlays thermal decomposition ring 10 in adsorbing watchcase 31, the moisture part that dehydration piece 32 released directly permeates to in the soil, the part flows to water decomposition piece 8 department through passing power intranet 6, react with it and force it to decompose a large amount of gas, then compel acupressure needle 5 to continue vibrations in linking outer hole 7, carry out the breakage to the soil of caking and refine, and the gaseous impact of cooperation production, show the permeability and the porosity of improving soil inside, and water decomposition piece 8 can produce the heat when decomposing, this heat can accelerate the decomposition of thermal decomposition ring 10, the oxygen that thermal decomposition ring 10 decomposed the release can increase the dissolved oxygen volume of soil, thereby improve biological living environment in the soil.
The water-splitting block 8 is made of an effervescent disintegrant and the thermal-splitting ring 10 is made of a solid material that splits off oxygen by heating, such as potassium permanganate.
Referring to fig. 4, a plurality of bioremediation capsules 9 are embedded in the thermal decomposition ring 10, each bioremediation capsule 9 includes a hydrolysis coat 91 and a bioremediation liquid 92 filled in the hydrolysis coat 91, the thermal decomposition ring 10 decomposes and releases oxygen and simultaneously carries the bioremediation capsules 9 to be discharged into soil, so that the thermal decomposition ring can follow the sinking action of the remediation sinking ball 3, the bioremediation capsules 9 are uniformly released to develop and restore the soil, and the soil restoration effect can be indirectly improved.
The hydrolytic clothing 91 is made of water-soluble materials, the bioremediation liquid 92 is a mixture of degradation bacteria and nutrient solution, the hydrolytic clothing 91 can be dissolved in water to release the internal bioremediation liquid 92, the degradation bacteria can efficiently decompose organic pollutants by virtue of high metabolic capability and multifunctional physiological characteristics of the degradation bacteria, the degradation bacteria are matched with the nutrient solution and oxygen to carry out efficient metabolism, and the soil is not provided with nutrient substances to improve physicochemical properties.
The degrading bacteria belong to the genus Sphingomonas, the nutrient solution is a mixture of urea, potassium dihydrogen phosphate and water, and the mass ratio of C to N to P is 100 to 10 to 1.
The invention can realize the innovative introduction of a repairing bin 1 to bury on the polluted soil, then utilize a repairing sinking ball 3 which is processed in advance, and is fastened in the repairing bin 1 through an elastic stay wire 2 to automatically sink to the deep part of the soil, utilize the extrusion of the dynamic pressure needle 5 on the repairing sinking ball 3 by the soil, force the moisture in a water loss block 32 to release through the conduction of a force transmission inner net 6, then utilize the characteristic that a water decomposition block 8 decomposes a large amount of gas in water, crush the soil through the gas impact force and the vibration of the dynamic pressure needle 5, not only can improve the caking phenomenon of the soil, but also can sink, unfold and repair, in addition, the heat generated when the water decomposition block 8 decomposes causes the decomposition of a thermal decomposition ring 10, release oxygen and drive a bioremediation capsule 9 to be discharged into the soil together, increase the oxygen content of the soil, degrade bacteria in the bioremediation capsule 9 carry out fixed-point repair, and realize the synchronous proceeding of the settling and repairing, the remediation effect of the polluted soil is obviously improved.
The above are merely preferred embodiments 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. A soil remediation method based on organic pollutants is characterized in that: the method comprises the following steps:
s1, excavating pre-buried pits with proper intervals on the polluted soil, and burying a repairing bin (1) into the pre-buried pits;
s2, fastening the repair sinking ball (3) which is processed in advance in the repair bin (1) through the elastic pull wire (2), and placing the repair sinking ball in a sinking hole below the repair bin (1);
s3, triggering a repairing action by the repairing sinking ball (3), slowly sinking to the lower part of the soil, and repairing the soil in the sinking process;
s4, periodically sampling soil for pollution detection, and completing remediation until the concentration of the target pollutant is reduced to a remediation target value;
and S5, recovering the repairing sinking ball (3) in time after the repairing sinking ball (3) is consumed, and reprocessing and recycling until the repairing is completed, and recovering the repairing bin (1), the elastic stay wire (2) and the repairing sinking ball (3).
2. The method for remediating soil based on organic pollutants as claimed in claim 1, wherein: the embedding density of the repair bin (1) is not less than 1/10 m2And the number of the settling holes below the repairing bin (1) is multiple.
3. The method for remediating soil based on organic pollutants as claimed in claim 1, wherein: the repairing sinking ball (3) comprises an adsorbing watchcase (31) and a water supply cavity (33) arranged at the center of the adsorbing watchcase (31), a plurality of water loss blocks (32) which are uniformly distributed are connected to the outer surface of the adsorbing watchcase (31) in an embedded mode, a water guide fiber rod (4) is connected into the water loss blocks (32), and the water guide fiber rod (4) penetrates through the adsorbing watchcase (31) and extends into the water supply cavity (33).
4. A soil remediation method based on organic pollutants as claimed in claim 3, wherein: adsorb watchcase (31) surface and still seted up a plurality of evenly distributed's company outer hole (7), and link outer hole (7) and the crisscross distribution of piece that loses water (32), it has movable tucking (5) to inlay even outer hole (7) internalization, it has biography power intranet (6) to inlay in adsorbing watchcase (31), and passes power intranet (6) and run through the setting of piece that loses water (32), move tucking (5) and pass the node that biography power intranet (6) and be connected.
5. The method for remediating soil based on organic pollutants as claimed in claim 4, wherein: the joint of the corresponding power transmission internal net (6) in the outer connecting hole (7) is connected with a water decomposition block (8), and the edge of the water decomposition block (8) is connected with a thermal decomposition ring (10) which is embedded in the adsorption meter shell (31).
6. The method for remediating soil based on organic pollutants as claimed in claim 5, wherein: a plurality of biological repair capsules (9) are embedded in the thermal decomposition ring (10), and each biological repair capsule (9) comprises a hydrolysis coat (91) and biological repair liquid (92) filled in the hydrolysis coat (91).
7. The method for remediating soil based on organic pollutants as claimed in claim 6, wherein: the hydrolysis coat (91) is made of water-soluble materials, and the bioremediation liquid (92) is a mixture of degradation bacteria and nutrient solution.
8. The method for remediating soil based on organic pollutants as claimed in claim 7, wherein: the degrading bacteria belong to the genus Sphingomonas, the nutrient solution is a mixture of urea, potassium dihydrogen phosphate and water, and the mass ratio of C to N to P is 100 to 10 to 1.
9. The method for remediating soil based on organic pollutants as claimed in claim 5, wherein: the water decomposition block (8) is made of effervescent disintegrant, and the thermal decomposition ring (10) is made of solid material which can decompose oxygen by heating.
10. A soil remediation method based on organic pollutants as claimed in claim 3, wherein: the adsorption meter shell (31) is made of a solid adsorption material, and the water loss block (32) is made of an elastic water absorption material.
CN202010845124.5A 2020-08-20 2020-08-20 Soil remediation method based on organic pollutants Withdrawn CN111992574A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113056980A (en) * 2021-01-05 2021-07-02 肖臣 Replacement type rapid repair method for saline-alkali soil
CN113477695A (en) * 2021-06-07 2021-10-08 黄丽梅 Use effectual soil pollution to administer and use prosthetic devices

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113056980A (en) * 2021-01-05 2021-07-02 肖臣 Replacement type rapid repair method for saline-alkali 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
CN113477695A (en) * 2021-06-07 2021-10-08 黄丽梅 Use effectual soil pollution to administer and use prosthetic devices

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Application publication date: 20201127