CN106269834B - Heavy-metal contaminated soil prosthetic device and its restorative procedure - Google Patents
Heavy-metal contaminated soil prosthetic device and its restorative procedure Download PDFInfo
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- CN106269834B CN106269834B CN201610942801.9A CN201610942801A CN106269834B CN 106269834 B CN106269834 B CN 106269834B CN 201610942801 A CN201610942801 A CN 201610942801A CN 106269834 B CN106269834 B CN 106269834B
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- soil
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- medical fluid
- cartridge
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Classifications
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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
- B09C1/02—Extraction using liquids, e.g. washing, leaching, flotation
Abstract
The invention discloses a kind of heavy-metal contaminated soil prosthetic devices, including soil shredder assemblies, soil remediation medical fluid to prepare soil recovery pond and medical fluid accumulator tank after component, Soil leaching component, reparation；Soil leaching component prepares component with soil shredder assemblies and soil remediation medical fluid and connect；The medical fluid accumulator tank is connect by conduit with Soil leaching component, and soil recovery pond is set to the lower section of Soil leaching component after the reparation.Soil is repaired using the device of the invention, play a dual role of rehabilitating soil and promotes plant growth.
Description
Technical field
The present invention relates to a kind of agriculture and forestry soil remediation fields, and in particular to a kind of heavy-metal contaminated soil prosthetic device,
The method for further relating to carry out heavy-metal contaminated soil reparation using the device.
Background technique
In the inorganic pollution of soil, outstanding behaviours is the pollution of heavy metal.Heavy metal cannot be edaphon institute
Decompose, and be easy to accumulate, be converted into the bigger methyl compound of toxicity, in addition some by food chain with adverse concentration in human body
Interior accumulation seriously endangers human health.
Heavy metal pollution of soil object mainly has lead, cadmium, mercury, arsenic, chromium, copper, iron, zinc etc., though arsenic is not belonging to heavy metal, because
Its behavior and source and harm are all similar to heavy metal, therefore are usually included in heavy metal classes and discuss.For being needed to plant,
Two classes can be divided into: one kind is the unwanted element of plant growth and development, and obvious to human health damage, such as cadmium, mercury, lead
Deng another kind of is element needed for plant normal development, and has certain physiological function again to human body, such as copper, zinc, but can excessively be sent out
Raw pollution, interferes plant growth and development.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of heavy-metal contaminated soil prosthetic device, play rehabilitating soil and
Promote the double action of plant growth.
In order to solve the above technical problems, the present invention adopts the following technical scheme that: heavy-metal contaminated soil prosthetic device, including
Soil shredder assemblies, soil remediation medical fluid prepare soil recovery pond and medical fluid recycling after component, Soil leaching component, reparation
Slot；Soil leaching component prepares component with soil shredder assemblies and soil remediation medical fluid and connect；The medical fluid accumulator tank passes through
Conduit is connect with Soil leaching component, and soil recovery pond is set to the lower section of Soil leaching component after the reparation.
Further, the agitating paddle that the soil shredder assemblies include cylindrical drum and are set in cylindrical drum, it is described
It is provided with soil entrance at the top of cylindrical drum, row spray is respectively arranged in the cylinder medial wall of the tube of the two sides of soil entrance
It manages, multiple spray heads is set on spray tube, the spray tube connection has the water pipe of water pump.
Further, the soil remediation medical fluid prepares component and includes the medicine-chest for having blender, is set to medicine-chest bottom
The heater in portion and setting and ethylenediamine disuccinic acid slot, the cetrimonium bronmide slot, hydrochloric acid trough, clay at the top of medicine-chest
Slot, acrylic acid modified chitosan aqueous solution slot, biochemical fulvic acid and alginic acid mixing liquid bath are provided with deionized water on medicine-chest and enter
Mouth and medicine liquid outlet.
It further, be concentration in the acrylic acid modified chitosan aqueous solution slot is the acrylic acid modified of 0.5-1.2%wt
Chitosan aqueous solution, mixed liquor in biochemical fulvic acid and alginic acid mixing liquid bath by biochemical fulvic acid, alginic acid and water according to
1:0.8:80-90 mass ratio composition.
Further, the Soil leaching component includes soil cartridge, heating device and agitating device；The soil
Earth cartridge includes barrel and cover, and barrel top half is provided with medical fluid entrance；Filter assemblies, cover top are provided in cover
Portion is provided with water outlet, and water outlet is connect by conduit with medical fluid accumulator tank；The heating device is to be set to soil storage
Heating coil in cylinder barrel interlayer；The agitating device includes agitating shaft and propeller, and propeller disc is wound on agitating shaft,
Agitating shaft is by being set to the motor driven of soil cartridge bottom；Frame is welded and fixed in the barrel two sides, and fixed frame is by turning
Axis is connect with bracket, and shaft connects driving motor, driving motor drive shaft rotation, so that soil cartridge be driven to turn over up and down
Turn.
Further, the filter assemblies are multi-layer microporous filter membrane.
Further, the medical fluid accumulator tank includes the first accumulator tank and the second accumulator tank.
The present invention also provides a kind of methods of heavy-metal contaminated soil reparation, include the following steps:
(1) soil is poured into soil shredder assemblies, opens water pump, sprays water into soil shredder assemblies, while by stirring
It mixes paddle to crush soil, so that the moisture content of soil is 5-8%, smashed soil is poured into Soil leaching component；
(2) heater for opening medicine-chest bottom, keeps the temperature of medicine-chest at 8-12 DEG C, will be in ethylenediamine disuccinic acid slot
Ethylenediamine disuccinic acid is poured into medicine-chest, addition deionized water, and the weight ratio of ethylenediamine disuccinic acid and deionized water is 1:60-
65；Solution in medicine-chest is imported in Soil leaching component, is stirred while heating, when temperature rises to 8-12 DEG C, heat preservation, after
Continuous stirring 1-2h, stands 1-2 days, carries out level-one reparation；
(3) driving motor drives, and soil cartridge flips upside down, and filters by the filter assemblies in soil cartridge, filter
Solution in soil out；Soil cartridge is ajusted again；
(4) by cetrimonium bronmide slot, hydrochloric acid trough and clay slot cetrimonium bronmide, hydrochloric acid and
Clay is added in medicine-chest according to the weight ratio of 1:0.2:70, then again to want in medicine-chest be added hexadecyl trimethylamine, hydrochloric acid
With 15 times of deionized water of clay total weight, 10-15min is stirred；Solution in medicine-chest is imported in Soil leaching component, on one side
Heating is stirred on one side, and when temperature rises to 8-12 DEG C, heat preservation continues to stir 1-2h, stands 1-2 days, carries out second level reparation；
(5) it is driven again by driving motor, soil cartridge flips upside down, by the filter assemblies mistake in soil cartridge
Filter, filters out the solution in soil；Soil cartridge is ajusted again；
(6) by acrylic acid modified chitosan aqueous solution slot acrylic acid modified chitosan aqueous solution and biochemical fulvic acid and
Biochemical fulvic acid and alginic acid mixed liquor in alginic acid mixing liquid bath pour into medicine-chest according to the weight ratio of 1:3-4, add
Mixed solution is imported in Soil leaching component, heats one on one side by 10 times of solution weight of deionized water in medicine-chest, stirring
Side stirring, when temperature rises to 8-12 DEG C, heat preservation continues to stir 1-2h, stands 3-4 days, carries out three-level reparation.
Further, the solution in first accumulator tank and the second accumulator tank, which can import in medicine-chest, recycles, and imports
As long as the 25-35%wt that the solution recycled in medicine-chest adds original solution constituent content into the solution can be used as repairing
Medicament reuses.
Beneficial effects of the present invention: structure of the invention is simple, can be to contaminated using apparatus and method of the present invention
Soil in heavy metal effectively removed, have the function of rehabilitating soil and promote soil in plant growth.
Detailed description of the invention
Fig. 1 is the novel structural schematic diagram of ability.
Fig. 2 is the structural schematic diagram of soil shredder assemblies.
Fig. 3 is the structural schematic diagram that soil remediation medical fluid prepares component.
Fig. 4 is the top view that soil remediation medical fluid prepares component.
Fig. 5 is the structural schematic diagram of Soil leaching component.
Specific embodiment
It elaborates with reference to the accompanying drawing to technical solution of the present invention.
It as shown in Figs. 1-5, is heavy-metal contaminated soil prosthetic device of the invention, including soil shredder assemblies 10, soil
Repair soil recovery pond 40 and medical fluid accumulator tank after medical fluid prepares component 20, Soil leaching component 30, repairs；Soil leaching group
Part 30 prepares component 20 with soil shredder assemblies 10 and soil remediation medical fluid and connect；The medical fluid accumulator tank passes through conduit and soil
Earth elutes component 30 and connects, and soil recovery pond 40 is set to the lower section of Soil leaching component 30 after reparation；Soil shredder assemblies 10
Component 20 is prepared with soil remediation medical fluid to be fixed by the bracket.
In the present embodiment, soil shredder assemblies 10 include cylindrical drum 11 and the agitating paddle being set in cylindrical drum 11
12, soil entrance 13 is provided at the top of cylindrical drum 11, is respectively set in the cylinder medial wall of the tube of the two sides of soil entrance 13
There is row's spray tube 14, multiple spray heads are set on spray tube 14, the connection of spray tube 14 has the water pipe of water pump.
In the present embodiment, soil remediation medical fluid prepares component 20 and includes the medicine-chest 21 for having blender, is set to medicine
The heater 22 in bottom portion and setting at the top of medicine-chest ethylenediamine disuccinic acid slot 23, cetrimonium bronmide slot 24,
Hydrochloric acid trough 25, clay slot 26, acrylic acid modified chitosan aqueous solution slot 27, biochemical fulvic acid and alginic acid mixing liquid bath 28, medicine
Deionized water entrance 291 and medicine liquid outlet 292 are provided on case 21.
It in the present embodiment, is that the acrylic acid that concentration is 0.5-1.2%wt changes in acrylic acid modified chitosan aqueous solution slot
Property chitosan aqueous solution, the mixed liquor in biochemical fulvic acid and alginic acid mixing liquid bath are pressed by biochemical fulvic acid, alginic acid and water
According to the mass ratio composition of 1:0.8:80-90.
In the present embodiment, Soil leaching component 30 includes soil cartridge, heating device 33 and agitating device；Soil
Cartridge includes barrel 31 and cover 32, and 31 top half of barrel is provided with medical fluid entrance 35；Filtering group is provided in cover 32
Part 36, water outlet 37 is provided at the top of cover 32, and water outlet 37 is connect by conduit with medical fluid accumulator tank；Heating device 33 is to set
The heating coil being placed in soil cartridge barrel interlayer；Agitating device includes agitating shaft 38 and propeller 39,39 disk of propeller
It is wound on agitating shaft, agitating shaft 38 is by being set to the motor driven of soil cartridge bottom；Frame 41 is welded and fixed in 31 two sides of barrel,
Fixed frame 41 is connect by shaft with bracket 42, and shaft connects driving motor 34, driving motor drive shaft rotation, to drive
Soil cartridge is spun upside down.After soil pours into Soil leaching component 30, cover 32 is covered, when needing to pour into solution, is driven
Dynamic motor-driven rotatable shaft, soil cartridge are inverted, and medical fluid is flowed out from the water outlet 37 on cover, import medical fluid recycling by conduit
Slot.
In the present embodiment, filter assemblies 36 are multi-layer microporous filter membrane.
In the present embodiment, medical fluid accumulator tank includes the first accumulator tank 51 and the second accumulator tank 52.
Embodiment 2
Heavy-metal contaminated soil restorative procedure, includes the following steps:
(1) soil is poured into soil shredder assemblies 10, opens water pump, sprays water into soil shredder assemblies, pass through simultaneously
Agitating paddle 12 crushes soil, so that the moisture content of soil is 5-8%, smashed soil is poured into Soil leaching component 30；
(2) heater 22 for opening 21 bottom of medicine-chest, keeps the temperature of medicine-chest 21 at 8-12 DEG C, by ethylenediamine disuccinic acid
Ethylenediamine disuccinic acid in slot 23 is poured into medicine-chest 21, and deionized water, the weight of ethylenediamine disuccinic acid and deionized water is added
Amount is than being 1:60-65；Solution in medicine-chest 21 is imported in Soil leaching component 30, is stirred while heating, when temperature liter
To 8-12 DEG C, heat preservation continues to stir 1-2h, stands 1-2 days, carries out level-one reparation；
(3) driving motor 34 drives, and soil cartridge flips upside down, by 36 mistake of filter assemblies in soil cartridge
Filter, filters out the solution in soil；Soil cartridge is ajusted again；
(4) by cetrimonium bronmide slot 24, hydrochloric acid trough 25 and clay slot 26 cetrimonium bronmide,
Hydrochloric acid and clay are added in medicine-chest 21 according to the weight ratio of 1:0.2:70, and cetyl front three is then added into medicine-chest 21 again
Amine, hydrochloric acid and 15 times of clay total weight of deionized water stir 10-15min；Solution in medicine-chest 21 is imported into Soil leaching group
It in part, is stirred while heating, when temperature rises to 8-12 DEG C, heat preservation continues to stir 1-2h, stands 1-2 days, carries out second level and repairs
It is multiple；
(5) it is driven again by driving motor 34, soil cartridge flips upside down, by the filter assemblies 36 in soil cartridge
Filtering, filters out the solution in soil；Soil cartridge is ajusted again；
(6) by the acrylic acid modified chitosan aqueous solution and biochemical fulvic acid in acrylic acid modified chitosan aqueous solution slot 28
With in alginic acid mixing liquid bath 28 biochemical fulvic acid and alginic acid mixed liquor pour into medicine-chest 21 according to the weight ratio of 1:3-4,
10 times of solution weight in medicine-chest 21 of deionized water is added, is stirred, mixed solution is imported in Soil leaching component, one
Side heating is stirred on one side, and when temperature rises to 8-12 DEG C, heat preservation continues to stir 1-2h, stands 3-4 days, carries out three-level reparation.
In present embodiment, the solution in the first accumulator tank 51 and the second accumulator tank 52, which can import in medicine-chest, to be recycled, and is led
It can be used as repairing as long as entering the solution recycled in medicine-chest and adding the 25-35%wt of original solution constituent content into the solution
Multiple medicament is practical again.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to design of the invention
It is defined with range, without departing from the design concept of the invention, ordinary engineering and technical personnel is to this hair in this field
The all variations and modifications that bright technical solution is made should all fall into protection scope of the present invention, claimed skill of the invention
Art content is all documented in technical requirements book.
Claims (3)
1. heavy-metal contaminated soil prosthetic device, it is characterised in that: including soil shredder assemblies, soil remediation medical fluid preparation group
Soil recovery pond and medical fluid accumulator tank after part, Soil leaching component, reparation；Soil leaching component and soil shredder assemblies and soil
Earth repairs medical fluid and prepares component connection；The medical fluid accumulator tank is connect by conduit with Soil leaching component, the reparation
Soil recovery pond is set to the lower section of Soil leaching component afterwards；
The agitating paddle that the soil shredder assemblies include cylindrical drum and are set in cylindrical drum, the cylindrical drum top setting
There is soil entrance, row's spray tube is respectively arranged in the cylinder medial wall of the tube of the two sides of soil entrance, is set on spray tube
Multiple spray heads are set, the spray tube connection has the water pipe of water pump；It includes band that the soil remediation medical fluid, which prepares component,
There are the medicine-chest of blender, the heater for being set to medicine-chest bottom and setting and the ethylenediamine disuccinic acid slot at the top of medicine-chest, bromination
Hexadecyl trimethylamine slot, hydrochloric acid trough, clay slot, acrylic acid modified chitosan aqueous solution slot, biochemical fulvic acid and seaweed acid-mixed
Liquid bath is closed, is provided with deionized water entrance and medicine liquid outlet on medicine-chest；It is dense in the acrylic acid modified chitosan aqueous solution slot
Degree is the acrylic acid modified chitosan aqueous solution of 0.5-1.2%wt, the mixed liquor in biochemical fulvic acid and alginic acid mixing liquid bath by
Biochemical fulvic acid, alginic acid and water are formed according to the mass ratio of 1:0.8:80-90；
The Soil leaching component includes soil cartridge, heating device and agitating device；The soil cartridge includes
Barrel and cover, barrel top half are provided with medical fluid entrance；It is provided with filter assemblies in cover, is provided with water outlet at the top of cover
Mouthful, water outlet is connect by conduit with medical fluid accumulator tank；The heating device is to be set in soil cartridge barrel interlayer
Heating coil；The agitating device includes agitating shaft and propeller, and propeller disc is wound on agitating shaft, and agitating shaft is by being arranged
Motor driven in soil cartridge bottom；Frame is welded and fixed in the barrel two sides, and fixed frame is connect by shaft with bracket,
Shaft connects driving motor, driving motor drive shaft rotation, so that soil cartridge be driven to spin upside down；
The filter assemblies are multi-layer microporous filter membrane；
The medical fluid accumulator tank includes the first accumulator tank and the second accumulator tank.
2. heavy-metal contaminated soil prosthetic device according to claim 1, it is characterised in that: the solution of medical fluid accumulator tank can
It imports in medicine-chest and recycles, as long as importing the solution recycled in medicine-chest adds original solution constituent content into the solution
25-35%wt can be used as reparation medicament and reuse.
3. the method that heavy-metal contaminated soil reparation is carried out using heavy-metal contaminated soil prosthetic device described in claim 1,
Include the following steps:
(1) soil is poured into soil shredder assemblies, opens water pump, sprays water into soil shredder assemblies, while passing through agitating paddle
Soil is crushed, so that the moisture content of soil is 5-8%, smashed soil is poured into Soil leaching component；
(2) heater for opening medicine-chest bottom, keeps the temperature of medicine-chest at 8-12 DEG C, by the second two in ethylenediamine disuccinic acid slot
Amine disuccinic acid pours into medicine-chest, addition deionized water, and the weight ratio of ethylenediamine disuccinic acid and deionized water is 1:60-65；
Solution in medicine-chest is imported in Soil leaching component, is stirred while heating, when temperature rises to 8-12 DEG C, heat preservation continues
1-2h is stirred, stands 1-2 days, carries out level-one reparation；
(3) driving motor drives, and soil cartridge flips upside down, and filters by the filter assemblies in soil cartridge, filters out soil
Solution in earth；Soil cartridge is ajusted again；
(4) by cetrimonium bronmide, hydrochloric acid and the clay in cetrimonium bronmide slot, hydrochloric acid trough and clay slot
It is added in medicine-chest according to the weight ratio of 1:0.2:70, then again to wanting to be added hexadecyl trimethylamine, hydrochloric acid and viscous in medicine-chest
The deionized water of 15 times of native total weight stirs 10-15min；Solution in medicine-chest is imported in Soil leaching component, is heated on one side
It stirs on one side, when temperature rises to 8-12 DEG C, heat preservation continues to stir 1-2h, stands 1-2 days, carries out second level reparation；
(5) it is driven again by driving motor, soil cartridge flips upside down, and filters by the filter assemblies in soil cartridge, filter
Solution in soil out；Soil cartridge is ajusted again；
(6) by acrylic acid modified chitosan aqueous solution slot acrylic acid modified chitosan aqueous solution and biochemical fulvic acid and seaweed
Biochemical fulvic acid and alginic acid mixed liquor in acid-mixed conjunction liquid bath pour into medicine-chest according to the weight ratio of 1:3-4, add medicine-chest
Mixed solution is imported in Soil leaching component, is stirred while heating by the deionized water of 10 times of interior solution weight, stirring
It mixes, when temperature rises to 8-12 DEG C, heat preservation continues to stir 1-2h, stands 3-4 days, carries out three-level reparation.
Priority Applications (1)
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| CN201610942801.9A CN106269834B (en) | 2016-10-26 | 2016-10-26 | Heavy-metal contaminated soil prosthetic device and its restorative procedure |
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| CN201610942801.9A CN106269834B (en) | 2016-10-26 | 2016-10-26 | Heavy-metal contaminated soil prosthetic device and its restorative procedure |
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| CN106269834B true CN106269834B (en) | 2019-03-26 |
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| CN108126977B (en) * | 2017-12-27 | 2020-12-15 | 环境保护部南京环境科学研究所 | Method for restoring lead polluted soil |
| CN108241050B (en) * | 2017-12-30 | 2020-07-17 | 西安科技大学 | Reciprocating leaching experimental device and experimental method |
| CN110153169A (en) * | 2018-03-26 | 2019-08-23 | 张冀鄂 | A kind of heavy-metal contaminated soil prosthetic device and biological renovation method |
| CN109226224A (en) * | 2018-11-12 | 2019-01-18 | 宁波大学 | A kind of the Polluted Soil elution prosthetic device and operating method of temperature-controllable |
| CN110449451B (en) * | 2019-01-18 | 2021-12-28 | 湖南高岭环保科技有限公司 | Device and method for repairing mine soil polluted by arsenic |
| CN111842447A (en) * | 2020-07-24 | 2020-10-30 | 吴斌 | Environment-friendly soil pollution detoxification treatment equipment |
| CN114479873A (en) * | 2022-01-28 | 2022-05-13 | 辽宁工程技术大学 | Environment-friendly compound eluent for repairing heavy metal contaminated soil and preparation method thereof |
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