CN106583438A - Remediation system and method for poisonous and harmful soil - Google Patents
Remediation system and method for poisonous and harmful soil Download PDFInfo
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- CN106583438A CN106583438A CN201710056343.3A CN201710056343A CN106583438A CN 106583438 A CN106583438 A CN 106583438A CN 201710056343 A CN201710056343 A CN 201710056343A CN 106583438 A CN106583438 A CN 106583438A
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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
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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
- B09C1/10—Reclamation of contaminated soil microbiologically, biologically or by using enzymes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
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Abstract
The invention relates to a remediation system and method for poisonous and harmful soil. The remediation system comprises soil heavy metal detection equipment used for detecting whether soil contains heavy metals or not, crushing equipment and screening equipment, as well as an impurity cleaning equipment, primary heavy metal purification equipment and secondary purification equipment which are connected with the screening equipment, wherein the impurity cleaning equipment is connected with a sedimentation basin; the sedimentation basin is connected with the primary heavy metal purification equipment and the secondary purification equipment; sediment at the lower part of the sedimentation basin is fed into the primary heavy metal purification equipment or the secondary purification equipment; and the primary heavy metal purification equipment and the secondary purification equipment communicate with each other through a muddy water storage tank. The remediation system further comprises sewage treatment equipment connected with water outlets of the sedimentation basin, the primary heavy metal purification equipment and the secondary purification equipment and used for treating sewage discharged by the sedimentation basin, the primary heavy metal purification equipment and the secondary purification equipment, and modifier mixing and stirring equipment communicating with the secondary purification equipment.
Description
Technical field
The present invention relates to a kind of poisonous and hazardous soil carries out repair system and method.
Background technology
Environmental protection, safety and Health are the pursuits of people.With social development progress, in order to pursue, high yield is high to be received agricultural,
And to ensure that crop is not invaded and harassed by pest and disease damage, and in a large number using fertilizer and pesticide, add industrial pollution seriously, cause Pesticide Residue in Soil
And heavy-metal residual, then cause crop in also have residual, while also can polluted underground water, impact people health, people
The environment depended on for existence is constantly on the hazard, and counts according to relevant departments, and China's subsoil water about 60% is contaminated, and soil about 90% is received
It is to pollution and increasingly severe.
In view of above-mentioned defect, the positive in addition research and innovation of the design people, to founding a kind of poisonous and hazardous soil
Carry out repair system and method so as to more the value in industry.
The content of the invention
To solve above-mentioned technical problem, it is an object of the invention to provide a kind of simple structure, reasonable in design, easy to use
Poisonous and hazardous soil carries out repair system and method.
The poisonous and hazardous soil of the present invention carries out repair system, including：Whether containing heavy metal in for detecting soil
Heavy metal-polluted soil testing equipment, disintegrating apparatus, screening plant, is once weighed the debris cleaning equipment being connected with the screening plant
Metal purification equipment, double purification equipment, the debris cleaning equipment is connected with sedimentation tank, the sedimentation tank respectively with it is described
Heavy metal cleaning equipment, double purification equipment are connected, the precipitation of sedimentation tank bottom send into a heavy metal cleaning equipment or
Double purification equipment, is connected between a heavy metal cleaning equipment and double purification equipment by muddy water storage tank；
Also include being connected with described sedimentation tank, a connected outlet of heavy metal cleaning equipment, double purification equipment respectively
For processing the sewage disposal device of the sewage that sedimentation tank, a heavy metal cleaning equipment and double purification equipment are discharged；
Wherein, a heavy metal cleaning equipment includes：A rinsing bowl, secondary rinsing bowl, the solid-liquid separation being sequentially connected
Device, and the dehydration device being connected with the solid-liquid separator；The dehydration device connects muddy water storage tank；
The double purification equipment includes：The one-level drip washing box that is sequentially connected in series, one-level solid-liquid blender, one-level hydrocyclone,
Two grades of hydrocyclones, the outlet of the one-level hydrocyclone and two grades of hydrocyclones is connected with two-step washing case；Two
Level drip washing box be sequentially connected two grades of solid-liquid blenders, three-level hydrocyclone, filter and centrifuge, also including respectively with institute
One-level drip washing box, the detergent box of two-step washing case UNICOM stated；
Also include, the modifying agent of the centrifuge UNICOM mixes equipment.
Further, the disintegrating apparatus includes：Casing, the casing upside is provided with import, and the casing downside is arranged
There is outlet, the casing internal is provided with a sprinkling equipment, and the left and right sides of the sprinkling equipment lower casing is fixed with motor, institute
State and be provided with motor rotating shaft, impeller knife is provided with the rotating shaft.
Further, the material of the drill rod and impeller knife is hard alloy material.
Further, optics primary purifying equipment is provided between the disintegrating apparatus and double purification equipment, optics is primary
Cleaning equipment includes：Columned casing, the upper planar portions of the casing are provided with some entrances, and entrance is connected with pipeline, except different
Taste device, fan are sequentially connected respectively by pipeline, and ultra-violet light-emitting lamp and photocatalysis apparatus, pipeline are provided with inside deodorizing device
Finally it is arranged on the lower plane of casing with outlet.
Further, the upper end of the one-level drip washing tank, two-step washing tank and water washing tank is mounted on bilobed wheel blender；
Also, the one-level drip washing tank, two-step washing tank are respectively equipped with ultrasonic plate.
Further, the modifying agent mixes equipment includes column type agitator tank, and the two ends of the agitator tank are distinguished
Charging aperture and discharging opening are provided with, it is parallel in the agitator tank to be provided with the first shaft and the second shaft, first shaft
Supported by the clutch shaft bearing on the outside of agitator tank, second bearing respectively with the second shaft, first shaft and second
Respectively at least provided with one group of mixing arm on shaft, the length of mixing arm is more than second shaft on first shaft
Mixing arm in the length of upper mixing arm, and the first shaft and the second shaft is crisscross arranged；The mixer drive bag
The first motor and the second motor are included, first motor, the second motor are connected respectively with the first reductor, the second reductor；Institute
State the output shaft of the first reductor, the output shaft of the second reductor to be connected respectively at the first shaft, the second shaft.
The poisonous and hazardous soil of the present invention carries out restorative procedure, including：
Soil working area is set, antiseepage film or antiseepage cloth are tamped and laid in the bottom in soil working area, it is to be repaired by what is excavated
Multiple contaminated soil is placed on the antiseepage film in soil working area or antiseepage cloth；
Soil after will be broken sends into vibrosieve equipment, and the debris in soil and soil are separated, and the soil after sieving falls
Screen cloth top is then isolated in debris such as the bottom of vibrosieve equipment, concrete, fragment of brick, stones in soil；
Debris in soil are sent into into debris cleaning equipment to be washed, the soil on concrete, fragment of brick, stone debris is will be attached to
Earth eluting；By in the muddy water input sedimentation tank of soil elution, enter water-filling, mud and separate；
Heavy metal analysis are carried out to the soil,
If detecting content of beary metal more than predetermined threshold, by soil be input into heavy metal cleaning equipment carry out pretreatment it
Afterwards, soil is exported carries out purified treatment into double purification equipment；
If detecting content of beary metal not less than predetermined threshold, soil is input into be carried out at purification into double purification equipment
Reason；
The soil block for treating rehabilitating soil using disintegrating apparatus is crushed；
Heavy metal cleaning equipment carries out purified treatment and specifically includes：Contaminated soil is in one-stage water wash groove to fragment or various
The deposit of particle diameter is cleaned, and chromium, lead, cadmium, selenium, hydrargyrum, arsenic heavy metal compound are removed, and bulky grain clean soil is separated
Out as concrete or the like, or topple over, little particle Jing solid-liquid separator is separated, by dewatering system and double-filtration system
System, the cleaning mixture in little particle and precipitate is cleaned, remaining little particle clean soil is utilized, and regenerating unit will have been captured
Heavy metal release out, is attracted on solid absorbent, and heavy metal is reclaimed from cleaning mixture；
Double purification equipment carries out purified treatment and specifically includes：Washing desorption is carried out to fine earth earth particle suspension liquid under the sieve that obtains
Process, coutroi velocity is 6～8m/ s, and the volumetric concentration of solid-liquid mixed liquor is 10～20%；Mixed by one-level solid-liquid
Device is conveyed and mixed, and then eddy flow washing is desorbed and is classified in one-level cyclone, and the major function of one-level cyclone is
Gradation, effectiveness of classification is 120～180 μm；What one-level level cyclone overflow exported out passes through front containing solid cleaning mixture
Second cyclone of the end equipped with micro- eddy flow sorting unit carries out depth separation, and the function of second cyclone is separation function, separates essence
Spend for 3 μm, to ensure that the cleaning mixture solid content for returning washing liquid storage tank is less than 0.02%；
Mixed with the sandy soil that the remaining median diameter isolated is 10 μm～3mm and by two grades of solid-liquid blenders
With washing desorption, then eddy flow washing desorption and concentration are carried out by three cuff technique, the function setting of three cuff technique be containing
The depth desorption function of pollutant, reaches detached purpose in solid-liquid enrichment and soil particle；
It is dehydrated by centrifuge, the soil after dehydration enters mixed with modifying agent in physical mixed modifying agent mixing equipment
The soil sanitation agent closed in mixing plant is mixed.
Further, soil sanitation agent includes following component：Soil sanitation agent includes following component：Radix Sophorae Flavescentis extractive liquid 8-20
Part；Mahonia fortunei (Lindl.) Fedde extracting solution 20-40 parts；Calcium disodium edathamil 0.08-0.5 parts；Sodium thiosulfate 0.1-0.5 parts；It is living
Property powdered carbon 25-50 parts, plant ash 80-100 parts and microbial bacteria 1-3 parts.
Further, the screen cloth mesh diameter of the screening plant is 3-8cm.
Further, described antiseepage film or antiseepage cloth are pressure, ventilative, waterproof the nylon of energy for air permeable waterproof fibrous layer
Pipe, Caulis et Folium Lini pipe, canvas duct, nylon blend polyester layer.
By such scheme, the present invention at least has advantages below：
The heavy-metal contaminated soil restorative procedure of the present invention can carry out effective break process with heavy metal contaminated soil, pass through
Hierarchical screening, rejects the debris in soil, and debris can be processed and be recycled, and each operation is carried out continuously, make to crush,
Screening, add each step of medicament, mixing, water process integrated, it is to avoid various processes are separately carried out in existing process method
Deficiency, with good systematicness and seriality, be conducive to comprehensive control of contaminated soil governance process, reduce the two of environment
Secondary pollution, and realize the secondary utilization of discarded impurity resource.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of description, below with presently preferred embodiments of the present invention and coordinate accompanying drawing describe in detail as after.
Description of the drawings
Fig. 1 is the structured flowchart that poisonous and hazardous soil of the invention carries out repair system；
Fig. 2 is the structural representation of the disintegrating apparatus that poisonous and hazardous soil of the invention carries out repair system.
Specific embodiment
With reference to the accompanying drawings and examples, the specific embodiment of the present invention is described in further detail.Hereinafter implement
Example is not limited to the scope of the present invention for illustrating the present invention.
Referring to Fig. 1 and 2, the poisonous and hazardous soil described in a preferred embodiment of the present invention carries out repair system, including：With
Whether the heavy metal-polluted soil testing equipment containing heavy metal, disintegrating apparatus, screening plant in detection soil, set with the screening
Standby connected debris cleaning equipment, heavy metal cleaning equipment, a double purification equipment, the debris cleaning equipment and sedimentation tank
Connection, the sedimentation tank is connected respectively with a described heavy metal cleaning equipment, double purification equipment, and sedimentation tank bottom sinks
Form sediment and send into a heavy metal cleaning equipment or double purification equipment, a heavy metal cleaning equipment and double purification equipment it
Between be connected by muddy water storage tank；
Also include being connected with described sedimentation tank, a connected outlet of heavy metal cleaning equipment, double purification equipment respectively
For processing the sewage disposal device of the sewage that sedimentation tank, a heavy metal cleaning equipment and double purification equipment are discharged；
Wherein, a heavy metal cleaning equipment includes：A rinsing bowl, secondary rinsing bowl, the solid-liquid separation being sequentially connected
Device, and the dehydration device being connected with the solid-liquid separator；The dehydration device connects muddy water storage tank；
The double purification equipment includes：The one-level drip washing box that is sequentially connected in series, one-level solid-liquid blender, one-level hydrocyclone,
Two grades of hydrocyclones, the outlet of the one-level hydrocyclone and two grades of hydrocyclones is connected with two-step washing case；Two
Level drip washing box be sequentially connected two grades of solid-liquid blenders, three-level hydrocyclone, filter and centrifuge, also including respectively with institute
One-level drip washing box, the detergent box of two-step washing case UNICOM stated；
Also include, the modifying agent of the centrifuge UNICOM mixes equipment.
The disintegrating apparatus includes：Casing, the casing upside is provided with import, and the casing downside is provided with outlet 3, institute
State casing internal and be provided with a sprinkling equipment 7, the left and right sides of the sprinkling equipment lower casing is fixed with motor 4, the motor
On rotating shaft 5 is installed, impeller knife 6 is provided with the rotating shaft.
The operation principle of the present invention is as follows：
Soil working area is set, antiseepage film or antiseepage cloth are tamped and laid in the bottom in soil working area, it is to be repaired by what is excavated
Multiple contaminated soil is placed on the antiseepage film in soil working area or antiseepage cloth；
Soil after will be broken sends into vibrosieve equipment, and the debris in soil and soil are separated, and the soil after sieving falls
Screen cloth top is then isolated in debris such as the bottom of vibrosieve equipment, concrete, fragment of brick, stones in soil；
Debris in soil are sent into into debris cleaning equipment to be washed, the soil on concrete, fragment of brick, stone debris is will be attached to
Earth eluting；By in the muddy water input sedimentation tank of soil elution, enter water-filling, mud and separate；
Heavy metal analysis are carried out to the soil,
If detecting content of beary metal more than predetermined threshold, by soil be input into heavy metal cleaning equipment carry out pretreatment it
Afterwards, soil is exported carries out purified treatment into double purification equipment；
If detecting content of beary metal not less than predetermined threshold, soil is input into be carried out at purification into double purification equipment
Reason；
The soil block for treating rehabilitating soil using disintegrating apparatus is crushed；
Heavy metal cleaning equipment carries out purified treatment and specifically includes：Contaminated soil is in one-stage water wash groove to fragment or various
The deposit of particle diameter is cleaned, and chromium, lead, cadmium, selenium, hydrargyrum, arsenic heavy metal compound are removed, and bulky grain clean soil is separated
Out as concrete or the like, or topple over, little particle Jing solid-liquid separator is separated, by dewatering system and double-filtration system
System, the cleaning mixture in little particle and precipitate is cleaned, remaining little particle clean soil is utilized, and regenerating unit will have been captured
Heavy metal release out, is attracted on solid absorbent, and heavy metal is reclaimed from cleaning mixture；
Double purification equipment carries out purified treatment and specifically includes：Washing desorption is carried out to fine earth earth particle suspension liquid under the sieve that obtains
Process, coutroi velocity is 6～8m/ s, and the volumetric concentration of solid-liquid mixed liquor is 10～20%；Mixed by one-level solid-liquid
Device is conveyed and mixed, and then eddy flow washing is desorbed and is classified in one-level cyclone, and the major function of one-level cyclone is
Gradation, effectiveness of classification is 120～180 μm；What one-level level cyclone overflow exported out passes through front containing solid cleaning mixture
Second cyclone of the end equipped with micro- eddy flow sorting unit carries out depth separation, and the function of second cyclone is separation function, separates essence
Spend for 3 μm, to ensure that the cleaning mixture solid content for returning washing liquid storage tank is less than 0.02%；
Mixed with the sandy soil that the remaining median diameter isolated is 10 μm～3mm and by two grades of solid-liquid blenders
With washing desorption, then eddy flow washing desorption and concentration are carried out by three cuff technique, the function setting of three cuff technique be containing
The depth desorption function of pollutant, reaches detached purpose in solid-liquid enrichment and soil particle；
It is dehydrated by centrifuge, the soil after dehydration enters mixed with modifying agent in physical mixed modifying agent mixing equipment
The soil sanitation agent closed in mixing plant is mixed.
Further, soil sanitation agent includes following component：Soil sanitation agent includes following component：Radix Sophorae Flavescentis extractive liquid 8-20
Part；Mahonia fortunei (Lindl.) Fedde extracting solution 20-40 parts；Calcium disodium edathamil 0.08-0.5 parts；Sodium thiosulfate 0.1-0.5 parts；It is living
Property powdered carbon 25-50 parts, plant ash 80-100 parts and microbial bacteria 1-3 parts.
In this embodiment, the material of the drill rod and impeller knife is hard alloy material.
Optics primary purifying equipment, optics primary purifying equipment bag are provided between the disintegrating apparatus and double purification equipment
Include：Columned casing, the upper planar portions of the casing are provided with some entrances, and entrance is connected with pipeline, deodorizing device, fan
Be sequentially connected by pipeline respectively, be provided with ultra-violet light-emitting lamp and photocatalysis apparatus inside deodorizing device, pipeline finally with outlet
It is arranged on the lower plane of casing.
The upper end of the one-level drip washing tank, two-step washing tank and water washing tank is mounted on bilobed wheel blender；Also, it is described
One-level drip washing tank, two-step washing tank are respectively equipped with ultrasonic plate.
The modifying agent mixes equipment includes column type agitator tank, and the agitator tank is respectively arranged at two ends with charging aperture
And discharging opening, it is parallel in the agitator tank to be provided with the first shaft and the second shaft, first shaft and the second stirring
Axle is supported respectively by the clutch shaft bearing on the outside of agitator tank, second bearing, is divided on first shaft and the second shaft
Not at least provided with one group of mixing arm, the length of mixing arm is more than mixing arm on second shaft on first shaft
Mixing arm in length, and the first shaft and the second shaft is crisscross arranged；The mixer drive includes the first motor
With the second motor, first motor, the second motor are connected respectively with the first reductor, the second reductor；Described first slows down
The output shaft of machine, the output shaft of the second reductor are connected respectively at the first shaft, the second shaft.
Embodiment 2
Poisonous and hazardous soil described in a preferred embodiment of the present invention carries out restorative procedure, including：
Soil working area is set, antiseepage film or antiseepage cloth are tamped and laid in the bottom in soil working area, it is to be repaired by what is excavated
Multiple contaminated soil is placed on the antiseepage film in soil working area or antiseepage cloth；
Soil after will be broken sends into vibrosieve equipment, and the debris in soil and soil are separated, and the soil after sieving falls
Screen cloth top is then isolated in debris such as the bottom of vibrosieve equipment, concrete, fragment of brick, stones in soil；
Debris in soil are sent into into debris cleaning equipment to be washed, the soil on concrete, fragment of brick, stone debris is will be attached to
Earth eluting；By in the muddy water input sedimentation tank of soil elution, enter water-filling, mud and separate；
Heavy metal analysis are carried out to the soil,
If detecting content of beary metal more than predetermined threshold, by soil be input into heavy metal cleaning equipment carry out pretreatment it
Afterwards, soil is exported carries out purified treatment into double purification equipment；
If detecting content of beary metal not less than predetermined threshold, soil is input into be carried out at purification into double purification equipment
Reason；
The soil block for treating rehabilitating soil using disintegrating apparatus is crushed；
Heavy metal cleaning equipment carries out purified treatment and specifically includes：Contaminated soil is in one-stage water wash groove to fragment or various
The deposit of particle diameter is cleaned, and chromium, lead, cadmium, selenium, hydrargyrum, arsenic heavy metal compound are removed, and bulky grain clean soil is separated
Out as concrete or the like, or topple over, little particle Jing solid-liquid separator is separated, by dewatering system and double-filtration system
System, the cleaning mixture in little particle and precipitate is cleaned, remaining little particle clean soil is utilized, and regenerating unit will have been captured
Heavy metal release out, is attracted on solid absorbent, and heavy metal is reclaimed from cleaning mixture；
Double purification equipment carries out purified treatment and specifically includes：Washing desorption is carried out to fine earth earth particle suspension liquid under the sieve that obtains
Process, coutroi velocity is 6～8m/ s, and the volumetric concentration of solid-liquid mixed liquor is 10～20%；Mixed by one-level solid-liquid
Device is conveyed and mixed, and then eddy flow washing is desorbed and is classified in one-level cyclone, and the major function of one-level cyclone is
Gradation, effectiveness of classification is 120～180 μm；What one-level level cyclone overflow exported out passes through front containing solid cleaning mixture
Second cyclone of the end equipped with micro- eddy flow sorting unit carries out depth separation, and the function of second cyclone is separation function, separates essence
Spend for 3 μm, to ensure that the cleaning mixture solid content for returning washing liquid storage tank is less than 0.02%；
Mixed with the sandy soil that the remaining median diameter isolated is 10 μm～3mm and by two grades of solid-liquid blenders
With washing desorption, then eddy flow washing desorption and concentration are carried out by three cuff technique, the function setting of three cuff technique be containing
The depth desorption function of pollutant, reaches detached purpose in solid-liquid enrichment and soil particle；
It is dehydrated by centrifuge, the soil after dehydration enters mixed with modifying agent in physical mixed modifying agent mixing equipment
The soil sanitation agent closed in mixing plant is mixed.
In the present embodiment, soil sanitation agent includes following component：Soil sanitation agent includes following component：Radix Sophorae Flavescentis extractive liquid 8-
20 parts；Mahonia fortunei (Lindl.) Fedde extracting solution 20-40 parts；Calcium disodium edathamil 0.08-0.5 parts；Sodium thiosulfate 0.1-0.5 parts；
Activated carbon powder 25-50 parts, plant ash 80-100 parts and microbial bacteria 1-3 parts.
The screen cloth mesh diameter of the screening plant is 3-8cm.
Described antiseepage film or antiseepage cloth is for air permeable waterproof fibrous layer can pressure, ventilative, waterproof nylon tube, Caulis et Folium Lini
Pipe, canvas duct, nylon blend polyester layer.
Said method can utilize system embodiment realize, system also can apply with the embodiment of method in.
The above is only the preferred embodiment of the present invention, is not limited to the present invention, it is noted that for this skill
For the those of ordinary skill in art field, on the premise of without departing from the technology of the present invention principle, can also make it is some improvement and
Modification, these are improved and modification also should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of poisonous and hazardous soil carries out repair system, it is characterised in that include：Whether containing weight in for detecting soil
The heavy metal-polluted soil testing equipment of metal, disintegrating apparatus, screening plant, the debris cleaning equipment being connected with the screening plant,
Heavy metal cleaning equipment, a double purification equipment, the debris cleaning equipment is connected with sedimentation tank, the sedimentation tank respectively with
A described heavy metal cleaning equipment, double purification equipment are connected, and the precipitation of sedimentation tank bottom sends into a heavy metal purification
Equipment or double purification equipment, are connected between a heavy metal cleaning equipment and double purification equipment by muddy water storage tank
It is logical；
Also include being connected with described sedimentation tank, a connected outlet of heavy metal cleaning equipment, double purification equipment respectively
For processing the sewage disposal device of the sewage that sedimentation tank, a heavy metal cleaning equipment and double purification equipment are discharged；
Wherein, a heavy metal cleaning equipment includes：A rinsing bowl, secondary rinsing bowl, the solid-liquid separation being sequentially connected
Device, and the dehydration device being connected with the solid-liquid separator；The dehydration device connects muddy water storage tank；
The double purification equipment includes：One-level drip washing box, one-level solid-liquid blender, the one-level hydrocyclone being sequentially connected in series
, two grades of hydrocyclones, the outlet of the one-level hydrocyclone and two grades of hydrocyclones is connected with two-step washing case；Two
Level drip washing box be sequentially connected two grades of solid-liquid blenders, three-level hydrocyclone, filter and centrifuge, also including respectively with
Described one-level drip washing box, the detergent box of two-step washing case UNICOM；
Also include, the modifying agent of the centrifuge UNICOM of the double purification equipment mixes equipment.
2. poisonous and hazardous soil according to claim 1 carries out repair system, it is characterised in that the disintegrating apparatus bag
Include：Casing, the casing upside is provided with import, and the casing downside is provided with outlet, and the casing internal is provided with a spray and sets
Standby, the left and right sides of the sprinkling equipment lower casing is fixed with motor, and rotating shaft is provided with the motor, sets in the rotating shaft
It is equipped with impeller knife.
3. poisonous and hazardous soil according to claim 1 carries out repair system, it is characterised in that the drill rod and impeller
The material of knife is hard alloy material.
4. poisonous and hazardous soil according to claim 1 carries out repair system, it is characterised in that the disintegrating apparatus and
Optics primary purifying equipment is provided between double purification equipment, optics primary purifying equipment includes：Columned casing, the case
The upper planar portions of body are provided with some entrances, and entrance is connected with pipeline, and deodorizing device, fan are sequentially connected respectively by pipeline,
Ultra-violet light-emitting lamp and photocatalysis apparatus are provided with inside deodorizing device, pipeline is finally arranged on the lower plane of casing with outlet.
5. poisonous and hazardous soil according to claim 1 carries out repair system, it is characterised in that the one-level drip washing tank
, two-step washing tank and water washing tank upper end be mounted on bilobed wheel blender；The one-level drip washing tank, two-step washing tank difference
It is provided with ultrasonic plate.
6. poisonous and hazardous soil according to claim 1 carries out repair system, it is characterised in that the modifying agent mixing
Mixing plant includes column type agitator tank, and the agitator tank is respectively arranged at two ends with charging aperture and discharging opening, in the agitator tank
Parallel to be provided with the first shaft and the second shaft, first shaft and the second shaft are respectively by positioned at agitator tank outside
Clutch shaft bearing, second bearing support, respectively at least provided with one group of mixing arm, institute on first shaft and the second shaft
State the length of the length more than mixing arm on second shaft of mixing arm on the first shaft, and the first shaft and second
Mixing arm on shaft is crisscross arranged；The mixer drive includes the first motor and the second motor, first motor,
Second motor is connected respectively with the first reductor, the second reductor；The output shaft of first reductor, the second reductor it is defeated
Shaft is connected respectively at the first shaft, the second shaft.
7. a kind of poisonous and hazardous soil carries out restorative procedure, it is characterised in that include：
Soil working area is set, antiseepage film or antiseepage cloth are tamped and laid in the bottom in soil working area, it is to be repaired by what is excavated
Multiple contaminated soil is placed on the antiseepage film in soil working area or antiseepage cloth；
Soil after will be broken sends into vibrosieve equipment, and the debris in soil and soil are separated, and the soil after sieving falls
In the bottom of vibrosieve equipment, the concrete, fragment of brick, stone debris in soil is then isolated in screen cloth top；
Debris in soil are sent into into debris cleaning equipment to be washed, the soil on concrete, fragment of brick, stone debris is will be attached to
Earth eluting；By in the muddy water input sedimentation tank of soil elution, enter water-filling, mud and separate；
Heavy metal analysis are carried out to the soil,
If detecting content of beary metal more than predetermined threshold, by soil be input into heavy metal cleaning equipment carry out pretreatment it
Afterwards, soil is exported carries out purified treatment into double purification equipment；
If detecting content of beary metal not less than predetermined threshold, soil is input into be carried out at purification into double purification equipment
Reason；
The soil block for treating rehabilitating soil using disintegrating apparatus is crushed；
Heavy metal cleaning equipment carries out purified treatment and specifically includes：Contaminated soil is in one-stage water wash groove to fragment or various
The deposit of particle diameter is cleaned, and chromium, lead, cadmium, selenium, hydrargyrum, arsenic heavy metal compound are removed, and bulky grain clean soil is separated
Out as concrete or the like, or topple over, little particle Jing solid-liquid separator is separated, by dewatering system and double-filtration system
System, the cleaning mixture in little particle and precipitate is cleaned, remaining little particle clean soil is utilized, and regenerating unit will have been captured
Heavy metal release out, is attracted on solid absorbent, and heavy metal is reclaimed from cleaning mixture；
Double purification equipment carries out purified treatment and specifically includes：Washing desorption is carried out to fine earth earth particle suspension liquid under the sieve that obtains
Process, coutroi velocity is 6～8m/ s, and the volumetric concentration of solid-liquid mixed liquor is 10～20%；By one-level solid-liquid blender
Conveyed and mixed, then eddy flow washing is desorbed and is classified in one-level cyclone, the major function of one-level cyclone for
Grain classification, effectiveness of classification is 120～180 μm；What one-level level cyclone overflow exported out passes through front end containing solid cleaning mixture
Second cyclone equipped with micro- eddy flow sorting unit carries out depth separation, and the function of second cyclone is separation function, separation accuracy
For 3 μm, to ensure that the cleaning mixture solid content for returning washing liquid storage tank is less than 0.02%；
Mixed with the sandy soil that the remaining median diameter isolated is 10 μm～3mm and by two grades of solid-liquid blenders
With washing desorption, then eddy flow washing desorption and concentration are carried out by three cuff technique, the function setting of three cuff technique be containing
The depth desorption function of pollutant, reaches detached purpose in solid-liquid enrichment and soil particle；
It is dehydrated by centrifuge, the soil after dehydration enters mixed with modifying agent in physical mixed modifying agent mixing equipment
The soil conditioner closed in mixing plant is mixed.
8. poisonous and hazardous soil according to claim 7 carries out restorative procedure, it is characterised in that soil sanitation agent includes
Following component：Radix Sophorae Flavescentis extractive liquid 8-20 parts；Mahonia fortunei (Lindl.) Fedde extracting solution 20-40 parts；Calcium disodium edathamil 0.08-0.5 parts；
Sodium thiosulfate 0.1-0.5 parts；Activated carbon powder 25-50 parts, plant ash 80-100 parts and microbial bacteria 1-3 parts.
9. poisonous and hazardous soil according to claim 7 carries out restorative procedure, it is characterised in that the screening plant
Screen cloth mesh diameter is 3-8cm.
10. poisonous and hazardous soil according to claim 7 carries out restorative procedure, it is characterised in that described antiseepage film
Or antiseepage cloth for air permeable waterproof fibrous layer be can pressure, ventilative, waterproof nylon tube, Caulis et Folium Lini pipe, canvas duct, nylon terylene mix
Spin layer.
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| CN111203436A (en) * | 2020-01-10 | 2020-05-29 | 顺茂环境服务(上海)有限公司 | Pretreatment device and soil remediation method using same |
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Application publication date: 20170426 |