CN110116127A - A kind of soil remediation method based on modified attapulgite - Google Patents
A kind of soil remediation method based on modified attapulgite Download PDFInfo
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- CN110116127A CN110116127A CN201910420266.4A CN201910420266A CN110116127A CN 110116127 A CN110116127 A CN 110116127A CN 201910420266 A CN201910420266 A CN 201910420266A CN 110116127 A CN110116127 A CN 110116127A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- 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
- B09C2101/00—In situ
Abstract
The invention discloses a kind of soil remediation methods based on modified attapulgite, the following steps are included: S1, taking recessed native raw material, recessed soil is crushed by disintegrating apparatus, weak aqua ammonia, dioctyl sebacate solution, carbon-based material and reparation liquid are added, and it is 0.2-0.3% that weak aqua ammonia addition mass fraction, which is 0.8-1.0%, dioctyl sebacate solution addition mass fraction is 1.0-1.2%, carbon-based material addition mass fraction is 0.8-1.5% and repairs liquid addition mass fraction.The present invention relates to technical field of soil remediation.The soil remediation method based on modified attapulgite, by using modified attapulgite as soil-repairing agent, it can make to be formed that one layer of adsorption capacity is strong, the rate of adsorption is fast under contaminated soil layer, the heavy metal ion in soil can effectively be adsorbed, again by having sprayed soil remediation liquid, keep plant growth well established and vigorously developing, chlorophyll enhancing, it is full of nutrition, restore genuineness；The pollution in soil, low-carbon environment-friendly are reduced, water, loam are not lost.
Description
Technical field
The present invention relates to technical field of soil remediation, specially a kind of soil remediation method based on modified attapulgite.
Background technique
Soil remediation is the technical measures for making to restore by contaminated soil normal function.In soil remediation industry, have
Soil restoring technology reach more than 100 kinds, common technology also has more than ten kinds, is broadly divided into physics, chemistry and biological three kinds of sides
Method.Since the 1980s, in the world many national particularly developed countries formulate and carried out contaminated soil administer with
Rehabilitation plan, therefore an emerging soil remediation industry is also formed, recessed soil, the i.e. abbreviation of attapulgite clay are a kind of non-
Metallic mineral resources, it is the aqueous rich magnesium aluminosilicate clays mineral of a kind of layer of chain structure, and " Concave-convex clay rod " is one
Kind nonmetal mineral resource, it is the aqueous rich magnesium aluminosilicate clays mineral of a kind of layer of chain structure.Studies have shown that concave convex rod
Stone clay can be applied to the multiple fields such as building materials, chemical industry, machinery, military project, nuclear industry, weaving, environmental protection, papermaking, medicine, food.
With the gradually development of industry, the pollution at soil and water source is caused, however existing soil remediation method cannot
It handles well containing metal ion, treatment effect is poor, not only causes the destruction of environment, and cause plant raw
Length is withered, lacks due nutrition, causes the loss of water, loam, and due to the porous media particle of soil remediation oxidant layer
Between there are gap, heavy metal element can not have been blocked to penetrate into soil deep completely, caused the pollution of deep soil.
Summary of the invention
In view of the deficiencies of the prior art, it the present invention provides a kind of soil remediation method based on modified attapulgite, solves
It cannot handle well containing metal ion, treatment effect is poor, the problem of cannot repairing well to soil.
In order to achieve the above object, the present invention is achieved by the following technical programs: a kind of soil based on modified attapulgite
Restorative procedure the following steps are included:
S1, recessed native raw material is taken, recessed soil is crushed by disintegrating apparatus, adds weak aqua ammonia, dioctyl sebacate solution, carbon
Sill and reparation liquid, and weak aqua ammonia is added mass fraction and mass fraction is added for 0.8-1.0%, dioctyl sebacate solution
For 1.0-1.2%, carbon-based material addition mass fraction is 0.8-1.5% and reparation liquid addition mass fraction is 0.2-0.3%；
S2, by S1 weak aqua ammonia be added mass fraction be 0.8-1.0%, dioctyl sebacate solution be added mass fraction be
1.0-1.2% and carbon-based material addition mass fraction are 0.8-1.5% and repair liquid mass fraction is added to be that 0.2-0.3% is placed
It to the inside of mixing machine, is mixed by mixing machine, then is filtered by filter plant, impregnated in zinc acetate solution
12-20 hours, finally liquid is filtered, the inside for placing into drying oven is dried, then the material for making clothes after drying is fallen
By pulverizer the soil-repairing agent that size is 4-6 mesh is made in material for making clothes by the inside for entering pulverizer；
S3, below upper soll layer 400-600mm depth location, pour into the soil-repairing agent in the S2, formed with a thickness of
The soil remediation oxidant layer of 5-15mm；
S4, pulverized limestone, sodium bicarbonate, bloodstone slag, pomelo peel processed material and Chinese medical extract are taken, each component content is pulverized limestone
6-9 parts, 4-7 parts of sodium bicarbonate, 3-6 parts of bloodstone slag, 8-12 parts of pomelo peel processed material, 7-13 parts of Chinese medical extract, by lime
6-9 parts of powder, 4-7 parts of sodium bicarbonate, 3-6 parts of bloodstone slag, 8-12 parts of pomelo peel processed material, 7-13 parts of Chinese medical extract be placed into
The inside of mixing machine, is mixed by mixing machine, forms soil conditioner, then soil conditioner is uniformly sprinkled upon to the soil
It repairs in oxidant layer, forms soil improvement layer；
S5, again by ethyl orthosilicate and water according to the volume ratio of 10-20:100, then the inside of mixing machine is put into, by mixed
Conjunction machine is mixed, then mixed liquid is poured into the inside of heater, then is heated by heater to liquid, heating
To boiling, nano zine oxide is added, and the liquid of boiling and nano zine oxide are poured into the inside of mixing machine, then carry out
It is uniformly mixed, finally mixed liquid is uniformly sprinkled upon on the soil improvement layer；
S6, it is formed by soil remediation oxidant layer in S5, continues the soil-repairing agent of a tiling new round, with a thickness of 5-15mm, tightly
Then carry out again S4 soil conditioner is uniformly sprinkled upon in the soil remediation oxidant layer and S5 boiling liquid is uniformly sprinkled upon it is described
In soil remediation oxidant layer.
Further, liquid is repaired in the S1 includes organic spiral vermicelli, talcum powder, sodium bicarbonate, low-carbon bacillus subtilis
Bacterium and distilled water, each component content are as follows: organic spiral vermicelli 8-10 parts, 8-10 parts of talcum powder, 5-8 parts of sodium bicarbonate, low-carbon withered grass
16-22 parts of bacillus and distilled water 30-50 parts, by organic spiral vermicelli 8-10 parts, 8-10 parts of talcum powder, 5-8 parts of sodium bicarbonate,
16-22 parts of low-carbon bacillus subtilis and distilled water 30-50 parts are placed into the inside of mixing machine, are mixed by mixing machine,
It is formed and repairs liquid.
Further, the carbon-based material in the S1 is flyash, charcoal, graphene or active carbon.
Further, mixed mixing machine is cooled down again and is reacted 10-20 after nano zine oxide being added in the S5
Minute, then the liquid after cooling and reaction is uniformly sprinkled upon in the soil remediation oxidant layer.
Further, recessed soil is ground into the particle of 16-32 mesh by the disintegrating apparatus in the S1.
Further, the internal temperature of the mixing machine in the S2 is 60-70 degrees Celsius, and the inside of mixing machine is mixed
It closes time 5-7 hours.
Further, the incorporation time of the mixing machine in the S4 is 1-2 hours, and the internal temperature of mixing machine is 40
To 60 degrees Celsius.
Further, the boiling liquid in the S5 is sprinkled upon the dosage of soil remediation oxidant layer are as follows: 200-400 milliliters every cube
Rice.
Compared with prior art, the beneficial effects of the present invention are:
(1), should soil remediation method based on modified attapulgite, by using modified attapulgite as soil-repairing agent, with boiling
The interaction of silicic acid/nano zine oxide complex sol, so that being formed under contaminated soil layer, one layer of adsorption capacity be strong, the rate of adsorption
Fastly, the soil remediation oxidant layer that can effectively adsorb the heavy metal ion in soil, under irrigation water and rainwash effect, by table
Layer soil it is heavy metal ion adsorbed with repair in oxidant layer, while can efficiently obstruct in topsoil heavy metal ion to deep soil
Earth infiltration so as to comprehensively repair to soil, then by having sprayed soil remediation liquid, makes plant growth root depth leaf
Cyclopentadienyl, chlorophyll enhancing is full of nutrition, has restored genuineness；The pollution in soil, low-carbon environment-friendly are reduced, water, loam do not flow
It loses；Water conservation and the fertilizer-preserving ability for improving soil, make soil the more plant the more fertile, promote beneficial organism (such as earthworm) multiplication in soil,
Infiltration, water conservation venting capability enhancing, promotion is pellet, reduces chemical fertilizer, pesticide dosage year by year, is used in conjunction three, five years, soil ecology,
After physics, chemical property thoroughly improve, zero tillage may be implemented；And by the addition of soil conditioner, soil can be increased
Earth bulk density improves Water holding capacity of surface and insulating power, adjusts soil pH, improves soil nutrient status, (accelerates nutrient to decompose to turn
Change, improve soil fertilizer feeder capability, promotes plant production, obvious effect of increasing production, plant yield-increasing；Real improving quality, production
A big color is just, tasty and nontoxic, nuisanceless, and the natural green food of noresidue can reach green organic farm products
Standard improves the market competitiveness of agricultural product comprehensively.
(2), it is somebody's turn to do the soil remediation method based on modified attapulgite, by the way that by absorption, the collaboration work of degradation is complexed in displacement
With can effectively change the effective active state of the manganese ion in soil, the present invention can replace manganese simple substance from the compound of manganese
Out, it then is adsorbed, moreover it is possible to the function of co-ordination complex is formed with manganese ion, so that many-sided effective change is effective
The form of state manganese Metal in the soil, pulverized limestone can effectively adjust the pH value in soil, change the acidic environment in soil, are
Soil remediation manganese provides condition, and a large amount of potassium ion is contained in folium isatidis, can by the compound of the manganese in soil by manganese simple substance
It cements out, is effectively adsorbed by having magnetic bloodstone slag, reduce the bio-available Zn concentration of manganese China in the soil,
By the absorption of the processed material of pomelo peel, the accumulation ability to soil harmful components is increased, reduces the ion of manganese in the soil
Activity, so that available state manganese Metal is preferably minimized the harm of soil and crop.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
The present invention provides a kind of technical solution: a kind of soil remediation method based on modified attapulgite the following steps are included:
First embodiment
S1, recessed native raw material is taken, recessed soil is crushed by disintegrating apparatus, adds weak aqua ammonia, dioctyl sebacate solution, carbon
Sill and reparation liquid, and weak aqua ammonia is added mass fraction and mass fraction is added for 0.8-1.0%, dioctyl sebacate solution
For 1.0-1.2%, carbon-based material addition mass fraction is 0.8-1.5% and reparation liquid addition mass fraction is 0.2-0.3%,
Here the ammonium hydroxide added is the ammonium hydroxide after dilution, mainly avoids ammonium hydroxide to surface soil alkalinity；
S2, by S1 weak aqua ammonia be added mass fraction be 0.8-1.0%, dioctyl sebacate solution be added mass fraction be
1.0-1.2% and carbon-based material addition mass fraction are 0.8-1.5% and repair liquid mass fraction is added to be that 0.2-0.3% is placed
It to the inside of mixing machine, is mixed by mixing machine, then is filtered by filter plant, impregnated in zinc acetate solution
12-20 hours, finally liquid is filtered, the inside for placing into drying oven is dried, then the material for making clothes after drying is fallen
By pulverizer the soil-repairing agent that size is 4-6 mesh is made in material for making clothes by the inside for entering pulverizer, and it is 4-6 purpose that size, which is made,
Soil-repairing agent is primarily to facilitate soil-repairing agent repairing to soil more for a long time, and the addition for the step of filtering, main
If being filtered to mixed recessed soil, the liquid in recessed soil is reduced, the ingredient for carrying out ensuring material for making clothes is mainly to try to, prevents
To below the step of impact；
S3, below upper soll layer 400-600mm depth location, pour into the soil-repairing agent in the S2, formed with a thickness of
The soil remediation oxidant layer of 5-15mm；
S4, pulverized limestone, sodium bicarbonate, bloodstone slag, pomelo peel processed material and Chinese medical extract are taken, each component content is pulverized limestone
6-9 parts, 4-7 parts of sodium bicarbonate, 3-6 parts of bloodstone slag, 8-12 parts of pomelo peel processed material, 7-13 parts of Chinese medical extract, by lime
6-9 parts of powder, 4-7 parts of sodium bicarbonate, 3-6 parts of bloodstone slag, 8-12 parts of pomelo peel processed material, 7-13 parts of Chinese medical extract be placed into
The inside of mixing machine, is mixed by mixing machine, forms soil conditioner, then soil conditioner is uniformly sprinkled upon to the soil
It repairs in oxidant layer, forms soil improvement layer, the component part of Chinese medical extract is wormwood leaf 37% -47%, castor leaf herein
29% -39%, after Rhizoma Chuanxiong 13% -23%, garlic 1% -11% mix, medicinal powder is made, mainly improves the sterilization of soil
Function；
S5, again by ethyl orthosilicate and water according to the volume ratio of 10-20:100, then the inside of mixing machine is put into, by mixed
Conjunction machine is mixed, then mixed liquid is poured into the inside of heater, then is heated by heater to liquid, heating
To boiling, nano zine oxide is added, nano zine oxide is mainly avoided to change during heating, and will boiling
Liquid and nano zine oxide be poured into the inside of mixing machine, then carry out uniformly mixed, finally uniformly spill mixed liquid
On the soil improvement layer；
S6, it is formed by soil remediation oxidant layer in S5, continues the soil-repairing agent of a tiling new round, with a thickness of 5-15mm, tightly
Then carry out again S4 soil conditioner is uniformly sprinkled upon in the soil remediation oxidant layer and S5 boiling liquid is uniformly sprinkled upon it is described
In soil remediation oxidant layer.
It includes organic spiral vermicelli, talcum powder, sodium bicarbonate, low-carbon bacillus subtilis and distillation that liquid is repaired in the S1
Water, each component content are as follows: organic spiral vermicelli 8-10 parts, 8-10 parts of talcum powder, 5-8 parts of sodium bicarbonate, low-carbon bacillus subtilis
16-22 parts and distilled water 30-50 parts, by organic spiral vermicelli 8-10 parts, 8-10 parts of talcum powder, 5-8 parts of sodium bicarbonate, low-carbon withered grass
16-22 parts of bacillus and distilled water 30-50 part are placed into the inside of mixing machine, are mixed by mixing machine, form reparation
Liquid.
Carbon-based material in the S1 is flyash, charcoal, graphene or active carbon, due to different carbon-based materials
Source is different, preparation method is different, and physicochemical property has very big difference, such as porosity, specific surface area, constituent side
Face；Flyash is in forming process, by the impact of bulk gas, it is made a large amount of holes occur, forms cellular microcosmic shape
State, so that flyash bulk density reduces, porosity increases, and has very big specific surface area；Flyash is divided into F grades and C grades, and F grades
Total calcium content content in flyash is lower, is 1%-12%, is mostly used for building trade and carbon sequestration；C grades of fly ash calcium contents are high,
Up to 30% ~ 40%, it is acid mine drainage and the potential neutralizer of acid soil, most flyash is in alkalinity；Charcoal master
Will be by aromatic hydrocarbon and simple substance carbon or the carbon with graphite-structure forms, typically contain 60% or more carbon；It is rich in
More oxygen-content active group is contained on pore structure, biggish specific surface area and surface；In addition, charcoal has cation exchange
The characteristics such as amount is high, show alkalinity, surface is negatively charged；Graphene is a kind of single layer of carbon atom structure in honeycomb arrangement, is had
Excellent physical and chemical performance can adsorb and be desorbed various atoms and molecule；The dilute thickness of graphite is thin, surfacing；Due to it
Matter is soft, and deposition will form a large amount of folds in substrate, can be displayed graphite is dilute according to fold；Active carbon is a kind of porous
Carbon, bulk density is low, large specific surface area, has very strong absorption property, is widely used in sewage treatment, purifying drinking water, takes off
The fields such as sulphur denitration, indoor air purification；And carbon-based material have high porosity, huge specific surface area, hydrophobicity and solely
The features such as structural form of spy, they are to many strong-hydrophobicities and nonpolar organic pollutants (such as PAHs, PCBs, dioxin etc.)
There is very strong absorption affinity, but in view of cost, acquiring way and treated recycling problem, therefore selects by weight
Flyash is added in the soil of metallic pollution, it can be with the huge sum of money in curing soil using the quality and porous structure property of flyash
Belong to, reduces the harm to plant；Charcoal is added in soil simultaneously, by the direct rehabilitating soil of its own property, enhances soil
The activity of middle microorganism, and then enhance microorganism to the degradation capability of organic contaminants in soil, it more rapid and better repairs and gets dirty
Soil is contaminated, application of the flyash in improvement soil has very wide prospect, can improve soil physico-chemical property and biology
Learn property；After flyash is manured into soil, the physicochemical property of soil can be improved, improve soil nutrient status；Flyash is as soil
Earth modifying agent can increase the soil weight, improve Water holding capacity of surface and insulating power, adjust soil pH, improve soil nutrient
Situation；Fly ash grain composition is mostly fine glass particles, and density is small, hole is big, is equivalent to sand soil；By appropriate fine coal
Ash applies, and into clayey soil, on the one hand can optimize soil particle granularmetric composition, improve soil texture；On the other hand, can change
Kind soil itself agronomic properties；Some researches show that when using volume as benchmark (volume ratio), the bulk density of soil can be with flyash
Addition and increase, until flyash adding rate reach 20%, be more than that this numerical value can then decline；In addition, in flyash
Silicate mineral and carbon granule have porosity, are that can be used as gas, water not available for the silicates mineral of soil itself
Divide and " repository " of nutriment, the soil with flyash processing are also more easily broken (loose), and is not so good as not when dry
The soil of processing is solid, while water and root can be promoted to penetrate into hard/close soil horizon, after flyash is manured into soil, pH value
Variation degree depends on initial pH value, flyash pH value, buffering power of soil and the flyash neutralising capacity of soil；There is research to send out
It is existing, the every increase 3.1%(weight percent of flyash in characteristic of acid red soil) when, pH rises 0.1；Islam, Shriful's is small
In examination experiment, it was demonstrated that flyash can effectively increase clay intensity, and compression strength highest increases by 5%；Contain iron, manganese in flyash
Equal nutrients, can provide nutrient, to improve crop yield for plant growth；Influence of the flyash to retention capacity of soil
The specific form and microstructure of flyash make it have good water holding and water storage function；Meanwhile flyash is with stable
Fuel factor, weight loss is less, this is the ideal conditions for maintaining soil moisture level；In the experiment of Kumar, Kaushal et al.
Show that flyash weightlessness is 0.26% at 100 DEG C ~ 400 DEG C, and at 400 DEG C ~ 700 DEG C, total weight loss 1.01%, it was demonstrated that
Flyash has stable fuel factor；Although flyash is mainly the nature of glass, have largely from the former ash surface that burner hearth comes out
Si-O-Si key, after acting on water, a large amount of hydroxyl will occur in particle surface, make it have apparent hydrophily；Flyash master
If influencing the activity of Soil Microorganism and enzyme indirectly by influencing soil physico-chemical property, its own physicochemical property may also
It will affect Soil Microorganism growth and breeding；Flyash is applied with the ratio for accounting for soil quality 2% in red soil, can obviously be mentioned
The respiration of high red soil promotes enzymatic conversion, improves phosphatase isoreactivity, enhances the bioactivity of microorganism, be conducive to soil
In various biochemical reactions progress, and have inhibiting effect to peroxidase etc.；Influence of the flyash to microbes biomass by when
Between length influence, and dramatically increased with the presence of plant, carbon-based material has wide application in soil improvement
Prospect；Flyash, charcoal, graphene, in four kinds of carbon-based materials of active carbon, the physicochemical property of flyash and charcoal is preferably
It is applied in soil improvement and in repairing；Flyash and charcoal can improve soil physico-chemical property, enhance Unconfined Compression Strength of Soil, mention
High water holding capacity, meanwhile, Soil Microorganism can be affected indirectly, wherein its own magnetism of utilization of fly ash, changed certain thin
The activity of bacterium enzyme, and charcoal provides growth and breeding place then with its unique pore structure for microorganism, all reaches to soil
The purpose of earth reparation and improvement.
Mixed mixing machine is cooled down again and is reacted 10-20 minutes after nano zine oxide is added in the S5, then will
Liquid after cooling and reaction is uniformly sprinkled upon in the soil remediation oxidant layer, herein that mixed liquid is cooling, mainly
The addition for guaranteeing nano zine oxide, can sufficiently merge in liquid, further increase the effect of soil remediation.
Recessed soil is ground into the particle of 16-32 mesh by the disintegrating apparatus in the S1, and recessed soil is ground into 16-32 mesh herein
Particle, mainly guarantee S1 in recessed soil can preferably be mixed with liquid.
The internal temperature of mixing machine in the S2 is 60-70 degrees Celsius, and the incorporation time 5-7 of the inside of mixing machine
Hour.
The incorporation time of mixing machine in the S4 is 1-2 hours, and the internal temperature of mixing machine is 40 to 60 Celsius
Degree.
Boiling liquid in the S5 is sprinkled upon the dosage of soil remediation oxidant layer are as follows: 200-400 milliliters every cubic metre.
When work, recessed native raw material S1, is taken, recessed soil is crushed by disintegrating apparatus, adds weak aqua ammonia, decanedioic acid two
Monooctyl ester solution, carbon-based material and reparation liquid, and it is 0.8-1.0%, dioctyl sebacate solution that mass fraction, which is added, in weak aqua ammonia
Addition mass fraction, which is 1.0-1.2%, carbon-based material addition mass fraction is 0.8-1.5% and repairs liquid addition mass fraction is
0.2-0.3%；S2, the weak aqua ammonia in S1 is added to mass fraction for 0.8-1.0%, dioctyl sebacate solution addition quality point
Number is 1.0-1.2% and carbon-based material addition mass fraction is 0.8-1.5% and reparation liquid addition mass fraction is 0.2-0.3%
It is placed into the inside of mixing machine, is mixed by mixing machine, then is filtered by filter plant, is soaked in zinc acetate solution
Liquid, is finally filtered by bubble 12-20 hours, and the inside for placing into drying oven is dried, then by the material for making clothes after drying
By pulverizer the soil-repairing agent that size is 4-6 mesh is made in material for making clothes by the inside for pouring into pulverizer；S3, upper soll layer with
The depth location of lower 400-600mm pours into the soil-repairing agent in the S2, forms the soil-repairing agent with a thickness of 5-15mm
Layer；S4, pulverized limestone, sodium bicarbonate, bloodstone slag, pomelo peel processed material and Chinese medical extract are taken, each component content is pulverized limestone
6-9 parts, 4-7 parts of sodium bicarbonate, 3-6 parts of bloodstone slag, 8-12 parts of pomelo peel processed material, 7-13 parts of Chinese medical extract, by lime
6-9 parts of powder, 4-7 parts of sodium bicarbonate, 3-6 parts of bloodstone slag, 8-12 parts of pomelo peel processed material, 7-13 parts of Chinese medical extract be placed into
The inside of mixing machine, is mixed by mixing machine, forms soil conditioner, then soil conditioner is uniformly sprinkled upon to the soil
It repairs in oxidant layer, forms soil improvement layer；S5, again by ethyl orthosilicate and water according to the volume ratio of 10-20:100, then put into
It to the inside of mixing machine, is mixed by mixing machine, then mixed liquid is poured into the inside of heater, then pass through heating
Machine heats liquid, is heated to boiling, and adds nano zine oxide, and the liquid of boiling is poured into nano zine oxide
It to the inside of mixing machine, then carries out uniformly mixed, finally mixed liquid is uniformly sprinkled upon on the soil improvement layer.
Second embodiment
S1, recessed native raw material is taken, recessed soil is crushed by disintegrating apparatus, adds weak aqua ammonia, dioctyl sebacate solution, carbon
Sill and reparation liquid, and weak aqua ammonia is added mass fraction and mass fraction is added for 0.8-1.0%, dioctyl sebacate solution
For 1.0-1.2%, carbon-based material addition mass fraction is 2-5% and reparation liquid addition mass fraction is 1-2%, typically contains
60% or more carbon；More oxygen-content active base is contained on its pore structure rich in, biggish specific surface area and surface
Group has excellent physical and chemical performance, can adsorb and be desorbed various atoms and molecule, effective solution pore problem, solution
Certainly deposition will form a large amount of folds in substrate；
S2, by S1 weak aqua ammonia be added mass fraction be 0.8-1.0%, dioctyl sebacate solution be added mass fraction be
1.0-1.2% and carbon-based material addition mass fraction are 0.8-1.5% and repair liquid mass fraction is added to be that 0.2-0.3% is placed
It to the inside of mixing machine, is mixed by mixing machine, then is filtered by filter plant, impregnated in zinc acetate solution
12-20 hours, finally liquid is filtered, the inside for placing into drying oven is dried, then the material for making clothes after drying is fallen
Material for making clothes is made the soil-repairing agent that size is 6-8 mesh by pulverizer, can effectively improve soil by the inside for entering pulverizer
Renovation agent ensure that the crop producing power of soil to the effect of soil remediation；
S3, below upper soll layer 200-400mm depth location, pour into the soil-repairing agent in the S2, formed with a thickness of
The soil remediation oxidant layer of 5-8mm, improves soil remediation, and the area of soil and the reparation of equivalent soil-repairing agent further increases
The effect repaired；
S4, pulverized limestone, sodium bicarbonate, bloodstone slag, pomelo peel processed material and Chinese medical extract are taken, each component content is pulverized limestone
10-15 parts, 4-7 parts of sodium bicarbonate, 3-6 parts of bloodstone slag, 8-12 parts of pomelo peel processed material, 7-13 parts of Chinese medical extract, by stone
6-9 parts of ashes, 5-10 parts of sodium bicarbonate, 3-6 parts of bloodstone slag, 8-12 parts of pomelo peel processed material, 7-13 parts of Chinese medical extract put
The inside for setting mixing machine, is mixed by mixing machine, forms soil conditioner, then soil conditioner is uniformly sprinkled upon described
In soil remediation oxidant layer, soil improvement layer is formed, the increase of sodium bicarbonate is heated easy so that soil property in room temperature is stablized
It decomposes, is gradually decomposed at 50 DEG C or more, lose carbon dioxide completely at 270 DEG C, it is unchanged in dry air, moist empty
It is slowly deliquesced in gas；
S5, again by ethyl orthosilicate and water according to the volume ratio of 20-25:100, then the inside of mixing machine is put into, by mixed
Conjunction machine is mixed, then mixed liquid is poured into the inside of heater, then is heated by heater to liquid, heating
To boiling, nano zine oxide is added, and the liquid of boiling and nano zine oxide are poured into the inside of mixing machine, then carry out
It is uniformly mixed, finally mixed liquid is uniformly sprinkled upon on the soil improvement layer；
S6, it is formed by the good cladding of land reform in S5, continues the soil-repairing agent of a tiling new round, with a thickness of 5-8mm, and then
Carry out again S4 soil conditioner is uniformly sprinkled upon in the soil remediation oxidant layer and S5 boiling liquid is uniformly sprinkled upon to the soil
It repairs in oxidant layer.
3rd embodiment
S1, recessed native raw material is taken, recessed soil is crushed by disintegrating apparatus, adds weak aqua ammonia, dioctyl sebacate solution, carbon
Sill and reparation liquid, and weak aqua ammonia is added mass fraction and mass fraction is added for 0.8-1.0%, dioctyl sebacate solution
For 1.0-1.2%, carbon-based material addition mass fraction is 5-10% and reparation liquid addition mass fraction is 1-3%, can improve
Soil physico-chemical property enhances Unconfined Compression Strength of Soil, improves water holding capacity, meanwhile, Soil Microorganism can be affected indirectly, wherein
Its own is magnetic for utilization of fly ash, changes the activity of certain bacterial enzymes, and charcoal is then with its unique pore structure, is micro- life
Object provides growth and breeding place, all achievees the purpose that soil remediation and improvement；
S2, by S1 weak aqua ammonia be added mass fraction be 0.8-1.0%, dioctyl sebacate solution be added mass fraction be
1.0-1.2% and carbon-based material addition mass fraction are 0.8-1.5% and repair liquid mass fraction is added to be that 0.2-0.3% is placed
It to the inside of mixing machine, is mixed by mixing machine, then is filtered by filter plant, impregnated in zinc acetate solution
12-20 hours, finally liquid is filtered, the inside for placing into drying oven is dried, then the material for making clothes after drying is fallen
Material for making clothes is made the soil-repairing agent that size is 5-7 mesh by pulverizer, can make soil-repairing agent by the inside for entering pulverizer
Adapt to the reparation of different area soil；
S3, below upper soll layer 200-400mm depth location, pour into the soil-repairing agent in the S2, formed with a thickness of
The soil remediation oxidant layer of 5-10mm, effectively raises the comprehensive of soil remediation, is applicable in the reparation of different location soil；
S4, pulverized limestone, sodium bicarbonate, bloodstone slag, pomelo peel processed material and Chinese medical extract are taken, each component content is pulverized limestone
12-17 parts, 4-7 parts of sodium bicarbonate, 3-6 parts of bloodstone slag, 8-12 parts of pomelo peel processed material, 7-13 parts of Chinese medical extract, by stone
6-9 parts of ashes, 7-15 parts of sodium bicarbonate, 3-6 parts of bloodstone slag, 8-12 parts of pomelo peel processed material, 7-13 parts of Chinese medical extract put
The inside for setting mixing machine, is mixed by mixing machine, forms soil conditioner, then soil conditioner is uniformly sprinkled upon described
In soil remediation oxidant layer, soil improvement layer is formed；
S5, again by ethyl orthosilicate and water according to the volume ratio of 5-15:100, then put into the inside of mixing machine, pass through mixing
Machine is mixed, then mixed liquid is poured into the inside of heater, then is heated by heater to liquid, is heated to
Boiling adds nano zine oxide, and the liquid of boiling and nano zine oxide is poured into the inside of mixing machine, then mixed
It closes uniformly, finally mixed liquid is uniformly sprinkled upon on the soil improvement layer, the intensity and water resistance of soil can be improved；
S6, it is formed by the good cladding of land reform in S5, continues the soil-repairing agent of a tiling new round, with a thickness of 10-20mm, immediately
Carry out again S4 soil conditioner is uniformly sprinkled upon in the soil remediation oxidant layer and S5 boiling liquid is uniformly sprinkled upon to the soil
Earth is repaired in oxidant layer.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of soil remediation method based on modified attapulgite, which comprises the following steps:
S1, recessed native raw material is taken, recessed soil is crushed by disintegrating apparatus, adds weak aqua ammonia, dioctyl sebacate solution, carbon
Sill and reparation liquid, and weak aqua ammonia is added mass fraction and mass fraction is added for 0.8-1.0%, dioctyl sebacate solution
For 1.0-1.2%, carbon-based material addition mass fraction is 0.8-1.5% and reparation liquid addition mass fraction is 0.2-0.3%；
S2, by S1 weak aqua ammonia be added mass fraction be 0.8-1.0%, dioctyl sebacate solution be added mass fraction be
1.0-1.2% and carbon-based material addition mass fraction are 0.8-1.5% and repair liquid mass fraction is added to be that 0.2-0.3% is placed
It to the inside of mixing machine, is mixed by mixing machine, then is filtered by filter plant, impregnated in zinc acetate solution
12-20 hours, finally liquid is filtered, the inside for placing into drying oven is dried, then the material for making clothes after drying is fallen
By pulverizer the soil-repairing agent that size is 4-6 mesh is made in material for making clothes by the inside for entering pulverizer；
S3, below upper soll layer 400-600mm depth location, pour into the soil-repairing agent in the S2, formed with a thickness of
The soil remediation oxidant layer of 5-15mm；
S4, pulverized limestone, sodium bicarbonate, bloodstone slag, pomelo peel processed material and Chinese medical extract are taken, each component content is pulverized limestone
6-9 parts, 4-7 parts of sodium bicarbonate, 3-6 parts of bloodstone slag, 8-12 parts of pomelo peel processed material, 7-13 parts of Chinese medical extract, by lime
6-9 parts of powder, 4-7 parts of sodium bicarbonate, 3-6 parts of bloodstone slag, 8-12 parts of pomelo peel processed material, 7-13 parts of Chinese medical extract be placed into
The inside of mixing machine, is mixed by mixing machine, forms soil conditioner, then soil conditioner is uniformly sprinkled upon to the soil
It repairs in oxidant layer, forms soil improvement layer；
S5, again by ethyl orthosilicate and water according to the volume ratio of 10-20:100, then the inside of mixing machine is put into, by mixed
Conjunction machine is mixed, then mixed liquid is poured into the inside of heater, then is heated by heater to liquid, heating
To boiling, nano zine oxide is added, and the liquid of boiling and nano zine oxide are poured into the inside of mixing machine, then carry out
It is uniformly mixed, finally mixed liquid is uniformly sprinkled upon on the soil improvement layer；
S6, it is formed by the good cladding of land reform in S5, continues the soil-repairing agent of a tiling new round, with a thickness of 5-15mm, immediately
Carry out again S4 soil conditioner is uniformly sprinkled upon in the soil remediation oxidant layer and S5 boiling liquid is uniformly sprinkled upon to the soil
Earth is repaired in oxidant layer.
2. a kind of soil remediation method based on modified attapulgite according to claim 1, it is characterised in that: repaired in the S1
Multiple liquid includes organic spiral vermicelli, talcum powder, sodium bicarbonate, low-carbon bacillus subtilis and distilled water, each component content are as follows: organic
8-10 parts of spiral vermicelli, 8-10 parts of talcum powder, 5-8 parts of sodium bicarbonate, 16-22 parts of low-carbon bacillus subtilis and distilled water 30-50
Part, by organic spiral vermicelli 8-10 parts, 8-10 parts of talcum powder, 5-8 parts of sodium bicarbonate, 16-22 parts of low-carbon bacillus subtilis and steaming
30-50 parts of the distilled water inside for being placed into mixing machine, are mixed by mixing machine, are formed and are repaired liquid.
3. a kind of soil remediation method based on modified attapulgite according to claim 1, it is characterised in that: in the S1
Carbon-based material is flyash, charcoal, graphene or active carbon.
4. a kind of soil remediation method based on modified attapulgite according to claim 1, it is characterised in that: add in the S5
Mixed mixing machine is cooled down again and is reacted 10-20 minutes after entering nano zine oxide, then by the liquid after cooling and reaction
It is uniformly sprinkled upon in the soil remediation oxidant layer.
5. a kind of soil remediation method based on modified attapulgite according to claim 1, it is characterised in that: in the S1
Recessed soil is ground into the particle of 16-32 mesh by disintegrating apparatus.
6. a kind of soil remediation method based on modified attapulgite according to claim 1, it is characterised in that: in the S2
The internal temperature of mixing machine is 60-70 degrees Celsius, and the incorporation time of the inside of mixing machine 5-7 hours.
7. a kind of soil remediation method based on modified attapulgite according to claim 1, it is characterised in that: in the S4
The incorporation time of mixing machine is 1-2 hours, and the internal temperature of mixing machine is 40 to 60 degrees Celsius.
8. a kind of soil remediation method based on modified attapulgite according to claim 1, it is characterised in that: in the S5
Boiling liquid is sprinkled upon the dosage of soil remediation oxidant layer are as follows: 200-400 milliliters every cubic metre.
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