CN107243509A - A kind of soil remediation method suitable for landscape ecosystem - Google Patents
A kind of soil remediation method suitable for landscape ecosystem Download PDFInfo
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- CN107243509A CN107243509A CN201710535646.3A CN201710535646A CN107243509A CN 107243509 A CN107243509 A CN 107243509A CN 201710535646 A CN201710535646 A CN 201710535646A CN 107243509 A CN107243509 A CN 107243509A
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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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- 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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- 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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- 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 belongs to landscape ecosystem technical field of soil remediation, more particularly to a kind of soil remediation method suitable for landscape ecosystem.Method is simple, and repairing effect is good, and repairing efficiency is short, can be directly used for Landscape construction, and plant survival rate is high, and landscape is strong；Metallic element in soil can be complexed by humic acid, improve the crumb structure of soil, adjust the situations such as soil pH value He Shui, fertilizer, air and heat, improve soil exchange capacity and retain water and nutrients ability, promote microbial activities, accelerate the decomposition and inversion of organic substance, be easy to plant absorption nutritional ingredient；The effective absorbed metal complex of bamboo fibre powder energy, reduces the heavy metal concentration in soil；Charcoal can effectively improve the stability of nitrogenous fertilizer, phosphate fertilizer utilization efficiency and fertilizer quality, improve the ecological environment of soil；Raw material sources are wide, and production cost is low, does not result in the secondary pollution of soil, also will not produce pollution to surrounding environment, repairing improves soil environment, low value resource rational utilization can be achieved.
Description
Technical field
The invention belongs to landscape ecosystem technical field of soil remediation, more particularly to it is a kind of suitable for landscape ecosystem
Soil remediation method.
Background technology
Landscape ecosystem is an organic system, natural ecosystems and human ecological system is superimposed answers
Close the ecosystem.Green plants is as the chief component in landscape ecosystem, and soil grows as green plants
Important medium, at present, national soil environment situation gross contamination is more serious, the human activity such as industry and mining, agricultural and soil
Earth environmental pH height is to cause soil pollution or exceeded main cause.Pollution modes universal at present are heavy metal pollution, main
It is cadmium, nickel, copper, arsenic, mercury, lead etc. to want pollutant.The reason for causing metallic pollution be mainly mining, metal smelt, electroplating industry,
Chemical industry, intermetallic composite coating, electronics industry and waste electrical equipment reclaim etc. field produce and discharge heavy metal contaminants enter surface water,
After in lower water and air, these heavy metals are finally come together in soil again, are caused heavy metal in soil too high levels, are caused soil
Heavy metal in heavy metal pollution, soil can enter human body by food chain, when internal heavy metal is accumulated to a certain extent
Various human body diseases will be triggered.Therefore need to maintain the integrality and stability of landscape ecosystem to need to keep the knot of soil
Structure and soil fertility, the soil destroyed for soil texture carry out reparation be maintain landscape ecosystem integrality and
Stability is highly desirable to.
The content of the invention
Goal of the invention：In order to overcome problem above, it is an object of the invention to provide a kind of soil suitable for landscape ecosystem
Earth restorative procedure.
Technical scheme：A kind of soil remediation method suitable for landscape ecosystem of the present invention, including following methods
Step：
（1）Thermophilic type aerobic bacteria is injected by the biodegradation in soil to be repaired to soil region to be repaired；
（2）Air or oxygen is injected to soil region to be repaired；
（3）According to 30kg/ mus of amounts biological soil renovation agent, described biological soil renovation agent are added to soil region to be repaired
Including attapulgite, diatomite, humic acid, charcoal, calcium magnesium phosphate, potassium dihydrogen phosphate, quick lime, bamboo fibre powder, hydroxyl fourth
Base cellulose；
（4）To soil region spray water to be repaired to the 60-80% of soil saturation water-holding capacity；
（5）Moisture loss is prevented with film covering, some blow vents are opened up on film, air is injected in every circumference soil, and
The moisture that scatters and disappears, the reparation for completing soil in 30-45 days are supplemented in time.
In addition, described thermophilic type aerobic bacteria is cellulolytic bacterium and slime bacteria, the filament decomposability is thin
The ratio of bacterium and slime bacteria is 1:3-4.
Separately have, described biological soil renovation agent includes the component of following parts by weight：Organically-modified attapulgite-montmorillonite
15-20 parts, 3-5 parts of diatomite, 10-20 parts of humic acid, 5-10 parts of charcoal, 20-30 parts of calcium magnesium phosphate, potassium dihydrogen phosphate 8-12
Part, 10-15 parts of quick lime, 20-30 parts of bamboo fibre powder, 1-3 parts of hydroxybutyl cellulose.
Also, step is made by the following method for described organically-modified attapulgite-montmorillonite：Attapulgite sample is washed
Washed after the HCl solution 600r/min high-speed stirreds 1h for washing the 5mol/L that 2 times of weight is added after being ground after drying to nothing
Chloride residue dries ground 200 mesh sieve and obtains attapulgite powder；Montmorillonite sample is added into 1mol/L Na2CO3Solution
Separation takes supernatant after 600r/min high-speed stirreds 2h, adds 1mol/L NaCl solution flocculation sediments, takes washing of precipitate to without chlorine
Ion residues, ground 200 mesh sieve obtains montmorillonite powder after drying；Attapulgite powder, montmorillonite powder are mixed to get mixed
Close and the cationic surfactant Dodecydimethylammonium bronides of 10 times of weight are added after powder be mixed evenly and obtain
Organically-modified attapulgite-montmorillonite suspension, rotating speed is to cross 80 mesh sieves after 6000r/min centrifugations 15min takes precipitation drying and crushing
After obtain organically-modified attapulgite-montmorillonite powder.
Further, by the following method prepared by step for described charcoal：
1）Paddy rice stalk, rape straw, cornstalk are cut into after the list structure of 10cm length and add the stirring mixing of 5mol/L HCl solutions
It is fitted into crucible to be placed in Muffle furnace after uniform and is dehydrated in 180-200 DEG C after pump-down process 1-2h and in 500-550 DEG C of high temperature
Lower charing 1-1.5h；
2）Step 1）High temperature carbonization processing after be cooled to water filtration after room temperature dry crushed again with pulverizer after cross 80 mesh sieves obtain
To charcoal powder.
Again, described bamboo fibre powder is prepared by the following method：15 times of weight of addition after strip are cut into bamboo segmentation
Limewash drying is cleaned after sofening treatment 5h and is cleaned again with the dilute HCl solutions of 1mol/L to pH value be that 5-6 is cleaned with water again
Pulverizer crushed 80 mesh sieves and obtains bamboo fibre powder after 70 DEG C of drying afterwards.
Further, described humic acid is ammonium nitro-humate.
In addition, described biological soil renovation agent preparation method includes following methods step：
1）After preparing organically-modified attapulgite-montmorillonite, charcoal, bamboo fibre powder respectively each powder is weighed according to formula ratio
It is well mixed to obtain mixed powder 1；
2）Weighed according to formula after quick lime crushed 80 mesh sieves and be added to step 1）In mixed powder 1 stirring mix to obtain mixed powder
2；
3）To step 2）In mixed powder 2 in add formula ratio diatomite, humic acid, calcium magnesium phosphate, potassium dihydrogen phosphate and hydroxyl
Butyl cellulose, is subsequently placed in after mixing 15-20min in blender and obtains biological soil renovation agent.
Above-mentioned technical proposal can be seen that the present invention and have the advantages that：It is of the present invention to be suitable to landscape ecological
The soil remediation method of system, compared with prior art, has the advantages that：Soil remediation method of the present invention, it is non-
It is adapted to the soil of landscape ecosystem, method is simple, and repairing effect is good, and repairing efficiency is short, can be directly used for Landscape construction, plants
Thing survival rate is high, and landscape is strong；Given birth to using the soil of the compositions such as organically-modified attapulgite-montmorillonite, charcoal and humic acid
Metallic element in soil can be complexed by thing renovation agent, humic acid, improve the crumb structure of soil, regulation soil pH value and soil
The situations such as reclaimed water, fertilizer, air and heat, improve the retain water and nutrients ability of soil exchange capacity and soil, promote soil microbial activity,
Accelerate the decomposition and inversion of organic substance, be easy to plant absorption nutritional ingredient；The effective absorbed metal complex of bamboo fibre powder energy,
Reduce the heavy metal concentration in soil；Charcoal can effectively improve the stability of nitrogenous fertilizer, phosphate fertilizer utilization efficiency and fertilizer quality,
Chemical fertilizer application is reduced, improves the ecological environment of soil, solves to realize while the environmental pollution brought after straw burning
Growth of agricultural efficiency；Raw material sources are wide, and production cost is low, does not result in the secondary pollution of soil, also surrounding environment will not be produced dirty
Dye, repairing improves soil environment, and low value resource rational utilization can be achieved.
Embodiment
With reference to specific embodiment, the present invention is furture elucidated.
Embodiment 1
A kind of soil remediation method suitable for landscape ecosystem described in the present embodiment, including following methods step：
（1）Thermophilic type aerobic bacteria-cellulolytic bacterium and slime bacteria, the filament are injected to soil region to be repaired
The ratio of decomposability bacterium and slime bacteria is 1:3, by the biodegradation in soil to be repaired；
（2）Air or oxygen is injected to soil region to be repaired；
（3）According to 30kg/ mus of amounts biological soil renovation agent, described biological soil renovation agent are added to soil region to be repaired
Including organic attapulgite modified -15 parts of montmorillonite, 3 parts of diatomite, 10 parts of ammonium nitro-humate, 5 parts of charcoal, calcium magnesium phosphate
20 parts, 8 parts of potassium dihydrogen phosphate, 10 parts of quick lime, 20 parts of bamboo fibre powder, 1 part of hydroxybutyl cellulose；
（4）To soil region spray water to be repaired to the 60% of soil saturation water-holding capacity；
（5）Moisture loss is prevented with film covering, some blow vents are opened up on film, air is injected in every circumference soil, and
The moisture that scatters and disappears, the reparation for completing soil in 45 days are supplemented in time.
Step is made by the following method for organically-modified attapulgite-montmorillonite described in the present embodiment：By attapulgite
Washed after the HCl solution 600r/min high-speed stirreds 1h for the 5mol/L that 2 times of weight is added after being ground after sample washing and drying
Wash to without ground 200 mesh sieve of Chloride residue drying and obtain attapulgite powder；Montmorillonite sample is added into 1mol/L Na2CO3
Separation takes supernatant after solution 600r/min high-speed stirreds 2h, adds 1mol/L NaCl solution flocculation sediments, takes washing of precipitate extremely
Without Chloride residue, ground 200 mesh sieve obtains montmorillonite powder after drying；Attapulgite powder, montmorillonite powder are mixed
The cationic surfactant Dodecydimethylammonium bronides that 10 times of weight are added after to mixed-powder are mixed evenly
Organically-modified attapulgite-montmorillonite suspension is obtained, rotating speed is to cross 80 after 6000r/min centrifugations 15min takes precipitation drying and crushing
Organically-modified attapulgite-montmorillonite powder is obtained after mesh sieve.
By the following method prepared by step for charcoal described in the present embodiment：
1）Paddy rice stalk, rape straw, cornstalk are cut into after the list structure of 10cm length and add the stirring mixing of 5mol/L HCl solutions
Is fitted into after uniform in crucible and is placed in Muffle furnace in 180 DEG C after dehydration pump-down process 2h and in carbonizing 1.5h under 500 DEG C of high temperature；
2）Step 1）High temperature carbonization processing after be cooled to water filtration after room temperature dry crushed again with pulverizer after cross 80 mesh sieves obtain
To charcoal powder.
Bamboo fibre powder described in the present embodiment is prepared by the following method：Bamboo segmentation is cut into after strip and adds 15 times
It is 5 clear with water again that the limewash of weight, which drying is cleaned after sofening treatment 5h and is cleaned again with the dilute HCl solutions of 1mol/L to pH value,
Pulverizer crushed 80 mesh sieves and obtains bamboo fibre powder after 70 DEG C of drying after washing.
Biological soil renovation agent preparation method described in the present embodiment includes following methods step：
1）After preparing organically-modified attapulgite-montmorillonite, charcoal, bamboo fibre powder respectively each powder is weighed according to formula ratio
It is well mixed to obtain mixed powder 1；
2）Weighed according to formula after quick lime crushed 80 mesh sieves and be added to step 1）In mixed powder 1 stirring mix to obtain mixed powder
2；
3）To step 2）In mixed powder 2 in add formula ratio diatomite, humic acid, calcium magnesium phosphate, potassium dihydrogen phosphate and hydroxyl
Butyl cellulose, is subsequently placed in after mixing 15min in blender and obtains biological soil renovation agent.
Embodiment 2
A kind of soil remediation method suitable for landscape ecosystem described in the present embodiment, including following methods step：
（1）Thermophilic type aerobic bacteria-cellulolytic bacterium and slime bacteria, the filament are injected to soil region to be repaired
The ratio of decomposability bacterium and slime bacteria is 1:4, by the biodegradation in soil to be repaired；
（2）Air or oxygen is injected to soil region to be repaired；
（3）According to 30kg/ mus of amounts biological soil renovation agent, described biological soil renovation agent are added to soil region to be repaired
Include the component of following parts by weight including described biological soil renovation agent：Organically-modified 20 parts of attapulgite-montmorillonite, diatom
5 parts of soil, 20 parts of ammonium nitro-humate, 10 parts of charcoal, 30 parts of calcium magnesium phosphate, 12 parts of potassium dihydrogen phosphate, 15 parts of quick lime, bamboo are fine
Tie up 30 parts of powder, 3 parts of hydroxybutyl cellulose；
（4）To soil region spray water to be repaired to the 80% of soil saturation water-holding capacity；
（5）Moisture loss is prevented with film covering, some blow vents are opened up on film, air is injected in every circumference soil, and
The moisture that scatters and disappears, the reparation for completing soil in 30 days are supplemented in time.
Step is made by the following method for organically-modified attapulgite-montmorillonite described in the present embodiment：By attapulgite
Washed after the HCl solution 600r/min high-speed stirreds 1h for the 5mol/L that 2 times of weight is added after being ground after sample washing and drying
Wash to without ground 200 mesh sieve of Chloride residue drying and obtain attapulgite powder；Montmorillonite sample is added into 1mol/L Na2CO3
Separation takes supernatant after solution 600r/min high-speed stirreds 2h, adds 1mol/L NaCl solution flocculation sediments, takes washing of precipitate extremely
Without Chloride residue, ground 200 mesh sieve obtains montmorillonite powder after drying；Attapulgite powder, montmorillonite powder are mixed
The cationic surfactant Dodecydimethylammonium bronides that 10 times of weight are added after to mixed-powder are mixed evenly
Organically-modified attapulgite-montmorillonite suspension is obtained, rotating speed is to cross 80 after 6000r/min centrifugations 15min takes precipitation drying and crushing
Organically-modified attapulgite-montmorillonite powder is obtained after mesh sieve.
By the following method prepared by step for charcoal described in the present embodiment：
1）Paddy rice stalk, rape straw, cornstalk are cut into after the list structure of 10cm length and add the stirring mixing of 5mol/L HCl solutions
Is fitted into after uniform in crucible and is placed in Muffle furnace in 200 DEG C after dehydration pump-down process 1h and in carbonizing 1h under 550 DEG C of high temperature；
2）Step 1）High temperature carbonization processing after be cooled to water filtration after room temperature dry crushed again with pulverizer after cross 80 mesh sieves obtain
To charcoal powder.
Bamboo fibre powder described in the present embodiment is prepared by the following method：Bamboo segmentation is cut into after strip and adds 15 times
It is 6 clear with water again that the limewash of weight, which drying is cleaned after sofening treatment 5h and is cleaned again with the dilute HCl solutions of 1mol/L to pH value,
Pulverizer crushed 80 mesh sieves and obtains bamboo fibre powder after 70 DEG C of drying after washing.
Biological soil renovation agent preparation method described in the present embodiment includes following methods step：
1）After preparing organically-modified attapulgite-montmorillonite, charcoal, bamboo fibre powder respectively each powder is weighed according to formula ratio
It is well mixed to obtain mixed powder 1；
2）Weighed according to formula after quick lime crushed 80 mesh sieves and be added to step 1）In mixed powder 1 stirring mix to obtain mixed powder
2；
3）To step 2）In mixed powder 2 in add formula ratio diatomite, humic acid, calcium magnesium phosphate, potassium dihydrogen phosphate and hydroxyl
Butyl cellulose, is subsequently placed in after mixing 20min in blender and obtains biological soil renovation agent.
Embodiment 3
A kind of soil remediation method suitable for landscape ecosystem described in the present embodiment, including following methods step：
（1）Thermophilic type aerobic bacteria-cellulolytic bacterium and slime bacteria, the filament are injected to soil region to be repaired
The ratio of decomposability bacterium and slime bacteria is 1:3.5 by the biodegradation in soil to be repaired；
（2）Air or oxygen is injected to soil region to be repaired；
（3）According to 30kg/ mus of amounts biological soil renovation agent, described biological soil renovation agent are added to soil region to be repaired
Include the component of following parts by weight：Organically-modified 18 parts of attapulgite-montmorillonite, 4 parts of diatomite, 15 parts of ammonium nitro-humate,
8 parts of charcoal, 250 parts of calcium magnesium phosphate, 10 parts of potassium dihydrogen phosphate, 12 parts of quick lime, 25 parts of bamboo fibre powder, hydroxybutyl cellulose
2 parts；
（4）To soil region spray water to be repaired to the 70% of soil saturation water-holding capacity；
（5）Moisture loss is prevented with film covering, some blow vents are opened up on film, air is injected in every circumference soil, and
The moisture that scatters and disappears, the reparation for completing soil in 35 days are supplemented in time.
Step is made by the following method for organically-modified attapulgite-montmorillonite described in the present embodiment：By attapulgite
Washed after the HCl solution 600r/min high-speed stirreds 1h for the 5mol/L that 2 times of weight is added after being ground after sample washing and drying
Wash to without ground 200 mesh sieve of Chloride residue drying and obtain attapulgite powder；Montmorillonite sample is added into 1mol/L Na2CO3
Separation takes supernatant after solution 600r/min high-speed stirreds 2h, adds 1mol/L NaCl solution flocculation sediments, takes washing of precipitate extremely
Without Chloride residue, ground 200 mesh sieve obtains montmorillonite powder after drying；Attapulgite powder, montmorillonite powder are mixed
The cationic surfactant Dodecydimethylammonium bronides that 10 times of weight are added after to mixed-powder are mixed evenly
Organically-modified attapulgite-montmorillonite suspension is obtained, rotating speed is to cross 80 after 6000r/min centrifugations 15min takes precipitation drying and crushing
Organically-modified attapulgite-montmorillonite powder is obtained after mesh sieve.
By the following method prepared by step for charcoal described in the present embodiment：
1）Paddy rice stalk, rape straw, cornstalk are cut into after the list structure of 10cm length and add the stirring mixing of 5mol/L HCl solutions
It is fitted into crucible to be placed in Muffle furnace after uniform and is dehydrated in 190 DEG C after pump-down process 1.5h and in charing under 520 DEG C of high temperature
80min；
2）Step 1）High temperature carbonization processing after be cooled to water filtration after room temperature dry crushed again with pulverizer after cross 80 mesh sieves obtain
To charcoal powder.
Bamboo fibre powder described in the present embodiment is prepared by the following method：Bamboo segmentation is cut into after strip and adds 15 times
It is 6 clear with water again that the limewash of weight, which drying is cleaned after sofening treatment 5h and is cleaned again with the dilute HCl solutions of 1mol/L to pH value,
Pulverizer crushed 80 mesh sieves and obtains bamboo fibre powder after 70 DEG C of drying after washing.
Biological soil renovation agent preparation method described in the present embodiment includes following methods step：
1）After preparing organically-modified attapulgite-montmorillonite, charcoal, bamboo fibre powder respectively each powder is weighed according to formula ratio
It is well mixed to obtain mixed powder 1；
2）Weighed according to formula after quick lime crushed 80 mesh sieves and be added to step 1）In mixed powder 1 stirring mix to obtain mixed powder
2；
3）To step 2）In mixed powder 2 in add formula ratio diatomite, humic acid, calcium magnesium phosphate, potassium dihydrogen phosphate and hydroxyl
Butyl cellulose, is subsequently placed in after mixing 18min in blender and obtains biological soil renovation agent.
Using the soil remediation method described in embodiment 1-3, the soil of landscape ecosystem is especially suitable for, method letter
Single, cost is low, does not result in secondary pollution, repairing efficiency is short, soil to be repaired is carried out after repair process, at 30-45 days
Between can complete to repair, the ecological environment of soil repaired, and soil granular structure is improved, and can be directly used for landscape battalion
Make, plant survival rate is high, landscape is strong.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvement can also be made, these improvement also should be regarded as the present invention's
Protection domain.
Claims (8)
1. a kind of soil remediation method suitable for landscape ecosystem, it is characterised in that：Including following methods step：
（1）Thermophilic type aerobic bacteria is injected by the biodegradation in soil to be repaired to soil region to be repaired；
（2）Air or oxygen is injected to soil region to be repaired；
（3）According to 30kg/ mus of amounts biological soil renovation agent, described biological soil renovation agent are added to soil region to be repaired
Including attapulgite, diatomite, humic acid, charcoal, calcium magnesium phosphate, potassium dihydrogen phosphate, quick lime, bamboo fibre powder, hydroxyl fourth
Base cellulose；
（4）To soil region spray water to be repaired to the 60-80% of soil saturation water-holding capacity；
（5）Moisture loss is prevented with film covering, some blow vents are opened up on film, air is injected in every circumference soil, and
The moisture that scatters and disappears, the reparation for completing soil in 30-45 days are supplemented in time.
2. a kind of soil remediation method suitable for landscape ecosystem according to claim 1, it is characterised in that：Described
Thermophilic type aerobic bacteria is cellulolytic bacterium and slime bacteria, and the ratio of the filament decomposability bacterium and slime bacteria is
1:3-4。
3. a kind of soil remediation method suitable for landscape ecosystem according to claim 1, it is characterised in that：Described
Biological soil renovation agent includes the component of following parts by weight：Organically-modified attapulgite -15-20 parts of montmorillonite, diatomite 3-5
Part, 10-20 parts of humic acid, 5-10 parts of charcoal, 20-30 parts of calcium magnesium phosphate, 8-12 parts of potassium dihydrogen phosphate, 10-15 parts of quick lime,
20-30 parts of bamboo fibre powder, 1-3 parts of hydroxybutyl cellulose.
4. a kind of soil remediation method suitable for landscape ecosystem according to claim 1, it is characterised in that：Described
Step is made by the following method for organically-modified attapulgite-montmorillonite：It will be ground after attapulgite sample washing and drying
Washing is ground to without Chloride residue drying after the HCl solution 600r/min high-speed stirreds 1h for the 5mol/L for adding 2 times of weight afterwards
Honed 200 mesh sieve obtains attapulgite powder；Montmorillonite sample is added into 1mol/L Na2CO3Solution 600r/min high-speed stirreds 2h
Separation takes supernatant afterwards, adds 1mol/L NaCl solution flocculation sediments, takes washing of precipitate to without Chloride residue, is ground after drying
Honed 200 mesh sieve obtains montmorillonite powder；Attapulgite powder, montmorillonite powder are mixed to get after mixed-powder and add 10 times
The cationic surfactant Dodecydimethylammonium bronides of weight, which are mixed evenly, obtains organically-modified attapulgite-illiteracy
De- soil suspension, rotating speed be 6000r/min centrifugations 15min take cross 80 mesh sieves after precipitation drying and crushing after obtain organically-modified concave convex rod
Soil-montmorillonite powder.
5. a kind of soil remediation method suitable for landscape ecosystem according to claim 1, it is characterised in that：Described
By the following method prepared by step for charcoal：
1）Paddy rice stalk, rape straw, cornstalk are cut into after the list structure of 10cm length and add the stirring mixing of 5mol/L HCl solutions
It is fitted into crucible to be placed in Muffle furnace after uniform and is dehydrated in 180-200 DEG C after pump-down process 1-2h and in 500-550 DEG C of high temperature
Lower charing 1-1.5h；
2）Step 1）High temperature carbonization processing after be cooled to water filtration after room temperature dry crushed again with pulverizer after cross 80 mesh sieves obtain
To charcoal powder.
6. a kind of soil remediation method suitable for landscape ecosystem according to claim 1, it is characterised in that：It is described
Bamboo fibre powder be prepared by the following method：The limewash that bamboo segmentation is cut into 15 times of weight of addition after strip is softened
It is to be crushed after 5-6 is cleaned with water again after 70 DEG C of drying that drying is cleaned after processing 5h and is cleaned again with the dilute HCl solutions of 1mol/L to pH value
Machine crushed 80 mesh sieves and obtains bamboo fibre powder.
7. a kind of soil remediation method suitable for landscape ecosystem according to claim 1, it is characterised in that：Described
Humic acid is ammonium nitro-humate.
8. a kind of soil remediation method suitable for landscape ecosystem according to claim 1, it is characterised in that：Described
Biological soil renovation agent preparation method includes following methods step：
1）After preparing organically-modified attapulgite-montmorillonite, charcoal, bamboo fibre powder respectively each powder is weighed according to formula ratio
It is well mixed to obtain mixed powder 1；
2）Weighed according to formula after quick lime crushed 80 mesh sieves and be added to step 1）In mixed powder 1 stirring mix to obtain mixed powder
2；
3）To step 2）In mixed powder 2 in add formula ratio diatomite, humic acid, calcium magnesium phosphate, potassium dihydrogen phosphate and hydroxyl
Butyl cellulose, is subsequently placed in after mixing 15-20min in blender and obtains biological soil renovation agent.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107774708A (en) * | 2017-10-31 | 2018-03-09 | 中冶华天工程技术有限公司 | Mining area periphery polluted farmland soil is administered and repair system method |
| CN108889773A (en) * | 2018-05-29 | 2018-11-27 | 深圳文科园林股份有限公司 | A kind of cadmium pollution mine soil renovation agent and preparation and application method |
| CN109233846A (en) * | 2018-08-22 | 2019-01-18 | 山西华欣久泰科技有限公司 | A kind of heavy-metal contaminated soil renovation agent and its application |
| CN110407649A (en) * | 2019-08-21 | 2019-11-05 | 广州德隆环境检测技术有限公司 | A kind of multiple-effect renovation agent of heavy-metal contaminated soil and preparation method thereof |
| CN113857227A (en) * | 2021-09-27 | 2021-12-31 | 生态环境部南京环境科学研究所 | Method for restoring heavy metal cadmium farmland soil by using stabilized restoration material |
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