CN106734157A - A kind of cadmium pollution soil restorative procedure - Google Patents
A kind of cadmium pollution soil restorative procedure Download PDFInfo
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- CN106734157A CN106734157A CN201611032318.3A CN201611032318A CN106734157A CN 106734157 A CN106734157 A CN 106734157A CN 201611032318 A CN201611032318 A CN 201611032318A CN 106734157 A CN106734157 A CN 106734157A
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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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- 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 discloses cadmium pollution soil restorative procedure, every mu of cadmium pollution soil application of organic fertilizers is obtained pretreatment soil；By soil remediation conditioner with pretreatment soil according to mass ratio 1:3 20 carry out first time mixing, spray water, and add a soil remediation after 20 30 days again carries out second mixing with conditioner, by can cadmium pollution soil repair after 10 50 days after being well mixed；Wherein soil remediation is included with conditioner：Wollastonite, biogas residue, nitric acid selenium, Dawsonite Kompensan, barium phosphate, the quaternary amine of dimethyl silicone polymer two, sugarcane ash, bamboo powder, methylisothiazolinone, sodium germanate, barium metaborate, (trimethyl silicon substrate) phosphate, tri-thiol s-triazine, Polyglycolic acid fibre.Using the method for the present invention repair after soil cadmium ion clearance be higher than 84%, the repairing effect to soil is good, repairing efficiency it is short and repair after soil environment quality fully meet China《Standard of soil environment quality》The requirement of (GB15618 1995) secondary standard.
Description
Technical field
The present invention relates to technical field of soil remediation, specifically cadmium pollution soil restorative procedure.
Background technology
The heavy metal of contaminated soil mainly including mercury, cadmium, lead, chromium and the significant element of bio-toxicity etc. metalloid arsenic, this
A little heavy metals mostly come from industrial and mining enterprises' waste residue, waste water, sludge, agricultural chemicals and flue dust atmospheric sedimentation etc..Heavy metal cannot be by
Microorganism is decomposed, and heavy metal itself mobility is poor, it is easy to is entered and is gathered in human body by food chain, and harmful to human is good for
Health, in addition heavy metal be also possible to be converted into the material bigger to harm, bring bigger harm.
The cadmium pollution of China is serious, and China's Cadmium Pollution in Soils event takes place frequently in recent years, such as Hunan " cadmium rice " event, in society
Attracted wide attention in meeting, the repairing and treating of heavy metal pollution agricultural land soil is extremely urgent.Cadmium is heavy metal toxicity
One of maximum " five poisonous creatures: scorpion, viper, centipede, house lizard, toad ", with latency, persistence and irreversibility, bio-toxicity is big, than other heavy metals in soil
It is easier to be absorbed by crops, into food chain, is detrimental to health.The patent of invention of the A of Publication No. CN 102513340 is public
A kind of method of remediating heavy metal cadmium pollution soil has been opened, it is specific that cadmium pollution is processed with microbial association restorative procedure using plant
Soil, as a result shows that cadmium clearance is 64.2%, and the method has repairing efficiency long, the collection of later stage plant and complex treatment process
Deng not enough.
The content of the invention
It is an object of the invention to provide the cadmium pollution soil restorative procedure that repairing effect is good, repairing efficiency is short, to solve
The problem proposed in above-mentioned background technology.
To achieve the above object, the present invention provides following technical scheme：
Cadmium pollution soil restorative procedure, comprises the following steps：
1) every mu of 0.5-2 tons of cadmium pollution soil application of organic fertilizers, is ploughed under in cadmium pollution soil, spray water with rotary cultivator, is protected
The humidity for holding contaminated soil is 10-50%；Pretreatment soil is obtained after placing 5-30 days；
2) by soil remediation conditioner and pretreatment soil according to mass ratio 1:3-20 carries out first time mixing, in mixing
During spray water, keep pretreatment soil humidity be 8-20%, keep pretreatment soil temperature be 18-35 DEG C, 20-
Adding a soil remediation after 30 days again carries out second mixing with conditioner, and the addition of soil remediation conditioner is pre- place
The 5-30% of soil quality is managed, after being well mixed, the humidity for keeping pretreatment soil is 10-30%, keeps pretreatment soil
Temperature is 25-35 DEG C, by can cadmium pollution soil repair after 10-50 days；Wherein soil remediation conditioner, according to weight portion
Raw material include：Wollastonite 30-70 parts, biogas residue 5-25 parts, 1-20 parts of nitric acid selenium, Dawsonite Kompensan 0.1-5 parts, barium phosphate 1-
15 parts, quaternary amine 1-10 parts of dimethyl silicone polymer two, sugarcane ash 3-20 parts, bamboo powder 1-15 parts, methylisothiazolinone 0.1-5
Part, sodium germanate 0.1-5 parts, barium metaborate 0.1-5 parts, phosphate 0.1-5 parts of (trimethyl silicon substrate), tri-thiol s-triazine 0.1-5
Part, Polyglycolic acid fibre 0.1-2 parts.
As further scheme of the invention：Step 1) in, organic fertilizer includes but is not limited to chicken manure, cow dung, sheep manure, horse
One kind or any combination in excrement, rabbit excrement, duck excrement.
As further scheme of the invention：Step 1) in, every mu of 1-1.5 tons of cadmium pollution soil application of organic fertilizers.
As further scheme of the invention：Step 1) in, the humidity for keeping contaminated soil is 20-40%；Place 10-20
My god.
As further scheme of the invention：Step 2) in, soil remediation carries out first with conditioner with pretreatment soil
The mass ratio of secondary mixing is 1:5-10.
As further scheme of the invention：Step 2) in, during second mixing, the addition of soil remediation conditioner
To pre-process the 10-20% of soil quality.
As further scheme of the invention：Step 2) in, after second mixes, by cadmium can be repaired after 15-45 days
Contaminated soil.
As further scheme of the invention：Step 2) in, soil remediation conditioner, according to the raw material bag of weight portion
Include：Wollastonite 35-65 parts, biogas residue 8-20 parts, 2-15 parts of nitric acid selenium, Dawsonite Kompensan 0.5-4 parts, barium phosphate 1-12 parts, it is poly-
Quaternary amine 1-8 parts of dimethyl siloxane two, sugarcane ash 5-15 parts, bamboo powder 1-12 parts, methylisothiazolinone 0.2-4 parts, germanic acid
Sodium 0.2-4 parts, barium metaborate 0.1-3 parts, phosphate 0.5-4 parts of (trimethyl silicon substrate), 0.5-3 parts of tri-thiol s-triazine, poly- second
0.1-1.5 parts of dioxy thiophene of support.
As further scheme of the invention：Step 2) in, soil remediation conditioner, according to the raw material bag of weight portion
Include：Wollastonite 40-60 parts, biogas residue 11-17 parts, 3-11 parts of nitric acid selenium, Dawsonite Kompensan 1-3 parts, barium phosphate 2-8 parts, poly- two
Quaternary amine 2-6 parts of methylsiloxane two, sugarcane ash 7-12 parts, bamboo powder 2-8 parts, methylisothiazolinone 0.5-2 parts, sodium germanate
0.5-2 parts, barium metaborate 0.2-1.2 parts, phosphate 1-2 parts of (trimethyl silicon substrate), 1-1.6 parts of tri-thiol s-triazine, poly- ethylene
Dioxy thiophene 0.1-0.8 parts.
As further scheme of the invention：Step 2) in, the preparation process of soil remediation conditioner：By wollastonite,
Biogas residue, nitric acid selenium, Dawsonite Kompensan, barium phosphate, the quaternary amine of dimethyl silicone polymer two, sugarcane ash, bamboo powder, methyl-isothiazol
Quinoline ketone, sodium germanate, barium metaborate, (trimethyl silicon substrate) phosphate, tri-thiol s-triazine, Polyglycolic acid fibre are according to weight portion
After weighing, 30-100 mesh sieves are crossed, obtained final product after being well mixed.
Compared with prior art, the beneficial effects of the invention are as follows：
Heavy metal reparation is carried out using restorative procedure of the invention, the clearance of the cadmium ion of soil is higher than after reparation
84%, the risk of environmental pollution of Cd-polluted farmland soil is eliminated, it is ensured that the safety in production of agricultural product, to the repairing effect of soil
Good, repairing efficiency is short and soil environment quality of after repairing fully meets China《Standard of soil environment quality》(GB15618-
1995) secondary standard requirement.Wollastonite, biogas residue, nitric acid selenium, sugarcane ash, bamboo powder in soil remediation conditioner etc. are to soil
The conditioning of quality play an important role, the integrality of effective soil protection structure, it is ensured that the soil after reparation can be used in
The possibility of agro-farming.
Specific embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described,
Obviously, described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of protection of the invention.
Embodiment 1
In the embodiment of the present invention, cadmium pollution soil restorative procedure is comprised the following steps：
1) every mu of 0.5 ton of cadmium pollution soil application of organic fertilizers, is ploughed under in cadmium pollution soil, spray water with rotary cultivator, is kept
The humidity of contaminated soil is 10%；Pretreatment soil is obtained after placing 5 days.
2) by soil remediation conditioner and pretreatment soil according to mass ratio 1:3 carry out first time mixing, in mixing
During spray water, keep pretreatment soil humidity be 8%, keep pretreatment soil temperature be 18 DEG C, add again after 20 days
Plus a soil remediation carries out second mixing with conditioner, the addition of soil remediation conditioner is pretreatment soil quality
5%, be well mixed after, keep pretreatment soil humidity be 10%, keep pretreatment soil temperature be 25 DEG C, by 10
Can cadmium pollution soil repair after it.
Wherein organic fertilizer is sheep manure.Soil remediation conditioner, includes according to the raw material of weight portion：30 parts of wollastonite, natural pond
5 parts of slag, 1 part of nitric acid selenium, 0.1 part of Dawsonite Kompensan, 1 part of barium phosphate, 1 part of two quaternary amine of dimethyl silicone polymer, sugarcane ash 3
Part, 1 part of bamboo powder, 0.1 part of methylisothiazolinone, 0.1 part of sodium germanate, 0.1 part of barium metaborate, (trimethyl silicon substrate) phosphate
0.1 part, 0.1 part of tri-thiol s-triazine, 0.1 part of Polyglycolic acid fibre.The preparation process of soil remediation conditioner：By silicon ash
Stone, biogas residue, nitric acid selenium, Dawsonite Kompensan, barium phosphate, the quaternary amine of dimethyl silicone polymer two, sugarcane ash, bamboo powder, methyl are different
Thiazolinone, sodium germanate, barium metaborate, (trimethyl silicon substrate) phosphate, tri-thiol s-triazine, Polyglycolic acid fibre are according to weight
After amount part weighs, 30 mesh sieves are crossed, obtained final product after being well mixed.
Embodiment 2
In the embodiment of the present invention, cadmium pollution soil restorative procedure is comprised the following steps：
1) every mu of 2 tons of cadmium pollution soil application of organic fertilizers, is ploughed under in cadmium pollution soil, spray water with rotary cultivator, keeps dirty
The humidity for contaminating soil is 50%；Pretreatment soil is obtained after placing 30 days.
2) by soil remediation conditioner and pretreatment soil according to mass ratio 1:20 carry out first time mixing, in mixing
During spray water, keep pretreatment soil humidity be 20%, keep pretreatment soil temperature be 35 DEG C, add again after 30 days
Plus a soil remediation carries out second mixing with conditioner, the addition of soil remediation conditioner is pretreatment soil quality
30%, be well mixed after, keep pretreatment soil humidity be 30%, keep pretreatment soil temperature be 35 DEG C, pass through
Can cadmium pollution soil repair after 50 days.
Wherein organic fertilizer is chicken manure, cow dung, sheep manure, the mixture of horsehit.Soil remediation conditioner, according to weight portion
Raw material includes：70 parts of wollastonite, 25 parts of biogas residue, 20 parts of nitric acid selenium, 5 parts of Dawsonite Kompensan, 15 parts of barium phosphate, poly dimethyl silicon
10 parts of two quaternary amine of oxygen alkane, 20 parts of sugarcane ash, 15 parts of bamboo powder, 5 parts of methylisothiazolinone, 5 parts of sodium germanate, 5 parts of barium metaborate,
5 parts of (trimethyl silicon substrate) phosphate, tri-thiol Strinoline part, 2 parts of Polyglycolic acid fibre.The system of soil remediation conditioner
Standby process：By wollastonite, biogas residue, nitric acid selenium, Dawsonite Kompensan, barium phosphate, the quaternary amine of dimethyl silicone polymer two, sugarcane
Ash, bamboo powder, methylisothiazolinone, sodium germanate, barium metaborate, (trimethyl silicon substrate) phosphate, tri-thiol s-triazine, poly- ethylene
After dioxy thiophene is weighed according to weight portion, 100 mesh sieves are crossed, obtained final product after being well mixed.
Embodiment 3
In the embodiment of the present invention, cadmium pollution soil restorative procedure is comprised the following steps：
1) every mu of 1 ton of cadmium pollution soil application of organic fertilizers, is ploughed under in cadmium pollution soil, spray water with rotary cultivator, keeps dirty
The humidity for contaminating soil is 20%；Pretreatment soil is obtained after placing 10 days.
2) by soil remediation conditioner and pretreatment soil according to mass ratio 1:5 carry out first time mixing, in mixing
During spray water, keep pretreatment soil humidity be 10%, keep pretreatment soil temperature be 20 DEG C, add again after 22 days
Plus a soil remediation carries out second mixing with conditioner, the addition of soil remediation conditioner is pretreatment soil quality
10%, be well mixed after, keep pretreatment soil humidity be 15%, keep pretreatment soil temperature be 25 DEG C, pass through
Can cadmium pollution soil repair after 15 days.
Wherein organic fertilizer is chicken manure.Soil remediation conditioner, includes according to the raw material of weight portion：35 parts of wollastonite, natural pond
8 parts of slag, 2 parts of nitric acid selenium, 0.5 part of Dawsonite Kompensan, 1 part of barium phosphate, 1 part of two quaternary amine of dimethyl silicone polymer, sugarcane ash 5
Part, 1 part of bamboo powder, 0.2 part of methylisothiazolinone, 0.2 part of sodium germanate, 0.1 part of barium metaborate, (trimethyl silicon substrate) phosphate
0.5 part, 0.5 part of tri-thiol s-triazine, 0.1 part of Polyglycolic acid fibre.The preparation process of soil remediation conditioner：By silicon ash
Stone, biogas residue, nitric acid selenium, Dawsonite Kompensan, barium phosphate, the quaternary amine of dimethyl silicone polymer two, sugarcane ash, bamboo powder, methyl are different
Thiazolinone, sodium germanate, barium metaborate, (trimethyl silicon substrate) phosphate, tri-thiol s-triazine, Polyglycolic acid fibre are according to weight
After amount part weighs, 50 mesh sieves are crossed, obtained final product after being well mixed.
Embodiment 4
In the embodiment of the present invention, cadmium pollution soil restorative procedure is comprised the following steps：
1) every mu of 1.5 tons of cadmium pollution soil application of organic fertilizers, is ploughed under in cadmium pollution soil, spray water with rotary cultivator, is kept
The humidity of contaminated soil is 40%；Pretreatment soil is obtained after placing 20 days.
2) by soil remediation conditioner and pretreatment soil according to mass ratio 1:10 carry out first time mixing, in mixing
During spray water, keep pretreatment soil humidity be 15%, keep pretreatment soil temperature be 35 DEG C, add again after 30 days
Plus a soil remediation carries out second mixing with conditioner, the addition of soil remediation conditioner is pretreatment soil quality
20%, be well mixed after, keep pretreatment soil humidity be 30%, keep pretreatment soil temperature be 35 DEG C, pass through
Can cadmium pollution soil repair after 45 days.
Wherein organic fertilizer is cow dung, sheep manure, the mixture of horsehit.Soil remediation conditioner, according to the raw material of weight portion
Including：65 parts of wollastonite, 20 parts of biogas residue, 15 parts of nitric acid selenium, 4 parts of Dawsonite Kompensan, 12 parts of barium phosphate, dimethyl silicone polymer
Two 8 parts of quaternary amines, 15 parts of sugarcane ash, 12 parts of bamboo powder, 4 parts of methylisothiazolinone, 4 parts of sodium germanate, 3 parts of barium metaborate, (front three
Base silicon substrate) 4 parts of phosphate, 3 parts of tri-thiol s-triazine, 1.5 parts of Polyglycolic acid fibre.The preparation of soil remediation conditioner
Journey：By wollastonite, biogas residue, nitric acid selenium, Dawsonite Kompensan, barium phosphate, the quaternary amine of dimethyl silicone polymer two, sugarcane ash, bamboo
Powder, methylisothiazolinone, sodium germanate, barium metaborate, (trimethyl silicon substrate) phosphate, tri-thiol s-triazine, poly- enedioxy
After thiophene is weighed according to weight portion, 80 mesh sieves are crossed, obtained final product after being well mixed.
Embodiment 5
In the embodiment of the present invention, cadmium pollution soil restorative procedure is comprised the following steps：
1) every mu of 1.2 tons of cadmium pollution soil application of organic fertilizers, is ploughed under in cadmium pollution soil, spray water with rotary cultivator, is kept
The humidity of contaminated soil is 25%；Pretreatment soil is obtained after placing 18 days.
2) by soil remediation conditioner and pretreatment soil according to mass ratio 1:6 carry out first time mixing, in mixing
During spray water, keep pretreatment soil humidity be 10%, keep pretreatment soil temperature be 30 DEG C, add again after 22 days
Plus a soil remediation carries out second mixing with conditioner, the addition of soil remediation conditioner is pretreatment soil quality
18%, be well mixed after, keep pretreatment soil humidity be 20%, keep pretreatment soil temperature be 30 DEG C, pass through
Can cadmium pollution soil repair after 30 days.
Wherein organic fertilizer is sheep manure, horsehit, rabbit excrement, the mixture of duck excrement.Soil remediation conditioner, according to weight portion
Raw material includes：40 parts of wollastonite, 11 parts of biogas residue, 3 parts of nitric acid selenium, 1 part of Dawsonite Kompensan, 2 parts of barium phosphate, polydimethylsiloxanes
2 parts of two quaternary amine of alkane, 7 parts of sugarcane ash, 2 parts of bamboo powder, 0.5 part of methylisothiazolinone, 0.5 part of sodium germanate, barium metaborate 0.2
Part, 1 part of (trimethyl silicon substrate) phosphate, 1 part of tri-thiol s-triazine, 0.1 part of Polyglycolic acid fibre.Soil remediation conditioner
Preparation process：By wollastonite, biogas residue, nitric acid selenium, Dawsonite Kompensan, barium phosphate, the quaternary amine of dimethyl silicone polymer two, sweet
Sugarcane ash, bamboo powder, methylisothiazolinone, sodium germanate, barium metaborate, (trimethyl silicon substrate) phosphate, tri-thiol s-triazine, poly- second
After support dioxy thiophene is weighed according to weight portion, 50 mesh sieves are crossed, obtained final product after being well mixed.
Embodiment 6
In the embodiment of the present invention, cadmium pollution soil restorative procedure is comprised the following steps：
1) every mu of 1.3 tons of cadmium pollution soil application of organic fertilizers, is ploughed under in cadmium pollution soil, spray water with rotary cultivator, is kept
The humidity of contaminated soil is 30%；Pretreatment soil is obtained after placing 15 days.
2) by soil remediation conditioner and pretreatment soil according to mass ratio 1:8 carry out first time mixing, in mixing
During spray water, keep pretreatment soil humidity be 14%, keep pretreatment soil temperature be 25 DEG C, add again after 25 days
Plus a soil remediation carries out second mixing with conditioner, the addition of soil remediation conditioner is pretreatment soil quality
15%, be well mixed after, keep pretreatment soil humidity be 20%, keep pretreatment soil temperature be 35 DEG C, pass through
Can cadmium pollution soil repair after 30 days.
Wherein organic fertilizer is chicken manure, cow dung, sheep manure, the mixture of horsehit.Soil remediation conditioner, according to weight portion
Raw material includes：60 parts of wollastonite, 17 parts of biogas residue, 11 parts of nitric acid selenium, 3 parts of Dawsonite Kompensan, 8 parts of barium phosphate, poly dimethyl silicon
6 parts of two quaternary amine of oxygen alkane, 12 parts of sugarcane ash, 8 parts of bamboo powder, 2 parts of methylisothiazolinone, 2 parts of sodium germanate, 1.2 parts of barium metaborate,
2 parts of (trimethyl silicon substrate) phosphate, 1.6 parts of tri-thiol s-triazine, 0.8 part of Polyglycolic acid fibre.Soil remediation conditioner
Preparation process：By wollastonite, biogas residue, nitric acid selenium, Dawsonite Kompensan, barium phosphate, the quaternary amine of dimethyl silicone polymer two, sweet
Sugarcane ash, bamboo powder, methylisothiazolinone, sodium germanate, barium metaborate, (trimethyl silicon substrate) phosphate, tri-thiol s-triazine, poly- second
After support dioxy thiophene is weighed according to weight portion, 60 mesh sieves are crossed, obtained final product after being well mixed.
Embodiment 7
In the embodiment of the present invention, cadmium pollution soil restorative procedure is comprised the following steps：
1) every mu of 1.1 tons of cadmium pollution soil application of organic fertilizers, is ploughed under in cadmium pollution soil, spray water with rotary cultivator, is kept
The humidity of contaminated soil is 25%；Pretreatment soil is obtained after placing 18 days.
2) by soil remediation conditioner and pretreatment soil according to mass ratio 1:8 carry out first time mixing, in mixing
During spray water, keep pretreatment soil humidity be 10%, keep pretreatment soil temperature be 30 DEG C, add again after 22 days
Plus a soil remediation carries out second mixing with conditioner, the addition of soil remediation conditioner is pretreatment soil quality
18%, be well mixed after, keep pretreatment soil humidity be 20%, keep pretreatment soil temperature be 30 DEG C, pass through
Can cadmium pollution soil repair after 30 days.
Wherein organic fertilizer is sheep manure, horsehit, rabbit excrement, the mixture of duck excrement.Soil remediation conditioner, according to weight portion
Raw material includes：45 parts of wollastonite, 12 parts of biogas residue, 5 parts of nitric acid selenium, 2 parts of Dawsonite Kompensan, 5 parts of barium phosphate, polydimethylsiloxanes
3 parts of two quaternary amine of alkane, 8 parts of sugarcane ash, 3 parts of bamboo powder, 1 part of methylisothiazolinone, 0.5 part of sodium germanate, 0.2 part of barium metaborate,
1 part of (trimethyl silicon substrate) phosphate, 1 part of tri-thiol s-triazine, 0.1 part of Polyglycolic acid fibre.Soil remediation conditioner
Preparation process：By wollastonite, biogas residue, nitric acid selenium, Dawsonite Kompensan, barium phosphate, the quaternary amine of dimethyl silicone polymer two, sugarcane
Ash, bamboo powder, methylisothiazolinone, sodium germanate, barium metaborate, (trimethyl silicon substrate) phosphate, tri-thiol s-triazine, poly- ethylene
After dioxy thiophene is weighed according to weight portion, 50 mesh sieves are crossed, obtained final product after being well mixed.
Embodiment 8
In the embodiment of the present invention, cadmium pollution soil restorative procedure is comprised the following steps：
1) every mu of 1.4 tons of cadmium pollution soil application of organic fertilizers, is ploughed under in cadmium pollution soil, spray water with rotary cultivator, is kept
The humidity of contaminated soil is 30%；Pretreatment soil is obtained after placing 15 days.
2) by soil remediation conditioner and pretreatment soil according to mass ratio 1:7 carry out first time mixing, in mixing
During spray water, keep pretreatment soil humidity be 14%, keep pretreatment soil temperature be 25 DEG C, add again after 25 days
Plus a soil remediation carries out second mixing with conditioner, the addition of soil remediation conditioner is pretreatment soil quality
15%, be well mixed after, keep pretreatment soil humidity be 20%, keep pretreatment soil temperature be 35 DEG C, pass through
Can cadmium pollution soil repair after 30 days.
Wherein organic fertilizer is chicken manure, cow dung, sheep manure, the mixture of horsehit.Soil remediation conditioner, according to weight portion
Raw material includes：55 parts of wollastonite, 15 parts of biogas residue, 10 parts of nitric acid selenium, 2.5 parts of Dawsonite Kompensan, 7 parts of barium phosphate, poly dimethyl
4 parts of two quaternary amine of siloxanes, 11 parts of sugarcane ash, 6 parts of bamboo powder, 1.5 parts of methylisothiazolinone, 2 parts of sodium germanate, barium metaborate
1.2 parts, 2 parts of (trimethyl silicon substrate) phosphate, 1.6 parts of tri-thiol s-triazine, 0.8 part of Polyglycolic acid fibre.Soil remediation is used
The preparation process of conditioner：By wollastonite, biogas residue, nitric acid selenium, Dawsonite Kompensan, barium phosphate, the season of dimethyl silicone polymer two
Amine salt, sugarcane ash, bamboo powder, methylisothiazolinone, sodium germanate, barium metaborate, (trimethyl silicon substrate) phosphate, tri-thiol equal three
After piperazine, Polyglycolic acid fibre are weighed according to weight portion, 60 mesh sieves are crossed, obtained final product after being well mixed.
Performance test
Identical cadmium pollution soil to be repaired is taken, the method being respectively adopted in the various embodiments described above 1-6 carries out soil and repaiies
It is multiple, after reparation, chemical examination detection is sampled to each soil, testing result is shown in Table 1：
Table 1
| Concentration of cadmium ions (mg/kg) | Cadmium ion clearance | |
| Initial concentration | 160.8 | - |
| Embodiment 1 | 25.6 | 84.1% |
| Embodiment 2 | 24.3 | 84.9% |
| Embodiment 3 | 21.5 | 86.6% |
| Embodiment 4 | 20.8 | 87.1% |
| Embodiment 5 | 19.5 | 87.9% |
| Embodiment 6 | 18.6 | 88.4% |
| Embodiment 7 | 18.2 | 88.7% |
| Embodiment 8 | 18.0 | 88.8% |
As seen from the above table, repaired using the present invention, the clearance of cadmium ion is higher than 84.1%, and display is preferably removed
Efficiency and removal effect.Embodiment 5-8 is presently preferred embodiments of the present invention.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be in other specific forms realized.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires to be limited rather than described above, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each implementation method is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Specification an as entirety, the technical scheme in each embodiment can also be formed into those skilled in the art through appropriately combined
May be appreciated other embodiment.
Claims (10)
1. cadmium pollution soil restorative procedure, it is characterised in that comprise the following steps：
1) every mu of 0.5-2 tons of cadmium pollution soil application of organic fertilizers, is ploughed under in cadmium pollution soil, spray water with rotary cultivator, keeps dirty
The humidity for contaminating soil is 10-50%；Pretreatment soil is obtained after placing 5-30 days；
2) by soil remediation conditioner and pretreatment soil according to mass ratio 1:3-20 carries out first time mixing, in the mistake of mixing
Spray water in journey, the humidity for keeping pretreatment soil is 8-20%, and the temperature for keeping pretreatment soil is 18-35 DEG C, 20-30 days
Adding a soil remediation again afterwards carries out second mixing with conditioner, and the addition of soil remediation conditioner is pretreatment soil
The 5-30% of loamy texture amount, after being well mixed, the humidity for keeping pretreatment soil is 10-30%, keeps the temperature of pretreatment soil
It it is 25-35 DEG C, by can cadmium pollution soil repair after 10-50 days；Wherein soil remediation conditioner, according to the original of weight portion
Material includes：Wollastonite 30-70 parts, biogas residue 5-25 parts, 1-20 parts of nitric acid selenium, Dawsonite Kompensan 0.1-5 parts, barium phosphate 1-15
Part, quaternary amine 1-10 parts of dimethyl silicone polymer two, sugarcane ash 3-20 parts, bamboo powder 1-15 parts, methylisothiazolinone 0.1-5
Part, sodium germanate 0.1-5 parts, barium metaborate 0.1-5 parts, phosphate 0.1-5 parts of (trimethyl silicon substrate), tri-thiol s-triazine 0.1-5
Part, Polyglycolic acid fibre 0.1-2 parts.
2. cadmium pollution soil restorative procedure according to claim 1, it is characterised in that step 1) in, organic fertilizer include but
It is not limited to one kind or any combination in chicken manure, cow dung, sheep manure, horsehit, rabbit excrement, duck excrement.
3. cadmium pollution soil restorative procedure according to claim 1, it is characterised in that step 1) in, every mu of cadmium pollution soil
1-1.5 tons of earth application of organic fertilizers.
4. cadmium pollution soil restorative procedure according to claim 1, it is characterised in that step 1) in, keep contaminated soil
Humidity be 20-40%；Place 10-20 days.
5. cadmium pollution soil restorative procedure according to claim 1, it is characterised in that step 2) in, soil remediation is adjusted
It is 1 that reason agent carries out the mass ratio that first time mixes with pretreatment soil:5-10.
6. cadmium pollution soil restorative procedure according to claim 1, it is characterised in that step 2) in, when mixing for second,
The addition of soil remediation conditioner is the 10-20% for pre-processing soil quality.
7. cadmium pollution soil restorative procedure according to claim 1, it is characterised in that step 2) in, after second mixes,
By can cadmium pollution soil repair after 15-45 days.
8. cadmium pollution soil restorative procedure according to claim 1, it is characterised in that step 2) in, soil remediation is adjusted
Reason agent, includes according to the raw material of weight portion：Wollastonite 35-65 parts, biogas residue 8-20 parts, 2-15 parts of nitric acid selenium, Dawsonite Kompensan
0.5-4 parts, barium phosphate 1-12 parts, quaternary amine 1-8 parts of dimethyl silicone polymer two, sugarcane ash 5-15 parts, bamboo powder 1-12 parts, methyl
OIT 0.2-4 parts, sodium germanate 0.2-4 parts, barium metaborate 0.1-3 parts, phosphate 0.5-4 parts of (trimethyl silicon substrate), three
0.5-3 parts, Polyglycolic acid fibre 0.1-1.5 parts of sulfydryl s-triazine.
9. cadmium pollution soil restorative procedure according to claim 1, it is characterised in that step 2) in, soil remediation is adjusted
Reason agent, includes according to the raw material of weight portion：Wollastonite 40-60 parts, biogas residue 11-17 parts, 3-11 parts of nitric acid selenium, Dawsonite Kompensan
1-3 parts, barium phosphate 2-8 parts, quaternary amine 2-6 parts of dimethyl silicone polymer two, sugarcane ash 7-12 parts, bamboo powder 2-8 parts, the different thiophene of methyl
0.5-2 parts of oxazoline ketone, sodium germanate 0.5-2 parts, barium metaborate 0.2-1.2 parts, phosphate 1-2 parts of (trimethyl silicon substrate), tri-thiol
S-triazine 1-1.6 parts, Polyglycolic acid fibre 0.1-0.8 parts.
10. cadmium pollution soil restorative procedure according to claim 1, it is characterised in that step 2) in, soil remediation is adjusted
Manage the preparation process of agent：By wollastonite, biogas residue, nitric acid selenium, Dawsonite Kompensan, barium phosphate, the quaternary amine of dimethyl silicone polymer two
Salt, sugarcane ash, bamboo powder, methylisothiazolinone, sodium germanate, barium metaborate, (trimethyl silicon substrate) phosphate, tri-thiol equal three
After piperazine, Polyglycolic acid fibre are weighed according to weight portion, 30-100 mesh sieves are crossed, obtained final product after being well mixed.
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