CN106825007B - A method of administering heavy-metal contaminated soil - Google Patents
A method of administering heavy-metal contaminated soil Download PDFInfo
- Publication number
- CN106825007B CN106825007B CN201611111307.4A CN201611111307A CN106825007B CN 106825007 B CN106825007 B CN 106825007B CN 201611111307 A CN201611111307 A CN 201611111307A CN 106825007 B CN106825007 B CN 106825007B
- Authority
- CN
- China
- Prior art keywords
- soil
- heavy
- metal
- heavy metal
- contaminated soil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
-
- 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
-
- 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
- B09C1/105—Reclamation of contaminated soil microbiologically, biologically or by using enzymes using fungi or plants
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mycology (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- Biomedical Technology (AREA)
- Microbiology (AREA)
- Molecular Biology (AREA)
- General Health & Medical Sciences (AREA)
- Biotechnology (AREA)
- Health & Medical Sciences (AREA)
- Botany (AREA)
- Processing Of Solid Wastes (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention discloses a kind of methods for administering heavy-metal contaminated soil, this method carries out more accurate measurement to the content of beary metal value in soil by vertical sampling and horizontal sampling, animal bone powder has good suction-operated to heavy metal ion in the heavy metal stabilizer of addition, sodium dihydrogen phosphate, sodium lignin sulfonate, potassium chloride, hydroxyapatite comprehensive function can be with the chemical activity of curing heavy metal ion, it is adsorbed to be absorbed with other biological nutriment by the rhizome of artemisia selengensis afterwards, soil improvement agent is added, under microorganism isoreactivity material effect, inhibit the harmful bacteria in soil, the fertility and growth activity of liquid microbe fertilizer improvement soil.
Description
Technical field
It is specifically to be related to a kind of improvement heavy metal pollution the invention belongs to heavy-metal contaminated soil Treatment process field
The method of soil.
Background technique
Heavy metal pollution of soil refers to that the content of the minor metallic element in soil in the soil is more than background value, excessive heavy
Too high levels caused by product, are referred to as heavy metal pollution of soil.Heavy metal refers to the metal that specific gravity is equal to or more than 5.0, such as
Fe, Mn, Zn, Cd, Hg, Ni, Co etc.；Since metal is added in soil by mankind's activity, cause heavy metal in soil obviously high
In primary content and the phenomenon that cause eco-environmental quality to deteriorate.And the harm that heavy metal pollution is generated to soil is very tight
Weight, the development of plant roots and leaf is especially influenced, nerve system of human body, immune system, skeletal system etc. are destroyed.
The current improvement for heavy metal in soil pollution also faces many problems, this is because heavy metal cannot be micro-
Biodegrade is that environment is long-term, potential pollutant；The suction-operated of soil colloid and particulate matter, long-term existence in soil,
Concentration is mostly distributed at perpendicular drop；It is acted on the ligand in soil, generates complex compound or chelate, cause heavy metal in soil
In have bigger solubility and migratory activity；Heavy metal-polluted soil can be bioaccumulation by food chain, generated biomagnification and made
With；The form of heavy metal is different, and activity is different from toxicity, and the conditions such as soil pH, Eh, particulate matter and content of organic matter are deep
Influence its migration and conversion in the soil；Heavy metal pollution of soil is one of global main environment harm, and may pass through agriculture
Crop enters human foods chain.The first Chinese overall survey of soil shows, China with the presence of nearly 20% arable land cadmium, arsenic, mercury, lead, nickel,
The heavy metals exceeding standards such as copper, these heavy metals can be absorbed into food chain by crops, seriously affect food safety and jeopardize people
Class health.It is reported that the reason of causing heavy metal pollution of soil is complicated, including industrial discharge, fertilizer and pesticide use and ground mine is opened
It adopts, it is extremely difficult by physics and chemical means improvement, also it be easy to cause secondary pollution.
Therefore, it is very urgent in improvement heavy metal pollution of soil field to study novel administering method, the object of the prior art
Reason is although quick with chemical repair method, but can bring multiple secondary pollution, at high cost, big to environmental perturbation.Therefore
It needs a variety of restorative procedures such as phytoremediation, physical chemistry reparation, soil function improvement effectively preferably realizing weight in conjunction with next
The regulation effect of metallic pollution soil.
Summary of the invention
Phytoremediation, physical chemistry reparation, soil function are improved the technical problem to be solved by the present invention is to provide a kind of
Synergy improves the method for the improvement heavy-metal contaminated soil of soil activation using microbial fermentation, liquid fertilization etc..
Technical scheme is as follows:
A method of administering heavy-metal contaminated soil, comprising the following steps:
(1) heavy metal analysis: multizone Stratified Sampling is carried out in the soil containing heavy metal for needing to repair, samples path
Including vertical sampling and horizontal sampling, content of beary metal detection, the original then are carried out with atomic absorption spectrography (AAS) to sample
Sub- absorption spectrometry is using graphite type of furnace Atomic Absorption Spectrometer, and can measure can measure the 10-13g/mL order of magnitude, multiple to include
The sheet metal of element, can carry out micro- determination of trace to mercury, arsenic, lead, selenium, tin, tellurium, antimony, germanium etc., an additional amplification factor
Control unit, for all measurement wavelength, gap width, original according to used by being measurement sample during being operated with sample measurement
For the corresponding detector signal voltage of sonization temperature to control amplifier, making it have can make sample in highest signal to noise ratio when progress
The optimal detector signal amplification factor of measurement, thus keep testing result more accurate, it according to testing result will be in soil
Content of beary metal is divided into single abatement modules according to different level ranges, then adopts to different content of beary metal modules
Take the resolution of classification；
(2) heavy metal is stablized: the abatement modules that step (1) divides being mutually isolated, abatement modules size is the length of 2*3m
Square shape, area of isolation width are 30-50cm, remove the sundries on surface in soil, it is steady that heavy metal is uniformly sprayed to upper soll layer
Determine agent, the volume ratio of spraying amount and soil is 1:300-500, and then by soil scarifying, scarifying depth is 15-25cm, and spray 10-
Then 20min is covered using film, after the holding soil moisture is 25-35 DEG C, normal illumination 2 days, take down film, again scarifying
Soil is to fluffy；
(3) root system of plant adsorbs: the fluffy soil that (2) are obtained applies high-quality decomposed muck, 3000 public affairs of applying fertilizer per acre
Jin, is made into the high ridge of 0.8-1m wide, digs out artemisia selengensis stalwartness subterranean stem, be cut into the segment of 2-3cm long, by its shallow embedding in soil,
3 sections of every nest, the populated regions size of every nest are 50*50cm, are embedded in underground, and deep about 6-8cm sprinkles profoundly water irrigation, keeps soil wet
Profit, temperature control is being 25-30 DEG C, uses 5-10 kilograms of urea per acre during irrigation, artemisia selengensis growth period carries out pest and disease damage
Prevention and treatment, when plant height 20-25cm, harvest, and tender stem flush with ground is cut off, and plough and cut weeds, promote artemisia selengensis root system can Rapid development, warp
It when measurement underground rhizome reaches 20-30cm along center of gravity direction overburden depth, ploughs and removes artemisia selengensis rhizome, cleaning soil is suitable daily
Work as ventilation, reduces soil moisture；
(4) improver is administered: soil improvement agent being mixed with water according to the volume ratio of 1:80-120, is mixing uniformly to form
Proportioned improver aqueous solution is injected into soil, the note of each injection orifice by improver aqueous solution by soil injector
The amount of penetrating is 400-600ml, and injection radiation areas are that diameter is 80-100cm, depth 20-30cm, and injection depth is more than to plough to plant
Layer, is passed through oxidizing gas oxygen in each injection orifice after the completion of injection, the ventilatory capacity of each injection orifice is 2-3L, when ventilation
Between be 3-5min, make in soil activity is strong not released energy gradually by the metal ion that plant is adsorbed, do not generate chemical affect, control
Temperature be 20-30 DEG C, venting process it is closed for 24 hours after, plough a field harrowing a field, that is, realize heavy-metal contaminated soil reparation.
Further, the vertical sampling refers to the soil for taking arable layer 0-30cm, and the horizontal sampling refers to
Centered on sample point, six samples are taken within the scope of radius about 40-60cm altogether, the content of beary metal value in soil can be carried out flat
, to more accurately divide the content of beary metal range of soil.
Further, the composition by weight of the raw material of the heavy metal stabilizer are as follows: 30-50 parts of animal bone powder, di(2-ethylhexyl)phosphate
20-40 parts of hydrogen sodium, 5-8 parts of sodium lignin sulfonate, 4-6 parts of potassium chloride, 6-10 parts of hydroxyapatite, preparation method are by animal
Bone is dried after rejecting impurity, using crushing and crushing, is crossed 60 meshes, is placed in machine mixer, first with 120-180r/min
Revolving speed, stirring 5-10 minutes after, be separately added into the sodium dihydrogen phosphate, sodium lignin sulfonate, hydroxy-apatite of the composition by weight
Stone accelerates to 240-300r/min, continues to stir 20-30min, obtains mixture, then the potassium chloride of the composition by weight is added
Enter into its 15-20 parts of purified water, stir evenly abundant dissolution, Klorvess Liquid is made, then again delays Klorvess Liquid
Slowly it is added in mixture, is evenly stirred until that mixture becomes paste, after natural air drying, is ground into 30-40 mesh powder, i.e.,
The heavy metal stabilizer is made.
Further, the improver is by adding microbiological antiseptic and liquid microbe fertilizer in microbial inoculum
It is made, wherein antimicrobial preservation agent content is 10-20%, and liquid microbe fertilizer content is 15-25%, the microbial inoculum
It is bacillus subtilis bacterium solution, the subtilin generated during bacillus subtilis thalli growth, polymyxins, mildew making
Element, gramicidins isoreactivity substance, these active materials have apparent suppression to the conditioned pathogen of pathogenic bacteria or autogenous infection
Production is used, wherein bacterium solution viable count is greater than 4,000,000,000/milliliter after fermentation, the microbiological antiseptic is malto-oligosaccharide.
Further, the liquid microbe fertilizer is will to crush after the harvesting of fresh and tender straw or like vegetable, partial size 1-
Then 2mm is added bacillus amyloliquefaciens powder according to the volume ratio of 1:500-800, ferments, fermentation temperature is 25-35 DEG C
Between, it ferments 5-7 days in intermission aerobic environment, then cleaned with 120 mesh screens, squeezing fermentation material and obtaining liquid is that liquid is micro-
Bio-feritlizer.
Compared with prior art, the method have the advantages that: by vertical sampling and horizontal sampling to soil
In content of beary metal value carry out more accurate measurement, animal bone powder has very heavy metal ion in the heavy metal stabilizer of addition
Good suction-operated, sodium dihydrogen phosphate, sodium lignin sulfonate, potassium chloride, hydroxyapatite comprehensive function can be with curing heavy metals
The chemical activity of ion is adsorbed it and is absorbed afterwards with other biological nutriment by the rhizome of artemisia selengensis, soil improvement agent is added,
Under microorganism isoreactivity material effect, inhibit soil in harmful bacteria, liquid microbe fertilizer improve soil fertility and
Growth activity.Phytoremediation, physical chemistry reparation, soil function are improved synergy by method of the invention, utilize microorganism
Heavy-metal contaminated soil is effectively administered in the measures such as fermentation, liquid fertilization.
Specific embodiment
With reference to embodiment come to the present invention be further described in detail.
Embodiment 1: a method of administering heavy-metal contaminated soil, comprising the following steps:
(1) heavy metal analysis: multizone Stratified Sampling is carried out in the soil containing heavy metal for needing to repair, samples path
Including vertical sampling and horizontal sampling, content of beary metal detection then is carried out with atomic absorption spectrography (AAS) to sample, according to detection
As a result the content of beary metal in soil is divided into single abatement modules according to different level ranges, then to different weights
Tenor module takes the resolution of classification；
(2) heavy metal is stablized: the abatement modules that step (1) divides being mutually isolated, abatement modules size is the length of 2*3m
Square shape, area of isolation width are 30cm, remove the sundries on surface in soil, and heavy metal is uniformly sprayed to upper soll layer and is stablized
The volume ratio of agent, spraying amount and soil is 1:500, and then by soil scarifying, scarifying depth is 15cm, and spray 10min, is then made
It is covered with film, after to keep the soil moisture be 25 DEG C, normal illumination 2 days, takes down film, scarifying soil is to fluffy again；
(3) root system of plant adsorbs: the fluffy soil that (2) are obtained applies high-quality decomposed muck, 3000 public affairs of applying fertilizer per acre
Jin, is made into the high ridge of 0.8m wide, digs out artemisia selengensis stalwartness subterranean stem, be cut into the segment of 2cm long, by its shallow embedding in soil, every nest 3
Section, the populated regions size of every nest are 50*50cm, are embedded in underground, and deep about 6cm sprinkles profoundly water irrigation, keeps ground moistening, temperature
Control is being 25 DEG C, uses 5 kilograms of urea per acre during irrigation, artemisia selengensis growth period carries out the prevention and control of plant diseases, pest control, plant height 20cm
Shi Caishou cuts off tender stem flush with ground, plough cut weeds, promote artemisia selengensis root system can Rapid development, through measurement underground rhizome along weight
It when heart direction overburden depth reaches 20cm, ploughs and removes artemisia selengensis rhizome, cleaning soil, appropriate ventilation, reduces soil moisture daily；
(4) improver is administered: soil improvement agent being mixed with water according to the volume ratio of 1:120, is mixing uniformly to form and changes
Proportioned improver aqueous solution, is injected into soil, the injection of each injection orifice by kind agent aqueous solution by soil injector
Amount is 400ml, and it is 80cm, depth 20cm that injection radiation areas, which are diameter, and injection depth is more than to plough to plant layer, after the completion of injection
Oxidizing gas oxygen is passed through in each injection orifice, the ventilatory capacity of each injection orifice is 2L, duration of ventilation 3min, is made living in soil
Property by force not by plant adsorb metal ion gradually release energy, do not generate chemical affect, controlled at 20 DEG C, venting process
It is closed for 24 hours after, plough a field harrowing a field, that is, realize heavy-metal contaminated soil reparation.
Wherein, the vertical sampling refers to the soil for taking arable layer 10cm, and the horizontal sampling refers to sample
Centered on point, six samples are taken within the scope of radius about 40cm altogether, can be averaged to the content of beary metal value in soil, thus more
Add the content of beary metal range for accurately dividing soil.The composition by weight of the raw material of the heavy metal stabilizer are as follows: Animal Bone
30 parts of powder, 20 parts of sodium dihydrogen phosphate, 5 parts of sodium lignin sulfonate, 4 parts of potassium chloride, 6 parts of hydroxyapatite, preparation method is will
Animal bone is dried after rejecting impurity, using crushing and crushing, is crossed 60 meshes, is placed in machine mixer, first with 120r/min
Revolving speed, stirring after five minutes, be separately added into the sodium dihydrogen phosphate, sodium lignin sulfonate, hydroxyapatite of the composition by weight,
240r/min is accelerated to, continues to stir 20min, obtains mixture, then the potassium chloride of the composition by weight is added to its 15 times
Purified water in, stir evenly abundant dissolution, Klorvess Liquid be made, Klorvess Liquid is then slowly added into mixture again
In, it is evenly stirred until that mixture becomes paste, after natural air drying, is ground into 30 mesh powders, obtain the heavy metal
Stabilizer.The improver is made of addition microbiological antiseptic and liquid microbe fertilizer in microbial inoculum, wherein
Antimicrobial preservation agent content is 10%, and liquid microbe fertilizer content is 15%, and the microbial inoculum is bacillus subtilis
Bacterium solution, subtilin, polymyxins, nystatin, gramicidins that bacillus subtilis thalli growth generates in the process etc. are living
Property substance, these active materials have apparent inhibiting effect to the conditioned pathogen of pathogenic bacteria or autogenous infection, wherein fermenting
Bacterium solution viable count is greater than 4,000,000,000/milliliter afterwards, and the microbiological antiseptic is malto-oligosaccharide.The liquid microbe fertilizer
It is that will be crushed after the harvesting of fresh and tender straw or like vegetable, then solution starch gemma bar is added according to the volume ratio of 1:800 in partial size 1mm
Bacterium powder, ferments, and fermentation temperature is to ferment 5 days, then cleaned with 120 mesh screens, squeeze in intermission aerobic environment between 25 DEG C
Pressing fermentation material to obtain liquid is liquid microbe fertilizer.
Embodiment 2: a method of administering heavy-metal contaminated soil, comprising the following steps:
(1) heavy metal analysis: multizone Stratified Sampling is carried out in the soil containing heavy metal for needing to repair, samples path
Including vertical sampling and horizontal sampling, content of beary metal detection then is carried out with atomic absorption spectrography (AAS) to sample, according to detection
As a result the content of beary metal in soil is divided into single abatement modules according to different level ranges, then to different weights
Tenor module takes the resolution of classification；
(2) heavy metal is stablized: the abatement modules that step (1) divides being mutually isolated, abatement modules size is the length of 2*3m
Square shape, area of isolation width are 40cm, remove the sundries on surface in soil, and heavy metal is uniformly sprayed to upper soll layer and is stablized
The volume ratio of agent, spraying amount and soil is 1:400, and then by soil scarifying, scarifying depth is 20cm, and spray 15min, is then made
It is covered with film, after to keep the soil moisture be 30 DEG C, normal illumination 2 days, takes down film, scarifying soil is to fluffy again；
(3) root system of plant adsorbs: the fluffy soil that (2) are obtained applies high-quality decomposed muck, 3000 public affairs of applying fertilizer per acre
Jin, is made into the high ridge of 0.9m wide, digs out artemisia selengensis stalwartness subterranean stem, be cut into the segment of 2.5cm long, by its shallow embedding in soil, often
3 sections of nest, the populated regions size of every nest is 50*50cm, is embedded in underground, and deep about 7cm sprinkles profoundly water irrigation, keeps ground moistening, temperature
Degree control is being 27.5 DEG C, uses 7.5 kilograms of urea per acre during irrigation, artemisia selengensis growth period carries out the prevention and control of plant diseases, pest control, strain
Harvested when high 22.5cm, tender stem flush with ground cut off, plough cut weeds, promote artemisia selengensis root system can Rapid development, through measure underground
It when rhizome reaches 25cm along center of gravity direction overburden depth, ploughs and removes artemisia selengensis rhizome, cleaning soil, appropriate ventilation, reduces daily
Soil moisture；
(4) improver is administered: soil improvement agent being mixed with water according to the volume ratio of 1:100, is mixing uniformly to form and changes
Proportioned improver aqueous solution, is injected into soil, the injection of each injection orifice by kind agent aqueous solution by soil injector
Amount is 500ml, and it is 90cm, depth 25cm that injection radiation areas, which are diameter, and injection depth is more than to plough to plant layer, after the completion of injection
Oxidizing gas oxygen is passed through in each injection orifice, the ventilatory capacity of each injection orifice is 2.5L, and duration of ventilation 4min makes in soil
The active strong metal ion not by plant absorption gradually releases energy, and does not generate chemical affect, controlled at 25 DEG C, ventilated
Journey it is closed for 24 hours after, plough a field harrowing a field, that is, realize heavy-metal contaminated soil reparation.
Wherein, the vertical sampling refers to the soil for taking arable layer 20cm, and the horizontal sampling refers to sample
Centered on point, six samples are taken within the scope of radius about 50cm altogether, can be averaged to the content of beary metal value in soil, thus more
Add the content of beary metal range for accurately dividing soil.The composition by weight of the raw material of the heavy metal stabilizer are as follows: Animal Bone
40 parts of powder, 30 parts of sodium dihydrogen phosphate, 6.5 parts of sodium lignin sulfonate, 5 parts of potassium chloride, 8 parts of hydroxyapatite, preparation method are
It is dried after animal bone is rejected impurity, using crushing and crushing, crosses 60 meshes, be placed in machine mixer, first with 150r/
The revolving speed of min is separately added into the sodium dihydrogen phosphate, sodium lignin sulfonate, hydroxyl phosphorus of the composition by weight after stirring 7.5 minutes
Lime stone accelerates to 270r/min, continues to stir 25min, obtains mixture, then the potassium chloride of the composition by weight is added to it
In 17.5 times of purified water, abundant dissolution is stirred evenly, Klorvess Liquid is made, is then again slowly added into Klorvess Liquid
It in mixture, is evenly stirred until that mixture becomes paste, after natural air drying, is ground into 35 mesh powders, obtain described
Heavy metal stabilizer.The improver is by adding microbiological antiseptic and liquid microbe fertilizer system in microbial inoculum
At wherein antimicrobial preservation agent content is 15%, and liquid microbe fertilizer content is 20%, and the microbial inoculum is withered grass bud
Spore bacillus bacterium solution, the subtilin generated during bacillus subtilis thalli growth, polymyxins, nystatin, brevibacterium
Peptide isoreactivity substance, these active materials have apparent inhibiting effect to the conditioned pathogen of pathogenic bacteria or autogenous infection,
Bacterium solution viable count is greater than 4,000,000,000/milliliter after middle fermentation, and the microbiological antiseptic is malto-oligosaccharide.The micro- life of the liquid
Object fertilizer is will to crush after the harvesting of fresh and tender straw or like vegetable, then Xie Dian is added according to the volume ratio of 1:650 in partial size 1.5mm
Afnyloliquefaciens powder, ferments, and fermentation temperature is to ferment 6 days in intermission aerobic environment, then between 30 DEG C with 120 mesh mistakes
Filter out it is miscellaneous, squeeze fermentation material obtain liquid be liquid microbe fertilizer.
Embodiment 3: a method of administering heavy-metal contaminated soil, comprising the following steps:
(1) heavy metal analysis: multizone Stratified Sampling is carried out in the soil containing heavy metal for needing to repair, samples path
Including vertical sampling and horizontal sampling, content of beary metal detection then is carried out with atomic absorption spectrography (AAS) to sample, according to detection
As a result the content of beary metal in soil is divided into single abatement modules according to different level ranges, then to different weights
Tenor module takes the resolution of classification；
(2) heavy metal is stablized: the abatement modules that step (1) divides being mutually isolated, abatement modules size is the length of 2*3m
Square shape, area of isolation width are 50cm, remove the sundries on surface in soil, and heavy metal is uniformly sprayed to upper soll layer and is stablized
The volume ratio of agent, spraying amount and soil is 1:300, and then by soil scarifying, scarifying depth is 25cm, and spray 20min, is then made
It is covered with film, after to keep the soil moisture be 35 DEG C, normal illumination 2 days, takes down film, scarifying soil is to fluffy again；
(3) root system of plant adsorbs: the fluffy soil that (2) are obtained applies high-quality decomposed muck, 3000 public affairs of applying fertilizer per acre
Jin, is made into the high ridge of 1m wide, digs out artemisia selengensis stalwartness subterranean stem, be cut into the segment of 3cm long, by its shallow embedding in soil, every nest 3
Section, the populated regions size of every nest are 50*50cm, are embedded in underground, and deep about 8cm sprinkles profoundly water irrigation, keeps ground moistening, temperature
Control is being 30 DEG C, uses 10 kilograms of urea per acre during irrigation, artemisia selengensis growth period carries out the prevention and control of plant diseases, pest control, plant height 25cm
Shi Caishou cuts off tender stem flush with ground, plough cut weeds, promote artemisia selengensis root system can Rapid development, through measurement underground rhizome along weight
It when heart direction overburden depth reaches 30cm, ploughs and removes artemisia selengensis rhizome, cleaning soil, appropriate ventilation, reduces soil moisture daily；
(4) improver is administered: soil improvement agent being mixed with water according to the volume ratio of 1:80, improvement is mixing uniformly to form
Proportioned improver aqueous solution is injected into soil, the injection volume of each injection orifice by agent aqueous solution by soil injector
For 600ml, it is 100cm, depth 30cm that inject radiation areas, which be diameter, and injection depth is more than to plough to plant layer, after the completion of injection
Oxidizing gas oxygen is passed through in each injection orifice, the ventilatory capacity of each injection orifice is 3L, duration of ventilation 5min, is made living in soil
Property by force not by plant adsorb metal ion gradually release energy, do not generate chemical affect, controlled at 30 DEG C, venting process
It is closed for 24 hours after, plough a field harrowing a field, that is, realize heavy-metal contaminated soil reparation.
Wherein, the vertical sampling refers to the soil for taking arable layer 30cm, and the horizontal sampling refers to sample
Centered on point, six samples are taken within the scope of radius about 60cm altogether, can be averaged to the content of beary metal value in soil, thus more
Add the content of beary metal range for accurately dividing soil.The composition by weight of the raw material of the heavy metal stabilizer are as follows: Animal Bone
50 parts of powder, 40 parts of sodium dihydrogen phosphate, 8 parts of sodium lignin sulfonate, 6 parts of potassium chloride, 10 parts of hydroxyapatite, preparation method is will
Animal bone is dried after rejecting impurity, using crushing and crushing, is crossed 60 meshes, is placed in machine mixer, first with 180r/min
Revolving speed, stirring after ten minutes, be separately added into the sodium dihydrogen phosphate, sodium lignin sulfonate, hydroxyapatite of the composition by weight,
300r/min is accelerated to, continues to stir 30min, obtains mixture, then the potassium chloride of the composition by weight is added to its 20 times
Purified water in, stir evenly abundant dissolution, Klorvess Liquid be made, Klorvess Liquid is then slowly added into mixture again
In, it is evenly stirred until that mixture becomes paste, after natural air drying, is ground into 40 mesh powders, obtain the heavy metal
Stabilizer.The improver is made of addition microbiological antiseptic and liquid microbe fertilizer in microbial inoculum, wherein
Antimicrobial preservation agent content is 20%, and liquid microbe fertilizer content is 25%, and the microbial inoculum is bacillus subtilis
Bacterium solution, subtilin, polymyxins, nystatin, gramicidins that bacillus subtilis thalli growth generates in the process etc. are living
Property substance, these active materials have apparent inhibiting effect to the conditioned pathogen of pathogenic bacteria or autogenous infection, wherein fermenting
Bacterium solution viable count is greater than 4,000,000,000/milliliter afterwards, and the microbiological antiseptic is malto-oligosaccharide.The liquid microbe fertilizer
It is that will be crushed after the harvesting of fresh and tender straw or like vegetable, then solution starch gemma bar is added according to the volume ratio of 1:500 in partial size 2mm
Bacterium powder, ferments, and fermentation temperature is to ferment 7 days, then cleaned with 120 mesh screens, squeeze in intermission aerobic environment between 35 DEG C
Pressing fermentation material to obtain liquid is liquid microbe fertilizer.
The agricultural land soil of certain industrial area is combined specifically to be administered below according to the method for three of the above embodiment:
After agricultural land soil sample near certain collected industrial area, measured using atomic absorption spectrography (AAS), wherein
It is primarily present Pb in the sample measured, the pollution of the various heavies such as Cr, Cu, content is higher, wherein Pb in soil before handling,
The content of Cr, Cu are respectively 628mg/kg, 245mg/kg, 85.36mg/kg, use the embodiment of the present invention 1, embodiment respectively
2, after the method for embodiment 3 is administered, and detection is sampled in the same way to the soil after improvement, testing result is such as
Following table:
| Administering method | Pb(mg/kg) | Cr(mg/kg) | Cu(mg/kg) |
| Embodiment 1 | 23.8 | 66.2 | 15.8 |
| Embodiment 2 | 18.3 | 56.8 | 12.5 |
| Embodiment 3 | 21.4 | 65.1 | 14.3 |
| (GB15618-1995) standard value | 35 | 90 | 35 |
In conclusion method of the invention is infected with good therapeutic effect to heavy metal-polluted in soil, can effectively drop
Content of beary metal in low soil reaches within standard limit value.
It should be noted last that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although ginseng
It is described the invention in detail according to preferred embodiment, those skilled in the art should understand that, it can be to the present invention
Technical solution be modified or replaced equivalently, without departing from the spirit and scope of the technical solution of the present invention.
Claims (7)
1. a kind of method for administering heavy-metal contaminated soil, which comprises the following steps:
(1) heavy metal analysis: multizone Stratified Sampling is carried out in the soil containing heavy metal for needing to repair, sampling path includes
Vertical sampling and horizontal sampling, then carry out content of beary metal detection with atomic absorption spectrography (AAS) to sample, according to testing result
Content of beary metal in soil is divided into single abatement modules according to different level ranges, then to different heavy metals
Content module takes the resolution of classification；
(2) heavy metal is stablized: the abatement modules that step (1) divides being mutually isolated, abatement modules size is the rectangle of 2*3m
Shape, area of isolation width are 30-50cm, remove the sundries on surface in soil, uniformly spray heavy metal stabilizer to upper soll layer,
Spraying amount and the volume ratio of soil are 1:300-500, and then by soil scarifying, scarifying depth is 15-25cm, and spray 10-
Then 20min is covered using film, after the holding soil moisture is 25-35 DEG C, normal illumination 2 days, take down film, again scarifying
Soil is to fluffy；
(3) root system of plant adsorbs: the fluffy soil that (2) are obtained applies high-quality decomposed muck, applies fertilizer 3000 kilograms, does per acre
At the high ridge of 0.8-1m wide, artemisia selengensis stalwartness subterranean stem is dug out, the segment of 2-3cm long is cut into, by its shallow embedding in soil, every nest 3
Section, the populated regions size of every nest are 50*50cm, are embedded in underground, and deep about 6-8cm sprinkles profoundly water irrigation, keep ground moistening, temperature
Degree control is being 25-30 DEG C, uses 5-10 kilograms of urea per acre during irrigation, and artemisia selengensis growth period carries out the prevention and control of plant diseases, pest control,
Harvested when plant height 20-25cm, tender stem flush with ground cut off, plough cut weeds, promote artemisia selengensis root system can Rapid development, through measurement ground
When lower rhizome reaches 20-30cm along center of gravity direction overburden depth, ploughs and remove artemisia selengensis rhizome, cleaning soil, appropriate ventilation daily,
Reduce soil moisture；
(4) improver is administered: soil improvement agent being mixed with water according to the volume ratio of 1:80-120, improvement is mixing uniformly to form
Proportioned improver aqueous solution is injected into soil, the injection volume of each injection orifice by agent aqueous solution by soil injector
For 400-600ml, injection radiation areas are that diameter is 80-100cm, depth 20-30cm, and injection depth is more than to plough to plant layer, is infused
It is passed through oxidizing gas in each injection orifice after the completion of penetrating, releases that the strong metal ion not by plant absorption of activity in soil gradually
Exoergic amount, does not generate chemical affect, controlled at 20-30 DEG C, venting process it is closed for 24 hours after, plough a field harrowing a field, that is, realize
The reparation of heavy-metal contaminated soil.
2. a kind of method for administering heavy-metal contaminated soil as described in claim 1, which is characterized in that the vertical sampling
Refer to the soil for taking arable layer 0-30cm, the horizontal sampling refers to centered on sample point, radius about 40-60cm range
Six samples are inside taken altogether.
3. a kind of method for administering heavy-metal contaminated soil as described in claim 1, which is characterized in that the heavy metal is steady
Determine the composition by weight of the raw material of agent are as follows: 30-50 parts of animal bone powder, 20-40 parts of sodium dihydrogen phosphate, 5-8 parts of sodium lignin sulfonate, chlorine
Change potassium 4-6 parts, 6-10 parts of hydroxyapatite.
4. a kind of method for administering heavy-metal contaminated soil as claimed in claim 3, which is characterized in that the heavy metal is steady
The preparation method for determining agent is to dry after animal bone is rejected impurity, using crushing and crushing, crosses 60 meshes, is placed in mechanical stirring
In machine, first with the revolving speed of 120-180r/min, after stirring 5-10 minutes, be separately added into the composition by weight sodium dihydrogen phosphate,
Sodium lignin sulfonate, hydroxyapatite, accelerate to 240-300r/min, continue to stir 20-30min, obtain mixture, then by institute
The potassium chloride for stating composition by weight is added in its 15-20 parts of purified water, stirs evenly abundant dissolution, Klorvess Liquid is made,
Then Klorvess Liquid is slowly added into mixture again, is evenly stirred until that mixture becomes paste, after natural air drying, powder
It is broken into 30-40 mesh powder, obtains the heavy metal stabilizer.
5. a kind of method for administering heavy-metal contaminated soil as described in claim 1, which is characterized in that the improver is
It is made of addition microbiological antiseptic and liquid microbe fertilizer in microbial inoculum, wherein antimicrobial preservation agent content is 10-
20%, liquid microbe fertilizer content is 15-25%, and the microbial inoculum is bacillus subtilis bacterium solution, wherein after fermentation
Bacterium solution viable count is greater than 4,000,000,000/milliliter, and the microbiological antiseptic is malto-oligosaccharide.
6. a kind of method for administering heavy-metal contaminated soil as claimed in claim 5, which is characterized in that the micro- life of the liquid
Object fertilizer is will to crush after the harvesting of fresh and tender straw or like vegetable, then partial size 1-2mm is added according to the volume ratio of 1:500-800
Bacillus amyloliquefaciens powder, ferments, and fermentation temperature is to ferment 5-7 days in intermission aerobic environment, then use between 25-35 DEG C
The removal of impurities of 120 mesh screens, squeezing fermentation material and obtaining liquid is liquid microbe fertilizer.
7. a kind of method for administering heavy-metal contaminated soil as described in claim 1, which is characterized in that the oxidisability gas
Body is oxygen, and the ventilatory capacity of each injection orifice is 2-3L, duration of ventilation 3-5min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611111307.4A CN106825007B (en) | 2016-12-06 | 2016-12-06 | A method of administering heavy-metal contaminated soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611111307.4A CN106825007B (en) | 2016-12-06 | 2016-12-06 | A method of administering heavy-metal contaminated soil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106825007A CN106825007A (en) | 2017-06-13 |
| CN106825007B true CN106825007B (en) | 2019-10-18 |
Family
ID=59146426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611111307.4A Active CN106825007B (en) | 2016-12-06 | 2016-12-06 | A method of administering heavy-metal contaminated soil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106825007B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107321783B (en) * | 2017-08-02 | 2020-01-21 | 深圳市太合心铅中毒防治研究中心 | Method for improving lead-polluted soil |
| CN108144959A (en) * | 2018-02-13 | 2018-06-12 | 四川蓉加川大环保工程咨询设计有限公司 | It is a kind of to utilize the biological prosthetic iron content of nano material and the method for aluminium composite pollution soil |
| CN109020748A (en) * | 2018-07-25 | 2018-12-18 | 南京格洛特环境工程股份有限公司 | Heavy metal soil-repairing agent |
| CN108607874A (en) * | 2018-07-30 | 2018-10-02 | 青岛冠中生态股份有限公司 | A kind of restorative procedure of north abandoned location of industry and mining heavy metal pollution |
| CN109821876A (en) * | 2019-01-24 | 2019-05-31 | 湖州师范学院 | A kind of technique for administering heavy metal pollution of soil |
| CN110252798A (en) * | 2019-07-23 | 2019-09-20 | 北京南科大蓝色科技有限公司 | A kind of heavy-metal contaminated soil complex repairation medicament and its application method and purposes |
| CN111468527B (en) * | 2020-05-08 | 2022-03-18 | 万源生态股份有限公司 | Method for building landscape of moderately and slightly heavy metal contaminated soil |
| CN113145625B (en) * | 2021-05-07 | 2022-07-26 | 浙江工业大学 | Method for treating heavy metals in underground water by using biological manganese oxide and hydroxyapatite |
| CN113498649B (en) * | 2021-08-05 | 2022-03-22 | 南京恒宝田功能农业产业研究院有限公司 | Strong reduction treatment method for enriching selenium and reducing cadmium in soil |
| CN113773845A (en) * | 2021-09-30 | 2021-12-10 | 广西壮族自治区农业科学院 | Sugarcane leaf degradation soil conditioner and preparation method and application thereof |
| CN117900254A (en) * | 2024-03-18 | 2024-04-19 | 河北雄安红鲤鱼环保科技有限公司 | Method for in-situ treatment of heavy metals in polluted soil |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104307859B (en) * | 2014-11-05 | 2016-08-17 | 杭州师范大学 | A kind of method of the micro-pollution of restoration facilities Heavy Metal in Vegetable Farm Soil |
| CN105149343B (en) * | 2015-09-30 | 2018-07-24 | 上海伊尔庚环境工程有限公司 | A kind of restorative procedure of heavy-metal contaminated soil |
| CN105149341A (en) * | 2015-09-30 | 2015-12-16 | 河南行知专利服务有限公司 | Method for restoring sludge land heavy metal contaminated soil |
-
2016
- 2016-12-06 CN CN201611111307.4A patent/CN106825007B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106825007A (en) | 2017-06-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106825007B (en) | A method of administering heavy-metal contaminated soil | |
| CN104987223B (en) | It is a kind of using Chinese medicine slag as insect prevention disease-resistant organic fertilizer of raw material and preparation method thereof | |
| CN103819237B (en) | Tobacco special microorganism is fertile and preparation method thereof | |
| CN102876576B (en) | Acidic soil conditioner, and preparation method and application thereof | |
| KR20210057812A (en) | Materials and methods for improving carbon utilization and/or sequestration as well as reducing harmful atmospheric gases | |
| CN102206494B (en) | Modifying agent capable of passivating vegetable garden soil heavy metal and preparation method and applying method thereof | |
| CN107619308A (en) | Prevent and treat root-knot nematode biological organic fertilizer and preparation method and application | |
| CN104854994B (en) | A kind of method of fast lifting organic agriculture soil productivity | |
| CN103518781B (en) | Core bio-control bacteria and organic fertilizer containing the core bio-control bacteria | |
| US20170197891A1 (en) | Quantum carrier for improving soil function and method of preparation thereof | |
| CN104286032B (en) | The preparation method of a kind of yellow basket bacterium spore powder, yellow basket bacterium wettable powder and preparation method thereof | |
| CN104370623A (en) | Potato special-purpose fertilizer and manufacturing and using methods thereof | |
| CN109761715A (en) | A kind of Queensland nut special bio bacterial manure and preparation method thereof | |
| CN106278654A (en) | A kind of overcome the soil remediation fertilizer of Rhizoma Zingiberis Recens continuous cropping obstacle, preparation method and its usage | |
| CN106242829A (en) | A kind of overcome the soil remediation fertilizer of Radix Salviae Miltiorrhizae continuous cropping obstacle, preparation method and its usage | |
| CN104230532A (en) | Controlled-release fertilizer as well as producing method and using method of controlled-release fertilizer | |
| CN108034620A (en) | One plant of bacillus megaterium bacterial strain, peanut drop cadmium agent and its application | |
| CN111436340A (en) | Safe production method of rice for medium and heavy cadmium-polluted rice field soil | |
| CN106831170A (en) | It is a kind of for turn can a fertilizer, increase conditioning agent and its preparation method and application of soil fertility | |
| CN102775230B (en) | Large-element water-soluble organic fertilizer and method for preparing same | |
| CN106365729A (en) | Soil remediation organic fertilizer for overcoming panax notoginseng continuous cropping obstruction, preparation method and application of soil remediation organic fertilizer | |
| CN106748286A (en) | A kind of biological organic fertilizer for perchlorate of degrading and preparation method thereof | |
| CN106380269A (en) | Soil remediation organic fertilizer for overcoming watermelon replantation obstacle, preparation method thereof and application thereof | |
| CN110218678A (en) | Anti- continuous cropping soil renovation agent and preparation method thereof | |
| CN106673736A (en) | Microbial decomposing agent and humus prepared thereby |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |