CN108144959A - It is a kind of to utilize the biological prosthetic iron content of nano material and the method for aluminium composite pollution soil - Google Patents
It is a kind of to utilize the biological prosthetic iron content of nano material and the method for aluminium composite pollution soil Download PDFInfo
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- CN108144959A CN108144959A CN201810148809.7A CN201810148809A CN108144959A CN 108144959 A CN108144959 A CN 108144959A CN 201810148809 A CN201810148809 A CN 201810148809A CN 108144959 A CN108144959 A CN 108144959A
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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
- B09C1/10—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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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Abstract
The invention discloses a kind of using the biological prosthetic iron content of nano material and the method for aluminium composite pollution soil, including following operating procedure：Including following operating procedure：1) complex microbial inoculum is sprayed around the iron content of plant to be moved into and aluminium rhizosphere soil；2) plant to be moved into is soaked in complex microbial inoculum 23-25 hours；Through it is above-mentioned 1), 2) after any one operating procedure, 3) plant is moved into plantation hole, iron content, the soil of aluminum pollution and the mixed soil of nanometer hydroxyapatite are added in the plantation hole of plant, after plant growing way is vigorous, it cradles aboveground vegetation part and plants leaf, remove iron and aluminium excessive in soil.By selecting Moses blastocyst and earth's surface blastocyst as complex microbial inoculum in the technical program; it is sprayed at around the rhizosphere soil of plant to be moved into; or for impregnating plant to be moved into; establish complex microbial inoculum and plants symbiotic relationship; the injury of heavy metal is protected the plants from, promotes plant growth.
Description
Technical field
The present invention relates to technical field of biological remediation, and in particular to a kind of to be mixed using the biological prosthetic iron content of nano material and aluminium
The method for closing contaminated soil.
Background technology
With the development of economy, farmland increasingly can't bear the heavy load as natural resources for the survival of mankind, environmental pollution
It is not only seriously polluted, but also jeopardize food security and the health of the mankind to agrarian zone with ecological disruption.Wherein, heavy metal pollution
Agricultural land soil is particularly acute, it has also become the important soil environmental problem that China faces.Heavy-metal contaminated soil have toxic it is big,
Difficult to degrade, easy accumulation characteristic can be enriched in soil and organism, entered human body by food chain, damaged health.With much money
Belong to contaminated soil particularity be it cannot by soil microbial degradation, accumulated in farmland to a certain extent afterwards to soil-
Botanical system, which generates, to be poisoned and destroys, and is had concealment, chronicity and irreversibility, is the important dirt for influencing ecology erroneous zone
Contaminate one of object.
In order to improve heavy metal pollution, the reparation of contaminated soil is extremely urgent.The trend complicated is presented in soil pollution, controls
Reason difficulty is big, and repairing efficiency is long.At present, the method for administering heavy metal pollution is mainly physics and chemical method, as chemical leaching,
Landfill, electrolysis, soil moved in improve the original improvement etc., although these methods significant effect in a short time, of high cost, easily form secondary pollution.
And biological prosthetic is using the activity of the vital metabolic of microorganism or plant, and the heavy metal in soil is enriched with or is extracted, and is led to
It crosses biological effect and changes the chemical form of heavy metal in the soil, heavy metal is made to fix or detoxify, reduces it in soil environment
Mobility and bioavailability.
Bioremediation technology mainly includes phytoremediation and microorganism remediation, and repairing effect is good, expense is low, is easily managed
With operating, not generating secondary pollution, thus the attention of people is increasingly subject to, is the most important developing direction of recovery technique.But profit
The key that pollution amelioration is carried out with plant is to find suitable ultraproduct to tire out or the platymiscium of resistance to a huge sum of money, however super enriching plant is usually raw
Object amount is low, and growth is slow, selective to metal, is not suitable for the improvement of various heavy combined pollution, limits plant and repair
Application of the recovering technology in terms of various heavy contaminated soil improvement, so plant-microorganism combines repairing polluted soil technology
There is still a need for it further improves.
Based on this, research and develop and a kind of utilized the biological prosthetic iron content of nano material and the method for aluminium composite pollution soil.
Invention content
Present invention offer is a kind of using the biological prosthetic iron content of nano material and the method for aluminium composite pollution soil, utilizes nanometer
The method that material hydroxyapatite strengthens Radix Ophiopogonis grass and complex microbial inoculum joint repairs iron and aluminium composite pollution soil, with peace
Entirely, efficiently, economic, simple and practicable environmental-friendly mode reduce iron and aluminum concentration, improve pollution removal efficiency.
The present invention is achieved through the following technical solutions：
It is a kind of using the biological prosthetic iron content of nano material and the method for aluminium composite pollution soil, including following operating procedure：
1) iron content in plant to be moved into, spray complex microbial inoculum around aluminum pollution rhizosphere soil；
2) plant to be moved into is soaked in complex microbial inoculum 23-25 hours；
Through it is above-mentioned 1), 2) after any one operating procedure,
3) plant is moved into plantation hole, iron content, aluminum pollution soil and nano hydroxyapatite is added in the plantation hole of plant
In the mixed soil of lime stone, after plant growing way is vigorous, cradles aboveground vegetation part and plant leaf, remove excessive iron and aluminium in soil.
Using complex microbial inoculum is sprayed around iron content, aluminum pollution rhizosphere soil in the technical program, the present invention selects
Complex microbial inoculum in microorganism have very strong affinity absorption property to iron, aluminium heavy metal, be inventor by long-term
Two kinds of microorganisms with synergy that experimental study screens, two kinds of bacterium are used in combination with than a kind of bacterium is used alone
The effect that good many times of function and effect, the two are mutually promoted, and have greatly reinforced the fixation to iron aluminium, conversion, this hair of detoxication
Microorganism described in bright in complex microbial inoculum can form mycorhiza with plant symbiosis, and the mycelium of mycorhiza surface extension can be big
The big absorption area for increasing root system can be that plant absorption transmits nutriment, and can synthesize plant hormone, promote plant growth.
The activity of mycorrhizal fungi can also improve plant rhizosphere microenvironment, improve stress resistance of plant.
The present invention herein in connection with used nanometer hydroxyapatite to it is biological prosthetic effect strengthen.Hydroxyapatite is one
Heavy metal iron, aluminium from soil surface are desorbed, increase the concentration of heavy metal in the soil liquid by kind biosurfactant, from
And it is that plant absorption polluted heavy metals create conditions.But the selected nanometer hydroxyapatite of processing method of the present invention with it is traditional
Hydroxyapatite surface activating agent, which is compared, has the characteristics of grain size is small, large specific surface area, reactivity is high, therefore it has more preferably
Bioremediation heavy metal pollution effect.It is combined reparation combined use with plant-microorganism can greatly reinforce life
Object repairing effect.
Preferably, the complex microbial inoculum is to be purchased from the Moses blastocyst of Culture Collection Center and earth's surface blastocyst,
Complex microbial inoculum is Moses blastocyst, earth's surface blastocyst presses bacteria suspension mixed volume ratio 1：1 is obtained by mixing.
Complex microbial inoculum preservation position in the technical program：Beijing City Agriculture and Forestry Institute plant nutrient and the Study on Resources
Institute " arbuscular mycorrhizal fungi germplasm resource bank, BGC-GM, BGC-GV.
Complex microbial inoculum of the present invention includes Moses blastocyst and earth's surface blastocyst, and two kinds of strains of selection have
There is stronger iron aluminium heavy metal resistance, and according to bacteria suspension than 1：1 volume ratio is obtained by mixing, and bacteria suspension here refers to use
Oese takes a ring bacterium from the bacterium colony such as Moses blastocyst bacterium colony, earth's surface blastocyst bacterium colony of tablet or inclined-plane culture, is put into
In test tube equipped with sterile water or physiological saline, stirring obtains bacteria suspension.
Wherein, Moses blastocyst and earth's surface blastocyst are prior art products, can directly buy and obtain from Culture Collection Center
.Earth's surface blastocyst is selected to be formulated composite bacteria for, Moses blastocyst, there is two kinds of bacterium good collaboration to make together
With, it can mutually promote, greatly enhance anti-chemical combination resistance to iron aluminium, it is more preferable than individually using one of which effect, when selecting other
Strain can generate different antagonisms, greatly reduce the changing effect to heavy metal.
Preferably, it adds in the mixed soil of soil and nanometer hydroxyapatite, soil and receives in the plantation hole of plant
The mass ratio of rice hydroxyl lime stone is 1：1.
Preferably, complex microbial inoculum, the amount of sprinkling are sprayed around the iron content of plant to be implanted and aluminium rhizosphere soil
For each plant 20ml.
Preferably, containing in aluminium and iron soil, aluminum concentration is 0-16000mg/kg, and concentration of iron is 0-6000mg/kg, with matter
Measure percentage meter.
Preferably, plant to be moved into, the plant that plant is soaked in complex microbial inoculum described in 24 hours are equal
For Radix Ophiopogonis grass.
Preferably, after plant growing way is vigorous, the frequency for periodically cradling aboveground vegetation part plant leaf is 1 year 2-4 times.
Preferably, the aboveground vegetation part cradled is uniformly processed, processing mode is filled or burned for refuse landfill.
Compared with prior art, the present invention it has the following advantages and advantages：
(1) by selecting Moses blastocyst and earth's surface blastocyst as complex microbial inoculum, sprinkling in the technical program
Around the rhizosphere soil of plant to be moved into or for impregnating plant to be moved into, should be built for complex microbial inoculum with plant
Vertical symbiosis, can protect the plants from the injury of heavy metal, so as to promote plant growth, improve plant growth amount, change weight
The chemical species of metal are conducive to plant and nutrient are absorbed from soil, so as to improve effect of the plant to heavy metal accumulation.
(2) it is mixed with soil as mixed soil using nanometer hydroxyapatite in the technical program, is added to plantation hole,
Then watering, fertilizing is carried out, what the addition of wherein nanometer hydroxyapatite promoted metal ion migrates conversion, improves green
In-situ immobilization effect.
(3) method using nano material bioremediation iron and aluminium composite pollution soil described in the technical program
In, to security landfill or burning that aboveground vegetation part is concentrated, which will not cause secondary pollution, repair simultaneously
Process will not destroy soil texture, and soil degradation and productivity decline because of caused by heavy metal pollution have improvement to make to soil
With.
(4) method using nano material bioremediation iron and aluminium composite pollution soil described in the technical program,
It is at low cost with significant Metal uptake concentration effect, easy to operate and popularization, and have significant environmental and social benefits.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiment, the present invention is made
Further to be described in detail, exemplary embodiment of the invention and its explanation are only used for explaining the present invention, are not intended as to this
The restriction of invention.
Embodiment 1：
First, the potting of simulation heavy-metal contaminated soil is established, specific method is：By FeSO4·7H2O and Al2(SO4)3·
18H2O analytical reagents is added to liquid in ordinary nutritional soil, abundant mixing, makes content of beary metal for aluminium 8000mg/kg, iron
3000mg/kg is used after placing 1 week, as experiment soil.
Then biological prosthetic, preparation before repairing is carried out to the Soil Utilization nano material of above-mentioned iron content and aluminium heavy metal pollution
Operation：Experiment soil 200g is taken, adds in nanometer hydroxyapatite 200g, mixing, as mixed soil.Moses blastocyst, earth's surface
Blastocyst presses bacteria suspension volume ratio 1：1 mixing, as complex microbial inoculum.
Specifically restorative procedure is：The above-mentioned micro- life prepared will be sprayed around the native rhizosphere soil of the experiment of plant to be moved into
Then plant is moved into plantation hole, the above-mentioned 200g composite soils prepared is added in the plantation hole of plant by object composite bacteria agent
Earth.
Here plant is Radix Ophiopogonis grass, plants one plant of Radix Ophiopogonis grass in each potting according to the method described above, repeats 10.
Radix Ophiopogonis, grass was cultivated at room temperature in the present embodiment, was irregularly watered according to soil moisture actual conditions, it is ensured that soil
Water tariff collection is in water-holding capacity 80% or so, after plant to be planted is grown 30 days, carries out toothing harvesting plant and ashing processing, measures plant
Internal and the heavy metal iron in soil, the content of aluminium.
Comparative example 1-1：
The present embodiment and embodiment 1 difference lies in：Control group 1-1 is set, by the Radix Ophiopogonis grass planting grown fine in not
In the iron content and the contaminated soil of aluminium that are handled through complex microbial inoculum and nanometer hydroxyapatite, per one plant of basin, 5 are repeated.
Remaining condition is same as Example 1.
Comparative example 1-2：
The present embodiment and embodiment 1 difference lies in：Control group 1-2 is set, and the Radix Ophiopogonis grass planting grown fine is in only passing through
In the iron content of complex microbial inoculum processing and the contaminated soil of aluminium, per one plant of basin, 10 basins are repeated.Remaining condition and embodiment 1
Identical, the type of complex microbial inoculum is same as Example 1.
Comparative example 1-3：
The present embodiment and embodiment 1 difference lies in：Control group 1-3 is set, the Radix Ophiopogonis grass to grow fine is planted in plantation
In hole, iron content, the soil of aluminum pollution and the mixed soil of nanometer hydroxyapatite, i.e. 200g mixed soils are added in plantation hole
In.Per one plant of basin, complex microbial inoculum is added without, repeats 10 basins.Remaining condition is same as Example 1.
It is measured in embodiment 1, comparative example 1-1, comparative example 1-2, comparative example 1-3 in Radix Ophiopogonis cursive script, soil
Heavy metal iron and aluminium content are as follows in earth, such as the following table 1：
Note：Aluminium in Soil content value is in table：Heavy metal Al-single crystal end value after processing.
In embodiment 1：Under the invigoration effect of nanometer hydroxyapatite and the booster action of microbial composite bacteria, iron aluminium is answered
The growth of Radix Ophiopogonis grass is normal after being planted 30 days in conjunction contaminated soil, and blade such as minus green does not occur, withers by stress symptom.
The biomass of Radix Ophiopogonis grass is implemented obviously higher than comparison in the potting handled in embodiment 1 through nanometer hydroxyapatite
Unused microbial composite bacteria in the biological prosthetic control of unused nanometer hydroxyapatite processing and comparative example 1-3 in example 1-2
The biological prosthetic control of agent processing.In embodiment 1 in soil after nanometer hydroxyapatite is handled Radix Ophiopogonis grass aerial part dry weight
19% is increased under ground portion dry weight with not adding in the plant sample of nanometer hydroxyapatite in comparative example 1-2 respectively more
With 17%；24% and 22% being increased than not added in comparative example 1-3 the plant sample of microbial bacterial agent more；Compare embodiment
Plus the sample of microorganism and nanometer hydroxyapatite processing processing 49% and 42% not being increased in 1-1 more.
The heavy metal content in soil for not carrying out biological prosthetic processing in soil is basically unchanged, and is added in and is received in comparative example 1
Rice hydroxyapatite and complex microbial inoculum, which carry out the biological prosthetic soil aluminium content that is averaged, reduces 2730mg/kg, under iron
1610mg/kg drops, and non-plus nano hydroxyapatite carries out the biological prosthetic soil aluminium content that is averaged and reduces in example 1-2
1030mg/kg, iron have dropped 910mg/kg.Experiment proves that nanometer hydroxyapatite bioremediation is with obvious effects.The opposing party
Face, in embodiment 1-3 plus complex microbial inoculum only adds in nanometer hydroxyapatite and carries out biological prosthetic soil and is averaged aluminium
Content only reduces 1229mg/kg, and iron has dropped 860mg/kg.Experiment proves that complex microbial inoculum promotes biological prosthetic effect
Significantly.
Embodiment 2：
First, the potting of simulation heavy-metal contaminated soil is established, specific method is：By FeSO4·7H2O and Al2(SO4)3·
18H2O analytical reagents is added to liquid in ordinary nutritional soil, abundant mixing, makes content of beary metal for aluminium 16000mg/kg,
Iron 6000mg/kg is used after placing 1 week, as experiment soil.
Then it is biological prosthetic to the Soil Utilization nano material progress of above-mentioned iron content and aluminium heavy metal pollution, before biological prosthetic
Preparation operation be：Experiment soil 200g is taken, adds in nanometer hydroxyapatite 200g, mixing, as mixed soil.Earth's surface sacculus
Bacterium, Moses blastocyst press bacteria suspension volume ratio 1：1 prepares complex microbial inoculum.
Specifically biological renovation method is：Radix Ophiopogonis grass plant to be moved into is soaked in complex microbial inoculum 24 hours,
Then Radix Ophiopogonis grass is moved into plantation hole, 200g mixed soils is added in the plantation hole of plant in the basin of potting, treat plant
After growing way is vigorous, brake cuts aboveground vegetation part and plants leaf, removes iron and aluminium excessive in soil.Per one plant of basin, 10 are repeated.
Plant is cultivated at room temperature in the present embodiment, is irregularly watered according to soil moisture actual conditions, it is ensured that the soil water
Divide and be maintained at water-holding capacity 80% or so, after plant to be planted is grown 30 days, carry out toothing harvesting plant and ashing processing, measure plant
The content of heavy metal iron, aluminium in interior and soil.
Comparative example 2-1：
The present embodiment and comparative example 2 difference lies in：Control group 2-1, the Radix Ophiopogonis grass planting that will be grown fine are set
In the contaminated soil without the iron content and aluminium of complex microbial inoculum and nanometer hydroxyapatite processing, per one plant of basin, 5 are repeated
It is a.Remaining condition is same as Example 2.
Comparative example 2-2：
The present embodiment and comparative example 2 difference lies in：Control group 2-2, the Radix Ophiopogonis grass planting that will be grown fine are set
It is handled in only being impregnated 24 hours through complex microbial inoculum, the contaminated soil of iron content and aluminium without nanometer hydroxyapatite processing
In, per one plant of basin, repeat 10.Remaining condition is same as Example 2.
Comparative example 2-3：
The present embodiment and comparative example 2 difference lies in：Control group 2-3, the Radix Ophiopogonis grass planting that will be grown fine are set
In mixed soil, and Radix Ophiopogonis grass is only mixed without complex microbial inoculum immersion treatment by adding in 200g in plantation hole
Soil, remaining condition is same as Example 2, per one plant of basin, repeats 10.
It is measured in Radix Ophiopogonis cursive script, in soil in embodiment 2, comparative example 2-1, comparative example 2-2, embodiment 2-3
Heavy metal iron and aluminium content are as shown in table 2 below：
In embodiment 2 under the booster action of the invigoration effect of nanometer hydroxyapatite and complex microbial inoculum, iron content
The growth of Radix Ophiopogonis grass is normal after being planted 30 days in aluminium combined contamination soil, and blade such as minus green does not occur, withers by stress symptom.
The biomass of Radix Ophiopogonis grass is above comparative example 2-2 in the potting that nanometer hydroxyapatite is handled in embodiment 2
In the processing of unused nanometer hydroxyapatite biological prosthetic control, and answered simultaneously above microorganism unused in comparative example 2-3
Close the biological prosthetic control at microbial inoculum.
Radix Ophiopogonis grass aerial part dry weight and under ground portion dry weight are divided after nanometer hydroxyapatite is handled in 2 soil of embodiment
Not than plus the sample of microorganism and nanometer hydroxyapatite processing processing not increasing 45% He in comparative example 2-1 more
42%；Plant sample than not adding in nanometer hydroxyapatite in embodiment 2-2 improves 11% and 9%；Compare comparative example
Plus the plant sample of complex microbial inoculum 14% and 13% not being increased in 2-3 more.Plant growth-promoting rhizobacteria is in rhizosphere added by explanation
It interacts with Radix Ophiopogonis grass, the stress and nanometer hydroxyapatite for effectively having helped Radix Ophiopogonis grass resistance heavy metal have activated weight
Metal changes metal ion form, protects plant growth.
The heavy metal content in soil for not carrying out repair process in soil is basically unchanged, and has added nano hydroxyapatite in embodiment 2
Lime stone and microorganism, which carry out the biological prosthetic soil aluminium content that is averaged, reduces 6630mg/kg, and iron has dropped 2610mg/kg, and
Non- plus nano hydroxyapatite only adds in microbial inoculum and plants the soil aluminium content that is averaged of Radix Ophiopogonis grass and reduces in embodiment 2-2
5000mg/kg, iron are reduced only by 2060mg/kg.Experiment proves to add in nano-hydroxy-apatite under the conditions of high concentration iron aluminum pollution
Stone handled after can fortification of plants microbial association effect of plant restoration it is apparent.Do not add microbial composite bacteria in embodiment 2-3
Agent, which only adds in nanometer hydroxyapatite and plants the soil aluminium content that is averaged of Radix Ophiopogonis grass, reduces 3910mg/kg, and iron has dropped
2132mg/kg.Experiment proves that complex microbial inoculum bioremediation is with obvious effects.
Embodiment 3：
Using the method for field condition simulation heavy metal pollution of soil.In Sichuan Heishui County, Chinese medicine plants land used enclosure
Cross one piece of 10m2Soil, 50cm are deep.Surrounding is closed with barrier material, fills out local scene soil.Add in Heavy Metals point
It Wei not FeSO4·7H2O and Al2(SO4)3·18H2The solution of O, abundant mixing, stabilization measure content of beary metal after a week.Through surveying
Determine 12680mg/kg containing aluminium in soil, iron 4520mg/kg.
By Moses blastocyst and earth's surface blastocyst 1：After 1 mixing, the Radix Ophiopogonis grass roots portion grown fine is soaked in microorganism
In composite bacteria liquid after 24 hours, plant in manual simulation's iron, aluminum pollution enclosure soil in, in plantation hole add in soil with receiving
Rice hydroxyapatite mass ratio 1：1 mixed soil.Common kind 100 plants.Outdoor temperature 10-26 degree.Muck is added in, according to the soil water
Point actual conditions are irregularly watered, it is ensured that soil moisture is maintained at water-holding capacity 80% or so, after plant to be planted is grown 90 days, is stayed
Stubble harvesting plant and ashing processing, measure plant in and the heavy metal iron in soil, the content of aluminium.
As a result it shows：
Under the booster action of microbial composite bacteria kind, the growth of Radix Ophiopogonis grass is normal after Cd/Pb combined pollutions 90 days, and blade does not have
It occurs such as minus green, is withered by stress symptom.Radix Ophiopogonis grass aerial part dry weight and under ground portion dry weight increase respectively in soil
50.2% and 48.1%.
10, averaged acquisition difference soil, measuring the soil aluminium content that is averaged reduces 6035mg/kg, and iron has dropped
1916mg/kg.Field condition experiment proves that microbial association effect of plant restoration is equally bright under the conditions of high concentration iron aluminum pollution
It is aobvious feasible.
Above-described specific embodiment has carried out the purpose of the present invention, technical solution and advantageous effect further
It is described in detail, it should be understood that the foregoing is merely the specific embodiment of the present invention, is not intended to limit the present invention
Protection domain, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (8)
1. a kind of utilize the biological prosthetic iron content of nano material and the method for aluminium composite pollution soil, it is characterised in that：Including following
Operating procedure：
1) complex microbial inoculum is sprayed around the iron content of plant to be moved into and aluminium rhizosphere soil；
2) plant to be moved into is soaked in complex microbial inoculum 23-25 hours；
Through it is above-mentioned 1), 2) after any one operating procedure,
3) soil and nano-hydroxy-apatite for iron content, aluminum pollution in plant immigration plantation hole, being added in the plantation hole of plant
The mixed soil of stone after plant growing way is vigorous, cradles aboveground vegetation part and plants leaf, remove iron and aluminium excessive in soil.
2. a kind of method using the biological prosthetic iron of nano material and aluminium composite pollution soil according to claim 1,
It is characterized in that：The complex microbial inoculum includes Moses blastocyst and earth's surface blastocyst, and complex microbial inoculum is Moses's ball
Capsule bacterium, earth's surface blastocyst press bacteria suspension mixed volume ratio 1：1 is obtained by mixing.
3. it is according to claim 1 a kind of using the biological prosthetic iron content of nano material and the method for aluminium composite pollution soil,
It is characterized in that：It is added in the plantation hole of plant in the mixed soil of soil and nanometer hydroxyapatite, soil and nanometer hydroxyl
The mass ratio of base lime stone is 1：1.
4. it is according to claim 1 a kind of using the biological prosthetic iron content of nano material and the method for aluminium composite pollution soil,
It is characterized in that：Complex microbial inoculum is sprayed around the iron content of plant to be implanted and aluminium rhizosphere soil, the amount of sprinkling is every
Strain plant 20ml.
5. it is according to claim 1 a kind of using the biological prosthetic iron content of nano material and the method for aluminium composite pollution soil,
It is characterized in that：Containing in aluminium and iron soil, aluminum concentration is 0-16000mg/kg, and concentration of iron is 0-6000mg/kg, with quality hundred
Score meter.
6. a kind of biological prosthetic iron content of utilization nano material and aluminium composite pollution according to claim 1-5 any one
The method of soil, it is characterised in that：Plant is soaked in complex microbial inoculum described in 24 hours by plant to be moved into
Plant is Radix Ophiopogonis grass.
7. it is according to claim 6 a kind of using the biological prosthetic iron content of nano material and the method for aluminium composite pollution soil,
It is characterized in that：After plant growing way is vigorous, the frequency for periodically cradling aboveground vegetation part plant leaf is 1 year 2-4 times.
8. it is according to claim 7 a kind of using the biological prosthetic iron content of nano material and the method for aluminium composite pollution soil,
It is characterized in that：The aboveground vegetation part cradled is uniformly processed, processing mode is filled or burned for refuse landfill.
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