CN104311334A - Composite improver for repairing heavy metal contaminated soil and preparation process - Google Patents
Composite improver for repairing heavy metal contaminated soil and preparation process Download PDFInfo
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- CN104311334A CN104311334A CN201410557263.2A CN201410557263A CN104311334A CN 104311334 A CN104311334 A CN 104311334A CN 201410557263 A CN201410557263 A CN 201410557263A CN 104311334 A CN104311334 A CN 104311334A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/60—Biocides or preservatives, e.g. disinfectants, pesticides or herbicides; Pest repellants or attractants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- 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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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F1/00—Fertilisers made from animal corpses, or parts thereof
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F9/00—Fertilisers from household or town refuse
- C05F9/04—Biological compost
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C2101/00—In situ
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- Engineering & Computer Science (AREA)
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- General Health & Medical Sciences (AREA)
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- Processing Of Solid Wastes (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Fertilizers (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention discloses a composite improver for repairing heavy metal contaminated soil and a preparation process thereof. The composite improver mainly comprises the following raw materials in parts by mass: 260-310 parts of organic fertilizer, 25-31 parts of microbial agent, 0.03-0.07 part of difenoconazole, 0.05-0.1 part of pyrethrum, 0.03-0.09 part of bacillus thuringiensis, 0.04-0.08 part of dioctyl divinyltriamino glycine and 0.02-0.06 part of lactobacillus plantarum. The composite improver is simple in formula and low in cost, and has a significant effect of improving the heavy metal contaminated soil.
Description
Technical field
The present invention relates to soil fertilizer field, particularly relate to a kind of composite modifying agent for restoration of soil polluted by heavy metal and preparation technology thereof.
Background technology
Due to population increase, industrial develop rapidly, the problem of environmental pollution that mankind's activity causes constantly increases.Wherein, heavy metal contamination is one of great number of issues.Heavy metal contamination refers to because heavy metal joins in soil by mankind's activity, causes heavy metal in soil content apparently higher than original content, and the phenomenon causing eco-environmental quality to worsen.The heavy metal entered in soil can not only suppress growth and development of plants, and by food chain transmission and enrichment, finally be detrimental to health." itai-itai disease " that occur as Japan's 21 century are exactly caused by the rice because eating containing Cd.As can be seen here, heavy metal contamination has had a strong impact on health and the existence of people, and the Pollution abatement of heavy metal in soil certainly will cause the common concern of people.China's heavy metal pollution of soil presents the feature of regionality, complicacy, has become the important limiting factor affecting China's grain-production, agricultural product quality and safety and agricultural sustainable development, must attract great attention, take aggregate measures to administer.
At present, repairing heavy metal in soil pollutes and mainly contains following approach.One is change the existence of heavy metal in soil, reduces its transport property in the environment and bioavailability; Two is utilize biological or engineering techniques removal heavy metal from soil; Three is change planting system, avoids heavy metal by food chain impact biology and HUMAN HEALTH.Concrete measure is that chemistry is fixing, Soil leaching, thermal desorption, steam extraction, dynamic electricity are repaired, biological restoration and agronomic measures etc.Chemistry is exactly fixedly add soil improvement agent to change physics, the chemical property of soil, by the absorption of heavy metal, precipitation or co-precipitation, changes the existence of heavy metal in soil, thus reduces its biological effectiveness and transport property.Conventional modifying agent has inorganic amendment and organic amendment, and wherein inorganic amendment mainly comprises the alkaline matters such as lime, calcium carbonate, flyash; The phosphoric acid salt such as hydroxyapatite, ground phosphate rock, secondary calcium phosphate and the mineral such as zeolite, wilkinite that are natural, natural modified or synthetic.Organic amendment comprises the organic fertilizer such as farm manure, green manure, the peat composed of rotten mosses.
Application publication number CN 104046361 A(application number 201410277079.2) Chinese patent literature disclose a kind of compound heavy metal contaminated soil conditioner and application thereof and application process, it comprises following component: plant ash, fused(calcium magnesium)phosphate, unslaked lime, zeolite and fertilizer, and the proportioning of its weight is: plant ash: fused(calcium magnesium)phosphate: unslaked lime: zeolite: hydroxyapatite: fertilizer=(0.3 ~ 1.1): (0.1 ~ 1.2): (0.4 ~ 2.1): (0.1 ~ 0.6): (0.008 ~ 0.06): (0.4 ~ 1.2).The Chinese patent literature of application publication number CN 103484125 A (application number 201310477113.6) discloses a kind of soil improvement agent and the modification method for heavy metal lead pollution soil, relates to a kind of soil improvement agent.Soil improvement agent is solid bamboo shoot shell base charcoal, and at 400 DEG C, the elementary composition of starvation pyrolysis 30min gained is C, H, N, K, P, Mg, Ca, Si and O.Described soil improvement agent adopts following methods preparation: by bamboo shoot shell cleaning, drying, pulverize in rear loading pyrolysis oven, starvation pyrolysis 20 ~ 40min at 380 ~ 420 DEG C, biomass bamboo shoot shell obtains solid bamboo shoot shell base charcoal through super-dry, pre-charing, charing.Modification method is as follows: by soil improvement agent with 2.5% ~ 10% massfraction be added in heavy metal lead pollution soil, add water to 70% of field soil saturation moisture capacity, moisture loss is prevented with plastic film covering, and a gas port is opened at interval of 5cm place on film, add water the moisture supplementing and scatter and disappear for every 2 ~ 3 days, take out air-dry after cultivating, obtain improvement soil.Application publication number CN 101724404 A(application number 200910193692) Chinese patent literature disclose a kind of heavy metal contaminated soil conditioner and plant and chemistry combined remediation method.Described heavy metal contaminated soil conditioner is the mixture of red mud and white lime.Invention utilizes plant and chemical combined repairing method, by chemical process, soil is carried out to pH regulator, carries out heavy metal-polluted soil absorption etc. by plantation energy crop and over-accumulated plant etc.
Heavy metal pollution of soil engineering measure used such as soil moved in improve the original method, soil replacement method, deep ploughing are digged method, solidification, stabilization method, Electroremediation method etc., there is advantage that is stable, instant effect, but there is the shortcomings such as quantities is large, investment cost is high, be not suitable for the improvement of pollution in wide area soil.Heavy metal pollution of soil effect of plant restoration is very undesirable.General renovation agent function singleness.
Summary of the invention
For the deficiencies in the prior art, the object of this invention is to provide a kind of composite modifying agent for restoration of soil polluted by heavy metal and preparation technology thereof.This composite modifying agent cost is low, and preparation technology is simple, easy to implement, is applicable to the improvement of pollution in wide area soil.This composite modifying agent is remarkable for the repairing effect of heavy metal pollution of soil, and while improving the soil of heavy metal contamination, can also kill the insect that soil is inner and surperficial, improves soil microorganisms flora, suppresses soil surface characters breeding; Organic and the inorganic nutrient of activating soil, improves fertilizer efficiency rate, promotes crop circulation, Prolonged absorption utilizes; Improve soil aggregate, elimination is hardened, and improves preserve moisture and fertility ability, drought resisting, degeneration-resistant, cold-resistant, resistant to lodging.
Technical scheme of the present invention is:
For the composite modifying agent of restoration of soil polluted by heavy metal, be prepared from primarily of fertilizer, microbiobacterial agent, difenoconazole, pyrethrum, Bacillus thuringiensis, octicin solution and plant lactobacillus, the mass parts of each raw material is, fertilizer 260-310 part, microbiobacterial agent 25-31 part, difenoconazole 0.03-0.07 part, pyrethrum 0.05-0.1 part, Bacillus thuringiensis 0.03-0.09 part, octicin solution 0.04-0.08 part, plant lactobacillus 0.02-0.06 part.
For the composite modifying agent of restoration of soil polluted by heavy metal, preferred scheme is, be prepared from primarily of fertilizer, microbiobacterial agent, difenoconazole, pyrethrum, Bacillus thuringiensis, octicin solution and plant lactobacillus, the mass parts of each raw material is, fertilizer 270-300 part, microbiobacterial agent 26-29 part, difenoconazole 0.04-0.06 part, pyrethrum 0.07-0.09 part, Bacillus thuringiensis 0.05-0.08 part, octicin solution 0.05-0.07 part, plant lactobacillus 0.03-0.05 part.
For the composite modifying agent of restoration of soil polluted by heavy metal, the scheme be more preferably is, be prepared from primarily of fertilizer, microbiobacterial agent, difenoconazole, pyrethrum, Bacillus thuringiensis, octicin solution and plant lactobacillus, the mass parts of each raw material is, fertilizer 295 parts, microbiobacterial agent 27 parts, difenoconazole 0.05 part, pyrethrum 0.08 part, Bacillus thuringiensis 0.07 part, octicin solution 0.06 part, plant lactobacillus 0.04 part.
The preparation technology of the above-mentioned composite modifying agent for restoration of soil polluted by heavy metal is:
(1) fertilizer is placed on aseptic plastics film, shakeouts, cover aseptic plastics film ultra-violet sterilization 2-6 days, lift thin film, be placed in add shady and coolly microbiobacterial agent mixing for subsequent use;
(2) be placed in the container of non iron by pyrethrum, soak 22-45 minute by the warm water that temperature is 10-20 DEG C, water consumption is 1.2-5.5 times of raw material weight, be placed on smokeless stove fire, seal little fire and decoct 25-55 minute, leave standstill 4-10 hour, get supernatant liquor stand-by;
(3) difenoconazole, Bacillus thuringiensis, octicin solution and plant lactobacillus are together put into dispenser, stirred with waddy, again step (2) gained supernatant liquor is joined in dispenser, mixing, add in atomizer, be blended into raw material gross weight 2.5-8 water doubly, be sprayed at uniformly on step (1) gained fertilizer, obtain modifying agent.
Preferably be in step (1), sterilization 3-5 days.
Preferably be in step (2), soak by the warm water that temperature is 12-17 DEG C.
Preferably be in step (2), soak 25-40 minute.
Preferably be in step (2), water consumption is 2.5-4 times of raw material weight.
Preferably be in step (2), little fire decocts 30-45 minute.
Preferably be in step (2), leave standstill 5-8 hour.
Preferably be in step (3), be blended into raw material gross weight 3-6 water doubly.
More preferably, in step (1), sterilization 4 days.
More preferably, in step (2), soak by the warm water that temperature is 15 DEG C.
More preferably, in step (2), soak 35 minutes.
More preferably, in step (2), water consumption is 3.2 times of raw material weight.
More preferably, in step (2), little fire decocts 38 minutes.
More preferably, in step (2), leave standstill 6.5 hours.
More preferably, in step (3), be blended into the water of raw material gross weight 5.2 times.
Using method: play maximum effect for making the present invention, the modifying agent prepared is sprinkling upon soil top uniformly, soil is turned over even with rooter, the insect of soil inside can kill by modifying agent, can also be antibacterial, most importantly can prevent and treat heavy metal contamination, build up fertility, increase the output of heavy-metal contaminated soil.
The effect of the present invention's main raw material used is as follows:
Fertilizer: fertilizer is commonly called as farm manure, refers to the slow-release fertilizer containing materials such as large number of biological material, plant and animal residues, movement, biological wastes.Not only containing macroelement, trace element that plant is required in fertilizer, also containing abundant organic nutrient, fertilizer is the most comprehensive fertilizer.The effect of fertilizer in agriculture production is mainly manifested in the following aspects: one, improve soil, culture fertility.After organic fertilizer is manured into soil, organic mass-energy improves soil physical chemistry situation and biological nature effectively, vegetable soil, and strengthen fertilizer supply and preservation ability and the surge capability of soil, good edaphic condition is created in the growth for crop.Two, increase yield, raising quality.Organic fertilizer contains abundant organism and various nutritive element, for farm crop provide nutrition.After fertilizer decomposition, for soil microbial activity provides energy and nutriment, promote microbial activities, accelerate organic matter decomposition, the active substance of generation etc. can promote the growth of crop and improve the quality of agricultural-food.Three, the utilization ratio of fertilizer is improved.Fertilizer contains that nutrient is many but relative content is low, and slowly, and chemical fertilizer unit nutrient content is high in release, and composition is few, and release is fast.Both use by reasonable coordination, mutually supplement, and the organic acid that organic matter decomposition produces can also promote the dissolving of mineral nutrient in soil and chemical fertilizer.Fertilizer and chemical fertilizer are mutually promoted, and are conducive to Crop, improve the utilization ratio of fertilizer.
Microbiobacterial agent: microbiobacterial agent is that Beijing Huimin reaches development in science and technology center for arable farming and growing and transplanting seedling enlarged areas, continuous cropping continuous cropping increases, the situation that diseases and pests of agronomic crop is on the rise, adopts the disease-resistant bacterial manure of new bio that High biotechnology develops.Its function is: 1, improve soil microorganisms flora, suppress soil surface characters breeding, effectively can prevent the root-rot of crop, found the diseases such as withered.2, the organic and inorganic nutrient of activating soil, improves fertilizer efficiency rate, promotes crop circulation, Prolonged absorption utilizes.Extraneous root completely filled fruit in strong sprout.3, improve soil aggregate, elimination is hardened, and improves preserve moisture and fertility ability, drought resisting, degeneration-resistant, cold-resistant, resistant to lodging.
Difenoconazole: these product are colorless solid, fusing point 76 DEG C, boiling point 220 DEG C/4Pa, vapour pressure 120nPa(20 DEG C).Solvability (20 DEG C): water 3.3 mg/litre, is soluble in organic solvent.K (ow) 20000(is by anti-phase TLC).Stablize for≤300 DEG C, in soil, movability is little, slowly degrades.Interior absorption sterilization, tool protection and therapeutic action.Products characteristics: difenoconazole is that in triazole bactericidal agent, security is higher, be widely used in the crop such as fruit tree, vegetables, effective control black spot, anthrachose of grape, white rot, spot defoliation, Powdery Mildew, brown spot, rust, stripe rust, head blight etc.Suitable for crop and security: tomato, beet, banana, cereal crop, paddy rice, soybean, garden crop and various vegetables Lays etc.To wheat, barley carry out cauline leaf (Plant Height in Wheat 24 ~ 42cm) process time, blade there will be metachromatism sometimes, but can not affect output.Controlling object: to ascus subphylum, Basidiomycotina and comprise Alternaria, two armfuls, shell genus, the mould genus of tail spore, genus embraced by thorn dish, ball seat Pseudomonas, Phoma, Ramularia, Septoria, Venturia is interior imperfect fungi, Erysiphaceae, Uredinales and some kind pass cause of disease mattress lasting protection and therapeutic activity, simultaneously to beet cercospora leaf spot, wheat glume blotch, leaf blight, rust and by several cause a disease microbial mildew, scab of apple, Powdery Mildew, uncinula necator, target, leaf spot of peanut, net blotchs etc. all have good result for the treatment of.
Pyrethrum: the insecticidal constituent containing 4 kinds of 0.4-2% in pyrethrum head sequence inflorescence, i.e. pyrethrin first, second (pyrethrinI, II) and cinerin first, second (cinerinI, II).Insecticidal power is the strongest with deinsectization element first.But above-mentioned 4 kinds of compositions are unstable, are easily hydrolyzed and lose efficacy.The pharmacological action of desinsection is the nerve of benumbing insect; After insect is poisoning, from the beginning of vomiting, diarrhea, wriggle before and after health, then benumb, can lethally die, the length of lethal time is different according to dose and caste.General insect, through benumb drunk after, can recover in 24 hours; After housefly is poisoning, all benumbed in 10 minutes, mortality ratio 60-70%.To joint echiuran, fish, amphibious and reptilia is also poisonous; Not obvious to birds, mammals toxicity.The insecticidal effect of pyrethrin first is stronger than pyrethrin second 10 times; The virulence of cinerin first and pyrethrin first is suitable, and the virulence of cinerin second and pyrethrin second is suitable.
Bacillus thuringiensis: Bacillus thuringiensis applicable crops widely, is widely used in the various plants such as brassicaceous vegetable, solanaceous vegetables, melon vegetables, tobacco, paddy rice, rice, Chinese sorghum, soybean, peanut, sweet potato, cotton, tea tree, apple, pears, peach, jujube, oranges and tangerines, sour jujube; Be mainly used in preventing and treating lepidoptera pest, as cabbage caterpillar, small cabbage moth, sweet moth, prodenia litura, lopper worm, oriental tobacco budworm, Pyrausta nubilalis (Hubern)., Cnaphalocrocis medinali(rice leaf roller), striped rice borer.
Octicin solution: octicin solution is a kind of amino acids systemic fungicide, and effective constituent is glycine substitutive derivative, and sterilization mechanism solidifies germ protein, destroys germ cytolemma, suppresses germ to breathe, makes the sex change of germ enzyme system, thus kill germ.There is the features such as efficient, low toxicity, noresidue, and have good perviousness, have certain eradicant action to the germ that hides invaded in bark, can be used to prevent and treat the disease that multiple fungi, bacterium and virus cause.
Plant lactobacillus: plant lactobacillus is the one of milk-acid bacteria, optimum growth temperature is 30-35 DEG C, anaerobism or amphimicrobian, bacterial classification be straight or curved shaft-like, single, sometimes in pairs or become chain, optimal pH about 6.5, belongs to homofermentative lactic bacteria.Main Function: 1, purify water: particularly cultivate the middle and later periods, too much organic, the aging ponds of water quality such as Heisui River, Lao Shui, strong tea water, red water.2, decompose organism at the bottom of the pool, deodorizing, eliminate algae toxin, build good habitat.3, degraded water body ammonia nitrogen, the objectionable impuritiess such as nitrite, reduce organic oxygen-consumption, indirect oxygenation, improvement water quality.4, maintain algae phase, bacterium is balanced each other, and reduces and stablizes water pH value.
Composite modifying agent formula provided by the invention is simple and easy, and cost is low.In addition, excellent results of the present invention also shows:
1, the reparation for heavy-metal contaminated soil has effect significantly;
2, preparation technology is simple, easy to implement;
3, diverse in function.The insect of soil inside can kill by composite modifying agent of the present invention, can also be antibacterial, most importantly can prevent and treat heavy metal contamination, increases the fertility of soil, improves the content of soil with organic matter, increases the output of heavy-metal contaminated soil.
4, soil microorganisms flora is improved; Organic and the inorganic nutrient of activating soil, improves fertilizer efficiency rate, promotes crop circulation, Prolonged absorption utilizes; Improve soil aggregate, elimination is hardened, and improves preserve moisture and fertility ability;
5, not only economical and effective but also easily grasped by vast farmers and accept, is suitable for agricultural extension application.
Embodiment
Describe technical scheme of the present invention in detail below in conjunction with embodiment and experimental example, but protection domain is not limited thereto.
The present invention is raw materials used all can be bought from market, and such as microorganism used therefor microbial inoculum is the complex micro organism fungicide that Shijiazhuang Fen Doufei industry Science and Technology Ltd. produces; The microbial-bacterial fertilizer that this biotech inc rich, Shandong produces also can be used for the present invention.The mealybug that Bacillus thuringiensis powder used is produced purchased from Zhengzhou Huang Pu agricultural science and technology company limited must control board Bacillus thuringiensis powder.Plant lactobacillus used is purchased from Weifang Wo Teng Import and Export Co., Ltd..
embodiment 1for the composite modifying agent of restoration of soil polluted by heavy metal, be prepared from primarily of fertilizer, microbiobacterial agent, difenoconazole, pyrethrum, Bacillus thuringiensis, octicin solution and plant lactobacillus, the quality of each raw material is, fertilizer 260g, microbiobacterial agent 25g, difenoconazole 0.03g, pyrethrum 0.05g, Bacillus thuringiensis 0.03g, octicin solution 0.04g, plant lactobacillus 0.02g.
The preparation technology of the above-mentioned composite modifying agent for restoration of soil polluted by heavy metal is:
(1) fertilizer is placed on aseptic plastics film, shakeouts, cover aseptic plastics film ultra-violet sterilization 2 days, lift thin film, be placed in add shady and coolly microbiobacterial agent mixing for subsequent use;
(2) be placed in the container of non iron by pyrethrum, soak 22 minutes by the warm water that temperature is 10 DEG C, water consumption is 1.2 times of raw material weight, is placed on smokeless stove fire, seals little fire and decocts 25 minutes, leave standstill 4 hours, get supernatant liquor stand-by;
(3) difenoconazole, Bacillus thuringiensis, octicin solution and plant lactobacillus are together put into dispenser, stirred with waddy, again step (2) gained supernatant liquor is joined in dispenser, mixing, add in atomizer, be blended into the water of raw material gross weight 2.5 times, be sprayed at uniformly on step (1) gained fertilizer, obtain modifying agent.
Using method: play maximum effect for making the present invention, the modifying agent prepared is sprinkling upon soil top uniformly, soil is turned over even with rooter, the insect of soil inside can kill by modifying agent, can also be antibacterial, most importantly can prevent and treat heavy metal contamination, build up fertility, increase the output of heavy-metal contaminated soil.
embodiment 2for the composite modifying agent of restoration of soil polluted by heavy metal, be prepared from primarily of fertilizer, microbiobacterial agent, difenoconazole, pyrethrum, Bacillus thuringiensis, octicin solution and plant lactobacillus, the quality of each raw material is, fertilizer 310g, microbiobacterial agent 31g, difenoconazole 0.07g, pyrethrum 0.1g, Bacillus thuringiensis 0.09g, octicin solution 0.08g, plant lactobacillus 0.06g.
The preparation technology of the above-mentioned composite modifying agent for restoration of soil polluted by heavy metal is:
(1) fertilizer is placed on aseptic plastics film, shakeouts, cover aseptic plastics film ultra-violet sterilization 6 days, lift thin film, be placed in add shady and coolly microbiobacterial agent mixing for subsequent use;
(2) be placed in the container of non iron by pyrethrum, soak 45 minutes by the warm water that temperature is 20 DEG C, water consumption is 5.5 times of raw material weight, is placed on smokeless stove fire, seals little fire and decocts 55 minutes, leave standstill 10 hours, get supernatant liquor stand-by;
(3) difenoconazole, Bacillus thuringiensis, octicin solution and plant lactobacillus are together put into dispenser, stirred with waddy, again step (2) gained supernatant liquor is joined in dispenser, mixing, add in atomizer, be blended into the water of raw material gross weight 8 times, be sprayed at uniformly on step (1) gained fertilizer, obtain modifying agent.
Using method: play maximum effect for making the present invention, the modifying agent prepared is sprinkling upon soil top uniformly, soil is turned over even with rooter, the insect of soil inside can kill by modifying agent, can also be antibacterial, most importantly can prevent and treat heavy metal contamination, build up fertility, increase the output of heavy-metal contaminated soil.
embodiment 3for the composite modifying agent of restoration of soil polluted by heavy metal, be prepared from primarily of fertilizer, microbiobacterial agent, difenoconazole, pyrethrum, Bacillus thuringiensis, octicin solution and plant lactobacillus, the quality of each raw material is, fertilizer 270g, microbiobacterial agent 26g, difenoconazole 0.04g, pyrethrum 0.07g, Bacillus thuringiensis 0.05g, octicin solution 0.05g, plant lactobacillus 0.03g.
The preparation technology of the above-mentioned composite modifying agent for restoration of soil polluted by heavy metal is:
(1) fertilizer is placed on aseptic plastics film, shakeouts, cover aseptic plastics film ultra-violet sterilization 3 days, lift thin film, be placed in add shady and coolly microbiobacterial agent mixing for subsequent use;
(2) be placed in the container of non iron by pyrethrum, soak 25 minutes by the warm water that temperature is 12 DEG C, water consumption is 2.5 times of raw material weight, is placed on smokeless stove fire, seals little fire and decocts 30 minutes, leave standstill 5 hours, get supernatant liquor stand-by;
(3) difenoconazole, Bacillus thuringiensis, octicin solution and plant lactobacillus are together put into dispenser, stirred with waddy, again step (2) gained supernatant liquor is joined in dispenser, mixing, add in atomizer, be blended into the water of raw material gross weight 3 times, be sprayed at uniformly on step (1) gained fertilizer, obtain modifying agent.
Using method: play maximum effect for making the present invention, the modifying agent prepared is sprinkling upon soil top uniformly, soil is turned over even with rooter, the insect of soil inside can kill by modifying agent, can also be antibacterial, most importantly can prevent and treat heavy metal contamination, build up fertility, increase the output of heavy-metal contaminated soil.
embodiment 4for the composite modifying agent of restoration of soil polluted by heavy metal, to be prepared from by fertilizer, microbiobacterial agent, difenoconazole, pyrethrum, Bacillus thuringiensis, octicin solution and plant lactobacillus, the quality of each raw material is, fertilizer 300g, microbiobacterial agent 29g, difenoconazole 0.06g, pyrethrum 0.09g, Bacillus thuringiensis 0.08g, octicin solution 0.07g, plant lactobacillus 0.05g.
The preparation technology of the above-mentioned composite modifying agent for restoration of soil polluted by heavy metal is:
(1) fertilizer is placed on aseptic plastics film, shakeouts, cover aseptic plastics film ultra-violet sterilization 5 days, lift thin film, be placed in add shady and coolly microbiobacterial agent mixing for subsequent use;
(2) be placed in the container of non iron by pyrethrum, soak 40 minutes by the warm water that temperature is 17 DEG C, water consumption is 4 times of raw material weight, is placed on smokeless stove fire, seals little fire and decocts 45 minutes, leave standstill 8 hours, get supernatant liquor stand-by;
(3) difenoconazole, Bacillus thuringiensis, octicin solution and plant lactobacillus are together put into dispenser, stirred with waddy, again step (2) gained supernatant liquor is joined in dispenser, mixing, add in atomizer, be blended into the water of raw material gross weight 6 times, be sprayed at uniformly on step (1) gained fertilizer, obtain modifying agent.
Using method: play maximum effect for making the present invention, the modifying agent prepared is sprinkling upon soil top uniformly, soil is turned over even with rooter, the insect of soil inside can kill by modifying agent, can also be antibacterial, most importantly can prevent and treat heavy metal contamination, build up fertility, increase the output of heavy-metal contaminated soil.
embodiment 5for the composite modifying agent of restoration of soil polluted by heavy metal, be prepared from primarily of fertilizer, microbiobacterial agent, difenoconazole, pyrethrum, Bacillus thuringiensis, octicin solution and plant lactobacillus, the quality of each raw material is, fertilizer 295g, microbiobacterial agent 27g, difenoconazole 0.05g, pyrethrum 0.08g, Bacillus thuringiensis 0.07g, octicin solution 0.06g, plant lactobacillus 0.04g.
The preparation technology of the above-mentioned composite modifying agent for restoration of soil polluted by heavy metal is:
(1) fertilizer is placed on aseptic plastics film, shakeouts, cover aseptic plastics film ultra-violet sterilization 4 days, lift thin film, be placed in add shady and coolly microbiobacterial agent mixing for subsequent use;
(2) be placed in the container of non iron by pyrethrum, soak 35 minutes by the warm water that temperature is 15 DEG C, water consumption is 3.2 times of raw material weight, is placed on smokeless stove fire, seals little fire and decocts 38 minutes, leave standstill 6.5 hours, get supernatant liquor stand-by;
(3) difenoconazole, Bacillus thuringiensis, octicin solution and plant lactobacillus are together put into dispenser, stirred with waddy, again step (2) gained supernatant liquor is joined in dispenser, mixing, add in atomizer, be blended into the water of raw material gross weight 5.2 times, be sprayed at uniformly on step (1) gained fertilizer, obtain modifying agent.
test example 1: in order to verify that embodiment 5 gained composite modifying agent is for the repairing effect of heavy-metal contaminated soil, tests.Xintai City heavy-metal contaminated soil is selected from for examination soil.Distance Xintai City 10 kilometers, is located in mountain region, hills, Plain distributes alternately area, and high south, physical features north is low.This ground is positioned at longitude 117 ° 39.465 ', 35 ° 56.358 ', latitude, height above sea level 176 meters, and soil type is cinnamon soil.Use the composite modifying agent for restoration of soil polluted by heavy metal of the present embodiment, addition is 50kg/ mu, balanced soil improvement time 15 days.Using method: the modifying agent prepared is sprinkling upon soil top uniformly, turns over soil even (ploughing deeply 50-60cm) with rooter, levels land.
Contaminated soil sample adopts quincunx to layout method collection, gathers the topsoil soils of the 15cm degree of depth and the lower soil of the 30cm degree of depth respectively.Each sampling point repeated sampling 3 times, gets its mean value, and the heavy metal content of whole test site is the mean value of each sampling point heavy metal content.The soil fetched, after accession designation number, all needs through a preparation process, comprising air-dry, levigate, sieve, mix, bottle, in order to the use of every mensuration.The soil sample of fetching will be placed in sample disc in time, spread out into thin layer, be placed in clean place, natural air drying, after soil sample air-dry, rejects the impurity such as root system of plant, chip, (contacting metal utensil is not in order to avoid sample is polluted to roll 2mm sieve, general employing agate mortar and nylon screen), fully after mixing, load in bottle for subsequent use.Table 1 and table 2 are respectively repairs ground 15cm degree of depth topsoil soils and 30cm degree of depth lower soil repairs front and back heavy metal content.With GB15618-1995 " standard of soil environment quality " for judgement criteria.Standard of soil environment quality primary standard specific targets are in table 3.
Table 1. is repaired ground 15cm degree of depth topsoil soils and is repaired front and back heavy metal content (mg/kg)
Table 2. is repaired ground 30cm degree of depth lower soil and is repaired front and back heavy metal content (mg/kg)
Table 3 soil environment quality primary standard (unit: mg/kg)
From table 1 and table 2, in soil, the heavy metal content of Cd, As, Hg, Zn and Ni continues the trend reduced along with the prolongation of repair time presents.The 15cm degree of depth topsoil soils reparation of reparation ground reduces 91.89%, 86.33%, 92.77%, 68.39% and 85.96% before the heavy metal content of Cd, As, Hg, Zn and Ni compares reparation in soil after 15 days respectively.After reparation ground 30cm degree of depth lower soil repairs 15 days, in soil, the heavy metal content of Cd, As, Hg, Zn and Ni is respectively 0.18,13.98,0.14,91.84 and 36.28 mg/kg, reduces 90.53%, 85.39%, 91.81%, 67.56% and 84.57% respectively than before reparation.Contrast table 3 can draw, after reparation ground 15cm degree of depth topsoil soils and 30cm degree of depth lower soil repair 15 days, in soil, the heavy metal content of Cd, As, Hg, Zn and Ni all reaches soil environment quality primary standard.Test-results shows, edatope after reparation, quality meets the requirement of China " standard of soil environment quality " (GB15618-1995) primary standard value, uses embodiment 5 and can effectively repair by heavy metal contaminated soil for the composite modifying agent of restoration of soil polluted by heavy metal.
By the repairing effect of test example, the present invention is used for the composite modifying agent of restoration of soil polluted by heavy metal not only can passivation contents of many kinds of heavy metal ion, and for the reparation of heavy-metal contaminated soil, there is effect significantly, this modifying agent preparation technology is simple, easy to implement, not only economical and effective but also easily grasped by vast farmers and accept, is suitable for agricultural extension application.
It should be pointed out that embodiment is the more representational example of the present invention, obvious technical scheme of the present invention is not limited to above-described embodiment, can also have a lot of distortion.Those of ordinary skill in the art, with the present invention clear and definite disclosed or according to undoubted the obtaining of the written description of file, the claimed scope of this patent all should be thought.
Claims (10)
1. for the composite modifying agent of restoration of soil polluted by heavy metal, it is characterized in that, be prepared from primarily of fertilizer, microbiobacterial agent, difenoconazole, pyrethrum, Bacillus thuringiensis, octicin solution and plant lactobacillus, the mass parts of each raw material is, fertilizer 260-310 part, microbiobacterial agent 25-31 part, difenoconazole 0.03-0.07 part, pyrethrum 0.05-0.1 part, Bacillus thuringiensis 0.03-0.09 part, octicin solution 0.04-0.08 part, plant lactobacillus 0.02-0.06 part.
2. the composite modifying agent for restoration of soil polluted by heavy metal according to claim 1, it is characterized in that, be prepared from primarily of fertilizer, microbiobacterial agent, difenoconazole, pyrethrum, Bacillus thuringiensis, octicin solution and plant lactobacillus, the mass parts of each raw material is, fertilizer 270-300 part, microbiobacterial agent 26-29 part, difenoconazole 0.04-0.06 part, pyrethrum 0.07-0.09 part, Bacillus thuringiensis 0.05-0.08 part, octicin solution 0.05-0.07 part, plant lactobacillus 0.03-0.05 part.
3. the composite modifying agent for restoration of soil polluted by heavy metal according to claim 1, it is characterized in that, be prepared from primarily of fertilizer, microbiobacterial agent, difenoconazole, pyrethrum, Bacillus thuringiensis, octicin solution and plant lactobacillus, the mass parts of each raw material is, fertilizer 295 parts, microbiobacterial agent 27 parts, difenoconazole 0.05 part, pyrethrum 0.08 part, Bacillus thuringiensis 0.07 part, octicin solution 0.06 part, plant lactobacillus 0.04 part.
4., according to the arbitrary described preparation technology for the composite modifying agent of restoration of soil polluted by heavy metal of claim 1-3, it is characterized in that, step is as follows:
(1) fertilizer is placed on aseptic plastics film, shakeouts, cover aseptic plastics film ultra-violet sterilization, lift thin film, be placed in add shady and coolly microbiobacterial agent mixing for subsequent use;
(2) being placed in the container of non iron by pyrethrum, is the warm water (warm water of preferred 12-17 DEG C of 10-20 DEG C by temperature; Be more preferably the warm water of 15 DEG C) soak, be placed on smokeless stove fire, seal little fire and decoct, leave standstill, get supernatant liquor stand-by;
(3) difenoconazole, Bacillus thuringiensis, octicin solution and plant lactobacillus are together put into dispenser, stirred with waddy, again step (2) gained supernatant liquor is joined in dispenser, mixing, add in atomizer, be watered, be sprayed at uniformly on step (1) gained fertilizer, obtain modifying agent.
5. the preparation technology of the composite modifying agent for restoration of soil polluted by heavy metal according to claim 4, is characterized in that, sterilization 2-6 days (preferred sterilization 3-5 days in step (1); Be more preferably sterilization 4 days).
6. the preparation technology of the composite modifying agent for restoration of soil polluted by heavy metal according to claim 4, is characterized in that, soaks and (preferably soak 25-40 minute in 22-45 minute in step (2); Be more preferably immersion 35 minutes).
7. the preparation technology of the composite modifying agent for restoration of soil polluted by heavy metal according to claim 4, is characterized in that, in step (2), water consumption is that doubly (preferred water consumption is 2.5-4 times of raw material weight to the 1.2-5.5 of raw material weight; Be more preferably 3.2 times that water consumption is raw material weight).
8. the preparation technology of the composite modifying agent for restoration of soil polluted by heavy metal according to claim 4, is characterized in that, the medium and small fire of step (2) decocts 25-55 minute, and (preferred little fire decocts 30-45 minute; Be more preferably little fire to decoct 38 minutes).
9. the preparation technology of the composite modifying agent for restoration of soil polluted by heavy metal according to claim 4, is characterized in that, leaves standstill 4-10 hour and (preferably leave standstill 5-8 hour in step (2); Be more preferably standing 6.5 hours).
10. the preparation technology of the composite modifying agent for restoration of soil polluted by heavy metal according to claim 4, is characterized in that, is blended into raw material gross weight 2.5-8 water doubly and (is preferably blended into raw material gross weight 3-6 water doubly in step (3); Be more preferably the water being blended into raw material gross weight 5.2 times).
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| CN201410557263.2A CN104311334B (en) | 2014-10-21 | 2014-10-21 | Composite modifying agent and preparation technology for restoration of soil polluted by heavy metal |
| CN201610354761.6A CN106007982A (en) | 2014-10-21 | 2014-10-21 | Preparation process of compound modifier for repairing heavy metal polluted soil |
| CN201610354762.0A CN106008051A (en) | 2014-10-21 | 2014-10-21 | Complex improver for restoring heavy metal contaminated soil |
| CN201610354763.5A CN106007983A (en) | 2014-10-21 | 2014-10-21 | Composite improver for restoring heavy-metal-polluted soil and preparation technique thereof |
| CN201610354764.XA CN106045752A (en) | 2014-10-21 | 2014-10-21 | Composite amendment for amending heavy-metal contaminated soil |
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| CN201610354764.XA Division CN106045752A (en) | 2014-10-21 | 2014-10-21 | Composite amendment for amending heavy-metal contaminated soil |
| CN201610354762.0A Division CN106008051A (en) | 2014-10-21 | 2014-10-21 | Complex improver for restoring heavy metal contaminated soil |
| CN201610354763.5A Division CN106007983A (en) | 2014-10-21 | 2014-10-21 | Composite improver for restoring heavy-metal-polluted soil and preparation technique thereof |
| CN201610354761.6A Division CN106007982A (en) | 2014-10-21 | 2014-10-21 | Preparation process of compound modifier for repairing heavy metal polluted soil |
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| CN201610354763.5A Pending CN106007983A (en) | 2014-10-21 | 2014-10-21 | Composite improver for restoring heavy-metal-polluted soil and preparation technique thereof |
| CN201610354761.6A Pending CN106007982A (en) | 2014-10-21 | 2014-10-21 | Preparation process of compound modifier for repairing heavy metal polluted soil |
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| CN110538865A (en) * | 2019-08-21 | 2019-12-06 | 周乾松 | Ecological soil remediation process |
| CN110523774B (en) * | 2019-09-30 | 2022-01-11 | 武汉工程大学 | Method for removing lead pollution in phosphorite waste land by utilizing indigenous microorganism-plant combination |
| CN112453049A (en) * | 2020-11-08 | 2021-03-09 | 浙江和宸环保科技有限公司 | Environment-friendly soil remediation method |
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Also Published As
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| CN106008051A (en) | 2016-10-12 |
| CN106007982A (en) | 2016-10-12 |
| CN106045752A (en) | 2016-10-26 |
| CN106007983A (en) | 2016-10-12 |
| CN104311334B (en) | 2016-08-24 |
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