CN106947716A - The agent of heavy metal pollution Saline-alkali Field Control and saline-alkali soil treatment method comprising spent bleaching clay - Google Patents

The agent of heavy metal pollution Saline-alkali Field Control and saline-alkali soil treatment method comprising spent bleaching clay Download PDF

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Publication number
CN106947716A
CN106947716A CN201710205953.5A CN201710205953A CN106947716A CN 106947716 A CN106947716 A CN 106947716A CN 201710205953 A CN201710205953 A CN 201710205953A CN 106947716 A CN106947716 A CN 106947716A
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China
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saline
heavy metal
metal pollution
bleaching clay
spent bleaching
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许海
高素萍
谢爱军
常立
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SHANGHAI LICHANG ENVIRONMENTAL ENGINEERING Co Ltd
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SHANGHAI LICHANG ENVIRONMENTAL ENGINEERING Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N1/00—Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
    • C12N1/20—Bacteria; Culture media therefor
    • 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
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B1/00—Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
    • C05B1/02—Superphosphates
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K17/00—Soil-conditioning materials or soil-stabilising materials
    • C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09C—RECLAMATION OF CONTAMINATED SOIL
    • B09C2101/00—In situ
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2101/00—Agricultural use
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2109/00—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE pH regulation

Abstract

The invention provides a kind of heavy metal pollution Saline-alkali Field Control agent comprising spent bleaching clay and administering method, administering the composition of raw materials of agent includes spent bleaching clay 65 80%, complex micro organism fungicide 0.5 2%, EDTA 4 6%, calcium superphosphate 5 10%, calcium magnesium phosphate 8 15.5% and lentinan 1 3%, and described complex micro organism fungicide is that bacillus subtilis, bacillus licheniformis, bacillus laterosporus, Streptomyces jingyangensis, bacillusmusilaginosiengineering are 1 by nutrient solution volume ratio:1.2‑1.6:0.5‑0.7:1.2‑1.5:The mixture of 0.6 0.9 compositions.Agent is administered using the present invention and the improvement in salt-soda soil particularly heavy metal pollution salt-soda soil can be effectively realized with reference to administering method of the present invention, the improvement requirement in salt-soda soil is fundamentally solved, while low cost of the present invention, can be achieved resource reutilization, reduces environmental pollution.

Description

The agent of heavy metal pollution Saline-alkali Field Control and saline-alkali soil treatment method comprising spent bleaching clay
Technical field
The present invention relates to a kind of soil remediation agent, more particularly to a kind of heavy metal pollution Saline-alkali Field Control agent.
Background technology
The salinization of soil is destroyed than larger to soil physico-chemical property, and pole is unfavorable for the growth of many crops, easily causes work Thing is short of seedling or dead, so as to hinder the development of agricultural economy.Salt-soda soil is more due to salt content, and organic quality is few, and acid-base value is high, makes Agron is destroyed by leaching loss, soil texture, is sticked when showing as wet, and hard when doing, native table often has white salinity accumulation, Ventilation, it is permeable bad, serious meeting causes plant wilt, poisoning and rotten death.In addition, surface soil alkalinity is too big, soil is had influence on The validity of the nutrients such as phosphorus, iron, manganese, boron, zinc in earth, easily causes a large amount of nitrogen, phosphorus, potassium essential element and iron, calcium, boron Deng the shortage of trace element.According to statistics, Chinese saline-alkali soil area there are about more than 20 ten thousand square kilometres, constitute about China's territory total area 2.1%.Up to the present China about also have 80% or so saline-alkali soil not to be developed.It is increasingly tight in land resource The today opened, the exploitation of large area saline-alkali wasteland and the preventing and treating of the salinization of soil have become influence China's economy and society The major issue of sustainable development.
Existing conventional administering method has chemical modifying, physically improved, organic fertilizer improvement and biological modification etc..Soil The kind of modifying agent has such as mineral substance, organic matter, artificial synthesized high-molecular compound, effective microorganism preparation, sulphur-bentonite Deng.These modifying agents are generally common liquid body fertilizer material ﹑ farm manures or organic matter, and nutrient content is than relatively low, though it can be supplemented for soil Certain nutrient, but the improvement of soil physico-chemical property is have ignored, nutrient is difficult release, neither takes stopgap measures nor effect a permanent cure.Beneficial micro- life Thing type of preparation is various, and the improved effect of most of microbial bacterial agents reported or produced is general, mainly microbial bacterial agent Be difficult to survive and breed under alkaline land soil environment so as to limit its effect play, although some microbial bacterial agent effects compared with It is good, but it is expensive.
CN106278705A discloses a kind of alkaline land improving fertilizer special for organic and its preparation method and application, organic fertilizer by Following components in percentage by weight is constituted：Edible oil and fat decolouring spent bleaching clay 90%~92%, middle micro- 1%~6%, it is saline and alkaline Ground improved materials 2%~9%；Middle trace element is consisted of the following components in percentage by weight：Potassium sulfate 35~65%, ammonium sulfate 30~60%, zinc sulfate 1~4%, borax 0.5~2%；Alkaline land improving material is consisted of the following components in percentage by weight： Desulfurization gypsum powder 70~100%, sofril 0~30%.The preparation method of organic fertilizer is：By edible oil and fat decolouring spent bleaching clay, in Trace element and alkaline land improving material are according to described percentage by weight mixing and stirring, and the pH of dilution is passed through in then addition The acid conditioner of value, is uniformly mixed, and the pH value of adjustment mixture is 3~4, obtains alkaline land improving fertilizer special for organic, pH value Acid conditioner is consisted of the following components in percentage by weight：Gustatory production wastewater 60~80%, steel and iron industry H2SO4Pickling is given up Liquid 10~20%, steel and iron industry HCL pickle liquors 10~20%, the consumption of pH value acidity conditioner is the 5- of total weight of the mixture 20%.The organic fertilizer of the patent uses edible oil and fat decolouring spent bleaching clay in alkaline land improving first, but it is not to edible The content of grease is illustrated in grease-decolor spent bleaching clay.Meanwhile, it uses steel and iron industry hydrochloric acid and sulphur pickle liquor to adjust pH, Because containing Cr inside iron and steel pickling waste liquid, this can cause substantial amounts of Cr to enter soil, cause the secondary pollution of soil, and past Hydrochloric acid and sulfuric acid waste are added in spent bleaching clay, the microorganism in spent bleaching clay is all killed, the environment of the growth of microorganism is destroyed, Unnecessary grease in spent bleaching clay can not be decomposed by the microorganisms, while the nutrients that plant easily absorbs can not be converted it into Macronutrient in matter, spent bleaching clay can not be absorbed and used by plants.In addition, spent bleaching clay addition is up to more than 90%, and Grease is without consumption, containing substantial amounts of nutrient, and single fertilization is excessive, can cause the excessive growth of plant, hinders flower_bud formation With bloom, be formulated in addition and be unfavorable on the whole soil granular and formed.For summary, although the organic fertilizer of the patent is using spent bleaching clay For raw material, but but spent bleaching clay is not utilized well, it is impossible to fundamentally solve the improvement requirement in salt-soda soil.
CN103320137B discloses a kind of composite microbiological bacteriocin saline-alkali soil improver, and described modifying agent includes micro- life Thing, organic liquor and matrix.Described microorganism includes bacillus subtilis (Bacillussubtilis) and bacillus megaterium (Bacillusmegaterium), the ratio of weight and number of described bacillus subtilis and bacillus megaterium is：Withered grass gemma Bacillus 60~80；Bacillus megaterium 20~40, the bacillus subtilis is that the bacillus subtilis is bacillus subtilis Bacterium CGMCC7296, bacillus subtilis CGMCC7297, bacillus subtilis CGMCC7298 mixture；The huge gemma Bacillus is CGMCC 7337.Described organic liquor includes the protease that described microbial bacterial agent fermentation is produced, lipase, and α- Amylase, amino acid.Described matrix includes chicken manure or cow dung, lignite, ground phosphate rock, medical stone.Described chicken manure or cow dung warp Cross 200~400 DEG C of high-temperature sterilizations；Described lignite contains 20% humic acid；The ground phosphate rock, medical stone are more than 300 mesh. The patent formulation is complicated, production inconvenience, with the addition of the nutriment that a large amount of growth of microorganism need, cost is higher, and salt-soda soil Hardened environment under, growth of microorganism and breeding are limited, and regulation effect is not good.
Compared to general salt-soda soil, the improvement in the salt-soda soil of heavy metal pollution administers increasingly difficult, and one is pollutant in soil Poor mobility, holdup time length in earth, be unable to natural degradation, dilution, flowing, extension that can over time in salt-soda soil all the more The plant planted in enrichment, harm salt-soda soil；Two be due to that salt content is high and in alkalescence, and plant survival rate is very low, naturally improvement It is extremely slow.A kind of low cost is provided and modifying agent and the improvement side of heavy metal pollution Saline-alkali Field Control requirement can be fundamentally solved Method is significant.
The content of the invention
An object of the present invention is to provide a kind of improved heavy metal pollution Saline-alkali Field Control agent comprising spent bleaching clay, should Heavy metal pollution Saline-alkali Field Control can effectively be realized by administering agent, and the improvement for fundamentally solving heavy metal pollution salt-soda soil will Ask, while low cost of the present invention.
The present invention also provides a kind of administering method in heavy metal pollution salt-soda soil simultaneously, and this method is easy to operate and can be effective Realize heavy metal pollution Saline-alkali Field Control.
To achieve the above object, a kind of technical scheme that the present invention takes is as follows by the present invention：
A kind of heavy metal pollution Saline-alkali Field Control agent comprising spent bleaching clay, by weight percentage, its composition of raw materials includes Including spent bleaching clay 65-80%, complex micro organism fungicide 0.5-2%, EDTA 4-6%, calcium superphosphate 5-10%, calcium magnesium phosphate 8- 15.5% and lentinan 1-3%, described complex micro organism fungicide is bacillus subtilis, bacillus licheniformis, side spore Bacillus, Streptomyces jingyangensis, bacillusmusilaginosiengineering are 1 by nutrient solution volume ratio:1.2-1.6:0.5-0.7:1.2-1.5: The mixture of 0.6-0.9 compositions.
Preferably, complex micro organism fungicide is bacillus subtilis, bacillus licheniformis, bacillus laterosporus, Jingyang chain Mould, the volume ratio of bacillusmusilaginosiengineering nutrient solution are 1:1.4-1.5:0.5-0.6:1.2-1.3:It is mixed that 0.8-0.9 is constituted Compound.Most preferably, bacillus subtilis, bacillus licheniformis, bacillus laterosporus, Streptomyces jingyangensis, gel-shaped gemma bar The volume ratio of bacteria culture fluid is 1:1.5:0.6:1.3:0.8.
According to the present invention, the spent bleaching clay is that grease-decolor processing is useless white.In oil and fat refining process, typically add atlapulgite Decolourized, the oil that the carclazyte being separated after grease-decolor processing contains 20-30%.Contain 20-30%'s for these The carclazyte of oil, some producers can carry out secondary deep squeezing, obtain miscella and oil-containing 5-8% oil-containing spent bleaching clay.The present invention Can be using these spent bleaching clays containing oily 20-30% spent bleaching clay or oil-containing 5-8%.However, as the preferred scheme of the present invention, It is preferred to use the spent bleaching clay that oil content is 12wt%-15wt%, on the one hand, show by inventor's lot of experiments, oil-containing The breeding that rate can be good at described complex microorganism for 10wt%-18wt% spent bleaching clay provides good growing environment, The spent bleaching clay for being 5-8% with oil content is mixed with microorganism, not enough supports the growth of long-term microorganism, it is necessary to additionally add battalion again The normal growth that material just can guarantee that microorganism is supported, is such as mixed, is applied with microorganism with without the spent bleaching clay of after-treatment Into alkaline land soil, microbes have little time to decompose, and cause substantial amounts of grease to be full of in soil, can so cause substantial amounts of Air can not come in, and cause microorganism and be unable to normal growth.On the other hand, inventor was had found by containing after decolouring 20-30% spent bleaching clay can obtain the spent bleaching clay that oil content is 12-15% by normal temperature physical squeezing.It is therefore especially preferred that 12- 15% spent bleaching clay is used as raw material of the invention, it is possible to achieve minimization of cost is (in oil and fat refining process, usually using oil weight 2- 5% carclazyte is decolourized, the general grease for being adsorbed with 20-50% in the spent bleaching clay after decolouring, then again to decolouring after Spent bleaching clay carry out after-treatment, the content of reduction the inside grease, the handling process of existing market mainly has solvent extraction, height The treated spent bleaching clay of warm physical squeezing method, wherein solvent extraction, oil content inside it than relatively low, substantially grease all by Extract, but using and wasting for substantial amounts of solvent can be caused, simultaneously because using a large amount of solvents, increasing substantial amounts of be processed into This, causes processing spent bleaching clay economic benefit not high；Spent bleaching clay is handled by high-temperature physics milling process, the oil content inside it is general In 5-8% or so, this method needs to use heated by natural gas, can also increase processing cost, can be big using normal temperature physical squeezing Width reduces cost) while obtain optimal effect.
According to the present invention, each component of composition above-mentioned raw materials formula is individually packed.
The present invention also provides a kind of heavy metal pollution saline-alkali soil treatment method, and it is used, and the present invention is above-mentioned to include spent bleaching clay Heavy metal pollution Saline-alkali Field Control agent, and comprise the following steps：
(1) complex micro organism fungicide is added in spent bleaching clay, controls temperature to be kept for 3-5 weeks for 28-35 DEG C, make microorganism Breeding, is governed agent component A；
(2) using calcium superphosphate as administer agent B component, it is uniformly sprinkling upon to saline and alkaline the earth's surface, then carry out turn over and Water is spread, is kept for 5-15 days；
(3) it is uniformly sprinkling upon saline and alkaline the earth's surface by EDTA, calcium magnesium phosphate and lentinan as modifying agent C components, Then water is turned over and spread, is kept for 5-10 days；
(4) improvement agent component A is uniformly sprinkling upon to the saline and alkaline the earth's surface handled by step (3), and turned over, makes to mix Close uniform, kept for 5-10 days.
B component is added in soil first, soil pH on the one hand can be adjusted, soil on the other hand can be activated and activate Heavy metal in earth, C components while calcium superphosphate can partly be complexed the heavy metal in soil, then be added in soil The solidification and stabilization of row heavy metal-polluted soil, finally again adds component A, further absorption and curing soil in heavy metal from Son, so as to handle the heavy metal ion in soil to greatest extent, reaches improvement purpose.
Further, the preparation method of the complex micro organism fungicide is：By bacillus subtilis, bacillus licheniformis, Bacillus laterosporus, Streptomyces jingyangensis, the bacterium powder of bacillusmusilaginosiengineering are made each after being cultivated respectively through activation and domestication Nutrient solution, then produce nutrient solution is well mixed.Bacillus subtilis, bacillus licheniformis, bacillus laterosporus, Jingyang Streptomycete, the bacterium powder of bacillusmusilaginosiengineering have learned that, can by commercially available, activation and domestication and culture method according to And known program or the mode of producer's suggestion are carried out.
Preferably, every gram it is described administer agent component A in, bacillus subtilis, bacillus licheniformis, bacillus laterosporus, Streptomyces jingyangensis, the viable count of bacillusmusilaginosiengineering are respectively greater than 3.5x108、2.7x108、3.5x107、3.0x108With 2.0x108。
Further, in step (1), during holding, 3-4 ventilation is stirred weekly.And preferably kept for 3 weeks.
Further, in step (2), ploughed depth is 18-25cm, preferably from about 20cm.Water is spread so as to turn over soil layer wet Profit.Preferably, kept for 5-10 days in the step.
Further, in step (3), ploughed depth is 18-25cm, preferably from about 20cm.Preferably, kept in the step 5-7 days.
Further, in step (4), ploughed depth is 18-25cm, preferably from about 20cm.
According to the present invention, administering the dosage of agent can accordingly add according to the saline and alkaline and heavy metal pollution situation of soil. General, the dosage for administering agent is 150-200kg/ mus.
Compared with prior art, beneficial effects of the present invention are as follows：
(1) spent bleaching clay can coordinate the use of microorganism in acidity with being neutralized in the salt-soda soil of alkalescence, can be effective Reduce alkaline land soil pH value, while spent bleaching clay can be provided in soil for microorganism breed required for nutrient and Do not result in excessive fertilization simultaneously and cause plant excessive growth.
(2) present invention pass through experimental studies have found that, by bacillus subtilis, bacillus licheniformis, bacillus laterosporus, river rising in Ningxia and flowing into central Shaanxi After positive streptomycete, bacillusmusilaginosiengineering are mixed in specific proportions, it can be reached in the presence of spent bleaching clay in the environment in salt-soda soil To symplastic growth and breeding, if lacking the bacillus licheniformis in jelly bacillus, microbial inoculum, bacillus laterosporus and Jingyang Streptomycete can not survive discovery substantially, if removing bacillus licheniformis, be had when being mixed mix bacterium agent substantial amounts of miscellaneous Bacterium produces, so as to suppress the growth of beneficial bacterium in microbial inoculum, causes the quality of microbial inoculum between a batch unstable, causes to saline and alkaline Ground repairing effect does not reach requirement, the compounding of this several microbial inoculum, it is possible to increase it cooperates with resistance alkali ability, can be in salt-soda soil soil Fermented well in earth, support the growth in saline and alkaline aerial plant.
(3) in inventive formulation, calcium ion in the calcium ion in calcium ion, calcium magnesium phosphate and spent bleaching clay in calcium superphosphate It can be chemically reacted with carbanion in salt-soda soil and bicarbonate ion, generation calcium carbonate and calcium bicarbonate, wherein carbon Sour calcium is water insoluble, and calcium bicarbonate is slightly soluble in water, and the property of calcium carbonate and calcium bicarbonate can promote Zinc fractions spherulitic texture, Spherulitic texture, while reducing the unit weight of soil, can increase the water flowing of soil so that the weight in soil with wrapping portion sodium ion Metal ion is precipitated with EDTA and phosphate radical formation, can effectively reduce mushroom in the heavy metal ion in soil, formula many Sugar can promote plant to absorb the nutrient in soil, suppress the propagation of soil soil-borne disease.Whole recipe ingredients Synergy, effectively improves alkaline land soil and removes removing heavy metals.
(4) raw material used is finally converted to the absorbable element utilized of plant growth in being formulated, and does not result in soil Secondary pollution, and wherein realize the resource reutilization of spent bleaching clay, help to reduce environmental pollution.
Embodiment
Below in conjunction with specific embodiment, the present invention will be further described in detail, and unreceipted condition is in embodiment The conventional condition in this area.When addressing the consumption or dosage of material or content, unless stated otherwise, weight is referred both to.Below The complex micro organism fungicide used in embodiment, preparation method is as follows：Microbial bacteria by commercially available, and using it is preceding according to Known program or producer suggestion mode enter line activating and domestication cultivate, then by bacillus subtilis, bacillus licheniformis, Bacillus laterosporus, Streptomyces jingyangensis, bacillusmusilaginosiengineering nutrient solution are according to volume ratio 1:1.5:0.6:1.3:0.8 compounding exists Together, control temperature is at 28-32 DEG C.
Embodiment 1
This example provides a kind of heavy metal pollution Saline-alkali Field Control agent, by weight percentage, and its composition of raw materials includes useless white Soil 70%, complex micro organism fungicide 1%, EDTA 5%, calcium superphosphate 8%, calcium magnesium phosphate 13% and lentinan 3%.Its Middle spent bleaching clay oil content is about 13-14%.Each component independent packaging.
Embodiment 2
This example provides a kind of heavy metal pollution Saline-alkali Field Control agent, by weight percentage, and its raw material includes spent bleaching clay 80%th, complex micro organism fungicide 1.5%, EDTA 4%, calcium superphosphate 5%, calcium magnesium phosphate 8% and lentinan 1.5%.Its Middle spent bleaching clay oil content is about 12-13%.Each component independent packaging.
Embodiment 3
A kind of heavy metal pollution Saline-alkali Field Control agent of this example offer, its basic be the same as Example 1, unlike, wherein useless white Native oil content is about 6-8%.
Embodiment 4
A kind of heavy metal pollution Saline-alkali Field Control agent of this example offer, its basic be the same as Example 1, unlike, wherein useless white Native oil content is about 20-22%.
Comparative example 1
A kind of heavy metal pollution Saline-alkali Field Control agent of this example offer, its basic be the same as Example 1, unlike, wherein compound Microbial bacterial agent is bacillus subtilis, bacillus licheniformis, bacillus laterosporus, Streptomyces jingyangensis in proportion 1:1.5:0.6: 1.3 mixing compositions.
Comparative example 2
A kind of heavy metal pollution Saline-alkali Field Control agent of this example offer, its basic be the same as Example 1, unlike, wherein compound Microbial bacterial agent is bacillus subtilis, bacillus laterosporus, Streptomyces jingyangensis, jelly bacillus in proportion 1:0.6:1.3: 0.8 mixing composition.
Comparative example 3
This example provides a kind of heavy metal pollution Saline-alkali Field Control agent, by weight percentage, and its composition of raw materials includes useless white Soil 72%, complex micro organism fungicide 1%, calcium superphosphate 9%, calcium magnesium phosphate 14% and lentinan 4%, wherein spent bleaching clay contain Oil cut rate is about 13-14%.Each component independent packaging.
Embodiment 5
Heavy metal pollution Saline-alkali Field Control experiment is carried out using embodiment 1-4 and comparative example 1-3 improvement agent, specifically such as Under：
1. test salt-soda soil situation：Lan Yu forts village of Datong City, Shanxi Province Tianzhen County San Shipu townshiies moderate salt affected soil, its pH Salt-soda soil is divided into 8 homalographic regions, each 0.05 mu of region by value 8.5 or so.
2. for studying thing：Paddy rice, in late April, 2016 sowing, late August harvest.
3. administer agent consumption：180kg/ mus.
4. supply method for testing：First salt-soda soil is administered, then long-term cropping on the soil after improvement, wherein improvement side Method is as follows：Complex micro organism fungicide in each formula is added in spent bleaching clay, controls temperature to be about 30-32 DEG C and is kept for 3 weeks, obtained To agent component A is administered, wherein viable count is surveyed, as a result referring to table 1；Using calcium superphosphate as modifying agent B component, it is uniformly sprinkling upon Saline and alkaline the earth's surface, is then turned over and is spread water, is kept for 10 days；Then using EDTA, calcium magnesium phosphate and lentinan as changing Good dose of C component, it is uniformly sprinkling upon saline and alkaline the earth's surface, is then carried out turning over 20cm and is spread water (wetting), is kept for 7 days； Modifying agent component A is uniformly finally sprinkling upon saline and alkaline the earth's surface, and carries out turning over 20cm, makes to be well mixed, is kept for 7 days, soil Improvement is completed.Soil indices are detected, as a result referring to table 2, wherein heavy metal index is shown in Table 3.
Table 1
Table 2
Table 3
Sequence number Cadmium (mg/kg) Chromium (mg/kg) Lead (mg/kg) Mercury (mg/kg) Copper (mg/kg)
Blank soil 0.4989 290.9 97.15 0.3961 58.55
Embodiment 1 0.2426 228.5 60.33 0.2268 46.56
Embodiment 2 0.2381 239.3 59.10 0.2558 47.02
Embodiment 3 0.3124 271.5 83.12 0.3124 50.15
Embodiment 4 0.3958 269.2 80.36 0.3242 50.83
Comparative example 1 0.4059 273.1 89.15 0.3411 55.15
Comparative example 2 0.3945 278.6 88.46 0.3521 55.86
Comparative example 3 0.2601 227.4 69.99 0.2830 50.16
General planting and fertilizing management further are carried out according to conventional crop to the soil after the completion of improvement, inserted in paddy rice Before seedling, with reference to site preparation, regular job is pressed in field management and water management, and the indices of crop are detected, as a result referring to Table 4.
Table 4
Sequence number Plant height (cm) Cave number/m3 Spike number/m3 Spike length (cm) Yield (kg/ mus)
Embodiment 1 88.7 30 505 17.8 689.8
Embodiment 2 88.4 30 503 18.1 697.9
Embodiment 3 83.8 30 439 13.5 429.9
Embodiment 4 84.6 30 429 14.2 462.5
Comparative example 1 84.4 30 434 15.7 539.4
Comparative example 2 82.7 30 449 15.1 446.8
Comparative example 3 86.3 30 472 17.0 631.6
Above result of the test shows that the improvement agent and administering method using inventive formulation successfully realize that heavy metal pollutes The improvement in salt-soda soil, regulation effect is notable.

Claims (10)

1. a kind of heavy metal pollution Saline-alkali Field Control agent comprising spent bleaching clay, it is characterised in that：By weight percentage, it is described heavy The composition of raw materials of metallic pollution Saline-alkali Field Control agent includes spent bleaching clay 65-80%, complex micro organism fungicide 0.5-2%, EDTA4- 6%th, calcium superphosphate 5-10%, calcium magnesium phosphate 8-15.5% and lentinan 1-3%, described complex micro organism fungicide is withered Careless bacillus, bacillus licheniformis, bacillus laterosporus, Streptomyces jingyangensis, bacillusmusilaginosiengineering press nutrient solution volume ratio For 1:1.2-1.6:0.5-0.7:1.2-1.5:The mixture of 0.6-0.9 compositions.
2. the heavy metal pollution Saline-alkali Field Control agent according to claim 1 comprising spent bleaching clay, it is characterised in that：Described Complex micro organism fungicide is bacillus subtilis, bacillus licheniformis, bacillus laterosporus, Streptomyces jingyangensis, gel-shaped gemma The volume ratio of bacillus nutrient solution is 1:1.4-1.5:0.5-0.6:1.2-1.3:The mixture of 0.8-0.9 compositions.
3. the heavy metal pollution Saline-alkali Field Control agent according to claim 1 comprising spent bleaching clay, it is characterised in that：It is described useless Carclazyte is that grease-decolor handles spent bleaching clay, and its oil content is 12wt%-15wt%.
4. the heavy metal pollution Saline-alkali Field Control comprising spent bleaching clay according to any one of claims 1 to 3 claim Agent, it is characterised in that：The each component of the composition above-mentioned raw materials is individually packed.
5. a kind of heavy metal pollution saline-alkali soil treatment method, it is characterised in that：This method is used as any in Claims 1-4 The heavy metal pollution Saline-alkali Field Control agent comprising spent bleaching clay described in item claim, and comprise the following steps：
(1) complex micro organism fungicide is added in spent bleaching clay, controls temperature to be kept for 3-5 weeks for 28-35 DEG C, make microorganism numerous Grow, be governed agent component A；
(2) it is uniformly sprinkling upon saline and alkaline the earth's surface, is then turned over and spread water by calcium superphosphate as agent B component is administered, Kept for 5-15 days；
(3) it is uniformly sprinkling upon saline and alkaline the earth's surface, then by EDTA, calcium magnesium phosphate and lentinan as modifying agent C components Water is turned over and spread, is kept for 5-10 days；
(4) improvement agent component A is uniformly sprinkling upon to the saline and alkaline the earth's surface handled by step (3), and turned over, makes mixing equal It is even, kept for 5-10 days.
6. heavy metal pollution saline-alkali soil treatment method according to claim 5, it is characterised in that：Every gram of improvement agent A In component, bacillus subtilis, bacillus licheniformis, bacillus laterosporus, Streptomyces jingyangensis, the viable bacteria of bacillusmusilaginosiengineering Number is respectively greater than 3.5x108、2.7x108、3.5x107、3.0x108And 2.0x108。
7. heavy metal pollution saline-alkali soil treatment method according to claim 5, it is characterised in that：The composite microbial bacteria The preparation method of agent is：By bacillus subtilis, bacillus licheniformis, bacillus laterosporus, Streptomyces jingyangensis, gel-shaped gemma Then nutrient solution is well mixed and produces respectively through respective nutrient solution is made after activation and domestication culture by the bacterium powder of bacillus.
8. heavy metal pollution saline-alkali soil treatment method according to claim 5, it is characterised in that：In step (1), keeping During, 3-4 ventilation is stirred weekly.
9. heavy metal pollution saline-alkali soil treatment method according to claim 5, it is characterised in that：Step (2) into (4), Ploughed depth is respectively 18-25cm.
10. the heavy metal pollution Saline-alkali Field Control agent comprising spent bleaching clay as described in any one of Claims 1-4 claim Application in heavy metal pollution Saline-alkali Field Control.
CN201710205953.5A 2017-03-31 2017-03-31 The agent of heavy metal pollution Saline-alkali Field Control and saline-alkali soil treatment method comprising spent bleaching clay Pending CN106947716A (en)

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