CN106867545A - A kind of saline-alkali soil restoration agent, preparation method and applications from sludge - Google Patents
A kind of saline-alkali soil restoration agent, preparation method and applications from sludge Download PDFInfo
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
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- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
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- C05G3/80—Soil conditioners
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Abstract
The present invention provides a kind of sludge soil-repairing agent, preparation method and its application in sludge is dissolved, and the technical scheme for being used is：To the treatment of city sewage and sludge early stage, the treatment of sludge is realized using fermenting twice.After using sludge renovation agent 20 days through overtesting, the effective clearance of ratio of the various pollutants of soil reaches more than 95% and meets national standard.Sulfuric acid matter can be acidified hardened saline and alkaline soil, or organic fertilizer well simultaneously, be beneficial to agricultural production and reduce the use of chemical reagent and the use of chemical fertilizer, and pollution sources and secondary pollution have been prevented from source.
Description
Technical field
It is specially a kind of to utilize microbiological treatment sludge the present invention relates to a kind of saline-alkali soil restoration agent from sludge
The method for preparing saline-alkali soil restoration agent, the saline-alkali soil restoration agent for obtaining, and its application in sludge is dissolved.
Background technology
As Urbanization in China is accelerated, the treating capacity of municipal sewage is also continuously increased.Sludge is the companion of sewage disposal
Biology, generally accounts for the 0.5--1% of sewage load, due to its complicated component, both containing substantial amounts of organic matter, cause of disease is contained again
Microorganism, heavy metal etc., treatment and disposal are difficult, and stack risk greatly, easily form " secondary pollution ".Thus how safe, economical,
Rational treatment is disposed and utilizes sludge of sewage treatment plant, is always the research topic that countries in the world today is extremely paid close attention to.Through grinding
Study carefully discovery, its composition of the sludge garbage of generation is substantially debris, bacterial body, colloid and rapid hardening after municipal sewage treatment
Agent and a small amount of inorganic matter are constituted, and are adapted to do bacteria group culture basis in the same direction material and are made sludge soil-repairing agent.At present, city is disposed
Sludge has the methods such as burning, sanitary landfills and Land_use change, and wherein Land_use change has turned into an important treatment approach.But it is dirty
Stabilisation and harmless treatment are had to pass through before mud Land_use change.The stabilisation of sludge and harmless treatment mainly have：It is aerobic to disappear
Change, anaerobic digestion, Composting, double digestion, heat drying and alkaline stabilisation etc., but effect is undesirable always.Sludge disappears
Receive as a problem.Sludge composting duration, it is impossible to effectively go removing heavy metals not connect to soil reclamation secondary pollution common people
Receive.The compost distribution of Beijing draining group is not gone out, and common people cause damage without enterprise, are also unprofitable to society.Burning can also be produced
Raw poisonous fume, China's haze is seriously not suitable for.The substantial amounts of soil cost of landfill needs is too high, and underground is buried also to have resolved into
Evil gas and harmful substance are slow release process, and China has a large population and a few land and also results in the wasting of resources.Several method cost of disposal
It is all very high not by social recognition and receiving.
The porosity of alkaline land soil is small, and fertility is low, it is easy to hardened, and ventilative water permeability is poor, the mineralization low degree of C, N, soil
The activity of enzyme is suppressed in earth, the conversion of the activity and organic matter of influence microorganism.Excessive salt ion pair can in soil
Destruction plant born of the same parents' tissue, hinders plant growth, salinization and alkalization soil high even to cause root system of plant to rot, cause plant straight
Connect death.At present, the soil improvement method and technology in domestic salt-soda soil be summed up approximately as：(1) it is physically improved：Smooth soil
Ground, deep ploughing are suned the earth which has been ploughed up, loosened the soil in time, raising landform, microcell and improve the soil；(2) water conservancy improvement：Deploying set, storage fresh water on saline-alkali land for leaching are filled, is poured water and is washed
Salt, underground salt discharge；(3) chemical modifying：Gypsuming, ardealite, calcium superphosphate, humic acid, peat, acid-sludge etc.；(4) biology changes
It is good：Rice cultivation, plantation salt-tolerant plant sesbania etc., or use germ fertilizer etc..
Some researchers have reported that the manufacture of acid organic fertilizer and application effect.Guo Xiaohua etc. is carried out《Acid organic fertilizer
Improve the Contrast on effect of geavy salt alkali》Experiment；Chinese patent《A kind of saline-alkali soil conditioner and preparation method thereof》
(ZL00100436.0) a kind of method for preparing saline-alkali soil modifying agent by 14 kinds of organic acids such as citric acid is disclosed；Chinese patent
《A kind of saline-alkali land improving and fertilizing agent and preparation method thereof》(ZL200510001737.6) one kind is disclosed by composite microbial bacteria
The method that organic substance of the liquid sealing and fermenting based on dregs of beans prepares saline-alkali land improving and fertilizing agent；Chinese patent《A kind of salt-soda soil
The preparation method of special fertilizer》(200610083425.9) disclose one kind and form Acidic organic matter by saccharomycetes to make fermentation grouts, then
Add the method that the nitro humic acid manufactured by weathered coal or lignite prepares fertilizer dedicated to alkaline land；Chinese patent《It is a kind of totally-enclosed
Anaerobic fermentation of biological organic fertilizer》(200710111509.3) disclose it is a kind of by the totally-enclosed anaerobic fermentation house refuse of HM strains,
(ratio is for fowl and animal excrement, agricultural crop straw：7-8：0.5-1.5：The method for 1.5-2.5) preparing biological organic fertilizer, but it is undeclared
The organic fertilizer of preparation is acid.Above-mentioned report and patent show that acid organic fertilizer has good result to improvement salt-soda soil；It is above-mentioned
The high price Organic Ingredients such as grouts is employed in patent makes product cost far above the ability to bear of user, employs with can not be again
Raw weathered coal or the nitro humic acid of lignite manufacture, employ the organic acids such as price industrial product very high such as citric acid, adopt
With the domestic waste raw material that cannot be used for agricultural production.
If organic waste and sludge are carried out into advanced treating, then combine with the reparation in salt-soda soil, can not only solve
Certainly problem of environmental pollution, and can turn waste into wealth, improve the crop yield in salt-soda soil.
The content of the invention
Sludge saline-alkali soil restoration agent is for the difficulty for overcoming existing sludge to dissolve, sludge saline-alkali soil restoration agent of the present invention
Sludge treatment problem is not only solved, and is turned waste into wealth, sludge is become soil-repairing agent, saline and alkaline soil can be repaired.
Sludge saline-alkali soil restoration agent of the present invention solves its technical problem, and the technical scheme for being used is：To municipal sewage
Sludge early stage heavy metal treatment, then dewater treatment makes its water content 40% or so, and the main component of sludge is that organic matter is adapted to
Culture bacterial flora.Organic matter is decomposed with thermophilic bacteria can effectively kill germ composition simultaneously.Mix the acetic acid bacteria cultivated
Group and silicate bacteria implantation.Bacterial flora vitality is powerful to remove harmful bacteria body again, while bacterial flora dissolution makes original
Carry out mineral matter dissolving, form the saline and alkaline property that new mineral matter changes soil.
The metabolism such as the process of dissolving-absorption-comprehensive-conversion, organic matter-bacterial flora secretion amino acid/organic acid/polysaccharide
Thing has neutralized alkaline matter.After sludge renovation agent being used through overtesting 30 days：Soil saliferous uses sludge in 1% or so soil
After soil-repairing agent, soil saliferous total amount is down to less than 0.3%, meets national Soil standard.Sour matter can be acidified hardened simultaneously
Saline and alkaline soil.Or organic fertilizer, is beneficial to agricultural production and reduces the use of chemical reagent and the use of chemical fertilizer, from source well
Head has prevented pollution sources and secondary pollution.
The preparation method of this saline-alkali soil restoration agent of the present invention is specially：
1st, sludge pretreatment of raw material
The domestic sludge that city domestic sewage treatment plant produces, in airing field stacking, dries 10~15 days, can be properly added
Chemical deodorizing agent.It is preliminary to reduce stink, and water content is reduced to less than 40% from 75% or so, beneficial to subsequent operation.Dry
Block sludge afterwards, with pulverizer or crusher in crushing, crosses screen cloth, is made the sludge granule of particle diameter only 10mm, standby.
Preferably, can be added according in the block sludge of every 100kg before pulverising step：Agricultural production after crushing
Leftover bits and pieces 10-15kg, organic fertilizer 10-20 kg, humus 10-20 kg, composite fertilizer 15-30 kg, amino acid 3-8 kg；
Agricultural production leftover bits and pieces after the crushing be selected from wheat bran, corn flour, rice chaff, dregs of beans, stalk, bean dregs, pomace,
At least one in the leftover bits and pieces such as sawdust, coconut palm chaff or manioc waste, drying to moisture is 3%-8%, and is crushed to 100-150
Mesh；
The organic fertilizer be animal wastes, cake fertilizer, compost, make compost, barnyard manure, natural pond fertilizer and green manure at least one；
The composite fertilizer include potash fertilizer, nitrogenous fertilizer and phosphate fertilizer, and by weight be respectively potash fertilizer 2-6 parts, phosphate fertilizer 5-8 parts,
Nitrogenous fertilizer 8-15 parts；
2nd, the preparation of complex micro organism fungicide
The complex micro organism fungicide is included：Bacillus stearothermophilus microbial inoculum, thermophilus bacteria agent, thermophilic fungus destroyed wire
Two or more of microbial inoculum, Candida tropicalis agent and Lactobacillus delbrueckii microbial inoculum,
Preferably, the complex micro organism fungicide is included：It is bacillus stearothermophilus microbial inoculum, thermophilus bacteria agent, thermophilic
Heat ruins a mould agent, Candida tropicalis agent and Lactobacillus delbrueckii microbial inoculum, and the mixed proportion between each microbial inoculum is 1~10:1~
10:1~10:1~10:1~10.
(1) preparation of bacteria suspension：
First by bacillus stearothermophilus microbial inoculum, thermophilus bacteria agent, thermophilic fungus destroyed wire microbial inoculum, candida tropicalis
Microbial inoculum and Lactobacillus delbrueckii microbial inoculum this five kinds of microorganism fungus kinds are respectively connected to the 100ml shaking flasks equipped with 15ml seed culture mediums
In, controlled on shaking table temperature for 55-60 DEG C, water-bath concussion and cultivate 24h carries out seed culture 18h under conditions of pH6.5-7.5,
Obtain seed liquor；
Then access fermentor liquid with the 5 volume % of volume % to 10 ratios to be cultivated, the cultivation temperature of cultures at different levels
It it is 25 DEG C to 35 DEG C, incubation time is 24 hours to 48 hours, so as to respectively obtain the respective bacterium of five kinds of microorganism fungus kinds
Suspension, 5 kinds of bacteria suspensions of above-mentioned acquisition is well mixed, so as to obtain the complex micro organism fungicide.Seed culture used
Base and fermentation medium, by every liter of calculating, containing 5~15g of glucose, 1~5g of tryptone, dusty yeast 1~5g, KH2PO4 0.05
~0.5g, K2HPO40.05~0.5g, MgSO4·7H20.05~0.5g of O, balance of water.
Above-mentioned each bacterium can select commercialized strain, and need not especially indicate.
Wherein it is possible to select following bacterial strain：Bacillus stearothermophilus (Bacillus stearothermophilus)
(it is preserved in China Committee for Culture Collection of Microorganisms's common micro-organisms center of Pekinese, preservation on March 5th, 2012
Numbering：CGMCC No.5846), Geobacillus stearothermophilus (Geobacillus thermophilus) (deposit number
ACCC10253), streptococcus thermophilus (deposit number CICC20376) (Streptococcus thermophilus), De Shi breast bars
(strain was preserved in Pekinese's Chinese microorganism strain to bacterium (Lactobacillus delbrueckii) on March 5th, 2012
Preservation administration committee common micro-organisms center, deposit number be CGMCC No.5845), thermophilic fungus destroyed wire
(Myceliophthora thermophila) (deposit number ACCC30571), Candida tropicalis agent (CCTCC NO:
M2014180) etc..
3rd, the fermentation of complex micro organism fungicide
To access step 2 in pretreated sludge raw material) the middle complex micro organism fungicide for obtaining, in 30-60 DEG C, pH5-
Fermented under conditions of 8.
The inoculum concentration of described complex micro organism fungicide is 2-20ml/kg sludge；
Preferably, while accessing nutrient salt solution, the access amount of nutrient salt solution is 5-50g/1000kg sludge, the battalion
Supporting every liter of salting liquid includes (NH4)2SO4, 1~15g；KH2PO4, 1-5g；K2HPO4·3H2O, 1-5g；CaCl2, 0.01~0.1g；
FeSO4, 0.1~1mg；Dusty yeast, 1~15g；MgCl2·6H2O, 1-1.5g；Cysteine, 0.1~5g；
Above-mentioned various material mixings are stirred；Then the sludge that will be prepared transports to fermentation plant, carries out compost fermentation；
Preferably, compost fermentation method is：Said mixture heap is grown up 60 meters, wide 2 meters, 0.8 meter high of bar pile, along bar
The length of pile every 75cm in bar pile both sides to interlocking and tiltedly bury a porous breather pipe (" basket formula breather pipe "), the porous breather pipe
Passed to side bottom and parallel with bar pile cross section from bar pile one side top, the staggeredly distance of the breather pipe of this pile both sides is
75cm。
The temperature of fermentation plant is normal temperature (25-35 DEG C), sludge fermentation after 2 days temperature reach more than 50 DEG C, and maintain 50
3 days more than DEG C, turned over a heap every 3 days backward, common fermentation 14 days, sludge becomes thoroughly decomposed substantially, and stink disappears, temperature drop to 40 DEG C with
Under, moisture drops to less than 35%, prepares saline-alkali soil restoration agent.
4th, secondary fermentation
By the above-mentioned tunning of 80~100 weight portions, 60~90 weight portions by pretreating sludge, 40~50 weight
The secondary fermentation composite bacterial group of part stirs, and sludge scatters after stirring carry out static aerobic culture 3~5 days, hair
The temperature in ferment workshop is normal temperature (25-35 DEG C), that is, obtain the soil-repairing agent containing a large amount of bacterial floras in the same direction.
Preferably, the secondary fermentation of the above-mentioned tunning of 90 weight portions, the sludge of 75 weight portions, 45 weight portions is combined
Bacterial flora stirs after fermentation.
Wherein, the secondary fermentation composite bacterial group is Lactobacillus plantarum, trichoderma reesei, De Shi lactobacillus lactis, methane
Thermophilic micrococcus luteus, thermophilic metal fever anaerobic bacillus(cillus anaerobicus), one or more of Thermoactinomyces albus.Preferably, the secondary fermentation is answered
Close the mixture that bacterial flora is above-mentioned wherein bacterium；It is furthermore preferred that the secondary fermentation composite bacterial group is 1~5 for mass ratio：1
~5：5~10：5~10：1~5：1~5：1~5 Lactobacillus plantarum, trichoderma reesei, De Shi lactobacillus lactis, that methane is thermophilic is micro-
Coccus, thermophilic metal fever anaerobic bacillus(cillus anaerobicus), the mixture of Thermoactinomyces albus, it is furthermore preferred that secondary fermentation composite bacterial group
For mass ratio for 2: 5: 7: 6: 1: 3: 4 Lactobacillus plantarum, trichoderma reesei, De Shi lactobacillus lactis, methane is thermophilic micrococcus luteus, thermophilic
Metal fever anaerobic bacillus(cillus anaerobicus), the mixture of Thermoactinomyces albus.Above-mentioned each bacterium can select commercialized strain, and need not
Especially indicate.Can for example be selected from：Methane is thermophilic micrococcus luteus (Methanothermomicshengliense), and preserving number is
ACCC00580, Lactobacillus plantarum (Lactobacillusplantarum) preserving number is ACCC11016, thermophilic metal fever anaerobism bar
Bacterium (Thermoanaerobactersideroph..) preserving number is ACCC00600, Thermoactinomyces albus
(Thermoactinomycesalbus) preserving number is CCTCCAA97016, trichoderma reesei (Trichodermareesei) preservation
Number be ACCC30911, De Shi lactobacillus lactis (Lactobacillusdelbrueckii) preserving number be ACCC10183, solve egg
White vibrios (Vibrioproteolyticus) preserving number is MCCC1H00046.
Preferably, first three day is stirred stirring every 4~6h during the second wheel fermentation, from the 4th day, is turned over every 12 hours
Material is once.
5th, above-mentioned saline-alkali soil restoration agent is crushed, metering, packs and be put in storage.
Present invention simultaneously provides a kind of salt affected soil in-situ remediation method, methods described is：By above-mentioned salt affected soil reparation
Agent is applied to saline and alkaline soil, and every mu of amount of application of salt-soda soil saline-alkali soil restoration agent is 300-500kg；
Preferably, methods described also includes applying fertilizer, and the fertilizer is 1 with the weight ratio of saline-alkali soil restoration agent:10
~100, the composition of the fertilizer is：Organic animal excreta 20-40 parts, humic acid 3-10 parts, water-loss reducer 0.4-2 parts, butanedioic acid 2-3
Part, wherein water-loss reducer is product common in agricultural production, for example：Acrylamide and acrylic acid salt crosslinking copolymerization thing (polyacrylamide
Amine, Sodium Polyacrylate, polyacrylic acid potassium, ammonium polyacrylate etc.)；Starch grafted acrylate crosslinking copolymerization thing (starch-grafted third
Olefin(e) acid salt).
The beneficial effect of the soil-repairing agent that the present invention is prepared is：
(1) according to northern alkaline land soil situation, make use of has relatively strong decomposition, conversion, profit to salt and alkali component to the present invention
With the beneficial microbe of ability, while it is rationally compounded with phosphorus decomposing, molten potassium and nitrogen-fixing bacteria, repairing double salt alkali-affected soil it is same
When be remarkably improved soil fertility, using alkaline land soil structure Opsonizing method of the present invention, significantly reduce alkaline land soil
Salt content, soil pH, the gas permeability of soil, water-stable granule mechanical stability and water capacity are improved, in improving soil
Total nitrogen content, effective potassium content, available phosphorus content.
(2) present invention can by the use of stalk, feces of livestock and poultry, sludge, house refuse and agricultural byproducts leftover bits and pieces etc. as
Composite microbic bacterial fertilizer fermentation substrate and conditioning agent, had not only realized the reparation of salinized soil but also can solve to a certain degree above-mentioned
The problems such as environmental pollution that matrix belt is come.
(3) the invention provides the composite microbic bacterial fertilizer solid fermentation process of system, process is simple and easy to control, significantly improves
Production efficiency, while saved salt-soda soil rehabilitation cost.
(4) salinized soil renovation technique of the present invention is applied widely, can be in arid, semiarid, semi-moist, height
Cold and Huanghe Beach, littoral plain low laying areas etc. use, and have broad application prospects.Sludge salt affected soil of the present invention is repaired
Agent beneficial effect is to turn waste into wealth that solve the problem dissolved of sludge to become rubbish be resource, and sludge soil-repairing agent solves soil
Salt-soda soil problem, while the excellent soil of soil remediation.
Specific embodiment
It is specially a kind of with reference to specific embodiment to a kind of saline-alkali soil restoration agent from sludge of the invention
The method for preparing saline-alkali soil restoration agent using microbiological treatment sludge, the saline-alkali soil restoration agent for obtaining, and its disappear in sludge
Application in receiving is described in detail.The measuring method of all technical of the sludge used in this experiment is according to middle Chinese
People republic agricultural industry criteria (NY884-2004) is carried out.
A kind of preparation method of sludge soil-repairing agent of embodiment 1
1st, sludge pretreatment of raw material
Take from carries out sampling analysis, the fundamental property of sludge to the dewatered sludge of Beijing's Sewage Plant (sanitary sewage)
For：Moisture content 78.9%, total organic matter 540g/kgDM, water-soluble total nitrogen 3.1g/kgDM, coliform value >=23,000MPN/
kgDM.By domestic sludge after above-mentioned dehydration in airing field stacking, drying 10~15 days, chemical deodorizing agent can be properly added.Tentatively
Stink is reduced, and water content is reduced to less than 40%, beneficial to subsequent operation.Block sludge after drying, according to every 100kg's
Added in block sludge：Stalk 10-15kg after crushing, the pig manure 10-20 kg after fermentation, humus 10-20 kg, composite fertilizer
15-30kg, amino acid 3-8 kg, the composite fertilizer include potash fertilizer, nitrogenous fertilizer and phosphate fertilizer, and are respectively potash fertilizer 2-6 by weight
Part, phosphate fertilizer 5-8 parts, nitrogenous fertilizer 8-15 parts.Pulverizer or crusher in crushing are used after above-mentioned each component is well mixed, screen cloth, system is crossed
It is standby into the sludge granule of particle diameter only 10mm.
2nd, the preparation of complex micro organism fungicide
The complex micro organism fungicide is included：Bacillus stearothermophilus microbial inoculum, thermophilus bacteria agent, above two bacterium
Mixed proportion between agent is 1:1.
(1) preparation of bacteria suspension：
Bacillus stearothermophilus microbial inoculum, thermophilus bacteria agent (being all common commercial microbial inoculum) are respectively connected to first
To in the 100ml shaking flasks equipped with 15ml seed culture mediums, under conditions of temperature is controlled on shaking table for 55-60 DEG C, pH6.5-7.5
Water-bath concussion and cultivate 24h carries out seed culture 18h, obtains seed liquor；
Then access fermentor liquid with 5 volume % ratios to be cultivated, the cultivation temperature of cultures at different levels is 25 DEG C, culture
Time is 24 hours, so as to respectively obtain respective bacteria suspension, the bacteria suspension of above-mentioned acquisition is well mixed, described so as to obtain
Complex micro organism fungicide.Seed culture medium and fermentation medium used, by every liter of calculating, containing the g of glucose 5~15, tryptose
1~5g of peptone, dusty yeast 1~5g, KH2PO40.05~0.5g, K2HPO40.05~0.5g, MgSO4·7H20.05~0.5g of O,
Balance of water.
3rd, the fermentation of complex micro organism fungicide
To access step 2 in pretreated sludge raw material) the middle complex micro organism fungicide for obtaining, in 30-50 DEG C, pH5-
Fermented under conditions of 7.
The inoculum concentration of described complex micro organism fungicide is 5ml/kg sludge；
Nutrient salt solution is accessed simultaneously, and the access amount of nutrient salt solution is 10g/1000kg sludge, the nutrient salt solution
Every liter includes (NH4)2SO4, 1~15g；KH2PO4, 1-5g；K2HPO4·3H2O, 1-5g；CaCl2, 0.01~0.1g；FeSO4,
0.1~1mg；Dusty yeast, 1~15g；MgCl2·6H2O, 1-1.5g；Cysteine, 0.1~5g；
Above-mentioned various material mixings are stirred；Then the sludge that will be prepared transports to fermentation plant, carries out compost fermentation；
Compost fermentation method is：Said mixture heap is grown up 60 meters, wide 2 meters, 0.8 meter high of bar pile, along the length of bar pile
To, interlocking every 75cm in bar pile both sides and tiltedly bury a porous breather pipe (" basket formula breather pipe "), the porous breather pipe is from bar pile
One side top is passed to side bottom and parallel with bar pile cross section, and the staggeredly distance of the breather pipe of this pile both sides is 75cm.
The temperature of fermentation plant is normal temperature (25-35 DEG C), sludge fermentation after 2 days temperature reach more than 50 DEG C, and maintain 50
3 days more than DEG C, turned over a heap every 3 days backward, common fermentation 14 days, sludge becomes thoroughly decomposed substantially, and stink disappears, temperature drop to 40 DEG C with
Under, moisture drops to less than 35%, prepares saline-alkali soil restoration agent.
4th, secondary fermentation
By the above-mentioned tunning of 80~100 weight portions, 60~90 weight portions by pretreating sludge, 40~50 weight
The secondary fermentation composite bacterial group of part stirs, and sludge scatters after stirring carry out static aerobic culture 3~5 days, hair
The temperature in ferment workshop is normal temperature (25-35 DEG C), that is, obtain the soil-repairing agent containing a large amount of bacterial floras in the same direction.
Wherein, the secondary fermentation composite bacterial group is Lactobacillus plantarum, trichoderma reesei, De Shi lactobacillus lactis, methane
Thermophilic micrococcus luteus, thermophilic metal fever anaerobic bacillus(cillus anaerobicus), Thermoactinomyces albus.Wherein, the microbial bacterial agent is that mass ratio is 1~5：
1~5：5~10：5~10：1~5：1~5：1~5 Lactobacillus plantarum, trichoderma reesei, De Shi lactobacillus lactis, methane is thermophilic
Micrococcus luteus, thermophilic metal fever anaerobic bacillus(cillus anaerobicus), the mixture of Thermoactinomyces albus.
5th, above-mentioned saline-alkali soil restoration agent is crushed, metering, packs and be put in storage.
A kind of preparation method of sludge soil-repairing agent of embodiment 2
1st, sludge pretreatment of raw material
Operate as described in Example 1, difference be agricultural production leftover bits and pieces after the crushing for corn flour, rice chaff,
The mixture of dregs of beans, stalk；
The organic fertilizer is the pig manure mixture after natural pond fertilizer and fermentation.
2nd, the preparation of complex micro organism fungicide
Operate as described in Example 1, difference is to have used bacillus stearothermophilus, stearothermophilus ground gemma bar
Bacterium, streptococcus thermophilus (being all common commercial microbial inoculum), the ratio of above-mentioned three kinds of bacterium is：1:1:3.
3rd, the fermentation of complex micro organism fungicide
Operate as described in Example 1.
4th, secondary fermentation
Operate as described in Example 1, but secondary fermentation composite bacterial group is the plant that mass ratio is 2: 5: 7: 6: 1: 3: 4
Lactobacillus, trichoderma reesei, De Shi lactobacillus lactis, methane is thermophilic micrococcus luteus, thermophilic metal fever anaerobic bacillus(cillus anaerobicus), Thermoactinomyces albus
Mixture.
5th, above-mentioned soil-repairing agent is crushed, metering, packs and be put in storage.
A kind of preparation method of sludge soil-repairing agent of embodiment 3
1st, sludge pretreatment of raw material
Operate as described in Example 1.
2nd, the preparation of complex micro organism fungicide
Operate as described in Example 1, difference is to have used bacillus stearothermophilus microbial inoculum, streptococcus thermophilus bacterium
Agent, thermophilic fungus destroyed wire microbial inoculum, Candida tropicalis agent and Lactobacillus delbrueckii microbial inoculum, the ratio of above-mentioned five kinds of bacterium is 1：2：1：3：
5。
3rd, the fermentation of complex micro organism fungicide
Operate as described in Example 1.
4th, secondary fermentation
Operate as described in Example 1, but microbial bacterial agent be mass ratio for 2: 5: 7: 6: 1: 3: 4 Lactobacillus plantarum,
Trichoderma reesei, De Shi lactobacillus lactis, methane is thermophilic micrococcus luteus, thermophilic metal fever anaerobic bacillus(cillus anaerobicus), the mixing of Thermoactinomyces albus
Thing.
5th, above-mentioned soil-repairing agent is crushed, metering, packs and be put in storage.
The saline and alkaline soil field experiment of embodiment 4
100 mu of microorganism remediation experiments of saline-alkali soil are carried out in Hebei cities and towns proving ground
(1) test site
Hebei cities and towns proving ground belongs to beach saline land type.Its salinity composition of beach saline land area of wheat Cl-With
SO4 2-Ratio be about 3：1, had comparative advantage with chloride, Groundwater buried depth is shallow and salinity is high.Salt-soda soil Wheat Growing Soils reason
Change proterties to deteriorate, its soil salt content is general 0.3~0.4%, and wheat, corn are caused up to more than 0.5% in serious plot
The salinity of harm is mainly NaCl, Na2SO4、Na2CO3、NaHCO3Deng.Salt-soda soil Wheat Growing Soils dysplasia, porosity is small, logical
Permeability is poor；The soil water, fertilizer, air and heat are uncoordinated；Salt, alkali, cool, the thin four pests are simultaneously deposited；Water conservation, fertilizer-preserving ability are poor, are grown in salt-soda soil
On wheat, the stress conditions of Salt Strees Condition are in for a long time, have a strong impact on wheat, corn normal growth development.
(2) test procedure
A the soil-repairing agent that embodiment 1-3 is obtained is by () according to the amount of application of every mu of salt-soda soil saline-alkali soil restoration agent
The ratio of 500kg is piled up, while according to 1:50 (fertilizer：Soil-repairing agent) ratio add fertilizer, the group of the fertilizer
Turn into：10 parts of 20 parts of pig manure, natural pond fertilizer after fermentation, 5 parts of humic acid, 1 part of polyacrylamide, 2 parts of butanedioic acid.
B () is uniformly sprinkled into salt-soda soil to be repaired after said mixture is made into its uniform mixing using turning machine, utilize
Rotary cultivator mixes it with the soil of saline and alkaline ground surface 40cm, after 3 months on improved salt affected soil maize planting.
D () sets two groups of control groups, one group is undressed saline-alkali soil, and another group is saline-alkali soil only using fertilizer, and
With the same time maize planting of test group.
(3) experimental design
Test is carried out in spring, if 4 repetitions, respectively：The soil-repairing agent of embodiment 1-3, negative control, 4 weights
It is multiple, random district's groups arrangement, plot area is 60m2, corn distance between rows and hills is 60cmX30cm, and 334 plants can be planted per cell, converts into 55
666.7 plants/hm2。
(4) growing way observation
Using the single plant yield of soil-repairing agent is high, growing way is than only applying fertilizer and blank is (good.Repaiied using soil
The treatment plant of multiple agent grows vigorous in whole breeding time, and growing way is stronger, and either plant height, stem be thick, 100-grain weight and grain number per spike are equal
There is greater advantage, and whole process of the test occurs without de- fertilizer, disease.
(5) yield result
As it can be seen from table 1 the effect of the soil-repairing agent+fertilizer in-situ treatment in embodiment 3 is best, embodiment 1,2
Take second place, respectively there is quality, but all far above the control group for only applying fertilizer, and untreated control group yield is minimum.And, pass through
Found after follow-up micro-analysis, the soil after soil-repairing agent+fertilizer in-situ treatment in addition to the organic matter containing high level,
The also microorganism containing specific function, and contained microorganism can show certain fertilizer effect.Fully show this soil
Renovation agent and soil remediation method can effectively improve salinized soil, promote the effect of plant growth.
The soil-repairing agent of table 1 applies rear Yield comparison
(6) soil-repairing agent prepared using embodiment 1-3 carries out the soil remediation of salinization of soil after 1 year, to plantation field
Soil detected, as a result as shown in table 2：
Table 2 carries out the soil root system after repairing 1 year using soil-repairing agent prepared by embodiment 1-3
From table 2, the soil-repairing agent prepared using the present invention is obviously improved after 1 year to growing area soil,
42-57% is improved in soil aeration space, and soil granular structure improves 51-70%, and soil total phosphorus content improves 48-71%, soil
Total nitrogen content improves 40-62%.
The invention is not limited in foregoing specific embodiment.The present invention is expanded to and any in this manual disclosed
New feature or any new combination, and disclose any new method or process the step of or any new combination.
Claims (9)
1. the preparation method of a kind of saline-alkali soil restoration agent from sludge, it is characterised in that described preparation method is included such as
Lower step：1) sludge pretreatment of raw material；2) preparation of complex micro organism fungicide；3) fermentation of complex micro organism fungicide；4) it is secondary
Fermentation；5) soil-repairing agent is obtained, is crushed, metering is packed and is put in storage.
2. a kind of preparation method of saline-alkali soil restoration agent from sludge as claimed in claim 1, wherein sludge raw material
Pre-process and be：The domestic sludge that city domestic sewage treatment plant produces, in airing field stacking, dries 10~15 days, can suitably add
Plus chemical deodorizing agent.It is preliminary to reduce stink, and water content is reduced to less than 40% from 75% or so, beneficial to subsequent operation.Dry in the air
Block sludge after solarization, with pulverizer or crusher in crushing, crosses screen cloth, is made the sludge granule of particle diameter only 10mm, standby.It is excellent
Choosing, can be added according in the block sludge of every 100kg before pulverising step：Agricultural production leftover bits and pieces 10- after crushing
15kg, organic fertilizer 10-20kg, humus 10-20kg, composite fertilizer 15-30kg, amino acid 3-8kg；Agricultural after the crushing is raw
It is selected from leftover bits and pieces such as wheat bran, corn flour, rice chaff, dregs of beans, stalk, bean dregs, pomace, sawdust, coconut palm chaff or manioc wastes to give birth to heel
In at least one, drying to moisture is 3%-8%, and is crushed to 100-150 mesh；The organic fertilizer be animal wastes,
Cake fertilizer, compost, make compost, barnyard manure, natural pond fertilizer and green manure at least one；The composite fertilizer includes potash fertilizer, nitrogenous fertilizer and phosphate fertilizer, and presses
Weight portion is respectively potash fertilizer 2-6 parts, phosphate fertilizer 5-8 parts, nitrogenous fertilizer 8-15 parts.
3. a kind of preparation method of saline-alkali soil restoration agent from sludge as claimed in claim 1, wherein composite microbial
Thing microbial inoculum is prepared as：
The complex micro organism fungicide is included：Bacillus stearothermophilus microbial inoculum, thermophilus bacteria agent, thermophilic fungus destroyed wire bacterium
Two or more of agent, Candida tropicalis agent and Lactobacillus delbrueckii microbial inoculum, the mixed proportion between each microbial inoculum are 1~10:1
~10:1~10:1~10:1~10.
(1) preparation of bacteria suspension：
Microorganism fungus kind is respectively connected in the 100ml shaking flasks equipped with 15ml seed culture mediums first, temperature is controlled on shaking table
Spend for water-bath concussion and cultivate 24h carries out seed culture 18h under conditions of 55-60 DEG C, pH6.5-7.5, obtain seed liquor；
Then access fermentor liquid with the 5 volume % of volume % to 10 ratios to be cultivated, the cultivation temperature of cultures at different levels is 25
DEG C to 35 DEG C, incubation time is 24 hours to 48 hours, so as to respectively obtain the respective bacteria suspension of the microorganism fungus kind, will be upper
The bacteria suspension for stating acquisition is well mixed, so as to obtain the complex micro organism fungicide.Seed culture medium used and fermented and cultured
Base, by every liter of calculating, containing 5~15g of glucose, 1~5g of tryptone, dusty yeast 1~5g, KH2PO40.05~0.5g,
K2HPO40.05~0.5g, MgSO4·7H20.05~0.5g of O, balance of water.
4. a kind of preparation method of saline-alkali soil restoration agent from sludge as claimed in claim 1, wherein composite microbial
The fermentation of thing microbial inoculum is：To access step 2 in pretreated sludge raw material) the middle complex micro organism fungicide for obtaining, in 30-60
DEG C, fermented under conditions of pH5-8.
The inoculum concentration of described complex micro organism fungicide is 2-20ml/kg sludge；
Preferably, while accessing nutrient salt solution, the access amount of nutrient salt solution is 5-50g/1000kg sludge, the nutritive salt
Every liter of solution includes (NH4)2SO4, 1~15g；KH2PO4, 1-5g；K2HPO4·3H2O, 1-5g；CaCl2, 0.01~0.1g；
FeSO4, 0.1~1mg；Dusty yeast, 1~15g；MgCl2·6H2O, 1-1.5g；Cysteine, 0.1~5g；
Above-mentioned various material mixings are stirred；Then the sludge that will be prepared transports to fermentation plant, carries out compost fermentation.
5. a kind of preparation method of saline-alkali soil restoration agent from sludge as claimed in claim 1, wherein secondary fermentation
For：By the above-mentioned tunning of 80~100 weight portions, 60~90 weight portions by pretreating sludge, 40~50 weight portions
Secondary fermentation composite bacterial group stir, and sludge scatters after stirring carry out static aerobic culture 3~5 days, fermenting vehicle
Between temperature be normal temperature (25-35 DEG C), that is, obtain the soil-repairing agent containing a large amount of bacterial floras in the same direction.
Wherein, secondary fermentation composite bacterial group is Lactobacillus plantarum, trichoderma reesei, De Shi lactobacillus lactis, methane is thermophilic
Micrococcus luteus, thermophilic metal fever anaerobic bacillus(cillus anaerobicus), one or more of Thermoactinomyces albus.Preferably, first three day during the second wheel fermentation
Stirring is stirred every 4~6h, from the 4th day, every 12 hours stirrings once.
6. a kind of saline-alkali soil restoration agent from sludge, it is characterised in that described sludge soil-repairing agent is by right
It is required that what any one of 1-5 was prepared.
7. a kind of application of saline-alkali soil restoration agent from sludge, the application refers to by described sludge soil-repairing agent
It is applied to the in-situ immobilization of salt affected soil.
8. as claimed in claim 7 to apply, the application is：Above-mentioned saline-alkali soil restoration agent is applied to saline and alkaline soil, often
The amount of application of mu salt-soda soil saline-alkali soil restoration agent is 300-500kg；Preferably, methods described also includes applying fertilizer, described
Fertilizer is 1 with the weight ratio of saline-alkali soil restoration agent:10~100, the composition of the fertilizer is：Organic animal excreta 20-40 parts, corruption
Grow it is sour 3-10 parts, water-loss reducer 0.4-2 parts, butanedioic acid 2-3 parts, wherein water-loss reducer is common product in agricultural production, for example：Third
Acrylamide-acrylates crosslinking copolymerization thing (polyacrylamide, Sodium Polyacrylate, polyacrylic acid potassium, ammonium polyacrylate etc.)；Starch
Grafted propylene hydrochlorate crosslinking copolymerization thing (starch grafted acrylate).
9. a kind of method that sludge is dissolved, methods described is a kind of saline-alkali soil from sludge described in usage right requirement 6
Earth renovation agent carries out sludge and dissolves.
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