CN106927971A - A kind of sludge soil-repairing agent, preparation method and its application in sludge is dissolved - Google Patents
A kind of sludge soil-repairing agent, preparation method and its application in sludge is dissolved Download PDFInfo
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- CN106927971A CN106927971A CN201710098921.XA CN201710098921A CN106927971A CN 106927971 A CN106927971 A CN 106927971A CN 201710098921 A CN201710098921 A CN 201710098921A CN 106927971 A CN106927971 A CN 106927971A
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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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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C11/00—Other nitrogenous fertilisers
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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
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/50—Treatments combining two or more different biological or biochemical treatments, e.g. anaerobic and aerobic treatment or vermicomposting and aerobic treatment
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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- Treatment Of Sludge (AREA)
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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, organic matter is decomposed with thermophilic bacteria, access bacterial flora in the same direction.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 micro- life the present invention relates to a kind of method that sludge soil-repairing agent and its a kind of sludge are dissolved
Thing treatment sludge prepares the method for soil-repairing agent, the sludge soil-repairing agent of acquisition, and its this sludge soil-repairing agent exists
Sludge dissolve in application.
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.
In for the method for current China's municipal sludge treatment, solid-state fermentation groove mixing type compost is widely used
Technique.It has investment in fixed assets few, and equipment operating cost is low, it is easy to the advantages of supporting, although it is long to there is fermentation period, accounts for
Ground area is big, the low shortcoming for the treatment of effeciency, but because municipal sewage plant typically build countryside in, problems of land utilization is not protruded,
Therefore this compost method also is continuing to play its advantage., it is necessary to use wood in solid-state fermentation groove mixing type composting process
, used as conditioner, it can play a part of water suction, fluffy, thin oxygen for bits, powder of straw, rice husk etc..But because certainly during compost
There is decomposition, slump in body, it is impossible to enough to play support from start to finish, dredge oxygen effect.Therefore only with groups such as wood chip, powder of straw, rice husks
Into conditioner can only play of short duration effect, gradually lose conditioning functions in the middle and later periods of compost；So as to influence sludge composting
Treatment effect, extend the compost time, increase Treatment of Sludge cost, and then influence recycling sludge recycle.
Salt-soda soil is a species of salt aggregation, refers to that the salinity contained by soil the inside has influence on the normal life of crop
Long, according to UNESCO and food and agricultural organization's incomplete statistics, the area in whole world salt-soda soil is 9.5438 hundred million hectares,
Wherein China is 99,130,000 hectares.The formation of China's alkaline earth and alkali-affected soil, it is most of accumulative relevant with Carbonates In Soil,
Thus basicity is universal higher, and serious salt affected soil regional plant can hardly survive.Existing modifying agent can only slowly change
The saline and alkaline in kind salt-soda soil, thus have impact on the growth of plant, be sometimes even several seasons in a season, and when long
Between do not use and can also form salt-soda soil.The microbial population of alkaline land soil is reduced.Edaphon has with soil fertility
And close relationship, microbial activity higher is the important symbol of fertile soil.Therefore, edaphon is in soil and soil
Played an important role in the formation of earth fertility and evolution.Secondary salinization of land is with the exacerbation of saline and alkaline degree, edaphon
Activity substantially reduce, population quantity drastically reduces.Particularly aerobic microbiological, because air capacity is reduced, oxygen is not enough, quantity
It is decreased obviously.
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 soil-repairing agent provided by the present invention is for the difficulty for overcoming existing sludge to dissolve, sludge soil of the present invention
Renovation agent not only solves sludge treatment problem, and turns waste into wealth, and sludge is become soil-repairing agent, can repair saline-alkali soil
Ground, removing the heavy metal of contaminated land does not have the danger of any side effect and secondary pollution.
Sludge soil-repairing agent of the present invention solves its technical problem, and the technical scheme for being used is：To city sewage and sludge
Early stage treatment makes its water content 40% or so, and the main component of sludge is that organic matter is adapted to culture bacterial flora.Use thermophilic bacteria
Organic matter is decomposed can effectively kill germ composition simultaneously.Mix the bacterial flora in the same direction implantation cultivated.Bacterial flora life in the same direction
Power is powerful to remove harmful bacteria body again, while bacterial flora produces sulfuric acid matter.Municipal sludge complicated component all contains heavy metal, sulphur
Sour matter can remove heavy metal Hg, lead, zinc, cadmium, chromium, nickel and petroleum-type hydride pollutant, be repaired using sludge through overtesting
After agent 20 days, the effective clearance of ratio of the various pollutants of soil reaches more than 95% and meets national standard.Repair by chemical fertilizer
The soil of pollution by pesticides, experiment shows that use sludge soil-repairing agent various harmful heavy metals can be reduced marks well below country
It is accurate.Sulfuric acid matter can be acidified hardened saline and alkaline soil simultaneously.Or organic fertilizer, is beneficial to agricultural production and reduces chemistry examination well
The use of agent and the use of chemical fertilizer, pollution sources and secondary pollution have been prevented from source.
The preparation method of this soil-repairing 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
Biological deodorant.Preliminary to reduce stink, machine is dehydrated and water content is reduced to less than 40% from 75% or so, beneficial to follow-up behaviour
Make.Block sludge after drying, with pulverizer or crusher in crushing, crosses screen cloth, is made the sludge granule of particle diameter only 10mm, standby
With.
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 10-20kg, humus 10-20kg, composite fertilizer 15-30kg, amino acid 3-8kg；
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 culture of thermophilic bacteria
4 DEG C of commercialized thermophilic bacteria strains of Refrigerator store are taken, the ring strain of picking one is linked into equipped with the training of 15ml seeds
Support in the 100ml shaking flasks of base, it is water-bath concussion and cultivate 24h under conditions of 55-60 DEG C, pH6.5-7.5 that temperature is controlled on shaking table
Seed culture 18h is carried out, seed liquor is obtained；
Seed culture medium used, by every liter of calculating, containing 5~15g of glucose, 1~5g of tryptone, 1~5g of dusty yeast,
KH2PO40.05~0.5g, K2HPO40.05~0.5g, MgSO4·7H20.05~0.5g of O, balance of water.
Described thermophilic bacteria includes commercialized bacillus stearothermophilus, sporotrichum thermophile, Clostridium thermocellum, thermophilic chain
One or more in coccus, thermophilic fungus destroyed wire, Lactobacillus delbrueckii, aspergillus fumigatus or thermophilic clostridium butyricum；
Preferably can be the combination of various bacterium, it is furthermore preferred that be the mixing of the first thermophilic bacteria and the second thermophilic bacteria,
The mixed proportion of the two is 5-10: 0-10, wherein the first thermophilic bacteria is for can be with high temperature degradation fats, cellulose family, wooden
One or more in the thermophilic bacteria of plain class, the second thermophilic bacteria be can with high temperature degradation starch, protein, acidifying it is thermophilic
One or more in bacterium；Above-mentioned each bacterium can select commercialized strain, and need not especially indicate.
Wherein it is possible to the thermophilic bacteria of high temperature degradation fats, cellulose family, lignin can select to be not limited to choosing
Select：Bacillus stearothermophilus (Bacillus stearothermophilus) (is preserved in Pekinese on March 5th, 2012
China Committee for Culture Collection of Microorganisms's common micro-organisms center, deposit number：CGMCC No.5846), sporotrichum thermophile
(Sporotrichum thermophile) (deposit number CICC2440), thermophilic fungus destroyed wire (Myceliophthora
Thermophila) (deposit number ACCC30571), aspergillus fumigatus (Aspergillus fumigatus) (deposit number
CICC2434), Geobacillus stearothermophilus (Geobacillus thermophilus) (deposit number ACCC10253), thermophilic
Hydrothermal solution bacillus (Bacillus thermoliquefaciens) (CICC20647), bending thermomonospora fusca
(Thermomonospora curvata) (deposit number ACCC41067)；High temperature lignin-degrading bacteria：Bacillus licheniformis
(Bacillus licheniformis) (deposit number ACCC11080), high temperature pectin degrading bacterium：Aspergillus carbonerius
(Aspergillus carbonarius) (deposit number CICC41254)；
Be able to can select to be not limited to selection with the thermophilic bacteria of high temperature degradation starch, protein, acidifying：High-temperature starch drops
Solution bacterium：Thermomonospora fusca (Thermomonospora fusca) (deposit number CCTCC AB93039)；High temperature protein
Degradation bacteria：Thermoactinomyces vulgaris (Thermoactinomyces vulgaris) (deposit number ACCC41061), short and small gemma
Bacillus (Bacillus pumilus) (deposit number ACCC10113)；2 plants of high temperature lactic acid bacteria：Lactobacillus delbrueckii
(Lactobacillus delbrueckii) (strain is preserved in Pekinese's Chinese microorganism strain on March 5th, 2012 and protects
Hide administration committee common micro-organisms center, deposit number is CGMCC No.5845), streptococcus thermophilus (deposit number
CICC20376) (Streptococcus thermophilus) etc..
3rd, the first round fermentation of thermophilic bacteria
To access step 2 in pretreated sludge raw material) the middle thermophilic bacteria seed liquor for obtaining, in 50-60 DEG C, pH5-
First round fermentation is carried out under conditions of 8.
The inoculum concentration of described thermophilic bacteria seed liquor 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%.
4th, soil-repairing agent is obtained to accessing bacterial flora in the same direction in the sludge that becomes thoroughly decomposed
By the first round tunning of 80~100 weight portions, 60~90 weight portions by pretreating sludge, 40~50 weights
The bacterial flora in the same direction for measuring part stirs, and sludge scatters after stirring carry out static aerobic culture 3~5 days, fermentation plant
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.
Preferably, by the first round tunning of 90 weight portions, the sludge of 75 weight portions, 45 weight portions bacterial flora in the same direction
Stir after fermentation.
Wherein, the bacterial flora in the same direction is Lactobacillus plantarum, trichoderma reesei, De Shi lactobacillus lactis, methane is thermophilic microballoon
Bacterium, thermophilic metal fever anaerobic bacillus(cillus anaerobicus), one or more of Thermoactinomyces albus.Preferably, the microbial bacterial agent for it is above-mentioned its
The mixture of middle bacterium；It is furthermore preferred that it is 1~5 that the microbial bacterial agent is mass ratio：1~5：5~10：5~10：1~5：1~
5：It is 1~5 Lactobacillus plantarum, trichoderma reesei, De Shi lactobacillus lactis, methane is thermophilic micrococcus luteus, thermophilic metal fever anaerobic bacillus(cillus anaerobicus), white
The mixture of color thermophilic actinomycete, it is furthermore preferred that the microbial bacterial agent is the plant breast bar that mass ratio is 2: 5: 7: 6: 1: 3: 4
Bacterium, trichoderma reesei, De Shi lactobacillus lactis, methane is thermophilic micrococcus luteus, thermophilic metal fever anaerobic bacillus(cillus anaerobicus), Thermoactinomyces albus it is mixed
Compound.Above-mentioned each bacterium can select commercialized strain, and need not especially indicate.Can for example be selected from：It is micro- that methane is thermophilic
Coccus (Methanothermomicshengliense) preserving number is ACCC00580, Lactobacillus plantarum
(Lactobacillusplantarum) preserving number is ACCC11016, thermophilic metal fever anaerobic bacillus(cillus anaerobicus)
(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 soil-repairing agent is crushed, metering, packs and be put in storage.
The beneficial effect of the soil-repairing agent that the present invention is prepared is：
1st, in first round fermentation process, organic matter is decomposed with thermophilic bacteria can effectively kill germ composition simultaneously,
Technical target of the product meets Ministry of Agriculture's NY 884--2004 standards.
2nd, in the second wheel fermentation process, harmful bacteria body is removed again using the new bacterium mass-planting in the same direction for accessing, while carefully
Flora produces sulfuric acid matter.Sulfuric acid matter can remove the heavy metal in municipal sludge, for example：Mercury, lead, zinc, cadmium, chromium, nickel and oil
Hydrogen-like compound pollutant, after using sludge renovation agent 20 days through overtesting, the effective clearance of ratio of the various pollutants of soil
More than 95% is reached, meets national standard.
3rd, while sulfuric acid matter can be acidified hardened saline and alkaline soil.Or organic fertilizer, is beneficial to agricultural production and subtracts well
The use of few chemical reagent and the use of chemical fertilizer, pollution sources and secondary pollution have been prevented from source.
4th, Treatment of Sludge and the saline and alkaline betterment of land are realized the present invention treatment of " cooking-pot type ", are mixed with efficiently conditioning
The organic fertilizer in salt-soda soil, environmental protection, effect is good, the advantage being had no side effect for a long time to environment, uses the salt of rear improved soil
Alkali situation, uses First Year, you can by salt-soda soil increasing crop yield more than 20%, continuously uses can cause salt-soda soil within 3~5 years
Yield there is no notable difference with the yield in common soil.
Brief description of the drawings
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein：
Fig. 1 is a kind of preparation technology schematic flow sheet of sludge soil-repairing agent of the invention.
Specific embodiment
With reference to specific embodiment to sludge soil-repairing agent of the invention, preparation method and its in sludge is dissolved
Using being described in detail.The measuring method of all technical of the sludge used in this experiment is according to Chinese people's republicanism
State's 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, natural pond fertilizer 10-20kg, humus 10-20kg, composite fertilizer 15-30kg, ammonia
Base acid 3-8kg, the composite fertilizer includes potash fertilizer, nitrogenous fertilizer and phosphate fertilizer, and is respectively potash fertilizer 2-6 parts, phosphate fertilizer 5-8 by weight
Part, nitrogenous fertilizer 8-15 parts.Pulverizer or crusher in crushing are used after above-mentioned each component is well mixed, screen cloth is crossed, particle diameter is made only
The sludge granule of 10mm, it is standby.
2nd, the culture of thermophilic bacteria
4 DEG C of commercialized thermophilic bacteria strains of Refrigerator store are taken, the ring strain of picking one is linked into equipped with the training of 15ml seeds
Support in the 100ml shaking flasks of base, it is water-bath concussion and cultivate 24h under conditions of 55-60 DEG C, pH6.5-7.5 that temperature is controlled on shaking table
Seed culture 18h is carried out, seed liquor is obtained；
Seed culture medium used, by every liter of calculating, containing 5~15g of glucose, 1~5g of tryptone, 1~5g of dusty yeast,
KH2PO40.05~0.5g, K2HPO40.05~0.5g, MgSO4·7H20.05~0.5g of O, balance of water.
Described thermophilic bacteria only selects one kind, and what is used is：Bacillus stearothermophilus (Bacillus
Stearothermophilus) (it is preserved in China Committee for Culture Collection of Microorganisms of Pekinese on March 5th, 2012
Common micro-organisms center, deposit number：CGMCC No.5846)
3rd, the first round fermentation of thermophilic bacteria
To access step 2 in pretreated sludge raw material) the middle thermophilic bacteria seed liquor for obtaining, in 50-60 DEG C, pH5-
First round fermentation is carried out under conditions of 8.
The inoculum concentration of described thermophilic bacteria seed liquor is 2-20ml/kg sludge；
Nutrient salt solution is accessed simultaneously, and the access amount of nutrient salt solution is 5-50g/1000kg sludge, and the nutritive salt is molten
Every liter of 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；
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 in bar pile
Both sides interlock every 75cm and tiltedly bury a porous breather pipe (" basket formula breather pipe "), and the porous breather pipe is from the top of bar pile one side
Pass to side bottom and parallel with bar pile cross section, 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%.
4th, soil-repairing agent is obtained to accessing bacterial flora in the same direction in the sludge that becomes thoroughly decomposed
By the first round tunning of 80~100 weight portions, 60~90 weight portions by pretreating sludge, 40~50 weights
The bacterial flora in the same direction for measuring part stirs, and sludge scatters after stirring carry out static aerobic culture 3~5 days, fermentation plant
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, the bacterial flora in the same direction is Lactobacillus plantarum, trichoderma reesei, De Shi lactobacillus lactis, methane is thermophilic microballoon
Bacterium, 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：It is 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.
First three day is stirred stirring every 4~6h during the second wheel fermentation, from the 4th day, every 12 hours stirrings once.
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 2
1st, sludge pretreatment of raw material
Operate as described in Example 1.
2nd, the culture of thermophilic bacteria
Operate as described in Example 1, but use two kinds of thermophilic bacterias, respectively：For the first thermophilic bacteria is thermophilic with second
The mixing of hot bacterium, the mixed proportion of the two is 1：1, wherein the first thermophilic bacteria is selected from bacillus stearothermophilus, second is thermophilic
Hot bacterium is selected from Lactobacillus delbrueckii.
3rd, the first round fermentation of thermophilic bacteria
Operate as described in Example 1.
4th, soil-repairing agent is obtained to accessing bacterial flora in the same direction in the sludge that becomes thoroughly decomposed
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.
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 culture of thermophilic bacteria
Operate as described in Example 1, but use the mixture of thermophilic bacteria, respectively：It is the first thermophilic bacteria and the
The mixing of two thermophilic bacterias, the mixed proportion of the two is 1：1, wherein the first thermophilic bacteria is selected from bacillus stearothermophilus, thermophilic
Hot side spore mould (Sporotrichum thermophile), aspergillus fumigatus (Aspergillus fumigatus), stearothermophilus ground bud
Spore bacillus (Geobacillus thermophilus), thermophilic liquefaction bacillus, the second thermophilic bacteria be selected from Lactobacillus delbrueckii,
Thermomonospora fusca (Thermomonospora fusca), thermoactinomyces vulgaris (Thermoactinomyces
Vulgaris) (, bacillus pumilus (Bacillus pumilus), Lactobacillus delbrueckii (Lactobacillus
Delbrueckii), streptococcus thermophilus.The ratio of above-mentioned several bacterium mixes for equal proportion.
3rd, the first round fermentation of thermophilic bacteria
Operate as described in Example 1.
4th, soil-repairing agent is obtained to accessing bacterial flora in the same direction in the sludge that becomes thoroughly decomposed
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 result of embodiment 4 is detected
(1) sludge that becomes thoroughly decomposed prepared by the inventive method is detected, the results are shown in Table 1；
The sludge testing result of becoming thoroughly decomposed that table 1 is prepared using the method for embodiment 1-3
From table 1, the sludge that becomes thoroughly decomposed prepared using the inventive method, harmful organism content is low, and living bacteria count amount is high,
The content of organic matter is high, and heavy metal chromium, mercury, arsenic, the content of lead are all greatly lowered；Colibacillus of excrement group number, induced worm egg death rate
Have obvious improvement, living bacteria count, the content of organic matter are all substantially improved, can for follow-up soil-repairing agent realize it is good
Good basis.
(2) soil-repairing agent prepared using the method for embodiment 3 is used for capsicum, eggplant, the plantation of wax gourd, with common
Biological organic fertilizer is control group, is tested, and in addition to the organic fertilizer difference for using, other implantation methods and planting conditions are homogeneous
Together, its rate of growth is counted respectively.Result is as shown in table 2.
Soil-repairing agent and farm manure field fertilizer efficiency comparative result that table 2 is prepared using the method for embodiment 3
From table 2, result of the test shows, the soil-repairing agent that the inventive method is obtained is made in capsicum, eggplant, wax gourd etc.
All it is widely used in thing, and crop yield can be made to increase production more than 15-21% (table 2).Compared with farm manure, present invention side
The fertilizer efficiency of the bio-organic fertilizer that method is obtained is high, good biocompatibility.
(3) 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 3：
Table 3 carries out the soil root system after repairing 1 year using soil-repairing agent prepared by embodiment 1-3
From table 3, the soil-repairing agent prepared using the present invention is obviously improved after 1 year to growing area soil,
40-51% is improved in soil aeration space, and soil granular structure improves 47-64%, and soil total phosphorus content improves 41-67%, soil
Total nitrogen content improves 31-48%.
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. a kind of preparation method of sludge soil-repairing agent, it is characterised in that described preparation method comprises the following steps：1) it is dirty
Mud pretreatment of raw material；2) culture of thermophilic bacteria；3) first round fermentation of thermophilic bacteria；4) it is thin in the same direction to being accessed in the sludge that becomes thoroughly decomposed
Flora；5) soil-repairing agent is obtained, is crushed, metering is packed and is put in storage.
2. a kind of preparation method of sludge soil-repairing agent as claimed in claim 1, it is characterised in that described 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 biological deodorant.Preliminary to reduce stink, machine is dehydrated and water content is reduced to less than 40% from 75% or so, beneficial to follow-up
Operation.Block sludge after drying, with pulverizer or crusher in crushing, crosses screen cloth, is made the sludge granule of particle diameter only 10mm,
It is standby, it is preferred that can be added according in the block sludge of every 100kg before pulverising step：Agricultural production after crushing is got a foothold
Material 10-15kg, organic fertilizer 10-20kg, humus 10-20kg, composite fertilizer 15-30kg, amino acid 3-8kg.
3. a kind of preparation method of sludge soil-repairing agent as claimed in claim 1, it is characterised in that described thermophilic bacteria
Culture be：4 DEG C of commercialized thermophilic bacteria strains of Refrigerator store are taken, the ring strain of picking one is linked into equipped with the training of 15ml seeds
Support in the 100ml shaking flasks of base, it is water-bath concussion and cultivate 24h under conditions of 55-60 DEG C, pH6.5-7.5 that temperature is controlled on shaking table
Seed culture 18h is carried out, seed liquor is obtained；Seed culture medium used, by every liter of calculating, containing 5~15g of glucose, 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.
4. a kind of preparation method of sludge soil-repairing agent as claimed in claim 3, it is characterised in that described thermophilic bacteria
It is the mixing of the first thermophilic bacteria and the second thermophilic bacteria, the mixed proportion of the two is 5-10: 0-10, wherein the first thermophilic bacteria
For that can be with one or more in high temperature degradation fats, cellulose family, the thermophilic bacteria of lignin, the second thermophilic bacteria
Can be with one or more in high temperature degradation starch, protein, the thermophilic bacteria of acidifying.
5. a kind of preparation method of sludge soil-repairing agent as claimed in claim 1, it is characterised in that described first round hair
Ferment is：To thermophilic bacteria seed liquor is accessed in pretreated sludge raw material, first is carried out under conditions of 50-60 DEG C, pH5-8
Wheel fermentation.The inoculum concentration of described thermophilic bacteria seed liquor is 2-20ml/kg sludge；Preferably, while accessing nutrient salt solution,
The access amount of nutrient salt solution is 5-50g/1000kg sludge, and every liter of the nutrient salt 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 dirt that will be prepared
Mud transports to fermentation plant, carries out compost fermentation.
6. a kind of preparation method of sludge soil-repairing agent as claimed in claim 1, it is characterised in that described to dirt of becoming thoroughly decomposed
Bacterial flora in the same direction is accessed in mud is：The first round tunning of 80~100 weight portions, passing through for 60~90 weight portions are pre-processed
Sludge, the bacterial flora in the same direction of 40~50 weight portions stir, sludge scattered after stirring carry out static aerobic culture 3~
5 days, the temperature of fermentation plant was 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 bacterial flora in the same direction is that Lactobacillus plantarum, trichoderma reesei, De Shi lactobacillus lactis, methane is thermophilic micrococcus luteus, thermophilic metal fever are detested
Oxygen bacillus, one or more of Thermoactinomyces albus.
7. a kind of sludge soil-repairing agent, it is characterised in that described sludge soil-repairing agent is appointed by claim 1-6
One prepares.
8. a kind of application of sludge soil-repairing agent, the application refers to that described sludge soil-repairing agent is applied into saline-alkali soil
The in-situ immobilization of earth.
9. a kind of method that sludge is dissolved, methods described is that the sludge soil-repairing agent described in usage right requirement 7 carries out sludge
Dissolve.
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