CN101210182A - Method for producing soil restoring agent by using straw slurry black liquor - Google Patents
Method for producing soil restoring agent by using straw slurry black liquor Download PDFInfo
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Abstract
The invention discloses a preparation method of soil conditioner and a product, which belongs to the field of alkaline straw pulp black liquid treatment. The soil conditioner is prepared from alkaline straw pulp black liquid as the raw material by cooling, biochemical treatment, evaporation and concentration and spraying granulation. The produced soil conditioner contains high-content fulvic acid, and has effects on regulating physical and soil properties, improving soil structure and reducing soil salinity, so that plants can grow normally on saline alkali land, thus improving the output and increasing the benefit. The product is a preferable saline alkali soil conditioner.
Description
Technical field
The present invention relates to the biologic treating technique of alkaline straw-pulp black liquid, mainly is the methods and applications that utilize the microbial treatment alkaline straw-pulp black liquid.
Background technology
In the alkaline process paper-making process, contain poly-pentose, lignin, sulfate soap and alkaloids in the black liquor waste of generation, so waste water is black.CODcr is generally about 18000～22000mg/L, and pH value 11.5～123CODcr surpasses more than 50 times of emission standard, owing to the decolouring difficulty, enter water body and seriously consume dissolved oxygen, is difficult to handle with general method.More than 80% grass fiber in China's paper industry raw material.The CODcr that the straw pulp black digestion liquid is produced accounts for 70% of paper industry, is about more than 90% of the slurrying whole process total amount of pollutant, and promptly the black liquid of straw pulp paper-making contamination level accounts for 29.3% of national water contamination level.
With the alkaline wheat straw pulp is example, generally produces the 1t chemical pulp and needs 22t wheat straw, the NaOH of 300kg.Wherein will there be the 1.5t waste to enter in the black digestion liquid, and contain the inorganics (wherein mainly being NaOH) of the above organism of the 1000kg that has an appointment (lignin accounts for about 34% in the organism), 400～500kg in the 1.5t waste.The about 1300kg/t slurry of the generating capacity of CODcr, the about 350kg/t slurry of the generating capacity of BOD5.
The main component of straw pulp black liquor is alkali lignin (claiming lignin sodium again, is a kind of macromole aromatics) and inorganicss such as part hemicellulose, polyose organism and silicate, H wherein
2S, CH
3SH, CH
3SCH
3Deng for producing malodorous material.Wherein organism contains 69%, and inorganics contains 31%.Promptly by the alkali of biological oxygen demand (BOD) (BOD5) and the alkali of pigment and chemical oxygen demand (CODcr), the oxygen consumption waste water that lignin is formed.
Some areas, because a large amount of discharging black liquor of pulp making makes many rivers be subjected to severe contamination, littoral agriculture production and people ' s health are subjected to serious infringement.It is social question of common concern that therefore careless black liquor of pulp making is handled always, and its Pollution abatement is the task of top priority.A large amount of discharging black liquor of pulp making also make ecotope be subjected to serious infringement.
The external Silvola recovery that adopts is handled pulp black liquor more, but this method investment is big, and complex process equipment only is applicable to large-scale pulping wood papermaking enterprise.And aspect straw pulp black liquor improvement, adopt alkali recovery technology, and require the slurrying scale minimum for producing 1.7 ten thousand tons per year, construction investment is big, the working cost height.And straw pulp black liquor exists and is unfavorable for that the aptitude to burn viscosity is big, and the activation energy of black liquor is very high, black liquor burning-point height, be difficult to burning, thermal value is low, the silicon content height, half fiber and heteroproteose cell are many and be easy to rotten and the generation precipitation, are difficult to apply at medium-sized straw pulp mill.Acidization and ultrafiltration process are adopted in the domestic in recent years processing to medium and small sized enterprises' black liquid more, mainly are to extract the lignin in the black liquor and reduce COD and BOD.But these methods all can not be eliminated the organism in the black liquor fully, and the shipwreck after the processing is to reach discharging standards.Therefore, straw pulp black liquor is administered has become a great problem that the anxious important topic paper-making black liquid to be solved of paper industry is treated as environmental improvement.
Simultaneously, the farmland is subjected to the pollution of three industrial wastes, atmosphere, chemical to be aggravation trend, soil desertification and salinification problem are also quite serious, irrational chemical fertilizer of using, quickened organic consumption, caused the variation of some physical properties of soil such as structural, retentiveness, tilth etc., the long-term application chemical fertilizer can cause that also the variation of pH value causes acidifying or alkalization to a certain extent, especially during continuous administration single variety chemical fertilizer, in a short time this phenomenon can appear.
Therefore, change straw pulp black liquor into soil-repairing agent, can turn waste into wealth, for administering a kind of idealized model of straw pulp black liquor.At present, utilizing black liquor to prepare soil-repairing agent, mainly is to make the black liquor acidifying or add coagulant aids to be settled out xylogen, and xylogen is the branched reticular polymer polymkeric substance of a kind of three-dimensional space band, itself also can be converted into soil ulmin, thereby reaches the purpose of improving the soil.As application number is the Chinese patent of CN01114587, adopts flocculation agent and coagulant aids to separate out xylogen, is used as organic composite fertilizer, soil improvement agent, filler etc.; Application number is the Chinese patent of CN01103928, adopts sulfurous acid acidifying black liquor, and precipitate and separate and drying and dehydrating extract xylogen.
But there is following problem in aforesaid method
1, hyper acid or add extra coagulant aids to need adding, increased cost.
2, the black liquor of handling does not reach discharge index, causes secondary pollution easily.
The present invention has overcome above various shortcoming, reduced the pollution treatment cost, outwards do not discharge black liquor, thoroughly solved the black liquor pollution problem, the soil-repairing agent of producing simultaneously is except having good soil remediation and improving effect, can also use as the agent of checking winds and fixing drifting sand, fertilizer, belong to high-tech product, can produce good economic benefit.
Summary of the invention
The object of the present invention is to provide a kind of soil-repairing agent composition.
Another object of the present invention is to provide a kind of preparation method of said composition.
Another purpose of the present invention is to provide the purposes of a kind of said composition on the preparation soil-repairing agent.
The inventive method is applicable to all alkaline straw-pulp black liquids, is the alkaline straw-pulp black liquid of raw material with non-timber such as straw, wheat straw, reed, giantreed, cotton stalks particularly.
Soil-repairing agent composition provided by the invention, its manufacture method comprises the steps:
(1) with the alkaline straw-pulp black liquid cooling, obtains cooled black liquor;
(2) regulate cooled black liquor pH to pH9.0～10.0 and add 0.1-15 ‰ nutrition source, allow black liquor enter biochemical treatment system then, according to the strain liquid that adds active bacteria in the black liquor of amount in biochemical treatment system of 1/ (35～40) of black liquor volume, under the effect of active bacteria, make black liquor pH drop to 7.5～8.0, obtain black liquor through biochemical treatment;
(3) will concentrate through the black liquor vaporizing of biochemical treatment, obtain the black liquor after the evaporation concentration;
(4) black liquor after the evaporation concentration enters the spray granulating machine and carries out spray granulating, get final product product.
Between step (2) and (3), also comprise the black liquor through biochemical treatment is carried out aeration.
The inventive method key is biochemical treatment system.Biochemical treatment system can be a kind of in the following system: anaerobic pond, anaerobism contact reactor, UASB reactive system, AF system, AFB system, combined and two-phase anaerobic system etc.
Preferred UASB reactive system.This is that processing power is big because the UASB system is a kind of technology of comparative maturity, and treatment effect is good, and investment cost is economized, and also can utilize the returned sluge of its generation to regulate pH in the methods of the invention simultaneously, further reduces cost.
Biochemical treatment system utilizes active bacteria to handle alkaline straw pulp black liquor, active bacteria is the combination of a kind of in Bacillus licheniformis, cured shape genus bacillus and the bacillus pumilus or at least two kinds, the combination of combination, Bacillus licheniformis and the bacillus pumilus of preferred Bacillus licheniformis and cured shape genus bacillus; The most preferably combination of lichens genus bacillus, cured shape genus bacillus and bacillus pumilus;
In addition, active bacteria can also comprise the salt sporangium;
Wherein:
Bacillus licheniformis is AS.1.518, AS1.520, AS1.807, AS1.932, CMCC (B) 63519, IANP806112, IFFI10020, IFFI10094 etc.;
Cured shape genus bacillus is AS1.126, AS 1.173, AS1.230, AS1.1626, CFCC1007, CMCC (B) 63301, IA Bac-1, IFFI 10040
Short and small bud bag bacillus is AS1.594, AS1.894, AS1.937, AS 1.940, AS1.1165, CFCC1016, CMCC (B) 63202, IFFI09003, IFFI10211
Above bacterial classification is disclosed bacterial classification in the prior art.
The salt sporangium is salt Zymomonas mobilis C6, derives from Lab stock.
The preparation process of the strain liquid of above-mentioned active bacteria is: postvaccinal substratum is put into fermentor tank ferment, temperature is controlled at 28～31 ℃, air flow and liquid volume ratio are 0.5～1.0, stirring velocity is 150～250 rev/mins, fermentation time is 24～36 hours, obtain strain liquid, its every milliliter contains 15～2,500,000,000 bacterial classifications; Described substratum is that potato dextrose agar, potato synthetic medium, potato yeast extract medium, wheat bran dextrose culture-medium, compost soak juice dextrose culture-medium, Semen Maydis powder synthetic medium.
Alkaline pulping black liquor is cooled off in the inventive method can be adopted water-cooled or air-cooled mode, regulating cooled black liquor pH can be with sour, also can mix with black liquor, the pH value of black liquor is controlled between 9.5～10 with the returned sluge that biochemical treatment system produces.When adopting acid to regulate, preferred acid be formic acid, acetate, hydrochloric acid or vitriolic one or more; When adopting returned sluge to mix adjusting with black liquor, the weight ratio of returned sluge and black liquor is 5: 1～10: 1, preferred 8: 1～10: 1.Added nutrition source is a kind of in urea, diammonium phosphate or the ground phosphate rock.
In the inventive method will be in the black liquor vaporizing concentration process of biochemical treatment; reaching 60-62% and have good flowability with material concentration is benchmark; black liquor after the evaporation concentration enters the spray granulating machine when carrying out spray granulating; the inlet temperature of spray granulating machine is controlled at 200～260 ℃; preferred 200～220 ℃, the moisture controlled of product is at 5-7%.
Specifically, soil-repairing agent composition provided by the invention, its manufacture method comprises the steps:
1, cooling:
At first take cooling to handle to it before black liquor enters biochemical treatment system, the type of cooling can select water-cooled also can take air-cooled mode, drops to 35-45 ℃ and gets final product so long as finally enter before the next system temperature of black liquor.
This is that from the fresh black liquor of slip house, temperature reaches 85-90 ℃ because this explained hereafter is main raw material with the alkaline straw-pulp black liquid, and under this temperature, microorganism can't survive.
2, biochemical treatment:
The pH regulator of fresh black liquor after the cooling to pH9.0～10.0, is entered biochemical treatment system after adding a small amount of nutrition source simultaneously.Flora produces a large amount of low molecular organic acids class materials such as humic acid to each the organic constituents effect in the black liquor in system, and the residual alkali generation neutralization reaction in these products and the black liquor reduces entire reaction thing pH value significantly.
The several Control condition of reaction is as follows:
1.. the adjusting that enters preceding pH regulator: pH can be with sour, and the returned sluge that also available biochemical treatment system produces mixes with black liquor, and its pH value is controlled between 9.0～10.When adopting acid to regulate, preferred acid be formic acid, acetate, hydrochloric acid or vitriolic one or more; When adopting returned sluge to regulate, require the reflux ratio of returned sluge and fresh black liquor to count 8: 1-10 according to weight: 1, minimumly can not be lower than 5: 1, otherwise the active bacterium in the returned sluge will be killed by the residual alkali in the fresh black liquor.
2.. the add-on of nutrition source: the preferred ground phosphate rock of nutrition source, diammonium phosphate or urea, the normal growth that add-on can satisfy flora gets final product, and add-on is generally the 0.1-15 ‰ of fresh black liquor weight.
3.. system pH value: the effect of active flora can make the pH of system reduce significantly, for this system be not pH fall low more good more, the pH value is crossed and lowly a large amount of lignins to be separated out and is influenced the water-soluble of product, and can make evaporation equipment and spray granulating equipment in the subsequent technique cause heavy corrosion, so when system's pH value dropped to 7.5-8.0, the biochemical treatment process can stop.
4.. waste gas is disposed: the effect of active flora can produce inflammable gass such as a large amount of methane, hydrogen, hydrogen sulfide, as long as system runs well, these gases must in time be drawn; If in the industrial scale I introducing air and point burn, if industrial scale is bigger, be used to after can collecting with air collector to warm oneself or as the fuel of gas fired-boiler.
3, aerating system
The black liquor of finishing anaerobic biological is transported to aerating system, adopts surface aeration machine that the anaerobism black liquor is carried out enhanced aeration, and described aerating system is the aeration tank.The purpose of aerating system is to remove in a large number H
2S and other stench gases, aerating system also can be cancelled in actual production, allows black liquor through biochemical fermentation directly enter evaporation concentration system and carries out evaporation concentration.
4, evaporation concentration
Enter evaporation concentration in the evaporation concentration system through the black liquor behind the biochemical fermentation, reaching 60-62% and have good flowability with material concentration is benchmark.
The evaporation concentration of straw pulp black liquor, the two big difficult points that run into are problems of fouling and high dense mobile difference, adopt the inventive method that fresh black liquor is carried out well having solved this two problems behind the biochemical fermentation, non-scaling not only in the evaporative process, and concentration reaches 60% and still has goodish flowability; Be beneficial to very much the carrying out of follow-up spray granulating, not only prolonged service life of equipment greatly, and reduce the products production cost significantly.
5, spray granulating
Elevated temperature heat material after the evaporation concentration directly enters the spray granulating machine and carries out spray granulating, can produce the qualified product of homogeneous grain diameter.
The process control of spray granulating is as follows:
1.. temperature control: general inlet temperature is controlled at 200-220 ℃, can not surpass 260 ℃, otherwise dieseling can take place and initiation fire; Can not be lower than 200 ℃.Otherwise output is too low, and production cost also can strengthen;
2.. product moisture: generally be controlled at 5-7%;
3.. the packing of product: because this product has certain moisture, so product should adopt the thick plastic bag hermetic package of liner without exception;
Simultaneously, the present invention also provides the manufacture method of above-mentioned soil-repairing agent composition, and is specifically as indicated above.
In addition, the present invention also provides the purposes of above-mentioned composition on the preparation soil-repairing agent.
Adopt in the product of this operational path production and contain a large amount of xanthohumic acids, the content of total xanthohumic acid is up to containing a lot of carboxyls, hydroxyl, amide group isoreactivity group in the 15-20% xanthohumic acid structure.Therefore, it has stronger ion-exchange, complexing, chelating and adsorptive power.Simultaneously it is as a kind of high molecular polymer with colloid chemistry character, in calcareous soil can and Ca
2+, Mg
2+Form cotton-shaped gel Deng complexing of metal ion.In acid soil can with trioxide (Fe
2O
3, Al
2O
3Deng) complexing formation as cotton-shaped gel, these gelatinoids have bonding capacity, the dispersive soil particle cementation is got up, form water stability crumb structure preferably, soil granular is increased, the structure of improving the soil, strengthen soil the fertilizer supply and preservation ability, improve plant recovery of nutrient, improve the surge capability, improvement acid, alkali of soil, saline land.
Adopt the product of this operational path production not only to have good soil remediation and improved function, and be rich in humic acid and N, P, K, Si, various plants nutritive ingredients such as S, Ca because of it, therefore also can be directly as flower fertilizer and the raw material of producing organic-inorganic compound mixed fertilizer, can also use as this product as fertilizer sources of agent of checking winds and fixing drifting sand of desertification treatment, can directly stimulate crop growthing development on the one hand, and supply with the farm crop nutrient; Can effectively prevent soil fixing to other inorganic nutrients on the other hand, improve its utilization ratio, and can make by the inorganic nutrients of soil fixing and discharge again, supply with crop growthing development.
Simultaneously, this technology also has following advantage:
1., what take this explained hereafter is a kind of soil-repairing agent, solution be the pollution problem of black liquid of straw pulp paper-making, meet the circular economy policy of national sustainable development;
2., adopt this explained hereafter product because its raw material is a straw pulp black liquor, so production cost is lower, but belong to high-tech product, and produce market potential is big, so economic benefit is considerable;
3., take this technology to administer the not only disposable input of straw pulp black liquor low (reclaim compare with alkali), and contaminated solution is thorough, suffers from after the non-secondary pollution.
Description of drawings
Fig. 1 is the synoptic diagram of the manufacture method of soil-repairing agent composition of the present invention.
Fig. 2 is the synoptic diagram of manufacture method that utilizes the soil-repairing agent composition of the present invention of UASB
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is made more detailed description, but the present invention is not limited by these embodiment.Bacterial classification among the embodiment derives from Institute of Micro-biology of the Chinese Academy of Sciences, Inst., of Food Fermentation Industry, Ministry of Light Industry (IFFI), medical microbial culture presevation administrative center (CMCC), forestry microbial strains preservation administrative center (CFCC) or Chinese Academy of Medical Sciences institute of antibiotics (IA).
Embodiment 1
Potato dextrose agar behind the inoculation Bacillus licheniformis AS.1.518 is put into fermentor tank ferment, temperature is controlled at 28 ℃, and air flow and liquid volume ratio are 0.5, stirring velocity is 150 rev/mins, fermentation time is 24 hours, obtains strain liquid, and its every milliliter contains 1,500,000,000 bacterial classifications.
The wheat straw alkaline pulping black liquor is respectively 5m at the length and width height; 5m; be cooled to 40 ℃ in the cooling pool of 3m; making returned sluge and fresh black liquor is 8: 1 mixed with weight ratio; mixing back black liquor pH is 9.6; add 0.1 ‰ diammonium phosphate simultaneously; feeding Shandong, Jinan hair ring protects in the UASB-100 reactor of Science and Technology Ltd.'s manufacturing; the strain liquid that adds the Bacillus licheniformis AS.1.518 of black liquor volume 1/35 in the UASB reactor; when the pH of system drops to 8.0; the black liquor of finishing biochemical treatment flows into six efficient tubular falling-film evaporators and carries out evaporation concentration; reach 62% and to have good flowability be benchmark with material concentration; elevated temperature heat material after the evaporation concentration enters the spray granulating machine; the inlet temperature of spray granulating machine is controlled at 260 ℃; get the product of water content 63% behind the spray granulating, be numbered X-1.
Embodiment 2
Potato synthetic medium behind inoculation Bacillus licheniformis AS1.932, AS.1.518 and the cured shape genus bacillus CFCC1007 is put into fermentor tank to ferment, temperature is controlled at 31 ℃, air flow and liquid volume ratio are 1.0, stirring velocity is 250 rev/mins, fermentation time is 36 hours, obtain strain liquid, its every milliliter contains 2,500,000,000 bacterial classifications.
The giantreed alkaline pulping black liquor is respectively 5m at the length and width height; 5m; be cooled to 38 ℃ in the cooling pool of 3m; making returned sluge and fresh black liquor is 10: 1 mixed with weight ratio; mixing back black liquor pH is 100; add 15 ‰ urea simultaneously; feeding Shandong, Jinan hair ring protects in the UASB-100UASB reactor of Science and Technology Ltd.'s manufacturing; the Bacillus licheniformis AS 1.932 that adds black liquor volume 1/40 in the UASB reactor; the strain liquid of AS.1.518 and cured shape genus bacillus CFCC1007; when the pH of system drops to 7.5; the black liquor of finishing biochemical treatment at first flows into the high 5m of being of length and width; 5m; the aeration tank of 3m; flow into six efficient tubular falling-film evaporators behind the aeration and carry out evaporation concentration; reach 60 and to have good flowability be benchmark with material concentration; elevated temperature heat material after the evaporation concentration enters the spray granulating machine; the inlet temperature of spray granulating machine is controlled at 200 ℃; behind the spray granulating moisture 5% product, be numbered X-2.
Embodiment 3
Potato yeast extract medium behind inoculation Bacillus licheniformis IFFI10020 and the bacillus pumilus AS1.594 is put into fermentor tank to ferment, temperature is controlled at 30 ℃, air flow and liquid volume ratio are 0.8, stirring velocity is 200 rev/mins, fermentation time is 32 hours, obtain strain liquid, its every milliliter contains 22.5 hundred million bacterial classifications.
The cotton stalk alkaline pulping black liquor is respectively 5m at the length and width height; 5m; after being cooled to 39 ℃ in the cooling pool of 3m; making returned sluge and fresh black liquor is 5: 1 mixed with weight ratio; mixing back black liquor pH is 9.0; add 10 ‰ ground phosphate rock simultaneously; feeding Shandong, Jinan hair ring protects in the UASB-100UASB producer of Science and Technology Ltd.'s manufacturing; add the Bacillus licheniformis IFFI10020 of black liquor volume 1/38 and the strain liquid of bacillus pumilus AS1.594 in the UASB reactor; when the pH of system drops to 7.7; the black liquor of finishing biochemical treatment at first flows into the high 5m of being of length and width; 55m; the aeration tank of 3m; flow into six efficient tubular falling-film evaporators behind the aeration and carry out evaporation concentration; reach 61% and to have good flowability be benchmark with material concentration; elevated temperature heat material after the evaporation concentration enters the spray granulating machine; the inlet temperature of spray granulating machine is controlled at 220 ℃; get the product of water content 7% behind the spray granulating, be numbered X-3.
Embodiment 4
Wheat bran dextrose culture-medium behind inoculation Bacillus licheniformis IANP806112, cured shape genus bacillus AS1.126 and bacillus pumilus CFCC1016, the AS1.594 is put into fermentor tank to ferment, temperature is controlled at 29 ℃, air flow and liquid volume ratio are 0.7, stirring velocity is 180 rev/mins, fermentation time is 30 hours, obtain strain liquid, its every milliliter contains 2,100,000,000 bacterial classifications.
The straw alkaline pulping black liquor is respectively 5m at the length and width height; 5m; after being cooled to 39 ℃ in the cooling pool of 3m; regulate pH to 9.3 with formic acid; add 7.5 ‰ diammonium phosphate then; enter anaerobic pond; the Bacillus licheniformis IANP806112 that adds black liquor volume 1/37 in the anaerobic pond; cured shape genus bacillus AS1.126 and bacillus pumilus CFCC1016; the strain liquid of AS1.594; when the pH of black liquor in the anaerobic pond drops to 78; the black liquor of finishing biochemical reaction at first flows into the high 5m of being of length and width; 5m; the aeration tank of 3m; flow into six efficient tubular falling-film evaporators behind the aeration and carry out evaporation concentration; reach 62% and to have good flowability be benchmark with material concentration; elevated temperature heat material after the evaporation concentration enters the spray granulating machine; the inlet temperature of spray granulating machine is controlled at 210 ℃; get the product of water content 522% behind the spray granulating, be numbered X-4.
Embodiment 5
To inoculate compost behind Bacillus licheniformis AS1.807, cured shape genus bacillus AS1.173, bacillus pumilus CMCC (B) 63202 and the salt sporangium C6 soaks the juice dextrose culture-medium and puts into the fermentor tank fermentation, temperature is controlled at 28 ℃, air flow and liquid volume ratio are 0.6, stirring velocity is 170 rev/mins, fermentation time is 28 hours, obtain strain liquid, its every milliliter contains 2,200,000,000 bacterial classifications.
The reed alkaline pulping black liquor is respectively 5m at the length and width height; 5m; after being cooled to 38.5 ℃ in the cooling pool of 3m; regulate pH to 9.4 with sulfuric acid and hydrochloric acid; add 5 ‰ diammonium phosphate then; enter the AF reactor; the Bacillus licheniformis AS1.807 that adds black liquor volume 1/36 in the AF reactor; cured shape genus bacillus AS1.173; the strain liquid of bacillus pumilus CMCC (B) 63202 and salt sporangium C6; when the pH of black liquor in the AF reactor drops to 79; the black liquor of finishing biochemical reaction at first flows into 5m; 5m; the aeration tank of 3m; flow into six efficient tubular falling-film evaporators behind the aeration and carry out evaporation concentration; reach 62% and to have good flowability be benchmark with material concentration; elevated temperature heat material after the evaporation concentration enters the spray granulating machine; the inlet temperature of spray granulating machine is controlled at 210 ℃; get the product of water content 6.01% behind the spray granulating, be numbered X-5.
Embodiment 6-10
As show shown in 1-1 and the table 1-2:
The preparation of table 1-1 embodiment 6-10 strain liquid
| Embodiment 6 | Embodiment 7 | Embodiment 8 | Embodiment 9 | Embodiment 10 | |
| The inoculation bacterial classification | Cured shape genus bacillus AS1.1626 | Cured shape genus bacillus IA Bac-1 and bacillus pumilus IFFI10211 | Cured shape genus bacillus CMCC (B) 63301 and salt sporangium C6 | Bacillus licheniformis AS1.807, bacillus pumilus AS1.594 and salt sporangium C6 | Bacillus licheniformis IFFI10094, cured shape genus bacillus AS1.230 and bacillus pumilus |
| Substratum | The potato synthetic medium | The potato yeast extract medium | The Semen Maydis powder synthetic medium | The wheat bran dextrose culture-medium | Potato dextrose agar |
| Fermentation jar temperature (℃) | 28 | 29 | 31 | 30 | 28 |
| Air flow and liquid volume ratio | 0.6 | 0.5 | 0.8 | 0.9 | 1.0 |
| Stirring velocity (rev/min) | 160 | 180 | 150 | 200 | 230 |
| Fermentation time | 36 | 33 | 30 | 28 | 25 |
| Bacterial classification content (hundred million/milliliter) | 24 | 22 | 23 | 20 | 18 |
Table 1-2 embodiment 6-10 soil-repairing agent product preparation
| Embodiment 6 | Embodiment 7 | Embodiment 8 | Embodiment 9 | Embodiment 10 | |
| The black liquor raw material | Wheat straw | Reed | Kaoliang stalk | Corn stalk | Cotton stalk |
| Cooling back black liquor pH regulator mode | Returned sluge: black liquor=9: 1, regulate back black liquor pH9.7 | Be adjusted to 9.7 with formic acid+acetate | Be adjusted to 9.9 with hydrochloric acid | Regulate pH to 10.0 with sulfuric acid | Be adjusted to 9.8 with acetate |
| Biochemical treatment system | The anaerobism contact reactor | The AF reactor | The AFB reactor | Combined and two-phase anaerobic reactor | The IC anaerobic reactor |
| Strain liquid and black liquor ratio | 1/36 | 1/40 | 1/37 | 1/35 | 1/39 |
| Black liquor pH when biochemical treatment is finished | 7.8 | 7.9 | 7.5 | 7.8 | 8.0 |
| Spray granulating machine inlet temperature | 200 | 210 | 220 | 230 | 250 |
| The product water content | 6.12％ | 5.87％ | 6.93％ | 5.89％ | 513％ |
Experimental example 1
This experimental example is the composition and the content analysis of embodiment 1-5 product, the results are shown in Table 2
The analysis of table 2 product composition
Experimental example 2
Experiment soil is red earth, organic content is 0.62%, pH value 4.98, it is divided into 5 groups, in soil, add soil-repairing agent X-1, X-2, X-3, X-4 respectively, consumption 50kg/ mu, remaining one group as blank CK, surveys soil specific surface area, the soil quantity of electric charge, soil cation exchange capacity and soil pH of each group then respectively.
Experimental result is as shown in table 3:
Table 3 soil-repairing agent is to the influence of soil property
Soil specific surface area is one of key property of soil colloid.The surface type of soil colloid can be divided into internal surface and outside surface.Different components, dissimilar surfaces are not Individual existences in soil, but the staggered weave in that mixes, interacts.Soil specific surface area increases, and illustrates that the reactive behavior of soil increases.
Soil with electric charge mainly concentrate on the colloid part of soil.Soil surface charged kind, quantity and electric density influence the interaction of soil and soil solution intermediate ion, thereby influence the character of soil.
The soil cation exchange capacity also is very important chemical property of soil, and it has directly reflected guarantor's fertilizer, nutrient supplying capability energy and the buffering ability of soil.Because soil is to be caused by the coulomb electrostatic force between soil surface negative charge and positively charged ion to cationic absorption, soil with the quantity of electric charge big more, the positively charged ion of absorption is many more, the cation exchange capacity of soil is big more, thereby the activity of soil is also just big more.
PH is 4.98 for the examination soil sample, belongs to strongly acidic soil, is unfavorable for plant-growth.Applied the soil-repairing agent of the present invention's preparation in soil after, the acidity of soil weakens, and the pH of soil improves.
As seen the soil-repairing agent of the present invention's preparation has the excellent repairing improved effect to soil.
Experimental example 3
Experiment applies soil improvement agent X-1 with the soil saline-alkali wasteland of attaching most importance to, consumption 60kg/ mu, the various ion contents such as the table 4 of upper soll layer before and after the experiment
The ion content of table 4 upper soll layer (g/kg of unit)
As seen, the soil-repairing agent of the present invention's preparation has tangible desalting effect on the saltings, ratio of desalinization reaches 73.50%, still obviously minimizing of sodium ion absorption ratio in the soil simultaneously, handle back soil sodium ion absorption than having reduced 60.72%, sodium ion adsorbs than being one of index that shows the alkalization of soils degree.Add pH in soil and significantly reduce, so the soil-repairing agent of the present invention's preparation has tangible improving effect to the saltings.
Experimental example 4
Experiment is cement type saltings with the soil, and fertility is even, prepartion of land, pH745.
The experimental water rice is that the Liao Dynasty is excellent 14, and planting density is 30.0cm * 14.0cm.
Practice ground is divided into 2 groups, every group of 50m
2, one group applies soil improvement agent X-2, and contrast is not executed in one group of conduct of consumption 45kg/ mu.
Through test, the soil pH that applies soil improvement agent drops to 6.83 from 7.45.
Every index to paddy rice influences as table 5
Every index of table 5 paddy rice
Increasing production of rice 77kg, stimulation ratio is 15.68%
As seen the soil-repairing agent of the present invention's preparation has the physics and chemistry of adjusting soil voltinism shape, improves Soil structure, reduces soil salt.Making plant normal growth on the saltings, improve output, increase benefit, is a kind of saline-alkali soil conditioner preferably.
Claims (10)
1. a soil-repairing agent composition is characterized in that, is prepared by following method:
(1) alkaline straw-pulp black liquid is cooled off, obtain cooled black liquor;
(2) regulate cooled black liquor pH to pH9.0～10.0 and add black liquor weight 0.1-15 ‰ nutrition source, enter biochemical treatment system then and carry out biochemical treatment, according to the strain liquid that adds active bacteria in the black liquor of amount in biochemical treatment system of 1/ (35～40) of black liquor volume, under the effect of active bacteria, make black liquor pH drop to 7.5～8.0, obtain black liquor through biochemical treatment; Wherein said nutrition source is a kind of in urea, diammonium phosphate or the ground phosphate rock, described biochemical treatment system is a kind of in anaerobism contact reacts system, UASB reactive system, AF system, AFB system, combined and two-phase anaerobic system or the IC anaerobic reaction system, and described active bacteria is a kind of of Bacillus licheniformis, cured shape genus bacillus and bacillus pumilus or at least two kinds;
(3) will concentrate the black liquor that obtains after evaporation concentration through the black liquor vaporizing after the biochemical treatment;
(4) black liquor after the evaporation concentration enters the spray granulating machine and carries out spray granulating, described composition.
2. the described preparation of compositions method of claim 1 is characterized in that described method comprises:
(1) black liquor is cooled off, obtain cooled black liquor;
(2) regulate cooled black liquor pH to pH9.0～10.0 and add black liquor weight 0.1-15 ‰ nutrition source, enter biochemical treatment system then and carry out biochemical treatment, according to the strain liquid that adds active bacteria in the black liquor of amount in biochemical treatment system of 1/ (35～40) of black liquor volume, under the effect of active bacteria, make black liquor pH drop to 7.5～8.0, obtain black liquor through biochemical treatment; Wherein said nutrition source is a kind of in urea, diammonium phosphate or the ground phosphate rock, described biochemical treatment system is a kind of in anaerobism contact reacts system, UASB reactive system, AF system, AFB system, combined and two-phase anaerobic system or the IC anaerobic reaction system, and described active bacteria is a kind of of Bacillus licheniformis, cured shape genus bacillus and bacillus pumilus or at least two kinds;
(3) will concentrate the black liquor that obtains after evaporation concentration through the black liquor vaporizing after the biochemical treatment;
(4) black liquor after the evaporation concentration enters the spray granulating machine and carries out spray granulating, described composition.
3. preparation method according to claim 1 and 2 is characterized in that, also comprises between described step (2) and (3) black liquor after the biochemical treatment is carried out aeration.
4. according to claim 1 or 2 or 3 any one described preparation method, it is characterized in that described active bacteria also comprises the salt sporangium, described salt sporangium is salt sporangium C6.
5. according to claim 1 or 2 or 3 any one described preparation method, it is characterized in that described Bacillus licheniformis is one or more among AS.1.518, AS1.520, AS1.807, AS1.932, CMCC (B) 63519, IANP806112, IFFI10020, the IFFI10094; Among genus bacillus AS1.126, AS1.173, AS1.230, AS1.1626, CFCC1007, CMCC (B) 63301, IA Bac-1, the IFFI 10040 one or more; Described bacillus pumilus is one or more among AS1.594, AS1.894, AS1.937, AS1.940, AS1.1165, CFCC1016, CMCC (B) 63202, IFFI09003, the IFFI10211.
6. according to claim 1 or 2 or 3 any one described preparation method, it is characterized in that, described biochemical treatment system is the UASB reactive system, described alkaline straw-pulp black liquid is for being the alkaline straw-pulp black liquid of raw material with straw, wheat straw, reed, giantreed, cotton stalk, described that black liquor vaporizing after biochemical treatment is concentrated, reaching 60-62% and have good flowability with material concentration in the black liquor is benchmark; The inlet temperature of described spray granulating machine is controlled at 200-260 ℃, and preferred 200-220 ℃, the moisture controlled of described composition is at 5-7%.
7. according to claim 1 or 2 or 3 any one described preparation method, it is characterized in that, the preparation process of the strain liquid of described active bacteria is: postvaccinal substratum is put into fermentor tank ferment, temperature is controlled at 28～31 ℃, air flow and liquid volume ratio are 0.5～1.0, and stirring velocity is 150～250 rev/mins, and fermentation time is 24～36 hours, obtain strain liquid, its every milliliter contains 15～2,500,000,000 bacterial classifications; Described substratum is that potato dextrose agar, potato synthetic medium, potato yeast extract medium, wheat bran dextrose culture-medium, compost soak juice dextrose culture-medium, Semen Maydis powder synthetic medium.
8. according to claim 1 or 2 or 3 any one described preparation method, it is characterized in that described adjusting black liquor pH adopts the method that adds acid, preferable formic acid, acetate, hydrochloric acid or vitriolic one or more.
9. according to claim 1 or 2 or 3 any one described preparation method, it is characterized in that, described adjusting black liquor pH adopts the returned sluge blended method with black liquor and biochemical treatment system generation, and the weight ratio of returned sluge and black liquor is 5: 1-10: 1, preferred 8: 1-10: 1.
10. the described composition of claim 1-9 is in the purposes for preparing on the soil-repairing agent.
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| CN200610161793A CN101210182B (en) | 2006-12-25 | 2006-12-25 | Method for producing soil restoring agent by using straw slurry black liquor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103964928A (en) * | 2014-05-19 | 2014-08-06 | 河北省微生物研究所 | Preparation method of microorganism soil restoration agent |
| CN105009727A (en) * | 2015-07-09 | 2015-11-04 | 潍坊友容实业有限公司 | Saline land soil structure conditioning method employing rose quartz soil subsoiling agent |
| CN113337288A (en) * | 2021-06-15 | 2021-09-03 | 内蒙古自治区林业科学研究院 | Preparation and application method of plant-based sand fixing agent |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1436895A (en) * | 2002-02-09 | 2003-08-20 | 吴晓丽 | Comprehensive utilization method of pulping potash black liquor in paper-making process |
| CN1537830A (en) * | 2003-04-19 | 2004-10-20 | 顾小平 | Method of producing fertilizer from black liquid generated during paper making by potassium hydroxide alkali method |
| CN1563342A (en) * | 2004-02-10 | 2005-01-12 | 凌亮 | Microbe preparation in use for treating high difficult wastewater and preparation method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103964928A (en) * | 2014-05-19 | 2014-08-06 | 河北省微生物研究所 | Preparation method of microorganism soil restoration agent |
| CN103964928B (en) * | 2014-05-19 | 2015-11-18 | 河北省微生物研究所 | The preparation method of microbe soil restoration agent |
| CN105009727A (en) * | 2015-07-09 | 2015-11-04 | 潍坊友容实业有限公司 | Saline land soil structure conditioning method employing rose quartz soil subsoiling agent |
| CN113337288A (en) * | 2021-06-15 | 2021-09-03 | 内蒙古自治区林业科学研究院 | Preparation and application method of plant-based sand fixing agent |
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