CN107434751A - A kind of method that biological organic carbon fertilizer is produced using black liquor of pulp making - Google Patents
A kind of method that biological organic carbon fertilizer is produced using black liquor of pulp making Download PDFInfo
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- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/20—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation using specific microorganisms or substances, e.g. enzymes, for activating or stimulating the treatment
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- C05F17/40—Treatment of liquids or slurries
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- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
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- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
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- C05F5/00—Fertilisers from distillery wastes, molasses, vinasses, sugar plant or similar wastes or residues, e.g. from waste originating from industrial processing of raw material of agricultural origin or derived products thereof
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- 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
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- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
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Abstract
A kind of method that biological organic carbon fertilizer is produced using black liquor of pulp making, is comprised the following steps：Black liquor of pulp making is adjusted into pH to neutral or alkalescent, Air Exposure is carried out after adding modified microbe bacterium solution thereto；Black liquor of pulp making after the processing of gained bio-modification is processed into mud cake of the water content below 60%；Gained mud cake is added after auxiliary material fermentation compound is made, added fermenting agent thereto and build fermentation heap, then carry out aerobic fermentation, amphimicrobian fermentation successively；Utilize obtained fermentation material production biological organic carbon fertilizer after amphimicrobian fermentation ends.The present invention uses paper mill sludge biologic modified method, organic matter and nutrient decline caused by solving the problems, such as a large amount of inorganic matters of chemic modified method addition, simplify operating process, reduce processing cost, it is convenient that fertilizer application is made, fertilizer efficiency is high, and function bacterium reasonable mixture ratio is good to protection effects such as droop, epidemic disease, rotten mildew, nematodiasis.
Description
Technical field
The invention belongs to organic carbon fertilizer technology field, and in particular to a kind of to produce biological organic carbon fertilizer using black liquor of pulp making
Method, more particularly to black liquor of pulp making carry out mixed fermentation after dewater treatment with auxiliary material, and add beneficial microbe manufacture biology
The method of organic carbon fertilizer.
Background technology
The raw materials such as the timber of paper making raw material, stalk, containing cellulose, lignin and hemicellulose (glycan class) three
Point, papermaking wherein accounts for 25% lignin and accounts for 28% hemicellulose merely with cellulose therein (accounting for 40%)
The thing such as element and xylose, potassium, nitrogen, phosphorus is then stayed in black liquor of pulp making.
The black liquor of pulp making content of organic matter is high, and hydrophily is strong, is not easy direct mechanical dehydration.Black liquor of pulp making generally use at present
Processing method, the processing method as disclosed in CN 105016571A, CN 103159372A, CN 102953286A etc., but
Chemical treatment method is not easy to its recycling.It is still very high using PAM flocculence dehydrated sludge moisture content in addition
(80%-85%), to follow-up disposal or using extreme difficulty is added, as compost is extremely inconvenient, it is necessary to which substantial amounts of auxiliary material, there is evil
It is smelly, take up an area big；Anhydration and incineration cost height etc..To reduce moisture percentage in sewage sludge, it is necessary to strengthen the dewatering of sludge, need to add a large amount of
Lime-ferric trichloride carries out sludge modification, and this method can make dehydrated sludge moisture content to be reduced to 60% or so, but this method
A large amount of inorganic substances can be introduced, add sludge amount of dry matter, reduce sludge organic matter and calorific value, have impact on the follow-up of sludge
Recycling.
When carrying out compost utilization to dewatered sludge, according to 80%-85% sludge, then need to add sludge weight 1-2
Auxiliary material again is so that fermentate moisture is very high in zone of reasonableness, fermentation raw material cost；According to the dirt of moisture content 60% or so
Mud, because adding substantial amounts of sludge modification material before dehydration, the content of organic matter in sludge is reduced, tunning is difficult to reach
The quality requirement of organic fertilizer., it is necessary to which continuous turning, in favor of supplying oxygen and radiating, and fermented in Traditional compost fermentation process
Cheng Yizhi maintains aerobic fermentation, and fermentation time length, organic matter and nutrient loss are big.Traditional biological organic fertilizer is to utilize to ferment
Raw material be combined with strains such as bacillus subtilises.
Compost fermentation technology organic matter and nutrient loss are big, and fertilizer efficiency is low.Carried out using traditional complete aerobic fermentation technology
During fermentation, the organic substance in raw material is largely converted into macromolecular humus, and partial organic substances are finally broken down into dioxy
Change carbon loss to lose.Although humus material can be as the source of nutrition of plant, because its decomposition is slow, so fertilizer efficiency is low, rises
Effect is slow.
Instantly in agricultural production, a large amount of due to chemical fertilizer use the problems such as being planted with continuous cropping, cause soil-borne disease
Evil is serious, influences yield and income.Although traditional biological organic fertilizer is containing microorganism caused by fermenting raw materials and adds withered
The strains such as careless bacillus, there is certain soil micro-ecosystem that recovers and balance, but it is limited to the disease resistance effect of crop.
The content of the invention
Therefore, it is an object of the invention to provide a kind of method that biological organic carbon fertilizer is produced using black liquor of pulp making.This hair
It is bright to use paper mill sludge biologic modified method, solve organic matter caused by chemic modified method adds a large amount of inorganic matters and nutrient declines
The problem of, operating process is simplified, reduces processing cost, gained dewatered sludge is convenient for following resourceization utilization.
For the above-mentioned purpose, the present invention adopts the following technical scheme that：
A kind of method that biological organic carbon fertilizer is produced using black liquor of pulp making, is comprised the following steps：
(1) black liquor of pulp making is adjusted into pH to neutral or alkalescent, be aerated after adding modified microbe bacterium solution thereto
Processing；
(2) black liquor of pulp making after bio-modification processing obtained by step (1) is processed into mud cake of the water content below 60%；
(3) mud cake obtained by step (2) is added after auxiliary material and fermentation compound is made, added fermenting agent thereto and build fermentation
Heap, aerobic fermentation, amphimicrobian fermentation are then carried out successively；
(4) obtained fermentation material production biological organic carbon is fertile after utilizing step (3) amphimicrobian fermentation ends.
Polluted in black liquor of pulp making containing abundant lignin, hemicellulose and inorganic nutrients etc., antibiotic-free and pathogenic bacteria,
It is excellent composting material；Compost fermentation is carried out by adding other auxiliary materials, can both mitigate what paper mill sludge landfill etc. was brought
Environmental pressure, it can turn waste into wealth again, improved soil.Using the first aerobic fermentation fermentation technique that amphimicrobian ferments again, both may be used
Make fermentation raw material fully decomposed, the loss of organic matter and nutrient in fermentation process can be reduced again, improve soluble in tunning
The content of small molecule organic carbon, so as to improve fertilizer efficiency, solves traditional aerobic fermentation organic matter and nutrient loss height, fertilizer efficiency is low to ask
Topic.
The fertility of organic fertilizer and its effective carbon rate correlation.It is common organic made from traditional aerobic high-heat fermentation
Fertile effectively carbon rate is about 1% or so.And use the organic carbon fertilizer of the first aerobic fermentation fermentation technique production that amphimicrobian ferments again
Effective carbon rate is 4-6 times of the effective carbon rate of common organic fertilizer between 4%-6%.Small molecule organic carbon in organic carbon fertilizer
Compound is water-soluble, can be quick to supplement carbon demand in crop body by site absorptions such as crop root and blades；In organic carbon fertilizer
Macromolecular Humus organic matter decomposition is slow, long action time, therefore the existing quick-acting of organic carbon fertilizer has long-term effect again, than common
Organic fertilizer is rapid-action, and fertilizer efficiency is high.The small molecule carbon compound in organic carbon fertilizer also has weight in terms of crop anti-adversity is improved simultaneously
Act on.
Preferably, black liquor of pulp making is adjusted into pH to 7.0-8.0 in step (1), to avoid alkalescence is too high from causing microorganism
It is dead.
Preferably, pH is adjusted using sulfuric acid.Black liquor of pulp making first adjusts acid-base value with sulfuric acid, is carried for the growth and breeding of microorganism
For good condition.
Preferably, modified microbe mainly includes thiobacillus ferrooxidans and lignin fungi.
To reduce the processing cost of black liquor of pulp making, it is easy to the following resourceization of dewatered sludge to utilize, the present invention is changed with biology
Property method substitute chemical method carry out paper mill sludge modification, using extraordinary microorganism (thiobacillus ferrooxidans and lignin fungi) to slurrying
Black liquor is modified processing and deeply dehydrating sludge can be achieved (dehydrated sludge moisture content is less than 60%).Biologic modified method only need to
Modified microbe and a small amount of nutriment are added in black liquor, without adding other materials.After microbiological treatment in sludge
Organic matter and calorific value etc. do not lose substantially.Obtained sludge cake after bio-modification is handled and is dehydrated is easy to compost.
Chemical modification can be substituted by being handled using bio-modification, without adding the inorganic matter such as lime and ferric trichloride, sludge
Dehydrating effect is suitable with chemic modified method, but sludge quantity compared with chemical method reduce more than 30%, and in dewatered sludge organic matter and
Nutrient loss is less.
Preferably, modified microbe bacterium solution preparation method is as follows：By thiobacillus ferrooxidans and lignin fungi respectively at it
Culture to thalline quantity is 10 in culture medium9Individual/more than ml, then by thiobacillus ferrooxidans' nutrient solution and lignin fungi culture
Liquid is well mixed to be made modified microbe bacterium solution.
Preferably, the volume ratio of thiobacillus ferrooxidans' nutrient solution and lignin fungi nutrient solution is 2-5:1, black liquor microorganism
It is modified based on thiobacillus ferrooxidans, plays a part of to reduce black liquor EPS and reduce pH；Lignin fungi is mainly carried out to lignin
Initial breakdown, and black liquor small molecular organic matter is decomposed, the combination water of small organic molecule is reduced, microorganism will ensure when being modified
The superiority of acidophilic thiobacillus, this ratio can take into account above-mentioned effect, preferably 3.5:1.
Preferably, modified microbe bacterium solution and the volume ratio of black liquor of pulp making are 1:5-15, modified microbe bacterium solution addition
For black liquor of pulp making volume 1/5-1/15 when, black liquor modified time and cost are can be controlled in the rational scope of comparison；Addition
During less than 1/15, micro organism quantity is few, modification time length；When addition is more than 1/5, although can be increased with faster processing time
Adding the culture amount of modified microbe, cost increases, and preferably 1:10.
Preferably, the solid content of black liquor of pulp making is 1-5%, preferably 2%.
Black liquor of pulp making solid content is adjusted to 1-5%, especially 2% or so, adds black liquor 1/5-1/15, especially 1/10
The modified microbe bacterium solution of volume is handled, and black liquor resistivity is reduced by up to, and dewater treatment effect is best.
Preferably, the temperature of Air Exposure is 25 DEG C -35 DEG C, and the time of Air Exposure is 6-12h.The growth of microorganism is numerous
Growing needs suitable temperature conditionss, and for temperature below 25 DEG C, microbial metabolism is slow, and metabolite is few, when bio-modification is handled
Between it is long；Temperature is higher than 35 DEG C, and suppression is produced to the growth and breeding of microorganism, even results in microorganism death, therefore present invention choosing
The temperature for selecting processing is 25 DEG C -35 DEG C.
The operation of step (1) can be carried out in bio-modification pond.
Preferably, processing described in step (2) is press filtration, preferably plate and frame type filter-press press filtration.
Preferably, feed time during press filtration is 1.5-3.0h, feed pressure 0.6-0.8MPa, dwell time 1.0-
2.0h, diaphragm pressing pressure are 1.2~1.6MPa.
The pH of mud cake obtained by step (2) is preferably 4.0-5.5, and nutrient is preferably >=6.0%, and organic matter is preferably >=
60%.
Preferably, in step (3) auxiliary material be wheat bran, dregs of beans, powder of straw, rice husk, furfural dregs, a kind or 2 in manioc waste
The combination of the kind above.
Preferably, fermenting agent is organic matter decomposing inoculant.
Preferably, the amount of auxiliary material is the 10%-35% of mud cake weight.
Preferably, the amount of fermenting agent is the 0.02-0.1% of mud cake and auxiliary material gross weight, preferably 0.05%.
Preferably, ferment compound moisture control in 50%-55%.
The preferred embodiment for building heap is：Auxiliary material is added into mud cake in mud cake weight 10%-35% ratio, ferment compound
Moisture control in 50%-55%, gross weight 0.02-0.1% fermenting agent is added in above-mentioned material, builds fermentation heap, such as
1.0-1.2 the fermentation heap of rice.
Preferably, the process of aerobic fermentation is as follows：Build after heap material to be carried out turn over throwing for the first time and mix material, and by mud
Cake is smashed, and can be raised to by building 2-3 days heap temperature after heap by more than 60 DEG C, heap temperature rise to 60 DEG C of 24-72h maintained above, after preferably 48h,
Turned over throwing for the second time again, make fermenting raw materials uniform, third time is carried out after 24-72h, preferably 48h and turns over throwing, continues to ferment
24-72h, preferably 48h.
Preferably, throwing is turned over to carry out using turner.
Preferably, the process of amphimicrobian fermentation is as follows：After aerobic fermentation terminates, by the high 3.0-4.0m of fermentation material heap, lid
Covering, as straw screen or mat moisturizing is breathed freely, do not have to turning after building high heap, it is on-demand after being kept for 25-35 days.
Mud cake adds auxiliary material and leavening after dehydration, turns over throwing uniformly with turner, direct fermentation.Mud cake can during turning over throwing
It is broken, remove the crushing process of wet cake from.Whole fermentation process turns over throwing 3 times altogether, after fermentation ends below 4.75mm particles and
Powder accounts for 95%.Traditional whole fermentation period of aerobic fermentation will turn over throwing more than 15 times, therefore the fermentation of aerobic and amphimicrobian combines
Fermentation method can greatly reduce fermentation costs.
It is 6 days that the aerobic fermentation stage, which maintains 60 DEG C of high temperature above times, and the most organic in the stage raw material turns
Chemical conversion macromolecular mesostate, small molecule carbohydrate, protein, lipid etc. is substantially completely decomposed, and the stage produces a small amount of
Carbon dioxide, the organic matter in fermentation raw material is caused to reduce.Amphimicrobian fermentation stage, oxygen supply deficiency, macromolecular
Mesostate continues to decompose under amphimicrobian fermentation condition by microorganism, and a part is converted into small point of below 1000nm
Sub- Organic Compounds.These small molecule organic carbon granular sizes are soluble in water between tens to one thousand nanometer, can be by crop
Root system directly absorbs.
The organic matters such as lignin, hemicellulose in amphimicrobian fermentation stage black liquor of pulp making are in oxygen-deficient situation
Under, small molecule organic carbon is partially converted into, rather than exhaustive oxidation is decomposed into carbon dioxide loss and fallen, therefore aerobic fermentation and simultaneous
Property the fermentation method organic matter loss that is combined of anaerobic fermentation to be less than the complete aerobic fermentation of tradition, it is and solvable in tunning
Property small molecule content is higher than traditional aerobic fermentation product more than 4 times.
The aerobic fermentation stage only needs 6-12 days, and fermentation material is transferred to laydown area after the completion of aerobic fermentation, and aerobic fermentation area can
Next batch aerobic fermentation, rate of materials turnover fast 2 times or so of aerobic fermentation more complete than tradition are carried out with feeding.Amphimicrobian ferments
Stage heap height than aerobic stage can high 2-3 rice, raw material floor space is small, save space.
Preferably, obtained fermentation material production biological organic carbon fertilizer after amphimicrobian fermentation ends is utilized in step (4)
Process it is as follows：First the material in high heap is spread out, carries out reducing temperature and humidity, when humidity of materials is dropped to below 30%, is added withered
It careless bacillus, Trichoderma and Paecilomyces lilacinus, can be packed after fermentation material is stirred with microbial inoculum, produce powdery
Biological organic carbon fertilizer.
Traditional biological organic fertilizer will also add the micro- life of other functions in addition to the microorganism that humus organic material material contains in itself
Thing, these microorganisms are with the bacillus subtilis with biological and ecological methods to prevent plant disease, pests, and erosion function and the bacillus megaterium of dissolving phosphor and dissolving potassium, gel-shaped brood cell
Based on bacillus, strain is single, and Biological control function is limited.It is special to improve the disease-controlling effect of microorganism in biological organic fertilizer
Be not to soil-borne diseases such as droop, epidemic disease, rotten mildew and soil line parasitosis, the present invention added in tunning Trichoderma and
Paecilomyces lilacinus, the bio-organic fertilizer of efficiently preventing and treating soil-borne disease is made.
In the tunning that black liquor of pulp making obtains after dehydration and fermentation process, except the Bacillus subtillis of routine is (thin
Bacterium) outside, Trichoderma (fungi) and Paecilomyces lilacinus (fungi), fungi and bacteria combination are additionally added, can preferably build crop
Root Tiny ecosystem, preferably effect is played in soil-borne disease is prevented and treated.To keep the activity of biological organic carbon molecules in fermentation material,
Drying granulation is not carried out to it, production water content is preferable in 30% or so powdered fertilizer effect, and production cost is low.
Preferably, bacillus subtilis, Trichoderma and Paecilomyces lilacinus are added in tunning, makes withered grass in finished product
Bacillus, Trichoderma and Paecilomyces lilacinus living bacteria count respectively reach 0.1-0.3 hundred million/gram, preferably 0.2 hundred million/gram,
0.05-0.2 hundred million/gram, preferably 0.1 hundred million/gram, 0.05-0.2 hundred million/gram, preferably 0.1 hundred million/gram.
Preferably, the method for the invention comprises the following steps：
(1) black liquor of pulp making adds sulphur acid for adjusting pH that black liquor of pulp making then is passed through into bio-modification pond to 7.0-8.0；
(2) modified microbe bacterium solution is added in bio-modification pond, modified microbe bacterium solution is with black liquor of pulp making volume ratio
1:10；Modified microbe is mainly thiobacillus ferrooxidans and lignin fungi, and various microorganisms are cultivated to bacterium in its culture medium
Body quantity is 109Individual/more than ml, then according to thiobacillus ferrooxidans' nutrient solution：Lignin fungi nutrient solution=3.5:1 (volume
Than) well mixed modified microbe bacterium solution is made；
(3) fluid temperature is maintained between 25 DEG C -35 DEG C in bio-modification pond, Air Exposure 6-12h；
(4) black liquor of pulp making after bio-modification is handled is passed through plate and frame type filter-press and carries out press filtration, feed time 1.5-
3.0h, feed pressure 0.6-0.8MPa, pressurize 1.0-2.0h, 1.2~1.6MPa of diaphragm pressing pressure.Press filtration terminates rear mud cake and contained
Water is below 60%；
(5) heap fermentation is built：Auxiliary material is added into mud cake in mud cake weight 10%-35% ratio, the water for the compound that ferments
Sub-control system adds the fermenting agent of gross weight 0.05% in above-mentioned material, builds 1.0-1.2 rice fermentation heaps, build in 50%-55%
Material is mixed with turner after heap, and mud cake is smashed.Auxiliary material can be wheat bran, dregs of beans, powder of straw, rice husk, furfural dregs, wood
One or more in potato slag.Fermenting agent is organic matter decomposing inoculant；
2-3 days heap temperature can be raised to more than 60 DEG C after building heap.Heap temperature rise turns over throwing with turner again to after more than 60 DEG C 48h,
Make fermenting raw materials uniform.48h carries out turning over throwing for the third time after turning over throwing for the second time.Third time continues the 48h that ferments after turning over throwing, terminates aerobic
Fermentation process.
(6) amphimicrobian ferments：After aerobic fermentation terminates, fermentation material is transferred to laydown area, the high 3.0-4.0m of heap, lid grass
Curtain moisturizing is breathed freely.Do not have to turning after building high heap, it is on-demand after being kept for 25-35 days；
(7) obtained fermentation material production biological organic carbon is fertile after utilizing amphimicrobian fermentation ends, first by the thing in high heap
Material is spread out, carry out reducing temperature and humidity, when humidity of materials is dropped to below 30%, be proportionally added into bacillus subtilis, Trichoderma and
Paecilomyces lilacinus, make bacillus subtilis in finished product, Trichoderma and Paecilomyces lilacinus bacterial content respectively reach 0.2 hundred million/gram,
0.1 hundred million/gram, 0.1 hundred million/gram.It can be packed after fermentation material is stirred with microbial inoculum, production powdery biological organic carbon fertilizer.
The present invention has the advantages that：
Using paper mill sludge biologic modified method, solve organic matter caused by chemic modified method adds a large amount of inorganic matters and support
Divide the problem of declining, simplify operating process, reduce processing cost, gained dewatered sludge is convenient for following resourceization profit
With.
The aerobic fermentation stage accelerates the decomposition and conversion of organic substance, while high temperature can kill pathogen；Amphimicrobian is sent out
In the ferment stage, oxygen deficiency, organic substance is converted into various small molecule Organic Compounds, rather than is converted into carbon dioxide loss
Fall, improve the content of tunning small molecular organic carbon, reduce the loss of organic matter in fermentation process.Various small molecules
Organic Compounds can directly be absorbed by crop root, and various constituents are converted into plant；Small molecule organic carbon
The absorption of inorganic nutrients can be driven simultaneously by absorbing, therefore the organic carbon fertilizer that the fermentation method obtains is rapid-action, and fertilizer efficiency is high.Tradition
The content of soluble small molecule organic carbon only accounts for 1% right (dry) in the tunning that aerobic fermentation obtains, and elder generation is aerobic again
Amphimicrobian fermentation technique can make the content of soluble small molecule organic carbon in tunning bring up to more than 4%.It is in addition, traditional
Aerobic fermentation needs more than 20 days, and uses the first aerobic fermentation technique of amphimicrobian again that the aerobic stage of fermentation period can contract
It is as short as 6-12 days or so, therefore rate of materials turnover can be greatly speeded up.
Have Trichoderma and the Paecilomyces lilacinus microbial inoculum product of commercialization in the market, mainly with foliage-spray, spread manuer in holes or
Based on seed dressing.Because pure microbial inoculum dosage is few, using inconvenience and it is administered alone time-consuming.By Trichoderma and Paecilomyces lilacinus
Bacterium is added in bio-organic fertilizer, using convenient, fertilizer efficiency height, function bacterium reasonable mixture ratio, to droop, epidemic disease, rotten mildew, line
The protection effects such as parasitosis are good.
Embodiment
For ease of understanding the present invention, it is as follows that the present invention enumerates embodiment.Those skilled in the art are it will be clearly understood that the implementation
Example is used only for help and understands the present invention, is not construed as the concrete restriction to the present invention.
Embodiment 1
Black liquor of pulp making pH value first adjusts acid-base value to 7.0 more than 12 with sulfuric acid.By the black liquor of pulp making of solid content 2.0%
Modified-reaction pond is passed through, the modified microbe bacterium solution of the volume of black liquor 1/10 is added into pond.Fluid temperature is protected in bio-modification pond
Hold at 25 DEG C, Air Exposure 12h.Black liquor of pulp making after bio-modification is handled is passed through plate and frame type filter-press and carries out press filtration, charging
Time is 2.0h, feed pressure 0.8MPa, pressurize 2.0h, diaphragm pressing pressure 1.2MPa.Mud cake is transferred to by press filtration after terminating
Aerobic fermentation area, wheat bran and dregs of beans are added into mud cake in the ratio of mud cake weight 12%, and (weight is than 1:1, moisture
14%), ferment compound moisture control 55%, in above-mentioned material add gross weight 0.05% fermenting agent, build 1.0
The high fermentation heap of rice, builds after heap and is mixed material with turner, and mud cake is smashed.2 days heap temperature can be raised to more than 60 DEG C after building heap.
After keeping 48h, throwing is turned over turner again, makes fermenting raw materials uniform.48h carries out turning over throwing for the third time after turning over throwing for the second time.3rd
It is secondary turn over throwing after continue ferment 48h, terminate aerobic fermentation process.After aerobic fermentation terminates, fermentation material is transferred to laydown area, heap is high
3.5m, lid straw screen or mat moisturizing are breathed freely.Do not have to turning after building high heap, the material in high heap is spread out after being kept for 35 days, carries out cooling drop
It is wet.When humidity of materials is dropped to below 30%, bacillus subtilis, Trichoderma and Paecilomyces lilacinus are proportionally added into, is made into
In product bacillus subtilis, Trichoderma and Paecilomyces lilacinus bacterial content respectively reach 0.2 hundred million/gram, 0.15 hundred million/gram, 0.1 hundred million/gram.
It can be packed after fermentation material is stirred with microbial inoculum, obtain finished product powdery biological organic carbon fertilizer.
According to the bioassay standard of the content of organic matter in NY/T1976-2010 water-soluble fertilizers, the present embodiment powdery biology is measured
Effective carbon rate is 5.1% in organic carbon fertilizer, is high-carbon organic fertilizer.
Embodiment 2
Black liquor of pulp making pH value first adjusts acid-base value to 8.0 more than 12 with sulfuric acid.By the black liquor of pulp making of solid content 1.5%
Modified-reaction pond is passed through, the modified microbe bacterium solution of the volume of black liquor 1/15 is added into pond.Fluid temperature is protected in bio-modification pond
Hold at 35 DEG C, Air Exposure 6h.Black liquor of pulp making after bio-modification is handled is passed through plate and frame type filter-press and carries out press filtration, during charging
Between be 2.0h, feed pressure 0.8MPa, pressurize 2.0h, diaphragm pressing pressure 1.2MPa.Mud cake is shifted most intimate friend by press filtration after terminating
Aerobe fermentation area, rice husk and corn stalk powder are added into mud cake in the ratio of mud cake weight 33%, and (weight is than 1:1, moisture
20%), ferment compound moisture control 50%, in above-mentioned material add gross weight 0.05% fermenting agent, build 1.2
The high fermentation heap of rice, builds after heap and is mixed material with turner, and mud cake is smashed.3 days heap temperature can be raised to more than 60 DEG C after building heap.
After keeping 48h, throwing is turned over turner again, makes fermenting raw materials uniform.48h carries out turning over throwing for the third time after turning over throwing for the second time.3rd
It is secondary turn over throwing after continue ferment 48h, terminate aerobic fermentation process.After aerobic fermentation terminates, fermentation material is transferred to laydown area, heap is high
3.5m, lid straw screen or mat moisturizing are breathed freely.Do not have to turning after building high heap, the material in high heap is spread out after being kept for 25 days, carries out cooling drop
It is wet.When humidity of materials is dropped to below 30%, bacillus subtilis, Trichoderma and Paecilomyces lilacinus are proportionally added into, is made into
In product bacillus subtilis, Trichoderma and Paecilomyces lilacinus bacterial content respectively reach 0.2 hundred million/gram, 0.1 hundred million/gram, 0.15 hundred million/gram.
It can be packed after fermentation material is stirred with microbial inoculum, obtain finished product powdery biological organic carbon fertilizer.
According to the bioassay standard of the content of organic matter in NY/T1976-2010 water-soluble fertilizers, the present embodiment powdery biology is measured
Effective carbon rate is 4.2% in organic carbon fertilizer, is high-carbon organic fertilizer.
Embodiment 3
Black liquor of pulp making pH value first adjusts acid-base value to 7.5 more than 12 with sulfuric acid.By the black liquor of pulp making of solid content 2.5%
Modified-reaction pond is passed through, the modified microbe bacterium solution of the volume of black liquor 1/10 is added into pond.Fluid temperature is protected in bio-modification pond
Hold at 30 DEG C, Air Exposure 8h.Black liquor of pulp making after bio-modification is handled is passed through plate and frame type filter-press and carries out press filtration, during charging
Between be 2.0h, feed pressure 0.8MPa, pressurize 2.0h, diaphragm pressing pressure 1.2MPa.Mud cake is shifted most intimate friend by press filtration after terminating
Aerobe fermentation area, manioc waste and furfural dregs are added into mud cake in the ratio of mud cake weight 25%, and (weight is than 1:1, moisture
35%), ferment compound moisture control 55%, in above-mentioned material add gross weight 0.05% fermenting agent, build 1.2
The high fermentation heap of rice, builds after heap and is mixed material with turner, and mud cake is smashed.2 days heap temperature can be raised to more than 60 DEG C after building heap.
After keeping 48h, throwing is turned over turner again, makes fermenting raw materials uniform.48h carries out turning over throwing for the third time after turning over throwing for the second time.3rd
It is secondary turn over throwing after continue ferment 48h, terminate aerobic fermentation process.After aerobic fermentation terminates, fermentation material is transferred to laydown area, heap is high
3.5m, lid straw screen or mat moisturizing are breathed freely.Do not have to turning after building high heap, the material in high heap is spread out after being kept for 30 days, carries out cooling drop
It is wet.When humidity of materials is dropped to below 30%, bacillus subtilis, Trichoderma and Paecilomyces lilacinus are proportionally added into, is made into
In product bacillus subtilis, Trichoderma and Paecilomyces lilacinus bacterial content respectively reach 0.25 hundred million/gram, 0.1 hundred million/gram, 0.1 hundred million/gram.
It can be packed after fermentation material is stirred with microbial inoculum, obtain finished product powdery biological organic carbon fertilizer.
According to the bioassay standard of the content of organic matter in NY/T1976-2010 water-soluble fertilizers, the present embodiment powdery biology is measured
Effective carbon rate is 5.5% in organic carbon fertilizer, is high-carbon organic fertilizer.
Embodiment 4
Black liquor of pulp making pH value first adjusts acid-base value to 7.3 more than 12 with sulfuric acid.By the black liquor of pulp making of solid content 3.5%
Modified-reaction pond is passed through, the modified microbe bacterium solution of the volume of black liquor 1/5 is added into pond.Fluid temperature is kept in bio-modification pond
At 27 DEG C, Air Exposure 10h.Black liquor of pulp making after bio-modification is handled is passed through plate and frame type filter-press and carries out press filtration, during charging
Between be 1.5h, feed pressure 0.8MPa, pressurize 1.5h, diaphragm pressing pressure 1.3MPa.Mud cake is shifted most intimate friend by press filtration after terminating
Aerobe fermentation area, dregs of beans (moisture 14%), the moisture for the compound that ferments are added into mud cake in the ratio of mud cake weight 28%
Control adds the fermenting agent of gross weight 0.03% in above-mentioned material, builds 1.0 meters of high fermentation heaps 50%, builds after heap with turning over
Throwing machine mixes material, and mud cake is smashed.2 days heap temperature can be raised to more than 60 DEG C after building heap.Keep 24h after, again with turn over throwing
Machine turns over throwing, makes fermenting raw materials uniform.48h carries out turning over throwing for the third time after turning over throwing for the second time.Third time continues the 48h that ferments after turning over throwing,
Terminate aerobic fermentation process.After aerobic fermentation terminates, fermentation material is transferred to laydown area, the high 3.0m of heap, lid straw screen or mat moisturizing is breathed freely.
Do not have to turning after building high heap, spread the material in high heap out after being kept for 33 days, carry out reducing temperature and humidity.Treat that humidity of materials drops to 30%
When following, bacillus subtilis, Trichoderma and Paecilomyces lilacinus are proportionally added into, makes bacillus subtilis in finished product, trichoderma
Bacterium and Paecilomyces lilacinus bacterial content respectively reach 0.2 hundred million/gram, 0.1 hundred million/gram, 0.15 hundred million/gram.Fermentation material and microbial inoculum stirring is equal
It can be packed after even, obtain finished product powdery biological organic carbon fertilizer.
According to the bioassay standard of the content of organic matter in NY/T1976-2010 water-soluble fertilizers, the present embodiment powdery biology is measured
Effective carbon rate is 5.8% in organic carbon fertilizer, is high-carbon organic fertilizer.
Embodiment 5
Black liquor of pulp making pH value first adjusts acid-base value to 7.8 more than 12 with sulfuric acid.By the black liquor of pulp making of solid content 2.5%
Modified-reaction pond is passed through, the modified microbe bacterium solution of the volume of black liquor 1/10 is added into pond.Fluid temperature is protected in bio-modification pond
Hold at 33 DEG C, Air Exposure 7h.Black liquor of pulp making after bio-modification is handled is passed through plate and frame type filter-press and carries out press filtration, during charging
Between be 2.0h, feed pressure 0.7MPa, pressurize 2.0h, diaphragm pressing pressure 1.4MPa.Mud cake is shifted most intimate friend by press filtration after terminating
Aerobe fermentation area, manioc waste (moisture 35%), the water for the compound that ferments are added into mud cake in the ratio of mud cake weight 25%
Sub-control system adds the fermenting agent of gross weight 0.08% in above-mentioned material, builds 1.1 meters of high fermentation heaps, used after building heap 55%
Turner mixes material, and mud cake is smashed.3 days heap temperature can be raised to more than 60 DEG C after building heap.After keeping 48h, again with turning over
Throwing machine turns over throwing, makes fermenting raw materials uniform.48h carries out turning over throwing for the third time after turning over throwing for the second time.Third time continues to ferment after turning over throwing
72h, terminate aerobic fermentation process.After aerobic fermentation terminates, fermentation material is transferred to laydown area, the high 4.0m of heap, lid straw screen or mat moisturizing
It is ventilative.Do not have to turning after building high heap, spread the material in high heap out after being kept for 28 days, carry out reducing temperature and humidity.Treat that humidity of materials drops
During to less than 30%, bacillus subtilis, Trichoderma and Paecilomyces lilacinus are proportionally added into, makes bacillus subtilis in finished product
Bacterium, Trichoderma and Paecilomyces lilacinus bacterial content respectively reach 0.2 hundred million/gram, 0.15 hundred million/gram, 0.1 hundred million/gram.By fermentation material and microbial inoculum
It can be packed after stirring, obtain finished product powdery biological organic carbon fertilizer.
According to the bioassay standard of the content of organic matter in NY/T1976-2010 water-soluble fertilizers, the present embodiment powdery biology is measured
Effective carbon rate is 4.6% in organic carbon fertilizer, is high-carbon organic fertilizer.
Comparative example 1
It is identical with the step of embodiment 1, except the black liquor of pulp making of solid content 0.5% is passed through into modified-reaction pond.Because of solid content
Too low, black liquor treating capacity is only 1/4 or so of normal treating capacity in the unit interval, greatly reduces black liquor treatment effeciency.
Comparative example 2
It is identical with the step of embodiment 1, except the black liquor of pulp making of solid content 8% is passed through into modified-reaction pond.Because of black liquid consistency
It is too high, cause microorganism modification insufficient, after filter press press filtration, moisture content of the cake is still up to 68%, influences rear supervention
Ferment utilizes.
Comparative example 3
It is identical with the step of embodiment 2, except the moisture for the compound that ferments is controlled 40%.Aerobic fermentation process is substantially just
Often, amphimicrobian fermentation stage is insufficient because water shortage causes to ferment.
According to the bioassay standard of the content of organic matter in NY/T1976-2010 water-soluble fertilizers, this comparative example powdery biology is measured
Effective carbon rate is 1.8% in organic carbon fertilizer.
Comparative example 4
It is identical with the step of embodiment 2, except the moisture for the compound that ferments is controlled 65%.Heap temperature can not be raised to 60 after building heap
More than DEG C, and fermentation material foul smelling taste produces, and can not smoothly complete fermentation.
Comparative example 5
It is identical with the step of embodiment 3, except fluid temperature is maintained at 20 DEG C in bio-modification pond.It is modified because temperature is too low
Microbial metabolism is slow, and sludge modification processing is insufficient, and after filter press press filtration, moisture content of the cake is still up to 76%, after influenceing
Supervention ferment utilizes.
Comparative example 6
It is identical with the step of embodiment 3, except fluid temperature is maintained at 40 DEG C in bio-modification pond.It is modified because temperature is too high
Microbial growth is suppressed, and sludge modification processing is insufficient, and after filter press press filtration, moisture content of the cake is still up to 78%,
Subsequent fermentation is influenceed to utilize.
Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (10)
1. a kind of method that biological organic carbon fertilizer is produced using black liquor of pulp making, is comprised the following steps：
(1) black liquor of pulp making is adjusted into pH to neutral or alkalescent, Air Exposure is carried out after adding modified microbe bacterium solution thereto；
(2) black liquor of pulp making after bio-modification processing obtained by step (1) is processed into mud cake of the water content below 60%；
(3) mud cake obtained by step (2) is added after auxiliary material and fermentation compound is made, added fermenting agent thereto and build fermentation heap,
Then aerobic fermentation, amphimicrobian fermentation are carried out successively；
(4) obtained fermentation material production biological organic carbon is fertile after utilizing step (3) amphimicrobian fermentation ends.
2. according to the method for claim 1, it is characterised in that black liquor of pulp making is adjusted into pH to 7.0-8.0 in step (1)；
Preferably, pH is adjusted using sulfuric acid.
3. method according to claim 1 or 2, it is characterised in that modified microbe mainly includes acidophilus sulphur in step (1)
Bacillus and lignin fungi；
Preferably, modified microbe bacterium solution preparation method is as follows：Thiobacillus ferrooxidans and lignin fungi are cultivated at it respectively
Culture to thalline quantity is 10 in base9Individual/more than ml, then thiobacillus ferrooxidans' nutrient solution and lignin fungi nutrient solution are mixed
Modified microbe bacterium solution is made in conjunction；
Preferably, the volume ratio of thiobacillus ferrooxidans' nutrient solution and lignin fungi nutrient solution is 2-5:1.
4. according to the method described in claim any one of 1-3, it is characterised in that modified microbe bacterium solution and system in step (1)
The volume ratio for starching black liquor is 1:5-15；
Preferably, the temperature of Air Exposure is 25 DEG C -35 DEG C, and the time of Air Exposure is 6-12h.
5. according to the method described in claim any one of 1-4, it is characterised in that processing is press filtration described in step (2), preferably
For plate and frame type filter-press press filtration；
Preferably, feed time during press filtration is 1.5-3.0h, feed pressure 0.6-0.8MPa, dwell time 1.0-
2.0h, diaphragm pressing pressure are 1.2~1.6MPa.
6. according to the method described in claim any one of 1-5, it is characterised in that auxiliary material is wheat bran, dregs of beans, straw in step (3)
One kind or two or more combination in stalk powder, rice husk, furfural dregs, manioc waste；
Preferably, fermenting agent is organic matter decomposing inoculant.
7. according to the method described in claim any one of 1-6, it is characterised in that the amount of auxiliary material is mud cake weight in step (3)
10%-35%；
Preferably, the amount of fermenting agent is mud cake and the 0.02-0.1% of auxiliary material gross weight；
Preferably, ferment compound moisture control in 50%-55%.
8. according to the method described in claim any one of 1-7, it is characterised in that the process of aerobic fermentation is as follows in step (3)：
Build after heap material to be carried out turn over throwing for the first time and mix material, and mud cake is smashed, build 2-3 days heap temperature after heap can be raised to 60 DEG C with
On, after keeping 24-72h, turned over throwing for the second time again, make fermenting raw materials uniform, third time is carried out after 24-72h and turns over throwing, is continued
Ferment 24-72h.
9. according to the method described in claim any one of 1-8, it is characterised in that the process that amphimicrobian ferments in step (3)
It is as follows：After aerobic fermentation terminates, fermentation material heap is high, lid covering moisturizing is breathed freely, on-demand after being kept for 25-35 days.
10. according to the method described in claim any one of 1-9, it is characterised in that utilize amphimicrobian fermentation knot in step (4)
The process of obtained fermentation material production biological organic carbon fertilizer is as follows after beam：First the material in high heap is spread out, carries out reducing temperature and humidity,
When humidity of materials is dropped to below 30%, bacillus subtilis, Trichoderma and Paecilomyces lilacinus are added, by fermentation material and microbial inoculum
The biological organic carbon fertilizer is can obtain after stirring；
Preferably, bacillus subtilis, Trichoderma and Paecilomyces lilacinus are added in tunning, makes withered grass gemma in finished product
Bacillus, Trichoderma and Paecilomyces lilacinus living bacteria count respectively reach 0.1-0.3 hundred million/gram, 0.05-0.2 hundred million/gram, 0.05-
0.2 hundred million/gram.
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| CN116969782A (en) * | 2023-08-18 | 2023-10-31 | 广州茂华环境发展有限公司 | Method for preparing fertilizer by treating organic waste through controllable wet catalytic oxidation process |
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