CN106702798A - Method of utilizing waste liquid and waste residue of corn pulping to prepare fertilizer - Google Patents
Method of utilizing waste liquid and waste residue of corn pulping to prepare fertilizer Download PDFInfo
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- CN106702798A CN106702798A CN201710177142.9A CN201710177142A CN106702798A CN 106702798 A CN106702798 A CN 106702798A CN 201710177142 A CN201710177142 A CN 201710177142A CN 106702798 A CN106702798 A CN 106702798A
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/30—Defibrating by other means
- D21B1/34—Kneading or mixing; Pulpers
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/80—Separation, elimination or disposal of harmful substances during the treatment
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D1/00—Methods of beating or refining; Beaters of the Hollander type
- D21D1/20—Methods of refining
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Molecular Biology (AREA)
- Organic Chemistry (AREA)
- Toxicology (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Fertilizers (AREA)
Abstract
The invention relates to a fertilizer preparation method, in particular to a method of utilizing waste liquid and waste residue of corn pulping to prepare fertilizer, and aims to solve the problem that existing methods of using corn straw as a raw material for composting are long in composting time and bad for storage and utilization of nutrition. The method includes: step 1, feeding corn straw into a smasher after feeding the corn straw into a high-speed vibration screen to enable a material to be in a suspended or half-suspended state; step 2, at normal pressure, soaking corn straw skin in soaking liquid, extruding out low-concentration waste liquid through an extruder after soaking, and collecting the low-concentration waste liquid; step 3, using a two-roller mill to mill the corn straw skin raw material after being soaked, feeding size after milling and separating through the two-roller mill into a high-concentration pulping machine, extruding out high-concentration waste liquid through the extruder after pulping, and collecting the high-concentration waste liquid; step 4, concentrating the low-concentration waste liquid, and mixing the same with the high-concentration waste liquid and waste residue obtained in the step 1 for composting; step 5, discharging, packaging or mixing with sterilized clay for granulation to complete. The method is used for preparing the fertilizer.
Description
Technical field
The present invention relates to a kind of method for making fertilizer.
Background technology
Major pollutants are string in corn pulping waste liquor, and pollutant concentration is higher, and intractability is big.At present, give up
Though liquid processing means can effectively reduce pulping waste liquor pollution, resource profit is not carried out to pulping waste liquor active ingredient
With.According to Biochemical method, the biodegradability of waste liquid is poor, processing cost is high and waste liquid for maize straw chemical machinery pulp waste
In sulfide can suppress anaerobism bacteria growing and cannot carry out；According to solids in evaporation, concentration, burning waste liquid, because of concentration
It is too low, it is necessary to consume a large amount of heat energy and lose more than gain.
Maize straw is made up of leaf, crust and marrow, wherein, marrow, leaf this two parts account for the 55% of maize straw total amount with
On.During pulping and paper-making, what is mainly utilized is maize straw crust, and the presence of leaf and marrow causes serum viscosity big, production efficiency
Low, cost increases.Therefore, it is necessary to effectively remove the marrow and leaf in maize straw when carrying out pulping and paper-making using maize straw,
Produce a large amount of waste residues.And process these residue resources and still need to put into ample resources.
At present, maize straw manure includes high temperature nuclear reactor corruption and microbial inoculum heap two kinds of forms of corruption.Due to maize straw contain it is wooden
The components such as element, cellulose, hemicellulose so that the high temperature nuclear reactor corruption time is long, is unfavorable for the preservation and utilization of nutrient, although at present may be used
Fermentation time can be shortened with by reasonably Vaccination Extraneous Source Microorganism, it is still desirable to 20-40 days or so；The skin master of maize straw
Want based on composition fiber, compost treatment is directly carried out with maize straw so that fiber does not obtain rationalizing profit in maize straw skin
With causing the wasting of resources；Skin is not microorganism optimum capacity source in composting process, due to acidic cleaning in maize straw skin
Insoluble protein accounts for the ratio of thick protein far above leaf, marrow, illustrates that the degree that protein microorganism utilizes in skin is very low；Corn
The fibre fractionation content distribution of each several part is very uneven after straw separation, wherein the acid detergent fiber of skin and pickling content of lignin
Higher than leaf, marrow, show that skin nutritive value is less than marrow, leaf.And digestible energy in skin, metabolizable energy, net energy for maintenance, fattening net energy several can
Using minimum energy.
The content of the invention
The present invention is to solve compost is carried out by raw material of maize straw at present, the heap corruption time is long, is unfavorable for the guarantor of nutrient
A kind of problem deposited and utilize, there is provided method of utilization corn pulping waste liquor waste residue system fertilizer.
The present invention is comprised the following steps using the method for corn pulping waste liquor waste residue system fertilizer：
First, maize straw is sent into pulverizer, is crushed to granularity for 1~2cm, first with the stalk that centrifugal blower will be crushed
Feeding high-speed oscillating sieve, is in material and suspends or half suspended state.Again by cyclopneumatic separator, due to the lightweight thing such as skin and marrow
The density of material is different so that the light fraction such as skin and marrow is separated, and obtains maize straw skin and waste residue, and the waste residue includes marrow, leaf
Deng；
2nd, under normal pressure, maize straw skin is impregnated in maceration extract, low concentration waste liquid is extruded by extruder after dipping,
Collect low concentration waste liquid；
3rd, by by the maize straw skin raw material roll mill grinding of dipping, the slurries after being separated through roll mill grinding are also
Defibrination in high-density paste mill is sent into, high-concentration waste liquid is extruded by extruder after defibrination, collect high-concentration waste liquid；
4th, low concentration waste liquid is carried out into concentration, the waste residue for then being obtained with high-concentration waste liquid and step one mixes, is given up
The quality of slag is 1kg with the volume ratio of waste liquid:2.5L, carries out compost treatment；
5th, discharging is packed or mixed with sterilizing clay carries out granulation treatment, that is, complete.
Further, the maize straw skin that step one is obtained first is pre-processed, then carries out the impregnation process of next step.Institute
The specific method for stating pretreatment is：With 50~60 DEG C of water washing maize straw skin raw material, then at ambient pressure decatize 20~
30min, finally sends into hydropress squeezing extrusion.
Further, maceration extract described in step 2 is KOH, (NH4)2SO3In one or two mixing, wherein soaking
KOH and (NH when stain liquid is mixed liquor4)2SO3Volume ratio be 1:1.
Further, the mass concentration of the KOH solution is 2%~10%.
Further, described (NH4)2SO3Mass concentration be 2%~10%.
Add KOH or (NH4)2SO3While pulp quality is improved, compost changing effect can be improved.
Further, low concentration waste liquid is concentrated into the 30%~40% of original volume in step 4.
Further, the condition of compost is in step 4：The compost time is 15~25 days, and temperature is room temperature, strain consumption
It is waste liquid and the 0.4%~1.0% of waste residue gross mass；Glucose consumption is the 0.5%~1.0% of strain quality；Amount of urea
It is strain quality 0.5%~1.0%；PH is 6~7；Wherein use H3PO4, KOH or (NH4)3PO4Regulation pH value.Step of the present invention
Strain used by four is purchased from " the bio-organic fertilizer live bacteria agent " of Beijing legendary god of farming Cai He biotech companies, " bio-organic fertilizer
Live bacteria agent " is composited by fungi, saccharomycete, actinomyces and bacterium etc..
Principle of the invention：
The waste residue (marrow, leaf) that the present invention produces maize straw in melting process, gives up with the dipping that pulping process is produced
Low concentration waste liquid, high-concentration waste liquid mixing, carry out compost treatment after liquid, concentration, produce concentrated fertilizer.Pulping process soaks in normal pressure
After stain, lignin leachable content is relatively low in waste liquid, acts on poor to Antimicrobial；Carbohydrate, inorganic matter, organic matter contain in corn marrow
Amount is higher；Polluter in mechanochemical reaction pulping waste liquor, is mainly derived from the organic compound of dissolution in production process
With the fiber fines being lost in；Waste liquid and marrow carry out making fertile treatment after concentration, and make to produce in maize straw pulping and papermaking processes is useless
Liquid waste residue gets utilization.
The present invention adds (NH4)2SO3Regulation solution ph, reduces the destruction to fiber so that the intensity of paper pulp is improved, and is obtained
Rate increases.Use (NH4)2SO3Treatment is oxidized to ammonium sulfate except the maize straw pulping waste liquor after marrow, imonium, and glycosyloxy turns to organic
Acid so that pH value is gradually reduced, as acidic fertilizier and physiological acidic fertilizer, can direct nutrition crops, stimulating growth, increasing
Plus organic matter, improve keeping fertility.
Beneficial effects of the present invention：
Slurrying produces waste liquid typically using anaerobic-aerobic-advanced treating combination biologic treating technique, processed waste water discharge
Concentration can reach《Pulp and paper industry pollution discharge standard》(GB3544-2007) require, although can effectively solve to give up
Liquid pollution problem, but accordingly increased the input cost of enterprise.The inventive method had both solved liquid and waste slag produced in pulping process
Process problem, can increase Business Economic Benefit again.
The present invention by maize straw pulping waste liquor waste residue compost treatment, when can shorten compost to a certain extent
Between.This method can just meet the rotten degree judging standard index of composting production for 10~20 days, and the content of organic matter and nitrogen content can
Meet matured compost nutrient chemistry Con trolling index.Because main component based on sugar, is in maize straw pulping waste residues (marrow, leaf)
The growth of microorganism is originated there is provided enough energy, accelerates the ability of becoming thoroughly decomposed of microorganism, when accelerating compost to a certain extent
Between.
The present invention improves soil by maize straw pulping waste liquor waste residue compost treatment, favorably promoting soil granular structure
Earth physicochemical property.Due to containing a certain amount of lignin in maize straw waste residue, lignin produces humic acid through microbial degradation, rotten
Growing acid can promote soil granular and improve the effect of soil physico-chemical property.
The present invention is mixed the waste liquid and waste residue (marrow, leaf) that are produced in maize straw pulping and papermaking processes, using heap
Macerate also field and biochemical quick composting technology manufacture high-quality organic fertilizer imposes on field, realize the liquid and waste slag produced resource profit of pulping and paper-making
With.
The present invention by maize straw pulping waste liquor waste residue compost treatment, reducing the processing cost of pulping waste liquor waste residue,
Simultaneously for maize straw pulping waste liquor Solid state fermentation provides new approaches.
Specific embodiment
Technical solution of the present invention is not limited to act specific embodiment set forth below, also including between each specific embodiment
Any combination.
Specific embodiment one：Present embodiment is comprised the following steps using the method for corn pulping waste liquor waste residue system fertilizer：
First, maize straw is sent into pulverizer, is crushed to granularity for 1~2cm, first with the stalk that centrifugal blower will be crushed
Feeding high-speed oscillating sieve, is in material and suspends or half suspended state, then by cyclopneumatic separator so that skin is separated with marrow, is obtained
To maize straw skin and waste residue；
2nd, under normal pressure, maize straw skin is impregnated in maceration extract, low concentration waste liquid is extruded by extruder after dipping,
Collect low concentration waste liquid；
3rd, by by the maize straw skin raw material roll mill grinding of dipping, the slurries after being separated through roll mill grinding are also
Defibrination in high-density paste mill is sent into, high-concentration waste liquid is extruded by extruder after defibrination, collect high-concentration waste liquid；
4th, low concentration waste liquid is carried out into concentration, the waste residue for then being obtained with high-concentration waste liquid and step one mixes, is given up
The quality of slag is 1kg with the volume ratio of waste liquid:2.5L, carries out compost treatment；
5th, discharging is packed or mixed with sterilizing clay carries out granulation treatment, that is, complete.
Specific embodiment two：Present embodiment from unlike specific embodiment one：The corn stalk that step one is obtained
Stalk skin raw material is first pre-processed, then carries out the impregnation process of next step.The specific method of the pretreatment is：With 50~60 DEG C
Water washing maize straw skin raw material, then 20~30min of decatize at ambient pressure, finally sends into hydropress extruding and dredges
Solution.Other are identical with specific embodiment one.
Specific embodiment three：Present embodiment from unlike specific embodiment one or two：Soaked described in step 2
Stain liquid is KOH, (NH4)2SO3In one or two mixing, KOH and (NH when wherein maceration extract is mixed liquor4)2SO3Body
Product is than being 1:1.Other are identical with specific embodiment one or two.
Specific embodiment four：Present embodiment from unlike specific embodiment three：The quality of the KOH solution is dense
Spend is 2%~10%.Other are identical with specific embodiment three.
Specific embodiment five：Present embodiment from unlike specific embodiment three：(the NH4)2SO3Quality
Concentration is 2%~10%.Other are identical with specific embodiment three.
Specific embodiment six：Unlike one of present embodiment and specific embodiment one to five：Will in step 4
Low concentration waste liquid is concentrated into the 30%~40% of original volume.Other are identical with one of specific embodiment one to five.
Specific embodiment seven：Unlike one of present embodiment and specific embodiment one to six：Heap in step 4
Fertilizer condition be：The compost time is 15~25 days, and temperature is room temperature, strain consumption is waste liquid with the 0.4% of waste residue gross mass~
1.0%；Glucose consumption is the 0.5%~1.0% of strain quality；Amount of urea is strain quality 0.5%~1.0%；PH is 6
~7.Wherein use H3PO4, KOH or (NH4)3PO4Regulation pH value.
The strain that compost is added in present embodiment step 4 is purchased from Beijing legendary god of farming Cai He biotech companies, trade name
Referred to as " bio-organic fertilizer live bacteria agent " is composited by fungi, saccharomycete, actinomyces and bacterium etc..Other and specific embodiment party
One of formula one to six is identical.
Embodiments of the invention are elaborated below, following examples are entered under premised on technical solution of the present invention
Row is implemented, and gives detailed embodiment and specific operating process, but protection scope of the present invention is not limited to following realities
Apply example.
Embodiment 1：
Using the fertile method of corn pulping waste liquor waste residue system, it is comprised the following steps that the present embodiment：
First, maize straw is sent into pulverizer, is crushed to granularity for 2cm, send the stalk of crushing first with centrifugal blower
Enter high-speed oscillating sieve, be in material and suspend or half suspended state.Again by cyclopneumatic separator, due to light materials such as skin and marrows
Density it is different so that the light fraction such as skin and marrow is separated, and obtains maize straw skin and waste residue, and the waste residue includes marrow, leaf etc.；
2nd, under normal pressure, maize straw skin is impregnated in KOH solution, low concentration waste liquid is extruded by extruder after dipping,
Collect low concentration waste liquid；Wherein the mass concentration of KOH solution is 5%；
3rd, by by the maize straw skin raw material roll mill grinding of dipping, the slurries after being separated through roll mill grinding are also
Defibrination in high-density paste mill is sent into, high-concentration waste liquid is extruded by extruder after defibrination, collect high-concentration waste liquid；
4th, low concentration waste liquid is carried out into concentration, is concentrated into the 35% of original volume, then with high-concentration waste liquid and step
The one waste residue mixing for obtaining, the quality of waste residue is 1kg with the volume ratio of waste liquid:2.5L, carries out compost treatment, and Portugal is added during compost
Grape sugar and urea stir (the purpose initial stage is for microorganism provides energy)；It is subsequently adding H3PO4The pH of mixture is adjusted to 7, then
Plus manure strain, after being well mixed, compost treatment is carried out 15 days in room temperature, turning treatment irregularly is carried out during compost, it is indefinite
Phase ground regulation pH to 7.Wherein the consumption of glucose is the 0.8% of strain quality；The consumption of urea is the 0.6% of strain quality；
The consumption of manure strain is the 0.5% of waste liquid and waste residue gross mass.
Manure strain is purchased from Beijing legendary god of farming Cai He biotech companies.
5th, discharging packaging.
This method shortens the compost time, can just meet within 10 days the rotten degree judging standard index of composting production.We
Fertilizer effect prepared by method is as shown in table 1.
Table 1
Claims (7)
1. using the method for corn pulping waste liquor waste residue system fertilizer, it is characterised in that the method is comprised the following steps：
First, maize straw is sent into pulverizer, is crushed to granularity for 1~2cm, the stalk that will be crushed first with centrifugal blower is sent into
High-speed oscillating sieve, is in material and suspends or half suspended state, then by cyclopneumatic separator so that skin is separated with marrow, obtains jade
Rice straw skin and waste residue；
2nd, under normal pressure, maize straw skin is impregnated in maceration extract, low concentration waste liquid is extruded by extruder after dipping, collected
Low concentration waste liquid；
3rd, by by the maize straw skin raw material roll mill grinding of dipping, the slurries after being separated through roll mill grinding will also send
Enter defibrination in high-density paste mill, high-concentration waste liquid is extruded by extruder after defibrination, collect high-concentration waste liquid；
4th, low concentration waste liquid is carried out into concentration, the waste residue for then being obtained with high-concentration waste liquid and step one mixes, waste residue
Quality is 1kg with the volume ratio of waste liquid:2.5L, carries out compost treatment；
5th, discharging is packed or mixed with sterilizing clay carries out granulation treatment, that is, complete.
2. the method for utilization corn pulping waste liquor waste residue system according to claim 1 fertilizer, it is characterised in that step one is obtained
Maize straw skin raw material first pre-processed, then carry out the impregnation process of next step；The specific method of the pretreatment is：With
50~60 DEG C of water washing maize straw skin raw material, then 20~30min of decatize at ambient pressure, finally sends into screw extrusion and discongests
Machine squeezing extrusion.
3. the method for utilization corn pulping waste liquor waste residue system according to claim 1 fertilizer, it is characterised in that institute in step 2
Maceration extract is stated for KOH, (NH4)2SO3In one or two mixing, KOH and (NH when wherein maceration extract is mixed liquor4)2SO3
Volume ratio be 1:1.
4. the method for utilization corn pulping waste liquor waste residue system according to claim 3 fertilizer, it is characterised in that the KOH solution
Mass concentration be 2%~10%.
5. the method for utilization corn pulping waste liquor waste residue system according to claim 3 the fertilizer, it is characterised in that (NH4)2SO3Mass concentration be 2%~10%.
6. the method for utilization corn pulping waste liquor waste residue system according to claim 1 fertilizer, it is characterised in that will in step 4
Low concentration waste liquid is concentrated into the 30%~40% of original volume.
7. the method for utilization corn pulping waste liquor waste residue system according to claim 1 fertilizer, it is characterised in that heap in step 4
Fertilizer condition be：The compost time is 15~25 days, and temperature is room temperature, strain consumption is waste liquid with the 0.4% of waste residue gross mass~
1.0%；Glucose consumption is the 0.5%~1.0% of strain quality；Amount of urea is strain quality 0.5%~1.0%；PH is 6
~7；Wherein use H3PO4, KOH or (NH4)3PO4Regulation pH value.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710177142.9A CN106702798A (en) | 2017-03-23 | 2017-03-23 | Method of utilizing waste liquid and waste residue of corn pulping to prepare fertilizer |
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| CN201710177142.9A CN106702798A (en) | 2017-03-23 | 2017-03-23 | Method of utilizing waste liquid and waste residue of corn pulping to prepare fertilizer |
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ID=58887053
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Cited By (4)
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| CN108589393A (en) * | 2018-05-16 | 2018-09-28 | 潍坊德瑞生物科技有限公司 | A kind of grass environment-friendly pulping recovery process |
| CN112726266A (en) * | 2020-12-24 | 2021-04-30 | 东北农业大学 | Method for treating straw and paper pulp obtained by method |
| CN114164713A (en) * | 2021-12-03 | 2022-03-11 | 中国水产科学研究院黑龙江水产研究所 | Preparation method of ecological fish reef made of crop straw raw materials |
| CN114195560A (en) * | 2021-12-09 | 2022-03-18 | 海安普豪生物能源有限公司 | Method for co-producing fiber, biogas and bio-organic fertilizer by using agricultural straws |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108589393A (en) * | 2018-05-16 | 2018-09-28 | 潍坊德瑞生物科技有限公司 | A kind of grass environment-friendly pulping recovery process |
| CN112726266A (en) * | 2020-12-24 | 2021-04-30 | 东北农业大学 | Method for treating straw and paper pulp obtained by method |
| CN114164713A (en) * | 2021-12-03 | 2022-03-11 | 中国水产科学研究院黑龙江水产研究所 | Preparation method of ecological fish reef made of crop straw raw materials |
| CN114164713B (en) * | 2021-12-03 | 2022-11-04 | 中国水产科学研究院黑龙江水产研究所 | Preparation method of ecological fish reef made of crop straw raw materials |
| CN114195560A (en) * | 2021-12-09 | 2022-03-18 | 海安普豪生物能源有限公司 | Method for co-producing fiber, biogas and bio-organic fertilizer by using agricultural straws |
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