CN111570474A - Environment-friendly treatment and recycling method of areca residue - Google Patents
Environment-friendly treatment and recycling method of areca residue Download PDFInfo
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- CN111570474A CN111570474A CN202010421453.7A CN202010421453A CN111570474A CN 111570474 A CN111570474 A CN 111570474A CN 202010421453 A CN202010421453 A CN 202010421453A CN 111570474 A CN111570474 A CN 111570474A
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- pulp
- areca
- residue
- areca residue
- sieving
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000004064 recycling Methods 0.000 title claims abstract description 9
- 241000202755 Areca Species 0.000 title abstract description 67
- 238000007873 sieving Methods 0.000 claims abstract description 41
- 238000000227 grinding Methods 0.000 claims abstract description 38
- 239000000463 material Substances 0.000 claims abstract description 30
- 238000005096 rolling process Methods 0.000 claims abstract description 30
- 239000003814 drug Substances 0.000 claims abstract description 20
- 108090000790 Enzymes Proteins 0.000 claims abstract description 14
- 102000004190 Enzymes Human genes 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000002002 slurry Substances 0.000 claims abstract description 12
- 238000010009 beating Methods 0.000 claims abstract description 7
- 230000009286 beneficial effect Effects 0.000 claims abstract description 7
- 239000000835 fiber Substances 0.000 claims abstract description 7
- 238000007781 pre-processing Methods 0.000 claims abstract description 7
- 244000080767 Areca catechu Species 0.000 claims description 41
- 235000006226 Areca catechu Nutrition 0.000 claims description 29
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- 229940088598 enzyme Drugs 0.000 claims description 13
- 108010059820 Polygalacturonase Proteins 0.000 claims description 8
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 8
- 108010093305 exopolygalacturonase Proteins 0.000 claims description 8
- 239000004115 Sodium Silicate Substances 0.000 claims description 6
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 6
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 6
- 108010059892 Cellulase Proteins 0.000 claims description 5
- 229940106157 cellulase Drugs 0.000 claims description 5
- 229940059442 hemicellulase Drugs 0.000 claims description 5
- 108010002430 hemicellulase Proteins 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 4
- 229920001131 Pulp (paper) Polymers 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 claims 2
- PFTAWBLQPZVEMU-DZGCQCFKSA-N (+)-catechin Chemical group C1([C@H]2OC3=CC(O)=CC(O)=C3C[C@@H]2O)=CC=C(O)C(O)=C1 PFTAWBLQPZVEMU-DZGCQCFKSA-N 0.000 claims 1
- 239000000123 paper Substances 0.000 description 8
- 239000011148 porous material Substances 0.000 description 5
- 239000012535 impurity Substances 0.000 description 3
- 229920002488 Hemicellulose Polymers 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 239000010893 paper waste Substances 0.000 description 2
- 230000001055 chewing effect Effects 0.000 description 1
- 239000012792 core layer Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
- D21C3/26—Multistage processes
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
- D21C5/005—Treatment of cellulose-containing material with microorganisms or enzymes
-
- 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
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
- D21D5/02—Straining or screening the pulp
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Microbiology (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
Abstract
The invention discloses an environment-friendly treatment and recycling method of areca residue, which comprises the steps of sieving the areca residue for the first time; preprocessing, calculating the water content of the areca residue, removing the water content of the areca residue according to the weight of the areca residue to obtain the absolute dry amount of the areca residue, and adding biological enzyme into the sieved areca residue according to the absolute dry amount; thread rolling, namely, carrying out thread rolling on the areca residue mixed with the biological enzyme by a thread rolling machine to obtain a primary material, and adding a liquid medicine beneficial to fiber grinding and thread splitting in the thread rolling process; high-concentration grinding, namely performing first high-concentration grinding on the discharged material, and performing second high-concentration grinding to form slurry; sieving for the second time, and sieving the pulp to obtain coarse pulp and fine pulp respectively; wherein, the coarse pulp is repeatedly ground to the second sieving process so as to grind the coarse pulp into good pulp; wherein the beating degree of the good pulp is more than 20 DEG SR. The method of the invention changes the areca residue into slurry for paper making or other purposes, and provides a solution for the reutilization of the areca residue.
Description
Technical Field
The invention relates to the technical field of areca residue recycling, in particular to an environment-friendly treatment and recycling method of areca residue.
Background
Hunan is a big province of betel nut consumption, the annual sales volume is about 20-30 ten thousand tons, and the betel nut residues after chewing are basically in an untreated state, belong to the field of wet garbage, are discarded at will, harm the environment, have certain negative effects on city appearance and city appearance of cities, contain a large amount of cellulose and hemicellulose, and can be recycled.
Disclosure of Invention
The invention mainly aims to provide an environment-friendly treatment and recycling method of areca residue, and aims to solve the problem that the areca residue cannot be recycled in the prior art.
An environment-friendly treatment method of areca residue comprises the following steps:
sieving the areca residue for the first time;
preprocessing, calculating the water content of the areca residue, removing the water content of the areca residue according to the weight of the areca residue to obtain the absolute dry amount of the areca residue, and adding biological enzyme into the sieved areca residue according to the absolute dry amount;
thread rolling, namely, carrying out thread rolling on the areca residue mixed with the biological enzyme by a thread rolling machine to obtain a primary material, and adding a liquid medicine beneficial to fiber grinding and thread splitting in the thread rolling process;
high-concentration grinding, namely performing first high-concentration grinding on the primary material, and performing second high-concentration grinding to form slurry, wherein the solid content of the betel nut residues is 20-40%;
sieving for the second time, and sieving the pulp to obtain coarse pulp and fine pulp respectively; wherein, the coarse pulp is repeatedly ground to the second sieving process so as to grind the coarse pulp into good pulp; wherein the beating degree of the good pulp is more than 20 DEG SR.
Preferably, the first sieving step comprises:
sieving the areca residue through a swing sieve, wherein the aperture of a sieve hole of the swing sieve is 3-7 cm.
Preferably, the first high concentration milling step comprises:
the diameter of the initial material is less than or equal to 0.5 mm, and the length of the initial material is less than or equal to 20 mm.
Preferably, the second high-concentration grinding step comprises:
and fine grinding the primary material by a fine grinder to obtain the pulp.
Preferably, the second sieving step comprises:
and sieving the pulp by using a skip sieve to respectively obtain coarse pulp and fine pulp, wherein the aperture of a sieve hole of the skip sieve is 0.5 mm to 3 mm.
Preferably, the mass ratio of the biological enzyme to the oven-dried areca residue is 70 g to 180 g: 1 ton.
Preferably, the biological enzyme comprises at least one of cellulase, hemicellulase and pectinase.
Preferably, the liquid medicine includes at least one of a sodium hydroxide solution, a sodium silicate solution, and a sodium carbonate solution.
In order to achieve the purpose, the invention also provides a method for recycling the areca residue, and the accepted pulp obtained by the method for environmentally treating the areca residue is used as paper pulp for making paper.
Compared with the prior art, the invention has the following beneficial effects:
impurities (such as stones) in the betel nut residues are removed through first sieving, then pretreatment, thread rolling, high-concentration grinding and second sieving are sequentially carried out to prepare the betel nut residues into slurry, so that the betel nut residues are changed into the slurry for papermaking or other purposes, and a solution is provided for reutilization of the betel nut residues.
Detailed Description
The following examples are intended to illustrate the invention without further limiting its scope.
In order to solve the problems, the invention provides an environment-friendly treatment method of areca residue, which comprises the following steps:
s1, sieving the areca residue for the first time.
S2, preprocessing, calculating the water content of the areca residue, removing the water content of the areca residue according to the weight of the areca residue to obtain the absolute dry amount of the areca residue, and adding biological enzyme into the screened areca residue according to the absolute dry amount. The biological enzyme is added to accelerate the damage of intercellular linkage and the separation of substances in the cells, which is beneficial to the grinding and disintegration of areca-nut dregs into slurry.
And S3, thread rolling, namely, thread rolling is carried out on the areca nut dregs mixed with the biological enzyme through a thread rolling machine to obtain a primary material, and liquid medicine beneficial to fiber grinding and thread splitting is added in the thread rolling process. The betel nut residues are hard, and the betel nut residues are chewed into threads, so that the betel nut residues can be quickly twisted into threads by using a thread rolling machine. The liquid medicine can effectively accelerate the efficiency of high-concentration grinding.
And S4, high-consistency grinding, namely, carrying out first high-consistency grinding on the primary material, and then carrying out second high-consistency grinding to form slurry. And (5) carrying out high-concentration grinding twice to ensure the quality of the slurry.
S5, secondary screening, wherein the pulp is screened to obtain coarse pulp and fine pulp respectively; wherein, the coarse pulp is repeatedly ground to the second sieving process so as to grind the coarse pulp into good pulp; wherein the beating degree of the good pulp is more than 20 DEG SR. The coarse pulp is the bast fiber or the knot filtered from the pulp, and the bast fiber or the knot needs to be repeatedly ground for many times to enable the coarse pulp to be ground into good pulp, and the quality of paper made of the good pulp can be influenced if the bast fiber or the knot needs to be ground for many times.
Impurities (such as stones) in the betel nut residues are removed through first sieving, then pretreatment, high-concentration grinding and second sieving are sequentially carried out to pulp the betel nut residues, so that the betel nut residues are changed into pulp for papermaking or other purposes, and a solution is provided for reutilization of the betel nut residues.
Cellulose and hemicellulose in the betel nut residues are main components of papermaking pulp. The pulp raw materials in China always depend on imported waste paper, the price of the pulp material is always increased due to the problem of the shortage of the pulp material caused by the shortage of the imported waste paper, and the problem of the shortage of the pulp material can be alleviated by converting the betel nut residues into the pulp, so that the stability of the market price of the pulp material is facilitated.
Preferably, step S1 includes:
sieving the areca residue through a swing sieve, wherein the aperture of a sieve hole of the swing sieve is 3-7 cm. Is beneficial to sieving impurities (such as stones) in the medicine dregs.
Preferably, step S3 includes:
the diameter of the initial material is less than or equal to 0.5 mm, and the length of the initial material is less than or equal to 20 mm.
Preferably, step S4 further includes:
and fine grinding the primary material by a fine grinder to obtain the pulp.
Preferably, step S5 includes:
and sieving the pulp by using a skip sieve to respectively obtain coarse pulp and fine pulp, wherein the aperture of a sieve hole of the skip sieve is 0.5 mm to 3 mm.
Preferably, the mass ratio of the biological enzyme to the oven-dried areca residue is 70 g to 180 g: 1 ton.
Preferably, the biological enzyme comprises at least one of cellulase, hemicellulase and pectinase.
Preferably, the liquid medicine includes at least one of sodium hydroxide, sodium silicate and sodium carbonate.
Specifically, the mass ratio of the sodium hydroxide solution with the mass concentration of 0.5-2% to the oven-dried medicine residue is 200-350 kg: 1 ton; the mass ratio of the sodium silicate solution with the mass concentration of 0.5-2% to the oven-dried medicine residue is 200-350 kg: 1 ton; the mass ratio of the sodium carbonate solution with the mass concentration of 0.5-2% to the oven-dried medicine residue is 200-350 kg: 1 ton.
In order to achieve the purpose, the invention also provides a traditional Chinese medicine residue recycling method, and the good pulp obtained by the traditional Chinese medicine residue environment-friendly treatment method is used as paper pulp for papermaking.
Example 1
Sieving the areca residue for the first time by a swing sieve with the sieve pore size of 4 cm.
And (2) preprocessing, calculating the water content of the areca residue, subtracting the water content of the areca residue from the weight of the areca residue to obtain the absolute dry weight of the areca residue, adding 90 g of pectinase into each ton of the areca residue, and adding the pectinase into the areca residue.
And (3) thread rolling, namely, thread rolling is carried out on the areca residue mixed with the pectinase through a thread rolling machine until the areca residue becomes a strand silk with the diameter smaller than 1 mm and the length smaller than 20 mm to obtain a primary material, and 270 kg of sodium hydroxide liquid medicine with the mass concentration of 1.5% is added according to the absolute dry weight of each ton of areca residue through a liquid medicine pump in the thread rolling process.
And (3) high-concentration grinding, namely performing first high-concentration grinding on the primary material, and performing fine grinding on the primary material by using a fine grinder to obtain slurry, wherein the solid content of the betel nut residues is 20-40%.
And (2) sieving for the second time, sieving the pulp by using a skip sieve with the mesh opening of 1 mm to respectively obtain coarse pulp and fine pulp, repeating the process from high-concentration grinding to secondary sieving on the coarse pulp to grind the coarse pulp into fine pulp, wherein the beating degree of the fine pulp is greater than 20 DEG SR, and the fine pulp is added into the cardboard paper according to the proportion of 20% to obtain the cardboard paper meeting the national standard.
Example 2
Sieving the areca residue for the first time by a swing sieve with the aperture of the sieve pore of 5 cm.
And (2) preprocessing, calculating the water content of the areca residue, subtracting the water content of the areca residue from the weight of the areca residue to obtain the absolute dry weight of the areca residue, adding 120 g of cellulase according to the absolute dry weight of each ton of the areca residue, and adding pectinase into the areca residue.
And (3) thread rolling, namely, thread rolling is carried out on the areca residue mixed with the cellulase by a thread rolling machine until the areca residue becomes a strand silk with the diameter less than 1 mm and the length less than 20 mm to obtain a primary material, and 320 kg of sodium silicate solution liquid medicine with the mass concentration of 1% is added according to the absolute dry weight of each ton of areca residue by a liquid medicine pump in the thread rolling process.
And (3) high-concentration grinding, namely performing first high-concentration grinding on the primary material, and performing fine grinding on the primary material by using a fine grinder to obtain slurry, wherein the solid content of the betel nut residues is 20-40%.
And (2) sieving for the second time, sieving the pulp by using a skip sieve with the sieve pore diameter of 2 mm to respectively obtain coarse pulp and fine pulp, repeating the process from high-concentration grinding to secondary sieving on the coarse pulp to grind the coarse pulp into fine pulp, wherein the beating degree of the fine pulp is greater than 20 DEG SR, and the fine pulp is added into the corrugated paper core layer according to the proportion of 30% to obtain the corrugated paper meeting the national standard.
Example 3
Sieving the areca residue for the first time by a swing sieve with 6 cm of sieve pore diameter.
And (2) preprocessing, calculating the water content of the areca residue, subtracting the water content of the areca residue from the weight of the areca residue to obtain the absolute dry weight of the areca residue, adding 165 g of hemicellulase per ton of the areca residue, and adding pectinase into the areca residue.
And (3) thread rolling, namely, thread rolling is carried out on the areca residue mixed with the hemicellulase through a thread rolling machine until the areca residue becomes a strand with the diameter smaller than 1 mm and the length smaller than 20 mm to obtain a primary material, and 230 kg of sodium silicate solution liquid medicine with the mass concentration of 0.8% is added according to the absolute dry weight of each ton of areca residue through a liquid medicine pump in the thread rolling process.
And (3) high-concentration grinding, namely performing first high-concentration grinding on the primary material, and performing fine grinding on the primary material by using a fine grinder to obtain slurry, wherein the solid content of the betel nut residues is 20-40%.
And (2) sieving for the second time, sieving the pulp by using a skip sieve with the sieve pore diameter of 2.5 mm to respectively obtain coarse pulp and fine pulp, repeating the process from high-concentration grinding to secondary sieving on the coarse pulp to grind the coarse pulp into fine pulp, wherein the beating degree of the fine pulp is greater than 20 DEG SR, and the fine pulp is added into bobbin paper according to the proportion of 10% to obtain the bobbin paper meeting the national standard.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent modifications made by the present invention in the light of the present specification, or directly/indirectly applied to other related technical fields are included in the scope of the present invention.
Claims (9)
1. An environment-friendly treatment method of areca residue is characterized by comprising the following steps:
sieving the areca residue for the first time;
preprocessing, calculating the water content of the areca residue, removing the water content of the areca residue according to the weight of the areca residue to obtain the absolute dry amount of the areca residue, and adding biological enzyme into the sieved areca residue according to the absolute dry amount;
thread rolling, namely, carrying out thread rolling on the areca residue mixed with the biological enzyme by a thread rolling machine to obtain a primary material, and adding a liquid medicine beneficial to fiber grinding and thread splitting in the thread rolling process;
high-concentration grinding, namely performing first high-concentration grinding on the primary material, and performing second high-concentration grinding to form slurry, wherein the solid content of the betel nut residues is 20-40%;
sieving for the second time, and sieving the pulp to obtain coarse pulp and fine pulp respectively; wherein, the coarse pulp is repeatedly ground to the second sieving process so as to grind the coarse pulp into good pulp; wherein the beating degree of the good pulp is more than 20 DEG SR.
2. The method for environmentally friendly treating betel nut dregs according to claim 1, wherein the first sieving step comprises:
sieving the areca residue through a swing sieve, wherein the aperture of a sieve hole of the swing sieve is 3-7 cm.
3. The method for environmentally friendly treating betel nut dregs according to claim 1, wherein the diameter of the primary material is less than or equal to 0.5 mm, and the length of the primary material is less than or equal to 20 mm.
4. The environment-friendly treatment method for areca residue according to claim 3, wherein the second high concentration grinding step comprises:
and fine grinding the primary material by a fine grinder to obtain the pulp.
5. The method for environmentally friendly treating betel nut dregs according to claim 1, wherein the second sieving step comprises:
and sieving the pulp by using a skip sieve to respectively obtain coarse pulp and fine pulp, wherein the aperture of a sieve hole of the skip sieve is 0.5 mm to 3 mm.
6. The method for environmental protection and treatment of betel nut residues according to any one of claims 1 to 5, wherein the mass ratio of the bio-enzyme to the absolutely dry betel nut residues is 70 g to 180 g: 1 ton.
7. The method for environmentally friendly treating betel nut dregs according to any one of claims 1 to 5, wherein the biological enzyme comprises at least one of cellulase, hemicellulase and pectinase.
8. The method for environmental protection treatment of Areca catechu residue according to any one of claims 1-5, wherein the liquid medicine comprises at least one of sodium hydroxide solution, sodium silicate solution and sodium carbonate solution.
9. A method for recycling areca residue, which is characterized in that the accepted pulp obtained by the method for environmentally friendly treating areca residue of any one of claims 1-8 is used as paper pulp for making paper.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010421453.7A CN111570474A (en) | 2020-05-18 | 2020-05-18 | Environment-friendly treatment and recycling method of areca residue |
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| CN202010421453.7A CN111570474A (en) | 2020-05-18 | 2020-05-18 | Environment-friendly treatment and recycling method of areca residue |
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Cited By (2)
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| CN113679084A (en) * | 2021-08-19 | 2021-11-23 | 湖南伍子醉食品有限公司 | Method for preparing paper-making reconstituted tobacco by using betel nut flower base fibers |
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| CN112725917A (en) * | 2020-12-28 | 2021-04-30 | 海南华创槟榔研究院 | Preparation method of areca seed cellulose nanofibrils |
| CN112725917B (en) * | 2020-12-28 | 2023-07-04 | 海南华创槟榔研究院 | Preparation method of betel nut seed cellulose nanofibrils |
| CN113679084A (en) * | 2021-08-19 | 2021-11-23 | 湖南伍子醉食品有限公司 | Method for preparing paper-making reconstituted tobacco by using betel nut flower base fibers |
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