CN101358436A - Banana tree paper manufacture technique, slurry storage technique and sewage disposal technique thereof by soft chemistry method - Google Patents
Banana tree paper manufacture technique, slurry storage technique and sewage disposal technique thereof by soft chemistry method Download PDFInfo
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Abstract
The invention provides a banana tree paper making process, a pulp storage technology and a wastewater treatment technology with a soft chemistry method; the process comprises raw material collection, compression and cutting, crashing and fluffing, desliting, washing, blenching, jordaning, grinding, degumming or paper making; the pulp storage technology is as follows: a small amount of preservative is added into thick pulp to receive tumble-dry treatment; the paper making wastewater treatment is as follows: waste water and impurity removal; and the wastewater can be purified and reused. The method has the advantages of high efficiency and quickness, low raw material consumption, high yield, strong operability, high yield and good quality of paper product; the raw materials can be stored for a long time, stable supplied, nearly have no pollution to the environment, and have obvious economic benefit and environment benefit.
Description
Technical field
The invention belongs to pulp technology for making paper, more specifically relate to a kind of employing soft chemical method and carry out banana tree paper manufacture skill, slurry storing technology and sewage disposal technology thereof.
Background technology
Tradition paper arts demand high temperature adds alkaline boiling, can cause the destruction of the serious environmental pollution and the forest reserves.Utilizing discarded object banana tree to carry out papermaking can economize on resources, and reduces environmental pollution, and social agency is very obvious.Chinese patent ZL02115525.9, patent name " paper pulp made of banana tree and technology thereof ", its main technique is (1) raw material chopping making beating, and (2) slurry concentrates, and (3) add thermal bleaching, and come unstuck (4), (5) defibrination.Directly break into slurry after this raw materials technology chopping and need repeated multiple times, power consumption again consuming time; Adopt the ammonification thermophilic digestion can cause air and sewage pollution in the bleaching process; Not adding the fiber protective agent during directly time consumption and energy consumption and significant loss is big, yield is low during defibrination, and defibrination will greatly injure fiber, cause sheet paper products productive rate low quality poor.Patent CN200310105776.1, patent name " a kind of technology of making paper and paper products with banana fiber ", main technique is (1) selected raw material, (2) blank, (3) divide silk, and come unstuck (4), (5) making beating, (6) pressurized screen defibrination, (7) bleaching.This technology first raw material needs selected, can reduce raw-material utilization rate, and the consumption worker consumes power, increases production cost; The second, the making beating back is if directly carry out the pressurized screen defibrination, owing to the ratio that the centrotheca crude fibre is shared is excessive, build-up of pressure sieve explosion easily in the commercial process, must be through repeatedly just carrying out the pressurized screen defibrination behind the conventional defibrination, can cause the excessive and time consumption and energy consumption of significant loss thus, the low and high suitability for industrialized production that is not suitable for equally of production cost of yield; Three, do not add the fiber protective agent in the defibrination process and can cause a large amount of fibers destruction that is worn, the physical property that not only can influence finished paper also can cause productive rate low; Four, the sewage that produces in the production process is only directly discharged through simple precipitation, can cause very big pollution.More than two technology all do not relate to the slurry storing technology, and must guarantee that as actual industrial production raw material supply is successive, and banana has been tapped dull and rush season.Therefore must solve banana slurry storing technology could guarantee factory's ordinary production.Though above-mentioned two technology are mentioned whole paper-making process and do not added highly basic and carry out boiling, the sewage pH value that is produced still has a large amount of sewage and produces near neutral in the pulp washing process, and unprocessed direct discharge all can cause serious injury to environment.
Summary of the invention
The present invention seeks in the defibrination process, to exist that production efficiency is low, material loss reaches problems such as sewage pollution greatly at existing technology, provide a kind of employing soft chemical method to carry out banana tree paper manufacture skill, slurry storing technology and sewage disposal technology thereof, the method efficient quick, material loss is low, yield is high, workable, sheet paper products productive rate high-quality is good, raw material can store for a long time, supply is stable, and almost environmentally safe has remarkable economic efficiency and environmental benefit.
Employing soft chemical method of the present invention carries out the banana tree paper manufacture skill, and it is characterized in that: described technology is:
1) gathers raw material;
2) squeezing and blank: raw material is squeezed out 40-60% to water and is cut into 1-5 centimetre equal length by roller press;
3) fragmentation is discongested: the raw material behind the blank is sent into crusher in crushing, and through water under high pressure fiber is discongested out, and forms slurry just;
4) desilting: first slurry removes sand through the desilting ditch;
5) washing: first slurry is sent into centrifugal pond and is washed after the desilting ditch removes sand, remove mud with decontamination;
6) bleaching: the chlorine bleaches that the 0.3%-10% of siccative weight is amounted in the slurry adding after the washing, carry out rapid bleach by water back;
7) defibrination: the slurry after the bleaching adds the fiber protective agent of the 0.1%-6% amount to siccative weight, sends into fiberizer and carries out preliminary grinding;
8) correct grinding: the slurry after the preliminary grinding still contains a large amount of crude fibres, is finish-ground to the slurry of required beating degree after through vibrosieve crude fibre being separated again;
9) come unstuck: the degumming agent that the slurry behind the correct grinding adds the 0.02%-7% the amount to siccative weight processing of coming unstuck;
10) papermaking: make various paper products through the slurry after coming unstuck.
Employing soft chemical method of the present invention carries out the slurry storing technology in the banana tree paper manufacture skill, it is characterized in that: described storing technology is: add a spot of preservative agent and dry storing then in the underflow material, described preservative agent addition is to amount to the 0.01%-4% of siccative weight.
Employing soft chemical method of the present invention carries out the technology of treatment of papermaking wastewater in the banana tree paper manufacture skill, and it is characterized in that: described papermaking wastewater treatment step is:
1) the sewage decontamination is handled: utilize the remaining waste liquid in the bleaching process that the sewage that produces in the paper-making process is carried out the decontamination decolouring; Bleaching the sewage that produces in remaining waste liquid and the production process 1 to 2 to 1 to 10 mixes and can become clear to sewage by volume.
2) the sewage impurity elimination is handled: insert 1 to 3 meter high industrial residue with strong absorption dirt ability such as cinder in the water purifying tank and carry out impurity elimination and handle, adsorb the impurity elimination operation through 3 to 5 roads and can obtain clean water.
Remarkable advantage of the present invention:
A) the present invention adopts and add bleaching agent in bleaching process, and carries out rapid bleach by water back, has effectively avoided employing ammonification thermophilic digestion can cause air and sewage pollution, bleaches quick, effective;
B) the present invention improves refining process, is finish-ground to the slurry of required beating degree after centrotheca is separated crude fibre through vibrosieve earlier again, can at utmost improve product yield, product quality and production efficiency like this.If centrotheca directly carries out the pressurized screen defibrination after pulling an oar, owing to the ratio that the centrotheca crude fibre is shared is excessive, build-up of pressure sieve explosion easily must can cause the excessive and time consumption and energy consumption of significant loss thus through repeatedly just carrying out the pressurized screen defibrination behind the conventional defibrination in the commercial process.
C) the present invention adds the fiber protective agent in the defibrination process, has effectively prevented the injury of fiber, has improved the productive rate and the quality of sheet paper products significantly.
A) in the actual industrial production process, banana has been tapped dull and rush season, so raw material storages is the practical problem that must solve, and can't normally carry out otherwise produce.Because banana tree moisture is very big and rotten easily, directly storage line is obstructed, make fiber if day also can cause the fiber corruption surplus depositing ten without fully air-dry, if the air-dry storing cost that can cause again is too high fully, the technology of the present invention adopts and to add a spot of preservative agent drain storing then in the underflow material, can guarantee that slurry is deposited to never degenerate in 3-4 month, has fully guaranteed the source of paper making raw material, guaranteed to produce and to have carried out continuously, reduced cost of material.
B) the present invention handles the sewage of papermaking through the decontamination impurity elimination, and purifies the back repeated use, has both solved the pollution problem that direct discharging causes, even can reach the zero-emission of sewage, has significant environmental benefit, has saved water resource again, and production cost reduces.
C) method efficient quick of the present invention, material loss is low, yield is high, workable, sheet paper products productive rate high-quality is good, raw material can store for a long time, supply is stable, almost environmentally safe has remarkable economic efficiency and environmental benefit.
The specific embodiment
Concrete technology of the present invention comprises:
1) gather raw material: the banana tree that felling is no more than 5 days, leaf and tree bar raw material are as raw material.
2) squeezing and blank: raw material is squeezed out 40-60% to water and is cut into 1-5 centimetre equal length by roller press;
3) fragmentation is discongested: the raw material behind the blank is sent into crusher in crushing, and through water under high pressure fiber is discongested out, and forms slurry just;
4) desilting: first slurry removes sand through the desilting ditch;
5) washing: first slurry is sent into centrifugal pond and is washed after the desilting ditch removes sand, remove mud with decontamination;
6) bleaching: the chlorine bleaches that the 0.3%-10% of siccative weight is amounted in the slurry adding after the washing, carry out rapid bleach by water back;
7) defibrination: the slurry after the bleaching adds the fiber protective agent of the 0.1%-6% amount to siccative weight, sends into fiberizer and carries out preliminary grinding;
8) correct grinding: the slurry after the preliminary grinding still contains a large amount of crude fibres, is finish-ground to the slurry of required beating degree after through vibrosieve crude fibre being separated again;
9) come unstuck: the degumming agent that the slurry behind the correct grinding adds the 0.02%-7% the amount to siccative weight processing of coming unstuck;
10) papermaking: make various paper products through the slurry after coming unstuck.
Described chlorine bleaches is a kind of in clorox, sodium chlorate or the chlorine dioxide.
One or more mixtures that described fiber protective agent is organic acid sodium, potassium, aluminium, magnesium or calcium salt, the soluble in water and alcohol of acylate, its molecular weight are 100 to 50,000 all to can be used as the used fiber protective agent of the present invention.
Described degumming agent is a kind of in propionic acid, oxalic acid or the salicylic acid.
The present invention adopts soft chemical method to carry out slurry storing technology in the banana tree paper manufacture skill: add a spot of preservative agent and dry storing then in the underflow material, described preservative agent addition is to amount to the 0.01%-4% of siccative weight, and described drying process is: the slurry that added preservative agent is extracted water through squeezer; Described preservative agent is one or more mixing in Sodium Benzoate, P-hydroxybenzoic acid fat, propionate, the sodium Diacetate.
The papermaking wastewater treatment step is:
1) the sewage decontamination is handled: utilize the remaining waste liquid in the bleaching process that the sewage that produces in the paper-making process is carried out the decontamination decolouring; Bleaching the sewage that produces in remaining waste liquid and the production process 1 to 2 to 1 to 10 mixes and can become clear to sewage by volume;
2) the sewage impurity elimination is handled: insert 1 to the 3 meter high industrial residue with strong absorption dirt ability in the water purifying tank and carry out impurity elimination and handle, adsorb the impurity elimination operation through 3 to 5 roads and can obtain clean water.
To feed the water of water purifying tank behind water purification through the sewage after the decolouring and return and recycle, reach zero-emission.Below be several specific embodiment of the present invention, but the present invention is not limited only to this.
Embodiment 1
(1), raw material: the banana tree that felling is no more than 5 days, leaf and tree bar raw material
(2), squeezing and blank: raw material is squeezed out 40% and be cut into 1 centimeter equal length to water by roller press;
(3), fragmentation is discongested: send into crusher in crushing by conveyer belt behind the blank, and through water under high pressure fiber is discongested out, form slurry just;
(4), desilting: first slurry removes sand through the desilting ditch;
(5), washing: first slurry is sent into centrifugal pond and is washed after the desilting ditch removes sand, remove mud with decontamination;
(6), bleaching: 0.3% the clorox that siccative weight is amounted in the slurry adding after the washing, carry out rapid bleach by water back;
(7), defibrination: the slurry after the bleaching add amount to siccative weight 0.1% linoleic acid sodium as the fiber protective agent, send into fiberizer and carry out preliminary grinding;
(8), correct grinding: still contain a large amount of crude fibres after the preliminary grinding, be finish-ground to the slurry of required beating degree after through vibrosieve crude fibre being separated again;
(9), come unstuck: the slurry behind the correct grinding adds the processing of coming unstuck of 0.02% the propionic acid amount to siccative weight,
(10), papermaking: make various paper products through the slurry after coming unstuck.
The slurry storing technology: add 0.01% the Sodium Benzoate amount to siccative weight and dry storing then in the underflow material, the drying process is: the slurry that added preservative agent is passed through squeezer water is extracted.
The papermaking wastewater treatment step is:
1) the sewage decontamination is handled: utilize the remaining waste liquid in the bleaching process that the sewage that produces in the paper-making process is carried out the decontamination decolouring; Bleaching the sewage that produces in remaining waste liquid and the production process 1 to 2 mixes and can become clear to sewage by volume.
2) the sewage impurity elimination is handled: insert 1 to 3 meter high industrial residue with strong absorption dirt ability such as cinder in the water purifying tank and carry out impurity elimination and handle, adsorb the impurity elimination operation through 3 roads and can obtain clean water.
Describedly can feed the water of water purifying tank behind water purification to the sewage after decolouring and return and recycle, reach zero-emission.
Embodiment 2
(1), raw material: the banana tree that felling is no more than 5 days, leaf and tree bar raw material
(2), squeezing and blank: raw material is squeezed out 60% and be cut into 5 centimeters equal lengths to water by roller press;
(3), fragmentation is discongested: send into crusher in crushing by conveyer belt behind the blank, and through water under high pressure fiber is discongested out, form slurry just;
(4), desilting: first slurry removes sand through the desilting ditch;
(5), washing: first slurry is sent into centrifugal pond and is washed after the desilting ditch removes sand, remove mud with decontamination;
(6), bleaching: 10% the sodium chlorate that siccative weight is amounted in the slurry adding after the washing, carry out rapid bleach by water back;
(7), defibrination: the slurry after the bleaching adds 6% the sodium arachidonate amount to siccative weight and linoleic acid potassium (both mass ratioes are 1 to 1) as the fiber protective agent, sends into fiberizer and carries out preliminary grinding;
(8), correct grinding: still contain a large amount of crude fibres after the preliminary grinding, be finish-ground to the slurry of required beating degree after through vibrosieve crude fibre being separated again;
(9), come unstuck: the slurry behind the correct grinding adds the processing of coming unstuck of 7% the oxalic acid amount to siccative weight.
(10), papermaking: make various paper products through the slurry after coming unstuck.
The slurry storing technology: add 4% the P-hydroxybenzoic acid fat amount to siccative weight and dry storing then in the underflow material, described drying process is: the slurry that added preservative agent is passed through squeezer water is extracted;
The papermaking wastewater treatment step is:
1) the sewage decontamination is handled: utilize the remaining waste liquid in the bleaching process that the sewage that produces in the paper-making process is carried out the decontamination decolouring; Bleaching the sewage that produces in remaining waste liquid and the production process 1 to 10 mixes and can become clear to sewage by volume.
2) the sewage impurity elimination is handled: insert the industrial residue of the strong absorption dirt ability of 3 meters high have such as cinder in the water purifying tank and carry out impurity elimination and handle, adsorb the impurity elimination operation through 5 roads and can obtain clean water.
Describedly can feed the water of water purifying tank behind water purification to the sewage after decolouring and return and recycle, reach zero-emission.
Embodiment 3
(1), raw material: the banana tree that felling is no more than 5 days, leaf and tree bar raw material
(2), squeezing and blank: raw material is squeezed out 45% and be cut into 2 centimeters equal lengths to water by roller press;
(3), fragmentation is discongested: send into crusher in crushing by conveyer belt behind the blank, and through water under high pressure fiber is discongested out, form slurry just;
(4), desilting: first slurry removes sand through the desilting ditch;
(5), washing: first slurry is sent into centrifugal pond and is washed after the desilting ditch removes sand, remove mud with decontamination;
(6), bleaching: 1% the chlorine dioxide that siccative weight is amounted in the slurry adding after the washing, carry out rapid bleach by water back;
(7), defibrination: the slurry after the bleaching add amount to siccative weight 1% sodium palmitate as the fiber protective agent, send into fiberizer and carry out preliminary grinding;
(8), correct grinding: still contain a large amount of crude fibres after the preliminary grinding, be finish-ground to the slurry of required beating degree after through vibrosieve crude fibre being separated again;
(9), come unstuck: the slurry behind the correct grinding adds the processing of coming unstuck of 2% the salicylic acid amount to siccative weight.
(10), papermaking: make various paper products through the slurry after coming unstuck.
The slurry storing technology: add 1% the propionate amount to siccative weight and dry storing then in the underflow material, described drying process is: the slurry that added preservative agent is passed through squeezer water is extracted.
The papermaking wastewater treatment step is:
1) the sewage decontamination is handled: utilize the remaining waste liquid in the bleaching process that the sewage that produces in the paper-making process is carried out the decontamination decolouring; Bleaching the sewage that produces in remaining waste liquid and the production process 1 to 4 mixes and can become clear to sewage by volume.
2) the sewage impurity elimination is handled: insert the industrial residue of the strong absorption dirt ability of 1.5 meters high have such as cinder in the water purifying tank and carry out impurity elimination and handle, adsorb the impurity elimination operation through 4 roads and can obtain clean water.
Describedly can feed the water of water purifying tank behind water purification to the sewage after decolouring and return and recycle, reach zero-emission.
Embodiment 4
(1), raw material: the banana tree that felling is no more than 5 days, leaf and tree bar raw material
(2), squeezing and blank: raw material is squeezed out 50% and be cut into 3 centimeters equal lengths to water by roller press;
(3), fragmentation is discongested: send into crusher in crushing by conveyer belt behind the blank, and through water under high pressure fiber is discongested out, form slurry just;
(4), desilting: first slurry removes sand through the desilting ditch;
(5), washing: first slurry is sent into centrifugal pond and is washed after the desilting ditch removes sand, remove mud with decontamination;
(6), bleaching: 5% the sodium chlorate that siccative weight is amounted in the slurry adding after the washing, carry out rapid bleach by water back;
(7), defibrination: the slurry after the bleaching add amount to siccative weight 3% potassium oleate as the fiber protective agent, send into fiberizer and carry out preliminary grinding;
(8), correct grinding: still contain a large amount of crude fibres after the preliminary grinding, be finish-ground to the slurry of required beating degree after through vibrosieve crude fibre being separated again;
(9), come unstuck: the slurry behind the correct grinding adds the processing of coming unstuck of 4% the oxalic acid amount to siccative weight.
(10), papermaking: make various paper products through the slurry after coming unstuck.
The slurry storing technology: add 2% the sodium Diacetate amount to siccative weight and dry storing then in the underflow material, described drying process is: the slurry that added preservative agent is passed through squeezer water is extracted.
The papermaking wastewater treatment step is:
1) the sewage decontamination is handled: utilize the remaining waste liquid in the bleaching process that the sewage that produces in the paper-making process is carried out the decontamination decolouring; Bleaching the sewage that produces in remaining waste liquid and the production process 1 to 2 to 1 to 10 mixes and can become clear to sewage by volume.
2) the sewage impurity elimination is handled: insert the industrial residue of the strong absorption dirt ability of 2 meters high have such as cinder in the water purifying tank and carry out impurity elimination and handle, adsorb the impurity elimination operation through 4 roads and can obtain clean water.
Describedly can feed the water of water purifying tank behind water purification to the sewage after decolouring and return and recycle, reach zero-emission.
Embodiment 5
(1), raw material: the banana tree that felling is no more than 5 days, leaf and tree bar raw material
(2), squeezing and blank: raw material is squeezed out 55% and be cut into 4 centimeters equal lengths to water by roller press;
(3), fragmentation is discongested: send into crusher in crushing by conveyer belt behind the blank, and through water under high pressure fiber is discongested out, form slurry just;
(4), desilting: first slurry removes sand through the desilting ditch;
(5), washing: first slurry is sent into centrifugal pond and is washed after the desilting ditch removes sand, remove mud with decontamination;
(6), bleaching: 9% the sodium chlorate that siccative weight is amounted in the slurry adding after the washing, carry out rapid bleach by water back;
(7), defibrination: the slurry after the bleaching add amount to siccative weight 5% magnesium tartrate as the fiber protective agent, send into fiberizer and carry out preliminary grinding;
(8), correct grinding: still contain a large amount of crude fibres after the preliminary grinding, be finish-ground to the slurry of required beating degree after through vibrosieve crude fibre being separated again;
(9), come unstuck: the slurry behind the correct grinding adds the processing of coming unstuck of 6% the salicylic acid amount to siccative weight.
(10), papermaking: make various paper products through the slurry after coming unstuck.
The slurry storing technology: add 3% propionate and the sodium Diacetate (by mass ratio 1 to 1 proportioning) amount to siccative weight and dry storing then in the underflow material, described drying process is: the slurry that added preservative agent is passed through squeezer water is extracted.
The papermaking wastewater treatment step is:
1) the sewage decontamination is handled: utilize the remaining waste liquid in the bleaching process that the sewage that produces in the paper-making process is carried out the decontamination decolouring; Bleaching the sewage that produces in remaining waste liquid and the production process 1 to 5 to 1 to 10 mixes and can become clear to sewage by volume.
2) the sewage impurity elimination is handled: insert 1 to 3 meter high industrial residue with strong absorption dirt ability such as cinder in the water purifying tank and carry out impurity elimination and handle, adsorb the impurity elimination operation through 3 to 5 roads and can obtain clean water.
Describedly can feed the water of water purifying tank behind water purification to the sewage after decolouring and return and recycle, reach zero-emission.
Claims (9)
1. one kind is adopted soft chemical method to carry out the banana tree paper manufacture skill, and it is characterized in that: described technology is:
1) gathers raw material;
2) squeezing and blank: raw material is squeezed out 40-60% to water and is cut into 1-5 centimetre equal length by roller press;
3) fragmentation is discongested: the raw material behind the blank is sent into crusher in crushing, and through water under high pressure fiber is discongested out, and forms slurry just;
4) desilting: first slurry removes sand through the desilting ditch;
5) washing: first slurry is sent into centrifugal pond and is washed after the desilting ditch removes sand, remove mud with decontamination;
6) bleaching: the chlorine bleaches that the 0.3%-10% of siccative weight is amounted in the slurry adding after the washing, carry out rapid bleach by water back;
7) defibrination: the slurry after the bleaching adds the fiber protective agent of the 0.1%-6% amount to siccative weight, sends into fiberizer and carries out preliminary grinding;
8) correct grinding: the slurry after the preliminary grinding still contains a large amount of crude fibres, is finish-ground to the slurry of required beating degree after through vibrosieve crude fibre being separated again;
9) come unstuck: the degumming agent that the slurry behind the correct grinding adds the 0.02%-7% the amount to siccative weight processing of coming unstuck;
10) papermaking: make various paper products through the slurry after coming unstuck.
2. employing soft chemical method according to claim 1 carries out the banana tree paper manufacture skill, and it is characterized in that: the collection of described raw material is: the banana tree that felling is no more than 5 days, leaf and tree bar raw material are as raw material.
3. employing soft chemical method according to claim 1 carries out banana tree paper manufacture skill, it is characterized in that: described chlorine bleaches is a kind of in clorox, sodium chlorate or the chlorine dioxide.
4. employing soft chemical method according to claim 1 carries out the banana tree paper manufacture skill; it is characterized in that: one or more mixtures that described fiber protective agent is organic acid sodium, potassium, aluminium, magnesium or calcium salt; soluble in water and the alcohol of described acylate, its molecular weight are 100 to 50,000.
5. employing soft chemical method according to claim 1 carries out banana tree paper manufacture skill, it is characterized in that: described degumming agent is a kind of in propionic acid, oxalic acid or the salicylic acid.
6. one kind is carried out slurry storing technology in the banana tree paper manufacture skill as claim 1,2,3,4 or 5 described employing soft chemical methods, it is characterized in that: described storing technology is: add a spot of preservative agent and dry storing then in the underflow material, described preservative agent addition is to amount to the 0.01%-4% of siccative weight.
7. employing soft chemical method according to claim 6 carries out the slurry storing technology in the banana tree paper manufacture skill, and it is characterized in that: described drying is: the slurry that added preservative agent is extracted water through squeezer; Described preservative agent is one or more mixing in Sodium Benzoate, P-hydroxybenzoic acid fat, propionate, the sodium Diacetate.
8. one kind is carried out technology of treatment of papermaking wastewater in the banana tree paper manufacture skill as claim 1,2,3,4 or 5 described employing soft chemical methods, and it is characterized in that: described papermaking wastewater treatment step is:
1) the sewage decontamination is handled: utilize the remaining waste liquid in the bleaching process that the sewage that produces in the paper-making process is carried out the decontamination decolouring; Bleaching the sewage that produces in remaining waste liquid and the production process 1 to 2 to 1 to 10 mixes and can become clear to sewage by volume;
2) the sewage impurity elimination is handled: insert 1 to the 3 meter high industrial residue with strong absorption dirt ability in the water purifying tank and carry out impurity elimination and handle, adsorb the impurity elimination operation through 3 to 5 roads and can obtain clean water.
9. employing soft chemical method according to claim 8 carries out the technology of treatment of papermaking wastewater in the banana tree paper manufacture skill, it is characterized in that: the described water of the feeding water purifying tank of sewage after decolouring behind water purification is returned recycles, and reaches zero-emission.
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CN101555668B (en) * | 2009-05-19 | 2010-10-13 | 黄润燕 | Paper making method taking canes, leaves and fruit stems of banana tree as raw materials |
CN104947495A (en) * | 2015-05-28 | 2015-09-30 | 姚婷婷 | Preparation method of paper for industry |
CN109695170A (en) * | 2019-03-11 | 2019-04-30 | 樊士英 | A kind of technique of activity legal system pulping |
CN110219192A (en) * | 2019-06-13 | 2019-09-10 | 梅州市环源再生资源开发利用有限公司 | A kind of method of rapidly extracting plant fiber production paper pulp |
CN110219192B (en) * | 2019-06-13 | 2020-09-25 | 梅州市环源再生资源开发利用有限公司 | Method for producing paper pulp by quickly extracting plant fibers |
CN110644273A (en) * | 2019-09-03 | 2020-01-03 | 中山市茂林绿叶生物科技有限公司 | Production process of biomass fiber forming material |
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