CN108999032A - A kind of preparation method of modified plant fibers filter paper - Google Patents
A kind of preparation method of modified plant fibers filter paper Download PDFInfo
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- CN108999032A CN108999032A CN201811046208.1A CN201811046208A CN108999032A CN 108999032 A CN108999032 A CN 108999032A CN 201811046208 A CN201811046208 A CN 201811046208A CN 108999032 A CN108999032 A CN 108999032A
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- filter paper
- modified plant
- plant fibers
- solution
- wood pulp
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/08—Filter paper
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
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Abstract
The invention discloses a kind of preparation methods of modified plant fibers filter paper, first by FeCl3·6H2O solution and AgNO3Solution is uniformly mixed with wood pulp, with NaBH4As reducing agent, the nano silver and nano zero valence iron for generating reaction are adsorbed in situ on the wood pulp cellulose in wood pulp, then by manufacturing paper with pulp, squeezing, being dried to obtain modified plant fibers filter paper, again by the hydrolysis of ethyl orthosilicate on modified plant fibers filter paper in-situ deposition nano-silica film layer, finally obtain modified plant fibers filter paper.It is preparation method economy of the invention, environmental protection, without secondary pollution, and processing method is simple, and filter paper obtained is high to the treatment effeciency of waste water, can also repeatedly use.
Description
Technical field
The present invention relates to filtering material technical field more particularly to a kind of preparation methods of modified plant fibers filter paper.
Background technique
With the improvement of people ' s living standards and the rapid development of industry, more and more sanitary wastewaters and industrial wastewater
It is discharged into water body environment, causes water pollution more serious.China is the country of serious water shortage, and the improvement of water pollution is current outstanding
It is important.Traditional water-purifying material is expensive, is easy to cause secondary pollution, it is difficult to meet wanting for growing water process
It asks.Economic, efficient, without secondary pollution waste water control method is found, the hot spot of waste water control is become.
Plant fiber filter paper refers to that with wood pulp, cotton linter pulp, jute pulp, reed pulp, straw pulp etc. be filter paper made of raw material, master
Wanting raw material is cellulose, has many advantages, such as resourceful, biodegradable, nontoxic and pollution-free, can satisfy material for water treatment valence
Lattice are cheap, environment-friendly degradable demand.201711088365.4 a kind of preparation method of multifunctional modification filter paper is disclosed, with general
Logical neutrality filter paper or quantitative filter paper are substrate, pass through polyethyleneimine ammonification, glutaraldehyde cross-linking and in-situ reducing nano silver particles
Three steps, obtained multifunctional modification filter paper can filter out lot of trace heavy metal ion in water, kill pathogenic microorganism.
201711386965.9 disclosing a kind of heavy metal ion filter paper and preparation method thereof, calcium silicates is first supported on fiber in situ
On, filter paper is then manufactured paper with pulp into, the ability for making it have absorption retention heavy metal ions in wastewater can be removed by commonly filtering
Heavy metal in waste water.But these methods, which often have that processing technology is complicated, treatment effeciency is low, reusability is poor etc., asks
Topic.
Summary of the invention
The object of the invention is in order to provide a kind of preparation method of modified plant fibers filter paper, this method economy, ring
It protects, is without secondary pollution, and processing method is simple, filter paper obtained is high to the treatment effeciency of waste water, can also repeatedly use.
A kind of preparation method of modified plant fibers filter paper, comprising the following steps:
(1) by wood pulp, on beater then sufficiently mashing adjusts concentration to 1- until beating degree is 70-85 ° of SR
1.5%, obtain wood pulp；
(2) FeCl for being equivalent to wood pulp quality 5-10% is added into the wood pulp3·6H2O solution and 3-
5% AgNO33-5h is sufficiently stirred in solution, is then added under the conditions of inert gas shielding and is equivalent to wood pulp quality 40-
50% NaBH4Solution is stirred to react 1-2h, obtains modified filter paper slurry；
(3) it is added into the modification filter paper slurry and is equivalent to modified filter paper slurry oven dry stock quality 0.1-0.5%'s
The drying strengthening agent MF of wet strength agent PAE and 0.5-1%, by manufacturing paper with pulp, squeezing, being dried to obtain modified plant fibers filter paper base paper；
(4) first by ammonium hydroxide, dehydrated alcohol and water (1-2) in mass ratio: (40-50): (5-10) is mixed
Liquid, then the modified plant fibers filter paper base paper is impregnated in mixed liquor, it is then slowly added dropwise under agitation quite
In the ethyl orthosilicate of the mixed liquor quality 3-5%, first vacuum impregnation 0.5-1h after being added dropwise, then normal pressure stands 5-
10h obtains modified plant fibers filter paper after washing, drying.
The FeCl3·6H2O solution is 0.03-0.05mol/L, AgNO3Solution is 0.03-0.05mol/L, NaBH4It is molten
Liquid is 0.05-0.1mol/L.
The modified plant fibers filter paper base paper is 150-250g/m2。
The mass ratio of the modified plant fibers filter paper base paper and mixed liquor is 1:(5-10).
The vacuum-impregnated condition is-(0.02-0.04) MPa.
Beneficial effects of the present invention are as follows:
The present invention is first by FeCl3·6H2O solution and AgNO3Solution is uniformly mixed with wood pulp, with NaBH4As reduction
Agent, the nano silver and nano zero valence iron for generating reaction are adsorbed in situ on the wood pulp cellulose in wood pulp, then by copying
It makes, squeeze, being dried to obtain modified plant fibers filter paper, then is former on modified plant fibers filter paper by the hydrolysis of ethyl orthosilicate
Position deposition nano-silica film layer, finally obtains modified plant fibers filter paper.The present invention passes through uniform on plant fiber, high
Effect ground loading nano silvery, nano zero valence iron, significantly improve the bactericidal property of plant fiber filter paper and go removing heavy metals from
The ability of son, organic pollutant；And nano-silica is deposited by the plant fibre surface after loading nano silvery, nano zero valence iron
SiClx film layer had not only inhibited the oxidation of nano silver, nano zero valence iron, but also can delay the degradation of plant fiber, to extend plant
The service life of fiber filter paper improves its reuse rate.It is preparation method economy of the invention, environmental protection, without secondary pollution, and
Processing method is simple, and filter paper obtained is high to the treatment effeciency of waste water, can also repeatedly use, with higher to apply valence
Value.
Specific embodiment
Embodiment 1
A kind of preparation method of modified plant fibers filter paper, comprising the following steps:
(1) by wood pulp, sufficiently mashing is until beating degree is 70 ° of SR on beater, and then adjusting concentration obtains wood to 1%
Starch slurry；
(2) 3h that is sufficiently stirred for being equivalent to wood pulp quality 5% is added into the wood pulp, then in indifferent gas
The NaBH for being equivalent to wood pulp quality 40% is added under body protective condition4Solution is stirred to react 1h, obtains modified filter paper slurry；
(3) it is added into the modification filter paper slurry and is equivalent to the wet strong of modified filter paper slurry oven dry stock quality 0.1%
The drying strengthening agent MF of agent PAE and 0.5%, by manufacturing paper with pulp, squeezing, being dried to obtain modified plant fibers filter paper base paper；
(4) first ammonium hydroxide, dehydrated alcohol and water 1:40:5 in mass ratio are uniformly mixed and obtain mixed liquor, then described is changed
Property plant fiber filter paper base paper is impregnated in mixed liquor, is then slowly added dropwise under agitation and is equivalent to the mixed liquor quality
3% ethyl orthosilicate, first vacuum impregnation 0.5h after being added dropwise, then normal pressure stands 5h, and modified plant is obtained after washing, drying
Fibres filter paper.
The FeCl3·6H2O solution is 0.03mol/L, AgNO3Solution is 0.03mol/L, NaBH4Solution is
0.05mol/L。
The modified plant fibers filter paper base paper is 150g/m2。
The mass ratio of the modified plant fibers filter paper base paper and mixed liquor is 1:5.
The vacuum-impregnated condition is -0.02MPa.
Embodiment 2
(1) by wood pulp, sufficiently mashing is until beating degree is 70 ° of SR on beater, and then adjusting concentration is obtained to 1-1.5%
To wood pulp；
(2) FeCl for being equivalent to wood pulp quality 5% is added into the wood pulp3·6H2O solution and 5%
AgNO33h is sufficiently stirred in solution, is then added under the conditions of inert gas shielding and is equivalent to wood pulp quality 40-50%'s
NaBH4Solution is stirred to react 1h, obtains modified filter paper slurry；
(3) it is added into the modification filter paper slurry and is equivalent to the wet strong of modified filter paper slurry oven dry stock quality 0.1%
The drying strengthening agent MF of agent PAE and 0.5%, by manufacturing paper with pulp, squeezing, being dried to obtain modified plant fibers filter paper base paper；
(4) first ammonium hydroxide, dehydrated alcohol and water 1:40:5 in mass ratio are uniformly mixed and obtain mixed liquor, then described is changed
Property plant fiber filter paper base paper is impregnated in mixed liquor, is then slowly added dropwise under agitation and is equivalent to the mixed liquor quality
3% ethyl orthosilicate, first vacuum impregnation 0.5h after being added dropwise, then normal pressure stands 5-10h, is changed after washing, drying
Property plant fiber filter paper.
The FeCl3·6H2O solution is 0.05mol/L, AgNO3Solution is 0.05mol/L, NaBH4Solution is 0.1mol/
L。
The modified plant fibers filter paper base paper is 150g/m2。
The mass ratio of the modified plant fibers filter paper base paper and mixed liquor is 1:5.
The vacuum-impregnated condition is -0.02MPa.
Embodiment 3
(1) by wood pulp, sufficiently mashing is until beating degree is 85 ° of SR on beater, and then adjusting concentration is obtained to 1-1.5%
To wood pulp；
(2) FeCl for being equivalent to wood pulp quality 10% is added into the wood pulp3·6H2O solution and 5%
AgNO35h is sufficiently stirred in solution, is then added under the conditions of inert gas shielding and is equivalent to wood pulp quality 40-50%'s
NaBH4Solution is stirred to react 2h, obtains modified filter paper slurry；
(3) it is added into the modification filter paper slurry and is equivalent to the wet strong of modified filter paper slurry oven dry stock quality 0.5%
The drying strengthening agent MF of agent PAE and 1%, by manufacturing paper with pulp, squeezing, being dried to obtain modified plant fibers filter paper base paper；
(4) first ammonium hydroxide, dehydrated alcohol and water 1:50:10 in mass ratio are uniformly mixed and obtain mixed liquor, then will be described
Modified plant fibers filter paper base paper is impregnated in mixed liquor, is then slowly added dropwise under agitation and is equivalent to the mixed liquor matter
The ethyl orthosilicate for measuring 5%, first vacuum impregnation 1h after being added dropwise, then normal pressure stands 5-10h, is changed after washing, drying
Property plant fiber filter paper.
The FeCl3·6H2O solution is 0.05mol/L, AgNO3Solution is 0.05mol/L, NaBH4Solution is 0.1mol/
L。
The modified plant fibers filter paper base paper is 250g/m2。
The mass ratio of the modified plant fibers filter paper base paper and mixed liquor is 1:10.
The vacuum-impregnated condition is -0.04MPa.
It prepares and contains Cr6+、Cd2+Solution A 200mL, wherein every kind of ion concentration is 100mg/L.It prepares containing organic
The solution B 200mL, COD of pollutantcrFor 100mg/L.The solution C 100mL containing Escherichia coli is prepared, wherein large intestine bar
The concentration of bacterium is 104CFU/100mL.Solution A, solution B, the solution C filter paper made from above-described embodiment are subjected to nature respectively
After filtering, removal rate is as shown in table 1.
Table 1
As can be seen from Table 1, filter paper made from the method for the present invention has obvious bactericidal property and heavy-metal ion removal, has
The ability of machine pollutant is high to the treatment effeciency of waste water.
Claims (5)
1. a kind of preparation method of modified plant fibers filter paper, which comprises the following steps:
(1) by wood pulp, sufficiently mashing is until beating degree is 70-85 ° of SR on beater, and then adjusting concentration is obtained to 1-1.5%
To wood pulp；
(2) FeCl for being equivalent to wood pulp quality 5-10% is added into the wood pulp3·6H2O solution and 3-5%'s
AgNO33-5h is sufficiently stirred in solution, is then added under the conditions of inert gas shielding and is equivalent to wood pulp quality 40-50%'s
NaBH4Solution is stirred to react 1-2h, obtains modified filter paper slurry；
(3) it is added into the modification filter paper slurry and is equivalent to the wet strong of modified filter paper slurry oven dry stock quality 0.1-0.5%
The drying strengthening agent MF of agent PAE and 0.5-1%, by manufacturing paper with pulp, squeezing, being dried to obtain modified plant fibers filter paper base paper；
(4) first by ammonium hydroxide, dehydrated alcohol and water (1-2) in mass ratio: (40-50): (5-10) is uniformly mixed and obtains mixed liquor, then
The modified plant fibers filter paper base paper is impregnated in mixed liquor, is then slowly added dropwise under agitation described in being equivalent to
The ethyl orthosilicate of mixed liquor quality 3-5%, first vacuum impregnation 0.5-1h after being added dropwise, then normal pressure stands 5-10h, washes
Wash, dry after obtain modified plant fibers filter paper.
2. a kind of preparation method of modified plant fibers filter paper according to claim 1, which is characterized in that the FeCl3·
6H2O solution is 0.03-0.05mol/L, AgNO3Solution is 0.03-0.05mol/L, NaBH4Solution is 0.05-0.1mol/L.
3. a kind of preparation method of modified plant fibers filter paper according to claim 1, which is characterized in that the modified plant
Fibres filter paper base paper is 150-250g/m2。
4. a kind of preparation method of modified plant fibers filter paper according to claim 1, which is characterized in that the modified plant
The mass ratio of fibres filter paper base paper and mixed liquor is 1:(5-10).
5. a kind of preparation method of modified plant fibers filter paper according to claim 1, which is characterized in that the Vaccum Permeating
The condition of stain is-(0.02-0.04) MPa.
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| CN201811046208.1A CN108999032B (en) | 2018-09-07 | 2018-09-07 | Preparation method of modified plant fiber filter paper |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109692667A (en) * | 2019-02-11 | 2019-04-30 | 南京林业大学 | A kind of biomass arsenic removal material and preparation method thereof |
| CN114908598A (en) * | 2022-02-26 | 2022-08-16 | 北京林业大学 | Oxygen bleaching method for paper pulp |
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| CN114908598A (en) * | 2022-02-26 | 2022-08-16 | 北京林业大学 | Oxygen bleaching method for paper pulp |
| CN114908598B (en) * | 2022-02-26 | 2022-12-09 | 北京林业大学 | Oxygen bleaching method for paper pulp |
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Effective date of registration: 20230907 Address after: No. 009 Shengkang Road, Sishui County Economic Development Zone, Jining City, Shandong Province, 273200 Patentee after: Shandong Sishui Deyi industry and Trade Co.,Ltd. Address before: Building 504, Building 10, Fulicheng, Xiguan Street, Sanba Street, Yongqiao District, Suzhou City, Anhui Province, 234000 Patentee before: Suzhou Xuansai Information Technology Co.,Ltd. Effective date of registration: 20230907 Address after: Building 504, Building 10, Fulicheng, Xiguan Street, Sanba Street, Yongqiao District, Suzhou City, Anhui Province, 234000 Patentee after: Suzhou Xuansai Information Technology Co.,Ltd. Address before: 234000 55 Bianhe Middle Road, Suzhou City, Anhui Province Patentee before: SUZHOU University |