CN108840519A - A kind of livestock breeding wastewater processing unit - Google Patents
A kind of livestock breeding wastewater processing unit Download PDFInfo
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- CN108840519A CN108840519A CN201810683451.8A CN201810683451A CN108840519A CN 108840519 A CN108840519 A CN 108840519A CN 201810683451 A CN201810683451 A CN 201810683451A CN 108840519 A CN108840519 A CN 108840519A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2846—Anaerobic digestion processes using upflow anaerobic sludge blanket [UASB] reactors
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- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention discloses a kind of livestock breeding wastewater processing units, processing unit includes equipment for separating liquid from solid, carry out the UASB processing unit of high concentration COD, NH_3-N treating, sterilizing unit and secondary separation device, equipment for separating liquid from solid is using the PP non-woven fabrics of modification as filter cloth, isolate the antibiotic and heavy metal ion in livestock breeding wastewater, UASB processing unit carries out high concentration COD, NH_3-N treating, processing unit has structure simple, high treating effect separates the characteristics of recycling antibiotic and heavy metal ion.
Description
Technical field
The present invention relates to technical field of waste water processing more particularly to a kind of livestock breeding wastewater processing units.
Background technique
Since the 21th century, the structure of agricultural production in China is continued to optimize, and Derived from Agricultural Modernization advance to perfect order is formed gradually
Intensive livestock and poultry breeding industry with relative size.And with the gradually development of livestock and poultry breeding industry, the following livestock and poultry are dirty
Water problems also more serious.Aquaculture bring pollution simultaneously also will constantly influence China's quality of water environment, for water
It is extremely urgent to solve waste water of livestock poultry pollution problem for the improvement and improvement of environment.During daily livestock and poultry cultivation, raiser's meeting
It is prevented and treated accordingly for the various diseases of livestock and poultry, the method generallyd use is to add related drug in feed to add with other
Add agent, so as to cause a large amount of heavy metal and antibiotic is contained in excrement, therefore in waste water of livestock poultry, more serious a class of pollutant
It is heavy metal and antibiotic, the improvement for antibiotic and heavy metal in waste water of livestock poultry has been the most important thing.
Most common method is flocculent precipitation in Modern sewage treatment process, but is only that various pollutants absorption is heavy
It lowers, the wadding body to settle down is still pollutant, also needs to carry out further harmless treatment, and flocculant is difficult to back
It receives, can not recycle and reuse, need a kind of method and apparatus for separating antibiotic and heavy metal ion from waste water of livestock poultry.
Summary of the invention
Based on technical problem set forth above, the application provide in a kind of separable waste water of livestock poultry antibiotic and heavy metal from
The device of son.
A kind of livestock breeding wastewater processing unit, including equipment for separating liquid from solid carry out high concentration COD, NH_3-N treating
UASB processing unit, sterilizing unit and secondary separation device, the equipment for separating liquid from solid include water inlet, the first sludge pipe,
One filter cloth, the UASB processing unit include inlet tank, reactor, water tank, and the reactor is followed successively by sludge from the bottom to top
Area, decanting zone and three-phase separation area, top are equipped with gas collecting apparatus, and the secondary separation device includes the second sludge pipe, the second filter
Cloth, whole discharge outlet, the UASB processing unit are connect with equipment for separating liquid from solid, and the sterilizing unit and UASB processing unit connect
It connects, the secondary separation device is connect with sterilizing unit.Filter cloth material in the equipment for separating liquid from solid is MODIFIED PP non-woven fabrics,
The MODIFIED PP non-woven fabrics is using PP non-woven fabrics as substrate layer, and substrate layer surface is equipped with uvioresistant process layer, uvioresistant process layer
Surface is equipped with hydrophobe variable layer.
By the setting of uvioresistant process layer and hydrophobe variable layer, makes PP non-woven fabrics while there is uvioresistant performance and parent
The performance of hydrophobic transformation takes out filter cloth, removing liquid leaching for adsorbable antibiotic and heavy metal ion in wastewater treatment after processing
Bubble, the antibiotic of absorption and heavy metal ion can be parsed, filter cloth clean dry it is rear reusable, removing liquid be
0.14g/L sodium hydroxide solution and dehydrated alcohol by volume 6:The cold soln of 4 configurations.
The technical solution that embodiments herein provides can include the following benefits：
The setting of hydrophobe variable layer imparts the good temperature-responsive hydrophobe transformation performance of non-woven fabrics, and temperature is higher than phase
When transition temperature, intramolecular hydrogen bond is formed between amide group, polymer chain shrinks aggregation, in absorption and hydrophobic state, effectively
Antibiotic and heavy metal ion, hydrophilic stains in absorption waste water are also not easy to stain, and shrink and generate miniature hole, can promote
Moisture passes through；When temperature is lower than phase transition temperature, amide group forms intermolecular hydrogen bonding, and hydrophilic radical accounts for leading on polymeric chain,
The ball of string structure that stretching, extension is presented dissociates the antibiotic and heavy metal ion of absorption in desorption and hydrophily, enhances easy to wash
Property, the setting of uvioresistant process layer imparts the good uvioresistant performance of non-woven fabrics, sunning is avoided to cause ultraviolet light to non-woven fabrics
The degradation of hydrophobe process layer destroys, and improves durability.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.It should be understood that above general description and following detailed description are only
Be it is exemplary and explanatory, the present invention can not be limited.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings, and the drawings herein are incorporated into the specification and constitutes this specification
A part illustrates embodiments consistent with the invention, and is used to explain the principle of the present invention together with specification, but in attached drawing
Embodiment does not constitute any limitation of the invention, for those of ordinary skill in the art, what is do not made the creative labor
Under the premise of, other attached drawings can also be obtained according to the following drawings.
Fig. 1 is schematic structural view of the invention
Appended drawing reference：1- equipment for separating liquid from solid；11- water inlet；The first filter cloth of 12-；The first sludge pipe of 13-；2-UASB dress
It sets；21- inlet tank；22- reactor；23- water tank；3- sterilizing unit；31- drug-feeding tube；4- secondary separation device；41- second
Sludge pipe；The second filter cloth of 42-；43- end discharge outlet.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistented with the present invention.On the contrary, they be only with it is such as appended
The example of device and method being described in detail in claims, some aspects of the invention are consistent.
The embodiment of the present invention is related to a kind of livestock breeding wastewater processing unit, including equipment for separating liquid from solid 1 and the first filter
Cloth 12, first filter cloth are MODIFIED PP non-woven fabrics, and the MODIFIED PP non-woven fabrics is the substrate layer table using PP non-woven fabrics as substrate layer
Face is equipped with uvioresistant process layer, and uvioresistant handles layer surface and is equipped with hydrophobe variable layer.
Preferably, which is PP non-woven fabrics；
Preferably, which is to be coated with nano-TiO2Calcium carbonate nano particle layer；
Nanometer calcium carbonate itself has the function of space steric effect and absorbs ultraviolet light, antibacterial, toughening, is coated with nanometer
TiO2Calcium carbonate nano particle, have the effect of easily being uniformly dispersed and enhancing uv absorption property that there is compact structure, heat is steady
Qualitative height, the good feature of durability can be by nano-TiO2It is separated with hydrophobe coating, avoids nano-TiO2Directly contact parent
Hydrophobic treatment layer slows down the photocatalytic degradation of hydrophobe process layer；
Preferably, described to be coated with nano-TiO2Calcium carbonate nano particle is dispersed in aqueous solution with 1% PEG, content
It is 0.5%, is supported on PP non-woven fabrics by the method for padding finishing；
Preferably, which is n-isopropyl acrylamide, N hydroxymethyl acrylamide and deacetylated crust
Element supports hydrogel material by the copolymerization that polymerization reaction obtains；
There is the double bond being conjugated with carbonyl and rich in reactive methylol, polymerization in N hydroxymethyl acrylamide molecule
The glass transition temperature of object is lower, can with n-isopropyl acrylamide copolymerization under room temperature between elastomeric state and viscous state
To enhance flexibility；
Preferably, monomer n-isopropyl acrylamide and the ratio of N hydroxymethyl acrylamide are 10 in polymerization reaction：1,
Chitosan is configured to the use of 1g/L acetic acid solution, and additive amount is solution quality 2.5%；
By the proportion with N hydroxymethyl acrylamide and chitosan copolymerization and change monomer, preferably it is suitable for out
The temperature sensitive copolymer of glass transition temperature and phase transition temperature can make the sound of hydrophobe transformation according to variation of ambient temperature
It answers；
Preferably, crosslinking agent used is N in polymerization reaction, and N- methylene-bisacrylamide, dosage is monomer mass 2%；
Redox initiator used is potassium persulfate and sodium hydrogensulfite, and dosage is the 2% of monomer mass, Oxidizing and Reducing Agents
Ratio is 1:1；
Preferably, load has the PP non-woven fabrics of calcium carbonate nano particle to be crosslinked hydrophobe by the method for padding finishing and can be changed
Layer, with glutaraldehyde as cross linker, dosage is the 5% of hydrogel.
The setting with hydrophobe variable layer is handled by UV-resistant layer, makes PP non-woven fabrics while there is uvioresistant performance and parent
The performance of hydrophobic transformation, for taking out filter cloth after wastewater treatment, removing liquid impregnates, can be by the antibiotic and heavy metal ion of absorption
Parse, filter cloth clean dry it is rear reusable.
Enumerate embodiment further below with the present invention will be described in detail.It will similarly be understood that following embodiment is served only for this
Invention is further described, and should not be understood as limiting the scope of the invention, those skilled in the art is according to this hair
Some nonessential modifications and adaptations that bright above content is made all belong to the scope of protection of the present invention.Following examples are specific
Technological parameter etc. is also only an example in OK range, i.e. those skilled in the art can be done properly by the explanation of this paper
In the range of select, and do not really want to be defined in hereafter exemplary specific value.
Embodiment 1
A kind of livestock breeding wastewater processing unit, including equipment for separating liquid from solid 1 carry out high concentration COD, NH_3-N treating
UASB processing unit 2, sterilizing unit 3 and secondary separation device 4.The equipment for separating liquid from solid includes water inlet 11, the first spoil disposal
Pipe 13, the first filter cloth 12, the UASB processing unit include inlet tank 21, reactor 22, water tank 23, and the reactor is under
Supreme to be followed successively by sludge area, decanting zone and three-phase separation area, top is equipped with gas collecting apparatus, and the secondary separation device includes second
Sludge pipe 41, the second filter cloth 42, whole discharge outlet 43, the UASB processing unit are connect with equipment for separating liquid from solid, the sterilization dress
It sets and is connect with UASB processing unit, the secondary separation device is connect with sterilizing unit.First filter cloth is MODIFIED PP nonwoven
Cloth, the number of plies are one layer, and the MODIFIED PP non-woven fabrics is using PP non-woven fabrics as substrate layer, and substrate layer surface is equipped with uvioresistant processing
Layer, uvioresistant handle layer surface and are equipped with hydrophobe variable layer.
Embodiment 2
A kind of livestock breeding wastewater processing unit, including equipment for separating liquid from solid carry out high concentration COD, NH_3-N treating
UASB processing unit, sterilizing unit and secondary separation device.The equipment for separating liquid from solid includes water inlet, the first sludge pipe,
One filter cloth, the UASB processing unit include inlet tank, reactor, water tank, and the reactor is followed successively by sludge from the bottom to top
Area, decanting zone and three-phase separation area, top are equipped with gas collecting apparatus, and the secondary separation device includes the second sludge pipe, the second filter
Cloth, whole discharge outlet, the UASB processing unit are connect with equipment for separating liquid from solid, and the sterilizing unit and UASB processing unit connect
It connects, the secondary separation device is connect with sterilizing unit.First filter cloth is MODIFIED PP non-woven fabrics, and the number of plies is two layers, described
MODIFIED PP non-woven fabrics is using PP non-woven fabrics as substrate layer, and substrate layer surface is equipped with uvioresistant process layer, and uvioresistant handles layer surface
Equipped with hydrophobe variable layer.
Embodiment 3
A kind of livestock breeding wastewater processing unit, including equipment for separating liquid from solid carry out high concentration COD, NH_3-N treating
UASB processing unit, sterilizing unit and secondary separation device.The equipment for separating liquid from solid includes water inlet, the first sludge pipe,
One filter cloth, the UASB processing unit include inlet tank, reactor, water tank, and the reactor is followed successively by sludge from the bottom to top
Area, decanting zone and three-phase separation area, top are equipped with gas collecting apparatus, and the secondary separation device includes the second sludge pipe, the second filter
Cloth, whole discharge outlet, the UASB processing unit are connect with equipment for separating liquid from solid, and the sterilizing unit and UASB processing unit connect
It connects, the secondary separation device is connect with sterilizing unit.First filter cloth is MODIFIED PP non-woven fabrics, and the number of plies is three layers, described
MODIFIED PP non-woven fabrics is using PP non-woven fabrics as substrate layer, and substrate layer surface is equipped with uvioresistant process layer, and uvioresistant handles layer surface
Equipped with hydrophobe variable layer.
Preferred embodiment is that the uvioresistant process layer is to be coated with nano-TiO2Calcium carbonate nano particle layer；
Preferably, described to be coated with nano-TiO2Calcium carbonate nano particle is dispersed in aqueous solution with 1% PEG, content
It is 0.5%, is supported on PP non-woven fabrics by the method for padding finishing；
Preferred embodiment is that the hydrophobe variable layer is n-isopropyl acrylamide, N hydroxymethyl acrylamide and takes off
Acetyl chitin supports hydrogel material by the copolymerization that polymerization reaction obtains；
Preferably, monomer n-isopropyl acrylamide and the ratio of N hydroxymethyl acrylamide are 10 in polymerization reaction：1,
Chitosan is configured to the use of 1g/L acetic acid solution, and additive amount is solution quality 2.5%；
Preferably, crosslinking agent used is N in polymerization reaction, and N- methylene-bisacrylamide, dosage is monomer mass 2%；
Redox initiator used is potassium persulfate and sodium hydrogensulfite, and dosage is the 2% of monomer mass, Oxidizing and Reducing Agents
Ratio is 1:1；
Preferably, load has the PP non-woven fabrics of calcium carbonate nano particle to be crosslinked hydrophobe by the method for padding finishing and can be changed
Layer, with glutaraldehyde as cross linker, dosage is the 5% of hydrogel.
Preferably, the method for sorting of the MODIFIED PP non-woven fabrics is as follows：
Step 1：Prepare nano-TiO2
10g tetrabutyl titanate ester is added drop-wise to 35ml dehydrated alcohol and ultrasound 1min, as A liquid；By 10g deionized water with
35ml dehydrated alcohol, 40ml acetic acid uniformly mix, and as B liquid, A liquid are added drop-wise to dropwise in B liquid, mixed liquor is kept during dropwise addition
Uniform high-speed stirred is all added dropwise to A liquid, and mixed liquor continues to stir 40min, is transferred in culture dish and forms gel, shape
At gel through 90 DEG C it is dry for 24 hours, temperature is cooled to room temperature grinding, and 600 DEG C of heat treatment 2h obtain nano-TiO2；
Step 2：Coat nano-TiO2
By nano-TiO2By solid-liquid ratio 1:6 ratio uniform is distributed in the calcium chloride solution that mass fraction is 11%, with
Revolving speed 800r/min stirs 30min, obtains nano-TiO2Calcium chloride dispersion liquid, revolving speed improves to 1000r/min, is passed through simultaneously
The mass ratio of the material example is 1:The object of calcium chloride in 1 ammonia and carbon dioxide gas mixture, carbon dioxide intake and dispersion liquid
The amount ratio of matter is 1.5:1, after the reaction was completed, filtering is dry to constant weight, obtains solid precipitating, twice of mass is added in precipitating
Dehydrated alcohol, filtration drying obtains cladding nano-TiO to constant weight after mortar grinder 2 hours2Calcium carbonate nano particle；
Step 3：Load
PP non-woven fabrics is impregnated in the 1g/L diallyl dimethyl chlorination being configured to 0.5mol/L sodium chloride solution
Ammonium salt solution, deionized water is cleaned after 10min, with padding machine roll it is even after drying, pick-up 70%, be added in deionized water 1% it is poly-
Ethylene glycol and 0.5% cladding nano-TiO2Calcium carbonate nano particle, ultrasonic disperse 2min, be made finishing fluid, by PP nonwoven
Cloth is immersed in finishing fluid, even, pick-up 70% is rolled after 10min with padding machine, in 160 DEG C of baking 5min after 80 DEG C of drying；
Step 4：The processing of hydrophobe variable layer
By n-isopropyl acrylamide monomer, N hydroxymethyl acrylamide monomer and the crosslinking agent N for accounting for monomer mass 2%,
N- methylene-bisacrylamide is dissolved in distilled water to form 1mol/L monomer solution, monomer n-isopropyl acrylamide and N-
The ratio of hydroxymethyl acrylamide is 10：1, the acetic acid solution of the 1g/L chitosan of solution quality 2.5% is added and stirs
30min is mixed, the potassium persulfate and sodium hydrogensulfite that monomer mass 2% is added are as redox initiator, oxidant and reduction
The ratio of agent is 1:1,30min is mixed in polymeric solution, polymerize at room temperature after sealing for 24 hours, after the completion of polymerization reaction, in room
The product of synthesis is immersed into distilled water immersion 48h under temperature, prepares synthetic hydrogel；Hydrogel is added 5% glutaraldehyde and makees crosslinking agent,
It is configured to hydrophobe finishing fluid, the PP non-woven fabrics for having loaded calcium carbonate nano particle is immersed in finishing fluid, with rolling after 15min
Vehicle rolls even, pick-up 70%, and the dry 60 DEG C of 5min of preliminary drying are repeated once dipping and preliminary drying, last 150 DEG C bake drying
3min is washed with distilled water, and 60 DEG C of vacuum drying obtain the MODIFIED PP non-woven fabrics.
1 first plie filter cloth number of table is to the adsorption rate of antibiotic and heavy metal, the influence of removal efficiency
Claims (5)
1. a kind of livestock breeding wastewater processing unit, which is characterized in that including equipment for separating liquid from solid, UASB processing unit, sterilization
Device and secondary separation device, the equipment for separating liquid from solid include water inlet, the first sludge pipe, the first filter cloth, at the UASB
Managing device includes inlet tank, reactor, water tank, and the reactor is followed successively by sludge area, decanting zone and three-phase separate from the bottom to top
From area, top is equipped with gas collecting apparatus, and the secondary separation device includes the second sludge pipe, the second filter cloth, whole discharge outlet, described
UASB processing unit is connect with equipment for separating liquid from solid, and the sterilizing unit is connect with UASB processing unit, the secondary separation dress
It sets and is connect with sterilizing unit, first filter cloth is MODIFIED PP non-woven fabrics, and the MODIFIED PP non-woven fabrics is using PP non-woven fabrics as base
Material layer, substrate layer surface are equipped with uvioresistant process layer, and uvioresistant handles layer surface and is equipped with hydrophobe variable layer.
2. a kind of livestock breeding wastewater processing unit according to claim 1, which is characterized in that the equipment for separating liquid from solid
In the number of plies of the first filter cloth be at least 1 layer.
3. a kind of livestock breeding wastewater processing unit according to claim 1, which is characterized in that the uvioresistant process layer
To be coated with nano-TiO2Calcium carbonate nano particle layer.
4. a kind of livestock breeding wastewater processing unit according to claim 1, which is characterized in that the hydrophobe variable layer
Water is supported by the copolymerization that polymerization reaction obtains for n-isopropyl acrylamide, N hydroxymethyl acrylamide and chitosan
Gel rubber material.
5. a kind of livestock breeding wastewater processing unit according to claim 1, which is characterized in that the MODIFIED PP non-woven fabrics
Method for sorting it is as follows：
Step 1：Nano-TiO2Preparation
10g tetrabutyl titanate ester is added drop-wise to 35ml dehydrated alcohol and ultrasound 1min, as A liquid；By 10g deionized water and 35ml
Dehydrated alcohol, 40ml acetic acid uniformly mix, and as B liquid, A liquid is added drop-wise to dropwise in B liquid, keep mixed liquor uniform during dropwise addition
High-speed stirred is all added dropwise to A liquid, and mixed liquor continues to stir 40min, is transferred in culture dish and forms gel, formation
For 24 hours through 90 DEG C of dryings, temperature is cooled to room temperature grinding to gel, and 600 DEG C of heat treatment 2h obtain nano-TiO2；
Step 2：Coat nano-TiO2
By nano-TiO2By solid-liquid ratio 1:6 ratio uniform is distributed in the calcium chloride solution that mass fraction is 11%, with revolving speed
800r/min stirs 30min, obtains nano-TiO2Calcium chloride dispersion liquid, revolving speed is improved to 1000r/min, while being passed through substance
Amount ratio be 1:The substance of calcium chloride in 1 ammonia and carbon dioxide gas mixture, carbon dioxide intake and dispersion liquid
Amount is than being 1.5:1, after the reaction was completed, filtering is dry to constant weight, obtains solid precipitating, the nothing of twice of mass is added in precipitating
Water-ethanol, filtration drying obtains cladding nano-TiO to constant weight after mortar grinder 2 hours2Calcium carbonate nano particle；
Step 3：Load
It is molten that PP non-woven fabrics is impregnated in the 1g/L diallyl dimethyl ammoniumchloride being configured to 0.5mol/L sodium chloride solution
Liquid, deionized water is cleaned after 10min, with padding machine roll it is even after drying, 1% poly- second two is added in deionized water pick-up 70%
Pure and mild 0.5% cladding nano-TiO2Calcium carbonate nano particle, ultrasonic disperse 2min, be made finishing fluid, PP non-woven fabrics is soaked
Stain rolls even, pick-up 70%, in 160 DEG C of baking 5min after 80 DEG C of drying in finishing fluid with padding machine after 10min；
Step 4：The processing of hydrophobe variable layer
By n-isopropyl acrylamide monomer, N hydroxymethyl acrylamide monomer and the Asia crosslinking agent N, N- for accounting for monomer mass 2%
Bisacrylamide is dissolved in distilled water to form 1mol/L monomer solution, monomer n-isopropyl acrylamide and N- hydroxyl first
The ratio of base acrylamide is 10：1, the acetic acid solution of the 1g/L chitosan of solution quality 2.5% and stirring is added
30min, the potassium persulfate and sodium hydrogensulfite that monomer mass 2% is added are as redox initiator, Oxidizing and Reducing Agents
Ratio be 1:1,30min is mixed in polymeric solution, polymerize at room temperature after sealing for 24 hours, after the completion of polymerization reaction, in room temperature
The lower product by synthesis immerses distilled water immersion 48h, prepares synthetic hydrogel；Hydrogel is added 5% glutaraldehyde and makees crosslinking agent, matches
Hydrophobe finishing fluid is made, the PP non-woven fabrics for having loaded calcium carbonate nano particle is immersed in finishing fluid, padding machine is used after 15min
Even, pick-up 70% is rolled, the dry 60 DEG C of 5min of preliminary drying are repeated once dipping and preliminary drying, and last 150 DEG C bake dry 3min,
It is washed with distilled water, 60 DEG C of vacuum drying obtain the MODIFIED PP non-woven fabrics.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110575708A (en) * | 2019-10-14 | 2019-12-17 | 湖州禾海材料科技有限公司 | preparation method of polypropylene filter material |
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| CN102690020A (en) * | 2012-05-16 | 2012-09-26 | 广州优宇农业科技有限公司 | Device and method for processing pig waste |
| CN104031421A (en) * | 2014-06-24 | 2014-09-10 | 吉林大学 | Preparation method of nano calcium carbonate/titanium dioxide composite powder with core-shell structure |
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| CN110575708A (en) * | 2019-10-14 | 2019-12-17 | 湖州禾海材料科技有限公司 | preparation method of polypropylene filter material |
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