CN106731867A - The preparation method and preparation facilities of a kind of efficient anti-pollution reverse osmosis membrane - Google Patents
The preparation method and preparation facilities of a kind of efficient anti-pollution reverse osmosis membrane Download PDFInfo
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- CN106731867A CN106731867A CN201611123103.2A CN201611123103A CN106731867A CN 106731867 A CN106731867 A CN 106731867A CN 201611123103 A CN201611123103 A CN 201611123103A CN 106731867 A CN106731867 A CN 106731867A
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- reverse osmosis
- osmosis membrane
- efficient anti
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- URLKBWYHVLBVBO-UHFFFAOYSA-N Cc1ccc(C)cc1 Chemical compound Cc1ccc(C)cc1 URLKBWYHVLBVBO-UHFFFAOYSA-N 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0002—Organic membrane manufacture
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
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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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
Abstract
The present invention discloses a kind of preparation method of efficient anti-pollution reverse osmosis membrane, comprises the following steps：By reverse osmosis membrane base material it is plasma treated after；By in the organic phase containing additive, organic phase is polystyrene sulfamic acid or polyvinyl sulfamic acid, additive is PVP and dimethyl formamide mixture, and mixed volume ratio is 1:4；Then drying and processing is carried out to reverse osmosis membrane base material, obtains efficient anti-soil reverse osmosis membrane.Invention additionally discloses a kind of preparation facilities of efficient anti-pollution reverse osmosis membrane.Reverse osmosis membrane prepared by the present invention has good pure water flux and salt rejection rate, realizes the effect of efficient anti-soil, extends the service life of reverse osmosis membrane.
Description
Technical field
The present invention relates to water process and concentrating and separating technical field, a kind of system of efficient anti-pollution reverse osmosis membrane is referred in particular to
Preparation Method and preparation facilities.
Background technology
Reverse osmosis membrane is the artificial pellicle that a kind of simulation biological semi-permeable film is made, and generally uses macromolecular material and is made,
Such as CAM, aromatic polyhydrazide film or aromatic polyamide film.The diameter of reverse osmosis membrane surface micropore typically exists
Between 0.1-1nm, the chemical constitution of the size of permeability with film in itself is relevant.Reverse osmosis membrane can be used to separate, concentrate, purifies
Chemical engineering unit operation, is mainly used in pure water preparation and water treatment field.
Reverse osmosis membrane isolates solvent with pressure differential as motive force from solution, and the feed liquid to film side applies pressure, when
When pressure exceedes its osmotic pressure, solvent makees inverse osmosis against the direction of naturally osmotic, so as to the low-pressure side in film is obtained
The penetrating fluid crossed, high-pressure side obtains concentrate.Various inorganic ions, colloidal substance and macromolecular in reverse osmosis membrane energy trap water
Solute, so as to obtain pure water.
However, in the prior art, reverse osmosis membrane such as CAM, aromatic polyhydrazide film or aromatic polyamide film
It is oxidized easily, service life is shorter, meanwhile, without antibiotic and sterilizing effect.
In view of this, the present invention develop a kind of efficient anti-pollution reverse osmosis membrane for overcoming the defect preparation method and
Thus preparation facilities, this case produces.
The content of the invention
It is an object of the invention to provide the preparation method and preparation facilities of a kind of efficient anti-pollution reverse osmosis membrane, the method
The reverse osmosis membrane of preparation has good pure water flux and salt rejection rate, realizes the effect of efficient anti-soil, extends making for reverse osmosis membrane
Use the life-span.
To reach above-mentioned purpose, solution of the invention is：
A kind of preparation method of efficient anti-pollution reverse osmosis membrane, comprises the following steps：By reverse osmosis membrane base material through plasma
After treatment；By in the organic phase containing additive, organic phase is polystyrene sulfamic acid or polyvinyl sulfamic acid, is added
Plus agent is PVP and dimethyl formamide mixture, mixed volume ratio is 1:4；Then to reverse osmosis membrane base material
Drying and processing is carried out, efficient anti-soil reverse osmosis membrane is obtained.
Further, the gas that plasma treatment is passed through is carbon dioxide, and carbon dioxide gas flow is 40-60sccm, purity
More than 99.9%.
Further, the additive mass-volume concentration in organic phase is 20-30%.
Further, reverse osmosis membrane base material passes through plasma treatment with the speed of 0.5-1m/min.
Further, reverse osmosis membrane base material is passed through in the organic phase containing additive with the speed of 0.5-1m/min.
Further, the temperature of drying is 50-70 DEG C.
A kind of preparation facilities of efficient anti-pollution reverse osmosis membrane, including plasma apparatus, organic phase container and baking oven；Should
Plasma apparatus, organic phase container and baking oven are sequentially set, and the organic phase containing additive is housed in organic phase container, organic
It is mutually polystyrene sulfamic acid or polyvinyl sulfamic acid, additive is PVP and dimethylformamide
Mixture, mixed volume ratio is 1:4；Reverse osmosis membrane base material is successively through plasma apparatus, organic phase container and baking oven.
Further, also including rinse with air-dried mechanism, rinsing be arranged on baking oven rear end with air-dried mechanism.
After such scheme, after the present invention carries out plasma modification to reverse osmosis membrane substrate surface, form its surface
Carboxyl-reactive group, then reacts with cationic polymer, finally makes surface positively charged.The film surface of positively charged can repel band
The ion or colloid of positive electricity reduce the pollution level of film, so that reverse osmosis membrane has good pure water flux in surface attachment
And salt rejection rate, the effect of efficient anti-soil is realized, extend the service life of reverse osmosis membrane.
The route of its reaction is as follows：
Brief description of the drawings
Fig. 1 is preparation facilities schematic diagram of the present invention；
Fig. 2 is the structural representation of preparation facilities plasma apparatus of the present invention.
Label declaration
The power electrode 11 of plasma apparatus 1
The organic phase container 2 of ground electrode 12
The reverse osmosis membrane base material 4 of baking oven 3
Rinsing and air-dried mechanism 5
Specific embodiment
The present invention is described in detail below in conjunction with drawings and the specific embodiments.
Embodiment one
A kind of preparation method of efficient anti-pollution reverse osmosis membrane, comprises the following steps：
Plasma modification treatment
Reverse osmosis membrane base material is passed through gas with the speed of 0.5m/min by plasma apparatus of the pole plate spacing as 2mm
Atmosphere is the carbon dioxide of 40sccm, and the frequency of radio-frequency power supply used by plasma apparatus is 8KHz.
Film surface grafting is modified
By plasma treated counter-infiltration base material with the speed of 0.5m/min by the polyphenyl second containing mass fraction 20%
In the solution of enamino sulfonic acid, solvent for use is volume ratio 1:4 PVP and dimethylformamide mixing is molten
Liquid.
Drying and processing
To be processed by the baking oven section that temperature is 60 DEG C with the speed of 0.5m/min through the counter-infiltration of surface graft modification.
Winding
The reverse osmosis membrane of drying treatment is obtained final product into efficient anti-soil reverse osmosis membrane by winding after air cooling system.
Embodiment two
A kind of preparation method of efficient anti-pollution reverse osmosis membrane, comprises the following steps：
Plasma modification treatment
Reverse osmosis membrane base material is passed through gas with the speed of 0.6m/min by plasma apparatus of the pole plate spacing as 2mm
Atmosphere is the carbon dioxide of 40sccm, and the frequency of radio-frequency power supply used by plasma apparatus is 8KHz.
Film surface grafting is modified
By plasma treated counter-infiltration base material with the speed of 0.6m/min by the polyphenyl second containing mass fraction 20%
In the solution of enamino sulfonic acid, solvent for use is volume ratio 1:4 PVP and dimethylformamide mixing is molten
Liquid.
Drying and processing
To be processed by the baking oven section that temperature is 60 DEG C with the speed of 0.6m/min through the counter-infiltration of surface graft modification.
Winding
The reverse osmosis membrane of drying treatment is obtained final product into efficient anti-soil reverse osmosis membrane by winding after air cooling system.
Embodiment three
A kind of preparation method of efficient anti-pollution reverse osmosis membrane, comprises the following steps：
Plasma modification treatment
Reverse osmosis membrane base material is passed through gas with the speed of 0.8m/min by plasma apparatus of the pole plate spacing as 2mm
Atmosphere is the carbon dioxide of 50sccm, and the frequency of radio-frequency power supply used by plasma apparatus is 10KHz.
Film surface grafting is modified
By plasma treated counter-infiltration base material again with the speed of 0.8m/min by the polyphenyl containing mass fraction 20%
In the solution of ethene sulfamic acid, solvent for use is volume ratio 1:4 PVP and dimethylformamide mixing
Solution.
Drying and processing
To be processed by the baking oven section that temperature is 50 DEG C with the speed of 0.8m/min through the counter-infiltration of surface graft modification.
Winding
The reverse osmosis membrane of drying treatment is obtained final product into efficient anti-soil reverse osmosis membrane by winding after air cooling system.
Example IV
A kind of preparation method of efficient anti-pollution reverse osmosis membrane, comprises the following steps：
Plasma modification treatment
Reverse osmosis membrane base material is passed through gas with the speed of 0.5m/min by plasma apparatus of the pole plate spacing as 2mm
Atmosphere is the carbon dioxide of 40sccm, and the frequency of radio-frequency power supply used by plasma apparatus is 8KHz.
Film surface grafting is modified
By plasma treated counter-infiltration base material with the speed of 0.5m/min by the polyethylene containing mass fraction 20%
In the solution of base sulfamic acid, solvent for use is volume ratio 1:4 PVP and dimethylformamide mixing is molten
Liquid.
Drying and processing
To be processed by the baking oven section that temperature is 60 DEG C with the speed of 0.5m/min through the counter-infiltration of surface graft modification.
Winding
The reverse osmosis membrane of drying treatment is obtained final product into efficient anti-soil reverse osmosis membrane by winding after air cooling system.
Embodiment five
A kind of preparation method of efficient anti-pollution reverse osmosis membrane, comprises the following steps：
Plasma modification treatment
Reverse osmosis membrane base material is passed through gas with the speed of 1.0m/min by plasma apparatus of the pole plate spacing as 3mm
Atmosphere is the carbon dioxide of 60sccm, and the frequency of radio-frequency power supply used by plasma apparatus is 10KHz.
Film surface grafting is modified
By plasma treated counter-infiltration base material with the speed of 1.0m/min by the polyphenyl second containing mass fraction 20%
In the solution of enamino sulfonic acid, solvent for use is volume ratio 1:4 PVP and dimethylformamide mixing is molten
Liquid.
Drying and processing
To be processed by the baking oven section that temperature is 60 DEG C with the speed of 1.0m/min through the counter-infiltration of surface graft modification.
Winding
The reverse osmosis membrane of drying treatment is obtained final product into efficient anti-soil reverse osmosis membrane by winding after air cooling system.
As shown in Figures 1 and 2, the present invention disclose a kind of efficient anti-pollution reverse osmosis membrane preparation facilities, including etc. from
Daughter equipment 1, organic phase container 2 and baking oven 3；The plasma apparatus 1, organic phase container 2 and baking oven 3 are sequentially set, organic
Organic phase containing additive is housed, organic phase is polystyrene sulfamic acid or polyvinyl sulfamic acid, is added in phase container 2
Plus agent is PVP and dimethyl formamide mixture, mixed volume ratio is 1:4；Reverse osmosis membrane base material 4 is successively
Through plasma apparatus 1, organic phase container 2 and baking oven 3.
Preparation facilities may also include rinsing and air-dried mechanism 5, and rinsing is arranged on the rear end of baking oven 3 with air-dried mechanism 5, rinsing with
Air-dry mechanism 5 carries out air-cooled post processing to reverse osmosis membrane, usually fan for cooling treatment.
As shown in Fig. 2 plasma apparatus 1 are atmospheric low-temperature plasma device, in the form of dielectric barrier discharge
Discharged under atmospheric pressure, agent structure is two pieces of metal polar plates (power electrode 11 and ground electrodes arranged in parallel up and down
12), middle is glass as insulator, and centre is passed through gas, and the gas being passed through is carbon dioxide, and CO2 throughputs are 40-
60sccm, purity is more than 99.9%.Pole plate spacing is 2-3mm, and the frequency of the high-voltage radio-frequency power supply of plasma apparatus 1 is
8KHz-12HKz.Plasma apparatus 1 are routine techniques, and its concrete structure is not repeated herein.
Claims (8)
1. a kind of preparation method of efficient anti-pollution reverse osmosis membrane, it is characterised in that：Comprise the following steps：By reverse osmosis membrane base material
After plasma treated；By in the organic phase containing additive, organic phase is polystyrene sulfamic acid or polyvinyl ammonia
Base sulfonic acid, additive is PVP and dimethyl formamide mixture, and mixed volume ratio is 1:4；Then to anti-
Infiltration film base material carries out drying and processing, obtains efficient anti-soil reverse osmosis membrane.
2. a kind of preparation method of efficient anti-pollution reverse osmosis membrane as claimed in claim 1, it is characterised in that：Plasma treatment
The gas being passed through is carbon dioxide, and carbon dioxide gas flow is 40-60sccm, and purity is more than 99.9%.
3. a kind of preparation method of efficient anti-pollution reverse osmosis membrane as claimed in claim 1, it is characterised in that：In organic phase
Additive mass-volume concentration is 20-30%.
4. a kind of preparation method of efficient anti-pollution reverse osmosis membrane as claimed in claim 1, it is characterised in that：Reverse osmosis membrane base
Material passes through plasma treatment with the speed of 0.5-1m/min.
5. a kind of preparation method of efficient anti-pollution reverse osmosis membrane as claimed in claim 1, it is characterised in that：Reverse osmosis membrane base
Material is with the speed of 0.5-1m/min by the organic phase containing additive.
6. a kind of preparation method of efficient anti-pollution reverse osmosis membrane as claimed in claim 1, it is characterised in that：The temperature of drying
It is 50-70 DEG C.
7. a kind of preparation facilities of efficient anti-pollution reverse osmosis membrane, it is characterised in that：Including plasma apparatus, organic phase container
And baking oven；The plasma apparatus, organic phase container and baking oven are sequentially set, and having containing additive is housed in organic phase container
Machine phase, organic phase is polystyrene sulfamic acid or polyvinyl sulfamic acid, and additive is PVP and two
NMF mixture, mixed volume ratio is 1:4；Reverse osmosis membrane base material successively through plasma apparatus, organic phase container and
Baking oven.
8. a kind of preparation facilities of efficient anti-pollution reverse osmosis membrane as claimed in claim 7, it is characterised in that：Also include rinsing
With air-dried mechanism, rinse and be arranged on baking oven rear end with air-dried mechanism.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611123103.2A CN106731867A (en) | 2016-12-08 | 2016-12-08 | The preparation method and preparation facilities of a kind of efficient anti-pollution reverse osmosis membrane |
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| CN201611123103.2A CN106731867A (en) | 2016-12-08 | 2016-12-08 | The preparation method and preparation facilities of a kind of efficient anti-pollution reverse osmosis membrane |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115010697A (en) * | 2022-06-21 | 2022-09-06 | 广西大学 | Preparation of cation photosensitizer quaternary ammonium salt grafted cellulose acetate reverse osmosis membrane |
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| CN105457509A (en) * | 2015-11-27 | 2016-04-06 | 浙江大学 | Polyamide reverse osmosis composite membrane having renewable chlorine resistance and preparation method thereof |
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2016
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|---|---|---|---|---|
| CN102068912A (en) * | 2010-12-07 | 2011-05-25 | 天津工业大学 | Method for preparing negatively charged nanofiltration membrane through grafting induced after plasma radiation |
| CN102228801A (en) * | 2011-05-16 | 2011-11-02 | 何涛 | Hydrophobically modified distillation membrane material of high throughout and high salt rejection rate and application thereof |
| CN103611430A (en) * | 2013-12-04 | 2014-03-05 | 天津工业大学 | Production method for high-ion selectivity hollow fibrous nanofiltration membrane |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115010697A (en) * | 2022-06-21 | 2022-09-06 | 广西大学 | Preparation of cation photosensitizer quaternary ammonium salt grafted cellulose acetate reverse osmosis membrane |
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Address after: The North Industrial Zone of Jimei Tianfeng road Xiamen City, Fujian province 361021 No. 69 Applicant after: Xiamen Jian Lin health home Limited by Share Ltd Address before: The North Industrial Zone of Jimei Tianfeng road Xiamen City, Fujian province 361021 No. 69 Applicant before: Xiamen Runner Industrial Corporation |
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Effective date of registration: 20171221 Address after: 361000 Fujian Province, Xiamen city Tongan Industrial Zone Siming Park No. 305 Applicant after: Xiamen Bailin water purification technology Co. Ltd. Address before: The North Industrial Zone of Jimei Tianfeng road Xiamen City, Fujian province 361021 No. 69 Applicant before: Xiamen Jian Lin health home Limited by Share Ltd |
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