CN107198972A - A kind of membrane chromatography material removed for water body micropollutants and preparation method thereof - Google Patents
A kind of membrane chromatography material removed for water body micropollutants and preparation method thereof Download PDFInfo
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- CN107198972A CN107198972A CN201710386470.XA CN201710386470A CN107198972A CN 107198972 A CN107198972 A CN 107198972A CN 201710386470 A CN201710386470 A CN 201710386470A CN 107198972 A CN107198972 A CN 107198972A
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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
-
- 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
- B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
- B01D67/0016—Coagulation
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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
- B01D67/0079—Manufacture of membranes comprising organic and inorganic components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/281—Sorbents specially adapted for preparative, analytical or investigative chromatography
-
- 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
- C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/12—Adsorbents being present on the surface of the membranes or in the pores
-
- 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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
-
- 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
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
- C02F2101/345—Phenols
-
- 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
- C02F2101/30—Organic compounds
- C02F2101/36—Organic compounds containing halogen
-
- 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
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
Abstract
The invention discloses a kind of membrane chromatography material removed for water body micropollutants and preparation method thereof.The membrane chromatography material combines the characteristics of traditional seperation film is by aperture size screening and chromatogram specific adsorption.With it is high-throughout simultaneously, the common impurities in water body and micropollutants such as heavy metal, remains of pesticide, antibiotic, hormone, polycyclic aromatic hydrocarbon, plasticiser etc. can be removed in the lump simultaneously, moreover it is possible to keep the certain degree of hardness of water body.Therefore, the filtrate of the membrane chromatography material, which can reach, drinks rank, is a kind of efficient, reliable, material with long-range application value.Body membrane material, adsorbability material, pore-foaming agent and solvent are blended by a certain percentage, through deaeration, filtering, stands, obtains polymeric casting film liquid, the membrane chromatography material is further obtained using non-solvent induction phase inversion.The material preparation process is simple, and cost is low, it is adaptable to industrialized mass production.
Description
Technical field
The present invention relates to a kind of membrane chromatography material removed for water body micropollutants and preparation method thereof is proposed, it is related to color
The combination of spectral technology and membrane separation technique, belongs to functional form field of membrane material.
Background technology
Presently the most efficiently separating purification technique has chromatogram and UF membrane.Chromatographic separation technology is existed based on different material
There is different distribution coefficients in the system being made up of stationary phase and mobile phase, be presented different in using mobile phase elution process
Retention time, is a kind of effective ways for separating various components in complex mixture so as to realize separation.By fixed facies type and
Separation principle can be divided into adsorption chromatography, partition chromatography, ion-exchange chromatography, affinity chromatography, gel chromatography, focusing chromatography etc..Most
Conventional is then adsorption chromatography isolation technics, and the difference of material molecule adsorption capacity is realized to mixing in being adsorbed using stationary phase
The separation of thing, is the process that mobile phase molecule competes stationary phase adsorption site with material molecule.Membrane filtration technique refers in molecule
The mixture that different-grain diameter is distributed in level realizes the technology of Selective Separation when by filter membrane.With separative efficiency height, energy
Many advantages, such as low, simple and convenient, environmental protection is consumed, being separated by filtration for water body is widely used in.
With the aggravation of environmental pollution, the isolation technics for removing pollutant is also constantly lifted.Although membrane filtration be it is most effective,
Easy and lower-cost filtration and separation techniques, but traditional membrane filtration technique filters out impurity simply by pore size,
Micropollutants such as heavy metal, remains of pesticide, hormone, polycyclic aromatic hydrocarbon, plasticiser etc. in water body can not effectively be removed；Some are received
Although filter membrane or milipore filter energy filtration fraction micropollutants, can not accomplish that specificity removes other different types of micropollutants
And heavy metal ion；Although some reverse osmosis filter membranes can effectively remove this kind of micropollutants and heavy metal ion, its flux
The minimum application for seriously limiting it in real life.In addition, while heavy metal ion is filtered out, also by water body
The mineral matters such as calcium ions and magnesium ions are also filtered out completely in the lump, are only left hydrone, water body hardness is excessively reduced.
Membrane chromatography technology is that one kind combines chromatographic isolation and membrane filtration, there is specificity and selectivity to large biological molecule
Isolation technics.Compared to common membrane technology, membrane chromatography separation is more than utilizing membrane aperture size, more mainly uses specificity and choosing
Selecting property, it, as medium, connects specific aglucon, by between aglucon and target molecule using the membrane material with certain pore size
Interaction is isolated and purified.According to the mode of interaction, membrane chromatography can be divided into affinity film chromatography, hydrophobic membrane chromatography,
Ion exchange membrane chromatography, multistage membrane chromatography, membrane flexibility, absorption membrane chromatography etc..The core of membrane chromatography separation is that membrane chromatography is situated between
Material, the dielectric material that different membrane chromatographies are selected is different, membrane chromatography be mainly used in the isolating and purifying of bioactive substance,
Purification, blood purification of effective component of chinese medicine etc..In patent 200610042997.2, by high flux chromatographic isolation technology of preparing
It is used for the screening of Cnidium Monnieri active ingredient with recipient cell membrane chromatography triage techniques.Millipore companies use affinity membrane
Chromatogram triage techniques, successfully have developed can monoclonal antibody purification hollow fiber membrane separator.Yang Li et al. uses hydrophobic membrane
Chromatographic technique is prepared for a series of film chromatography mediums, for isolating and purifying for bovine serum albumin.Sun et al. uses amberplex
Human thrombin in chromatogram screening separated plasma is former.Traditional membrane chromatography technology is to carry out selectivity to specific target protein
Absorption, then reaches the effect of separation and purifying by desorption.The present invention proposes a kind of new thinking：By adsorbable micro- pollution
The material of thing is fixed in the way of being blended in membrane body material, prepares a kind of absorption film chromatography medium for efficiently separating filtering.
On the one hand this film chromatography medium can filter out large-sized impurity by membrane aperture size；Another aspect adsorbability material can
Specific adsorption, which is removed, is harmful to micropollutants in water body.Compared to common NF membrane and milipore filter, the absorption film chromatography medium can
More effectively remove the heavy metal ion in water body；Compared to reverse osmosis membrane, the absorption film chromatography medium has significantly higher lead to
Amount, filter efficiency is higher while Heavy Metals in Waters ion is removed.In addition, the medium can allow the ore deposit such as calcium ions and magnesium ions in water body
Material normal through and reverse osmosis membrane then can not, the hardness of water body is ensure that to a certain extent, the health of human body is beneficial to
Drink.Therefore, the application of new film chromatography medium proposed by the invention in water body is significant.
In recent years, different film chromatography mediums is successfully prepared.Hou et al. prepares advection aquagel membrane chromatographic media
Bioprocess technology for monoclonal antibody purifies [Advective hydrogel membrane chromatography for
Monoclonal antibody purification in bioprocessing, Biotechnology progress,
2015,31(4):974-982.]；Madadkar et al. separates monoclonal antibody by cation exchange membrane chromatography
[Preparative separation of monoclonal antibody aggregates by cation-exchange
laterally-fed membrane chromatography,Journal of Chromatography B,2017.]；Ding
Et al. prepare a kind of cancer stem cell membrane chromatography be used for red sage root active constituent screening [Development of APTES-
decorated HepG2 cancer stem cell membrane chromatography for screening active
components from Salvia miltiorrhiza,Analytical Chemistry,2016,88(24):12081-
12089.].These are all that specific component is screened by membrane chromatography, and for isolating and purifying.But this method is equal at present
Separation and purification of biological macromolecule is served only for, application in other respects is also in the stage of excavation.
As the core of membrane chromatography, film chromatography medium is most important part, compared to common filter membrane, its surface or
Specific adsorbable group has been accessed in inside, micropollutants that can effectively in Adsorption water body.It is general to use polychlorostyrene second
Alkene, polysulfones, polyether sulfone etc. have the membrane material of certain mechanical strength, but its surface can be relatively low, and hydrophobicity is unfavorable for by force water body
High efficiency filter.Therefore, we take the mode of blending by can specific absorption micropollutants group, pass through intermolecular force
It is coupled in the structure of membrane material.On the one hand, blending and modifying can effectively improve the hydrophily of membrane material, contribute to more efficient
Filtering；On the other hand, blending is also a kind of most effective most easy method of modifying, and processing is simple, efficiency high, in the scale of expansion
Amplification producer face has great potential.
The present invention proposes a kind of membrane chromatography material removed for water body micropollutants and preparation method thereof, by normal film
Bulk material and sorbing material blending reaction so that prepared seperation film, not only aperture size is controllable, it is excellent steady also to have
Qualitative, hydrophily, while also the material of adsorbable micropollutants is fixed in membrane body material, to the harm health in water body
The specific Adsorption such as heavy metal, remains of pesticide, hormone, polycyclic aromatic hydrocarbon, plasticiser.In addition, the seperation film have compared with
High flux, while keeping efficiently separating filtering, the calcium ions and magnesium ions in water body also can smoothly pass through film so that water body is possessed
Certain hardness, is truly realized filtrate and reaches the rank that health is drunk.The filter separation method efficiency high, cost are low, and make
Membrane process is easy, is adapted to the batch filtration treatment of large-scale production and drinking water, in terms of purification of water quality especially domestic water
With huge application prospect.
The content of the invention
It is an object of the invention to provide a kind of membrane chromatography material removed for water body micropollutants and preparation method thereof,
Combine it is common be filtered through pore size separation impurity and the characteristics of chromatogram specific adsorption is harmful to micropollutants, the membrane chromatography
Material can not only filter large scale impurity in water body, and can also effectively go in water removal micropollutants such as heavy metal, remain agriculture
Medicine, antibiotic, hormone, polycyclic aromatic hydrocarbon, plasticiser etc., while being also different from high-precision filter membrane small throughput and can not retain in water body
Calcium and magnesium plasma, can make water body keep certain hardness, contribute to the health of drinking water.In addition, this seperation film is also equipped with
Excellent hydrophily and adsorptivity, filtrate can be directly used for human security and drink, with high filter efficiency, in food and doctor
There is great demand and application prospect in terms of medicine industry and domestic water.
The present invention is achieved through the following technical solutions：
The preparation method of the membrane chromatography material removed for water body micropollutants, comprises the following steps：
(1) body membrane material, adsorbability material, pore-foaming agent are mixed with solvent by certain mass ratio, at 30~100 DEG C
Through mechanical agitation solution is formed to being completely dissolved；The mass ratio of each component is as follows：Body membrane material is 10~40%；Adsorptivity thing
Matter is 0.5~5%；Pore-foaming agent is 0~5%；Solvent is 50~89.5%；
(2) by resulting solution at 30~100 DEG C further deaeration, filtering, stand, obtain polymeric casting film liquid；
(3) casting solution is coated with or extruded by film-forming machine, be immersed in curing molding in coagulating bath, form polymer film,
Clean, dry in deionized water, obtain membrane chromatography material.
Above-mentioned each component can specifically use following preferred embodiment：Described body membrane material is polyvinyl chloride, polyvinylidene fluoride
Any one in alkene, polyacrylonitrile, polysulfones, polyether sulfone.Described adsorbability material is bentonite, kaolin, cyclodextrin, shell
One or more in glycan, polyurethane.Described pore-foaming agent is any one in polyethylene glycol, polyvinylpyrrolidone.Institute
The solvent stated is any one in DMAC N,N' dimethyl acetamide, N,N-dimethylformamide, 1-METHYLPYRROLIDONE.
Another object of the present invention is to provide it is a kind of according to the above method prepare be used for water body micropollutants remove
Membrane chromatography material.The membrane chromatography material shape can be tabular or hollow fiber；Membrane chromatography material aperture can be in 0.002-10 μ
Between m.
The characteristics of membrane chromatography material of the present invention has traditional filter membrane separation and chromatogram specific adsorption concurrently, height can be played simultaneously
Effect goes the effect of the removal of impurity and harmful micropollutants.While the membrane chromatography material is based on the filtering of membrane aperture size, with reference to chromatogram
Specific adsorption removes micropollutants, wherein what filtering removed is bacterium, colloid and protein, and what specific adsorption was removed is pair
Human body is harmful to micropollutants, mainly including heavy metal cadmium, lead, copper, mercury etc., and remains of pesticide, hormone, antibiotic, many cyclophanes
Hydrocarbon, plasticiser etc..The preparation technology of the membrane chromatography material is simple, and cost is low, can be applied to industrialized mass production, in water quality
There is huge application prospect in terms of purification, microbe filter, food and medicine.
Embodiment
The specific embodiment of the present invention is described below, but the present invention should not be limited by the examples.From disclosed by the invention interior
Appearance is associated or derived all deformations, is considered protection scope of the present invention.
The preparation method of the membrane chromatography material removed for water body micropollutants, comprises the following steps：
(1) body membrane material, adsorbability material, pore-foaming agent are mixed with solvent by certain mass ratio, at 30~100 DEG C
Through mechanical agitation solution is formed to being completely dissolved；The mass ratio of each component is as follows：Body membrane material is 10~40%；Adsorptivity thing
Matter is 0.5~5%；Pore-foaming agent is 0~5%；Solvent is 50~89.5%；
(2) by resulting solution at 30~100 DEG C further deaeration, filtering, stand, obtain polymeric casting film liquid；
(3) casting solution is coated with or extruded by film-forming machine, be immersed in curing molding in coagulating bath, form polymer film,
Clean, dry in deionized water, obtain membrane chromatography material.
Body membrane material is any one in polyvinyl chloride, Kynoar, polyacrylonitrile, polysulfones, polyether sulfone.Absorption
Property material be bentonite, kaolin, cyclodextrin, chitosan, polyurethane in one or more.Pore-foaming agent is polyethylene glycol, gathered
Any one in vinylpyrrolidone.Solvent is DMAC N,N' dimethyl acetamide, N,N-dimethylformamide, 1-METHYLPYRROLIDONE
In any one.
It is used for the membrane chromatography material structure of water body micropollutants removing and the sign side of performance in subsequent embodiment of the present invention
Method：
Flux is tested：Diaphragm is cut, is fixed in ultrafiltration cup, deionized water precompressed 30min, Ran Hou is used under 0.1MPa
Pure water flux (L/m is measured under uniform pressure2h)。
Bovine serum albumin (BSA) rejection：Under 0.1MPa with concentration be 1.0g/L BSA solution precompressed 30min after, receive
Collect 20mL filtrates, its absorbance is measured with ultraviolet specrophotometer, reference standard curve meter determines the BSA (molecular weight that pH is 7.4
For 67000Da) rejection of solution.
Heavy metal ion adsorbed test：A certain size diaphragm is taken, is fixed in ultrafiltration cup, is filtered respectively under 0.1MPa
Different heavy metal ion titers, measure the heavy metal ion content in filtrate with atomic fluorescence spectrometry, calculate filter membrane pair
The adsorption rate of each heavy metal ion.
Micropollutants absorption test：Scan different micro- dirts respectively in 200-800nm using uv-visible absorption spectra instrument
The UV-visible absorption spectrum of thing solution is contaminated, its characteristic peak positions is determined.Certain density micropollutants solution is configured, and
Determine the absorbance A of the solution1.Filter the pollutant solution respectively under 0.1MPa, determine corresponding absorbance in filtrate
A2, then separation membrane material the adsorption rate Q of micropollutants can be calculated by equation below：
Q=(A2-A1)/A2
Embodiment 1：
The concentration requirement of the reference numeral of according to the form below 1.1, by polyvinyl chloride, bentonite, polyethylene glycol and N, N- dimethyl second
Acid amides is mixed, through mechanical agitation 2h, fully after dissolving, is obtained casting solution after deaeration, filtering, is stood 30min.Casting solution is passed through
Film-forming machine is extruded, and is immersed in curing molding in coagulating bath, and 25 DEG C of washings obtain laminar film chromatographic material, further use deionization
Water is fully cleaned, then standing is dried in atmosphere, obtains the membrane chromatography material that aperture is 10 μm.Test its water flux, BSA retentions
Rate.Test is to 100mg/L Pb2+The adsorption rate of titer and the adsorption rate to micropollutants bisphenol-A (BPA).
Table 1.1：The preparation condition of polyvinyl chloride/bentonite membrane chromatography material
Table 1.2：Polyvinyl chloride/bentonite membrane chromatography material characteristic data
Embodiment 2：
The concentration requirement of the reference numeral of according to the form below 2.1, by Kynoar, kaolin, polyvinylpyrrolidone and N, N-
Dimethylformamide is mixed, through mechanical agitation 2h, fully after dissolving, is obtained casting solution after deaeration, filtering, is stood 30min.Will casting
Film liquid is extruded by film-forming machine, and is immersed in curing molding in coagulating bath, and 25 DEG C are washed the membrane chromatography material for obtaining hollow fiber
Material, is further fully cleaned with deionized water, then standing is dried in atmosphere, obtains the membrane chromatography material that aperture is 5 μm.Test
Its water flux, BSA rejections.Test is to 100mg/L Cd2+The adsorption rate of titer and the adsorption rate to salbutamol.
Table 2.1：The preparation condition of Kynoar/kaolin membrane chromatography material
Table 2.2：Kynoar/kaolin membrane chromatography material characteristic data
Embodiment 3：
The concentration requirement of the reference numeral of according to the form below 3.1, by polyacrylonitrile, cyclodextrin, polyvinylpyrrolidone and N- methyl
Pyrrolidones is mixed, through mechanical agitation 2h, fully after dissolving, is obtained casting solution after deaeration, filtering, is stood 30min.By casting solution
Extruded by film-forming machine, and be immersed in curing molding in coagulating bath, 25 DEG C of washings obtain laminar film chromatographic material, further spent
Ionized water is fully cleaned, then standing is dried in atmosphere, obtains the membrane chromatography material that aperture is 10nm.Test its water flux, BSA
Rejection.Test is to 100mg/L Hg2+The adsorption rate of titer and the adsorption rate to dioctyl phthalate (DEHP).
Table 3.1：The preparation condition of polyacrylonitrile/cyclodextrin membrane chromatography material
Table 3.2：Polyacrylonitrile/cyclodextrin membrane chromatography material characteristic data
Embodiment 4：
The concentration requirement of the reference numeral of according to the form below 4.1, by polysulfones, chitosan, polyethylene glycol and DMA
Mixing, through mechanical agitation 2h, fully after dissolving, obtains casting solution after deaeration, filtering, stands 30min.Casting solution is passed through into film forming
Machine is extruded, and is immersed in curing molding in coagulating bath, and 25 DEG C are washed the membrane chromatography material for obtaining hollow fiber, are further spent
Ionized water is fully cleaned, then standing is dried in atmosphere, obtains the membrane chromatography material that pore size is 2nm.Its water flux is tested,
BSA rejections.Test is to 100mg/LCu2+The adsorption rate of titer and the adsorption rate to erythromycin.
Table 4.1：The preparation condition of polysulfones/chitosan film chromatographic material
Table 4.2：Polysulfones/chitosan film chromatographic material performance data
Embodiment 5：
The concentration requirement of the reference numeral of according to the form below 5.1, by polyether sulfone, polyurethane, polyvinylpyrrolidone and N- methyl pyrroles
Pyrrolidone is mixed, through mechanical agitation 2h, fully after dissolving, is obtained casting solution after deaeration, filtering, is stood 30min.Casting solution is led to
Film-forming machine extrusion is crossed, and is immersed in curing molding in coagulating bath, 25 DEG C are washed the membrane chromatography material for obtaining sheet, are further spent
Ionized water is fully cleaned, then standing is dried in atmosphere, obtains the membrane chromatography material that pore size is 1 μm.Its water flux is tested,
BSA rejections.Test is to 100mg/LCd2+The adsorption rate of titer and the absorption to double rubigan trichloroethanes (DDT)
Rate.
Table 5.1：The preparation condition of polyether sulfone/polyurethane film chromatographic material
Table 5.2：Polyether sulfone/polyurethane film chromatographic material performance data
Above-described embodiment shows, membrane chromatography material of the invention with it is high-throughout simultaneously, to common miscellaneous in water body
Matter and micropollutants such as heavy metal, remains of pesticide, antibiotic, hormone, polycyclic aromatic hydrocarbon, plasticiser etc. can be removed in the lump simultaneously,
The certain degree of hardness of water body can also be kept.Therefore, the filtrate of the membrane chromatography material, which can reach, drinks rank, be it is a kind of efficiently, can
Lean on, the material with long-range application value.
Claims (8)
1. a kind of preparation method of the membrane chromatography material removed for water body micropollutants, it is characterised in that comprise the following steps：
(1) body membrane material, adsorbability material, pore-foaming agent are mixed with solvent by certain mass ratio, at 30~100 DEG C through machine
Tool stirs to being completely dissolved to form solution；The mass ratio of each component is as follows：Body membrane material is 10~40%；Adsorbability material is
0.5~5%；Pore-foaming agent is 0~5%；Solvent is 50~89.5%；
(2) by resulting solution at 30~100 DEG C further deaeration, filtering, stand, obtain polymeric casting film liquid；
(3) casting solution is coated with or extruded by film-forming machine, be immersed in curing molding in coagulating bath, form polymer film, in going
Clean, dry in ionized water, obtain membrane chromatography material.
2. the preparation method of the membrane chromatography material according to claim 1 removed for water body micropollutants, its feature exists
In described body membrane material is any one in polyvinyl chloride, Kynoar, polyacrylonitrile, polysulfones, polyether sulfone.
3. the preparation method of the membrane chromatography material according to claim 1 removed for water body micropollutants, its feature exists
In described adsorbability material is the one or more in bentonite, kaolin, cyclodextrin, chitosan, polyurethane.
4. the preparation method of the membrane chromatography material according to claim 1 removed for water body micropollutants, its feature exists
In described pore-foaming agent is any one in polyethylene glycol, polyvinylpyrrolidone.
5. the preparation method of the membrane chromatography material according to claim 1 removed for water body micropollutants, its feature exists
In described solvent is any one in DMA, DMF, 1-METHYLPYRROLIDONE.
6. a kind of be used for the membrane chromatography material that water body micropollutants remove according to prepared by any methods described of Claims 1 to 5.
7. a kind of membrane chromatography material removed for water body micropollutants according to claim 6, it is characterised in that described
Membrane chromatography material shape be tabular or hollow fiber.
8. a kind of membrane chromatography material removed for water body micropollutants according to claim 6, it is characterised in that described
Membrane chromatography material aperture between 0.002-10 μm.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111282459A (en) * | 2020-04-02 | 2020-06-16 | 贵州省材料产业技术研究院 | Casting solution, preparation method thereof, membrane with BPA (bisphenol A) selective separation function, preparation method and application thereof |
| CN112499717A (en) * | 2020-12-10 | 2021-03-16 | 江南大学 | Application of polymer containing film in dye adsorption |
| WO2021062935A1 (en) * | 2019-09-30 | 2021-04-08 | 宁波方太厨具有限公司 | Water purifier |
| CN113769589A (en) * | 2021-09-02 | 2021-12-10 | 重庆大学 | Preparation process of integrated synthetic filter membrane suitable for suction filtration of jatropha curcas plant insulating oil |
| CN115691670A (en) * | 2022-08-16 | 2023-02-03 | 广东省科学院微生物研究所(广东省微生物分析检测中心) | River ecosystem health evaluation method based on microbial community specific response |
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| CN111282459A (en) * | 2020-04-02 | 2020-06-16 | 贵州省材料产业技术研究院 | Casting solution, preparation method thereof, membrane with BPA (bisphenol A) selective separation function, preparation method and application thereof |
| CN112499717A (en) * | 2020-12-10 | 2021-03-16 | 江南大学 | Application of polymer containing film in dye adsorption |
| CN113769589A (en) * | 2021-09-02 | 2021-12-10 | 重庆大学 | Preparation process of integrated synthetic filter membrane suitable for suction filtration of jatropha curcas plant insulating oil |
| CN115691670A (en) * | 2022-08-16 | 2023-02-03 | 广东省科学院微生物研究所(广东省微生物分析检测中心) | River ecosystem health evaluation method based on microbial community specific response |
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