WO2014178655A1 - Membrane d'osmose directe comportant un agent inducteur, son procédé de production et dispositif d'osmose directe l'intégrant - Google Patents

Membrane d'osmose directe comportant un agent inducteur, son procédé de production et dispositif d'osmose directe l'intégrant Download PDF

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Publication number
WO2014178655A1
WO2014178655A1 PCT/KR2014/003866 KR2014003866W WO2014178655A1 WO 2014178655 A1 WO2014178655 A1 WO 2014178655A1 KR 2014003866 W KR2014003866 W KR 2014003866W WO 2014178655 A1 WO2014178655 A1 WO 2014178655A1
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Prior art keywords
forward osmosis
osmosis membrane
inducer
layer
membrane
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PCT/KR2014/003866
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English (en)
Korean (ko)
Inventor
박유인
남승은
Original Assignee
한국화학연구원
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Priority claimed from KR1020130048457A external-priority patent/KR101357670B1/ko
Priority claimed from KR1020140008231A external-priority patent/KR101511232B1/ko
Application filed by 한국화학연구원 filed Critical 한국화학연구원
Publication of WO2014178655A1 publication Critical patent/WO2014178655A1/fr

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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
    • B01D69/10—Supported membranes; Membrane supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/002—Forward osmosis or direct osmosis

Definitions

  • Intrinsic forward osmosis membrane method for preparing the same and forward osmosis device comprising the same
  • the present invention relates to an inductive substance-integrated forward osmosis membrane, a method for preparing the same, and an forward osmosis apparatus including the same.
  • forward osmosis is performed through a separation membrane similar to the conventional reverse osmosis membrane.
  • one side of the semipermeable membrane has a chemical complex, which is in contact with a mixed water to be treated, including salt, such as seawater, while the other side is in contact with an inductive solution containing an inducer having a higher chemical potential than the common water. Separation is achieved by osmotic pressure generated by the difference in potential.
  • This forward osmosis membrane process is to treat the inlet (Feed side; seawater, wastewater, etc.) around the separation membrane that can remove salts, such as the conventional reverse osmosis membrane Permeate side; a draw solution comprising a draw material that can induce osmotic pressure. It is composed of an induction solution regeneration device for separating a draw solution.
  • the induction solution regeneration apparatus is configured to circulate the induction solution through the permeate of the separation membrane through the process of separating, recovering and dissolving draw material from the permeate.
  • CTA membrane cellulose-based polymer caption
  • HTI's CTA membrane is commercially available in the form of a sheet membrane.
  • the cartridge type separator is designed to maintain mechanical strength by having a mesh embedded therein, and may be characterized by a symmetrical structure based on the mesh of the separator.
  • the pouch type separator is an asymmetric membrane manufactured by casting CTA polymer on a dense nonwoven fabric.
  • the HTI company's forward osmosis membrane has a relatively good salt rejection ratio but NaCl 0.6 mol.
  • the water permeability of the reference induction solution was about 7 LMH, indicating a very low water permeability. Therefore, studies related to the development of forward osmosis membranes at home and abroad are being conducted in various ways.
  • Solutes currently being studied are organic draw solutes as methyl imidazole derivatives, inorganic draw solutes as ammonia bicarbonate and Particle draw solutes include magnetic nanoparticles (MNP) coated with iron (III) acetylacetonate [Fe (acac) 3] on TEG, 2-pyrrol idone or PAA.
  • MNP magnetic nanoparticles coated with iron (III) acetylacetonate [Fe (acac) 3] on TEG, 2-pyrrol idone or PAA.
  • the inventors of the present invention while studying the separation membrane for forward osmosis and the process using the same, if the preparation of the membrane by embedding the inducer in the separation membrane, the forward osmosis without the separation recovery process of the inducer
  • the present invention was completed by knowing that the energy efficiency of the process steps and processes can be improved.
  • An object of the present invention is to provide a forward osmosis membrane containing an inducer.
  • an object of the present invention is to provide a method for producing the induction material-intrinsic forward osmosis membrane.
  • an object of the present invention is to provide a forward osmosis device comprising an inductive material-integrated forward osmosis membrane.
  • an object of the present invention is to provide a forward osmosis method using the forward osmosis device.
  • Porous support layer Physically or chemically fixed to one surface of the porous media;
  • ⁇ 31> selected from the group consisting of polymer-coated particles, polymer type ionic liquids, ion exchange resins, insoluble salts containing metal oxides, and polyelectrolytes.
  • An inducer layer comprising an inducer inducing osmotic pressure of one species of fish;
  • induction material-integrated forward osmosis membrane characterized in that it comprises an active layer coated on the induction material layer;
  • ⁇ 35> selected from the group consisting of particles coated with a polymer causing an osmotic pressure, a polymeric ionic liquid, an ion exchange resin, an insoluble salt containing a metal oxide, and a polyelectrolyte.
  • Preparing one or more osmotic-induced inducers to form the inducer layer by physically or chemically fixing the inducer to one surface of the porous support layer (step 1);
  • An inlet part including an inlet for inflow and an outlet for inflow of the influent, an inlet-type forward osmosis membrane in contact with the inflow material, and a permeate part in contact with the other side of the separator, wherein the inflow part
  • It provides a forward osmosis device comprising an intrinsic material-type forward osmosis membrane comprising a; and a vacuum pump connected to the permeation unit, and flowing the permeate solution passed through the separation membrane to the permeation unit.
  • step 1 Performing forward osmosis by supplying inflow water to the inflow portion of the forward osmosis cell (step 2); And
  • step 3 of flowing the permeate solution introduced into the osmosis in step 2 to the permeation unit using the electroporation pump.
  • the inducing material for generating osmotic pressure is embedded in the membrane, so the permeate solution that has passed through the membrane is not mixed with the inducing material as in the conventional method, so it is necessary to install an induction solution regeneration device for separating the same. Therefore, there is an effect that the economic efficiency of the process can be improved.
  • FIG. 1 is a schematic view showing a conventional forward osmosis membrane process
  • Figure 2 is a schematic diagram showing the cross-section of the membrane in the case of using the particles coated with a polymer for inducing osmotic pressure as the inducer in the intrinsic material-intrinsic forward osmosis membrane according to the present invention
  • FIG. 3 is a schematic view showing a cross section of the separator in the case of using a polymer type ionic liquid as the inducer in the inducer-intrinsic forward osmosis membrane according to the present invention
  • 4 is a cross-sectional view of an inductive material-integrated forward osmosis membrane according to the present invention observed with a scanning electron microscope.
  • the present invention is a.
  • a porous support layer Physically or chemically fixed to one surface of the porous support;
  • ⁇ 65> selected from the group consisting of particles coated with a polymer causing an osmotic pressure, a polymer type ionic liquid, an ion exchange resin, an insoluble salt containing a metal oxide, and a polyelectrolyte.
  • An inducer layer comprising an inducer causing one or more osmotic pressures;
  • induction material-integrated forward osmosis membrane characterized in that it comprises an active layer coated on the induction material layer;
  • Inducer-intrinsic forward osmosis membrane includes a porous support layer.
  • the porous support layer supports the inducer layer inducing osmotic pressure, and also has a porosity, thereby providing a passage through which water permeated through the osmotic phenomenon can be moved.
  • the porous support layer may be a finger like structure or a sponge 1 ike structure.
  • the porous support is polysulfone (PSf, polysulfon), polyisulfone (PES, polyethersulfone), polyvinylidene fluoride (PVDF, polyvinyl), It is preferably made of one selected from the group consisting of polyimide (PI, polyimide), polyimide (PEI, polyetherimide), polypropylene (PP, polypropylene) and polyethylene (PE, polyethylene), but is not limited thereto. no.
  • the porous supports can be easily prepared in a porous manner, such as by phase transition, and can be used as a support because of excellent physicochemical properties.
  • the intrinsic forward osmosis membrane embedded in the inducer of the present invention is physically or chemically fixed on one surface of the porous support, and is a particle coated with a polymer that induces osmotic pressure, a polymer type diluent liquid, and an ion exchange resin.
  • an inducer layer comprising one or more osmotic inducers selected from the group consisting of insoluble salts comprising metal oxides and polyelectrolytes.
  • the forward osmosis membrane includes the inducer layer, It can provide power to generate forward osmosis.
  • the permeate part is configured with an induction solution regeneration device for separating the permeate and permeate solution (draw solution) transmitted through the separation membrane.
  • the induction solution regeneration device is configured to circulate the permeate of the separator throughout the process of separating, recovering and dissolving draw solute from the permeate.
  • the inducing material for generating osmotic pressure is embedded in the membrane, the permeate solution that has permeated through the separation membrane, as in the conventional method, is not mixed with the inducing material, so as to separate it. There is no need to install them, and thus there is an effect that the economic efficiency of the process can be improved.
  • the inducer may be, for example, a particle coated with a polymer that induces osmotic pressure or a polymer ionic liquid, and the particle coated with a polymer that induces osmotic pressure may have a ground like structure or It may be formed on a porous support layer of a sponge like structure.
  • the polymer for inducing osmotic pressure may be polyacrylonitrile, polyacrylic acid, polyacrylate, polymethylmethacrylate, polyethyleneimide, or the like.
  • the vinyl acetate (polyvinylacetate) is selected from the group consisting of one or a combination thereof, but is not limited thereto.
  • the polyacrylonitrile may be a synthetic polymer co-condensed with a hydrophilic compound having any one hydrophilic functional group selected from the group consisting of hydroxy group, sulfonated group, carbonyl group, acetate group and ester group.
  • the particles may be magnetic nanoparticles, but is not particularly limited as long as the particles may not form resistance when they are used as an inducer layer by coating the osmotic pressure-inducing polymer layer to provide resistance to influent. Do not. ⁇ 82>
  • the polymeric ionic liquid may be physically or chemically fixed on the porous support to induce an osmotic pressure.
  • the polymer type ionic liquid may include an organic cation containing an imidazolium group; Or a polymeric ionic compound which is an organic or inorganic anion containing an imidazolium group.
  • the polymer ionic liquid may be composed of a polymer ionic liquid having various physical and chemical properties according to a combination of cations and silver.
  • specific examples of the polymer type ionic liquid cation containing an imidazolium group include poly (1-vinyl-3-alkylimidazolium), poly (1-vinyl-2-alkylimidazolium), and poly (1 -Allyl-3-alkylimidazolium), poly (1-allyl-2-alkylimidazolium), poly (1- (meth) acryloyloxy-3-alkylimidazolium) and the like.
  • alkyl is hydrogen or a straight chain of d to C 20 . It may be a side chain, a cyclic hydrocarbon, but optionally N, 0, S,
  • It may contain one or more hetero atoms, such as P.
  • the inducer may be, for example, a cation exchange resin or an anion exchange resin having ion exchange ability, and include manganese oxide (Mn0 2 ), barium sulfate (BaS0 4 ), copper sulfide (CuS), and carbonic acid.
  • Mn0 2 manganese oxide
  • BaS0 4 barium sulfate
  • CuS copper sulfide
  • carbonic acid carbonic acid.
  • the induction material is preferably not extracted by the physical force in the process of flowing the water permeated by using a vacuum pump on the porous support layer side. It is desirable to fix physically or chemically to the porous support through chemical bonding.
  • the fixing method may be appropriately selected depending on the kind of inducer used.
  • the polymer which induces osmotic pressure as an inducer to the separator when only the polymer which induces osmotic pressure as an inducer to the separator is coated on the porous support layer, the polymer may form a dense layer to provide resistance to the movement of water introduced through the separator. Therefore, by coating the particles to induce osmotic pressure on the particles and to form them on the porous support, it is possible to reduce the occurrence of resistance to the movement of the water flowing due to the space formed between the particles while causing the osmotic pressure.
  • the inductive material-integrated forward osmosis membrane according to the present invention includes an active layer coated on the induction material layer.
  • the active layer should be a dense layer coated on the inducer in a thin film form to exclude impurities such as salts from the influent and selectively permeate only pure water.
  • the active layer is positioned to face the influent supplied to the forward osmosis membrane cell.
  • the material of the active layer is preferably one selected from the group consisting of polyamide (PA, polyamide), cellulose acetate (CA, cellulose acetate) and cellulose triacetate (CTA).
  • PA polyamide
  • CA cellulose acetate
  • CTA cellulose triacetate
  • the intrinsic material-type forward osmosis membrane according to the present invention may be in the form of a sheet membrane or a hollow fiber membrane, but is not limited thereto.
  • step 1 Selected from the group consisting of particles coated with a polymer causing an osmotic pressure, a polymeric ionic liquid, an ion exchange resin, an insoluble salt containing a metal oxide, and a polyelectrolyte.
  • Preparing an inducing material that causes one or more osmotic pressures to be physically or chemically fixed to one surface of the porous support layer to form an inducing material layer step 1:
  • step 1 coating the active layer on the surface of the inducer layer formed in step 1 (step 1)
  • the step 1 includes particles coated with a polymer that induces osmotic pressure, a polymer ionic liquid, an ion exchange resin, and a metal oxide. Induced by inducing at least one osmotic pressure-inducing material selected from the group consisting of an insoluble salt (Insoluble salt) and a polymer electrolyte (Polyelectrolyte) comprising the porous support layer and the induction by physically or chemically fixing the inductive material on one surface Forming a material layer.
  • a polymer that induces osmotic pressure selected from the group consisting of an insoluble salt (Insoluble salt) and a polymer electrolyte (Polyelectrolyte) comprising the porous support layer and the induction by physically or chemically fixing the inductive material on one surface Forming a material layer.
  • the porous support layer functions to support the inducer layer providing power for generating osmotic pressure, and provides a passage through which the water permeated by the osmosis phenomenon can be moved by having a porosity.
  • the inducer is not extracted by physical force in the process of flowing the water permeated using the vacuum pump from the porous support layer. Accordingly, it is preferable to physically or chemically fix the porous support through physical adhesion, chemical adhesion, and chemical bonding.
  • the fixing method may be appropriately selected depending on the kind of inducer used.
  • the inducer of step 1 is a particle coated with a polymer that induces osmotic pressure, polymer type ionic liquid, ion exchange resin (Ion exchange resin), an insoluble salt containing a metal oxideol, and a polymer electrolyte (Polyelectrolyte) is preferably at least one selected from the group consisting of.
  • the polymer that induces osmolality as an inducer to the separator When only the polymer that induces osmolality as an inducer to the separator is coated on the porous support layer, the polymer forms a dense layer and can provide resistance to the movement of water introduced through the separator. Therefore, by coating the polymer that induces osmotic pressure on the particles and to form it on the porous support, it is possible to reduce the occurrence of resistance to the movement of the incoming water due to the space formed between the particles while causing the osmotic pressure.
  • the polymer causing the osmotic pressure is polyacrylonitrile
  • polyacrylonitrile polyacrylic acid
  • PAA polyacrylate
  • polymethylmethacrylate polyethyleneimide
  • eel lulose acetate polymethylmethacrylate
  • polyethyleneimide polyethyleneimide
  • eel lulose acetate polyethyleneimide
  • cellulose triacetate polyacrylonitrile
  • polyvinylpyrolidone poly It is preferably one or more co-polymers selected from the group consisting of ethylene glycol (polyethyleneglycol), sulfonated polysulfone (polysul fone), polyethylene oxide (polyethylene oxide) and polyvinylacetate (polyvinylacetate), but is not limited thereto. It is not.
  • the polyacrylonitrile may be a synthetic polymer copolymerized with a hydrophilic compound having any one hydrophilic functional group selected from the group consisting of hydroxyl, sulfonated, carbonyl, acetate and ester groups.
  • the particles may be magnetic nanoparticles, but are not particularly limited as long as the particles may not provide resistance to the influent by forming a space when used as an inducer layer by coating the osmotic polymer. Do not.
  • the polymer type ionic liquid when the polymer type ionic liquid is physically or chemically fixed on the porous support, the polymer forms a polymer matrix on the porous support layer, and the polymer type heterogeneous liquid contained therein may cause osmotic pressure. .
  • the polymeric ionic liquid comprises an organic cyanide containing an imidazolium group; Or an organic or inorganic anion containing an imidazolium group.
  • the polymer type ionic liquid may be composed of a polymer type ionic liquid having various physical and chemical properties according to a combination of cations and anions.
  • specific examples of the polymerizable bivalent liquid cation containing imidazole lithium groupol include poly (1-vinyl-
  • alkyl may be hydrogen or d to C 20 linear, branched, 3 ⁇ 4 hydrocarbon, but optionally N, 0, S,
  • It may contain one or more heteroatoms of P.
  • Polymeric ionic liquid anions include CH 3 C0C and CF 3 C (Xi, CH 3 SO 3 " , CF3SO3 "
  • the inducer is, for example, a cation exchange resin having ion exchange ability.
  • a cation exchange resin having ion exchange ability.
  • an anion exchange resin a manganese oxide (Mn), barium sulfate (BaS0 4), copper sulfide (CuS), carbonic acid magnesium (MgC0 3), calcium carbonate (CaC0 3), carbonate (Ag 2 C0 3 )
  • insoluble salts such as hydroxide hydroxide (Mg (0H) 2 ), polysaccharides such as carrageenan, proteins, and polyelectrolytes including synthetic polymers such as polymethacrylic acid.
  • the step 2 is a step of coating the active layer on the surface of the inducer layer formed in step 1.
  • the coating may be performed by a wet coating method capable of coating a hydrophilic polymer material in a thin film form, and may be a known method such as answer coating, spin coating, spray coating, and interfacial polymerization. Continuous processes or handy coating can be used.
  • the material of the active layer in step 2 is polyamide (PA, polyamide), the cell is one selected from the group consisting of cellulose acetate (CA, cellulose acetate) and cellulose triacetate (CTA). Preferred but not limited to this.
  • the present invention also provides
  • an inflow part including an inflow inflow port and an inflow port through which the inflow water flows out, the induction material-integrated forward osmosis membrane contacting with one side of the inflow water and a permeation part in contact with the other side of the separation membrane, wherein the inflow water part A cell for forward osmosis in contact with the active layer of the separator and in contact with the porous support layer of the separator;
  • a forward osmosis device comprising an inductive material-integrated forward osmosis membrane comprising: a vacuum pump connected to the permeation unit and flowing a permeate solution permeated through the separation membrane to the permeation unit.
  • the forward osmosis apparatus is the inlet and inflow water inflow An inlet part including an outlet, which is in contact with the inlet part, and includes a permeate part in contact with the inductive material-intrinsic forward osmosis membrane and the other side of the separator, wherein the influent part is in contact with the active layer of the separator, It includes a cell for forward osmosis in contact with the porous support layer of the separator.
  • Inflow water may be supplied through the inlet port in the forward osmosis cell.
  • osmotic phenomenon may occur in the induction material-integrated forward osmosis membrane contacting the inflow portion. This induces osmotic pressure because the inducer is embedded in the separator, so that only water molecules excluding impurities such as salts included in the influent flow into the active layer of the separator. The water molecules passing through the active layer may move to the transmission part through the inducer layer and the porous support layer.
  • the forward osmosis apparatus includes a vacuum pump connected to the permeation unit and flowing the permeate solution permeated through the separation membrane to the permeation unit.
  • Membrane according to the present invention induces the osmotic pressure inherent to the induction material to provide the power to penetrate the separation membrane. After passing through the active layer of the membrane, the water molecules staying in the inducer layer and the porous support layer may flow, and a vacuum pump may be connected to provide additional power for moving them to the permeation part of the forward osmosis cell. In addition, a sweeping gas may be used.
  • Step 1 Mount the above-mentioned intrinsic forward osmosis membrane in the forward osmosis cell, wherein the active layer of the separator contacts the inlet of the forward osmosis cell and the porous support layer of the separator contacts the permeate of the forward osmosis cell.
  • the forward osmosis in step 2 is introduced into the permeate solution flows to the permeation unit using the electroporation pump (step 3); provides an forward osmosis method comprising a.
  • the step 1 is equipped with the inducer-type forward osmosis membrane in the forward osmosis cell, wherein the active layer of the membrane is in contact with the influent portion of the forward osmosis cell and The porous support layer of the separation membrane is mounted in contact with the permeation part of the forward osmosis cell.
  • the separator is disposed such that the active layer faces the unique water part, so that water molecules included in the influent may pass through the active layer of the separator in a subsequent step.
  • step 2 is a step of performing forward osmosis by supplying inflow water to the inflow portion of the forward osmosis cell.
  • Inlet water may be supplied through the inlet port in the forward osmosis cell. If a certain amount of inflow water is supplied to the influent part, osmotic phenomenon may occur in the intrinsic forward osmosis membrane of the above-described inducer in contact with the influent part. This induces osmotic pressure because the inducer is embedded in the separator, so that only 1: molecules permeate the active layer of the separator except for impurities such as salts contained in the influent. The water molecules passed through the active dance may move to the permeation part through the inducer layer and the porous support layer.
  • step 3 is a step of flowing the permeate solution introduced through the forward osmosis in the step 2 to the permeation part of the cell for forward osmosis using a electroporation pump.
  • the separation membrane according to the present invention after the water molecules permeate the active layer, the water molecules staying in the inducer layer and the porous support layer are flown by using a vacuum pump, and in order to generate an osmotic phenomenon in addition to the inducer. It can provide additional power.
  • Step 1 20% by weight of polyvinyl idene fluoride (PVDF), 65% by weight of the solvent, n-Methyl pyrrolidone (polyvinyl idene fluoride), polyethylene glycol as a pore-forming agent Glycol) was mixed in a composition of 15 weight 3 ⁇ 4 to prepare a coating solution, which was then cast on a non-woven fabric fixed to a glass plate. At this time, the coating solution was applied using a doctor blade (doctor blade) set to a thickness of 500, on a nonwoven fabric basis.
  • PVDF polyvinyl idene fluoride
  • n-Methyl pyrrolidone polyvinyl idene fluoride
  • polyethylene glycol as a pore-forming agent Glycol
  • non-solvent-induced phase separation which is a flat membrane-type separator in which a porous support having a magnetic structure is formed on a nonwoven fabric and a porous and inducer layer is formed thereon.
  • the non-solvent-induced phase transfer method was performed by immersing in a coagulation bath containing ultrapure water, which is a non-solvent.
  • Step 2 13% by weight cellulose triacetate (CTA)
  • an intrinsic material-integrated forward osmosis membrane was prepared by forming an active layer by coating on a flat membrane-type porous support including the inducer prepared in step 1 above.
  • a porous support was prepared, on which 10% by weight of polyvinyl alcohol (PVA, polyvinylalcoho) ol, 45% by weight of deionized water as a solvent, and iron ( ⁇ ) )
  • PVA polyvinyl alcohol
  • ⁇ iron
  • a solution obtained by coating polyacrylic acid on the surface of iron (ni) acetylacetonate and heat-processing at about 27 CTC (particle size about 30 nm) in a composition of 45% by weight was prepared on the porous support.
  • a forward osmosis membrane was prepared in the same manner as in Example 1. >
  • Example 3 Preparation of Forward Osmosis Membrane 3 >
  • a porous support including polyvinylidene fluoride was prepared, and then poly (1-vinyl-2-methylimidazolium) was applied thereon to form an inducer layer.
  • the forward osmosis membrane was prepared in the same manner as in Example 1.
  • Step 1 20% by weight of polyvinylidene fluoride (PVDF), 65% by weight of solvent, n-Methyl Pyrrolidone, and polyethylene glycol as pore-forming agent Glycol) was mixed in a composition of 15% by weight to prepare a coating solution, and then cast on a non-woven fabric fixed to a glass plate to prepare a porous support.
  • the coating solution was applied using a doctor blade set to a thickness of 500 urn on a nonwoven fabric basis.
  • a non-membrane-induced phase separation (NIPS) method was used to prepare a flat membrane-type separator in which a porous inducer layer was formed.
  • the non-solvent induction phase transition method was performed by immersing in a coagulation bath containing ultrapure water, which is a non-solvent.
  • Step 2 13% by weight cellulose triacetate (CTA),
  • an intrinsic material-integrated forward osmosis membrane was prepared by forming an active layer by coating on a flat membrane-type porous support including the inducer prepared in step 1 above.
  • Example 4 The same procedure as in Example 4 was performed except that the solution including the anion exchange resin was applied on the porous support in Step 1 of Example 4 to prepare an inductive material-integrated forward osmosis membrane.
  • Example 4 In the same manner as in Example 4 except that the solution containing manganese oxide (Mn0 2 ) on the porous support in step 1 of Example 4 was carried out A type forward osmosis membrane was prepared.
  • Example 4 The same procedure as in Example 4 was carried out except that the solution containing Magnesium Carbonate (MgC0 3 ) was applied on the porous support in Step 1 of Example 4 to obtain an inducible intrinsic forward osmosis membrane. Prepared.
  • MgC0 3 Magnesium Carbonate
  • Example 4 except that the solution containing calcium carbonate (CaC0 3 ) on the porous support in step 1 of Example 4 was carried out in the same manner as in Example 4 to prepare an intrinsic material-type forward osmosis membrane. .
  • Example 7 In the same manner as in Example 4, except that a solution containing silver carbonate (Ag 2 C0 3 ) is applied on the porous support in Step 1 of Example 4 to prepare an inductive material-integrated forward osmosis membrane. It was.
  • Example 4 In the same manner as in Example 4 except for applying a carrageenan solution on the porous support in Step 1 of Example 4, an intrinsic forward osmosis separator was prepared.
  • Example 4 The same procedure as in Example 4 was performed except that the polymethacrylate solution was applied on the porous support in Step 1 of Example 4 to obtain an intrinsic forward osmosis membrane. Prepared.
  • Step 1 Mount the forward osmosis separator prepared in Examples 1 to 14 in the forward osmosis cell, wherein the active layer of the separator contacts the inlet of the forward osmosis sal and the porous support of the separator. The layer was mounted in contact with the permeate of the forward osmosis sal.
  • Step 2 After supplying ultrapure water to the inlet of the forward osmosis cell at a flow rate of 50 ml / min, forward osmosis was performed.
  • Step 3 The ultrapure water permeated was recovered at 5 l / m 2 h by flowing into the permeation unit by using a permeate solution in a forward osmosis solution introduced in step 2 above.
  • the forward osmosis membrane prepared according to the present invention is a porous support layer; Inducer layer; And it can be seen that it has a structure consisting of an active layer.

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  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

La présente invention concerne une membrane d'osmose directe comportant un agent inducteur et comprenant une couche correspondant à un corps de support poreux ; une couche d'agent inducteur, physiquement ou chimiquement fixée sur une face de la couche correspondant au corps de support poreux et contenant un ou plusieurs agents inducteurs destinés à induire l'osmose et choisis dans le groupe constitué d'une particule revêtue d'un polymère induisant l'osmose, d'un liquide ionique de type polymère, d'une résine échangeuse d'ions, d'un sel insoluble contenant un oxyde métallique et d'un polyélectrolyte ; et une couche active recouvrant ladite couche d'agent inducteur. Selon la présente invention, une solution ayant perméé à travers la membrane de façon traditionnelle ne se mélange pas avec l'agent inducteur, car ledit agent inducteur destiné à induire l'osmose est présent à l'intérieur de la membrane, ce qui évite d'avoir à utiliser un dispositif de régénération de la solution d'induction en vue de la séparation de la solution ayant perméé. En conséquence, il est possible d'améliorer l'efficacité économique du procédé.
PCT/KR2014/003866 2013-04-30 2014-04-30 Membrane d'osmose directe comportant un agent inducteur, son procédé de production et dispositif d'osmose directe l'intégrant WO2014178655A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR1020130048457A KR101357670B1 (ko) 2013-04-30 2013-04-30 유도물질 내재형 정삼투 분리막, 이의 제조방법 및 이를 포함하는 정삼투 장치
KR10-2013-0048457 2013-04-30
KR1020140008231A KR101511232B1 (ko) 2014-01-23 2014-01-23 유도물질 내재형 정삼투 분리막, 이의 제조방법 및 이를 포함하는 정삼투 장치
KR10-2014-0008231 2014-01-23

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107774136A (zh) * 2016-08-30 2018-03-09 财团法人工业技术研究院 用于正渗透程序的离子液体与正渗透程序

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005224678A (ja) * 2004-02-12 2005-08-25 Gohda Mizushori Gijutsu Kenkyusho:Kk 膜分離装置及び運転管理方法
JP2010527772A (ja) * 2007-05-26 2010-08-19 ストニーブルック ウォーター ピュリフィケーション セルロース又はセルロース誘導体を含む高流束流体分離膜
KR100990168B1 (ko) * 2010-07-16 2010-10-29 한국과학기술연구원 정삼투막 및 그 제조방법
KR101068239B1 (ko) * 2011-02-15 2011-09-28 한국과학기술연구원 이중활성층 정삼투막을 이용한 해양방류장치 및 방법
KR20120031713A (ko) * 2010-09-27 2012-04-04 현대중공업 주식회사 정삼투막 및 그 제조방법
KR101179490B1 (ko) * 2011-01-03 2012-09-07 웅진케미칼 주식회사 해수담수용 정삼투막 및 그 제조방법
KR20130002837A (ko) * 2011-06-29 2013-01-08 웅진케미칼 주식회사 유량이 개선된 정삼투 복합막의 제조방법 및 그로부터 제조된 정삼투 복합막

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005224678A (ja) * 2004-02-12 2005-08-25 Gohda Mizushori Gijutsu Kenkyusho:Kk 膜分離装置及び運転管理方法
JP2010527772A (ja) * 2007-05-26 2010-08-19 ストニーブルック ウォーター ピュリフィケーション セルロース又はセルロース誘導体を含む高流束流体分離膜
KR100990168B1 (ko) * 2010-07-16 2010-10-29 한국과학기술연구원 정삼투막 및 그 제조방법
KR20120031713A (ko) * 2010-09-27 2012-04-04 현대중공업 주식회사 정삼투막 및 그 제조방법
KR101179490B1 (ko) * 2011-01-03 2012-09-07 웅진케미칼 주식회사 해수담수용 정삼투막 및 그 제조방법
KR101068239B1 (ko) * 2011-02-15 2011-09-28 한국과학기술연구원 이중활성층 정삼투막을 이용한 해양방류장치 및 방법
KR20130002837A (ko) * 2011-06-29 2013-01-08 웅진케미칼 주식회사 유량이 개선된 정삼투 복합막의 제조방법 및 그로부터 제조된 정삼투 복합막

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107774136A (zh) * 2016-08-30 2018-03-09 财团法人工业技术研究院 用于正渗透程序的离子液体与正渗透程序
CN107774136B (zh) * 2016-08-30 2020-10-27 财团法人工业技术研究院 用于正渗透程序的离子液体与正渗透程序

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