CN107162108A - A kind of ionic liquid for positive process of osmosis draws liquid and its circulation regeneration method and system - Google Patents
A kind of ionic liquid for positive process of osmosis draws liquid and its circulation regeneration method and system Download PDFInfo
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- CN107162108A CN107162108A CN201710384957.4A CN201710384957A CN107162108A CN 107162108 A CN107162108 A CN 107162108A CN 201710384957 A CN201710384957 A CN 201710384957A CN 107162108 A CN107162108 A CN 107162108A
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- 239000007788 liquid Substances 0.000 title claims abstract description 138
- 239000002608 ionic liquid Substances 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000008569 process Effects 0.000 title claims abstract description 26
- 238000011069 regeneration method Methods 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 59
- 239000000463 material Substances 0.000 claims abstract description 17
- 239000007864 aqueous solution Substances 0.000 claims abstract description 14
- 230000008929 regeneration Effects 0.000 claims abstract description 11
- 238000010790 dilution Methods 0.000 claims description 28
- 239000012895 dilution Substances 0.000 claims description 28
- 230000035699 permeability Effects 0.000 claims description 23
- 239000013505 freshwater Substances 0.000 claims description 11
- 150000002500 ions Chemical class 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 10
- 230000001351 cycling effect Effects 0.000 claims description 3
- 238000005191 phase separation Methods 0.000 claims description 3
- 238000007865 diluting Methods 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000012071 phase Substances 0.000 abstract description 25
- 238000001764 infiltration Methods 0.000 abstract description 14
- 230000008595 infiltration Effects 0.000 abstract description 13
- 238000005516 engineering process Methods 0.000 abstract description 11
- 239000008346 aqueous phase Substances 0.000 abstract description 7
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 230000004907 flux Effects 0.000 abstract description 4
- 230000003204 osmotic effect Effects 0.000 abstract description 4
- 238000004064 recycling Methods 0.000 abstract description 4
- 230000008439 repair process Effects 0.000 abstract description 3
- 238000010792 warming Methods 0.000 abstract description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- -1 phosphonium ion Chemical class 0.000 description 6
- 235000002639 sodium chloride Nutrition 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 3
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 235000012538 ammonium bicarbonate Nutrition 0.000 description 3
- 239000001099 ammonium carbonate Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229950004288 tosilate Drugs 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- WXJVQQPLIMTRFK-UHFFFAOYSA-N C(CCC)[P](CCCC)(CCCC)CCCC Chemical compound C(CCC)[P](CCCC)(CCCC)CCCC WXJVQQPLIMTRFK-UHFFFAOYSA-N 0.000 description 1
- 239000005715 Fructose Substances 0.000 description 1
- 229930091371 Fructose Natural products 0.000 description 1
- RFSUNEUAIZKAJO-ARQDHWQXSA-N Fructose Chemical compound OC[C@H]1O[C@](O)(CO)[C@@H](O)[C@@H]1O RFSUNEUAIZKAJO-ARQDHWQXSA-N 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 229940092714 benzenesulfonic acid Drugs 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000009292 forward osmosis Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 150000005451 methyl sulfates Chemical class 0.000 description 1
- 229950000081 metilsulfate Drugs 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- TUQOTMZNTHZOKS-UHFFFAOYSA-N tributylphosphine Chemical compound CCCCP(CCCC)CCCC TUQOTMZNTHZOKS-UHFFFAOYSA-N 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- 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
- C02F1/445—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by forward osmosis
-
- 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
-
- 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
- C02F1/02—Treatment of water, waste water, or sewage by heating
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Liquid and its circulation regeneration method and system are drawn the present invention relates to a kind of ionic liquid for positive process of osmosis, it is the ionic liquid aqueous solution with low critical consolute temperature that this, which draws liquid, material liquid is drawn under the conditions of less than its low critical consolute temperature, after material liquid is concentrated, draw liquid and be divided into ionic liquid body phase and aqueous phase by being warming up to more than low critical consolute temperature, the ionic liquid after point liquid processing is recycled to be used in positive process of osmosis.The present invention has low critical consolute temperature and the property compared with Thief zone gesture using ionic liquid aqueous solution, realize the regeneration recycling that liquid is drawn under temperate condition, using low-grade heat source or heat sources, greatly reduce the energy consumption that liquid regenerative process is drawn in positive infiltration, the economy of positive infiltration technology is improved, while having the characteristics of osmotic pressure is high, water flux is big.
Description
Technical field
The present invention relates to water-treatment technology field, and in particular to a kind of ionic liquid for positive process of osmosis draw liquid and
Its circulation regeneration method and system.
Background technology
Positive infiltration technology is separated using the difference in chemical potential of film both sides solution reclaimed water to material, because it need not be additional
Pressure, low energy consumption, resistant to pollution feature, are increasingly becoming a kind of emerging membrane technology and receive more and more attention in the world,
Had a wide range of applications in industries such as desalinization, green energy resource, Aero-Space, food medicine concentrations.
It is to influence one of key factor of positive infiltration technology that liquid is drawn in positive infiltration, and liquid is drawn in conventional positive infiltration at present includes
Ammonium hydrogen carbonate draws liquid, and the inorganic salts such as sodium chloride, sodium sulphate, magnesium sulfate draw the biomolecule such as liquid, and glucose, fructose and drawn
Take liquid.Ammonium bicarbonate breaks down is that carbon dioxide and ammonia are reclaimed by the method for rectifying as drawing liquid by ammonium hydrogen carbonate,
One side ammonia is corrosive gas, has certain hidden danger to safe operation and environmental pollution, equipment requirement is also higher；The opposing party
Its regenerative process energy consumption of face is higher, needs amount of heat, and foam easy to foaming, the easy residual contamination production water of ammonia.Inorganic salts draw liquid again
Raw process generally uses counter-infiltration recovery process, and by osmotic pressure influence, inorganic salts, which draw liquid, can only be concentrated into more than 8-12%, water
The rate of recovery is relatively low.Liquid is drawn with carbohydrate, beverage powder, the liquid that draws after dilution is available for directly drinking, without regeneration, but such draws
Liquid is taken to be typically used as drawing water bag, it is adaptable to military affairs, outdoor lifesaving etc., without universality.
The excellent liquid that draws need to be with two attributes, and on the one hand it will have enough permeable pressure heads between material liquid, this
It is the driving force of positive process of osmosis, permeable pressure head is bigger, proceduredriven power is bigger, pure water is continuously surveyed from material liquid
Penetrate into and draw liquid side, so the osmotic pressure for drawing liquid itself directly affects the operational efficiency just permeated；On the other hand, draw
Liquid regeneration is the main energy consuming part of positive osmosis process, the complexity and the positive osmosis process of economy direct relation of regenerative process
Energy consumption and operating cost, therefore draw liquid should easier by correlation technique realize concentrate or separate, to obtain pure water simultaneously
Recycling maintains the motive force of forward osmosis.Meanwhile, draw liquid and should also possess safety non-toxic, property stabilization, reactionlessness, right
The characteristic such as film is pollution-free.
The content of the invention
For the defect of current positive infiltration technology, drawn the invention provides a kind of ionic liquid for positive process of osmosis
Liquid and its circulation regeneration method and system, have low critical consolute temperature and compared with Thief zone gesture using ionic liquid aqueous solution
Property, improves positive process of osmosis motive force and realizes the regeneration recycling that liquid is drawn under temperate condition, improve positive infiltration
The economy and commercial application potentiality of technology.
The present invention is adopted the technical scheme that to solve technical problem present in known technology：
A kind of ionic liquid for positive process of osmosis draws liquid, and it is the ion with low critical consolute temperature that this, which draws liquid,
Liquid aqueous solution, wherein, the mass fraction of ionic liquid aqueous solution intermediate ion liquid is 10%~80%.
The ionic liquid is the mixture of a kind of ionic liquid or different kinds of ions liquid.
A kind of ionic liquid for positive process of osmosis draws liquid circulation regeneration method, and this method passes through positive process of osmosis pair
After material liquid is concentrated, the ionic liquid after dilution is drawn into liquid and heated up, ionic liquid can produce lamination with water,
Ionic liquid body phase after phase separation draws liquid circulating and recovering as new ionic liquid.
Ionic liquid after dilution draws temperature control that liquid heated up at 40 DEG C~70 DEG C.
A kind of ionic liquid for positive process of osmosis draws liquid indirect regeneration, including raw water box, draws liquid case, just
Liquid case, heat exchanger, phase separator and fresh-water tank are drawn in permeability apparatus, concentrated water case, dilution；The raw water box, positive permeability apparatus and
Concentrated water case is sequentially communicated one material liquid upgrading unit of composition, and the raw water box is connected with the material liquid entrance of positive permeability apparatus,
The concentrated water case is connected with the material liquid outlet of positive permeability apparatus；It is described draw liquid case, positive permeability apparatus, dilution draw liquid case,
Heat exchanger and phase separator are sequentially communicated composition one and draw liquid cycling element, and the delivery port for drawing liquid case is filled with positive infiltration
The liquid entrance that draws put is connected, and the dilution is drawn the water inlet of liquid case and is connected with the liquid outlet of drawing of positive permeability apparatus, described
Dilution is drawn the delivery port of liquid case and is connected with the water inlet of heat exchanger, and the delivery port of the heat exchanger is connected with phase separator；Institute
The outlet for stating phase separator is divided into two-way, and branch pipe is connected with fresh-water tank all the way, another road branch pipe and the water inlet phase for drawing liquid case
Even.
The thermal source of the heat exchanger can be low-grade heat source and/or used heat.
Ionic liquid draws liquid and enters positive permeability apparatus by the road from liquid case is drawn, and the raw water in raw water box is dense
Contracting, the raw water after concentration enters concentrated water case, and the ionic liquid after dilution draws liquid and draws liquid case, heat exchanger and dilution into dilution
Draw liquid case to be connected, liquid is drawn to the ionic liquid after dilution and carries out the split-phase that ionic liquid and water are realized in heating, subsequently into
Phase separator realizes the separation of ionic liquid body phase and aqueous phase, and the aqueous phase after separation enters fresh-water tank, ionic liquid body phase warp by the road
Pipeline, which enters, draws liquid case recycling.
Compared with prior art, the present invention has the advantages and positive effects of：
The present invention is using the ionic liquid aqueous solution with low critical consolute temperature as liquid is drawn, with compared with hyperosmosis
On the basis of, it is miscible with water during using ionic liquid low temperature, temperature raise when and water stratification property, it is possible to achieve under temperate condition
The regeneration of liquid is drawn, using low-grade heat source or heat sources, the energy consumption of liquid regeneration technology is drawn in the greatly positive infiltration of reduction
With complex process degree, the practicality of positive infiltration technology is improved, while having the characteristics of osmotic pressure is high, water flux is big.
Brief description of the drawings
Fig. 1 is that ionic liquid involved in the present invention draws liquid indirect regeneration structural representation.
1st, raw water box 2, draw liquid case 3, positive permeability apparatus 4, concentrated water case
5th, liquid case 6, heat exchanger 7, phase separator 8, fresh-water tank are drawn in dilution
Embodiment
In order to further understand the content, features and effects of the present invention, hereby enumerating following examples, and coordinate accompanying drawing
Describe in detail as follows：
Embodiment 1
A kind of ionic liquid for positive process of osmosis draws liquid, and it is the ion with low critical consolute temperature that this, which draws liquid,
Liquid aqueous solution, wherein, the mass fraction of ionic liquid aqueous solution intermediate ion liquid is 10%~80%.
Ionic liquid is the mixture of a kind of ionic liquid or different kinds of ions liquid.
Ionic liquid is further illustrated herein, the cation of ionic liquid includes but is not limited to quaternary phosphonium ion, season
One or more combinations in ammonium ion, imidazol ion；The anion of ionic liquid includes but is not limited to fluorocarboxylic acid ion, length
One or more combinations in chain carboxylic acid's ion, benzene sulfonic acid ion, halide ion, amino acid ion.It should be noted that this hair
Bright ionic liquid is not limited to above-mentioned stated.
A kind of ionic liquid for positive process of osmosis draws liquid circulation regeneration method, and this method passes through positive process of osmosis pair
After material liquid is concentrated, the ionic liquid after dilution is drawn into liquid and heated up, ionic liquid can produce lamination with water,
Ionic liquid body phase after phase separation draws liquid circulating and recovering as new ionic liquid.
Ionic liquid after dilution draws temperature control that liquid heated up at 40 DEG C~70 DEG C.
A kind of ionic liquid for positive process of osmosis draws liquid indirect regeneration, including raw water box 1, draw liquid case 2,
Liquid case 5, heat exchanger 6, phase separator 7 and fresh-water tank 8 are drawn in positive permeability apparatus 3, concentrated water case 4, dilution；Raw water box 1, positive infiltration dress
Put 3 and concentrated water case 4 be sequentially communicated composition one material liquid upgrading unit, the material liquid entrance phase of raw water box 1 and positive permeability apparatus 3
Even, concentrated water case 4 is connected with the material liquid outlet of positive permeability apparatus 3；Draw liquid case 2, positive permeability apparatus 3, dilution draw liquid case 4,
Heat exchanger 5 and phase separator 7 are sequentially communicated composition one and draw liquid cycling element, and the delivery port and positive infiltration for drawing liquid case 2 are filled
The liquid entrance that draws for putting 3 is connected, and dilution is drawn the water inlet of liquid case 5 and is connected with the liquid outlet of drawing of positive permeability apparatus 3, and dilution is drawn
The delivery port of liquid case 5 is taken to be connected with the water inlet of heat exchanger 6, the delivery port of heat exchanger 6 is connected with phase separator 7；Phase separator 7
Outlet be divided into two-way, branch pipe is connected with fresh-water tank 8 all the way, and another road branch pipe is connected with drawing the water inlet of liquid case 2.
The thermal source of heat exchanger 6 can be low-grade heat source and/or used heat.
Ionic liquid draws liquid and enters positive permeability apparatus 3 by the road from liquid case 2 is drawn, by the raw water in raw water box 1
Concentration, the raw water after concentration enters concentrated water case 4, and the ionic liquid after dilution draws liquid and draws liquid case 5, heat exchanger 6 into dilution
Liquid case 5 is drawn with dilution to be connected, and liquid is drawn to the ionic liquid after dilution and carries out the split-phase that ionic liquid and water are realized in heating, so
The separation of ionic liquid body phase and aqueous phase is realized into phase separator 7 afterwards, the aqueous phase after separation enters fresh-water tank 8, ion by the road
Liquid phase entrance by the road is drawn liquid case 2 and recycled.
Embodiment 2
Tetrabutyl phosphorus tosilate ionic liquid aqueous solution is used for desalinization to draw liquid：
Salt content 35000ppm seawater is delivered to positive permeability apparatus 3 through pump in raw water box 1, through the tetrabutyl containing 43wt%
After phosphorus tosilate ionic liquid aqueous solution is drawn, 90000ppm is concentrated into concentrated water case 4, water flux is 20L/m2H,
The liquid that draws after drawing draws liquid case 5 into dilution, is then warming up to 55 DEG C by heat exchanger 6, thermal source used is to close on electric field
Recirculated cooling water, subsequently into being separated in phase separator 7, aqueous phase enters fresh-water tank 8, and ionic liquid body phase, which enters, draws liquid
The circulating and recovering of case 2.
Embodiment 3
The ionic liquid mixture aqueous solution is used to concentrate industrial wastewater to draw liquid：
Main component is 0.6mol/L Mg in raw water box 12+, 0.1mol/L SO3 2-, 0.5mol/L SO4 2-Certain Industry Waste
Water, positive permeability apparatus 3 is delivered to through pump, with the tributyl phosphorus trifluoroacetate of octyl group containing 30wt% and 7wt% octyl group tributyl phosphorus
Raw water is concentrated into 1.2mol/L Mg by the aqueous solution of metilsulfate to draw liquid2+, 0.2mol/L SO3 2-, 1.0mol/L
SO4 2-, water flux is 15L/m2H, the liquid that draws after drawing draws liquid case 5 into dilution, is then warming up to 40 by heat exchanger 6
DEG C, subsequently into being separated in phase separator 7, aqueous phase enters fresh-water tank 8, and the entrance of ionic liquid body phase is drawn liquid case 2 and is recycled back to
With.
It is described above to be only the preferred embodiments of the present invention, any formal limitation not is made to the present invention,
Every technical spirit according to the present invention is belonged to any simple modification made for any of the above embodiments, equivalent variations and modification
In the range of technical solution of the present invention.
Claims (6)
1. a kind of ionic liquid for positive process of osmosis draws liquid, it is characterised in that it is with low critical molten altogether that this, which draws liquid,
The ionic liquid aqueous solution of temperature, wherein, the mass fraction of ionic liquid aqueous solution intermediate ion liquid is 10%~80%.
2. the ionic liquid according to claim 1 for positive process of osmosis draws liquid, it is characterised in that the ionic liquid
Body is the mixture of a kind of ionic liquid or different kinds of ions liquid.
3. a kind of ionic liquid for positive process of osmosis draws liquid circulation regeneration method, it is characterised in that：By just penetrating
After journey is concentrated to material liquid, the ionic liquid after dilution is drawn into liquid and heated up, ionic liquid can produce layering with water
Phenomenon, ionic liquid body phase after phase separation draws liquid circulating and recovering as new ionic liquid.
4. a kind of ionic liquid for positive process of osmosis according to claim 3 draws liquid circulation regeneration method, it is special
Levy and be：Ionic liquid after dilution draws temperature control that liquid heated up at 40 DEG C~70 DEG C.
5. a kind of ionic liquid for positive process of osmosis draws liquid indirect regeneration, it is characterised in that：Including raw water box
(1), draw liquid case (2), positive permeability apparatus (3), concentrated water case (4), dilution draw liquid case (5), heat exchanger (6), phase separator (7)
With fresh-water tank (8)；The raw water box (1), positive permeability apparatus (3) and concentrated water case (4) are sequentially communicated one material liquid concentration of composition
Unit, the raw water box (1) is connected with the material liquid entrance of positive permeability apparatus (3), the concentrated water case (4) and positive permeability apparatus
(3) material liquid outlet is connected；It is described draw liquid case (2), positive permeability apparatus (3), dilution draw liquid case (5), heat exchanger (6) and
Phase separator (7) is sequentially communicated composition one and draws liquid cycling element, the delivery port for drawing liquid case (2) and positive permeability apparatus
(3) the liquid entrance that draws is connected, and the liquid that draws for diluting the water inlet and positive permeability apparatus (3) that draw liquid case (5) exports phase
Even, described dilute is drawn the delivery port of liquid case (5) and is connected with the water inlet of heat exchanger (6), the delivery port of the heat exchanger (6) and
Phase separator (7) is connected；The outlet of the phase separator (7) is divided into two-way, and branch pipe is connected with fresh-water tank (8) all the way, Ling Yilu
Branch pipe is connected with drawing the water inlet of liquid case (2).
6. a kind of ionic liquid for positive process of osmosis according to claim 5 draws liquid indirect regeneration, it is special
Levy and be：The thermal source of the heat exchanger (6) can be low-grade heat source and/or used heat.
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| CN201710384957.4A CN107162108A (en) | 2017-05-26 | 2017-05-26 | A kind of ionic liquid for positive process of osmosis draws liquid and its circulation regeneration method and system |
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| CN201710384957.4A CN107162108A (en) | 2017-05-26 | 2017-05-26 | A kind of ionic liquid for positive process of osmosis draws liquid and its circulation regeneration method and system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109796098A (en) * | 2017-11-17 | 2019-05-24 | 华东理工大学 | A kind of just permeate is used as pretreated thermal method seawater desalination system and method |
| CN110330165A (en) * | 2019-06-05 | 2019-10-15 | 中国石油天然气集团有限公司 | Strong brine zero-emission and sub-prime crystallizing treatment process and processing system |
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| CN103204788A (en) * | 2012-01-17 | 2013-07-17 | 三星电子株式会社 | Draw Solute For Forward Osmosis, Forward Osmosis Water Treatment Device, And Forward Osmosis Method For Water Treatment |
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| CN105800851A (en) * | 2016-05-23 | 2016-07-27 | 海博伦（苏州）环境科技股份有限公司 | Forward osmosis drawing solution and cyclic regeneration method and application thereof |
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