CN208087280U - The device of electrodialysis recycling brackish water is coupled based on corona discharge - Google Patents
The device of electrodialysis recycling brackish water is coupled based on corona discharge Download PDFInfo
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- CN208087280U CN208087280U CN201820080518.4U CN201820080518U CN208087280U CN 208087280 U CN208087280 U CN 208087280U CN 201820080518 U CN201820080518 U CN 201820080518U CN 208087280 U CN208087280 U CN 208087280U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 116
- 238000000909 electrodialysis Methods 0.000 title claims abstract description 75
- 238000004064 recycling Methods 0.000 title claims abstract description 29
- 239000003990 capacitor Substances 0.000 claims abstract description 64
- 239000001257 hydrogen Substances 0.000 claims abstract description 17
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 17
- 230000008878 coupling Effects 0.000 claims abstract description 10
- 238000010168 coupling process Methods 0.000 claims abstract description 10
- 238000005859 coupling reaction Methods 0.000 claims abstract description 10
- 239000012528 membrane Substances 0.000 claims description 60
- 239000002253 acid Substances 0.000 claims description 28
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 22
- 230000005611 electricity Effects 0.000 claims description 18
- 239000003011 anion exchange membrane Substances 0.000 claims description 16
- 238000005341 cation exchange Methods 0.000 claims description 16
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 12
- 229910052697 platinum Inorganic materials 0.000 claims description 11
- 229910003460 diamond Inorganic materials 0.000 claims description 9
- 239000010432 diamond Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 6
- 238000004458 analytical method Methods 0.000 claims description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- 239000010936 titanium Substances 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 238000000889 atomisation Methods 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 229910052741 iridium Inorganic materials 0.000 claims description 3
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 239000011435 rock Substances 0.000 claims 1
- 229910021642 ultra pure water Inorganic materials 0.000 abstract description 10
- 239000012498 ultrapure water Substances 0.000 abstract description 10
- 150000007516 brønsted-lowry acids Chemical class 0.000 abstract description 5
- 150000007528 brønsted-lowry bases Chemical class 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 abstract 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 33
- 230000000694 effects Effects 0.000 description 23
- 238000000034 method Methods 0.000 description 18
- 229910052760 oxygen Inorganic materials 0.000 description 16
- 239000001301 oxygen Substances 0.000 description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 15
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 12
- 239000000084 colloidal system Substances 0.000 description 12
- 150000002500 ions Chemical class 0.000 description 12
- 238000000108 ultra-filtration Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 9
- 239000000126 substance Substances 0.000 description 9
- 150000001768 cations Chemical class 0.000 description 8
- 150000003839 salts Chemical class 0.000 description 8
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 8
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 7
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 6
- 239000003513 alkali Substances 0.000 description 6
- -1 hydroxyl radical free radical Chemical class 0.000 description 6
- 229910017604 nitric acid Inorganic materials 0.000 description 6
- 239000005416 organic matter Substances 0.000 description 6
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 5
- 150000001450 anions Chemical class 0.000 description 5
- 239000011734 sodium Substances 0.000 description 5
- 229910052708 sodium Inorganic materials 0.000 description 5
- 206010015866 Extravasation Diseases 0.000 description 4
- 239000002033 PVDF binder Substances 0.000 description 4
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 239000002585 base Substances 0.000 description 4
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 230000036251 extravasation Effects 0.000 description 4
- 238000005374 membrane filtration Methods 0.000 description 4
- 230000001590 oxidative effect Effects 0.000 description 4
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 4
- 235000010344 sodium nitrate Nutrition 0.000 description 4
- 239000004317 sodium nitrate Substances 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- 239000003403 water pollutant Substances 0.000 description 4
- 206010039509 Scab Diseases 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 238000005273 aeration Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 3
- 238000001471 micro-filtration Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 125000004430 oxygen atom Chemical group O* 0.000 description 3
- 241000894007 species Species 0.000 description 3
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 2
- 230000004520 agglutination Effects 0.000 description 2
- 239000012267 brine Substances 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 238000000502 dialysis Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000001223 reverse osmosis Methods 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 229910001415 sodium ion Inorganic materials 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000005349 anion exchange Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000001728 nano-filtration Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Water Treatment By Electricity Or Magnetism (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a kind of devices coupling electrodialysis recycling brackish water based on corona discharge comprising DC high-voltage power supply, discharge electrode, venturi atomizer electrode, capacitor system, electrodialysis system, capacitor power, electrodialysis power supply；Utility model device is by saliferous recycling of water resource, and production obtains ultra-pure water, corresponding bronsted lowry acids and bases bronsted lowry, while recycling hydrogen, turns waste into wealth, and device is simple and effective, is suitable for industrial applications and popularization.
Description
Technical field
The utility model belongs to brackish water process resource field, and in particular to arrives through corona discharge, capacitance, membrane filtration
And electrodialytic technique produces ultra-pure water and soda acid using brackish water, while recycling the device of hydrogen.
Background technology
With flourishing for China's industry, a large amount of brackish waters are generated every year, especially in coal chemical industry, petrochemical industry, electricity
In the industries such as power and metallurgy, brackish water is often referred to total dissolved solidss object（TDS）Mass fraction is at least 3.5% brackish water,
This kind of brackish water contains a large amount of SO4 2-、NO3 -、Cl-、Mg2+、Ca2+、Na+Plasma, and contain organic pollution.Currently, these
The brackish water overwhelming majority is handled by diluting outer row, although enterprise's qualified discharge, the total amount of pollutant are not reduced, and wave
Take more freshwater resources and salts resources, under the rare overall situation of water resource, being effectively treated for brackish water is controlled as environment
Very important problem in reason, seawater also belong to this kind of brackish water.
More or less contain organic matter in this kind of water, brackish water cannot simply carry out biochemical treatment, and later stage materialization
Journey is more complex, and processing cost is higher, although the harm of such water is larger, a large amount of salts resources, brackish water are contained in the water
Recycling becomes the trend of saliferous water process, such as produces water reuse, and salt crystallizes and prepare soda acid.
Chinese patent CN103910457A is softened by medicament, multi-medium filtering, and ultrafiltration is reverse osmosis, ion exchange, nanofiltration
High pressure is reverse osmosis, evaporation, and the techniques such as refined finally obtain salt, although the technique can obtain refined salt from brackish water
Class, but complex process, in order to obtain high cycles of concentration so that operating cost increases, meanwhile, salt life cycle of the product
Long, cost is excessively high.The enterprise for generating brine waste generally requires to use bronsted lowry acids and bases bronsted lowry, Chinese patent in process of production
CN105271481A utilizes Bipolar membrane water splitting, handles brackish water in a cell, converting salt to corresponding soda acid is returned
It receives, but this method is larger to water quality dependence, if in brackish water, the organic matter containing colloidal solid and macromolecular, film holds
It is vulnerable to pollution, influences treatment effect.
Membrane technology is a kind of efficient isolation technics, can be enriched with concentration and realize recycling, with conventional water treatment skill
Art is compared, and secondary pollution can be reduced, and is a kind of environmentally protective new technique.The membrane technologies such as membrane filtration and electrodialysis are used for
Saliferous water process, colloid and organic matter in brackish water can pollute film, reduce the filtration flux of filter membrane, can also influence
The mass transport process of electrodialytic membranes, reduces treatment effect, general filtering technique cannot well by colloid and organic matter removal,
Its ion selectivity of the amberplex of electrodialysis is nor 100% simultaneously, it may occur that ion infiltration of the same name.
The discharge plasma generated during electrion contains the strong oxygen such as hydroxyl, oxygen atom, ozone of strong oxidizing property
Compound matter can be reacted with many kinds of substance, be widely used in saliferous water process, meanwhile, electrion process being capable of reinforcing tape
The colloidal solid of negative electricity is charged, increases its charge-mass ratio.But the Strong oxdiative substance short life in discharge plasma, it can only act on
Pollutant in saliferous water surface, accessing pending water cannot direct contact with, to reduce its processing capacity.
Invention content
In view of the above-mentioned problems, the utility model provides a kind of dress coupling electrodialysis recycling brackish water based on corona discharge
It sets, i.e., ultra-pure water and acid is produced using brackish water by high voltage direct current corona discharge, capacitance, membrane filtration and electrodialytic technique
Alkali, while recycling the device of hydrogen.
The device includes DC high-voltage power supply, discharge electrode, venturi atomizer electrode, capacitor system, electrodialysis system
System, capacitor power, electrodialysis power supply；Discharge electrode, venturi atomizer are provided at venturi atomizer electrode centers
Electrode, discharge electrode are connect with the anode of DC high-voltage power supply, cathode respectively, and DC high-voltage power supply is connected with ground wire, venturi
The water outlet of atomizer electrode is connected to capacitor system, and capacitor system is the chamber for being arranged in parallel with positive-negative electrode plate, setting
Chamber is divided into upper chamber and lower chambers by filter membrane in the chamber, and filter membrane is between capacitance cathode, capacitance cathode, upper chamber
Bottom end is provided with outlet, and capacitor power is connect with capacitance cathode, capacitance cathode, the open bottom and electrodialysis system of capacitor system
Entrance connection；Electrodialysis system is to intersect electrodialysis system, and anion-exchange membrane, cation-exchange membrane are arranged in a crossed manner in electric osmose
Be divided into 4 parts, i.e. cathode chamber, anode chamber, intake chamber, liquid outtake chamber in analysis chamber and by chamber, anion-exchange membrane, sun from
Proton exchange infall is provided with acid solution collection port by the bayonet connection that insulate, anode chamber bottom, and lye collection is provided on cathode chamber
Mouthful and Hydrogen collection mouth, electrodialysis anode, electrodialysis cathode in electrodialysis chamber connect respectively with electrodialysis power supply.
The venturi atomizer electrode is Venturi tube or by hollow circuit cylinder section, hollow cone converging portion, trunnion
It is sequentially connected composition, one end is water inlet, and the other end is water outlet；Discharge electrode is Filamentous, poroid or needle-shaped, high direct voltage
Supply voltage is -40KV ~ -1KV.
It is described to be provided with gas access perpendicular to the direction of flow in venturi atomizer electrode upper edge, pure oxygen or air with
The gas-liquid volume ratio of brackish water is 0.1-10.
The capacitor power is DC power supply or pulse dc power, and voltage is 0.5 ~ 60V, the positive electrode of capacitor system
For copper electrode, platinum electrode, diamond electrode or boron-doped diamond electrode, negative electricity extremely copper electrode, platinum electrode, diamond electrode or
Boron-doped diamond electrode.
The filter membrane is that stretched mechanical intensity is more than the filter membrane of 20MPa, aperture less than 0.1 μm.
The electrodialysis power supply is DC power supply, AC power or pulse current power supply, and voltage is 2V ~ 36V, and anion is handed over
Change that film, cation-exchange membrane are arranged in a crossed manner to be divided into 4 parts, including cathode chamber, anode in electrodialysis chamber and by chamber
Room, cathode is stainless steel electrode, copper electrode, platinum electrode or graphite electrode in electrodialysis system, and anode is that platinum electrode, titanium apply ruthenium electricity
Pole or titanium apply iridium electrode.
The venturi atomizer electrode exterior is provided with insulative pipe sleeve, is provided with outside capacitor system, electrodialysis system
Insulation crust.
The outlet, lye collection port, is provided with valve in acid solution collection port at gas access.
Brackish water is passed through in venturi atomizer electrode, discharge electrode is provided in venturi atomizer electrode,
Venturi atomizer electrode, discharge electrode are connect with the positive and negative anodes of DC high-voltage power supply respectively, and brackish water is atomized in venturi
Be atomized in injector electrode it is charged after be passed through capacitor system, the colloid of bear electricity is intercepted and is discharged by the filter membrane in capacitor system,
Through filter membrane brackish water under the cathode and anode effect of capacitor system, positive charged ion therein, negative charging ion difference
It is mobile to cathode and anode and migrate to being arranged in the electrodialysis system of capacitor system lower end, under voltage effect, anion
Enter anode chamber through the anion-exchange membrane of electrodialysis system, cation permeable cation-exchange membrane enters cathode chamber, in electricity
The cathode chamber of dialysis generates alkali and hydrogen, collects；Acid and oxygen are generated in electrodialytic anode chamber, acid is collected；Together
When obtain ultra-pure water, the final recycling for realizing brackish water.
The brackish water includes brine waste, salt-containing organic wastewater, saline sewage and seawater.
Specific mechanism is as follows：Brackish water is atomized by venturi atomizer electrode under the effect of negative high voltage DC power supply
Charged, the colloid in brackish water strengthens its carrying capacity, increases its lotus matter per se with negative electrical charge under the effect of negative high voltage direct current
Than, to agglomerate, brackish water by venturi atomizer electrode, generated under high voltage direct current effect hydroxyl radical free radical,
The Strong oxdiatives substance such as oxygen atom and ozone, accessing pending water pass through from the highest discharge electrode of Strong oxdiative material concentration, increase
The probability for having added Strong oxdiative substance to act on water pollutant enhances the effect that Strong oxdiative substance acts on water pollutant.
Brackish water after charged passes through from the capacitor system for being connected to DC power supply, positively charged in brackish water, negative under electrophoretic action
The particle of charge is gradually moved respectively to the cathode and anode of capacitor system, and zwitterion is able to separate enrichment, electricity in brackish water
Filter membrane in appearance system intercepts the bear electricity colloid of agglutination and excludes；Brackish water enters electrodialysis system, under voltage effect,
Anion and part water enter anode chamber through anion-exchange membrane, and corresponding acid and oxygen are generated in electrodialytic anode chamber
The cation-exchange membrane of gas, anode chamber lower end inhibits acid extravasation, and obtained acid is collected, and oxygen diffuses upward into entire dress
In setting, generate aeration effect, to ultrafiltration membrane backward erosion, reduce fouling membrane, meanwhile, corona discharge make oxygen become ozone and
The oxidizing species such as hydroxyl radical free radical improve the ability of device oxidation of organic compounds；Cation and part water are through cation
Exchange membrane enters cathode chamber, generates corresponding alkali and hydrogen in electrodialytic cathode chamber, and recycled, cathode chamber lower end
Anion-exchange membrane inhibits alkali extravasation, obtained ultra-pure water outflow.
Compared with prior art, the beneficial effects of the utility model are：
1, the utility model sieves zwitterion by high-voltage corona discharge, membrane filtration, capacitance and intersects electrodialysis skill
Art couples, and finally by brackish water recycling, produces ultra-pure water, corresponding bronsted lowry acids and bases bronsted lowry, while recycling hydrogen, turns waste into wealth；
2, venturi atomizer negative high voltage corona discharge can be effectively increased the charge-mass ratio of colloid, under capacitance effect more
It is easy screening, while generating the strong oxidizers such as ozone, hydroxyl radical free radical in discharge process, is conducive to further decrease in brackish water
The content of organic matter reduces the processing load of ultrafiltration membrane and electrodialytic membranes, fouling membrane is reduced, to improve the processing of whole device
Ability；
3, capacitor system is in advance opened the zwitterion screening in brackish water by electrophoretic action, waits for that brackish water enters intersection
When electrodialysis system, the selectivity of anion and cation exchange membrane is improved, prevents counter ion from penetrating exchange membrane；
4, during intersecting electrodialysis brackish water, hydrogen is generated in cathode chamber, is collected, recycling is realized, in anode
The oxygen that room generates plays the role of aeration through anion-exchange membrane in whole device, can wash away filter membrane, and it is dirty to reduce film
Dye, while oxygen rises at the top of device, corona discharge makes oxygen become the oxidizing species such as ozone and hydroxyl radical free radical,
The oxidisability of whole device is improved, pollution of the organic matter to film is reduced.
Description of the drawings
Fig. 1 is utility model device structural schematic diagram；
Fig. 2 is discharge electrode structure schematic diagram；
Fig. 3 is venturi atomizer electrode structure schematic diagram；
1- DC high-voltage power supplies in figure；2- is grounded；3- discharge electrodes；4- venturi atomizer electrodes；5- insulation tubes
Set；6- insulation crusts；7- filter membranes；8- filter holders；9- outlets；The gas accesses 10-；11- capacitance cathodes；12- capacitance cathode；
13- capacitor powers；14- insulation bayonets；15- Hydrogen collection mouths；16- electrodialysis anodes；17- electrodialysis cathodes；18- electrodialysis electricity
Source；19- cation-exchange membranes；20- anion-exchange membranes；21- lye collection ports；22- acid solution collection ports；23- cathode chambers；24-
Anode chamber；25- intake chamber；26- liquid outtake chamber；27- hollow circuit cylinder sections；28- hollow cone converging portions；29- trunnions；
A is filament-like discharges electrode in Fig. 2, and b is poroid discharge electrode, and c is pin shaped electric discharging electrodes.
Specific implementation mode
The technical solution of the utility model is further illustrated with reference to specific embodiment, but the utility model is protected
Range is not limited to and the content.
Embodiment 1：By brackish water（Sulfur acid sodium：200g/L, COD：180mg/L）Recycling treatment, design parameter is as follows,
Corona voltage is -25KV, and discharge electrode uses needle electrode, and the DC voltage for connecting capacitor system is 40V, and the electrode of capacitance selects
With copper electrode, it is 30MPa, the PE ultrafiltration membranes that aperture is 0.01 μm, the electrodialytic direct current of connection intersection that filter membrane, which selects tensile strength,
Supply voltage is 24V, intersects electrodialytic cathode and stainless steel electrode, anode is selected to select Ti-Ru electrode.
Venturi atomizer electrode is connect with the anode of DC high-voltage power supply, cathode respectively with discharge electrode, literary mound
In be provided with discharge electrode in atomizer electrode, and open DC high-voltage power supply, voltage is set as -25KV, at the same time, beats
It opens capacitor power and electrodialysis power supply is respectively adjusted to 40V and 24V, brackish water is passed through in venturi atomizer electrode, saliferous
Water be atomized in venturi atomizer electrode it is charged after be passed through capacitor system, the colloid of bear electricity is by the PE in capacitor system
Ultrafiltration membrane is intercepted and is discharged, through PE ultrafiltration membranes brackish water capacitor system cathode and anode effect under, wherein positively charged
Ion, electronegative ion is mobile to cathode and anode respectively and is discharged into the electrodialysis system being arranged in capacitor system lower end
In, under the effect of electrodialysis DC power supply, anion-permeable anion-exchange membrane enters anode chamber, and cation permeable cation is handed over
It changes film and enters anode chamber, generate sodium hydroxide and hydrogen in electrodialytic cathode chamber, collected, in electrodialytic anode chamber
Sulfuric acid and oxygen are generated, the ultra-pure water that acid is collected while being obtained flows out, the final recycling for realizing brackish water.
As shown in Figs. 1-3, the device for completing the above method includes DC high-voltage power supply 1, discharge electrode 3, venturi atomization
Injector electrode 4, capacitor system, electrodialysis system, capacitor power 13, electrodialysis power supply 18；Venturi atomizer electrode be by
Hollow circuit cylinder section 27, hollow cone converging portion 28, trunnion 29 are sequentially connected composition, and one end is water inlet, and the other end is water outlet
Mouthful；Be provided with discharge electrode at venturi atomizer electrode centers, venturi atomizer electrode, discharge electrode respectively with directly
Anode, the cathode connection of high voltage power supply 1 are flowed, DC high-voltage power supply 1 is connected with ground wire 2, the water outlet of venturi atomizer electrode
Mouth is connected to capacitor system, and capacitor system is to be arranged in parallel with positive and negative electrode（Plate electrode）Chamber, set by filter holder 8
Set filter membrane 7 in the chamber and chamber be divided into upper chamber and lower chambers, filter membrane 7 be located at capacitance cathode 11, capacitance cathode 12 it
Between, upper chamber bottom end is provided with outlet 9, and anode, the cathode of capacitor power 13 connect with capacitance cathode 11, capacitance cathode 12 respectively
It connects, the open bottom of capacitor system is connected to the entrance of electrodialysis system, and anion-exchange membrane 20, cation-exchange membrane 19 intersect
It is arranged in electrodialysis chamber and chamber is divided into 4 parts, i.e. cathode chamber 23, anode chamber 24, intake chamber 25, liquid outtake chamber
26, anion-exchange membrane 20,19 infall of cation-exchange membrane are connected by the bayonet 14 that insulate, and anode chamber bottom is provided with acid solution receipts
Collect mouth 22, cathode chamber bottom is provided with lye collection port 21, and cathode chamber top is provided with Hydrogen collection mouth 15, the electricity in electrodialysis chamber
Dialysis anode 16, electrodialysis cathode 17 are connect with electrodialysis power supply 18 respectively, are provided with outside venturi atomizer electrode 4 absolutely
Edge pipe sleeve 5, capacitor system, electrodialysis system are provided with insulation crust 6, outlet 9, lye collection port 21, acid solution collection port outside
Valve is provided on 22.
Using above-mentioned apparatus to brackish water（Sulfur acid sodium：200g/L, COD：180mg/L）Processing, after 12h, water outlet
COD is reduced to 52 mg/L, sulfuric acid concentration 1.02mol/L, and naoh concentration is 1.9 mol/L.COD removal rates reach 72%,
The bronsted lowry acids and bases bronsted lowry being collected into, can also meet most industrial reuses, and treatment effect is preferable.
Embodiment 2：By brackish water（Containing sodium nitrate：120g/L, calcium nitrate 18 g/L, COD：150mg/L）Recycling treatment,
Design parameter is as follows, and corona voltage is -40KV, and discharge electrode uses wire electrode, connects the pulsed dc voltage of capacitor system
For 31V, capacitor system electrode selects boron-doped diamond electrode, and it is 35MPa that filter membrane, which selects tensile strength, and aperture is 0.5nm's
PVDF NF membranes, it is 12V that connection, which intersects electrodialytic AC supply voltage, intersects electrodialytic cathode and selects copper electrode, anode
Select platinum electrode.
Venturi atomizer electrode is connect with the anode of DC high-voltage power supply, cathode respectively with discharge electrode, literary mound
In be provided with discharge electrode in atomizer electrode, and open DC high-voltage power supply, voltage is set as -40KV, at the same time, beats
It opens capacitor power and electrodialysis power supply is respectively adjusted to 31V and 12V, brackish water is passed through in venturi atomizer electrode, simultaneously
It is passed through pure oxygen along the direction of vertical flow, the gas-liquid volume ratio for being passed through pure oxygen and brackish water is 0.5, and brackish water is atomized in venturi
Be atomized in injector electrode it is charged after be passed through capacitor system, the colloid of bear electricity is intercepted simultaneously by the PVDF NF membranes in capacitor system
Discharge, through NF membrane brackish water under the cathode and anode effect of capacitor system, wherein positively charged ion, electronegative
Ion is mobile to cathode and anode respectively and is discharged into and is arranged in the electrodialysis system of capacitor system lower end, in brackish water negative and positive from
Son is separated, and under the effect of electrodialysis DC power supply, anion-permeable anion-exchange membrane enters anode chamber, cation permeable
Cation-exchange membrane enters anode chamber, generates sodium hydroxide and hydrogen in electrodialytic cathode chamber, is collected, in electrodialysis
Anode chamber generate nitric acid and oxygen, the ultra-pure water that acid is collected while being obtained flows out, the resource of final realization brackish water
Change.
The present embodiment apparatus structure is with embodiment 1, and difference is that venturi atomizer electrode is Venturi tube, in Wen Qiu
In 4 upper edge of atomizer electrode be provided with gas access 10 perpendicular to the direction of flow；It is provided with valve on gas access 10；
Using above-mentioned apparatus to the organic brackish water of saliferous（Containing sodium nitrate：120g/L, calcium nitrate 18 g/L, COD：150mg/
L）Processing, after 18h, it is 1.1mol/L that water outlet COD, which is reduced to 38 mg/L concentration of nitric acid, and naoh concentration is 2.1 mol/
L contains a small amount of white precipitate in sodium hydroxide, is detected as calcium hydroxide.
Under the same conditions, discharge electrode is changed to poroid electrode, after 18h, water outlet COD is reduced to 24 mg/L, nitric acid
A concentration of 1.3mol/L, naoh concentration are 2.4 mol/L, contain a small amount of white precipitate in same sodium hydroxide, through inspection
It is calcium hydroxide to survey, it can be seen that poroid electrode is more advantageous to the efficiency for improving the method recycling.
Embodiment 3：By the organic brackish water of saliferous（Containing sodium nitrate：150g/L, sodium sulphate 32g/L, COD：120mg/L）Resource
Change is handled, and design parameter is as follows, and corona voltage is -3KV, and the pulsed dc voltage for connecting capacitor system is 55V, the electrode of capacitance
Diamond electrode is selected, it is 30MPa that filter membrane, which selects tensile strength, and the PES microfiltration membranes that aperture is 0.08 μm connect and intersect electrodialysis
Direct current power source voltage be 35V, intersect electrodialytic cathode and select platinum electrode, anode that titanium is selected to apply iridium electrode.
Venturi atomizer electrode is connect with the anode of DC high-voltage power supply, cathode respectively with discharge electrode, and is beaten
DC high-voltage power supply is opened, voltage is set as -3KV, at the same time, opens capacitor board power supply and electrodialysis power supply is respectively adjusted to
55V and 35V, brackish water are passed through in venturi atomizer electrode, while being passed through pure oxygen along the direction of vertical flow, are passed through pure oxygen
Be 1 with the gas-liquid volume ratio of brackish water, brackish water be atomized in venturi atomizer electrode it is charged after be passed through capacitor system,
The colloid of bear electricity is intercepted and is discharged by the PES microfiltration membranes in capacitor system, through microfiltration membranes brackish water in capacitor system
Under cathode and anode effect, wherein positively charged ion, electronegative ion are mobile to cathode and anode respectively and are discharged into setting
In the electrodialysis system of capacitor system lower end, zwitterion is able to separate enrichment in brackish water, makees in electrodialysis DC power supply
Under, anion-permeable anion-exchange membrane enters anode chamber, and cation permeable cation-exchange membrane enters anode chamber, in electric osmose
The cathode chamber of analysis generates sodium hydroxide and hydrogen, is collected, and nitric acid and oxygen are generated in electrodialytic anode chamber, by acid into
The ultra-pure water outflow that row is collected while being obtained, the final recycling for realizing brackish water.
The present embodiment apparatus structure with embodiment 2, difference be venturi atomizer electrode be by hollow circuit cylinder section 27,
Hollow cone converging portion 28, trunnion 29 are sequentially connected composition, and discharge electrode is arranged at the trunnion of venturi atomizer electrode；
Using above-mentioned apparatus to the organic brackish water of saliferous（Containing sodium nitrate：150g/L, sodium sulphate 32g/L, COD：120mg/L）
Processing, after for 24 hours, water outlet COD is reduced to 52 mg/L, concentration of nitric acid 1.4mol/L, and naoh concentration is 3.2 mol/L,
Sulfate ion containing 0.2 mol/L in nitric acid.
Embodiment 4：By brackish water（Sulfur acid sodium：200g/L, COD：150mg/L）Recycling treatment, design parameter is as follows,
Corona voltage is -30KV, and discharge electrode is using needle-shaped, and the DC voltage for connecting capacitor system is 1V, and the electrode of capacitance selects platinum
Electrode, it is 30MPa, the PVDF ultrafiltration membrane that aperture is 0.004 μm, the electrodialytic direct current of connection intersection that ultrafiltration membrane, which selects tensile strength,
Supply voltage is 5V, intersects electrodialytic cathode and graphite electrode, anode is selected to select Ti-Ru electrode.
Venturi atomizer electrode is connect with the anode of DC high-voltage power supply, cathode respectively with discharge electrode, and is beaten
DC high-voltage power supply is opened, voltage is set as -30KV, at the same time, opens capacitor board power supply and electrodialysis power supply is respectively adjusted to
1V and 5V, brackish water are passed through in venturi atomizer electrode, while being passed through pure oxygen along the direction of vertical flow, be passed through pure oxygen with
The gas-liquid volume ratio of brackish water is 2.The colloid of bear electricity is intercepted and is discharged by the PVDF ultrafiltration membrane in capacitor system, through ultrafiltration
Under the cathode and anode effect of capacitor system, positive and negative charged ion therein is moved to cathode and anode the brackish water of film respectively
And be discharged into and be arranged in the electrodialysis system of capacitor system lower end, electrodialysis DC power supply effect under, anion-permeable the moon from
Proton exchange enters anode chamber, and cation permeable cation-exchange membrane enters anode chamber, and hydrogen-oxygen is generated in electrodialytic cathode chamber
Change sodium and hydrogen, collected, generates sulfuric acid and oxygen in electrodialytic anode chamber, what acid was collected while being obtained is super
Pure water flows out, the final recycling for realizing brackish water.
The present embodiment device is the same as embodiment 1；Brackish water is made by venturi atomizer electrode 4 in DC high-voltage power supply 1
Charged with lower atomization, the colloid in brackish water strengthens its carrying capacity per se with negative electrical charge under the effect of negative high voltage direct current, increases
Add its charge-mass ratio, to agglomerate, brackish water generates hydroxyl by venturi atomizer electrode under high voltage direct current effect
The Strong oxdiatives substance such as free radical, oxygen atom and ozone, accessing pending water are passed through from the highest discharge electrode 3 of Strong oxdiative material concentration
It crosses, considerably increases the probability that Strong oxdiative substance acts on water pollutant, enhance Strong oxdiative substance and water pollutant is made
Effect.Brackish water after charged passes through from the capacitor system for being connected with capacitor power 13, under electrophoretic action, brackish water
The middle particle with positive and negative charge is gradually moved into the cathode and anode of capacitor system, and zwitterion is able to separate richness in brackish water
Collect, the ultrafiltration membrane in capacitor system intercepts the bear electricity colloid of agglutination and excludes；Brackish water enters the feed liquor of electrodialysis system
Room 25, under electrodialysis power supply 18 acts on, anion and part water enter anode chamber 24 through anion-exchange membrane 20, in electric osmose
The anode chamber of analysis generates corresponding acid and oxygen, and the cation-exchange membrane of anode chamber lower end inhibits acid extravasation, and obtained acid carries out
It collects（It is discharged by acid solution collection port 22）, and oxygen diffuses upward into whole device, generates aeration effect, it is reversed to ultrafiltration membrane
It washes away, reduces fouling membrane, meanwhile, corona discharge makes oxygen become the oxidizing species such as ozone and hydroxyl radical free radical, improves
The ability of device oxidation of organic compounds；Cation and part water enter cathode chamber 23 through cation-exchange membrane 19, in electrodialysis
Cathode chamber generate corresponding alkali（It is discharged by lye collection port 21）And hydrogen（It is discharged by Hydrogen collection mouth 15）, and returned
It receives, the anion-exchange membrane of cathode chamber lower end inhibits alkali extravasation, obtained ultra-pure water to be flowed out by liquid outtake chamber 26.
Using above-mentioned apparatus to brackish water（Sulfur acid sodium：200g/L, COD：150mg/L）Processing, after for 24 hours, water outlet
COD is reduced to 18 mg/L, sulfuric acid concentration 1.2mol/L, naoh concentration 2.3mol/L.
Control group is set, under other conditions same case, the power supply of capacitor board is closed, after for 24 hours, COD is reduced to
21mg/L, sulfuric acid concentration 0.6mol/L, naoh concentration 1.1mol/L also contain by detection in obtained sulfuric acid
A certain amount of sodium ion.As can be seen that sieving actoion of the brackish water without capacitor board, zwitterion cannot orderly enter electric osmose
Analysis system reduces so as to cause obtained bronsted lowry acids and bases bronsted lowry concentration.
Claims (8)
1. a kind of device coupling electrodialysis recycling brackish water based on corona discharge, it is characterised in that：Including DC high-voltage
Source（1）, discharge electrode（3）, venturi atomizer electrode（4）, capacitor system, electrodialysis system, capacitor power（13）, electric osmose
Analyse power supply（18）；Discharge electrode, venturi atomizer electrode, discharge electrode are provided at venturi atomizer electrode centers
Respectively with DC high-voltage power supply（1）Anode, cathode connection, DC high-voltage power supply（1）It is connected with ground wire（2）, venturi atomization
The water outlet of injector electrode is connected to capacitor system, and capacitor system is the chamber for being arranged in parallel with positive and negative electrode, is arranged in chamber
In filter membrane（7）Chamber is divided into upper chamber and lower chambers, filter membrane（7）Positioned at capacitance cathode（11）, capacitance cathode（12）It
Between, upper chamber bottom end is provided with outlet（9）, capacitor power（13）With capacitance cathode（11）, capacitance cathode（12）Connection, capacitance system
The open bottom of system is connected to the entrance of electrodialysis system；Electrodialysis system is to intersect electrodialysis system, anion-exchange membrane
（20）, cation-exchange membrane（19）It is arranged in a crossed manner to be divided into 4 parts, i.e. cathode chamber in electrodialysis chamber and by chamber
（23）, anode chamber（24）, intake chamber（25）, liquid outtake chamber（26）, anion-exchange membrane（20）, cation-exchange membrane（19）Infall
Pass through the bayonet that insulate（14）Connection, anode chamber（24）Bottom is provided with acid solution collection port（22）, lye collection port is provided on cathode chamber
（21）With Hydrogen collection mouth（15）, the electrodialysis anode in electrodialysis chamber（16）, electrodialysis cathode（17）Respectively with electrodialysis
Power supply（18）Connection.
2. the device according to claim 1 for coupling electrodialysis recycling brackish water based on corona discharge, it is characterised in that：
Venturi atomizer electrode is Venturi tube or is sequentially connected and formed by hollow circuit cylinder section, hollow cone converging portion, trunnion,
One end is water inlet, and the other end is water outlet；Discharge electrode be it is Filamentous, poroid or needle-shaped, DC high-voltage power supply voltage be-
40KV~-1KV。
3. the device according to claim 1 for coupling electrodialysis recycling brackish water based on corona discharge, it is characterised in that：
In venturi atomizer electrode（4）Upper edge is provided with gas access perpendicular to the direction of flow（10）.
4. the device according to claim 1 for coupling electrodialysis recycling brackish water based on corona discharge, it is characterised in that：
Capacitor power（13）For DC power supply or pulse dc power, voltage is 0.5 ~ 60V, the positive electricity extremely copper electricity of capacitor system
Pole, platinum electrode, diamond electrode or boron-doped diamond electrode, negative electricity extremely copper electrode, platinum electrode, diamond electrode or boron-doping gold
Hard rock electrode.
5. the device according to claim 1 for coupling electrodialysis recycling brackish water based on corona discharge, it is characterised in that：
Filter membrane is that stretched mechanical intensity is more than the filter membrane of 20MPa, aperture less than 0.1 μm.
6. the device according to claim 1 for coupling electrodialysis recycling brackish water based on corona discharge, it is characterised in that：
Electrodialysis power supply（18）For DC power supply, AC power or pulse current power supply, voltage is 2V ~ 36V, cathode in electrodialysis system
For stainless steel electrode, copper electrode, platinum electrode or graphite electrode, anode is that platinum electrode, Ti-Ru electrode or titanium apply iridium electrode.
7. the device according to claim 1 for coupling electrodialysis recycling brackish water based on corona discharge, it is characterised in that：
Venturi atomizer electrode（4）Outside is provided with insulative pipe sleeve（5）, it is outer that capacitor system, electrodialysis system are provided with insulation outside
Shell（6）.
8. the device according to claim 3 for coupling electrodialysis recycling brackish water based on corona discharge, it is characterised in that：
Outlet（9）, gas access（10）, lye collection port（21）, acid solution collection port（22）On be provided with valve.
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