CN106006860A - High-salinity organic wastewater treatment device powered by solar energy - Google Patents

High-salinity organic wastewater treatment device powered by solar energy Download PDF

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Publication number
CN106006860A
CN106006860A CN201610587607.3A CN201610587607A CN106006860A CN 106006860 A CN106006860 A CN 106006860A CN 201610587607 A CN201610587607 A CN 201610587607A CN 106006860 A CN106006860 A CN 106006860A
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China
Prior art keywords
carbon
electric capacity
electrode
water
capacitive deionization
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CN201610587607.3A
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Chinese (zh)
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相艳
梁大为
卢善富
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Beihang University
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Beihang University
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Priority to CN201610587607.3A priority Critical patent/CN106006860A/en
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/46Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/467Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
    • C02F1/4672Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/46Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/469Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
    • C02F1/4691Capacitive deionisation
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRA-RED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S10/00PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124Water desalination
    • Y02A20/138Water desalination using renewable energy
    • Y02A20/142Solar thermal; Photovoltaics
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20Controlling water pollution; Waste water treatment
    • Y02A20/208Off-grid powered water treatment
    • Y02A20/212Solar-powered wastewater sewage treatment, e.g. spray evaporation
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/30Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37Wastewater or sewage treatment systems using renewable energies using solar energy

Abstract

The invention provides a high-salinity organic wastewater treatment device powered by solar energy. The device is characterized by comprising at least one electrochemical oxidation electrolysis tank 105, a capacitor deionizing desalting device 110 and a solar power supply device 103, wherein each electrolysis tank 105 comprises an electrochemical anode 202, an electrochemical cathode 206 and a tank body, the capacitor deionizing desalting device 110 comprises at least a group of capacitor deionizing units 301, and the solar power supply device 103 is used for powering the electrolysis tanks 105 and the capacitor deionizing desalting device 110 and serves as a direct-current power source of the electrolysis tanks and the capacitor deionizing desalting device. The invention further provides a high-salinity organic wastewater treatment method based on the high-salinity organic wastewater treatment device.

Description

A kind of solar powered high salt organic waste-water treating apparatus
Technical field
The present invention relates to a kind of solar powered high salt organic waste-water treating apparatus, belong to environment and protect The water technology in protector for collar territory.
Background technology
High saliferous organic wastewater with difficult degradation thereby, such as coking, process hides, papermaking, chemical industry, food and chlor-alkali The waste water of industry and percolate, containing a large amount of toxic persistent organic pollutants and inorganic salt, Such as Cl-,SO4 2-,Na+,Ca2+Plasma, if unprocessed or only organics removal, high salt Organic substance gives up The flow of water must produce strong influence to aqueous bio, industrial and agricultural production water water quality.In water resource Growing tension, brine waste discharge capacity are increasing, seek high salt organic waste water economic, efficient Treatment technology is particularly important.
Traditional biochemical processing is utilized to be difficult to high saliferous organic wastewater with difficult degradation thereby obtain satisfaction Treatment effect.Organic high-salinity wastewater has good electrical conductivity, thus uses at electrochemical method Reason is a suitable selection.Utilize free radical produced by electrochemical oxidation process (such as hydroxyl free Base) or the oxidant (such as hypochlorous acid) of generation, can the efficient oxidation degraded organic pollutants.Additionally, Waste water desalination is the essential link of high-salt wastewater reuse, and salinity is that industrial effluent reusing is main Limit one of index, only organics removal and can not meet reuse and the discharge mark of highly salt containing organic waste water Accurate.The high energy consumption of the desalting technology of multiple-effect evaporation and infiltration technology based on film limits it and extensively applies. Capacitive deionization (capacitive deionization, the CDI) desalination of development in recent years is a kind of new Type water process desalting technology, have high desalination rate, low energy consumption, without chemical regeneration and antipollution energy The advantages such as power is strong.The operation principle of capacitive deionization technology is built upon on electric double layer capacitance theory, Under electric field action, the cation in solution is attracted to negative terminal surface, and anion is attracted to simultaneously Positive electrode surface, along with ion is constantly adsorbed, the ion concentration of solution is gradually lowered, thus realizes solution Desalination.
But the subject matter of electrochemical techniques is to need to expend a large amount of electric energy, this has become the relevant skill of restriction One key factor of art exploitation.Additionally, the process of high saliferous organic wastewater with difficult degradation thereby usually needs Carrying out in the wild, scene does not often have supply of electric power condition.Furthermore, the densification of device, Portability is also urgent actual requirement.
Summary of the invention
According to an aspect of the invention, it is provided at a kind of solar powered high salt organic waste water Reason device, it is characterised in that including:
At least one electrochemical oxidation electrolysis bath,
Capacitive deionization desalter,
Solar power supply apparatus,
Wherein,
Each described electrolysis bath includes Anodic, electrochemical cathode and cell body,
Described capacitive deionization desalter includes least one set capacitive deionization unit,
Described solar power supply apparatus is for providing direct current to electrolysis bath and capacitive deionization desalter Electric power, as electrolysis bath and the DC source of capacitive deionization desalter.
A further aspect according to the present invention, it is provided that a kind of high salt treatment of Organic Wastewater side Method, it is characterised in that including:
A) pending waste water is made to be continuously entered respectively by anode water inlet and negative electrode water inlet described The anode chamber of electrolysis bath and cathode chamber,
B) at the external unidirectional current (2-4V) applied by anode collector and cathode current collector Under effect, with constant current charging mode, the described pending waste water in anode chamber and cathode chamber is carried out Electrolysis,
C) waste water in anode chamber and cathode chamber is made to flow out through anode outlet and negative electrode outlet respectively Electrolysis bath, enters capacitive deionization desalter,
D) water outlet from electrochemical oxidation electrolysis bath is made, by the water inlet on the 3rd pad of hollow Mouthful, enter the desalting chamber within the 3rd pad, and the water after process in desalting chamber from the 3rd Outlet on pad is drawn, and as the water outlet of capacitive deionization desalter,
E) 1.0-1.5V unidirectional current is applied to carbon back electric capacity the first electrode with carbon back electric capacity the second electrode Carry out capacitive adsorption deionizing, and the water outlet of capacitive deionization desalter exported as desalted water,
F) electrical conductivity of water is gone out constantly by low rising and connect when described capacitive deionization desalter When closely entering electrical conductivity of water, stop the power supply to capacitive deionization desalter, capacitive deionization Carbon back electric capacity first electrode of desalter and carbon back electric capacity the second electrode the two poles of the earth short circuit and/or reversely Direct current is connected, and discharges capacitive adsorption ion, and using the water outlet of capacitive deionization desalter as dense Saline exports,
G) constantly it is reduced to into water by height when the water outlet conductivity of described capacitive deionization desalter During electrical conductivity, it is again switched on 1.0-1.5V unidirectional current, carries out desalination,
H) repeat the above steps E) to G).
Accompanying drawing explanation
Fig. 1 is that solar powered electrochemical oxidation-electric capacity according to an embodiment of the invention goes Ion desalination coupling device figure.
Fig. 2 is the solid electrolyte electrolysis bath dress of " zero pole span " according to an embodiment of the invention Put schematic diagram.
Fig. 3 is capacitor deionizing instrument schematic diagram according to an embodiment of the invention.
Detailed description of the invention
For problem of the prior art, the present inventor is recognized by further investigation, utilizes solar energy Electric supply installation is that capacitive deionization (CDI) desalter provides electric power support, and Wastewater by Electric oxygen Change technology is combined with capacitive deionization desalting technology, and the most solar powered electrochemical oxidation-electric capacity goes Ion desalination coupling technique, can realize simultaneously the organic matter removal to high salt organic wastewater with difficult degradation thereby and Desalination.This technical scheme of the present invention can be greatly reduced being processed into of high salt organic wastewater with difficult degradation thereby Basis, shortening process the time and reduce secondary pollution, and it is particularly suited for lacking showing of supply of electric power Field environment, and in terms of the densification and portability of device, had the improvement of essence.
It is an object of the invention to design the high salt organic wastewater with difficult degradation thereby electricity of a kind of novel low energy consumption Chemical processing device, solves the synchronization process problem with desalination of effectively removing of hardly degraded organic substance.
To achieve these goals, the technical solution used in the present invention is as follows:
As it is shown in figure 1, solar powered high salt organic waste according to an embodiment of the invention Water treatment facilities include sewage pretreatment device, one or more electrochemical oxidation electrolysis bath 105, Capacitor deionizing instrument 110 and solar power supply apparatus 103.Solar power supply apparatus 103 conduct Electrochemical oxidation electrolysis bath and the DC source of capacitive deionization desalter, its power output end is even Receive electrochemical oxidation electrolysis bath 105 and capacitive deionization desalter 110, to provide electrochemistry Electric power needed for the operation of oxidization electrolysis groove 105 and capacitive deionization desalter 110.
In a specific embodiment, described sewage pretreatment device is a pretreatment tank 101, It is used for processing indissolubility suspended particulate substance in water, it is to avoid be stained aftertreatment device;Institute The water inlet 100 stating pretreatment unit is pending waste water, and the water outlet of described pretreatment unit is communicated to Electrochemical oxidation electrolysis bath 105.In a specific embodiment, water leg 101 and electrochemistry oxygen Change and be provided with the first water pump 102, as shown in Figure 1 between electrolysis bath 105.
The downstream of described sewage pretreatment device is provided with at least one electrochemical oxidation electrolysis bath 105; When being provided with two or more electrolysis baths 105, electrolysis bath 105 is connected in parallel to each other setting.
Electrolysis bath 105 can be open electrolytic cell or closed electrolytic tank.
According to one embodiment of present invention, each electrolysis bath 105 include Anodic 202, Electrochemical cathode 206 and cell body (not shown).
According to one embodiment of present invention, Anodic 202 is titanium, the corruption of molybdenio resistance to electrochemistry The dimensionally stable anode of erosion.
In one particular embodiment of the present invention, Anodic 202 includes: substrate, its with Porous (or atresia) plate and/or (drawing) silk screen of titanium or molybdenum base material are made;And, cover Suprabasil metal-oxide electro-catalytic coating.
In an embodiment according to the present invention, described metal-oxide electro-catalytic coating be from Ti/RuO2, Ti/SnO2-Sb2O3, Ti/Nb2O5-SnO2, Ti/PbO2, Ti/IrO2In select one Kind coating, and this coating uses and selects in the preparation method such as pyrolysis, electro-deposition, sol-gel A kind of method is prepared from.
In one particular embodiment of the present invention, electrochemical cathode 206 includes with nickel or rustless steel As the porous plate of base material, imperforate plate, wire netting, or it is carbon cloth, carbon paper, graphite fibre film Or the porous plate of carbon substrate material, imperforate plate, the net such as carbon film, and supporting Pt/C, CNT, Or the nano powder catalyst of Ni, Raney Ni, Ni-S, Ni-Mo or Ni-Mo-S.
According to one embodiment of present invention, in Anodic 202 and the electrification of electrolysis bath 105 Learn and be provided with ion exchange membrane, as shown in Figure 2 between negative electrode 206.
As in figure 2 it is shown, when electrolysis bath 105 is provided with ion exchange membrane 205, in the present invention An embodiment in, utilize the first and second electrolysis bath end plates 201,231 by Anodic 202, ion exchange membrane 205 and electrochemical cathode 206 compress, and form the solid state electrolysis of " zero pole span " Matter electrolysis bath.Wherein, it is formed between the first electrolysis bath end plate 201 and Anodic 202 Anode chamber 104, it has anode water inlet 211 and anode outlet 212.At the second electrolysis bath end Being formed with cathode chamber 207 between plate 231 and electrochemical cathode 206, it has negative electrode water inlet 213 With negative electrode outlet 214.
In an embodiment of the present invention, described ion exchange membrane 205 can be PEM (as Nafion membrane) or anion exchange membrane.
According to an embodiment of the invention, based on above-mentioned solar powered high salt organic waste In the wastewater treatment process of water treatment facilities, pretreated waste water is with 0.01-0.20ml/cm2·min Flow velocity, respectively enter described electrolysis continuously by anode water inlet 211 and negative electrode water inlet 213 The anode chamber 202 of groove 105 and cathode chamber 207, by anode collector 208 and cathode collector It is electrolysed with constant current charging mode under external unidirectional current (2-4V) effect that body 209 applies;Electricity Chemical anode 202 is at 5-50mA/cm2Electric current density under, the metal-oxide on anode 202 The surface of electro-catalysis coating produces the oxidant including hydroxyl radical free radical, chlorine and ozone, in waste water Dissolubility organic pollution and ammonia nitrogen aoxidize on described Anodic surface, make difficult degradation have Machine thing obtains mineralizing and degrading, and ammonia nitrogen obtains nitrification.
Waste water is after the electrochemicial oxidation of described electrolysis bath 105, respectively through anode outlet 212 Flow out electrolysis bath 105 with negative electrode outlet 214, enter capacitive deionization desalter 110.
Capacitive deionization desalter 110 according to an embodiment of the invention includes organizing electric capacity more Deionization unit 301, each capacitive deionization unit parallel running.
According to embodiments of the invention as shown in Figure 3, each capacitive deionization unit 301 includes First end plate the 302, first pad the 303, first collector 304 of setting gradually, carbon back electric capacity One electrode the 305, first barrier film 306, the 3rd pad the 307, second barrier film 316, carbon back electric capacity Two electrode the 315, second collector the 314, second pad the 313, second end plates 312.Wherein, Three pads 307 are hollow, and its inner space defines desalting chamber.
According to one embodiment of present invention, described first and second end plates 302 and 312 are led for non- Electric material, for Support Capacitor deionizer;Described first and second collectors 304 and 314 (comprising lug 321 and 322) is used for collecting electric current, makes for electrochemical corrosion resistant material, as Copper, aluminum, titanium foil or graphite flake;Described first collector 304 and carbon back electric capacity the first electrode 305 It is fully contacted;Described second collector 314 is fully contacted with carbon back electric capacity the second electrode 315.
According to one embodiment of present invention, described carbon back electric capacity the first electrode 305 and carbon back electric capacity Second electrode 315 is by high-ratio surface (100-1000m2/ g) activated carbon (or electric capacity charcoal), conduction charcoal After black and binding agent is mixed by certain proportioning (mass ratio 8:1:1), through high temperature (300 DEG C) After heating, it is hot pressed into 1mm thickness carbon film and forms;According to a specific embodiment, described binding agent For select from Kynoar, politef, polyvinyl alcohol and sodium carboxymethyl cellulose one Kind.
According to the alternate embodiment of the present invention, described carbon back electric capacity the first electrode 305 and carbon back electric capacity Second electrode 315 also can be by high-ratio surface (400-1100m2/ g), high conductivity (10-100S/cm) Carbon aerogels is constituted,
According to an alternative embodiment of the invention, for increasing described carbon back electric capacity the first electrode 305 and carbon The electric conductivity of base electric capacity the second electrode 315, can the conductive carbon material such as carbon nano-tube modified, Graphene.
According to one embodiment of present invention, described first barrier film 306 and the second barrier film 316 are parent Aqueous porous film material, such as non-woven fabrics, glass fibre etc..
According to one embodiment of present invention, described first pad the 303, second pad the 313, the 3rd Pad 307 is used for sealing carbon back electric capacity the first electrode 305 and carbon back electric capacity the second electrode 315, and The spacing of carbon back electric capacity the first electrode 305 with carbon back electric capacity the second electrode 315 is controlled at 1-3mm In the range of.
Capacitive deionization desalter 110 uses and flows the method for operation continuously, incessantly will be from electricity The water outlet of one or more electrochemical oxidation electrolysis baths 105 of chemical oxidation device, by hollow Water inlet 308 on 3rd pad 307, introduces the desalting chamber within the 3rd pad 307 of hollow, And the outlet 309 from the 3rd pad 307 of the water after process in desalting chamber is drawn, and Water outlet as capacitive deionization desalter 110;By to carbon back electric capacity the first electrode 305 with Carbon back electric capacity the second electrode 315 applies 1.0-1.5V unidirectional current and carries out capacitive adsorption deionizing, now The water outlet of capacitive deionization desalter 110 is exported as desalted water 111;When described electric capacity goes Ion desalter 110 go out electrical conductivity of water constantly by low rising and close to enter electrical conductivity of water Time, stop to the power supply of capacitive deionization desalter 110, short circuit or reversely connect unidirectional current in Capacitive deionization desalter carbon back electric capacity the first electrode 305 and 315 liang of carbon back electric capacity the second electrode Pole, discharges capacitive adsorption ion, now using the water outlet of capacitive deionization desalter 110 as dense Saline 112 exports;When the water outlet conductivity of described capacitive deionization desalter 110 is continuous by height When being reduced to into water electrical conductivity, it is again switched on 1.0-1.5V unidirectional current, proceeds by desalination;Described Capacitive deionization desalter 110 goes round and begins again, and back and forth runs.
In described capacitive deionization desalter 110, can be carbon back electric capacity the first electrode 305 He One group of cation 331 and anion exchange membrane 332 is increased between carbon back electric capacity the second electrode 315, Constitute membrane capacitance deionization (MCDI) desalter;Described MCDI cation and anion The filler such as electroconductive resin and activated carbon can be added, to increase desalination and current efficiency between exchange membrane.
Solar power supply apparatus 103 is for powering to electrolysis bath and capacitive deionization desalter;Profit With reproducible solar energy as electrolysis bath and the power supply of capacitive deionization desalter, can be without handing over The conversion of stream-direct current, improves utilization rate of electrical.
An alternative embodiment according to the present invention, in order to ensure electrolysis bath 105 and capacitive deionization The stable operation of desalter 110, is provided with accumulator 113, to store unnecessary electric energy, and The period lacking sunlight provides the electric power needed for plant running.Accumulator 113 is connected to solar energy and supplies Electric installation 103 is to receive and to store the unnecessary electric energy that solar power supply apparatus 103 produces, and connects To electrochemical oxidation electrolysis bath 105 and capacitive deionization desalter 110, lack sunlight time Needed for section provides the operation of electrochemical oxidation electrolysis bath 105 and capacitive deionization desalter 110 Electric power.

Claims (10)

1. a solar powered high salt organic waste-water treating apparatus, it is characterised in that including:
At least one electrochemical oxidation electrolysis bath (105),
Capacitive deionization desalter (110),
Solar power supply apparatus (103),
Wherein,
Each described electrolysis bath (105) includes Anodic (202), electrochemical cathode (206) And cell body,
Described capacitive deionization desalter (110) includes least one set capacitive deionization unit (301),
Described solar power supply apparatus (103) is for taking off to electrolysis bath (105) and capacitive deionization Salt device (110) provides electric power, as electrolysis bath and the DC source of capacitive deionization desalter.
Solar powered high salt organic waste-water treating apparatus the most according to claim 1, its It is characterised by:
Each described capacitive deionization unit (301) include setting gradually for passive First end plate (302), the first pad (303), for collect electric current the first collector (304), Carbon back electric capacity the first electrode (305), the first barrier film (306), silica gel sealing ring with desalting chamber (307), the second barrier film (316), carbon back electric capacity the second electrode (315), for collecting electric current Second collector (314), the second pad (313), passive second end plate (312),
Each described electrolysis bath (105) farther includes:
It is arranged between described Anodic (202) and described electrochemical cathode (206) Ion exchange membrane (205),
First electrolysis bath end plate (201) and the second electrolysis bath end plate (231), for by electrification Learn anode (202), the first silica gel sealing ring (203), ion exchange membrane (205), the second silica gel Sealing ring (204) and electrochemical cathode (206) compress, and form the solid electrolyte electricity of compact Solve groove,
It is formed at the anode between the first electrolysis bath end plate (201) and Anodic (202) Room (104), it has anode water inlet (211) and anode outlet (212),
It is formed at the moon between the second electrolysis bath end plate (231) and electrochemical cathode (206) Room, pole (106), it has negative electrode water inlet (213) and negative electrode outlet (214).
Solar powered high salt organic waste-water treating apparatus the most according to claim 2, its It is characterised by:
Anodic (202) including:
Substrate, it is made with a kind of material selected from titanium and molybdenum base material, and has A kind of form selected from porous plate, imperforate plate, silk screen;And
Cover at suprabasil metal-oxide electro-catalytic coating,
Wherein,
Described metal-oxide electro-catalytic coating is from Ti/RuO2, Ti/SnO2-Sb2O3, Ti/Nb2O5-SnO2, Ti/PbO2, Ti/IrO2In a kind of coating of selecting,
Described metal-oxide electro-catalytic coating uses the systems such as pyrolysis, electro-deposition, sol-gel A kind of method selected in Preparation Method is prepared from,
Electrochemical cathode (206) has an a kind of form selected from following form:
Using a kind of material of selecting from nickel and rustless steel as the porous plate of base material, imperforate plate, Wire netting, and
Using a kind of material of selecting from carbon cloth, carbon paper, graphite fibre film, carbon film as base The porous plate of bottom material, imperforate plate, net,
Wherein,
Described electrochemical cathode (206) load nano powder catalyst, described nano powder catalyst It is from Pt/C, CNT, the receiving of Ni, Raney Ni, Ni-S, Ni-Mo or Ni-Mo-S At least one selected in rice flour body catalyst.
Solar powered high salt organic waste-water treating apparatus the most according to claim 2, its It is characterised by:
Described first end plate (302) and the second end plate (312) are made with non-conducting material,
Described first collector (304) includes the first lug (321), the second collector (314) Including the second lug (322),
Described first collector (304) and the second collector (314) with from copper, aluminum, titanium foil, A kind of material selected in graphite flake is made,
Described first collector (304) is in close contact with carbon back electric capacity the first electrode (305),
Described second collector (314) is in close contact with carbon back electric capacity the second electrode (315).
5. according to the solar powered high salt treatment of Organic Wastewater dress one of claim 2-4 Suo Shu Put, it is characterised in that:
First barrier film (306) and the second barrier film (316) are to select with from non-woven fabrics and glass fibre The Hydrophilized porous membrane that a kind of material gone out is made,
First pad (303), the second pad (313), the 3rd pad (307) are to carbon back electric capacity One electrode (305) and carbon back electric capacity the second electrode (315) are formed and seal, and carbon back electric capacity the The spacing of one electrode (305) and carbon back electric capacity the second electrode (315) is limited in the scope of 1-3mm In.
6. according to the solar powered high salt treatment of Organic Wastewater dress one of claim 2-4 Suo Shu Put, it is characterised in that:
Described carbon back electric capacity the first electrode (305) and carbon back electric capacity the second electrode (315) by from A kind of material selected in lower material is made:
100-1000m2The one selected in the activated carbon of/g specific surface and electric capacity charcoal, the charcoal that conducts electricity After black and binding agent 8:1:1 in mass ratio proportioning mixes, after 300 DEG C of high-temperature heatings, hot pressing Become 1mm thickness carbon film, and
Specific surface 400-1100m2/ g, the carbon aerogels of electrical conductivity 10-100S/cm,
Described binding agent is from Kynoar, politef, polyvinyl alcohol and carboxymethyl cellulose The one selected in element sodium,
Described carbon back electric capacity the first electrode (305) and carbon back electric capacity the second electrode (315) load (please Being expressed in that verification " is modified ... .. material " is the most suitable) select from CNT and Graphene A kind of conductive carbon material gone out, to strengthen its electric conductivity,
Described ion exchange membrane (205) is selected from PEM and anion exchange membrane Kind,
Described solar powered high salt organic waste-water treating apparatus farther include to be connected to described in extremely The sewage pretreatment device of the upstream of a few electrochemical oxidation electrolysis bath (105), treats for removal Process the indissolubility suspended particulate substance in waste water.
7. according to the solar powered high salt treatment of Organic Wastewater dress one of claim 2-4 Suo Shu Put, it is characterised in that:
Described solar powered high salt organic waste-water treating apparatus includes multiple electrolysis being arranged in parallel Groove (105),
Capacitive deionization desalter (110) includes the many groups of capacitive deionization unit being arranged in parallel (301), and
Described capacitive deionization desalter (110) farther includes to be arranged on carbon back electric capacity the first electricity Cation exchange membrane (331) between pole (305) and carbon back electric capacity the second electrode (315) and the moon Ion exchange membrane (332), constitutes membrane capacitance deionization desalter,
Being added with filler between described cation exchange membrane and anion exchange membrane, this filler is from leading At least one material selected in electricity resin and activated carbon, to increase desalination and current efficiency.
8. according to the solar powered high salt treatment of Organic Wastewater dress one of claim 2-4 Suo Shu Put, it is characterised in that farther include:
The accumulator (113) supporting with described solar power supply apparatus (103), it is connected to the sun Energy electric supply installation (103), to receive and to store the unnecessary electricity that solar power supply apparatus (103) produces Can, and provide electrochemical oxidation electrolysis bath (105) and capacitive deionization to take off in the period lacking sunlight Electric power needed for the operation of salt device (110).
9. based at according to the solar powered high salt organic waste water one of claim 2-8 Suo Shu The high salt method for processing organic wastewater of reason device, it is characterised in that including:
A) make pending waste water by anode water inlet (211) and negative electrode water inlet (213) point Do not continuously enter anode chamber (104) and the cathode chamber (106) of described electrolysis bath (105),
B) at the external direct current applied by anode collector (208) and cathode current collector (209) Under the effect of electricity (2-4V), wait to locate described in anode chamber (104) with constant current charging mode The waste water of reason is electrolysed,
C) make the waste water in anode chamber (104) respectively through anode outlet (212) and negative electrode water outlet Mouth (214) flows out electrolysis bath (105), enters capacitive deionization desalter (110),
D) water outlet from electrochemical oxidation electrolysis bath (105) is made, by the silica gel sealing of hollow Water inlet (308) on circle (307), enters the desalting chamber that silica gel sealing ring (307) is internal, And the outlet (309) from silica gel sealing ring (307) of the water after process in desalting chamber Draw, and as the water outlet of capacitive deionization desalter (110),
E) apply with carbon back electric capacity the second electrode (315) to carbon back electric capacity the first electrode (305) 1.0-1.5V unidirectional current carries out capacitive adsorption deionizing, and capacitive deionization desalter (110) Water outlet as desalted water export,
F) electrical conductivity of water is gone out constantly by low liter when described capacitive deionization desalter (110) High and close to when entering electrical conductivity of water, stop the power supply to capacitive deionization desalter (110), Carbon back electric capacity the first electrode (305) and carbon back electric capacity second electrode of capacitive deionization desalter (315) the two poles of the earth short circuit and/or reversely direct current connection, discharge capacitive adsorption ion, and electric capacity gone The water outlet of ion desalter (110) exports as strong brine (112),
G) constantly drop by height when the water outlet conductivity of described capacitive deionization desalter (110) As little as during water inlet electrical conductivity, it is again switched on 1.0-1.5V unidirectional current, carries out desalination,
H) repeat the above steps E) to G).
Method the most according to claim 9, it is characterised in that:
Described step A) in the flow of waste water be 0.01-0.20ml/cm2Minute,
Anodic (202) electric current density at 5-50mA/cm2Scope,
Wherein,
The surface of the metal-oxide electro-catalysis coating on anode (202) produce include hydroxyl radical free radical, Chlorine and the oxidant of ozone, in waste water, dissolubility organic pollution and ammonia nitrogen are at described electrochemistry sun Surface, pole aoxidizes, and makes hardly degraded organic substance obtain mineralizing and degrading, and ammonia nitrogen obtains nitrification.
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