CN204848534U - Based on capacitanc sewage and waste water treatment equipment under direct current field effect - Google Patents

Based on capacitanc sewage and waste water treatment equipment under direct current field effect Download PDF

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Publication number
CN204848534U
CN204848534U CN201520426524.7U CN201520426524U CN204848534U CN 204848534 U CN204848534 U CN 204848534U CN 201520426524 U CN201520426524 U CN 201520426524U CN 204848534 U CN204848534 U CN 204848534U
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China
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sewage
water
effect
negative electrode
treatment equipment
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Expired - Fee Related
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CN201520426524.7U
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Chinese (zh)
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崔琳
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Beijing to create energy-saving environmental protection technology Co., Ltd.
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Beijing Gongchuangfulai Water Processing Equipment Co Ltd
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    • 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
    • Y02A20/131Reverse-osmosis
    • 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
    • Y02W10/33Wastewater or sewage treatment systems using renewable energies using wind 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 utility model provides a based on capacitanc sewage and waste water treatment equipment under direct current field effect, contains salt sewage or waste water and after preliminary treatment such as sand filtration and ultrafiltration, gets into two -stage electric capacity deionization module in proper order and accomplish 95% desalination acquisition fresh water, and the retreatment of first order electric capacity deionization module can be got back to through backflow pipeline to the dense water of back flush. The utility model has the advantages that: ion grid in the electric capacity deionization module can effectively prevent reverse charge desorption in -process yin, yang ion to be adsorbed by the electrode, has improved washing, regeneration effect and the work efficiency of electrode, adopt two -stage electric capacity deionization module to dispose of sewage, reduced the operating pressure, this makes and to use PVC plastics material to substitute dear duplex stainless steel, has thoroughly solved in the sewage salinity to metal pipeline's corrosion problems, and water use rate is showing and is higher than the reverse osmosis membrane method. In addition, the operating pressure's of system reduction still can save the investment of the concentrated water energy recuperation device of dear reverse osmosis membrane method.

Description

Based on condenser type sewage and sewage treatment equipment under DC electric field effect
Technical field
The utility model relates to a kind of sewage and sewage treatment equipment, specifically a kind of based on condenser type water and wastewater treatment equipment under DC electric field effect.
Background technology
Along with the expansion of expanding economy and population, industry and the water resources needed for life day by day deficient, water resources purifying treatment has become question of common concern in world wide.Solving the method for water resources shortage has a lot, wherein water resources in dirty (give up) Water circulation and exploitation, and the repeating utilization factor namely improving water is the effective way of current many national solution shortage of water resources.New " Law on Environmental Protection " of country also went into effect on January 1st, 2015 simultaneously, and to the requirement increasingly stringent of dirty (giving up) water discharge of industry, require must suitably process dirty (giving up) water, making it reach emission standard could discharge.
The continuous maturation of water technology, particularly the development of membrane separation technology provides new technique means to the process discharge up to standard of city, dirty (giving up) water of industry and reuse in recent years.But, although the many pollutents in water can be removed by methods such as traditional coagulation, precipitation, filtration, absorption, but for reuse or the higher occasion of emission request, as the removal for the salt be dissolved in water then needs to adopt suitable desalination means to realize.
The desalination method of common water has distillation, reverse osmosis, electrodialysis, ion-exchange etc.In the existing ultrafiltration/micro-filtration of industry member and nanofiltration, reverse osmosis (multimembrane method) is integrated carries out the practice that dirty (give up) water of industry removes Ficus caricaL, reduce dirt (giving up) water to the pollution of nanofiltration, reverse osmosis membrane assembly by employing ultrafiltration, micro-filtration, achieve certain experience.But, due to complex process when multimembrane method is used for dirty (give up) Water circulation, running cost is high, must water rate lower, the work-ing life of membrane module wants much shorter compared with during conventional water treatment, need to adopt a large amount of reductive agent and Scale inhibitors simultaneously, make the discharge of dense water be difficult to meet the requirement of environmental protection.Therefore, in dirty (giving up) Water circulation field, there is problem unreasonable in Technological Economy, the overall investment of engineering is very high, and running cost remains high.Therefore, find a kind of to dirty (giving up) water better tolerance, can with lower running cost carry out desalination again environment amenable desalination technology become an important subject of industry.
In the last few years, people were finding always and are replacing the multimembrane method with certain use scale to carry out dirty (giving up) water treatment of industry with development new technologies.Along with the improvement raising of the material such as homogeneous ion-exchange membrane, active carbon with high specific surface area and the optimization of structural parameter, a kind of novel showing up prominently gradually based on condenser type dirt (giving up) water desalination technology under DC electric field effect, technically and cost, advantage in running cost make it demonstrate good application and development prospect.Condenser type dirt (giving up) water desalination technology is electric field action when utilizing capacitor charging, through the anions and canons in the water of electric capacity or other solution or other charged particles, electrode surface to oppositely charged moves, form electrostatic double layer, thus make the salt in water, colloidal solid and other charge species be trapped in electrode surface, realize desalination and the purification of water or other solution, this process is called absorption of just charging.When electrode adsorption is saturated, electrode is removed voltage and allows electrostatic double layer discharge or apply reverse voltage, the charged particle being adsorbed on electrode surface gets off from electrode surface desorption, thus realizes the regeneration of electrode, can carry out charge and discharge cycles process next time, this process is called reverse charge desorption.Therefore, condenser type dirt (giving up) water desalination technology has following characteristics: 1) operating voltage is low, can utilize the natural green energy resources such as sun power, wind energy, tidal energy; 2) operating hydraulic pressure is low, and without the need to metal and the mechanical means of high-voltage-resistant anti-corrosion, use cheap plastic conduit to meet the demands, without the need to anticorrosion, hardware investment is saved very much; 3) loose to pre-processing requirements; 4) equipment is simple, easy and simple to handle, reduces maintenance greatly.
This capacitive deionization module in the process of above-mentioned reverse charge desorption, there is following problem: when capacitive deionization module is at reverse charge desorption (electrode apply reverse voltage), be adsorbed on the positively charged ion on negative pole, and the negatively charged ion be adsorbed on positive pole departs from and passes corresponding porous charcoal film and gets back in solution, very little by the spacing between positive and negative electrode, the positive and negative ion of some desorption by the electrode on opposite (polarity is contrary) absorption in the past, this just have impact on cleaning and the regeneration effect of capacitive deionization module positive and negative electrode, reduces working efficiency.In addition, the pole distance of existing technology reaches more than 10mm, makes ion longer to the path of the electrode surface directional migration of oppositely charged, also reduces working efficiency.
Summary of the invention
The purpose of this utility model is to provide one based on condenser type sewage and sewage treatment equipment under DC electric field effect, increases work efficiency, and reduces cost of investment and the running cost of sewage or waste water process to greatest extent.
To achieve these goals, the technical solution adopted in the utility model is: a kind of based on condenser type sewage and sewage treatment equipment under DC electric field effect, comprise the pretreatment unit by pipeline successively series connection and capacitive deionization module, spaced negative electrode and positive electrode is provided with in this capacitive deionization module, it is characterized in that, negative electrode porous charcoal film and positive electrode porous charcoal film is respectively equipped with in the side that described negative electrode is relative with positive electrode, negatively charged ion grid and positively charged ion grid is respectively equipped with in the relative side of two porous charcoal films, at the moon, screen cloth is provided with between positively charged ion grid, the outside clamping piece of negative electrode and positive electrode mutually adds and fastens, described anions and canons barrier adopts homogeneous phase or heterogeneous anions and canons exchange membrane respectively.
The thickness of described screen cloth is 1mm ~ 5mm.
Described negative electrode and positive electrode adopt titanium, graphite or other corrosion-resistant conductors to make; The material of porous charcoal film comprises graphite, gac, activated carbon fiber, charcoal-aero gel or carbon nanotube; Described screen cloth comprises polypropylene screen cloth, terylene, nonwoven polypropylene fabric.
Two-stage or multistage described capacitive deionization block coupled in series is adopted to realize the desalting process of sewage or waste water.
Described pretreatment unit comprises the flocculation sediment sewage water tank, sand-bed filter and the ultra-fine filter that connect successively.
The utility model has the advantages that: the ion grid in capacitive deionization module can effectively stop anions and canons in reverse charge desorption process by electrode adsorption, to improve the cleaning of electrode, regeneration effect and working efficiency; Adopt two-stage capacitive deionization resume module sewage, reduce working pressure, this makes it possible to use PVC plastic material to substitute expensive duplex stainless steel, thoroughly to solve in sewage or waste water salinity to the etching problem of metallic conduit, and water use efficiency is significantly higher than reverse osmosis membrane.In addition, the reduction of system running pressure also can save the investment of expensive reverse osmosis membrane condensed water energy recycle device.
Accompanying drawing explanation
Fig. 1 is the formation schematic diagram of the utility model condenser type sewage or waste water treatment facility;
Fig. 2 is the structural representation of capacitive deionization module of the present utility model.
Description of reference numerals:
1-sewage water tank; 2-force (forcing) pump; 3-sand-bed filter; 4-ultra-fine filter; 41-ultra-fine filter water port; 5-direct supply; 6-first step capacitive deionization module; 7-intermediate water tank; 8-force (forcing) pump; 9-direct supply; 10-second stage capacitive deionization module; 11-product water tank; 12-Trunk Line; 13-back flushing concentrated water discharge mouth; 14-sewage inlet; 15-reflux line; 61-negative electrode; Porous charcoal film in 62-negative electrode; 63-positive ion grid; 64-screen cloth; 65-negative ion grid; Porous charcoal film on 66-positive electrode; 67-positive electrode.
Embodiment
See Fig. 1 and Fig. 2, the utility model is a kind of based on the condenser type sewage or waste water treatment facility under DC electric field effect, comprises the pretreatment unit by main pipeline 12 successively series connection and capacitive deionization module.The pretreatment unit of this embodiment is by the sewage water tank 1 connected successively, sand-bed filter 3 and ultra-fine filter 4 form, processed sewage or waste water introduces raw material sewage water tank 1 from sewage inlet 14, suitable flocculation agent (for routine techniques) is added according to sewage character, and macrobead in sewage is accelerated by stirring in water tank, the cohesion of colloid, and by granule foreign that the sewage draining exit periodic exhaustion of water tank bottom condenses, the clear water force (forcing) pump 2 on upper strata is pressed into sand-bed filter 3 and carries out coarse filtration, then filter further through ultra-fine filter 4, filtering algae, turbid, bacterium, larger molecular organics.This embodiment adopts the capacitive deionization module 6 and 10 that two-stage is identical to connect.The basic structure of first step capacitive deionization module 6 of the present utility model or second stage capacitive deionization module 10 is see Fig. 2, spaced negative electrode 61 and positive electrode 67 is provided with in inside, porous charcoal film 62 and 66 is respectively provided with in the side that described negative electrode 61 is relative with positive electrode 67, two porous charcoal films 62 with 66 relative side be respectively equipped with positive ion grid 65 and negative ion grid 63, between positive and negative ion grid, be provided with screen cloth 64.The outside clamping piece of negative electrode 61 and positive electrode 67 is mutually added by bolt and fastens (routine techniques, not shown).
Capacitive deionization modular structure shown in Fig. 2 is elementary cell, and each Rotating fields in the capacitive deionization module of actual application is repeatedly arranged in a combination, and the quantity of repeated arrangement is determined by processing the water yield.
Capacitive deionization module 6 and 10 of the present utility model is exactly add positive and negative ion grid 63 and 65 respectively as ion-exchange membrane on porous charcoal film 62 surface of both sides from conventional different places, cover negative ion barrier 65 with on the porous charcoal film 62 of positive electrode 67 side, the porous charcoal film 62 of negative electrode 61 side covers positive ion barrier 63.Screen cloth 64 plays the effect of electrode, porous charcoal film and the ion grid separating relative both sides, and forms water stream channel, can also increase turbulent extent.The thickness of screen cloth 64, namely the pole distance of the yin, yang electrode of capacitive deionization module is 1mm ~ 5mm, and the pole distance of this and existing technology reaches more than 10mm and has significant progress, is also the key improvement realizing industrial applications.The little ion that can make of interpole gap is short to the path of the electrode surface directional migration of oppositely charged, and current easily reach turbulent extent, reduce the resistance of diffusion mobility.
Positive ion barrier 63 and negative ion barrier 65 are respectively anions and canons exchange membrane, as homogeneous membrane adopts the multipolymer of polyethylene, polypropylene and active group three, basement membrane is made by methods such as stretching, curtain coating, coatings, then carry out graft reaction, obtain (for routine techniques) finally by aftertreatment.The Essential Performance Requirements of ion-exchange membrane comprises: thickness 15nm ~ 50nm, exchange capacity 1.2mol/kg ~ 2.2mol/kg, surface resistance 3 Ω cm 2~ 5 Ω cm 2, select transmitance to be greater than 90%.Its effect is when capacitive deionization module is at reverse charge desorption, namely electrode applies reverse voltage, the negative electrode 61 in cationic exchange membrane (i.e. positive ion grid 63) direction by negative change just, formed with positively charged ion and repel, the positively charged ion be adsorbed on porous charcoal film 62 departs from and passes cationic exchange membrane to be got back in solution; The positive electrode 67 in anion-exchange membrane (i.e. negative ion grid 65) direction, by just becoming negative, is formed with negatively charged ion and repels, and the negatively charged ion be adsorbed on porous charcoal film 66 departs from and passes anion-exchange membrane to be got back in solution.These get back to the positive and negative ion in solution, can not be adsorbed onto in the porous charcoal on opposite due to the stop of relative anions and canons exchange membrane, can only stay in the solution, at this moment, it is concentrated that the ionic concn flowed out in solution improves formation to heavens, capacitive deionization module is cleaned and is regenerated, and prepares to carry out absorption next time.It is more thorough that the application of ion barrier maximum benefit regenerates when being exactly and enabling capacitive deionization module reverse charge desorption, decreases the work of artificial sour, alkali cleaning module to greatest extent, be conducive to water conservation and environment.
Described negative electrode 61 and positive electrode 67 adopt titanium, graphite or other corrosion-resistant conductors to make; The material of porous charcoal film comprises graphite, gac, activated carbon fiber, charcoal-aero gel or carbon nanotube; The material of described screen cloth 64 comprises polypropylene screen cloth, terylene, nonwoven polypropylene fabric.
Last it is noted that above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not depart from the spirit and scope of technical solutions of the utility model.

Claims (4)

1. one kind based on condenser type sewage and sewage treatment equipment under DC electric field effect, comprise the pretreatment unit by pipeline successively series connection and capacitive deionization module, spaced negative electrode and positive electrode is provided with in this capacitive deionization module, it is characterized in that, negative electrode porous charcoal film and positive electrode porous charcoal film is respectively equipped with in the side that described negative electrode is relative with positive electrode, negatively charged ion grid and positively charged ion grid is respectively equipped with in the relative side of two porous charcoal films, at the moon, screen cloth is provided with between positively charged ion grid, the outside clamping piece of negative electrode and positive electrode mutually adds and fastens, described anions and canons barrier adopts homogeneous phase or heterogeneous anions and canons exchange membrane respectively, described pretreatment unit comprises the flocculation sediment sewage water tank, sand-bed filter and the ultra-fine filter that connect successively.
2. according to claim 1ly it is characterized in that based on condenser type sewage and sewage treatment equipment under DC electric field effect, the thickness of described screen cloth is 1mm ~ 5mm.
3. according to claim 1ly it is characterized in that based on condenser type sewage and sewage treatment equipment under DC electric field effect, described negative electrode and positive electrode adopt titanium, graphite or other corrosion-resistant conductors to make; The material of described negative electrode porous charcoal film and positive electrode porous charcoal film comprises graphite, gac, activated carbon fiber, charcoal-aero gel or carbon nanotube; Described screen cloth comprises polypropylene screen cloth, terylene, nonwoven polypropylene fabric.
4. according to claim 1ly to it is characterized in that based on condenser type sewage and sewage treatment equipment under DC electric field effect, adopt two-stage or multistage described capacitive deionization block coupled in series to realize the desalting process of sewage or waste water.
CN201520426524.7U 2015-06-19 2015-06-19 Based on capacitanc sewage and waste water treatment equipment under direct current field effect Expired - Fee Related CN204848534U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104944647A (en) * 2015-06-19 2015-09-30 北京共创富来水处理设备有限公司 Capacitance type sewage and waste water treatment device and method based on action of direct current electric field
CN105776654A (en) * 2014-12-26 2016-07-20 青岛海尔智能技术研发有限公司 Water purifying device and control method thereof
CN108164059A (en) * 2018-01-30 2018-06-15 浙江工业大学膜分离与水处理协同创新中心湖州研究院 A kind of embrane method processing cocoon boiling wastewater and the method for recycling sericin
CN108264180A (en) * 2015-12-23 2018-07-10 倍杰特国际环境技术股份有限公司 The Zero discharge treatment method and system of a kind of high slat-containing wastewater

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105776654A (en) * 2014-12-26 2016-07-20 青岛海尔智能技术研发有限公司 Water purifying device and control method thereof
CN104944647A (en) * 2015-06-19 2015-09-30 北京共创富来水处理设备有限公司 Capacitance type sewage and waste water treatment device and method based on action of direct current electric field
CN108264180A (en) * 2015-12-23 2018-07-10 倍杰特国际环境技术股份有限公司 The Zero discharge treatment method and system of a kind of high slat-containing wastewater
CN108264180B (en) * 2015-12-23 2020-07-10 倍杰特集团股份有限公司 Zero-emission treatment method and system for high-salt-content wastewater
CN108164059A (en) * 2018-01-30 2018-06-15 浙江工业大学膜分离与水处理协同创新中心湖州研究院 A kind of embrane method processing cocoon boiling wastewater and the method for recycling sericin

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CP01 Change in the name or title of a patent holder

Address after: 102613 Beijing Hengye Tongzhou District Yongle Economic Development Zone Street No. 17

Patentee after: Beijing to create energy-saving environmental protection technology Co., Ltd.

Address before: 102613 Beijing Hengye Tongzhou District Yongle Economic Development Zone Street No. 17

Patentee before: BEIJING GONGCHUANGFULAI WATER PROCESSING EQUIPMENT CO., LTD.

C56 Change in the name or address of the patentee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20151209

Termination date: 20190619

CF01 Termination of patent right due to non-payment of annual fee