CN201325897Y - Waste water treatment equipment of multi-dimensional electrode electrical catalytic reactor of horizontal electrode plate - Google Patents

Waste water treatment equipment of multi-dimensional electrode electrical catalytic reactor of horizontal electrode plate Download PDF

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Publication number
CN201325897Y
CN201325897Y CNU2008202164881U CN200820216488U CN201325897Y CN 201325897 Y CN201325897 Y CN 201325897Y CN U2008202164881 U CNU2008202164881 U CN U2008202164881U CN 200820216488 U CN200820216488 U CN 200820216488U CN 201325897 Y CN201325897 Y CN 201325897Y
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Prior art keywords
plate
water
negative
inlet pipe
positive
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Expired - Lifetime
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CNU2008202164881U
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Chinese (zh)
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刘秀宁
汤捷
杜小军
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Nanjing Sage Environmental Protection Science & Technology Co Ltd
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Nanjing Sage Environmental Protection Science & Technology Co Ltd
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Abstract

The utility model relates to waste water treatment equipment of a multi-dimensional electrode electrical catalytic reactor of a horizontal electrode plate. The equipment comprises a shell body, an anode plate, a cathode plate, a particle electrode filled with anode and cathode plates, a water distributor, a water inlet pipe, an aerator, an air inlet pipe, a water outlet weir notch, a water outlet pipe and a power source, wherein the anode plate and the cathode plate are arranged in parallel; the particle electrode is filled between the anode plate and the cathode plate; the anode plate and the cathode plate are respectively connected with the anode and the cathode of the power source; the anode plate and the cathode plate are provided with a plurality of through holes and are horizontally placed in the shell body of the equipment; the water distributor, the water inlet pipe, the aerator and the air inlet pipe are installed at the lower part of the shell body of the equipment; the water outlet weir notch and the water outlet pipe are installed at the upper part of the shell body of the equipment. The waste water is evenly distributed by the water distributor and then flow through a reactor from bottom to top. The structural design of the horizontal electrode plate can not only avoid the water flow short circuit and improve the transmission effect, but also guarantee waste water to flow through the anode plate and the cathode plate alternately. The oxidization reaction of the anode plate and the reduction reaction of the cathode plate are in the same system so that different organic pollutants that can be degraded through oxidization reaction or reduction reaction in the waste water can be degraded.

Description

Wastewater treatment device of horizontal polar plate multi-electrodes electrocatalysis reactor
Technical field
The utility model relates to a kind of equipment with chemical electrolysis catalysis process processing high density, poisonous and harmful, organic waste water, belongs to the electrochemistry technical field of waste water processing.
Background technology
Electrochemical method is a kind of effective way of handling organic pollutant in the waste water.This method is the hot technology that current high concentrated organic wastewater is handled.
The mechanism that electrochemical method is handled waste water is to produce strong oxidizing substance (OH, H2O2, O2 etc.) in the reaction system, with organic pollutant generation direct oxidation and indirect oxidation reaction, the larger molecular organics of high density, difficult for biological degradation is decomposed into the small organic molecule of readily biodegradable, improve the biodegradability of waste water, even be inorganicss such as CO2 and H2O its permineralization.
The electrolytic reaction groove that early stage electrochemical reactor is made up of positive and negative metal polar plate is used for handling the heavy-metal pollution of waste water.
The new electrolysis reactor that applies different catalytic species formations on metal polar plate is the development of this technology, and it has further expanded the application of electrolysis reactor in wastewater treatment.The strong oxidizing property free radical that this electrolysis system produces in reaction process, the difficult degradation in the degradable waste water, macromole organic pollutant.Nineteen seventies, the utility model of ti-based coating DSA anode (Dimensionlly Stable Anodes) has promoted the development of this technology.
Traditional electrolytic catalysis equipment is simple two-dimensional plate electrode formula, equipment body is made of vertical placement, opposing parallel, interlaced yin, yang pole plate, auxiliary with power supply, the yin, yang pole plate can be the metal sheet of unlike material, water distribution board is positioned at its upper side, rising pipe is positioned at the equipment bottom, the sewage reactor of flowing through from top to down.The equipment of two-dimensional flat plate electric pole type exists area than little, shortcomings such as the space-time treatment capacity is little, current efficiency is low, energy consumption is big, cost height, and it is undesirable to handle the waste water effect.
Multidimension electrode is the granule electrode that the filling granulated material constitutes between the conventional two-dimensional electrode, and the area of three-diemsnional electrode electrocatalysis treatment facility is than increase greatly, and spacing of particle is little, thereby mass transfer in liquid phase efficient height.But existing three-diemsnional electrode electrocatalysis treatment facility still exists aeration effect, current efficiency, unit spatiotemporal efficiency and the not good enough problem of processing efficiency for the organic waste water of handling high density, difficult degradation.This is because the electrochemical oxidation speed of most of hardly degraded organic substances is generally smaller.
The pole plate of tradition electrolyzer is vertical the placement in equipment reactor, and water flow mode is the formula of seething.
Summary of the invention
Technical problem to be solved in the utility model is, overcomes the shortcoming of prior art, provides a kind of to the high horizontal plate structure of high concentrated organic wastewater processing efficiency, multiple polar wastewater treatment device of horizontal polar plate multi-electrodes electrocatalysis reactor.
It is as follows that this practical utility model solves the technical scheme that its technical problem adopts: wastewater treatment device of horizontal polar plate multi-electrodes electrocatalysis reactor, its composition comprises apparatus casing, parallel relative negative plate, positive plate, the granule electrode of filling between negative plate and positive plate, water distributor and connected water inlet pipe, aerator and connected inlet pipe, the water outlet weir notch, rising pipe and power supply, described negative plate, positive plate respectively with the negative pole of power supply, the anodal connection, it is characterized in that described negative plate, be distributed with some through holes on the positive plate, and negative plate, positive plate is placed horizontally in the apparatus casing, described water distributor, water inlet pipe, aerator, inlet pipe is positioned at the bottom of apparatus casing, described water outlet weir notch, rising pipe is positioned at the top of apparatus casing.
The utility model can also be realized by following further technical solution:
(1), the percentage of open area of described negative plate, positive plate is 6%~7%, through-hole aperture is 3~5mm;
(2), described positive plate is that the surface supports the titanium plate that contains elemental indium, tantalum, tin, antimony catalytic material, negative plate is titanium plate or graphite cake;
(3), the granule electrode of filling between negative plate, positive plate have vesicular structure, the particle diameter of granule electrode is 3~5mm;
(4), the granule electrode of filling between negative plate, positive plate has the ceramic particle of catalytic specie coating, uncoated ceramic particle and activated carbon granule to form in 2: 2: 1 by volume by load.;
(5), the negative plate, the positive plate that have some alternate horizontal positioned in the apparatus casing, be connected with the negative pole of power supply after the negative plate parallel connection, be connected with positive source after the positive plate parallel connection;
(6), be elementary cell with described wastewater treatment device of horizontal polar plate multi-electrodes electrocatalysis reactor, form array by series connection or mode in parallel;
The beneficial effects of the utility model are as follows:
(1), waste water bottom-up reactor that flows through after the water distributor uniformly distributing, the horizontal plate structure design had both been avoided the current short circuit, improved mass transfer effect, guaranteed that again waste water is alternately through negative plate, positive plate, the oxidizing reaction of positive plate and the reduction reaction of negative plate coexist as in the system, make in the waste water and can all obtain degradation treatment by the different organic pollutants of oxidizing reaction or reduction reaction degraded;
(2), the device structure novelty, traditional electrolysis anodic structure is improved, the anode POROUS TITANIUM PLATE scribbles multiple catalytic material and protecting materials, has increased the catalytic activity of electrode, has prolonged work-ing life, anode and cathode all has very strong corrosion resistance characteristic;
(3), negative plate, positive plate and filling have constituted the multidimension electrode reactive system jointly in interpolar, the granule electrode that supports the catalytic specie coating, improved the mass-transfer efficiency of waste water greatly, under electric field action, system generates hydroxyl radical free radical strong oxidic particles such as (OH) (H2O2, O2 etc.), can be effectively with the organic pollutant oxygenolysis in the waste water;
(4), cooperate the use of aeration tube, significantly improved the effect of aeration, thereby further improved the generation speed and the generation of system's oxidizing substance, improved the electrolytic catalysis processing efficiency of organic waste water.
The utility model is used for the high concentrated organic wastewater of poisonous and harmful, difficult for biological degradation to be handled.The strong oxidizing substance that produces in the system (OH, H2O2, O2 etc.) can react with organic pollutant generation direct oxidation reaction and the indirect oxidation in the waste water, the larger molecular organics of high density, difficult for biological degradation is decomposed into is easy to biodegradable small organic molecule, and be inorganicss such as CO2, H2O its permineralization.
Description of drawings
Fig. 1 is the utility model wastewater treatment device of horizontal polar plate multi-electrodes electrocatalysis reactor structure iron.
Fig. 2 is the utility model horizontal plate multidimensional granule electrode system and two-dimensional electrode system phenol solution TOC value variation diagram in time in the electrocatalysis process.
Fig. 3 is the utility model horizontal plate multidimensional granule electrode system and two-dimensional electrode system at phenol clearance variation diagram in time.
Shown in Fig. 1,1-apparatus casing, 2-positive plate, 3-negative plate, 4-granule electrode, 5-water distributor, 6-aerator, 7-effluent weir, 8-water inlet pipe, 9-rising pipe, 10-inlet pipe, 11-power supply.
Embodiment
With reference to the accompanying drawings and in conjunction with the embodiments the utility model is described in further detail.But the utility model is not limited to given example.
As shown in Figure 1, the utility model wastewater treatment device of horizontal polar plate multi-electrodes electrocatalysis reactor, its composition comprises apparatus casing 1, parallel relative negative plate 3, positive plate 2, the granule electrode 4 of filling between negative plate 3 and positive plate 2, water distributor 5 and connected water inlet pipe 8, aerator 6 and connected inlet pipe 10, water outlet weir notch 7, rising pipe 9 and power supply 11, negative plate 3, positive plate 2 respectively with the negative pole of power supply, the anodal connection, its improvements are described negative plate 3, be distributed with some through holes (not drawing among the figure) on the positive plate 2, and negative plate 3 and positive plate 2 levels and relative being positioned in the apparatus casing 1, water distributor 5, water inlet pipe 8, aerator 6, inlet pipe 10 is positioned at the bottom of apparatus casing 1, water outlet weir notch 7, rising pipe 9 is positioned at the top of apparatus casing 1.
In the utility model, the percentage of open area of negative plate, positive plate is 6%~7%, and through-hole aperture is 3~5mm.
In order to improve the electrocatalysis rate and the erosion resistance of positive plate 2, the titanium plate that constitutes positive plate has vesicular structure, and its surface is with the catalytic material and the protecting materials coating that contain elemental indium, tantalum, tin, antimony etc.
For stability, non-corrosibility and the work-ing life of improving negative electrode, negative plate 3 is the titanium plate among the embodiment, also can adopt graphite cake.
In order to improve the erosion resistance of catalytic efficiency and granule electrode, in an embodiment, granule electrode 4 adopts activated carbon granule and the ceramic particle with vesicular structure, particle diameter is 3~5mm, ceramic grain surface is with the catalytic material coating, and its coated substance mainly is complex metal oxides tindioxide (SnO2), antimonous oxide (Sb2O3), the Manganse Dioxide (MnO2) with good catalytic activity.
The composition of granule electrode: the ceramic particle of supported catalyst coating account for the granule electrode volume 40%, uncoated ceramic particle account for the granule electrode volume 40%, activated carbon granule accounts for 20% of granule electrode volume.Three kinds mix and are placed between negative plate, the positive plate, form the Bipolar Micro-Electrode electrode under electric field action.
Horizontal plate multidimension electrode structure of reactor provides multiple reaction path and has reacted solid space efficiently for the oxidative degradation of organic molecule, makes and can reach organic matter degradation effect and current efficiency preferably under the situation than less energy-consumption.
As shown in Figure 1, the negative plate 3, the positive plate 2 that have some alternate horizontal positioned in the utility model wastewater treatment device of horizontal polar plate multi-electrodes electrocatalysis reactor housing, be connected with the negative pole of power supply after the negative plate parallel connection, be connected with positive source after the positive plate parallel connection.
Can be elementary cell with described electric catalysis reactor sewage treatment equipment according to the needs of actual waste water work of treatment, form array by series connection or mode in parallel.
Shown in Fig. 2,3, under the identical situation of other conditions, handle the electrocatalysis characteristic test result figure of phenolic waste water for the utility model horizontal plate multidimensional granule electrode system and two-dimensional electrode system.As seen from the figure, through the 160min electrolysis, the phenol clearance of the utility model horizontal plate multidimensional granule electrode system brings up to 92.3% by 68.2% of two-dimensional electrode system, the TOC value of solution also reduces to 33.3% by 56.9% of two-dimensional electrode system, show that in the electrolysis system of the utility model horizontal plate multidimensional granule electrode very forceful electric power catalytic activity is more arranged on the granule electrode surface when oxidation of organic compounds takes place for main electrode surface.

Claims (6)

1, wastewater treatment device of horizontal polar plate multi-electrodes electrocatalysis reactor, its composition comprises apparatus casing, parallel relative negative plate, positive plate, the granule electrode of filling between negative plate and positive plate, water distributor and connected water inlet pipe, aerator and connected inlet pipe, the water outlet weir notch, rising pipe and power supply, described negative plate, positive plate respectively with the negative pole of power supply, the anodal connection, it is characterized in that described negative plate, be distributed with some through holes on the positive plate, and negative plate, positive plate is placed horizontally in the apparatus casing, described water distributor, water inlet pipe, aerator, inlet pipe is positioned at the bottom of apparatus casing, described water outlet weir notch, rising pipe is positioned at the top of apparatus casing.
2. wastewater treatment device of horizontal polar plate multi-electrodes electrocatalysis reactor according to claim 1 is characterized in that: the percentage of open area of described negative plate, positive plate is 6%~7%, and through-hole aperture is 3~5mm.
3, wastewater treatment device of horizontal polar plate multi-electrodes electrocatalysis reactor according to claim 1 is characterized in that: described positive plate is that the surface supports the titanium plate that contains elemental indium, tantalum, tin, antimony catalytic material, and negative plate is titanium plate or graphite cake.
4, wastewater treatment device of horizontal polar plate multi-electrodes electrocatalysis reactor according to claim 1 is characterized in that: the granule electrode of filling between negative plate, positive plate has vesicular structure, and the particle diameter of granule electrode is 3~5mm.
5, wastewater treatment device of horizontal polar plate multi-electrodes electrocatalysis reactor according to claim 1, it is characterized in that: the negative plate, the positive plate that have some alternate horizontal positioned in the apparatus casing, be connected with the negative pole of power supply after the negative plate parallel connection, be connected with positive source after the positive plate parallel connection.
6, according to any described wastewater treatment device of horizontal polar plate multi-electrodes electrocatalysis reactor in the claim 1 to 5, it is characterized in that: with described wastewater treatment device of horizontal polar plate multi-electrodes electrocatalysis reactor is elementary cell, forms array by series connection or mode in parallel.
CNU2008202164881U 2008-11-18 2008-11-18 Waste water treatment equipment of multi-dimensional electrode electrical catalytic reactor of horizontal electrode plate Expired - Lifetime CN201325897Y (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103086480A (en) * 2013-01-24 2013-05-08 昆明理工大学 Device and method for treating organic waste water through combination of anode filter bed and cathode filter bed
CN103103559A (en) * 2012-12-13 2013-05-15 苏州新区化工节能设备厂 Ionic membrane electrolytic bath
CN103114300A (en) * 2012-12-13 2013-05-22 苏州新区化工节能设备厂 Single-anode double-cathode ion-exchange membrane electrolytic unit cell
CN103936115A (en) * 2014-05-14 2014-07-23 中国科学院新疆理化技术研究所 Three-dimensional electro-fenton water treatment method
CN104045131A (en) * 2014-07-09 2014-09-17 中国电建集团中南勘测设计研究院有限公司 Porous polar plate for electrochemical heavy metal wastewater treatment equipment
CN104532336A (en) * 2014-12-31 2015-04-22 广州兴森快捷电路科技有限公司 Method for removing organic pollutants in electroplating solution
CN104603065A (en) * 2012-09-07 2015-05-06 夏普株式会社 Functional water generator
CN106006946A (en) * 2016-05-26 2016-10-12 南京大学 Electrolytically modified quartz sand filter bed and application thereof

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104603065A (en) * 2012-09-07 2015-05-06 夏普株式会社 Functional water generator
CN103114300A (en) * 2012-12-13 2013-05-22 苏州新区化工节能设备厂 Single-anode double-cathode ion-exchange membrane electrolytic unit cell
CN103103559A (en) * 2012-12-13 2013-05-15 苏州新区化工节能设备厂 Ionic membrane electrolytic bath
CN103086480A (en) * 2013-01-24 2013-05-08 昆明理工大学 Device and method for treating organic waste water through combination of anode filter bed and cathode filter bed
CN103086480B (en) * 2013-01-24 2014-04-02 昆明理工大学 Device and method for treating organic waste water through combination of anode filter bed and cathode filter bed
CN103936115A (en) * 2014-05-14 2014-07-23 中国科学院新疆理化技术研究所 Three-dimensional electro-fenton water treatment method
CN104045131A (en) * 2014-07-09 2014-09-17 中国电建集团中南勘测设计研究院有限公司 Porous polar plate for electrochemical heavy metal wastewater treatment equipment
CN104532336A (en) * 2014-12-31 2015-04-22 广州兴森快捷电路科技有限公司 Method for removing organic pollutants in electroplating solution
CN106006946A (en) * 2016-05-26 2016-10-12 南京大学 Electrolytically modified quartz sand filter bed and application thereof

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Granted publication date: 20091014