CN204675872U - A kind of Wastewater by Electric oxidation unit adopting hollow electrode plate - Google Patents
A kind of Wastewater by Electric oxidation unit adopting hollow electrode plate Download PDFInfo
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- CN204675872U CN204675872U CN201520344358.6U CN201520344358U CN204675872U CN 204675872 U CN204675872 U CN 204675872U CN 201520344358 U CN201520344358 U CN 201520344358U CN 204675872 U CN204675872 U CN 204675872U
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- electrode plate
- wastewater
- hollow electrode
- oxidation unit
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Abstract
The utility model relates to a kind of Wastewater by Electric oxidation unit adopting hollow electrode plate, it comprises cell body (1), is positioned at the inner multipair hollow electrode plate (2) be juxtaposed to each other of described cell body (1), the often pair of hollow battery lead plate (2) is spaced from each other and connect positive pole and the negative pole of power supply respectively, each hollow electrode plate (2) upper end has the opening (3) be communicated with its internal cavities, and each sidewall of each hollow electrode plate (2) all has several cinclides (4).Wastewater by Electric oxidation unit of the present utility model can effectively be eliminated pole plate passivation by spraying fluid via described opening (3), described internal cavities and described cinclides (4) in waste water successively and slow down concentration polarization phenomenon, and electrooxidation efficiency is increased dramatically.
Description
Technical field
The utility model belongs to industrial wastewater treatment device field.
Background technology
Wastewater processing technology is varied, comprises chemical precipitation method, redox process (comprising chemical reduction method and electrolytic process etc.), biologic treating technique and ion exchange method etc.
Wherein said electrolytic process comprises electrochemical oxidation process, and it refers to the organism in the oxidizing species deoxidation waste water adopting electrode materials to produce, and then it is carried out to the technology of mineralising or harmless treatment.The mechanism of action of electrochemical oxidation process mainly produces superoxide radical (O2), H by the effect of electrode materials
2o
2, hydroxyl radical free radical (OH) isoreactivity group is oxidized organism in water body.The method only occurs in water, and does not need separately to add catalyzer, avoids secondary pollution.Because its controllability is strong, non-selectivity, the advantages such as mild condition, so have reasonable treatment effect for the organism of bio-refractory.But, electro-oxidation reactor usually meets with two problems in actual applications: one is pole plate passivation problem, colloidalmaterial in waste water or organic thick substances easily as silting on negative electrode and anode, negative electrode and anode are stuck with paste, if irregularly cleared up, the contact of anode and cathode and waste water can be had a strong impact on, reduce electrode efficiency.Another is the problem of concentration polarization, that is, superoxide radical (O2), the H of battery lead plate generation
2o
2, hydroxyl radical free radical (OH) isoreactivity group, usually can only work within the scope of distance electrode plate surface number millimeter, and the organism contained in waste body outside this distance range cannot touch these active groups in fact, therefore be also difficult to oxidized, unless they to move near battery lead plate within several millimeters of scopes by diffusion.Pole plate passivation problem and concentration polarization problem all cause electrooxidation decrease in efficiency.
For pole plate passivation problem, mostly adopt in prior art and usually adopt mechanical process and ultrasonic method to clear up at the dirt of electrode plate surface alluvial, but such cleaning is wasted time and energy very much, and or electrode surface is damaged, need extra ultrasonic device is installed, increase cost.For concentration polarization problem, the method adopting the spacing shortening battery lead plate in prior art more, but this method can cause space in limited electrooxidation device occupied by a large amount of battery lead plates, causes wastewater streams flux to decline.Somebody adopts and passes into from electrooxidation bottom of device the method that air carries out aeration, attempt to solve pole plate passivation and concentration polarization problem, but practice shows, the air passed into still main in waste body bubbling, can not control them to be applied to emphatically on electrode plate surface, therefore improvement effect is limited.
Therefore, the pole plate passivation problem in field of waste water treatment electro-oxidation reactor in the urgent need to address and concentration polarization problem, to improve the efficiency of electrooxidation.
Utility model content
The purpose of this utility model is to provide a kind of Wastewater by Electric oxidation unit adopting hollow electrode plate, and it can solve pole plate passivation problem and concentration polarization problem effectively.
The Wastewater by Electric oxidation unit of employing hollow electrode plate of the present utility model, comprise cell body (1), be positioned at the inner multipair hollow electrode plate (2) be juxtaposed to each other of described cell body (1), the often pair of hollow battery lead plate (2) is spaced from each other and connect positive pole and the negative pole of power supply respectively, each hollow electrode plate (2) upper end has the opening (3) be communicated with its internal cavities, and each sidewall of each hollow electrode plate (2) all has several cinclides (4).
In specific embodiments of the present utility model, described opening (3) is communicated with external source of fluid, for external fluid being incorporated in the waste body of described hollow electrode plate outside via the cavity of described hollow electrode intralamellar part and described cinclides.Wherein said external source of fluid can be the gases such as air, oxygen, carbonic acid gas, stack gas, also can be the second waste water identical or different with pending waste water.
In specific embodiments of the present utility model, described cinclides (4) is lateral aperture or angling hole.Wherein angling hole can be inclined upwardly or downward-sloping hole, preferably downward-sloping hole.
In specific embodiments of the present utility model, the diameter of described cinclides 4 can be adjusted as required by technician, and can be such as 0.05mm-0.5mm, be preferably 0.05mm-0.2mm, be more preferably 0.1mm.
In preferred embodiment of the present utility model, the cinclides (4) on the sidewall of adjacent hollow battery lead plate is staggered layout each other.This layout that is staggered can be that level attitude is staggered, vertical position is staggered, or the two has concurrently.
In specific embodiments of the present utility model, described hollow electrode plate (2) is noble electrode or solubility electrode.Wherein said noble electrode is selected from Graphite Electrodes, Ti electrode or stainless steel electrode; Described solubility electrode chosen from Fe electrode, aluminium electrode or ferro-aluminium electrode.When it is noble electrode, then the Wastewater by Electric oxidation unit of employing hollow electrode plate of the present utility model only uses as electro-oxidation reactor; When it is solubility electrode, such as iron electrode, aluminium electrode or ferro-aluminium electrode.Then the Wastewater by Electric oxidation unit of employing hollow electrode plate of the present utility model can use as electro-oxidation reactor, those solubility electrodes be connected with positive source can use as electric flocculation reactor again, because can dissolve Fe under volts DS effect
2+and/or Al
3+, Fe
2+be easy to again be oxidized to Fe
3+, all can there is hydrolysis and produce colloidalmaterial even throw out the suspended impurity etc. in waste water is deposited to reactor bottom by flocculation sediment effect in them, achieve useless water purification in waste water.
The beneficial effects of the utility model are as follows: owing to have employed hollow electrode plate, and external fluid can enter into pending waste water via the internal cavities of described opening, described hollow electrode plate and described cinclides successively.When external fluid is high pressure fluid, because the cinclides on the relative two sides of two blocks of hollow electrode plates respect to one another is staggered setting, therefore from the battery lead plate of the fluid scouring offside of cinclides high speed ejection, remove the burs such as the mud on offside electrode plate surface, prevent pole plate passivation and the current efficiency that causes due to pole plate passivation declines; This high-speed jet effect also plays stirring action to the waste water between adjacent electrode plates, promotes the exchange of the waste water of waste body and battery lead plate wall surface, slows down concentration polarization problem thus.When external fluid is low-pressure fluid, from cinclides 4, the fluid of effusion may be not enough to jet on offside battery lead plate, but the fluid of effusion can wash away the mud of this battery lead plate self along the floating of self electrode wooden partition, prevents pole plate passivation by this autologous mode of washing away.No matter be high pressure fluid or low-pressure fluid, because there being certain pressure to exist, all can preventing pending waste water from entering in the internal cavities of described hollow electrode plate from described cinclides, avoiding the deposition of pollutent in hollow electrode intralamellar part cavity.
Accompanying drawing explanation
Fig. 1 is the structural representation of the hollow electrode plate in the Wastewater by Electric oxidation unit of employing hollow electrode plate of the present utility model.
Fig. 2 is after the hollow porous pole plate shown in Fig. 1 is cut open along M-M line and the view of looking along direction shown in arrow.
Fig. 3 is after the hollow porous pole plate shown in Fig. 1 is cut open along N-N line and the view of looking along direction shown in arrow.
Fig. 4 is after the hollow porous pole plate shown in Fig. 1 is cut open along K-K line and the view of looking along direction shown in arrow, which show respectively horizontal cinclides and the respective independently cinclides decoration form of inclination cinclides two kinds.
Fig. 5 is the schematic diagram of the Wastewater by Electric oxidation unit of employing hollow electrode plate of the present utility model, which schematically illustrates 8 hollow porous pole plates placed side by side, and be staggered between wherein adjacent cinclides setting.
In figure, Reference numeral implication is as follows:
1-cell body; 2-hollow electrode plate; 3-opening; 4-cinclides.
Embodiment
Be described in further details the utility model below in conjunction with embodiment and accompanying drawing, embodiment is only limitted to the utility model is described, but not to restriction of the present utility model.
Embodiment 1
Adopt the Wastewater by Electric oxidation unit of the employing hollow electrode plate shown in Fig. 5 to carry out electrooxidation process to waste water, pole plate material is titanium.Pending waste water is water outlet after pharmacy corporation biological treatment, and its index before treatment is as follows: COD=326mg/L, pH=6.69.Flow through this Wastewater by Electric oxidation unit with the flow of 1 tph, the voltage between adjacent hollow battery lead plate is 5.4V, passes into pressurized air from the opening 3 of hollow battery lead plate, and this air pressure is 0.2MPa.Experiment finds, the waste water COD after process becomes 78mg/L, and COD clearance is 76%.After this Wastewater by Electric oxidation unit runs 3 months continuously, COD clearance only drops to 75% slightly, and observe electrode plate surface almost do not have organism deposit phenomenon.
Comparative example 1
Hollow electrode plate in Wastewater by Electric oxidation unit in embodiment 1 is replaced with common solid Ti electrode plate, and in waste water, does not pass into air, all the other are constant, and process identical waste water under the processing condition identical with embodiment 1.Experiment finds, the waste water COD after process becomes 162mg/L, and COD clearance is 50.3%.After this Wastewater by Electric oxidation unit runs 3 months continuously, COD clearance drops to 41%, and observe electrode plate surface have obvious organism deposit phenomenon.Explanation pole plate passivation is serious, and the electrical efficiency of electrode declines.
Comparative example 2
Hollow electrode plate in Wastewater by Electric oxidation unit in embodiment 1 is replaced with common solid Ti electrode plate, and passes into air from the bottom of this electrooxidation device, all the other are constant, and process identical waste water under the processing condition identical with embodiment 1.Experiment finds, the waste water COD after process becomes 112mg/L, and COD clearance is 65.6%.After this Wastewater by Electric oxidation unit runs 3 months continuously, COD clearance drops to 48%, and observe electrode plate surface have visible organism deposit phenomenon.Illustrate that pole plate exists certain passivation, the electrical efficiency of electrode declines.
From above-mentioned Experimental comparison, Wastewater by Electric oxidation unit of the present utility model, because have employed hollow electrode plate, effectively eliminates pole plate passivation phenomenon, and greatly alleviates concentration polarization phenomenon, and therefore, electrooxidation efficiency is promoted greatly.
Claims (3)
1. one kind adopts the Wastewater by Electric oxidation unit of hollow electrode plate, it is characterized in that, it comprises cell body (1), is positioned at the inner multipair hollow electrode plate (2) be juxtaposed to each other of described cell body (1), the often pair of hollow battery lead plate (2) is spaced from each other and connect positive pole and the negative pole of power supply respectively, each hollow electrode plate (2) upper end has the opening (3) be communicated with its internal cavities, and each sidewall of each hollow electrode plate (2) all has several cinclides (4).
2. Wastewater by Electric oxidation unit according to claim 1, is characterized in that, wherein said cinclides (4) is lateral aperture or angling hole.
3. Wastewater by Electric oxidation unit according to claim 1, is characterized in that, the cinclides (4) on the sidewall of wherein adjacent hollow battery lead plate is arranged with being staggered each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520344358.6U CN204675872U (en) | 2015-05-25 | 2015-05-25 | A kind of Wastewater by Electric oxidation unit adopting hollow electrode plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520344358.6U CN204675872U (en) | 2015-05-25 | 2015-05-25 | A kind of Wastewater by Electric oxidation unit adopting hollow electrode plate |
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| Publication Number | Publication Date |
|---|---|
| CN204675872U true CN204675872U (en) | 2015-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520344358.6U Withdrawn - After Issue CN204675872U (en) | 2015-05-25 | 2015-05-25 | A kind of Wastewater by Electric oxidation unit adopting hollow electrode plate |
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|---|---|
| CN (1) | CN204675872U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104944534A (en) * | 2015-05-25 | 2015-09-30 | 北京华瑞创源环保科技有限公司 | Wastewater electrooxidation device using hollow electrode plates |
| CN117735676A (en) * | 2023-12-28 | 2024-03-22 | 青岛海发环保产业控股有限公司 | Equipment for advanced treatment of sewage and process method thereof |
-
2015
- 2015-05-25 CN CN201520344358.6U patent/CN204675872U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104944534A (en) * | 2015-05-25 | 2015-09-30 | 北京华瑞创源环保科技有限公司 | Wastewater electrooxidation device using hollow electrode plates |
| CN104944534B (en) * | 2015-05-25 | 2017-05-31 | 中大立信（北京）技术发展有限公司 | A kind of Wastewater by Electric oxidation unit of use hollow electrode plate |
| CN117735676A (en) * | 2023-12-28 | 2024-03-22 | 青岛海发环保产业控股有限公司 | Equipment for advanced treatment of sewage and process method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100096 Beijing city Haidian District producing up new Garden District 2 building two storey commercial housing 2205 rooms Patentee after: In dalixin (Beijing) Technology Development Co. Ltd. Address before: 100096 Beijing city Haidian District producing up new Garden District 2 building two storey commercial housing 2205 rooms Patentee before: Hua Ruichuan source, Beijing Environmental Protection Technology Co., Ltd |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150930 Effective date of abandoning: 20170531 |