CN103523865A - Device for treating phenol waste water by using third electrode - Google Patents
Device for treating phenol waste water by using third electrode Download PDFInfo
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- CN103523865A CN103523865A CN201310447095.7A CN201310447095A CN103523865A CN 103523865 A CN103523865 A CN 103523865A CN 201310447095 A CN201310447095 A CN 201310447095A CN 103523865 A CN103523865 A CN 103523865A
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Abstract
The invention relates to a device for treating phenol waste water by using a third electrode. The device comprises a reactor body, wherein the reactor body is provided with an anode plate and a cathode plate; and the third electrode with a regular shape is clamped between the anode plate and the cathode plate. The device for treating the phenol waste water by using the third electrode, provided by the invention, greatly reduces short-circuit current, increases effective reaction current, improves the mass transfer efficiency and the utilization ratio of particles, achieves a good treatment effect on the phenol waste water, and achieves profound significance in environmental protection.
Description
Technical field
The invention belongs to field of waste water treatment, relate in particular to a kind of device that utilizes third electrode to process phenolic waste water.
Background technology
In Industrial processes, can produce a lot of trade effluents, trade effluent refers to waste water, sewage and the waste liquid producing in Industrial processes, wherein contains the pollutent producing in the industrial production materials, intermediate product and the product that outflow with water and production process.Along with developing rapidly of industry, kind and the quantity of waste water rapidly increase, and the pollution of water body, also increasingly extensively with serious, is threatened to the mankind's health and safety, and therefore, for protection of the environment, the processing of trade effluent is particularly important.At present, conventionally adopt physics, chemistry, biological method to process trade effluent, make purification of waste water, reduce and pollute, so that reach waste water reclamation, multiplexing, make full use of water resources, but these treatment processs are difficult to meet purifying treatment requirement technically and economically.
Organic waste water for this hard degradation of picture phenolic waste water, normally adopt electrochemical process to process, although electrochemical process is processed waste water and generally is not needed to add pharmaceutical chemicals, aftertreatment is simple, convenient management, but face body ratio, material translational speed, current utilization rate and the treatment effect of its electrolyzer are not ideal.
For increasing the face body ratio of electrolyzer, the translational speed of raising material, introduced novel electrochemical reactor---three-diemsnional electrode, between traditional two-dimentional electrolytic tank electrode, load granular or other clastic electrode materialss, make electrode material surface that electrochemical reaction can occur.Yet, what in traditional three-dimensional electrode reactor bed, adopt is to huddle type filling mode, being about to granule electrode huddles between anode and negative electrode, granule electrode is under the washing away for a long time of current and air-flow, the layering gradually of conducting particles and insulating particle, thus cause short-circuit current to increase, and rate of mass transfer reduces, utilization ratio is low, and treatment effect is undesirable.
Summary of the invention
The present invention has overcome the deficiencies in the prior art, and a kind of simple in structure, short-circuit current is little, reaction current is large, utilization ratio is high, treatment effect is good phenolic waste water treatment unit is provided.
For achieving the above object, the technical solution used in the present invention is: a kind of device that utilizes third electrode to process phenolic waste water, comprise the reactor body that is provided with positive plate and negative plate, it is characterized in that: the third electrode that accompanies regular shape between described positive plate and negative plate.
In a preferred embodiment of the present invention, further comprise that described third electrode is cuboid by conducting particles and insulating particle accumulation, described conducting particles and insulating particle are cellular bonding.
In a preferred embodiment of the present invention, further comprise that the porosity between described conducting particles and insulating particle is 25%～50%.
In a preferred embodiment of the present invention, further comprise that the spacing between described third electrode and positive plate, negative plate is respectively 0.5cm～1cm.
In a preferred embodiment of the present invention, further comprise that described positive plate is stainless steel plate, negative plate is aluminium sheet.
In a preferred embodiment of the present invention, further comprise that described device also comprises the direct supply to described positive plate and negative plate energising.
In a preferred embodiment of the present invention, further comprise that described reactor body is provided with aeration head.
The invention solves the defect existing in background technology; the apparatus structure that utilizes third electrode to process phenolic waste water of the present invention is simple; greatly reduced short-circuit current; improved effective reaction current; mass-transfer efficiency and the utilization ratio of particle have been increased; the treatment effect of Pyrogentisinic Acid's waste water is better, concerning protection of the environment, has profound significance.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structural representation of the preferred embodiments of the present invention;
Fig. 2 is the conducting particles of third electrode in the present invention and the honeycomb structure schematic diagram of insulating particle;
In figure: 10, reactor body, 20, positive plate, 30, negative plate, 40, third electrode, 41, conducting particles, 42, insulating particle, 50, direct supply, 60, aeration head.
Embodiment
The present invention is further detailed explanation in conjunction with the accompanying drawings and embodiments now, and these accompanying drawings are the schematic diagram of simplification, basic structure of the present invention is only described in a schematic way, so it only shows the formation relevant with the present invention.
As shown in Figure 1, a kind of device that utilizes third electrode to process phenolic waste water, comprise and be provided with the positive plate 20 of formed objects and the reactor body 10 of negative plate 30, positive plate 20 is placed in reactor body 10 abreast with negative plate 30, accompanies the third electrode 40 of regular shape between positive plate 20 and negative plate 30.
In the present invention, third electrode 40 is cuboid, as shown in Figure 2, by conducting particles 41 and insulating particle 42 bondings, formed, and conducting particles 41 is cellular bonding with insulating particle 42, guarantee that the less conducting particles of third electrode 40 use 41 and insulating particle 42 reach again firm effect simultaneously, with minimum material, can reach maximum volume, provide cost savings.In the present invention, conducting particles 41 adopts granular gac, and insulating particle 42 adopts granulated glass spherees, and concrete available conductive resin mixes gac and granulated glass sphere that to put into cuboid mould curing and make the third electrode 40 of regular shape by a certain percentage.Gac with granulated glass sphere in mass ratio for 2:1 mixes, because, in phenol containing wastewater by active carbon, organism has superior absorption property, and because it has flourishing pore mechanism and huge specific surface area, the organic pollutant dissolving in Pyrogentisinic Acid's waste water has stronger adsorptive power; In reactor body 10, add gac, be equivalent to original two dimensional electric field to be converted into three-dimensional electric field, reaction interface increases, thereby has produced more microbubble, and the microbubble of generation has carried out forced convection to waste water, thereby has improved reaction efficiency; And the effect of granulated glass sphere is prevent from being short-circuited between gac and reduce reaction efficiency, and too much two Conferences affects the performance of gac, and therefore, the mass ratio of gac and granulated glass sphere is 2:1, can obtain higher reaction efficiency.In the present invention, the third electrode 40 of regular shape is by gac and granulated glass sphere are fixedly formed with conductive resin, and under the washing away for a long time of current and air-flow, conducting particles 41 and insulating particle 42 can layerings, and then greatly reduced the short-circuit current in reaction process, promoted reaction efficiency.
Further, the porosity that conducting particles 41 and insulating particle are 42 is 25%～50%, and porosity refers to that, in non-coherent material stacking volume, the void volume between particle accounts for the ratio of cumulative volume, and porosity and compaction rate are inverse ratio.Through test, find, the clearance of phenol improves along with the increase gradually of porosity, and this is because of the increase along with porosity, the water yield that can enter third electrode 40 is more and more, in same volume, accessible water increases, and unit volume treatment capacity increases, thereby improves the degradation rate of phenol; And the increase of porosity can further improve conductivity and the oxidation susceptibility of third electrode 40, the degradation rate of Pyrogentisinic Acid's waste water promotes to some extent; Experiment shows, when each interparticle porosity of third electrode 40 is 47.83%, phenol clearance reaches the highest.
Further, spacing between third electrode 40 and positive plate 20, negative plate 30 is respectively 0.5cm～1cm, little more a lot of than the spacing between anode and cathode in traditional two-dimentional electrolyzer, because the pole span of reactor body 10 interior electrodes is very important technical indicators, pole span is less, in reactor body, electrolysis voltage is less, produces accordingly power consumption also lower, thereby reaches energy-saving and cost-reducing effect.
Middle-jiao yang, function of the spleen and stomach pole plate of the present invention is stainless steel plate, and negative plate is aluminium sheet.Because, extremely important for electrochemical oxidation technology electrode materials, the effect of electrochemicial oxidation and efficiency are had to direct impact, because of stainless steel plate and aluminium sheet high temperature resistant in phenolic waste water, corrosion-resistant, work-ing life is longer, and selecting stainless steel plate is that positive plate, aluminium sheet are that negative plate is for preferably selecting.
The device that utilizes third electrode to process phenolic waste water provided by the invention, also comprises to the direct supply 50 of positive plate 20 and negative plate 30 energisings, on reactor body 10 bottoms, aeration head 60 is set, and by electrochemical oxidation process, processes phenolic waste water.
In sum, the processing efficiency of third electrode 40 Pyrogentisinic Acid's clearances of regular shape is better than huddling type granule electrode, because, although huddle the adsorption and oxidation performance that the granule electrode of type has utilized gac, Pyrogentisinic Acid's waste water has certain treatment effect, along with reaction is carried out phenol and is degraded and generates byproduct and be adsorbed on gac, cause coming in contact between gac, thereby cause the phenomenon that is short-circuited between gac, reaction current reduces gradually, has affected reaction efficiency; And the third electrode 40 of regular shape is due to gac and granulated glass sphere are fixed, reduced the short-circuit current in reaction process, avoid genetic horizon bed between particle to change, particle displacement, the mobile problem that reduces reaction current efficiency have been solved, the conductivity of particle, micro-electromotive force are strengthened, thereby the rate of utilization that has improved particle, has promoted reaction efficiency.
The apparatus structure that utilizes third electrode to process phenolic waste water of the present invention is simple, has greatly reduced short-circuit current, has improved effective reaction current; mass-transfer efficiency and the utilization ratio of particle have been increased; the treatment effect of Pyrogentisinic Acid's waste water is better, concerning protection of the environment, has profound significance.
Above foundation desirable embodiment of the present invention is enlightenment, and by above-mentioned description, related personnel can, within not departing from the scope of this invention technological thought, carry out various change and modification completely.The technical scope of this invention is not limited to the content on specification sheets, must determine technical scope according to claim scope.
Claims (7)
1. utilize third electrode to process a device for phenolic waste water, comprise the reactor body that is provided with positive plate and negative plate, it is characterized in that: the third electrode that accompanies regular shape between described positive plate and negative plate.
2. a kind of device that utilizes third electrode to process phenolic waste water according to claim 1, is characterized in that: described third electrode is piled up and is cuboid by conducting particles and insulating particle, and described conducting particles and insulating particle are cellular bonding.
3. a kind of device that utilizes third electrode to process phenolic waste water according to claim 2, is characterized in that: the porosity between described conducting particles and insulating particle is 25%～50%.
4. a kind of device that utilizes third electrode to process phenolic waste water according to claim 3, is characterized in that: the spacing between described third electrode and positive plate, negative plate is respectively 0.5cm～1cm.
5. a kind of device that utilizes third electrode to process phenolic waste water according to claim 4, is characterized in that: described positive plate is stainless steel plate, and negative plate is aluminium sheet.
6. according to a kind of device that utilizes third electrode to process phenolic waste water described in claim 1～5 any one, it is characterized in that: described device also comprises the direct supply to described positive plate and negative plate energising.
7. a kind of device that utilizes third electrode to process phenolic waste water according to claim 6, is characterized in that: described reactor body is provided with aeration head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310447095.7A CN103523865A (en) | 2013-09-27 | 2013-09-27 | Device for treating phenol waste water by using third electrode |
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| CN201310447095.7A CN103523865A (en) | 2013-09-27 | 2013-09-27 | Device for treating phenol waste water by using third electrode |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105461024A (en) * | 2015-12-21 | 2016-04-06 | 长江大学 | Three dimension electrode reaction unit |
| CN106976955A (en) * | 2017-04-26 | 2017-07-25 | 中国科学院生态环境研究中心 | Electrode, monopole room bioelectrochemistry equipment and the method for adjusting its hydraulic flow state |
| CN110436575A (en) * | 2019-07-25 | 2019-11-12 | 天津大学 | Remove the electric filter formula apparatus and system of pollutant |
| CN111747489A (en) * | 2020-08-12 | 2020-10-09 | 中国石油化工股份有限公司 | Electrochemical reactor and wastewater treatment device |
-
2013
- 2013-09-27 CN CN201310447095.7A patent/CN103523865A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105461024A (en) * | 2015-12-21 | 2016-04-06 | 长江大学 | Three dimension electrode reaction unit |
| CN105461024B (en) * | 2015-12-21 | 2018-01-05 | 长江大学 | Three-dimensional electrode reactor device |
| CN106976955A (en) * | 2017-04-26 | 2017-07-25 | 中国科学院生态环境研究中心 | Electrode, monopole room bioelectrochemistry equipment and the method for adjusting its hydraulic flow state |
| CN106976955B (en) * | 2017-04-26 | 2020-12-11 | 中国科学院生态环境研究中心 | Electrode, unipolar chamber bioelectrochemical device and method for adjusting hydraulic flow state of bioelectrochemical device |
| CN110436575A (en) * | 2019-07-25 | 2019-11-12 | 天津大学 | Remove the electric filter formula apparatus and system of pollutant |
| CN111747489A (en) * | 2020-08-12 | 2020-10-09 | 中国石油化工股份有限公司 | Electrochemical reactor and wastewater treatment device |
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Application publication date: 20140122 |