CN101798129A - Electrochemical reactor - Google Patents
Electrochemical reactor Download PDFInfo
- Publication number
- CN101798129A CN101798129A CN201010300368A CN201010300368A CN101798129A CN 101798129 A CN101798129 A CN 101798129A CN 201010300368 A CN201010300368 A CN 201010300368A CN 201010300368 A CN201010300368 A CN 201010300368A CN 101798129 A CN101798129 A CN 101798129A
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- China
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- length
- cell body
- height
- electrochemical reactor
- slot body
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 210000005056 cell body Anatomy 0.000 claims description 23
- 230000000694 effects Effects 0.000 abstract description 7
- 238000002161 passivation Methods 0.000 abstract description 5
- 239000010865 sewage Substances 0.000 abstract description 4
- 239000010802 sludge Substances 0.000 abstract description 3
- 238000000151 deposition Methods 0.000 abstract 1
- 238000012545 processing Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000003487 electrochemical reaction Methods 0.000 description 2
- 230000005518 electrochemistry Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000013178 mathematical model Methods 0.000 description 1
- 229910001453 nickel ion Inorganic materials 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention relates to an electrochemical reactor comprising a cube-shaped slot body, and a plurality of polar plates are arranged in parallel in the vertical direction in the slot body; the bottom of the slot body is provided with a water inlet, and the top is provided with a water outlet. The electrochemical reactor is characterized in that the ratio of the length to the height of the slot body is 1:2.5-20, and the length and the height of the polar plate are the same as those of the slot body. The invention can reduce concentration difference, prevents sludge from depositing and passivation phenomenon of the polar plate, prolongs the service life of the polar plate and meanwhile also can effectively improve the sewage treatment effect.
Description
Technical field
The invention belongs to the environment protection sewage process field, more specifically, relate to electrochemical reactor used in the electrochemical treatment method.
Background technology
Electrochemistry main reaction that rises in water treatment has oxidation, reduction, indirect oxidation, indirect reduction, electricity flocculation, electric floating, electric Fenton effect, wherein COD being removed mainly is electric flocculation, oxidation and Fenton effect, a good reactor design, must consider the adequacy of three effect reactions, the adequacy of these reactions has very large related with the water flow mode of reactor
Its structure of electrochemical reactor all is that the polylith pole plate is arranged in parallel within the cell body, control current by water distributor, header, aforesaid various electrochemical reactions take place, to reach processing intent in flow through the from bottom to top zone of two pole plates of the current that order need to be handled in this process.Existing electrochemical reactor, general length is 600cm, highly is 800cm, and its ratio of growing tall is 3: 4, approaches square, and certainly, the size of pole plate wherein is consistent with reactor, and the ratio of growing tall is also about 3: 4
In the reactor use, the problem of pole plate passivation appears easily, and the applicant causes the flow velocity that has its source in of this problem not enough, thereby causes pole plate that bigger concentration difference is arranged through discovering in a large number, makes the pole plate passivation in the course of time.Simultaneously, flow velocity is crossed and also will be made slowly and the current undercompounding in zone influence treatment effect, also easy settled sludge.And if strengthen pressure simply, artificially improve flow velocity, will make pending current residence time in reactor not enough again, do not reach treatment effect.
Summary of the invention
The objective of the invention is to solve above-mentioned, a kind of electrochemical reactor of more reasonable structure is provided because of the low excessively problem of bringing of flow velocity
For this reason, the technical solution used in the present invention is such: electrochemical reactor, comprise the cell body of a cubic, and the in the vertical direction parallel rows is shown some pole plates in the cell body; The cell body bottom is provided with water-in, and the top is provided with water outlet; It is characterized in that: the length of cell body and the ratio of height are 1: between the 2.5-20, and the length of the length of pole plate, height and cell body, highly identical.
Optimized technical scheme be the ratio of the length of cell body and height 1: between the 5-10.
Best technical scheme is the ratio 1: 7.5 of length and the height of cell body.
The present invention has strengthened the length to height ratio of cell body and pole plate, as many as " stretching " runner between two pole plates, make its reduced cross-sectional area and the distance of flowing through prolongs, under the situation of constant flow, flow velocity has just improved naturally.On the other hand, according to hydromechanical knowledge as can be known, at the each point in cross section of flowing through, flow velocity is always not identical, certainly exists phenomenons such as turbulent flow, backwash, and these water flow modes change part, the source that causes concentration difference just in electrochemical reactor easily.Flow model is individual comparatively complicated mathematical model, and the cross-sectional shape of runner, length etc. all can influence water flow mode, and fluidic density, viscosity coefficient also have considerable influence to it, so wherein relation is difficult to express with function.Consider that at the electrochemistry sewage treatment area, the physical properties of the current of handling is consistent substantially, simultaneously the distance between two pole plates also is constant substantially, so can verify by experiment and obtain preferably that runner designs.The applicant obtains technical scheme of the present invention by a large amount of tests, can improve the effect of sewage disposal effectively, prolongs pole plate work-ing life.
Description of drawings
Fig. 1 is the structural representation of electrochemical reactor of the present invention.
Embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
Embodiment 1
Referring to accompanying drawing, present embodiment comprises the cell body 1 of a cubic, and the in the vertical direction parallel rows is shown some pole plates 2 in the cell body 1, and described pole plate 2 is relative positive/negative plate, has between the pole plate 2 to hold the runner that staying water is flowed through; Cell body 1 bottom is provided with water-in 3, and the top is provided with water outlet 4; The length of cell body 1 be 200cm, height for 1500cm, the length of pole plate 2, height and the length of cell body 1, highly identical.
This example principle of work mainly is the ratio by length that strengthens cell body 1 and pole plate 2 and height, thereby the length of runner between " stretchings " pole plate 2 is dwindled the cross section of runner, to accelerate flow velocity, reduces concentration difference and avoids settled sludge.In use, pole plate 2 energising, waste water enters cell body 1 from water-in 3, the runner between the pole plate of flowing through 2, waste water cooperates with pole plate 2 when flowing through between the pole plate 2 runner, carries out the electrochemical reaction processing, from water outlet 4 outflows, finishes processing again.
Embodiment 2
Utilize the present invention that certain factory's electroplating wastewater is handled, same former water divides five processing, and pole plate adopts different length to height ratios.Wherein be prior art at 3: 4, adopts technical scheme of the present invention 4 times in addition, and the removal to COD, cupric ion and nickel ion compares respectively.Handle for five times and adopt identical voltage, electric current, frequency, reaction times.Test conditions: voltage 100V, electric current 5A, 5 minutes reaction times.
Water quality data after former water and the processing sees the following form.
As seen, length to height ratio was made as 1: 7.5th, the best-of-breed technology scheme.
Through long-time continuous test, through observing, pole plate passivation phenomenon of the present invention obviously weakens simultaneously, especially in 1: 7.5 and 1: 10 two kinds of scheme, the pole plate passivation phenomenon does not take place.
Claims (3)
1. electrochemical reactor comprises the cell body of a cubic, and the in the vertical direction parallel rows is shown some pole plates in the cell body; The cell body bottom is provided with water-in, and the top is provided with water outlet; It is characterized in that: the length of cell body and the ratio of height are 1: between the 2.5-20, and the length of the length of pole plate, height and cell body, highly identical.
2. electrochemical reactor according to claim 1 is characterized in that: the length of cell body and the ratio of height are 1: between the 5-10.
3. according to the described electrochemical reactor of claim 2, it is characterized in that: the length of cell body is 1: 7.5 with the ratio of height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010300368A CN101798129A (en) | 2010-01-15 | 2010-01-15 | Electrochemical reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010300368A CN101798129A (en) | 2010-01-15 | 2010-01-15 | Electrochemical reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101798129A true CN101798129A (en) | 2010-08-11 |
Family
ID=42593997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010300368A Pending CN101798129A (en) | 2010-01-15 | 2010-01-15 | Electrochemical reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101798129A (en) |
-
2010
- 2010-01-15 CN CN201010300368A patent/CN101798129A/en active Pending
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20100811 |