CN2164410Y - Paper making waste water treating device by electrodialysis - Google Patents
Paper making waste water treating device by electrodialysis Download PDFInfo
- Publication number
- CN2164410Y CN2164410Y CN 93223933 CN93223933U CN2164410Y CN 2164410 Y CN2164410 Y CN 2164410Y CN 93223933 CN93223933 CN 93223933 CN 93223933 U CN93223933 U CN 93223933U CN 2164410 Y CN2164410 Y CN 2164410Y
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- CN
- China
- Prior art keywords
- cathode compartment
- electrodialysis
- electrodialysis cell
- positive plate
- described device
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model relates to a treating device for industrial wastewater and waste liquid, particularly a paper-making waste water treating device which is formed by that a plurality of electrodialysis units are connected. Each unit comprises an anode plate, a cathode chamber and an electrodialysis cell; the anode plate and the cathode chamber are hung in the electrodialysis cell, and the shape of the anode plate is matched with the shape of the cathode chamber; a liquid inlet and a liquid outlet are arranged on the electrodialysis cell. The cathode chamber is composed of a frame, a cathode and cation exchange membranes, and the cation exchange membranes are stacked; an eyelet is opened on the frame, the middle of the frame is a hollow cavity, the upper part and the lower part of the frame have an inlet and an outlet, the outer layer of the frame is a cathode, and the cation exchange membranes are stacked outside the cathode.
Description
The utility model relates to the treatment unit of trade effluent, waste liquid.
Paper waste is to pollute serious, that quantity discharged is bigger a kind of ionic waste liquid, general large-scale paper mill adopts alkali reclaiming method to handle papermaking wastewater, can reclaim alkali and remove organism such as lignin, and to little factory, straw pulp mill particularly, utilize this method can run into economy and silicon interference problem, be difficult to adopt.In recent years, adopt electrodialytic method to handle papermaking wastewater, both recyclable alkali, can return lignin again, dividing plate, ion-exchange membrane and two-plate that this kind electrodialysis unit is alternately arranged by one deck are formed, the outside is tight dividing plate and mould with pressing plate and screw rod, form the sealing aquaporin, make it outwards not leak, and mainly contain alkali and lignin, sugar, acid, aldehydes matter in the black liquid, corrodibility is very strong, sodium is after isolating simultaneously, and lignin is deposited on and is insolubles on the mould, causes film to pollute, passage is obstructed, makes it to be used for to produce.
The purpose of this utility model is intended to overcome the deficiency of prior art, a kind of not only recyclable alkali, lignin is provided, but also can be used for industrial papermaking wastewater treatment device.
Papermaking wastewater treatment device described in the utility model is connected and is formed by several electrodialysis cell, there are positive plate, cathode compartment and electrodialysis cell in each unit, positive plate and cathode compartment are hung in the electrodialysis cell, and the shape and the cathode compartment of positive plate are complementary, and the liquid in-out mouth is arranged on the electrodialysis cell, cathode compartment is made of framework, negative electrode and cationic exchange film-stack, perforation on the framework, the centre is a cavity, upper and lower have import and export, the skin of framework is a negative electrode, the stacked cationic exchange membrane in negative electrode outside.
Device described in the utility model has solved preferably that film that electrodialysis process alkaline paper-making waste water run into pollutes and problem such as electrode corrosion, be used for producing and not only can reclaim alkali, and can reclaim useful matteies such as lignin, handled papermaking wastewater effectively, if further handle with chemistry or biochemical method, COD can remove more than 90%, and the water after the processing can reuse, and the utility model is specially adapted to the wastewater treatment in middle-size and small-size paper mill.
Below in conjunction with accompanying drawing the utility model is further described
Fig. 1 is the utility model structural representation
Fig. 2 is a cathode compartment structural representation described in the utility model.
As shown in FIG., this device is formed by several electrodialysis cell serial or parallel connections, how much the size of electrodialysis cell and quantity decide on the amount of disposing waste liquid, papermaking wastewater at first enters in the waste liquid tank 1, enter in the electrodialysis cell 3 of electrodialysis cell by waste liquid inlet 13, positive plate 4 and cathode compartment 5 are arranged in the electrodialysis cell, positive plate 4 and cathode compartment 5 can rise or put down by mast-up 14, electrodialysis cell 3 is made of impregnating material such as plastics or glass reinforced plastic, the structure of positive plate 4 and shape and cathode compartment 5 are complementary, can be tabular, ring-type or other shape, with holes or be not with and all can, material is a carbon element, positive plate 4 is 0.5-2cm with the distance of cathode compartment 5, cathode compartment 5 is by framework 12, negative electrode 11 and ion-exchange membrane 10 are formed, framework 12 is circle or deltiod, the centre is a cavity, and there is alkali lye (or water) to go into pipe 7, alkali lye goes out pipe 2, perforation on the cavity wall, negative electrode 11 is netted, be attached on the framework 12, the stacked cationic exchange membrane 10 in outside, the positively charged ion in the black liquid (as Na) is touched 10 by cationic exchange and is entered in the framework 12, become alkali lye, be provided with flow-stopping plate 6 in the electrodialysis cell 3, its effect is to make black liquid form from top to bottom the passage that flows in electrodialysis cell 3, among the figure 8,9 is supply lead sun negative electrode, 15 is blow-off pipe, aborning, on exchange membrane 10, the time to one regularly attached to sun for lignin class material, lignin class material can stop up cationic exchange and touch 10, at this moment can lead to lifting gear 14 and cathode compartment is moved up and down and reach unobstructed purpose.Lignin is discharged electrodialysis cell 3 with residual liquid, recycles.
Claims (8)
1, a kind of electrodialysis process paper waste device, it is characterized in that connecting and forming by several electrodialysis cell, there are positive plate 4, cathode compartment 5 and electrodialysis cell 3 in each unit, positive plate 4 and cathode compartment 5 are hung in the electrodialysis cell 3, the shape of positive plate 4 and cathode compartment 5 are complementary, the liquid in-out mouth is arranged on the electrodialysis cell 3, cathode compartment 5 constitutes by framework 12, negative electrode 11 and cationic exchange membrane 10 are stacked, perforation on the framework 12, the centre is a cavity, upper and lower have import and export, and the skin of framework 12 is a negative electrode 11, the stacked cationic exchange membrane 10 in negative electrode 11 outsides.
2, according to the described device of claim 1, it is characterized in that having mast-up 14, mast-up 14 is connected with cathode compartment 5 with positive plate 4.
3, according to the described device of claim 1, what it is characterized in that positive plate 4 and cathode compartment 5 is shaped as tabular or ring-type.
4, according to the described device of claim 1, the material that it is characterized in that positive plate 4 is a carbon element.
5, according to the described device of claim 1, it is characterized in that positive plate 4 and cathode compartment 5 apart from 0.5-2cm.
6,, it is characterized in that negative electrode 11 is for netted according to the described device of claim 1.
7,, it is characterized in that in the electrodialysis cell 3 by flow-stopping plate 6 according to the described device of claim 1.
8,, it is characterized in that framework 12 is circle or deltiod according to the described device of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93223933 CN2164410Y (en) | 1993-09-11 | 1993-09-11 | Paper making waste water treating device by electrodialysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93223933 CN2164410Y (en) | 1993-09-11 | 1993-09-11 | Paper making waste water treating device by electrodialysis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2164410Y true CN2164410Y (en) | 1994-05-11 |
Family
ID=33802110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93223933 Expired - Fee Related CN2164410Y (en) | 1993-09-11 | 1993-09-11 | Paper making waste water treating device by electrodialysis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2164410Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480277A (en) * | 2013-10-09 | 2014-01-01 | 内蒙古天一环境技术有限公司 | Dielectrophoresis flat permeable membrane component |
-
1993
- 1993-09-11 CN CN 93223933 patent/CN2164410Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480277A (en) * | 2013-10-09 | 2014-01-01 | 内蒙古天一环境技术有限公司 | Dielectrophoresis flat permeable membrane component |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |