CN100409926C - Frequently pole-reversing electroosmosis method for extracting and concentrating sodium lactate from garbage fermentation liquid - Google Patents
Frequently pole-reversing electroosmosis method for extracting and concentrating sodium lactate from garbage fermentation liquid Download PDFInfo
- Publication number
- CN100409926C CN100409926C CNB200610009657XA CN200610009657A CN100409926C CN 100409926 C CN100409926 C CN 100409926C CN B200610009657X A CNB200610009657X A CN B200610009657XA CN 200610009657 A CN200610009657 A CN 200610009657A CN 100409926 C CN100409926 C CN 100409926C
- Authority
- CN
- China
- Prior art keywords
- electrode
- electrodialysis plant
- sodium lactate
- electrodialysis
- electric capacity
- Prior art date
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The present invention provides a frequently pole-reversing electroosmosis method for extracting and concentrating sodium lactate from garbage fermentation liquid, which relates to a method for extracting and concentrating sodium lactate and a device thereof. In order to solve the problem of membrane pollution existing in the traditional electrodialysis method for extracting and concentrating sodium lactate from garbage fermentation liquid, the method of the present invention comprises: 1, adding a required solution for extracting the sodium lactate; 2, installing an additional device; 3, starting the device: the polarities of a first electrode (1-1) and a second electrode (1-2) of an electrodialysis device (1) are exchanged for one time by a frequently pole-reversing circuit (2) every 10 to 30 minutes in the process of electrodialysis; 4, regulating valves: after the electrodes are converted every time, four two-position three-way direction control valves are all regulated so as to work at the other working position. The method of the present invention reduces the pollution, prolongs the service life of the membrane and saves cost, the recovery rate of the sodium lactate can be over 90%, and the concentration of the concentrated sodium lactate can be over 18%.
Description
Technical field
The present invention relates to a kind of extraction and method for concentration and device thereof of sodium lactate.
Background technology
Electrodialysis (Electrodialysis, be called for short ED) be a kind of membrane separation technique efficiently, it utilizes electric field, promote ion and come lactic acid in the separation and Extraction zymotic fluid by having the amberplex that allows ion selectivity to see through, as the described lactic acid electrodialysis of ZL8710485.8 patent extracting method, be characterized in the separative efficiency height, energy consumption is low, is convenient to suitability for industrialized production and control automatically.Since the eighties in 20th century, there have been many scholars that electroosmose process is reclaimed organic acid from zymotic fluid and studied.But owing to the film pollution of ED method is not effectively solved the application that has influence on its and reclaim the field at organic acid.
Chinese patent ZL8710485.8 discloses lactic acid electrodialysis extraction process and equipment, and is quite serious to the pollution of film but this patent is not considered the pollution of zymotic fluid to film, particularly garbage fermentation liquid.Chinese patent ZL94247861.4 discloses the electrode assembly that a kind of electrode pad is a duplex, enables different pair of electrodes pole plates respectively before and after the alternating polarity conversion, and electrode pad is always worked under the polarity condition that is suitable for this material the best.But this patent had solved when the pole plate of commaterial has not only been made anode but also made negative electrode and had had short problem of easy burn into life-span, comprised that owing to the composition of garbage zymotic fluid grease, protein etc. cause the film pollution problems and there be to solve existence in the process of utilizing conventional electrodialysis to extract concentrating sodium lactate from garbage fermentation liquid.
Summary of the invention
For solve from garbage fermentation liquid extract and the traditional electrical dialysis method of concentrating sodium lactate in have the film pollution problems, the invention provides a kind of from garbage fermentation liquid the frequently pole-reversing electroosmosis method of extraction and concentrating sodium lactate.Method of the present invention has solved the deficiencies in the prior art, and it can reduce the pollution of film greatly, and it can control automatically, simple, the sodium lactate that can obtain high concentration.
The present invention extracts from garbage fermentation liquid and the frequently pole-reversing electroosmosis method of concentrating sodium lactate carries out according to the following steps: one, add the required solution that extracts sodium lactate: the garbage fermentation liquid of packing into and obtaining after lactic fermentation in the electrodialysis desalination jar, the electrode solution of packing in the electrode chamber in the lactate weak solution of packing in the electrodialysis concentration tank, electrodialysis plant; Two, attachment device is installed: a control output end of frequently pole-reversing circuit is connected first electrode of electrodialysis plant, another control output end of frequently pole-reversing circuit is connected second electrode of electrodialysis plant; Be connected with desalination jar and concentration tank respectively by first feed tube of the first two-position three way directional control valve electrodialysis plant, be connected with desalination jar and concentration tank respectively by second feed tube of the second two-position three way directional control valve electrodialysis plant, be connected with desalination jar and concentration tank respectively by first drain pipe of the 3rd two-position three way directional control valve, be connected with desalination jar and concentration tank respectively by second drain pipe of the 4th two-position three way directional control valve with electrodialysis plant with electrodialysis plant; Three, starting drive: earlier four two-position three way directional control valves are placed the initialization position, start electrodialysis plant and carry out the separation and Extraction sodium lactate, in electrodialytic process, the polarity of utilizing first electrode of frequently pole-reversing circuit switching electrodialysis plant and second electrode every 10～30 minutes once; Four, control valve: after electrode changes each time, all will regulate four two-position three way directional control valves and make it be operated in another operating position.Utilize said method can in concentration tank, obtain the concentrated lactic acid sodium solution.Employed frequently pole-reversing circuit is made up of two-way reversing switch and single chip machine controlling circuit in the said method, the signal controlling output of single chip machine controlling circuit connects the control end input of two-way reversing switch, two outputs of two-way reversing switch connect first electrode of electrodialysis plant and the input of second electrode respectively, and two inputs of two-way reversing switch connect the positive and negative electrode output of power supply respectively.The operating voltage of described electrodialysis plant (1) is 15～32 volts.
Operation principle: the present invention traditional electrodialysis plant with added a frequently pole-reversing circuit between power supply is connected; The characteristics of described frequently pole-reversing circuit are: put upside down the polarity of electrode of an electrodialysis plant every 10～30 minutes automatically, so that split away off attached to the foreign material on amberplex surface, avoid the pollution and the electrodialysis polarization of film; Above-mentioned traditional electrodialysis plant mainly comprises first electrode, second electrode, two feed tubes, two drain pipes, a plurality of anode membrane, a plurality of cavity block and dividing plates, as the described lactic acid electric dialyzator of ZL8710485.8 patent, it can be a membrane stack, also can be a plurality of membrane stacks, the logarithm of film is the amount doesn't matter in each membrane stack, the size of film is changeable, and these are all decided on the scale of producing and test; Its electrode institute making alive size, according to the logarithm of film in the membrane stack, the performance of film, the bridging mode of membrane stack and deciding; Above-mentioned each membrane stack has enriched chamber and two chambers of diluting compartment.Because the present invention uses the frequently pole-reversing circuit to make two electrodes of electrodialysis plant after putting upside down once in 10～30 minutes, so enriched chamber and diluting compartment in the electrodialysis plant were also put upside down once every 10～30 minutes, ion flow direction in the electrodialysis plant also exchanges once, shown in Fig. 3 and 4.In the process of ion break-in campaign, can change direction because of ion attached to the foreign material on cavity block and the anode membrane breaks away from film body automatically, thereby has avoided the pollution of film.As shown in Figure 3, when first electrode for just, second electrode is when negative, first feed tube and first drain pipe all are connected with concentration tank and respectively as the dope feed tube and the dope drain pipe of initial time, second feed tube and second drain pipe all are connected with desalination jar and respectively as the light liquid feed tube and the light liquid drain pipe of initial time, liquid in the concentration tank is in the A of enriched chamber, and desalination jar interior liquid is at diluting compartment B.After 10～30 minutes, first electrode is for negative, second electrode is for just, as shown in Figure 4, diluting compartment B and the A of enriched chamber have taken place to switch, for the liquid in the concentration tank is flowed in the enriched chamber all the time, desalination jar interior liquid flows in diluting compartment all the time, then need to utilize four additional two-position three way directional control valves that first feed tube and first drain pipe all are connected with the desalination jar, second feed tube and second drain pipe all are connected with concentration tank, and this moment, first feed tube and first drain pipe were then as light liquid feed tube and light liquid drain pipe, second feed tube and second drain pipe are then as dope feed tube and dope drain pipe.
The invention effect: the present invention adopts frequently pole-reversing electroosmosis to replace the common electrical dialysis, foreign material attached to the amberplex surface are split away off, reduced the pollution of film, prolonged the service life of film, provide cost savings, and high lactate recovering rate can reach more than 90%, and the lactate concentration after concentrating can reach more than 18%, can also be used for secondary electrodialysis (bipolar membrane electrodialysis) to obtain pure lactic acid.Extracting method of the present invention is equally applicable to the separation and Extraction of other weak organic acids, and this method has that cost is low, the technology characteristic of simple.
Description of drawings
Fig. 1 is a structural representation of the present invention, 1 for electrodialysis plant, 2 is that frequently pole-reversing circuit, 4 is to desalinate jar, 5 for concentration tank, 1-1 are that first electrode, 1-2 are that second electrode, 1-3 are that second drain pipe, 1-4 are that first drain pipe, 1-5 are that second feed tube, 1-6 are that first feed tube, 6-1 are that the first two-position three way directional control valve, 6-2 are that the second two-position three way directional control valve, 6-3 are the 3rd two-position three way directional control valve among the figure, and 6-4 is the 4th two-position three way directional control valve;
Fig. 2 is the circuit structure diagram of frequently pole-reversing circuit 2 of the present invention;
Fig. 3 be electrodialysis plant 1 the first electrode 1-1 for just, inside ion, the flow direction schematic diagram of the electrodialysis plant 1 of second electrode when negative, A is that enriched chamber, B are that diluting compartment, 1-7 are electrode chamber among the figure;
Fig. 4 is that the first electrode 1-1 of electrodialysis plant 1 is inside ion, the flow direction schematic diagram of the electrodialysis plant 1 of timing for negative, the second electrode 1-2.
The specific embodiment
The specific embodiment one: referring to Fig. 1 and Fig. 3, the method of this specific embodiment is carried out according to the following steps: one, add the required solution that extracts sodium lactate: the garbage fermentation liquid of packing into and obtaining after lactic fermentation in the electrodialysis desalination jar 4, the lactate weak solution of packing in the electrodialysis concentration tank 5, the electrode solution of packing in the electrode chamber 1-7 in the electrodialysis plant 1; Two, attachment device is installed: a control output end of frequently pole-reversing circuit 2 is connected the first electrode 1-1 of electrodialysis plant 1, and another control output end of frequently pole-reversing circuit 2 connects the second electrode 1-2 of electrodialysis plant 1; By the first two-position three way directional control valve 6-1 the first feed tube 1-6 of electrodialysis plant 1 is connected with desalination jar 4 and concentration tank 5 respectively, by the second two-position three way directional control valve 6-2 the second feed tube 1-5 of electrodialysis plant 1 is connected with desalination jar 4 and concentration tank 5 respectively, by the 3rd two-position three way directional control valve 6-3 the first drain pipe 1-4 of electrodialysis plant 1 is connected with desalination jar 4 and concentration tank 5 respectively, the second drain pipe 1-3 of electrodialysis plant 1 is connected with desalination jar 4 and concentration tank 5 respectively by the 4th two-position three way directional control valve 6-4; Three, starting drive: earlier four two-position three way directional control valves are placed the initialization position, start electrodialysis plant 1 and carry out the separation and Extraction sodium lactate, in electrodialytic process, the polarity of utilizing the first electrode 1-1 of frequently pole-reversing circuit 2 exchange electrodialysis plants 1 and the second electrode 1-2 every 10～30 minutes once; Four, control valve: after electrode changes each time, all will regulate four two-position three way directional control valves and make it be operated in another operating position.The initialization position of above-mentioned four two-position three way directional control valves is meant that the first feed tube 1-6 and the first drain pipe 1-4 are connected with concentration tank 5, and the second feed tube 1-5 and the second drain pipe 1-3 are connected with desalination jar 4, as shown in Figure 3; Another operating position of above-mentioned four two-position three way directional control valves is meant that the first feed tube 1-6 and the first drain pipe 1-4 are connected with desalination jar 4, and the second feed tube 1-5 and the second drain pipe 1-3 are connected with concentration tank 5, as shown in Figure 4; More than stated two operating positions of four used two-position three way directional control valves, after the polarity of two electrodes of electrodialysis plant 1 exchanged at set intervals, four used two-position three way directional control valves were also changed between above-mentioned two positions.The operating voltage of above-mentioned electrodialysis plant 1 is 15～32 volts.
Employed frequently pole-reversing circuit 2 is made up of two-way reversing switch 2-1 and single chip machine controlling circuit 2-2 in the said method, the signal controlling output of single chip machine controlling circuit 2-2 connects the control end input of two-way reversing switch 2-1, two outputs of two-way reversing switch 2-1 connect first electrode 1-1 of electrodialysis plant and the input of the second electrode 1-2 respectively, and two inputs of two-way reversing switch 2-1 connect the positive and negative electrode output of power supply 3 respectively.
The specific embodiment two: referring to Fig. 1, zymotic fluid is 1000 milliliters in the first step of this specific embodiment, and lactate solution is 200 milliliters, and electrode solution adopts dilute sulfuric acid; The 3rd step, the polarity of utilizing the first electrode 1-1 of frequently pole-reversing circuit 2 exchange electrodialysis plants 1 and the second electrode 1-2 every 15 minutes once finished after 12 hours, can obtain required concentrated lactic acid sodium solution at concentration tank in electrodialytic process.The step of other method is identical with the specific embodiment one with device.
The specific embodiment three: referring to Fig. 2, this specific embodiment with the difference of the specific embodiment two is: in frequently pole-reversing circuit 2, described change-over switch 2-1 adopts the electromagnetic relay 2-1-1 of double break, described single chip machine controlling circuit 2-2 is by single-chip microcomputer IC1, first capacitor C 1, second capacitor C 2, the 3rd capacitor C 3, the 4th capacitor C 4, crystal oscillator X1, triode T1, second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4 and dc source VCC form, the model that single-chip microcomputer IC1 adopts is AT89C2051,16 of single-chip microcomputer IC1,17,18,19 pin connect together, 16 pin of single-chip microcomputer IC1 are connected with the base stage of triode T1 by second resistance R 2, the grounded emitter of triode T1, the colelctor electrode of triode T1 connects the positive terminal of the magnet exciting coil of end of the 4th resistance R 4 and electromagnetic relay 2-1-1, the other end of the 4th resistance R 4 connects the output of dc source VCC, the negative pole end ground connection of the magnet exciting coil of electromagnetic relay 2-1-1, the common port of first group of transfer contact K1 of electromagnetic relay 2-1-1 connects the cathode output end of power supply 3, the common port of second group of transfer contact K2 of electromagnetic relay 2-1-1 connects the cathode output end of power supply 3, the normally opened contact of the power input of the second electrode 1-2 of the normally-closed contact connection electrodialysis plant 1 of first group of transfer contact K1 of electromagnetic relay 2-1-1 and second group of transfer contact K2 of electromagnetic relay 2-1-1, the power input of the normally-closed contact of second group of transfer contact K2 of the normally opened contact connection electromagnetic relay 2-1-1 of first group of transfer contact K1 of electromagnetic relay 2-1-1 and the first electrode 1-1 of electrodialysis plant 1,1 pin of single-chip microcomputer IC1 connects an end of second capacitor C 2 and an end of the 3rd resistance R 3, the other end of the 3rd resistance R 3 connects the output of dc source VCC, the other end ground connection of second capacitor C 2,4 pin of single-chip microcomputer IC1 connect an end of crystal oscillator X1 and the 3rd capacitor C 3, the other end of crystal oscillator X1 connects 5 pin of single-chip microcomputer IC1 and an end of the 4th capacitor C 4, the other end of the 3rd capacitor C 3,10 pin of the other end of the 4th capacitor C 4 and single-chip microcomputer IC1 are ground connection all, 20 pin of single-chip microcomputer IC1 connect the output of dc source VCC and an end of first capacitor C 1, the other end ground connection of first capacitor C 1.Other compositions are identical with the structure of device in the specific embodiment two with annexation.Store control electromagnetic relay 2-1-1 in this specific embodiment in the single-chip microcomputer IC1 every the closed assembler once of conversion in 15 minutes, it at first initialization 16 pin of single-chip microcomputer IC1 are made as high level, and timer 2 0ms interruption is set once, start timer conter then, when the timer conter meter is 15 minutes to 750 the time, at this moment the polarity exchange that the reverse level of 16 pin of single-chip microcomputer IC1, control electromagnetic relay 2-1-1 action make the first electrode 1-1 of electrodialysis plant 1 and the second electrode 1-2 once.
Claims (3)
1. from garbage fermentation liquid, extract and the frequently pole-reversing electroosmosis method of concentrating sodium lactate, it is characterized in that described frequently pole-reversing electroosmosis method carries out according to the following steps:
1., add the required solution that extracts sodium lactate: the garbage fermentation liquid of packing into and after lactic fermentation, obtaining in the electrodialysis desalination jar (4), the electrode solution of packing in the electrode chamber (1-7) in the lactate weak solution of packing in the electrodialysis concentration tank (5), electrodialysis plant (1);
2., attachment device is installed: a control output end of frequently pole-reversing circuit (2) is connected first electrode (1-1) of electrodialysis plant (1), and another control output end of frequently pole-reversing circuit (2) connects second electrode (1-2) of electrodialysis plant (1); Be connected with desalination jar (4) and concentration tank (5) respectively by first feed tube (1-6) of the first two-position three way directional control valve (6-1) electrodialysis plant (1), be connected with desalination jar (4) and concentration tank (5) respectively by second feed tube (1-5) of the second two-position three way directional control valve (6-2) electrodialysis plant (1), be connected with desalination jar (4) and concentration tank (5) respectively by first drain pipe (1-4) of the 3rd two-position three way directional control valve (6-3), be connected with desalination jar (4) and concentration tank (5) respectively by second drain pipe (1-3) of the 4th two-position three way directional control valve (6-4) with electrodialysis plant (1) with electrodialysis plant (1);
3., starting drive: earlier four two-position three way directional control valves are placed the initialization position, start electrodialysis plant (1) and carry out the separation and Extraction sodium lactate, in electrodialytic process, the polarity of utilizing first electrode (1-1) of frequently pole-reversing circuit (2) exchange electrodialysis plant (1) and second electrode (1-2) every 10～30 minutes once, the initialization position of described four two-position three way directional control valves is meant that first feed tube (1-6) and first drain pipe (1-4) all are connected with concentration tank (5), and second feed tube (1-5) and second drain pipe (1-3) all are connected with desalination jar (4);
4., control valve: after electrode changes each time, all will regulate four two-position three way directional control valves makes it be operated in another operating position, another operating position of described four two-position three way directional control valves is meant that first feed tube (1-6) and first drain pipe (1-4) all are connected with desalination jar (4), and second feed tube (1-5) and second drain pipe (1-3) all are connected with concentration tank (5);
The operating voltage of described electrodialysis plant (1) is 15～32 volts.
2. according to claim 1 from garbage fermentation liquid, the extraction and the frequently pole-reversing electroosmosis method of concentrating sodium lactate, it is characterized in that described frequently pole-reversing circuit (2) is made up of two-way reversing switch (2-1) and single chip machine controlling circuit (2-2), the signal controlling output of single chip machine controlling circuit (2-2) connects the control end input of two-way reversing switch (2-1), two outputs of two-way reversing switch (2-1) connect first electrode (1-1) of described electrodialysis plant (1) and the input of second electrode (1-2) respectively, and two inputs of two-way reversing switch (2-1) are just connecting power supply (3) respectively, cathode output end.
3. according to claim 2 from garbage fermentation liquid, the extraction and the frequently pole-reversing electroosmosis method of concentrating sodium lactate, it is characterized in that described change-over switch (2-1) adopts the electromagnetic relay (2-1-1) of double break, described single chip machine controlling circuit (2-2) is by single-chip microcomputer (IC1), first electric capacity (C1), second electric capacity (C2), the 3rd electric capacity (C3), the 4th electric capacity (C4), crystal oscillator (X1), triode (T1), second resistance (R2), the 3rd resistance (R3), the 4th resistance (R4) and dc source (VCC) are formed, the model that single-chip microcomputer (IC1) adopts is AT89C2051,16 of single-chip microcomputer (IC1), 17,18,19 pin connect together, 16 pin of single-chip microcomputer (IC1) are connected with the base stage of triode (T1) by second resistance (R2), the grounded emitter of triode (T1), the colelctor electrode of triode (T1) connects the positive terminal of the magnet exciting coil of end of the 4th resistance (R4) and electromagnetic relay (2-1-1), the other end of the 4th resistance (R4) connects the output of dc source (VCC), the negative pole end ground connection of the magnet exciting coil of electromagnetic relay (2-1-1), the common port of first group of transfer contact (K1) of electromagnetic relay (2-1-1) connects the cathode output end of power supply (3), the common port of second group of transfer contact (K2) of electromagnetic relay (2-1-1) connects the cathode output end of power supply (3), the normally opened contact of the power input of second electrode (1-2) of the normally-closed contact connection electrodialysis plant (1) of first group of transfer contact (K1) of electromagnetic relay (2-1-1) and second group of transfer contact (K2) of electromagnetic relay (2-1-1), the power input of the normally-closed contact of second group of transfer contact (K2) of the normally opened contact connection electromagnetic relay (2-1-1) of first group of transfer contact (K1) of electromagnetic relay (2-1-1) and first electrode (1-1) of electrodialysis plant (1), 1 pin of single-chip microcomputer (IC1) connects an end of second electric capacity (C2) and an end of the 3rd resistance (R3), the other end of the 3rd resistance (R3) connects the output of dc source (VCC), the other end ground connection of second electric capacity (C2), 4 pin of single-chip microcomputer (IC1) connect an end of crystal oscillator (X1) and the 3rd electric capacity (C3), the other end of crystal oscillator (X1) connects 5 pin of single-chip microcomputer (IC1) and an end of the 4th electric capacity (C4), the other end of the 3rd electric capacity (C3), 10 pin of the other end of the 4th electric capacity (C4) and single-chip microcomputer (IC1) are ground connection all, 20 pin of single-chip microcomputer (IC1) connect the output of dc source (VCC) and an end of first electric capacity (C1), the other end ground connection of first electric capacity (C1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610009657XA CN100409926C (en) | 2006-01-23 | 2006-01-23 | Frequently pole-reversing electroosmosis method for extracting and concentrating sodium lactate from garbage fermentation liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610009657XA CN100409926C (en) | 2006-01-23 | 2006-01-23 | Frequently pole-reversing electroosmosis method for extracting and concentrating sodium lactate from garbage fermentation liquid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1820828A CN1820828A (en) | 2006-08-23 |
| CN100409926C true CN100409926C (en) | 2008-08-13 |
Family
ID=36922495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200610009657XA Expired - Fee Related CN100409926C (en) | 2006-01-23 | 2006-01-23 | Frequently pole-reversing electroosmosis method for extracting and concentrating sodium lactate from garbage fermentation liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100409926C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101823953B (en) * | 2010-03-31 | 2012-11-28 | 北京科技大学 | Method for separating lactic acid from fermentation liquor by flocculation and carrying out flocculate comprehensive utilization |
| CN104867650B (en) * | 2014-12-03 | 2017-09-19 | 佛山市艾乐博机器人科技有限公司 | A kind of manipulator demagnetization module |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1031112A (en) * | 1987-07-11 | 1989-02-15 | 南京大学 | Lactic acid electrodialysis extraction process and equipment |
| CN2073771U (en) * | 1990-07-19 | 1991-03-27 | 北京市西山孵化设备厂 | Concentrated water circulation automatic pole-reversing equipment of electric dialyzator |
-
2006
- 2006-01-23 CN CNB200610009657XA patent/CN100409926C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1031112A (en) * | 1987-07-11 | 1989-02-15 | 南京大学 | Lactic acid electrodialysis extraction process and equipment |
| CN2073771U (en) * | 1990-07-19 | 1991-03-27 | 北京市西山孵化设备厂 | Concentrated water circulation automatic pole-reversing equipment of electric dialyzator |
Non-Patent Citations (2)
| Title |
|---|
| 电渗析法回收厨房垃圾发酵液中的乳酸. 汪群慧等.哈尔滨工业大学学报，第37卷第3期. 2005 |
| 电渗析法回收厨房垃圾发酵液中的乳酸. 汪群慧等.哈尔滨工业大学学报，第37卷第3期. 2005 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1820828A (en) | 2006-08-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zhou et al. | Electrodialytic concentrating lithium salt from primary resource | |
| CN113913844B (en) | Power switching-based membrane-free water electrolysis hydrogen production device | |
| CN204735119U (en) | Bipolar membrane electrodialysis device | |
| CN102795686A (en) | Device for seawater desalination based on solar energy heat collection | |
| CN100409926C (en) | Frequently pole-reversing electroosmosis method for extracting and concentrating sodium lactate from garbage fermentation liquid | |
| CN109692575B (en) | Double-chamber membrane capacitance deionization device | |
| CN109134317B (en) | Method for preparing L-10-camphorsulfonic acid by bipolar membrane electrodialysis | |
| CN201148367Y (en) | Electric softening installation | |
| CN109096230A (en) | One kind preparing ascorbic method by bipolar membrane electrodialysis | |
| CN203507829U (en) | Dielectrophoresis forward-osmosis flat permeable membrane assembly | |
| CN212581571U (en) | Electrolytic bath | |
| CN220149336U (en) | Multistage concentration desalination device | |
| CN212222679U (en) | Wastewater recycling treatment system based on flow electrode | |
| CN104593809B (en) | A kind of method of biological electrodialytic technique production citric acid | |
| CN210656555U (en) | Brackish water treatment facilities based on electrosorption technology | |
| CN209438393U (en) | One kind recycling electric dialyzator electrical energy devices based on flow battery technology | |
| CN1215034C (en) | Process for on-line extracting and concentrating organic acid in organic acid fermentation | |
| CN101817576A (en) | Seawater electrofiltration desalting method and device | |
| CN101244345B (en) | Water-based solution ion fractionation device | |
| CN204281390U (en) | A kind of wastewater efficient treatment unit | |
| CN111762849A (en) | Method and device for reducing energy consumption of electrochemical water treatment | |
| CN202576057U (en) | Seawater electro-filtration desalting device | |
| CN103463985A (en) | Osmosis membrane assembly for dielectrophoresis forward-osmosis flat plate | |
| CN2663404Y (en) | Multi polar plate electrodialysis water purifier | |
| CN216129360U (en) | Electrodialysis device of cosmetics high salt waste water is handled to intelligence |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080813 Termination date: 20120123 |