CN105063108A - Enhancing method for producing malic acid through biological electrodialysis - Google Patents
Enhancing method for producing malic acid through biological electrodialysis Download PDFInfo
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- CN105063108A CN105063108A CN201510456356.0A CN201510456356A CN105063108A CN 105063108 A CN105063108 A CN 105063108A CN 201510456356 A CN201510456356 A CN 201510456356A CN 105063108 A CN105063108 A CN 105063108A
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Abstract
The invention relates to an enhancing method for producing malic acid through biological electrodialysis and belongs to the field of electrodialysis. According to the invention, by using improved continuous flow biological electrodialysis and adding ion exchange resin, biological electrodialysis energy consumption is reduced further, internal resistance is reduced and current density is increased.
Description
Technical field
The invention belongs to bioelectricity dialysis field, is on the electrodialytic Research foundation of existing biology, improvement Continuous Flow bioelectricity dialysis further, by adding ion exchange resin, studies the method reducing energy consumption, reduce internal resistance, improve current density further.
Background technology
Bioelectrochemical system is that a kind of biological catalyst and microorganism carry out being oxidized or the electro-chemical systems of reduction reaction on electrode.Microorganism in this bioelectrochemical system carries out metabolism under the hormesis of bioelectricity reactor, in such a process with lower consumption process pollutent, or is the electrogenesis that raw material carries out self with pollutent.
Bioelectricity dialysis is that a kind of novel bioelectrochemical learns a skill, and is combined by microorganism with electrodialytic technique, and the object of alkali desalination is produced in the product acid obtained under less energy-consumption with this.Microorganism is electrogenesis under the effect of extra electric field, after electrogenesis, make ion displacement in the electric field with extra electric field acting in conjunction, thus by all kinds of ion isolation in dope, produces to reach the object that alkali desalination is produced in acid.
It is excessive that bioelectricity osmotic technique will make up electrodialysis power consumption, and the defect of bio electricity deficiency, it can reduce energy consumption by the microorganism taming applicable electrodialysis electric field, improve coulombic efficiency, simultaneous hydrogen production gas, process industrial chemical waste water, product acid produce alkali desalination, and consume organism.
The preparation method of L MALIC ACID, along with the innovation of the developing industry of science and technology, experienced by and original from fruit, squeezes the suitability for industrialized production stage.At present, the production method of L MALIC ACID has been developed by early stage single extraction method and has comprised extraction method production, chemical synthesis preparation method, two-step fermentation and the technique such as harden monitoring or cell conversion process.From the preparation method of the L MALIC ACID of above four kinds, the current methodology of oxysuccinic acid all has its limitation, and conversion method and fermentation method are more suitable for industrial development, can produce the product compared with horn of plenty on the basis of safety, low cost.But what have to admit is that such technique exists that product is impure, the kind of acid-producing bacteria strain needs to be optimized the problem of cultivation, therefore find a kind of safer effectively, the technique of the product oxysuccinic acid of low energy is very necessary and has realistic meaning and value.
The present invention take L MALIC ACID as research object, on the electrodialytic Research foundation of existing biology, carry out the biological electrodialytic research of Continuous Flow and put forward high acid amount, and the biological electrodialytic critical operational parameters of Continuous Flow is studied, find high yield on the basis reducing energy consumption to produce the method for L MALIC ACID by the research of these operational conditionss.。
Summary of the invention
The object of the invention is by the biological electrodialytic improvement of Continuous Flow, obtain and reduce the method that internal resistance reduces bioelectricity dialysis energy consumption further, simultaneously in the research process of the bioelectricity dialysis operational conditions to improvement, find the method improving bioelectricity dialysis current density, thus obtain high yield, low consumption, high current density Continuous Flow bioelectricity osmotic technique and run correlation parameter and improving technology.
Continuous Flow bioelectricity electrodialysis apparatus is the reactor be connected to by multichannel peristaltic pump and pipeline in thermostat container, makes the liquid-flow in reactor.Reactor is that a kind of microorganism electrochemical system combines with bipolar membrane electrodialysis novel system.While desalination, produce acid and produce alkali.It one has four reaction chambers, is respectively anolyte compartment, sour room, desalting chamber and cathode compartment from left to right, because desalting chamber is in the centre of reactor, is therefore also called middle room.Its volume ratio is 4: 1: 1: 2.Be spaced from each other with film between four Room, be Bipolar Membrane between anolyte compartment and sour room, is anion-exchange membrane between sour room and desalting chamber, is cationic exchange membrane between desalting chamber and cathode compartment.At anode and cathode two ends external dc power supply, parallel-series is with the resistance of 10 ohm.Anode material is carbon brush, and cathode material adopts three layers of roll extrusion activated carbon cathode.Therefore a loop that outside is formed by electron transmission by ion transport is formed at anode to negative electrode inside reactor.Hydrogen ion H is produced respectively in the both sides of Bipolar Membrane
+with hydroxide ion OH
-, in sour room, form acid and produce alkali in the cathodic compartment, therefore cathode compartment is also referred to as alkali room.
Anode is positioned at anolyte compartment, and the anode of reaction system is made up of the carbon brush being attached with electrogenesis microorganism, and negative electrode adopts carbon black, gac and ethanol to make, and negative and positive level spacing between 4-8 cm.
The advantage that the enhancement method of oxysuccinic acid is produced in a kind of bioelectricity dialysis provided by the present invention is: (1) carries out the transformation of Continuous Flow on the basis of common biological electrodialysis system, make to produce acid amount and improve energy consumption decline, improve biological electrodialytic operational efficiency and effect.(2) further improve on the basis of Continuous Flow bioelectricity electrodialysis system, by the method for adding ion exchange resin, the internal resistance of Continuous Flow bioelectricity electrodialysis system is declined, energy consumption reduces further, improves biological electrodialytic operational efficiency and effect further.
Accompanying drawing explanation
Accompanying drawing 1 is intermittent type bioelectricity electrodialysis system schematic diagram.
Accompanying drawing 2 is Continuous Flow-cycling stream dynamic formula bioelectricity electrodialysis system schematic diagram.
Accompanying drawing 3 is Continuous Flow-uniflow type bioelectricity electrodialysis system schematic diagram.
Accompanying drawing 4 is Continuous Flow and common batch bioelectricity electrodialysis system electrogenesis curve comparison schematic diagram.
Accompanying drawing 5 is that Continuous Flow and common batch bioelectricity electrodialysis system produce acid and measure and contrast schematic diagram.
Accompanying drawing 6 is Continuous Flow and common batch bioelectricity electrodialysis system energy consumption comparison schematic diagram.
Accompanying drawing 7 is that the product acid concentration after Continuous Flow bioelectricity electrodialysis system adds ion exchange resin under different hydraulic detention time contrasts schematic diagram.
Accompanying drawing 8 is the energy consumption comparison schematic diagram after Continuous Flow bioelectricity electrodialysis system interpolation ion exchange resin under different hydraulic detention time.
Accompanying drawing 9 is that the product acid concentration after Continuous Flow bioelectricity electrodialysis system adds ion exchange resin under different impressed voltage contrasts schematic diagram.
Accompanying drawing 10 is the energy consumption comparison schematic diagram after Continuous Flow bioelectricity electrodialysis system interpolation ion exchange resin under different impressed voltage.
Embodiment
As shown in Figure 1, 2, 3, Continuous Flow bioelectricity electrodialysis apparatus is the reactor be connected to by multichannel peristaltic pump and pipeline in thermostat container, makes the liquid-flow in reactor.Under discontinuous state, pipeline etc. is connected to peristaltic pump, until the plateau that reactor reaches discontinuous operation opens peristaltic pump, make Continuous Flow bioelectricity dialysis steady running, its cycle of operation is set to 24 hours.In the operational process of Continuous Flow, the Continuous Flow operational mode of four reaction chambers is different, and wherein anolyte compartment adopts the mode of uniflux, and its excess-three room adopts the mode circulated.Wherein anolyte compartment's feed liquor is matrix, the L MALIC ACID solution of acid room circulation fluid to be cumulative volume the be 0.04mol/L of 100mL, the L MALIC ACID potassium solution of middle room circulation fluid to be cumulative volume the be 0.3mol/L of 250mL, the sodium chloride solution of the circulation fluid of alkali room to be cumulative volume the be lmol/L of 100mL.
A kind of bioelectricity dialysis of the present invention is utilized to produce the enhancement method of oxysuccinic acid, its Continuous Flow bioelectricity dialysis is compared to the dialysis of common batch bioelectricity, the acid production rate of oxysuccinic acid is doubled, 0.203mol/L is brought up to from 0.108mol/L, energy consumption drops to original 80%, is a kind of more optimal bioelectricity dialysis continuous-flow system.
The optimum operation hydraulic detention time of Continuous Flow bioelectricity electrodialysis system is 12 hours, and under this operational conditions, operating performance is best, and product malic acid concentration is 0.203mol/L, and energy consumption is 1.0kWh/kg.
It is a kind of more superior Continuous Flow bioelectricity electrodialysis system that Continuous Flow adds ion exchange resin bioelectricity electrodialysis system, be successful improvement project, compared to general Continuous Flow bioelectricity electrodialysis system, reactor internal resistance reduces half, be reduced to 140 Ω from 260 Ω, produce acid amount and improve nearly one times; Original 16.7% is dropped to compared to common bioelectricity electrodialysis system energy consumption.
The optimum operating condition that Continuous Flow adds ion exchange resin bioelectricity electrodialysis system is the impressed voltage of 1V, the hydraulic detention time of 12 hours, and under this operational conditions, operating performance is best, and energy consumption is only 0.183kWh/kg.
Claims (8)
1. the enhancement method of a bioelectricity dialysis production oxysuccinic acid, this system features is on the electrodialytic Research foundation of existing biology, the dialysis of further improvement Continuous Flow bioelectricity, by adding ion exchange resin, the method reducing energy consumption further, reduce internal resistance, improve current density.
2. method according to claim 1, is characterized in that, for reclaiming oxysuccinic acid from containing in the waste water of potassium malate.
3. method according to claim 1, is characterized in that, in the operational process of Continuous Flow, the Continuous Flow operational mode of four reaction chambers is different, and wherein anolyte compartment adopts the mode of uniflux, and its excess-three room adopts the mode circulated.
4. method according to claim 1, is characterized in that, adds Zeo-karb in sour room, and alkali adds anionite-exchange resin in room, and chamber volume is 1: 1 than with interpolation ion exchange resin volume ratio.
5. according to claim 3, the feature of the method is that controlling anolyte compartment's feed liquor is matrix, acid room circulation fluid is the L MALIC ACID solution of 0.04mol/L, and middle room circulation fluid is the L MALIC ACID potassium solution of 0.1-0.5mol/L, and the circulation fluid of alkali room is the sodium chloride solution of 1mol/L.
6. according to claim 4, the feature of the method is to reduce system internal resistance, and after adding ion exchange resin, system internal resistance is 120-160 ohm.
7. according to claim 4, the feature of the method is that the hydraulic detention time of system cloud gray model is 9-15h, and product malic acid concentration is 0.05-0.12mol/L, and the energy consumption of producing oxysuccinic acid is 0.18-0.34kWh/kg.
8. according to claim 4, the feature of the method is that system is under 1.0-1.4V impressed voltage, and product malic acid concentration is 0.06-0.12mol/L, and the energy consumption of producing oxysuccinic acid is 0.18-0.41kWh/kg.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105483165A (en) * | 2016-01-19 | 2016-04-13 | 安徽雪郎生物科技股份有限公司 | Preparation method of L-malic acid |
| CN106145312A (en) * | 2016-07-20 | 2016-11-23 | 中山大学 | The processing method of reverse osmosis concentrated water in a kind of municipal wastewater treatment plant effluent reuse |
| CN110937679A (en) * | 2019-10-30 | 2020-03-31 | 同济大学 | System and method for producing hydrogen by recovering nitrogen and phosphorus in sewage through bioelectrochemistry and synchronously fixing carbon |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101234961A (en) * | 2008-03-04 | 2008-08-06 | 江苏道森生物化学有限公司 | Method for preparing lactic acid by applying double pole film electrodialysis technique |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101234961A (en) * | 2008-03-04 | 2008-08-06 | 江苏道森生物化学有限公司 | Method for preparing lactic acid by applying double pole film electrodialysis technique |
Non-Patent Citations (2)
| Title |
|---|
| GUANGLI LIU等: ""Malic acid production using a biological electrodialysis with bipolar membrane"", 《JOURNAL OF MEMBRANE SCIENCE》 * |
| 董恒等: ""双极膜电渗析从发酵废液回收柠檬酸"", 《第四届中国膜科学与技术报告会论文集》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105483165A (en) * | 2016-01-19 | 2016-04-13 | 安徽雪郎生物科技股份有限公司 | Preparation method of L-malic acid |
| CN105483165B (en) * | 2016-01-19 | 2020-09-04 | 安徽雪郎生物科技股份有限公司 | Preparation method of L-malic acid |
| CN106145312A (en) * | 2016-07-20 | 2016-11-23 | 中山大学 | The processing method of reverse osmosis concentrated water in a kind of municipal wastewater treatment plant effluent reuse |
| CN110937679A (en) * | 2019-10-30 | 2020-03-31 | 同济大学 | System and method for producing hydrogen by recovering nitrogen and phosphorus in sewage through bioelectrochemistry and synchronously fixing carbon |
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