CN105063108B - A kind of intensifying method of biology electrodialysis production malic acid - Google Patents

A kind of intensifying method of biology electrodialysis production malic acid Download PDF

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CN105063108B
CN105063108B CN201510456356.0A CN201510456356A CN105063108B CN 105063108 B CN105063108 B CN 105063108B CN 201510456356 A CN201510456356 A CN 201510456356A CN 105063108 B CN105063108 B CN 105063108B
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malic acid
electrodialysis
biology
chamber
acid
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CN105063108A (en
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刘广立
杨昆鹏
卢霄
骆海萍
张仁铎
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Sun Yat Sen University
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Abstract

The present invention relates to a kind of intensifying methods of biological electrodialytic technique production malic acid, belong to electrodialysis field, biological electrodialysis energy consumption can be further decreased, reduces internal resistance, improve current density by adding ion exchange resin using the continuous flow biology electrodialysis after improvement.

Description

A kind of intensifying method of biology electrodialysis production malic acid
Technical field
It the invention belongs to biological electrodialysis field, is further improved on the existing electrodialytic Research foundation of biology Continuous flow biology electrodialysis, by addition ion exchange resin, further research reduction energy consumption, reduction internal resistance, raising electric current are close The method of degree.
Background technique
Bioelectrochemical system is that a kind of biocatalyst i.e. microorganism carries out oxidation or reduction reaction on the electrode Electro-chemical systems.Microorganism in this bioelectrochemical system carries out new old generation under the stimulation of bioelectricity reactor It thanks, pollutant is handled with lower consumption in such a process, or carry out the electricity production of itself using pollutant as raw material.
Biological electrodialysis is a kind of novel bioelectrochemistry technology, microorganism is combined with electrodialytic technique, with this Obtain the purpose that the production acid under low energy consumption produces alkali desalination.Microorganism produces electricity under the action of extra electric field, after electricity production with outside Added electric field collective effect makes ion displacement in the electric field, so that all kinds of ion isolations in dope are produced acid production to reach The purpose of alkali desalination.
Biological electrodialytic technique will make up that electrodialysis energy consumption is excessive, and the defect of biological production not enough power supply, it can pass through It tames and is suitble to the microorganism of electrodialysis electric field to reduce energy consumption, improve coulombic efficiency, simultaneous hydrogen production gas, processing industrial chemical are useless Water produces acid production alkali desalination, and consumes organic matter.
The industrial innovation with the development of science and technology of the preparation method of L MALIC ACID experienced and original press from fruit Squeeze the industrialized production stage.Currently, the production method of L MALIC ACID is developed via the single extraction method of early stage including mentioning Follow the example of production, chemical synthesis the preparation method, two-step fermentation and the solidification techniques such as enzyme or cell conversion process.From above four kinds From the point of view of the preparation method of L MALIC ACID, the current methodology of malic acid all has its limitation, and conversion method and fermentation method are more suitable In industrial development, product more abundant can be generated on the basis of safety, low cost.But it will be recognized that be such Technique has that product is impure, type of acid-producing bacteria strain needs to be optimized culture, therefore finds a kind of safer Effectively, the technique of the production malic acid of low energy is very necessary and great realistic meaning and value.
The present invention on the existing electrodialytic Research foundation of biology, is carried out continuous using L MALIC ACID as research object The electrodialytic research of stream biology proposes high acid amount, and studies the electrodialytic critical operational parameters of continuous flow biology, passes through The method that high yield production L MALIC ACID on the basis of reducing energy consumption is found in the research of these service conditions.
Summary of the invention
The purpose of the present invention is by the way that the electrodialytic improvement of continuous flow biology, acquisition, which further decreases internal resistance, reduces biology The method of electrodialysis energy consumption, while in the research process to the biological electrodialysis service condition of improvement, find raising bioelectricity The method of dialysis current density, to obtain high yield, low consumption, the continuous flow biology electrodialytic technique of high current density and its fortune Row relevant parameter and improving technology.
Continuous flow biology electrodialysis plant is the reaction being connected in insulating box by the peristaltic pump and pipeline of multichannel Device, so that the liquid in reactor flows.Reactor is that a kind of microorganism electrochemical system is mutually tied with bipolar membrane electrodialysis Close novel system.While desalination, produces acid and produce alkali.It is altogether there are four reaction chamber, respectively anode chamber, acid from left to right Room, desalting chamber and cathode chamber, since desalting chamber is in the centre of reactor, also known as middle room.Its volume ratio is 4: 1: 1 :2.It is spaced from each other between four Room with film, is Bipolar Membrane between anode chamber and acid compartment, is handed between acid compartment and desalting chamber for anion Film is changed, is cation-exchange membrane between desalting chamber and cathode chamber.In anode and cathode both ends external dc power supply, and connect with 10 ohm Resistance.Anode material is carbon brush, and cathode material uses three layers of rolling activated carbon cathode.Therefore in anode to cathode reactor The external circuit formed by electron transmission by ion transport of portion's composition one.Hydrogen ion H is generated respectively in the two sides of Bipolar Membrane+ With hydroxide ion OH-, acid is formed in acid compartment and generates alkali in the cathodic compartment, therefore cathode chamber is also referred to as alkaline chamber.
Anode is located in anode chamber, and the anode of reaction system is made of the carbon brush for being attached with electricity-producing microorganism, and cathode uses Carbon black, active carbon and ethyl alcohol production, yin-yang grade spacing is between 4-8 cm.
A kind of the advantages of intensifying method of biological electrodialysis production malic acid provided by the present invention, is: (1) common The transformation of continuous flow is carried out on the basis of biological electrodialysis system, so that producing acid amount improves energy consumption decline, improves biological electric osmose The operational efficiency and effect of analysis.(2) it is further improved on the basis of continuous flow biology electrodialysis system, passes through addition The method of ion exchange resin declines the internal resistance of continuous flow biology electrodialysis system, and energy consumption is further decreased, further mentioned High biological electrodialytic operational efficiency and effect.
Detailed description of the invention
Attached drawing 1 is intermittent biological electrodialysis system schematic diagram.
Attached drawing 2 is continuous flow-recycle stream dynamic formula bioelectricity electrodialysis system schematic diagram.
Attached drawing 3 is continuous flow-uniflow type biology electrodialysis system schematic diagram.
Attached drawing 4 is that continuous flow and common batch biology electrodialysis system produce electricity curve comparison schematic diagram.
Attached drawing 5 is that continuous flow and common batch biology electrodialysis system produce acid amount contrast schematic diagram.
Attached drawing 6 is continuous flow and common batch biology electrodialysis system energy consumption comparison schematic diagram.
Attached drawing 7 is production under different hydraulic detention times after continuous flow biology electrodialysis system addition ion exchange resin Acid concentration contrast schematic diagram.
Attached drawing 8 is energy under different hydraulic detention times after continuous flow biology electrodialysis system addition ion exchange resin Consume contrast schematic diagram.
Attached drawing 9 is that production acid under different applied voltages is dense after continuous flow biology electrodialysis system addition ion exchange resin Spend contrast schematic diagram.
Attached drawing 10 is energy consumption under different applied voltages after continuous flow biology electrodialysis system addition ion exchange resin Contrast schematic diagram.
Specific embodiment
As shown in Figure 1, 2, 3, continuous flow biology electrodialysis plant is connected to by the peristaltic pump and pipeline of multichannel Reactor in insulating box, so that the liquid in reactor flows.Pipeline etc. is connected to wriggling under discontinuous state Pump makes continuous flow biology electrodialysis stable operation until the plateau that reactor reaches discontinuous operation opens peristaltic pump, Its cycle of operation is set as 24 hours.In the operational process of continuous flow, the continuous flow operational mode of four reaction chambers is different, Middle-jiao yang, function of the spleen and stomach pole room is by the way of one-way flow, and its excess-three room is by the way of circulating.Wherein anode chamber's feed liquor is matrix, The L MALIC ACID solution that acid compartment circulation fluid is the 0.04mol/L that total volume is 100mL, it is 250mL that middle room circulation fluid, which is total volume, 0.3mol/L L MALIC ACID potassium solution, the circulation fluid of alkaline chamber is the sodium chloride solution for the lmol/L that total volume is 100mL.
Using a kind of intensifying method of biological electrodialysis production malic acid of the invention, continuous flow biology electrodialysis is compared In common batch biology electrodialysis, the acid production rate of malic acid is doubled, and is increased to 0.203mol/L from 0.108mol/L, Energy consumption drops to original 80%, is a kind of more optimal biological electrodialysis continuous-flow system.
The optimum operation hydraulic detention time of continuous flow biology electrodialysis system is 12 hours, is run under this service condition Effect is best, and production malic acid concentration is 0.203mol/L, energy consumption 1.0kWh/kg.
It is a kind of more superior continuous flow biology electrodialysis that continuous flow, which adds ion exchange resin biology electrodialysis system, System is successful improvement project, and compared to general continuous flow biology electrodialysis system, reactor internal resistance reduces half, from 260 Ω are reduced to 140 Ω, produce acid amount and improve by about one time;It is dropped to compared to common biological electrodialysis system energy consumption original 16.7%.
Continuous flow adds the applied voltage that the optimum operating condition of ion exchange resin biology electrodialysis system is 1V, and 12 is small When hydraulic detention time, operational effect is best under this service condition, and energy consumption is only 0.183kWh/kg.

Claims (6)

1. a kind of intensifying method of biology electrodialysis production malic acid, which is characterized in that the system is improvement continuous flow bioelectricity Dialysis, specific as follows: including anode chamber, acid compartment, desalting chamber and alkaline chamber, the continuous flow operational mode of four reaction chambers is different, Middle-jiao yang, function of the spleen and stomach pole room is by the way of one-way flow, and its excess-three room is by the way of circulating;Cation exchange is added in acid compartment Resin adds anion exchange resin in alkaline chamber, and chamber volume ratio and addition ion exchange resin volume ratio are 1: 1, acid Room circulation fluid is L MALIC ACID solution, and middle room circulation fluid is L MALIC ACID potassium solution, and the circulation fluid of alkaline chamber is sodium chloride solution;Into The method that one step reduces energy consumption, reduces internal resistance, improves current density.
2. the method according to claim 1, wherein for recycling malic acid from the waste water containing potassium malate.
3. according to claim 1, which is characterized in that control anode chamber's feed liquor is matrix, and acid compartment circulation fluid is 0.04mol/L's L MALIC ACID solution, middle room circulation fluid are the L MALIC ACID potassium solution of 0.1-0.5mol/L, and the circulation fluid of alkaline chamber is 1mol/L's Sodium chloride solution.
4. according to claim 1, which is characterized in that system internal resistance can be reduced, after ion exchange resin is added, system internal resistance is 120-160 ohm.
5. according to claim 1, which is characterized in that the hydraulic detention time of system operation is 9-15h, produces malic acid concentration and is 0.05-0.12mol/L, the energy consumption for producing malic acid is 0.18-0.34kWh/kg.
6. according to claim 1, which is characterized in that for system under 1.0-1.4V applied voltage, production malic acid concentration is 0.06- 0.12mol/L, the energy consumption for producing malic acid is 0.18-0.41kWh/kg.
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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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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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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)

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"Malic acid production using a biological electrodialysis with bipolar membrane";Guangli Liu等;《Journal of Membrane Science》;20141231(第471期);摘要,材料和方法
"双极膜电渗析从发酵废液回收柠檬酸";董恒等;《第四届中国膜科学与技术报告会论文集》;20110614;摘要,第1页左栏第1段-右栏第1段,1实验部分

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