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Enhancing method for producing malic acid through biological electrodialysis

A technology of bioelectrodialysis and malic acid, which is applied in the field of bioelectrodialysis, can solve the problems of product impurity and low energy, and achieve the effects of improving operating efficiency and effect, reducing energy consumption, and reducing energy consumption

Active Publication Date: 2015-11-18
SUN YAT SEN UNIV
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Problems solved by technology

However, it has to be admitted that such a process has the problems of impure products and the types of acid-producing strains need to be further optimized for cultivation. Therefore, it is very necessary and of great practical significance to find a safer, more effective and low-energy malic acid-producing process. and valued

Method used

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  • Enhancing method for producing malic acid through biological electrodialysis
  • Enhancing method for producing malic acid through biological electrodialysis
  • Enhancing method for producing malic acid through biological electrodialysis

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Embodiment Construction

[0021] Such as figure 1 , 2 As shown in , 3, the continuous flow bioelectrodialysis device is connected to the reactor in the constant temperature box through a multi-channel peristaltic pump and pipelines, so that the liquid in the reactor flows. Connect the pipeline to the peristaltic pump in the discontinuous state, and turn on the peristaltic pump when the reactor reaches the plateau of discontinuous operation, so that the continuous flow bioelectrodialysis can run stably, and its operation cycle is set to 24 hours. During the operation of continuous flow, the continuous flow operation modes of the four reaction chambers are different, in which the anode chamber adopts the unidirectional flow mode, while the remaining three chambers adopt the circulation flow mode. The anode chamber feed liquid is the matrix, the acid chamber circulation fluid is 0.04mol / L L-malic acid solution with a total volume of 100mL, and the middle chamber circulation fluid is 0.3mol / L potassium L-...

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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 [0001] The present invention belongs to the field of bioelectrodialysis, and is based on the existing bioelectrodialysis research, further improves continuous flow bioelectrodialysis, and further researches on reducing energy consumption, reducing internal resistance, and increasing current density by adding ion exchange resins. method. Background technique [0002] A bioelectrochemical system is an electrochemical system in which biocatalysts, that is, microorganisms perform oxidation or reduction reactions on electrodes. The microorganisms in this bioelectrochemical system perform metabolism under the stimulation of the bioelectric reactor, and in such a process process pollutants with relatively low consumption, or use pollutants as raw materials to generate electricity by themselves. [0003] Bioelectrodialysis is a new type of bioelectrochemical technology, which combines microorganisms with electrodialysis technology to achieve the purpose of acid and ...

Claims

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Application Information

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IPC IPC(8): C12P7/46
Inventor 刘广立杨昆鹏卢霄骆海萍张仁铎
Owner SUN YAT SEN UNIV
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