Lactic acid recovery from fermentation by bipolar membrane electrodialysis and ionic migration

LIN Han; WANG Qunhui; WANG Lijuan; LI Yan; CHEN Huanxi

doi:10.3969/j.issn.0438-1157.2014.12.024

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Lactic acid recovery from fermentation by bipolar membrane electrodialysis and ionic migration

更新时间：2025-12-10

- Lactic acid recovery from fermentation by bipolar membrane electrodialysis and ionic migration
- CIESC Journal Issue 12, Pages: 4823-4830(2014)
- 作者机构：
  
  1. 北京科技大学土木与环境工程学院,北京,100083
  2. 工业典型污染物资源化处理北京市重点实验室,北京,100083
  3. 山西省环境科学研究院,山西,太原,030027
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2014.12.024
  CLC： 92
- Online First：05 December 2014，
  
  Published：05 December 2014
- 稿件说明：
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LIN Han, WANG Qunhui, WANG Lijuan, et al. Lactic acid recovery from fermentation by bipolar membrane electrodialysis and ionic migration[J]. CIESC Journal, 2014, (12): 4823-4830.
DOI：

LIN Han, WANG Qunhui, WANG Lijuan, et al. Lactic acid recovery from fermentation by bipolar membrane electrodialysis and ionic migration[J]. CIESC Journal, 2014, (12): 4823-4830. DOI： 10.3969/j.issn.0438-1157.2014.12.024.

摘要

考察了双极膜电渗析法分离酒糟发酵液中乳酸的影响因素

结果表明:当进料浓度13.5 g·L-1

工作电压27 V

进料浓度比1.3

流量20 L·h-1

电渗析10 h

产品罐中的乳酸浓度增加至20.95 g·L-1

是电渗析前进料罐中的乳酸浓度的1.6倍

具有显著的浓缩效果.酸根离子迁移规律的研究表明

乳酸根离子的迁移速率明显高于其他酸根离子

且丙酸和乙酸的乳酸分离率相对较低.

Abstract

A series of factors were examined in the separation of lactic acid (HLa) from lees fermentation by bipolar membrane electrodialysis. When the fermentation with the initial HLa concentration of 13.5 g·L-1 was treated by bipolar membrane electrodialysis under the conditions of voltage 27 V

feeding concentration ratio 1.3

and flow rate 20 L·h-1 for 10 h

HLa concentration of discharging tank was 20.95 g·L-1

which was 1.6 times the initial concentration

a significant concentrated effect. Moreover

the analysis of acid ion migration shows that immigration rate of lactic acid ions is significantly higher than that of other acid ions. The relative separation efficiency of HLa to propionate and acetic acid are lower.

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