Modeling for the Recovery of Organic Acid by Bipolar Membrane Electrodialysis

바이폴라막 전기투석에 의한 유기산 회수에 관한 모델링

  • Kim, Sang-Hun (Department of Chemical System Engineering, Hongik University) ;
  • Lee, Byung-Chul (Department of Chemical System Engineering, Hongik University)
  • 김상헌 (홍익대학교 과학기술대학 화학시스템공학과) ;
  • 이병철 (홍익대학교 과학기술대학 화학시스템공학과)
  • Received : 2006.03.31
  • Accepted : 2006.06.20
  • Published : 2006.10.31


This paper studied the recovery of organic acid from organic acid salt by using bipolar membrane electrodialysis. Acetic acid and lactic acid was used as for organic acid. Organic acid concentration, sodium hydroxide concentration and pH values were measured at various current density. Organic acid salt was effectively converted to organic acid and sodium hydroxide. Based on the experimental results, mathematical models were developed, in which time changes in ion balance were considered. Model predictions of organic acid concentration, sodium hydroxide concentration and pH values were in good agreement with the experimental data.


Supported by : 홍익대학교


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