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Modeling for the Recovery of Organic Acid by Bipolar Membrane Electrodialysis  

Kim, Sang-Hun (Department of Chemical System Engineering, Hongik University)
Lee, Byung-Chul (Department of Chemical System Engineering, Hongik University)
Publication Information
Korean Chemical Engineering Research / v.44, no.5, 2006 , pp. 476-482 More about this Journal
Abstract
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.
Keywords
Organic Acid; Acetic Acid; Lactic Acid; Bipolar Membrane Electrodialysis (EDBM); Modeling:;
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