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The recovery of acetic acid from dilute wastewater by means of bipolar membrane electrodialysis is studied in more detail. The current efficiency of the electrodialysis recovery of acetic acid from dilute wastewater is related to the current density and other operation parameters. There exists a highest value of current efficiency at optimal current density. The highest concentration of recovered...
Bipolar membrane electrodialysis was tested to recover acetic acid from dilute wastewater containing 0.2% (wt%) of acetic acid. Experimental results show that the method is technically feasible, and up to 70% (wt%) acetic acid solution can be obtained. Experiments also show that the molecular diffusion back of acetic acid through an anion-exchange membrane is one reason for the low electric current...
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