Recovery of acetic acid from dilute wastewater by means of bipolar membrane electrodialysis

✍ Scribed by Lixin Yu; Qingfeng Guo; Jihua Hao; Weijun Jiang

• Publisher: Elsevier Science
• Year: 2000
• Tongue: English
• Weight: 363 KB
• Volume: 129
• Category: Article
• ISSN: 0011-9164
• DOI: 10.1016/s0011-9164(00)00068-0

✦ Synopsis

Bipolar membrane electrodialysis was tested to recover acetic acid ~om 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 anionexchange membrane is one reason for the low electric current efficiency (around 40%). The problems to be solved by further studies include the raising of current efficiency and the lowering of energy consumption.