earticle

영어

Membrane processes of electrodialys (ED) and nanofiltration (NF) are environmentally friendly tools with no secondary waste generation for the recovery of various organic acids produced by fermentation. An organic acid usually exists in the fermentation broth in a salt from. Desalting to isolate this salt from other impurities is performed first and then the conversion of the recovered salt to its acid form is done. In this talk, experimental results on the isolation of lactic acid and succinic acid by desalting ED or desalting NF, and the acidification by watersplitting ED will be discussed together with mathematical modeling of each process.