Electrodialysis of acetate fermentation broths
- 129 Downloads
Electrodialysis (ED) shows good potential for downstream processing of acetate fermentation broths, to separate acetic acid while unreacted glucose and other nutrients are partially recycled back to the fermenter. With conventional anion- and cation-exchange membranes, higher current increased acetate flux, water flux, and energy consumption. Multiple ED stacks connected in series with unequal initial volumes for a batch process maximized acetate concentration in the concentrating stream to 134g/L calcium-magnesium acetate (CMA) in the fermentation broth at pH 6.8. Back-transport of acetate from the product into the feed stream and water transport limit the maximum concentration possible. Cost of ED is about $295/ton acetate for the CMA broth.
Index EntriesAcetate electrodialysis membranes separation
Unable to display preview. Download preview PDF.
- 4.Cheryan, M. (1998), Ultrafiltration and Microfiltration Handbook, Technomic, Lancaster, PA.Google Scholar
- 6.Shah, M. M. and Cheryan, M. (1995), Appl. Biochem. Biotechnol. 51–52, 413–422.Google Scholar
- 8.Raman, L. P., Rajagopalan, N., and Cheryan, M. (1994), Chem. Eng. Progr. 90(3), 68–74.Google Scholar
- 9.Han, I. S. and Cheryan, M. (1996), Appl. Biochem. Biotechnol. 57/58, 19–27.Google Scholar
- 10.Yen, Y. H. and Cheryan, M. (1991), Trans. Inst. Chemical Engrs. (UK). 69 (Part C), 200–205.Google Scholar
- 13.Perry, R. H., Green, D. W., and Maloney, J. O. (1984), Perry's Chemical Engineering Handbook, 6th ed. McGraw-Hill, New York.Google Scholar
- 14.Chukwu, U. N. (1995), Ph. D. thesis, University of Illinois at Urbana-Champaign, Urbana, IL.Google Scholar
- 15.Yao, P. X. and Toda, K. (1990), J. Gen. Appl. Microbiol. 36, 111–125.Google Scholar