Performance of a partially packed charcoal pellet bioreactor for acetic acid fermentation

• Published in: Journal of bioscience and bioengineering Vol. 92; no. 5; pp. 478 - 480
• Main Authors: Horiuchi, J. (Kitami Inst. of Technology, Hokkaido (Japan)), Ando, K, Watanabe, S, Toda, K, Kobayashi, M, Kanno, T
• Format: Journal Article
• Language: English
• Published: Amsterdarm Elsevier Science 2001; Elsevier Limited
• Subjects: Acetic acid; ACETIC FERMENTATION; Biological and medical sciences; BIOREACTORS; Biotechnology; CHARCOAL; Fermentation; Fundamental and applied biological sciences. Psychology; Methods. Procedures. Technologies; Pelletizing; PELLETS; PERFORMANCE TESTING; Various methods and equipments; Performance evaluation; Bioreactor; Packed bed; Acetic acid; Acetic fermentation; Charcoal
• ISSN: 1389-1723; 1347-4421
• DOI: 10.1263/jbb.92.478

The performance of a partially packed charcoal pellet bioreactor was compared to that of a fully packed bioreactor for aerobic acetic acid production. In the fully packed charcoal pellet bioreactor, it was considered that the shortening of an actual retention time of the culture broth limited the bioreactor performance under high dilution rate and high aeration conditions. By reducing the filling ratio of charcoal pellets to 44%, which increased the actual retention time of the culture broth, the maximum productivity increased from 3.9 g/l/h in the fully packed bed bioreactor to 5.7 g/l/h in the partially packed bioreactor without affecting the operational stability.