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Development of Novel Textile Bioreactor for Anaerobic Utilization of Flocculating Yeast for Ethanol Production
University of Borås, Faculty of Textiles, Engineering and Business. (Resource recovery)ORCID iD: 0000-0003-3488-4003
University of Borås, Faculty of Textiles, Engineering and Business. (Resource recovery)
University of Borås, Faculty of Textiles, Engineering and Business. (Resource Recovery)ORCID iD: 0000-0003-4887-2433
2015 (English)In: Fermentation, ISSN 2311-5637, Vol. 1, no 1, 98-112 p., 101566Article in journal (Refereed) Published
Sustainable development
The content falls within the scope of Sustainable Development
Abstract [en]

Process development, cheaper bioreactor cost, and faster fermentation rate can aid in reducing the cost of fermentation. In this article, these ideas were combined in developing a previously introduced textile bioreactor for ethanol production. The bioreactor was developed to utilize flocculating yeast for ethanol production under anaerobic conditions. A mixing system, which works without aerators, spargers, or impellers, but utilizes the liquid content in the bioreactor for suspending the flocculating yeast to form a fluidized bed, was developed and examined. It could be used with dilution rates greater than 1.0 h−1 with less possibility of washout. The flow conditions required to begin and maintain a fluidized bed were determined. Fermentation experiments with flow rate and utilization of the mixing system as process variables were carried out. The results showed enhanced mass transfer as evidenced by faster fermentation rates on experiments with complete sucrose utilization after 36 h, even at 30 times lesser flow rate.

Place, publisher, year, edition, pages
MDPI , 2015. Vol. 1, no 1, 98-112 p., 101566
Keyword [en]
flocculating yeast, textile bioreactor, ethanol, mass transfer, mixing, fluidization
National Category
Engineering and Technology
Research subject
Resource Recovery
URN: urn:nbn:se:hb:diva-3354DOI: 10.3390/fermentation1010098OAI: diva2:875505
Available from: 2015-12-01 Created: 2015-12-01 Last updated: 2016-01-13Bibliographically approved

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Osadolor, Osagie AlexLennartsson, PatrikTaherzadeh, Mohammad J
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