Preprint Article Version 1 This version is not peer-reviewed

Intensive Production of Carboxylic Acids Using Cl. butyricum in a Membrane Bioreactor (MBR)

Version 1 : Received: 13 August 2018 / Approved: 13 August 2018 / Online: 13 August 2018 (16:56:01 CEST)

A peer-reviewed article of this Preprint also exists.

Tajarudin, H.A.; Zacharof, M.-P.; Ratanapongleka, K.; Williams, P.M.; Lovitt, R.W. Intensive Production of Carboxylic Acids Using C. butyricum in a Membrane Bioreactor (MBR). Fermentation 2018, 4, 81. Tajarudin, H.A.; Zacharof, M.-P.; Ratanapongleka, K.; Williams, P.M.; Lovitt, R.W. Intensive Production of Carboxylic Acids Using C. butyricum in a Membrane Bioreactor (MBR). Fermentation 2018, 4, 81.

Journal reference: Fermentation 2018, 4, 81
DOI: 10.3390/fermentation4040081

Abstract

This work reports of the use of a bench scale chemostat (CSTR) in continuous mode and of a pilot scale membrane bioreactor (MBR) in fed-batch mode to intensively produce acetic and butyric acids using Cl. butyricum grown on synthetic media. These studies were then used to perform a cost estimation study of the MBR system to assess the potential economic impact of this proposed methodology. The MBR system was found highly productive reaching 37.88 g L-1 h-1 of acetic and 14.44 g L-1 h-1 of volumetric cell productivity, favoring acetic acid production to butyric at a ratio 3:1. The cost of preparation and production of carboxylic acids using this system was found as 0.0062 £PS/kg respectively and an up to 99% carbon recovery.

Subject Areas

acetic acid; butyric acid; effluents; microfiltration; fermentation; MBR

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