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Carbon Mass Balance of Biohydrogen Production Process by Clostridium butyricum TISTR 1032: Effect of Oxygen Scavenger

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Abstract:

A dark hydrogen fermentation process of food waste by Clostridium butyricum TISTR 1032 was examined under the condition of initial pH 6, 37oC and varied condition with oxygen scavenger in 5 L semi-batch reactors. Results showed that oxygen scavenger significantly elevated the maximum rate of hydrogen production (Rm) (203.5 mL h-1) compared to that without oxygen scavenger (30.6 mL h-1). However, it did not improve the maximum cumulative hydrogen production (Hmax). Carbon mass balance was used to explore the direction of fermentative process including toidentify type of fermentative process. Butyric acid fermentation was recognized as the fermentation type of this study under both conditions. Drop of pH and accumulation of total undissociated acid considerably reduced the hydrogen production.

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Periodical:

Advanced Materials Research (Volumes 512-515)

Pages:

1466-1472

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.512-515.1466

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Online since:

May 2012

Authors:

Suwimon Kanchanasuta, Nipon Pisutpaisal

Keywords:

Biohydrogen, Carbon Mass Balance, Clostridium butyricum, Food Waste

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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