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Mesophilic degradation of butyric acid in anaerobic digestion

✍ Scribed by Chiu-Yue Lin; Yun-Yao Hu

Publisher
Wiley (John Wiley & Sons)
Year
2007
Tongue
English
Weight
287 KB
Volume
56
Category
Article
ISSN
0268-2575

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✦ Synopsis

Seed sludges acclimatized with is0 and normal butyric acids were used in batch-type anaerobic digestion. Isomerization between is0 and normal butyric acid occurred; the formation of isobutyric acid was independent of pH but the reverse process was pH dependent. The relative formation percentages for normal and isobutyric acid, based on the added butyric acid concentrations, were about 2.3 % and 6.0 %, respectively. Acetic acid inhibited normal butyric acid degradation less than isobutyric acid degradation. Based on the experimental findings, a pathway for the degradation of butyric acid to acetic acid is proposed.

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