Modeling and biokinetics in anaerobic acidogenesis of starch-processing wastewater to acetic acid
SCIE
SCOPUS
- Title
- Modeling and biokinetics in anaerobic acidogenesis of starch-processing wastewater to acetic acid
- Authors
- Ahn, JH; Lee, S; Hwang, S
- Date Issued
- 2004-03
- Publisher
- AMER CHEMICAL SOC
- Abstract
- Starch-processing wastewater was anaerobically treated to produce acetic acid in laboratory-scale, continuously stirred tank reactors. The optimal conditions, in which the maximum acetic acid production occurred, were 0.56 d hydraulic retention time, pH 5.9, and 36.1 degreesC. Acetic acid production at the optimum conditions was 672 +/- 20 mg total organic carbon(equivalent) L-1, which indicated a 75% conversion efficiency of influent total organic carbon into acetic acid. A fourth order Runge-Kutta approximation was used to determine the Monod kinetics of the acidogens by using unsteady-state data from continuous unsteady-state experiments at the optimum conditions. The model outputs and experimental data fit together satisfactorily, suggesting that the unsteady-state approach was appropriate for the evaluation of acidogenic biokinetics. These included mu(m), K-s, Y, and k(d), which were evaluated as being 0.13 h(-1), 25 mg total carbohydrate (TC) L-1, 0.38 mg volatile suspended solid mg(-1) TC, and 0.002 h(-1), respectively.
- Keywords
- CHEESE-WHEY; ACIDIFICATION; DIGESTION
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/17995
- DOI
- 10.1021/BP0342811
- ISSN
- 8756-7938
- Article Type
- Article
- Citation
- BIOTECHNOLOGY PROGRESS, vol. 20, no. 2, page. 636 - 638, 2004-03
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- There are no files associated with this item.
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