Effect of pH dynamic control on ethanol-lactic type fermentation (ELTF) performance of glucose

This study proposed a new ethanol-lactic type fermentation (ELTF) and explored the optimal control strategy. Using batch experiments, the effects of pH, temperature and organic loading (OL) on ELTF were investigated. The sum of ethanol and lactic acid yield was highest at whole-control pH value of 4...

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Veröffentlicht in:Environmental technology. - 1993. - 43(2022), 26 vom: 03. Nov., Seite 4102-4114
1. Verfasser: Yue, Liu (VerfasserIn)
Weitere Verfasser: Chuan, Shi, Yuanyuan, Wu, Han, Dan, Li, Kun, Jinyuan, Ma, Kaijun, Wang
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:Environmental technology
Schlagworte:Journal Article Anaerobic fermentation dynamic pH control mode ethanol-lactic type fermentation metabolic pathways microbiology community Glucose IY9XDZ35W2 Lactic Acid 33X04XA5AT mehr... Ethanol 3K9958V90M
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520 |a This study proposed a new ethanol-lactic type fermentation (ELTF) and explored the optimal control strategy. Using batch experiments, the effects of pH, temperature and organic loading (OL) on ELTF were investigated. The sum of ethanol and lactic acid yield was highest at whole-control pH value of 4.0, 35°C temperature and OL of 33 gCOD/L. To improve ELTF, the dynamic pH control in the long-term CSTR was adjusted at 4.0 (1-28 days), 5.0 (29-44 days) and 4.0 (46-62 days) successively. The high concentration of ethanol and lactic acid was 8190.5 mg/L at 16th day of pH 4.0. At pH of 5.0, the average acidogenesis rate and total concentration of fermentation products increased 111.0% and 128.0%, respectively. Organisms of Lactobacillus and Bifidobacterium were the predominant bacteria in reactor. It can achieve the directional regulation of ELTF and provides parameter support for the application of two-phase anaerobic digestion 
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650 7 |a Ethanol  |2 NLM 
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700 1 |a Chuan, Shi  |e verfasserin  |4 aut 
700 1 |a Yuanyuan, Wu  |e verfasserin  |4 aut 
700 1 |a Han, Dan  |e verfasserin  |4 aut 
700 1 |a Li, Kun  |e verfasserin  |4 aut 
700 1 |a Jinyuan, Ma  |e verfasserin  |4 aut 
700 1 |a Kaijun, Wang  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Environmental technology  |d 1993  |g 43(2022), 26 vom: 03. Nov., Seite 4102-4114  |w (DE-627)NLM098202545  |x 1479-487X  |7 nnas 
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