Analysis of energy recovery and microbial community in an amalgamated CSTR-UASBs reactor for a three-stage anaerobic fermentation process of cornstalks

In this study, a continuous stirred-tank reactor (CSTR) coupled with up-flow anaerobic sludge beds (UASBs) reactor was successfully developed for enhancing methane production and carbon recovery rate from cornstalks. Acetic acid production was higher in regions A than in B and C. The methane percent...

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Veröffentlicht in:Water science and technology : a journal of the International Association on Water Pollution Research. - 1986. - 86(2022), 7 vom: 28. Okt., Seite 1848-1857
1. Verfasser: Zhao, Bowei (VerfasserIn)
Weitere Verfasser: Xie, Fei, Zhou, Aijuan, Liu, Zhihong, Ji, Li, Zhang, Guixiang, Yue, Xiuping
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:Water science and technology : a journal of the International Association on Water Pollution Research
Schlagworte:Journal Article Acetates Sewage Carbon 7440-44-0 Lignin 9005-53-2 Methane OP0UW79H66
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520 |a In this study, a continuous stirred-tank reactor (CSTR) coupled with up-flow anaerobic sludge beds (UASBs) reactor was successfully developed for enhancing methane production and carbon recovery rate from cornstalks. Acetic acid production was higher in regions A than in B and C. The methane percentage achieved at 75.98% of total gas and methane production of cornstalks was up to 520.07 mL/g, during the stable operation period. The carbon of recovery rate, represented substrates converted to methane gas, reached 69.32% in stable stage. Microbial community structure analysis revealed that Paludibacter, Prevotella/Clostridium sensu stricto, and Caldisericum were the dominant bacteria for the degradation of cellulose, lignin, and other refractory macromolecules in regions A, B, and C, respectively. Methanobacterium and Methanolinea were the two major genera, accounting for methanogenesis generation 
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700 1 |a Xie, Fei  |e verfasserin  |4 aut 
700 1 |a Zhou, Aijuan  |e verfasserin  |4 aut 
700 1 |a Liu, Zhihong  |e verfasserin  |4 aut 
700 1 |a Ji, Li  |e verfasserin  |4 aut 
700 1 |a Zhang, Guixiang  |e verfasserin  |4 aut 
700 1 |a Yue, Xiuping  |e verfasserin  |4 aut 
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