半连续进料与传统驯化相结合，提高了木薯渣处理过程中的厌氧性能。
Semi-continuous feeding combined with traditional domestication improved anaerobic performance during treatment of cassava stillage.
机构信息
College of Life Science and Technology, Guangxi University, Nanning 530005, Guangxi, China; State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Nanning 530005, Guangxi, China; College of Chemical and Biological Engineering, Hechi University, Hechi 546300, Guangxi, China.
College of Life Science and Technology, Guangxi University, Nanning 530005, Guangxi, China; State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Nanning 530005, Guangxi, China.
出版信息
Bioresour Technol. 2019 Nov;291:121807. doi: 10.1016/j.biortech.2019.121807. Epub 2019 Jul 13.
The effects of feeding pattern were studied during anaerobic digestion of cassava stillage. Continuous feeding and semi-continuous feeding, were adopted in two internal circulation (IC) reactors (A and B, respectively). The reactors showed different performance in the anaerobic digestion process. The maximum difference, was observed for the soluble chemical oxygen demand (SCOD) removal rate and the biogas production, which were 23.2% and 95.7 L/2 d higher in reactor B than reactor A, respectively. The overall VFAs level of reactor A was higher than that of reactor B. Microbial community analyses indicated that the abundances of dominant bacteria and methanogens became higher in the reactor B than in reactor A as the digestion process progressed. Hence, semi-continuous feeding showed superior performance than continuous feeding for SCOD removal rate, biogas production, and the relative abundances of methanogens in the case of high OLR.
在木薯渣的厌氧消化过程中研究了进料方式的影响。采用两种内循环（IC）反应器（分别为 A 和 B）进行连续进料和半连续进料。在厌氧消化过程中，这两个反应器表现出不同的性能。最大的差异是在可溶性化学需氧量（SCOD）去除率和沼气产量方面，分别比反应器 A 高 23.2%和 95.7 L/2 d。反应器 A 的总体 VFAs 水平高于反应器 B。微生物群落分析表明，随着消化过程的进行，反应器 B 中优势细菌和产甲烷菌的丰度高于反应器 A。因此，在高 OLR 的情况下，半连续进料在 SCOD 去除率、沼气产量和产甲烷菌相对丰度方面表现优于连续进料。
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