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首页> 外文期刊>Biotechnology Progress >Bacterial Community Analysis in Upflow Multilayer Anaerobic Reactor Treating High-Solids Organic Wastes
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Bacterial Community Analysis in Upflow Multilayer Anaerobic Reactor Treating High-Solids Organic Wastes

机译：溢流多层厌氧反应器中的细菌群落分析治疗高固型有机废弃物

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A novel anaerobic digestion configuration, the upflow multi-layer anaerobic reactor (UMAR), was developed to treat high-solids organic wastes. The UMAR was hypothesized to form multi-layer along depth due to the upflow plug flow; use of a recirculation system and a rotating distributor and baffles aimed to assist treating high-solids influent. The chemical oxygen demand (COD) removal efficiency and methane (CH4) production rate were 89% and 2.10 L CH4/L/d, respectively, at the peak influent COD concentration (110.4 g/L) and organic loading rate (7.5 g COD/L/d). The 454 pyrosequencing results clearly indicated heterogeneous distribution of bacterial communities at different vertical locations (upper, middle, and bottom) of the UMAR. Firmicutes was the dominant (>70%) phylum at the middle and bottom parts, while Deltaproteobacteria and Chloroflexi were only found in the upper part. Potential functions of the bacteria were discussed to speculate on their roles in the anaerobic performance of the UMAR system. (C) 2017 American Institute of Chemical Engineers
机译：开发了一种新型的厌氧消化构型，上流多层厌氧反应器（UMAR），以处理高固体有机废物。 Umar被假设以沿着上流塞流形成多层;使用再循环系统和旋转分配器和挡板，旨在帮助治疗高固体流入物。化学需氧量（COD）去除效率和甲烷（CH 4）的生产率分别为89％和2.10L CH 4 / L / D，在峰值流入的COD浓度（110.4g / L）和有机加载速率（7.5g COD） / l / d）。 454焦点测序结果清楚地表明了umar的不同垂直位置（上部，中部，中部，底部）的细菌群落的异质分布。迫使是中间部分和底部和底部的主要（> 70％）字段，而Deltaproteobacteria和氯咯仅在上部发现。讨论了细菌的潜在功能，以推测其在umar系统的厌氧性能中的作用。 （c）2017美国化学工程师研究所

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