Microbial community structure and function in a decentralized urban water infrastructure systems in German
ZHANG Kun1,2
1. China National Electric Apparatus Research Institute Co., Ltd., Guangzhou 510300, China;
2. School of Eco-environment Technology, Guangdong Industry Polytechnic, Guangzhou 510300, China
The microbial community structure in two bioreactors of a decentralized urban water infrastructure systems in Germany was investigated through 16S rRNA gene sequencing. The PICRUSt software was then used to deduce the function of the microbial community. In winter, the average COD removal rate reached 52% at 20℃, the influent COD was 712mg/L in the anaerobic membrane reactor (AnMBR) and the biogas production rate was 122L/kgCOD. At 37℃, the biogas production rate was 374L/kgVSS and the COD was 3007mg/L in the primary sludge digester (PSD). Similar microbial compositions were observed in both bioreactors, with Synerigistaceae having the highest relative abundance at the family level among bacteria (AnMBR:24.0%±10.0%; PSD:11.0%±3.1%) and Methanobacteriaceae having the highest relative abundance among archaea (AnMBR:0.6%±0.3%; PSD:13.8%±1.8%). The functional genomic composition was also similar in both reactors, with the H2reductive CO2 pathway being the main approach for methane production. The relative abundances of H2 reductive CO2 pathway related genes, F420synthesis related genes and coenzyme M synthesis related genes in the PSD reactor were higher than those in the AnMBR reactor.
张堃. 德国分散式污水处理系统微生物群落结构及功能[J]. 中国环境科学, 2018, 38(8): 2981-2989.
ZHANG Kun. Microbial community structure and function in a decentralized urban water infrastructure systems in German. CHINA ENVIRONMENTAL SCIENCECE, 2018, 38(8): 2981-2989.
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