Characteristics of microbial community structure in the stable operation of the partial cut nitrification system with seasonal temperature
ZHAO Xin-yan1, BIAN Wei1, HOU Ai-yue2, KAN Rui-zhe1, ZHAO Qing1, LI Jun1
1. College of Architecture Engineering, Beijing University of Technology, Beijing 100124, China;
2. Beijing Guohuan Tsinghua Environment Engineering Design and Research Institute, Beijing 100084, China
In order to investigate the effect of seasonal temperature on microbial community structure of nitrification biofilm system, the nitrification biofilm system in MBBR reactor under the temperature of 28.3,23.3,21.6,9.6 and -0.2℃ were studied by using denatures gradient gel electrophoresis polymerase chain reaction(PCR-DGGE) technique. The activity of bacteria affected by loss of the water temperature, but did not affect stability of nitrification. During the change of water temperature(21.6~0.2℃), the total bacteria and AOB stayed stable; and the waste-water treatment of Bacillus, Flavobacterium and Nitrosomonas also stayed stable. The dominant bacteria in biofilm mainly was Proteobacteria and Bacteroidetes under the average temperature of 28.3~-0.2℃, and the AOB was Nitrosomonas that was the part of β-Proteobacteria. The partial nitrification under low temperature was achieved by controlling HRT merely, and it made great sense for the application of shortcut nitrification process.
赵昕燕, 卞伟, 侯爱月, 阚睿哲, 赵青, 李军. 季节性温度对短程硝化系统微生物群落的影响[J]. 中国环境科学, 2017, 37(4): 1366-1374.
ZHAO Xin-yan, BIAN Wei, HOU Ai-yue, KAN Rui-zhe, ZHAO Qing, LI Jun. Characteristics of microbial community structure in the stable operation of the partial cut nitrification system with seasonal temperature. CHINA ENVIRONMENTAL SCIENCECE, 2017, 37(4): 1366-1374.
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