JOURNAL OF LIGHT INDUSTRY

CN 41-1437/TS  ISSN 2096-1553

Volume 34 Issue 6
November 2019
Article Contents
ZHANG Xiaojing, ZHANG Han, ZHOU Yue, et al. Start-up and microbial community shift of partial nitrification-anammox process[J]. Journal of Light Industry, 2019, 34(6): 56-63. doi: 10.3969/j.issn.2096-1553.2019.06.008
Citation: ZHANG Xiaojing, ZHANG Han, ZHOU Yue, et al. Start-up and microbial community shift of partial nitrification-anammox process[J]. Journal of Light Industry, 2019, 34(6): 56-63. doi: 10.3969/j.issn.2096-1553.2019.06.008 shu

Start-up and microbial community shift of partial nitrification-anammox process

  • Received Date: 2019-06-26
  • The ordinary activated sludge was inoculated in the SBR reactor, and the temperature was 22~26℃, the pH was 7.8 to 8.0, the DO value was less than 0.1 mg/L, and the ammonia nitrogen concentration in the feed water was 400 mg/L.After 21 d,the nitrogen accumulation rate was stable above 95% and the partial nitrosation was started successfully; then the conditions of ammonia nitrogen concentration, reaction time, water exchange ratio and other conditions were changed to stabilize the operation to 75 d; during the anaerobic ammonia oxidation start-up phase, the reaction time was adjusted to 7 hours of aeration and 16 hours of anaerobic, the total nitrogen removal rate reached more than 70% after 35 days,and the partial nitrosation-anaerobic ammonia oxidation process started successfully. In different stages of the reactor, the relative abundance of proteobacteria was reduced from 83.64% to 10.09%; the relative abundance of floccus was increased from 1.63% to 8.1%.
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