Effect of dissolve oxygen on the microbial community of the nitrite-oxidizing bacteria in an intermittent aeration reactor
BAO Peng, WANG Shu-ying, MA Bin, ZHANG Qiong, PENG Yong-zhen
Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Engineering Research Center of Beijing, Beijing University of Technology, Beijing 100124, China
Nitrospira and Nitrobacter are two dominant types of nitrite-oxidizing bacteria (NOB).To evaluate the effect of dissolved oxygen (DO) on microbial community of NOB under the intermittent-aeration mode, the population and microbial community of this two NOB types were investigated in an aeration reactor with low DO period (55d) and high DO period (113d). Results showed the population of Nitrospira was much higher than that of Nitrobacter during the low DO period (0.2~0.5mg/L), and most clones of Nitrospira was very similar to the clone Candidatus Nitrospira defluvii. After increasing DO to a high level (1.5~2.3mg/L) and operating for 113d, Nitrobacter turned to the dominant group. Most clones of Nitrobacter were distributed to the branch containin Nitrobacter winogradskyi. Furthermore, the nitrite accumulation occurred in this reactor during the shift of population between Nitrospira and Nitrobacter after increasing DO, and it gradually disappeared when Nitrobacter became the dominant NOB group.
包鹏, 王淑莹, 马斌, 张琼, 彭永臻. 不同溶解氧间歇曝气对亚硝酸盐氧化菌的影响[J]. 中国环境科学, 2016, 36(9): 2696-2702.
BAO Peng, WANG Shu-ying, MA Bin, ZHANG Qiong, PENG Yong-zhen. Effect of dissolve oxygen on the microbial community of the nitrite-oxidizing bacteria in an intermittent aeration reactor. CHINA ENVIRONMENTAL SCIENCECE, 2016, 36(9): 2696-2702.
Daims H, Nielsen J L, Nielsen P H, et al. In situ characterization of Nitrospira-like nitrite-oxidizing bacteria active in wastewater treatment plant[J]. Applied and Environmental Microbiology, 2001,67(11):5273-5284.
[2]
Peng Y, Zhu G. Biological nitrogen removal with nitrification and denitrification via nitrite pathway[J]. Applied Microbiology and Biotechnology, 2006,73(1):15-26.
[3]
Spieck E, Hartwig C, Cormack I, et al. Selective enrichment and molecular characterization of a previously uncultured Nitrospira-like bacterium from activated sludge[J]. Environmental Microbiology, 2006,8:405-415.
[4]
Siripong S, Rittmann B E. Diversity study of nitrifying bacteria in full-scale municipal wastewater treatment plants[J]. Water Research, 2007,41(5):1110-1120.
[5]
Yang S, Yang F. Nitrogen removal via short-cut simultaneous nitrification and denitrification in an intermittently aerated moving bed membrane bioreactor[J]. Journal of Hazardous Materials, 2011,195:318-323.
[6]
Li J, Elliott D, Nielsen M, et al. Long-term partial nitrification in an intermittently aerated sequencing batch reactor (SBR) trearing ammonium-rich wastewater under controlled oxygen-limited conditions[J]. Biochemical Engineering Journal, 2011,55(3):215-222.
[7]
Li H, Zhou S, Huang G, et al. Partial nitritation of landfill leachate with varying influent composition under intermittent aeration conditions[J]. Process Safety and Environmental Protection, 2013,91(4):285-294.
[8]
Li J, Healy M G, Zhan X, et al. Nutrient removal from slaughterhouse wastewaster in an intermittently aerated sequencing batch reactor[J]. Bioresource Technology, 2008, 99(16):7644-7650.
[9]
Park H, Rosenthal A, Jezek R, et al. Impact of inocula and growth mode on the molecular microbial ecology of anaerobic ammonia oxidation (anammox) bioreactor communitites[J]. Water Research, 2010,44(17):5005-5013.
[10]
Degrange V, Bardin R. Detection and counting of Nitrobacter population in soil by PCR[J]. Applied and Environmental Microbiology, 1995,61(6):2093-2098.
[11]
Regan J M, Harrington G W, Noguera D R. Ammonia-and nitrite-oxidizing bacterial communities in a pilot-scale chloraminated drinking water distribution system[J]. Applied and Environmental Microbiology, 2002,68(1):73-81.
[12]
Zeng W, Zhang Y, Li Y, et al. Control and optimization of nitrifying communities for nitritation from domestic wastewater at room temperatures[J]. Enzyme and Microbial Technology, 2009,45(3):226-232.
[13]
Huang Z, Gedalanga P B, Asvapathangual P, et al. Influence of physicochemical and operational parameters on Nitrobacter and Nitrospira communities in an aerobic activated sludge bioreactor[J]. Water Research, 2010,44(15):4351-4358.
[14]
Nogueria R, Melo L. Competition between Nitrospira spp. And Nitrobacter spp. in nitrite-oxidizing bioreactors[J]. Biotechnology and Bioengineering, 2006,95(1):169-175.
[15]
Liu G, Wang J. Long-term low DO enriches and shifts nitrifier community in activated sludge[J]. Environmental Science and Technology, 2013,47(10):5109-5117.
[16]
Park H D, Nogura D R. Nitrospira community composition in bitrifying reactors operated with two different dissolved oxygen levels[J]. Journal of Micobiology and Biotechnology, 2008,18(8): 1470-1474.
[17]
Regmi P, Miller M W, Holgate B, et al. Control of aeration, aerobic SRT and COD input for mainstream nitritation/denitritation[J]. Water Research, 2014,57(5):162-171.
[18]
Ma Y, Peng Y, Wang S, et al. Achieving nitrogen removal via nitrite in a pilot-scale continuous pre-denitrification plant[J]. Water Research, 2009,43(3):564-572.
[19]
Ma B, Zhang S, Zhang L, et al. The feasibiluty of using a two-stage autotrophic nitrgen removal process to treat sewage[J]. Bioresource Technology, 2011,102(17):8331-8334.
[20]
Lucker S, Wagner M, Maixner F, et al. A Nitrospira metagenome illuminates the physiology and evolution of globally important nitrite-oxidizing bacteria[J]. PNAS, 2010,107:13479-13484.