厌氧氨氧化菌
生物膜
诺氟沙星
化学
微生物种群生物学
微生物学
抗生素
氮气
环境化学
念珠菌
食品科学
生物
细菌
生物化学
反硝化
环丙沙星
反硝化细菌
基因
基因组
有机化学
遗传学
作者
Xiaojing Zhang,Tao Chen,Jun Zhang,Han Zhang,Shuhua Zheng,Chen Zhao,Yongpeng Ma
出处
期刊:Chemosphere
[Elsevier]
日期:2018-07-23
卷期号:210: 1185-1192
被引量:46
标识
DOI:10.1016/j.chemosphere.2018.07.100
摘要
Antibiotic pollution in nitrogen contained wastewater is an urgent issue. In this study, the nitrogen removal, biofilm property and microbial community of Anammox system were investigated with elevated norfloxacin (NOR) feeding. Batch experiments were carried out to detect the specific anammox activity (SAA) in each phase. Anammox system could resist NOR in 0.001–50 mg L−1, in which the nitrogen removal was firstly limited to 0.220 from the initial 0.345 by NOR suppression and then regained to 0.354 kg m−3 d−1 after acclimatization. SAA decreased to 7.56 from the initial 10.84 and then climbed up to 11.01 mg g−1 SS, while the relative abundance of Candidatus Kuenenia decreased to 11.33% and then picked up to 25.28% from the initial 20.74%. The suppression threshold on Anammox was calculated as 50–100 mg L−1 NOR, the NRR, SAA and Candidatus Kuenenia abundance all recovered to almost the initial level when NOR feeding was terminated.
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