摘要(Abstract)：
为了研究不同浓度的氟喹诺酮类抗生素环丙沙星对短程硝化－厌氧氨氧化工艺的脱氮效能的影响，采用连续流式反应器进行分阶段长期实验；采用紫外分光光度法、高效液相色谱法及三维荧光光谱法，对不同阶段反应 器的脱氮效能、环丙沙星去除率及可溶性微生物产物荧光特性进行表征。结果表明：当环丙沙星的质量浓度为0.1mg/L时，反应器出水硝态氮的质量浓度由28.71mg/L增至44.28mg/L，一段时间后恢复稳定；反应器对环丙沙星的耐药性逐渐增强，恢复稳定期不断缩短；环丙沙星能够改变微生物物种丰富度和多样性以及各属的相对丰度。
关键词(KeyWords)： 生物脱氮；短程硝化-厌氧氨氧化工艺；环丙沙星；微生物群落结构；毒性评价
基金项目(Foundation): 国家自然科学基金项目(52270071)
作者(Author): 许会学，薛晓东，司光超，张馨文，冯锐，魏东
DOI: 10.13349/j.cnki.jdxbn.20230327.001
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