Fast atrazine degradation by the mixed cultures enriched from activated sludge and analysis of their microbial community succession
文献类型： 外文期刊
第一作者： Zhou, Qingxin
作者： Zhou, Qingxin;Chen, Leilei;Wang, Junhua;Qiu, Jiying;Liu, Xiaoyong;Zhang, Xiang;Chen, Xiangyan;Wang, Zhibin;Ni, Shouqing;Wang, Zhibin
作者机构：
关键词： Atrazine; Degradation; Sewage sludge; Microbial community; Diversity; Bioremediation
期刊名称：ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH （ 影响因子：4.223； 五年影响因子：4.306 ）
ISSN： 0944-1344
年卷期： 2017 年 24 卷 28 期
页码：
收录情况： SCI
摘要： In this study, fast atrazine degradation by the mixed bacterial cultures from sewage sludge was investigated. The acquired activated cultures showed great capability in atrazine degradation. The biodegradation process was well fitted into a pseudo-first reaction kinetic model. Atrazine could inhibit the propagation of ammonium oxidation bacteria and nitrite oxidation bacteria, decreasing the ammonium removal rate and the accumulation of nitrite. Only 162-172 reads of Nitrosomonadaceae and no Nitrospirales were detected after atrazine was exposed to the mixed cultures. The bacterial community structures in the cultures under different inoculation conditions (with or without atrazine) were investigated to explore the mechanism of atrazine degradation. Our results show that the genera Thiobacillus and Ferruginibacter were the most possible candidates responsible for the degradation of atrazine.
分类号： X5`X
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