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首页> 外文期刊>Environmental Science & Technology >Effects of Pharmaceutically Active Compounds on a Mixed Microbial Community Originating from a Municipal Wastewater Treatment Plant
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Effects of Pharmaceutically Active Compounds on a Mixed Microbial Community Originating from a Municipal Wastewater Treatment Plant

机译：药物活性化合物对市政污水处理厂混合微生物群落的影响

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The growth and composition of microorganisms found in a municipal wastewater treatment plant were investigated in the presence of four pharmaceutically active compounds (PhACs) [ketoprofen, naproxen, carbamazepine, and clofibric acid] in batch reactors at varying organic loadings. Overall, the data suggest that microbial growth inhibition was correlated to organic loading rather than PhAC concentration. Significant inhibition ranging from 34 to 43% was observed under the lowest organic loading for all PhACs other than clofibric acid. No inhibition was observed at the highest organic loading. Higher microbial inhibition was not observed with increased PhAC concentration for a given organic loading. These results indicate thatthe presence of PhAC may affect microbial growth especially under lower organic loading conditions. Further validation is required with additional PhACs, organic substrates, and a wider loading range. In addition, significant microbial shifts were observed in the presence of ketoprofen and naproxen. These data suggest that, in addition to their effect on overall microbial growth, PhACs may affect the microbial ecology and additional research should be carried out to identify PhACs that have the potential of affecting ecologically important microorganisms in wastewater treatment processes and aquatic environments in general.
机译：在四种有机活性下，在间歇反应器中研究了四种污水处理厂中存在的四种药物活性化合物（PhAC）[酮洛芬，萘普生，卡马西平和氯纤维酸]，研究了市政污水处理厂中微生物的生长和组成。总体而言，数据表明微生物生长抑制与有机负荷而不是PhAC浓度相关。在除氯纤维酸以外的所有PhAC的最低有机负载下，均观察到了显着的抑制作用，范围为34％至43％。在最高有机负荷下未观察到抑制作用。在给定的有机负荷下，随着PhAC浓度的增加，未观察到更高的微生物抑制作用。这些结果表明，PhAC的存在可能会影响微生物的生长，尤其是在较低的有机负荷条件下。需要更多的PhAC，有机底物和更宽的负载范围来进一步验证。另外，在酮洛芬和萘普生的存在下观察到明显的微生物迁移。这些数据表明，PhAC除了会影响微生物的总体生长外，还可能影响微生物生态，因此应开展更多研究，以确定在废水处理过程和一般水生环境中可能影响重要生态微生物的PhAC。

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