污水厂二级出水中抗生素抗性菌残留及其特性

发布时间：2018-05-20 07:22

本文选题：污水厂二级出水 + 抗生素抗性菌　；参考：《中国给水排水》2016年23期

【摘要】：抗生素滥用引起抗性菌扩散已成为严重的公共卫生安全隐患。以某污水厂二级出水为研究对象,检测青霉素、氨苄青霉素、头孢氨苄、氯霉素、四环素、环丙沙星、庆大霉素、阿奇霉素和利福平等9种抗生素在不同浓度下的抗性菌数量和比例,分析不同剂量紫外线对抗性菌的灭活效果及其复活能力。结果表明,青霉素、氨苄青霉素、头孢氨苄、氯霉素抗性菌的耐受性较强,复活能力较弱;四环素和庆大霉素抗性菌次之;环丙沙星、阿奇霉素和利福平抗性菌的抗性较弱,复活能力较强。随着抗生素浓度的增加,抗性菌数量减少,紫外线消毒剂量与抗性菌复活能力呈负相关。经紫外线常规消毒剂量灭活后储存过程中抗性菌出现复活现象。
[Abstract]:The spread of resistant bacteria caused by antibiotic abuse has become a serious public health and safety hazard. Penicillin, ampicillin, cefalexin, chloramphenicol, tetracycline, ciprofloxacin, gentamicin were detected in secondary effluent of a wastewater treatment plant. The number and proportion of azithromycin and rifampicin 9 antibiotics in different concentrations were analyzed to analyze the inactivation effect and reactivation ability of different doses of ultraviolet rays on resistant bacteria. The results showed that penicillin, ampicillin, cefalexin, chloramphenicol resistant bacteria had strong tolerance and weak resurrection ability, tetracycline and gentamycin resistant bacteria were second, ciprofloxacin, azithromycin and rifampicin resistant bacteria were weak, Resurrection ability is strong. With the increase of antibiotic concentration, the number of resistant bacteria decreased, and the dose of ultraviolet disinfection was negatively correlated with the ability of resistant bacteria to revive. After the conventional ultraviolet disinfectant was inactivated, the resistant bacteria appeared resurrection during storage.
【作者单位】：吉林建筑大学松辽流域水环境教育部重点实验室;清华大学环境学院;武汉理工大学环境学院;
【基金】：吉林省教育厅项目(吉教合同20150168) 松辽流域水环境协调创新中心项目国家自然科学基金资助项目(51078209)
【分类号】：X703

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