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在污泥化处理过程中抗生素耐药性剂的动态

Eliane Cristina Braga Martins Gonçalves¹, Aline Gomes de Oliveira Paranhos², Andressa Rezende Pereira¹

¹Graduate Program in Environmental Engineering, School of Mines, Federal University of Ouro Preto, University Campus Morro do Cruzeiro, s/n, 35400-000, Ouro Preto, MG, Brazil.

Environmental pollution (Barking, Essex : 1987)

|October 16, 2024

概括

快处理有效地从污泥中去除了抗生素,抗生素耐药细菌 (ARB) 和抗菌素耐药基因 (ARG). 无氧污泥显示出更好的结果,尽管没有实现完全根除,这突显了环境问题.

科学领域:

环境科学环境科学
微生物学微生物学
化学工程是化学工程的重要组成部分.

背景情况:

抗菌素耐药性 (AMR) 是一个日益增长的全球健康威胁.
污水污泥可以藏和传播AMR剂.
有效的污泥处理对于缓解AMR传播至关重要.

研究的目的:

评估火 (化学化) 在从有氧和无氧污泥中去除AMR剂的有效性.
为了确定最佳的生混合比率和接触时间,以去除AMR剂.
为了比较有氧和无氧污泥处理之间的去除效率.

主要方法:

污泥样本 (有氧和无氧) 用25%,35%和45%的混合比率处理了生.
研究了2小时和72小时的接触时间.
量化了抗生素,ARB和ARG的清除率.

主要成果:

与有氧污泥相比,无氧污泥显示出更好的抗生素,ARB和ARG的去除能力.
45%的石灰实现了最大的抗生素减少 (19%有氧,28%无氧).
35%的石灰降低了ARG的2日志;25%的石灰降低了ARB的4-5日志.
较长的接触时间 (72小时) 显示AMR剂增加,特别是在有氧污泥中.

结论:

热处理是减少污泥中的AMR剂的可行方法,特别是在无氧条件下.
针对抗生素,ARB和ARG的最佳治疗参数各不相同.
不完全根除需要进一步的研究,以防止AMR的环境传播.

关键词:

活性污泥活动污泥抗生素化合物抗生素化合物抗生素耐药性抗生素耐药性抗微生物耐药性细菌 (ARB) 是一种抗微生物耐药性细菌.抗微生物耐药性基因 (ARG) 是一种抗微生物耐药性基因.快是一种快.污泥消毒污泥消毒污泥消毒

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