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紫外线消毒对废水排放中耐抗生素大肠菌群的影响。

Effect of UV light disinfection on antibiotic-resistant coliforms in wastewater effluents.

作者信息

Meckes M C

出版信息

Appl Environ Microbiol. 1982 Feb;43(2):371-7. doi: 10.1128/aem.43.2.371-377.1982.

Abstract

Total coliforms and total coliforms resistant to streptomycin, tetracycline, or chloramphenicol were isolated from filtered activated sludge effluents before and after UV light irradiation. Although the UV irradiation effectively disinfected the wastewater effluent, the percentage of the total surviving coliform population resistant to tetracycline or chloramphenicol was significantly higher than the percentage of the total coliform population resistant to those antibiotics before UV irradiation. This finding was attributed to the mechanism of R-factor-mediated resistance to tetracycline. No significant difference was noted for the percentage of the surviving total coliform population resistant to streptomycin before or after UV irradiation. Multiple drug resistance patterns of 300 total coliform isolates revealed that 82% were resistant to two or more antibiotics. Furthermore, 46% of these isolates were capable of transferring antibiotic resistance to a sensitive strain of Escherichia coli.

摘要

从紫外线照射前后的过滤活性污泥流出物中分离出总大肠菌群以及对链霉素、四环素或氯霉素具有抗性的总大肠菌群。尽管紫外线照射有效地对废水流出物进行了消毒,但存活的总大肠菌群中对四环素或氯霉素具有抗性的百分比显著高于紫外线照射前总大肠菌群中对这些抗生素具有抗性的百分比。这一发现归因于R因子介导的对四环素的抗性机制。紫外线照射前后,存活的总大肠菌群中对链霉素具有抗性的百分比没有显著差异。对300株总大肠菌群分离株的多重耐药模式分析表明,82%的分离株对两种或更多种抗生素具有抗性。此外,这些分离株中有46%能够将抗生素抗性转移至敏感的大肠杆菌菌株。

相似文献

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Comparison of methods of enumerating coliforms after UV disinfection.紫外线消毒后大肠菌群计数方法的比较。
Appl Environ Microbiol. 1984 Oct;48(4):699-701. doi: 10.1128/aem.48.4.699-701.1984.

引用本文的文献

本文引用的文献

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Infective heredity of multiple drug resistance in bacteria.细菌多重耐药性的感染性遗传
Bacteriol Rev. 1963 Mar;27(1):87-115. doi: 10.1128/br.27.1.87-115.1963.
4
Infectious drug resistance in bacteria.细菌中的传染性耐药性。
Curr Top Microbiol Immunol. 1971;56:43-98. doi: 10.1007/978-3-642-65241-7_3.
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Effects of residual chlorine on aquatic life.余氯对水生生物的影响。
J Water Pollut Control Fed. 1973 Oct;45(10):2180-93.

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