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首页> 外文期刊>Environmental Science and Pollution Research >Occurrence and abundance of tetracycline, sulfonamide resistance genes, and class 1 integron in five wastewater treatment plants
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Occurrence and abundance of tetracycline, sulfonamide resistance genes, and class 1 integron in five wastewater treatment plants

机译：五家污水处理厂中四环素，磺酰胺抗性基因和1类整倍体的发生和丰度

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摘要

To understand the transport and fate of antibiotic resistance genes in wastewater treatment plants, 12 resistance genes (ten tetracycline resistance genes, two sulfonamides genes) and class 1 integron gene (intll) were studied in five wastewater treatment plants with different treatment processes and different sewage sources. Among these resistance genes, sulfonamides genes (sull and sul2) were of the most prevalent genes with detection frequency of 100 %. The effluent water contained fewer types of resistance genes than the influent in most selected plants. The abundance of five quantified resistance genes (tetG, tetW, tetX, sull, and intll) decreased in effluent of plants treating domestic or industrial wastewater with anaerobic/aerobic or membrane bioreactor (MBR) technologies, but tetG, tetX, sull, and intll increased along the treatment units of plants treating vitamin C production wastewater by anaerobic/aerobic technology. In plant treating cephalosporins production wastewater by UASB/aerobic process, the quantities of tetG, tetX, and sull first decreased in anaerobic effluent water but then increased in aerobic effluent water.
机译：为了了解抗生素抗性基因在废水处理厂中的迁移和命运，在五个处理工艺和污水不同的废水处理厂中研究了12个抗性基因（十个四环素抗性基因，两个磺酰胺基因）和1类整合子基因（intll）。资料来源。在这些抗性基因中，磺酰胺类基因（sull和sul2）是最流行的基因，检测频率为100％。在大多数选定的植物中，废水中所含抗性基因的类型少于其进水。使用厌氧/好氧或膜生物反应器（MBR）技术处理生活或工业废水的植物的废水中，五个定量抗性基因（tetG，tetW，tetX，sull和intll）的丰度降低，但是tetG，tetX，sull和intll沿厌氧/好氧技术处理维生素C生产废水的工厂处理单位中的废水排放量有所增加。在通过UASB /好氧工艺处理头孢菌素生产废水的工厂中，厌氧废水中的tetG，tetX和sull的量首先减少，但好氧废水中的增加。

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