Occurrence and abundance of tetracycline, sulfonamide resistance genes, and class 1 integron in five wastewater treatment plants

被引：66
作者：
Du, Jing [1 ]
Ren, Hongqiang [1 ]
Geng, Jinju [1 ]
Zhang, Yan [1 ]
Xu, Ke [1 ]
Ding, Lili [1 ]
机构：
[1] Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, Nanjing 210046, Jiangsu, Peoples R China
来源：
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH | 2014年 / 21卷 / 12期
基金：
美国国家科学基金会;
关键词：
Tetracycline resistance gene; Sulfonamide resistance gene; Class; 1; integron; Sewage source; Treatment process; ANTIBIOTIC-RESISTANCE; ACTIVATED-SLUDGE; REMOVAL; BACTERIA; FEEDLOTS; SOILS; RIVER;
D O I：
10.1007/s11356-014-2613-5
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
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 (intI1) were studied in five wastewater treatment plants with different treatment processes and different sewage sources. Among these resistance genes, sulfonamides genes (sul1 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, sul1, and intI1) decreased in effluent of plants treating domestic or industrial wastewater with anaerobic/aerobic or membrane bioreactor (MBR) technologies, but tetG, tetX, sul1, and intI1 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 sul1 first decreased in anaerobic effluent water but then increased in aerobic effluent water.
引用
收藏
页码：7276 / 7284
页数：9
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