Occurrence of sulfonamide antibiotics in sewage treatment plants

查看全文 作　　者：CHANG [1]Hong;HU [1]JianYing;WANG [1]LeZheng;SHAO [2]Bing

机构地区：[1]College of Environmental Sciences, Peking University, Beijing 100871, China;[2]Beijing Center for Disease Prevention and Control, Beijing 100013, China

出　　处：《Chinese Science Bulletin》索引2008年第53卷第4期,共7页

基　　金：Supported by the National Natural Science Foundation of China (Grant No. 20610103);the Ministry of Science and Technology of China (Grant No. 2006DFA91130) 摘　　要：The occurrence of sulfonamide antibiotics(SAs) was investigated in the six sewage treatment plants(STPs) of Beijing,China.Of the 13 objective antibiotics,sulfamethoxazole,sulfapyridine,sulfamerazine,sulfadiazine and sulfamethizol were detected in the influents with the average concentrations of 1.2 ± 0.45,0.29 ± 0.25,0.048 ± 0.012,0.35 ± 0.52 and 0.33 ± 0.21 μg·L-1,respectively,and those in the effluents were 1.4 ± 0.74,0.22 ± 0.19,0.021 ± 0.008,0.22 ± 0.21and 0.01± 0 μg·L-1,respectively.Sulfamethoxazole was the predominant compound detected,and was found in all wastewater samples with the other two compounds sulfapyridine and sulfamerazine.It should be noted that sulfadiazine was first reported in wastewaters,and the concentration levels of all detected compounds except for sulfamethizol(detected once in the effluent samples) in the influents were observed to be similar to those in the effluents.From the data in this study,it can be found that sulfamethoxazole,sulfapyridine,sulfamerazine and sulfadiazine could be partly removed in anoxic and aerobic treatment unit and vice versa in anaerobic process,which led to their low or even negative removal rates in the effluents.The increase on the concentrations of sulfamethoxazole and sulfapyridine in the effluents was found probably due to the biotransformation of their acetylated forms in anaerobic treatment unit.In addition,it was observed that the biodegradation of sulfamethoxazole and sulfapyridine could partly occur during the anoxic and aerobic process,while sulfamerazine was partly eliminated in the anaerobic and anoxic units. 关键词：污水处理生物转化城市污水处理厂磺胺类药抗生素

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Occurrence of sulfonamide antibiotics in sewage treatment plants

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