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学科主题: Engineering, Environmental; Environmental Sciences; Water Resources
题名: Occurrence and elimination of antibiotics at four sewage treatment plants in the Pearl River Delta (PRD), South China
作者: Xu, WH ; Zhang, G ; Li, XD ; Zou, SC ; Li, P ; Hu, ZH ; Li, J
通讯作者: zhanggan@gig.ac.cn
关键词: antibiotics ; wastewater ; influent ; effluent ; sludge ; Pearl River Delta (PRD) ; South China
刊名: WATER RESEARCH
发表日期: 2007
卷: 41, 期:19, 页:4526-4534
收录类别: sci
部门归属: Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China; Hong Kong Polytech Univ, Dept Civil & Struct Engn, Kowloon, Hong Kong, Peoples R China; Zhongshan Univ, Sch Chem & Chem Engn, Guangzhou 510250, Peoples R China; Chinese Acad Sci, S China Sea Inst Oceanol, LED, Guangzhou 510250, Peoples R China
项目归属: LED
摘要: In this paper, the occurrence and elimination of eight selected antibiotics mainly for human use, including chloramphenicol, fluoroquinolone, sulfonamide and macrolide groups, were investigated at four sewage treatment plants (STPs) in the Pearl River Delta (PRD), South China. The most frequently detected antibiotics in the present study were ofloxacin, norfloxacin, roxithromycin, erythromycin- H2O (the main degradation product of erythromycin) and sulfamethoxazole. The concentrations of these compounds in raw influents and final effluents at the four STPs ranged from 10 to 1978 ng L-1 and from 9 to 2054 ng L-1, respectively. The other analytes were detected only in a few samples from the four STPs. Antibiotics could not be eliminated completely at the four STPs, with the highest elimination efficiency reaching to 81%. Analysis of the dissolved daily mass flow showed that fluoroquinolones were mostly eliminated from the sewage, and high concentrations of these compounds were found in secondary sludge. Therefore, it can be concluded that the observed elimination of fluoroquinolones in the STPs was due to their sorption to the sludge, but not biodegradation. Macrolides, especially erythromycin-H2O, were stable in sewage during the treatment process, and in fact even higher concentrations were found in the final effluents than in the raw sewages. Sulfamethoxazole was also found in raw influent and final effluent, indicating that it could withstand different treatment processes in the STPs. Remarkable differences in the daily environmental loads (the sum of the amounts in the final effluent and sludge) of the five most frequently detected antibiotic compounds were found in the range of 0.5-828 g at the four STPs. (C) 2007 Elsevier Ltd. All rights reserved.
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WOS记录号: WOS:000250960600025
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/5849
Appears in Collections:热带海洋环境动力实验室(LTO)_期刊论文

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Xu, WH; Zhang, G; Li, XD; Zou, SC; Li, P; Hu, ZH; Li, J.Occurrence and elimination of antibiotics at four sewage treatment plants in the Pearl River Delta (PRD), South China,WATER RESEARCH,2007,41(19):4526-4534
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文件名: Occurrence and elimination of antibiotics at four sewage treatment plants in the Pearl River Delta (PRD), South China .pdf
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