Occurrence and removal of pharmaceutical and hormone contaminants in rural wastewater treatment lagoons

CORC > 厦门大学 > 海洋环境－已发表论文

	Occurrence and removal of pharmaceutical and hormone contaminants in rural wastewater treatment lagoons
	Li, Xiaolin ; Zheng, Wei ; Kelly, Walton R. ; Li XL(李骁麟)
刊名	http://dx.doi.org/10.1016/j.scitotenv.2012.12.035
	2013
关键词	PERSONAL CARE PRODUCTS ENDOCRINE DISRUPTORS AQUATIC ENVIRONMENT STEROID ESTROGENS SEPTIC SYSTEM PPCPS DEGRADATION CANADA MECHANISM KINETICS
英文摘要	Agriculture and Food Research Initiate Competitive from USDA National Institute of Food and Agriculture [2010-65102-20403]; Rural communities in the United States usually use a series of aerated lagoons to treat domestic wastewater. Effluents from these systems are typically discharged to receiving watersheds, which leads to a potential transfer of pharmaceuticals and personal care products (PPCPs) and steroid hormones from sanitary sewage to the environment. The primary objectives of this study are to identify and quantify PPCPs and steroid hormones in rural sewage treatment lagoons, to investigate the removal efficiency of these emerging contaminants in the treatment processes, and to monitor their occurrence in the surrounding watershed. In this study, a method has been developed to analyze thirteen PPCPs and eight steroid hormones in various water samples. Among all of the PPCPs considered, ten chemicals were detected in sewage influents, lagoon waters of different treatment stages, or effluents at concentrations in the ng/L to low mu g/L range. Three hormones were observed in the influents at total concentrations as high as 164 ng/L, but no hormone residues were detected in the effluents. This indicates that the aerated lagoons may effectively remove hormone conthminants. With the exception of carbamazepine, removal rates for the other detected PPCPs were relatively high in the range of 88 to 100% in September with average air temperature equal to 20 degrees C. However, the removal efficiency of nine PPCPs in the rural wastewater treatment plant exhibited large temporal variability. The concentrations of PPCPs in the lagoon waters and effluents collected in November, with average air temperature equal to 4.4 degrees C, were 1-2 orders of magnitude higher than those samples collected in September. Occurrence of these PPCP contaminants in the surrounding watershed was also monitored. The discharge of effluents significantly elevated the PPCP concentrations in the receiving creek and increased their occurrence in the adjacent river. (C) 2012 Elsevier B.V. All rights reserved.
语种	英语
出版者	ELSEVIER SCIENCE BV
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/87885]
专题	海洋环境－已发表论文
推荐引用方式 GB/T 7714	Li, Xiaolin,Zheng, Wei,Kelly, Walton R.,et al. Occurrence and removal of pharmaceutical and hormone contaminants in rural wastewater treatment lagoons[J]. http://dx.doi.org/10.1016/j.scitotenv.2012.12.035,2013.
APA	Li, Xiaolin,Zheng, Wei,Kelly, Walton R.,&李骁麟.(2013).Occurrence and removal of pharmaceutical and hormone contaminants in rural wastewater treatment lagoons.http://dx.doi.org/10.1016/j.scitotenv.2012.12.035.
MLA	Li, Xiaolin,et al."Occurrence and removal of pharmaceutical and hormone contaminants in rural wastewater treatment lagoons".http://dx.doi.org/10.1016/j.scitotenv.2012.12.035 (2013).