Evaluation of perfluorinated compounds in seven wastewater treatment plants in Beijing urban areas
文献类型:期刊论文
作者 | Pan YuanYuan ; Shi YaLi ; Wang JieMing ; Cai YaQi |
刊名 | SCIENCE CHINA-CHEMISTRY
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出版日期 | 2011-03-01 |
卷号 | 54期号:3页码:552—558 |
中文摘要 | The presence of perfluorinated compounds (PFCs) in seven major wastewater treatment plants (WWTPs) in Beijing was investigated in the current study. We detected nine PFCs in all the wastewater and sludge samples. Perfluorooctane acid (PFOA) is the dominant PFCs in influents and effluents, while perfluorooctane sulfonate (PFOS) is the major contaminant in sludge. The highest PFC concentration was found in plants at Qinghe and Jiuxianqiao WWTP, while the lowest was found at Fangzhuang WWTP. The total values of PFC range from 2.88 to 176 ng/L in influents, from 5.48 to 498 ng/L in effluents, and from 1.21 to 32.0 ng/g (dry wt) in sludge. The fact that effluents usually contain higher levels of PFCs than influents suggests that additional PFCs are produced during the wastewater treatment processes. However, PFOS decreases in effluents than in influents in 62% of the water samples. This may be due to the adsorption and removal of the sludge during the active process. Perfluoroalkyl carboxylates (PFCAs) were found significantly correlated with each other in the effluents, which may indicate their similar sources or the existence of their potential precursors in the wastewater or treatment processes. The mass flows of PFC discharges into WWTPs are 0.4-51.4 mg/day, and the mass flows of PFCs in effluents exceed those in influents by 127%. Domestic and commercial wastewaters are suggested to be the major sources of PFC pollution in WWTPs in Beijing. |
WOS记录号 | WOS:000288173200018 |
公开日期 | 2012-10-18 |
源URL | [http://ir.rcees.ac.cn/handle/311016/7100] ![]() |
专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
推荐引用方式 GB/T 7714 | Pan YuanYuan,Shi YaLi,Wang JieMing,et al. Evaluation of perfluorinated compounds in seven wastewater treatment plants in Beijing urban areas[J]. SCIENCE CHINA-CHEMISTRY,2011,54(3):552—558. |
APA | Pan YuanYuan,Shi YaLi,Wang JieMing,&Cai YaQi.(2011).Evaluation of perfluorinated compounds in seven wastewater treatment plants in Beijing urban areas.SCIENCE CHINA-CHEMISTRY,54(3),552—558. |
MLA | Pan YuanYuan,et al."Evaluation of perfluorinated compounds in seven wastewater treatment plants in Beijing urban areas".SCIENCE CHINA-CHEMISTRY 54.3(2011):552—558. |
入库方式: OAI收割
来源:生态环境研究中心
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