Analysis and occurrence of typical endocrine-disrupting chemicals in three sewage treatment plants

被引:25
|
作者
Wang, L. Y. [1 ]
Zhang, X. H. [1 ]
Tam, N. F. Y. [2 ]
机构
[1] Tsinghua Univ, Grad Sch Shenzhen, Ctr Environm Engn & Management, Shenzhen 518055, Peoples R China
[2] City Univ Hong Kong, Dept Biol & Chem, Kowloon, Hong Kong, Peoples R China
基金
中国国家自然科学基金;
关键词
endocrine disrupting chemicals; estradiol; estriol; ethynylestradiol; sewage treatment; WASTE-WATER; STEROID ESTROGENS; NATURAL ESTROGENS; SURFACE-WATER; HORMONES; RIVER; FATE; EFFLUENT; SEDIMENT;
D O I
10.2166/wst.2010.533
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Seven typical endocrine-disrupting chemicals (EDCs), including bisphenol A (BPA), 4-tert-octylphenol (OP), estrone (E1), estradiol (E2), 17 alpha-estradiol (17 alpha-E2), estriol (E3) and 17 alpha-ethinylestradiol (EE2) in wastewater, were simultaneously determined with gas chromatography-mass spectrometry (GC-MS). Samples, including influents, effluents and wastewater of different unit processes, were taken seasonally from three different sewage treatment plants. The result showed that BPA and EE2 were the two main types of EDCs in all the samples. The average concentration of BPA were in the range of 268.1-2,588.5 ng l(-1) in influents and 34.0-3,099.6 ng l(-1) in effluents, while EE2 ranging from 133.1 to 403.2 ng l(-1) and from 35.3 to 269.1 ng l (1), respectively. Seasonal change of EDCs levels in effluents was obvious between wet season and dry season. Besides, BPA and E3 could be effectively removed by the biological treatment processes (oxidation ditch and A(2)/O) with the unit removal of 64-91% and 63-100% for each compound, while other five EDCs had moderate or low removal rates. The study also proved that physical treatment processes, including screening, primary sedimentation and pure aeration, had no or little effect on EDCs removal.
引用
收藏
页码:2501 / 2509
页数:9
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