您好，欢迎访问福建省农业科学院 机构知识库！
福建省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Occurrence and removal of endocrine-disrupting chemicals in wastewater treatment plants in the Three Gorges Reservoir area, Chongqing, China

文献类型： 外文期刊

作者： Ye, Xin 1 ; Guo, Xuesong 2 ; Cui, Xing 1 ; Zhang, Xian 1 ; Zhang, Han 1 ; Wang, M. K. 3 ; Qiu, Ling 1 ; Chen, Shaohua 1 ;

作者机构： 1.Chinese Acad Sci, Key Lab Urban Environm & Hlth, Inst Urban Environm, Xiamen 361021, Peoples R China

2.Chinese Acad Sci, Ecoenvironm Sci Res Ctr, Beijing 100085, Peoples R China

3.Fujian Acad Agr Sci, Fuzhou 350003, Peoples R China

期刊名称：JOURNAL OF ENVIRONMENTAL MONITORING （ 2014影响因子：2.179； 五年影响因子：2.461 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： Concentrations of six endocrine-disrupting compounds (EDCs), bisphenol A (BPA), estrone (E _1), 17β-estradiol (E _2), estriol (E _3), 17α-ethynylestradiol (EE _2) and diethylstilbestrol (DES), were assessed in influents, effluents and excess sludge in ten municipal wastewater treatment plants (WWTPs) in the Three Gorges Reservoir (TGR) area, Chongqing, China. Three types of activated sludge treatment processes, oxidation ditch (OD), reversed anaerobic-anoxic-oxic (rA ~2/O) technology and sequential batch reactor (SBR), were used in the surveyed WWTPs. These WWTPs were all combined landfill leachate-sewage treatment plants. All analytes were extracted by solid-phase extraction (SPE) in the dissolved phase and by accelerated solvent-based extraction (ASE) in sludge. Gas chromatography-mass spectrometry (GC-MS) was employed for the analysis of EDCs. Among these EDCs, BPA was the most frequently detected and abundant compound (100.0-10566.7 ng L ~(-1), 15.5-1210.7 ng L ~(-1) and 85.0-2470.4 ng g ~(-1) with respect to the influents, effluents and excess sludge samples). The greatest levels of steroidal estrogens in municipal influents were observed in E _3 which were all >100 ng L ~(-1), followed by E _1 (42.2-110.7 ng L ~(-1)) and E 2 (7.4-32.7 ng L ~(-1)), and in the effluents and sludge were E _1 > E _3 > E _2 which were all <31 ng L -1 and 105 ng g ~(-1), respectively. Regarding synthetic estrogens, EE _2 was frequently detected in the influents, occurring below 50 ng L ~(-1), while DES was not detected at all. A high correlation coefficient was observed between the leachate-sludge ratio and concentrations of influent EDCs, and it was statistically significant (i.e., R > 0.65, P < 0.05), but removal efficiency of the EDCs did not show significant differences with OD, rA ~2/O and SBR processes. Furthermore, modification of treatment technology as well as operational parameters, such as hydraulic retention time (HRT), sludge retention time (SRT) and disinfection process (DP), were recommended to further eliminate the residual EDCs.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：福建省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台