CAJ | 학술논문

以三种酚类化合物(4-OP、4-n-NP、BPA)、五种雌激素(E1、E2、E3、17α-E2、EE2)为目标物,对其在北京市三个污水处理厂进、出水中的浓度及工艺流程中的分布、迁移进行了研究.结果表明,污水处理厂出水中浓度最高的物质是BPA、EE2,分别为(56～140)、(78～115)ng/L.BPA和天然雌激素(17α-E2除外)主要被生物降解去除,而对EE2的去除主要发生在初级处理过程,去除率约为63%.两种烷基酚在污水处理厂并不能被有效去除.与欧美国家、日本等相比,北京市污水处理厂进、出水中的内分泌干扰物浓度偏高,尤其是出水中的雌激素浓度较高,具有一定的环境风险.
이삼충분류화합물(4-OP、4-n-NP、BPA)、오충자격소(E1、E2、E3、17α-E2、EE2)위목표물,대기재북경시삼개오수처리엄진、출수중적농도급공예류정중적분포、천이진행료연구.결과표명,오수처리엄출수중농도최고적물질시BPA、EE2,분별위(56～140)、(78～115)ng/L.BPA화천연자격소(17α-E2제외)주요피생물강해거제,이대EE2적거제주요발생재초급처리과정,거제솔약위63%.량충완기분재오수처리엄병불능피유효거제.여구미국가、일본등상비,북경시오수처리엄진、출수중적내분비간우물농도편고,우기시출수중적자격소농도교고,구유일정적배경풍험.
The eight kinds of selected endocrine disrupting compounds (EDCs) composed of three phenolic compounds and five estrogens were investigated in three wastewater treatment plants (WWTPs) of Beijing. These EDCs include 4-octylphenol (4-OP), 4-n-nonylphenol (4-n-NP), bisphenol A (BPA), estrone (E1), estradiol (E2), estriol (E3), 17α-estradiol (17α-E2) and 17 α-ethinylestradi-ol (EE2). BPA and EE2 are on the top list of selected EDCs in the effluent with concentrations of 56 to 140 ng/L and 78 to 115 ng/L, respectively. BPA and natural estrogens (except 17α-E2) are removed mainly by biological treatment while the removal of EE2 takes place mainly in primary treatment with the removal rate of about 63%. Besides, the processes of WWTPs studied can not remove the two alkylphe-nols (4-OP and 4-n-NP) efficiently. Compared with those of WWTPs in USA, Europe and Japan, EDCs concentrations in the influent and effluent of WWTPs studied, especially effluent estrogens, are higher, which shows an environmental risk.