Fate and Mass Balance of 13 Kinds of Endocrine Disrupting Chemicals in a Sewage Treatment Plant
Solid phase extraction (SPE)/high performance liquid chromatography (HPLC) was employed to simultaneously determine 13 kinds of interested endocrine disrupting chemicals (EDCs) in the wastewater taken from a sewage treatment plant (STP) of Harbin, China. Results show that the concentrations of estriol, estrone, dimethyl phthalate (DMP) and 4-tert-octylphenol (4-t-OP) increase in the primary sedimentation effluent, comparing to that in its influent. The removal rates of EDCs range from 70％ to 96％ in the STP, but not for 17α-ethynylestradiol (EE2) (60.4％) and diethylstilbestrol (51.3％). Studies indicate that most of the EDCs partition dominantly in aquatic phase except for dibutyl phthalate, di-(2-ethylhexyl) phthalate, 4-t-OP, branched nonylphenol and 4-n-nonylphenol. The mass balance was carried out for evaluating the ability of the secondary treatment process to remove EDCs. It turns out that the removals obtained from biodegradation range from 4.2％ (EE2) to 91.8％ (DMP). In the meantime, the removals achieved by excess activated sludge range from 0.5％ (bisphenol A) to 45.2％ (EE2).
endocrine disrupting chemicals sewage treatment plant mass balance
Xiao-Ling Shao Jun Ma
School of Municipal and Environmental Engineering Harbin Institute of Technology Harbin,China
国际会议
北京
英文
1-4
2009-06-11（万方平台首次上网日期，不代表论文的发表时间）