Shao Xiao-Ling, Wen Gang, Ma Jun
School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China.
Huan Jing Ke Xue. 2009 May 15;30(5):1362-7.
Solid phase extraction/yeast two-hybrid system was used to investigate estrogenic effects of Songhua River water of Harbin reach and drinking water of Harbin. Results show that the estrogenic activities of Songhua River water in summer and autumn are 528-965 pg x L(-1) estradiol equivalents (EEQs), and the estrogenic activity of source water is in a high level. The removal rates of estrogenic activity are 34.6%-50.5% in a waterworks of Harbin. It reveals that estrogenic pollutants in source water are not efficiently removed in the plant. As a result, a level of 298-718 pg x L(-1) of estrogenic activity is left in the effluent of the plant. Results also demonstrate that coagulation-sedimentation process is the most stable treatment in the removal of estrogenic activity among the three water treatment processes applied in the plant, with a removal efficiency of 11.4%-26.1% which accounts for 32.9%-69.0% of the total removal. Processes of sand filtration and chlorination are not stable, and estrogenic activities of their effluents sometimes are higher than those in their influents. Moreover, the estrogenic activity of tap water is increased to the maximum of 44.9% in comparison with that of the effluent of the plant due to the secondary contamination produced in the process of pipe delivering. The estrogenic activities of tap water of Harbin are 347-1,362 pg x L(-1) measured in seven sampling events, with a mean value of 738 pg x L(-1).
采用固相萃取/酵母双杂交系统研究了哈尔滨段松花江水及哈尔滨市饮用水的雌激素效应。结果表明，松花江夏季和秋季水体的雌激素活性为528 - 965 pg·L⁻¹雌二醇当量（EEQs），原水雌激素活性处于较高水平。哈尔滨某水厂对雌激素活性的去除率为34.6% - 50.5%，表明原水中的雌激素污染物在水厂中未得到有效去除，水厂出水仍残留298 - 718 pg·L⁻¹的雌激素活性。结果还表明，在该厂应用的三种水处理工艺中，混凝沉淀工艺对雌激素活性的去除最为稳定，去除效率为11.4% - 26.1%，占总去除量的32.9% - 69.0%。砂滤和氯化工艺不稳定，其出水的雌激素活性有时高于进水。此外，由于管道输送过程中的二次污染，哈尔滨自来水的雌激素活性相较于水厂出水最高增加了44.9%。在七次采样中，哈尔滨自来水的雌激素活性为347 - 1362 pg·L⁻¹，平均值为738 pg·L⁻¹。
