College of Environment and Energy, South China University of Technology, Guangzhou, 510006, China,
Environ Sci Pollut Res Int. 2015 Mar;22(6):4753-8. doi: 10.1007/s11356-014-3981-6. Epub 2014 Dec 24.
The main source of natural estrogens to municipal wastewater is human excretions via urine or feces, thus their concentrations in raw wastewater should show positive linear relationship with their human excretions. This study mainly focused on their concentration relationship in raw wastewater. Based on comparison between chemical analyses and predictions through human excretion rates, the observed concentrations of estriol (E 3) in municipal wastewater were found to be noticeably lower than the predicted values. The main cause for the disparity is that substantial conjugated E 3 also exists in raw wastewater. This work suggested that monitoring both E 3 and its conjugates is necessary to get more accurate E 3 removal performance of wastewater treatment plants (WWTPs).
天然雌激素进入城市污水的主要来源是人类通过尿液或粪便排泄，因此其在原污水中的浓度应与其人类排泄量呈正线性关系。本研究主要关注原污水中的浓度关系。通过对人类排泄率的化学分析和预测的比较，发现市政污水中雌三醇（E3）的实际浓度明显低于预测值。造成这种差异的主要原因是原污水中存在大量结合态的 E3。本工作表明，为了更准确地获得污水处理厂（WWTP）对 E3 的去除效果，有必要同时监测 E3 及其共轭物。
