School of Environment and Energy, Key Laboratory for Urban Habitat Environmental Science and Technology, Peking University Shenzhen Graduate School, Shenzhen 518055, China.
Environ Pollut. 2012 Jun;165:215-24. doi: 10.1016/j.envpol.2011.12.025. Epub 2012 Jan 5.
Great efforts have been made in China to retrofit and upgrade the existing municipal wastewater treatment plants (WWTPs) for enhanced removal of organic substrates and in particular nutrients. However, the removal of trace recalcitrant or hazardous organic chemicals, e.g. steroid estrogens, one group of typical endocrine disrupting chemicals, has long been overlooked. The extensive investigations on estrogen removal rates in global and Chinese WWTPs and the estrogen biodegradation kinetics results in batch laboratory experiments are reviewed in this study. The effects of estrogen initial concentration and nitrifying activated sludge are highlighted. Challenges existing in current estrogen studies are pointed out, which are relevant for researches on fate and behavior of similar down-the-drain chemicals in both Chinese and global WWTPs.
中国在对现有城市污水处理厂（WWTP）进行改造和升级方面做出了巨大努力，以增强对有机基质，特别是营养物质的去除。然而，痕量难降解或有害的有机化学品，如甾体雌激素（一类典型的内分泌干扰化学物质）的去除，长期以来一直被忽视。本研究综述了全球和中国 WWTP 中雌激素去除率的广泛调查以及批量实验室实验中的雌激素生物降解动力学结果。强调了雌激素初始浓度和硝化活性污泥的影响。指出了当前雌激素研究中存在的挑战，这些挑战与中国和全球 WWTP 中类似下水道化学物质的归宿和行为研究有关。
