UNSW Water Research Centre, University of New South Wales, Sydney, NSW 2052, Australia.
Water Sci Technol. 2010;61(5):1081-8. doi: 10.2166/wst.2010.884.
The concentrations of some important endocrine disrupting chemicals and pharmaceuticals after various stages of wastewater treatment were investigated. The endocrine disrupting chemicals included natural and synthetic estrogenic and androgenic steroids. The pharmaceuticals included a series of sulfonamide antibiotics and trimethoprim. The removal efficiency of a membrane bioreactor (MBR) was investigated and compared with a conventional activated sludge (CAS) system. Samples were analysed by liquid chromatography tandem mass spectrometry. Results showed that the MBR and CAS systems effectively removed steroidal estrogens and androgens, but only partially eliminated the target antibiotics from wastewater. The MBR was shown to be more effective than the CAS system which was possibly attributed to the high solid retention time and concentration of biosolids in the MBR. The results highlight the potential wider application of MBRs for the removal of trace chemical contaminants in wastewater and their potential for use as decentralised wastewater treatment systems.
研究了各种废水处理阶段后一些重要内分泌干扰化学物质和药物的浓度。内分泌干扰化学物质包括天然和合成的雌激素和雄激素类固醇。药物包括一系列磺胺类抗生素和甲氧苄啶。研究了膜生物反应器（MBR）的去除效率，并与传统的活性污泥（CAS）系统进行了比较。样品通过液相色谱串联质谱法进行分析。结果表明，MBR 和 CAS 系统有效地去除了甾体雌激素和雄激素，但仅部分去除了废水中的目标抗生素。MBR 比 CAS 系统更有效，这可能归因于 MBR 中高的固体停留时间和生物固体浓度。结果强调了 MBR 去除废水中痕量化学污染物的潜在更广泛应用及其作为分散式废水处理系统的潜力。
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