Zuehlke S, Duennbier U, Lesjean B, Gnirss R, Buisson H
Institute of Environmental Research, University of Dortmund, Germany.
Water Environ Res. 2006 Dec;78(13):2480-6. doi: 10.2175/106143006x111826.
The removal of trace organic compounds through membrane bioreactors (MBR) compared with a conventional wastewater treatment plant (WWTP) in a long-term study was investigated. Two MBR pilot plants were operated in parallel to a full-scale WWTP fed with the same municipal raw wastewater. Polar compounds (phenazone-type pharmaceuticals, their metabolites, and carbamazepine) and less polar estrogenic steroids (estradiol, estrone, and ethinylestradiol) were quantified. The removal rate of phenazone, propyphenazone, and formylaminoantipyrine by the conventional WWTP was less than 15%. Significantly higher removal rates (60 to 70%) started to be clearly monitored in the pilot plants after approximately 5 months. Higher removal rates coincided with higher temperatures in the summer. The conventional WWTP removed, on average, more than 90% of the natural steroids estrone and estradiol and approximately 80% of the synthetic ethinylestradiol. Approximately 99% of estradiol and estrone and approximately 95% of ethinylestradiol was eliminated by the MBR processes.
在一项长期研究中，对通过膜生物反应器（MBR）与传统污水处理厂（WWTP）去除痕量有机化合物的情况进行了调查。两座MBR中试工厂与一座采用相同城市原污水的全规模污水处理厂并行运行。对极性化合物（非那宗类药物、其代谢物和卡马西平）以及极性较小的雌激素类固醇（雌二醇、雌酮和炔雌醇）进行了定量分析。传统污水处理厂对非那宗、丙非那宗和甲酰氨基安替比林的去除率低于15%。大约5个月后，在中试工厂中开始明显监测到显著更高的去除率（60%至70%）。更高的去除率与夏季的高温同时出现。传统污水处理厂平均去除了超过90%的天然类固醇雌酮和雌二醇以及大约80%的合成炔雌醇。MBR工艺消除了大约99%的雌二醇和雌酮以及大约95%的炔雌醇。
