本文讨论了一项研究，该研究调查了膜生物反应器（MBR）系统在城市污水回收中的长期性能，以检验将处理后的水作为公共水源间接再利用的可能性。对系统的出水水质和长期稳定性进行了评价。设计了一个中试规模的MBR系统，并在稳定状态下运行了500多天。在此期间，对几个方面进行了监测和评估:病毒和异养细菌的保留；有机化合物指标，用于检查有机物去除的程度以及去除机制；MBR去除七种金属的能力和保留途径； 产品水的浊度、气味、颜色、pH值和溶解氧浓度；以及所用无机膜的耐久性和可靠性。包括17个参考文献、表格、图表。

This article discusses a study which investigated the long-term performance of a membrane bioreactor (MBR) system in the reclamation of municipal wastewater to examine the possibility of indirect reuse of the treated water as a public water source. Effluent quality and long-term stability of the system were evaluated. A pilot-scale MBR system was designed and operated at steady state for more than 500 days. During this time, several aspects were monitored and evaluated: the retention of viruses and heterotrophic bacteria; indicators of organic compounds, to allow examination of the extent of organics removal as well as removal mechanisms; the capacity of the MBR to remove seven metals and the retention pathways; the product water's turbidity, odor, color, pH, and dissolved oxygen concentration; and, the durability and reliability of the inorganic membranes used. Includes 17 references, tables, figures.