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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.

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Edition: Vol. 90 - No. 11 Published: 11/01/1998 Number of Pages: 9File Size: 1 file , 970 KB