Abstract
A hybrid biofilm membrane reactor based on the moving-bed-biofilm reactor (MBBR) combined with solids separation in an immersed membrane reactor (IMR) has been investigated for the treatment of municipal wastewater. This process enables the design of compact treatment plants with high biodegradation efficiencies that produce high quality effluents. Retentate characteristics play an important role in the efficiency of the solids separation and subsequently the overall performance of the membrane unit. The aim of this study was to investigate and compare characteristics of the retentate in the membrane reactor as a function of organic loading rates in the bioreactor of this BF-MBR process.
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