Summary
A cross-flow ceramic membrane was coupled to a bioreactor to fulfil the alternate functions of process stream clarifier and primary aerator. At the same air supply rate (delivered as a back-flush), ceramic membranes provided up to 72% greater aeration than a ring-sparger located in the bioreactor. In Biol.ogical treatment of dairy food process waste, the air backflush had the additional benefit of inhibiting membrane fouling, thereby maintaining higher (by about 100%) permeate fluxes.
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Scott, J.A., Howell, J.A., Arnot, T.C. et al. Enhanced system kLa and permeate flux with a ceramic membrane bioreactor. Biotechnol Tech 10, 287–290 (1996). https://doi.org/10.1007/BF00184031
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DOI: https://doi.org/10.1007/BF00184031