1. Institute of Chemical Engineering page 1 Achema 2012 Thermal Process Engineering Application of Nanofiltration on Membrane Bioreactor Abdel Halim Fuqaha, Anton Friedl afuqaha@mail.zserv.tuwien.ac.at Application of Nanofiltration on Membrane Bioreactor

2. Institute of Chemical Engineering page 2 Achema 2012 Thermal Process Engineering Research aim and objectives The main aims of this research: to investigate the applicability of Nanofiltration on the membrane biological reactor process. The influence cross flow velocity on the membrane performance due to the compounds that could be present in the biologically treated water. These aims can be achieved by characterizing the formed cake structure along the membrane surface according to: 1.The load of the Particle count, particle size 2.active biomass along the membrane surface 3.Correlation with cake resistance

3. Institute of Chemical Engineering page 3 Achema 2012 Thermal Process Engineering Configurations of MBR Immersed MBR External MBR Immersed MBR: dead end filtration Immersed MBR: cross flow filtration

4. Institute of Chemical Engineering page 4 Achema 2012 Thermal Process Engineering Influence of cross flow velocity on the cake layer structure The increase in cross flow velocity had reduced the particle load and the effective particle size to a certain limit Setup consist of : (1)holding tank(2) (2)Heat exchanger (3)gear pump (4) manometer (5) filtration cell (6) balances (7) connecters (8) Pc (9) Rotameter

5. Institute of Chemical Engineering page 5 Achema 2012 Thermal Process Engineering Influence of cross flow velocity on membrane performance The Increase in cross flow velocity had increased the membrane productivity to a certain limit for both membrane types, while the cake resistance had decreased due to the decease in the formed particle load and the formation of the loss structure of the cake layer.