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This slide presentation outlines information on membrane fouling at high organic loading rates in the submerged membrane bioreactor treating municipal wastewater. Topics covered include: two kinds of membrane bioreactors (MBR), modified activated sludge process and ultrafiltration (UF) / microfiltration (MF) membrane; external and submerged configurations; flow schemes for the SMBR and conventionalactivated sludge process; process limitation; rationale; effect of F/M on steady-state fouling rate; equipment and apparatus; membrane operation and characteristics; experimental methods; biological foaming - nocardioform; illustration of surfacing wasting forbiological foam control; resistance in-series model; membrane performance at 10-d MCRT(F/M=0.50 gCOD/gVSSd); membrane performance at 2-d MCRT(F/M=2.34 gCOD/gVSSd); steady-state membrane fouling rates; membrane resistance terms; RsubF/sub and RsubC/sub from literature; cake resistance Rsubc/sub; batch filtration results; fouled membrane FTIR results; and, conclusions. Includes figures.

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Edition: Vol. - No. Published: 03/01/2005 Number of Pages: 34File Size: 1 file , 990 KB