Operation Strategies And Mechanism For Shortening The Start-Up Period Of Self-Forming Dynamic Membrane Bioreactors (Sfdmbrs)

This paper presents the effect of membrane permeate flux and backwash interval on the dynamic layer formation in self-forming dynamic membrane bioreactors (SFDMBRs). The basis of evaluation looked at effluent turbidity, effluent particle size distribution, trans-filter pressure (TFP) and dynamic layer properties. The start-up period of a SFDMBR can be largely affected by the correlation between activated sludge floc particle size and the supporting material pore size. On the contrary, the start-up is hardly to be completed in several days when the pore size of the supporting material is equal to the average particle size of activated sludge.