This study clearly outlines the performance of the SMBR system
in treating cosmetic wastewater. The SMBR treatment managed to
remove 98.13% of AS and 83.73% of COD at OLR of 1.5 g COD l-1 d-1
and HRT of 27 h. Higher organic loading have strong effect on
membrane fouling and the MBR removal efficiency.
The PCR-DGGE method provided insights regarding the structures
and dynamics over six months of bacterial communities of
the bioreactor. The results indicated that bacterial community
structures changed obviously during the treatment period and
most of the identified bacterial sequences belonged either to surfactant
degrading microorganisms or biofouling communities in
membrane separation systems.