USE MEMBRANE BIOREACTOR FOR WASTEWATER TREATMENT

The operation of MBR with high flow is one of the main problems of this system of wastewater treatment. To achieve this purpose it is necessary to study and optimize the parameters of operation. This study aimed to test the functionality of an MBR in treating synthetic wastewater and, through methodologies of experimental design to study two key parameters for the operation of MBR: PTM and TSS concentrations in activated sludge. Thus, were selected three new membranes (all from the same fabrication lot), it was made the compactation of the membranes and subsequently varying the pressure (0.3 to 1.5 kgf/cm(2)) it was done water permeability and activated sludge permeability (concentrations of 5, 10 and 15 g/L TSS). From the results observed dates were tabulated and analyzed by ANOVA. The fit was great with activated sludge 10 g/L of TSS and TPM 0.6 kgf/cm(2). Besides, it was also seen different permeability among membranes from the same fabrication lot. Treatment of synthetic wastewater with MBR showed high efficiency, achieving reductions of more than 95% for COD and turbidity.