Membrane Bioreactor (MBR)

MBR is a combination of two basic processes – biological degradation and membrane separation

BACKGROUND:


DEFINITION:


MBR is a combination of two basic processes – biological degradation and membrane separation – into a single process where suspended solids and microorganisms responsible for biodegradation are separated from the treated water by membrane filtration unit.


GENERAL OPERATION:


The influent enters the bioreactor, where it is brought into contact with the biomass. The mixture is pumped from the bioreactor and filtered through the membrane. The permeate is discharged from the system while the entire biomass is returned to the bioreactor. Excess sludge is pumped out in order to maintain a constant sludge age and the membrane is regularly cleaned by backwashing with occasional chemical washing.

The entire biomass is confined within the system, providing both perfect control of the residence time for the microorganism in the reactor (sludge age) and the disinfection of the effluent.


Advantages Over Other Biological Processes


CONVENTIONAL ACTIVATED SLUDGE VS MBR PROCESS



TYPICAL MEMBRANE BIOREACTOR PROCESS DESIGN




CERAFLO® MEMBRANE BIOREACTOR



Advantages of Immerse System


  • Higher flux with smaller footprint
  • Power consumption reduced with less pumps
  • Does not need recirculation or separate tank for biomass separation
  • Using ceramic membranes reduces backwashing and CIP cycle

  • Click to download brochure