MBR Membrane Bio-Reactor

A Membrane Bio-Reactor (MBR) is an advanced wastewater treatment process that combines biological treatment with membrane filtration. It involves the use of fine-pore membranes to separate suspended solids, microorganisms, and other contaminants from the treated water. In an MBR system, the wastewater is first subjected to biological treatment in a bioreactor. This typically involves the introduction of microorganisms (activated sludge) that biodegrade organic matter and remove pollutants through their metabolic activities. The bioreactor provides an environment for the microorganisms to thrive and efficiently break down the wastewater constituents.

The mixed liquor, consisting of wastewater and suspended biomass, is then brought into contact with the membranes. The membranes act as a physical barrier, allowing only treated water (permeate) to pass through while retaining the suspended solids, microorganisms, and other particles (biomass). The filtration process effectively removes particles, bacteria, viruses, and even dissolved substances, resulting in high-quality effluent.