What is MBR System?
MBR stands for Membrane bioreactor. It is a system that helps to filter and purify the water. MBR system wastewater treatment is a biological process of water cleanliness in which filth and chemicals are separated from the polluted water. This is process is used for industrial water treatment and not for the households and all.
The popularity of the MBR system has increased to a greater extent in the past 10 years. This wastewater treatment is an economical option compared to other treatment processes.
Nowadays, six membrane bioreactors are used for wastewater treatment i.e. microfiltration, ultrafiltration, nanofiltration, reverse osmosis, electrodialysis, and dialyses. The wastewater treatment processes are classified on the basis of membrane separation mechanism and size, membrane configuration and material, and the type of separation driving forces. The pore size of microfiltration ranges between 0.1-0.2 µm, 0.002-0.1 µm for ultrafiltration, and 0.0001-0.001 µm for nanofiltration and reverse osmosis. These four types of membranes depend on hydraulic pressure differences for driving the separation process. Microfiltration and ultrafiltration membrane system are the widely used MBR system wastewater treatments. UF is capable of removing virus whereas MF removes bacteria, turbidity, and protozoa.