The MBR membrane module is a process that is a combination of membrane filtration and biological wastewater treatment. Environmental pollution is reduced by using microorganisms and bacteria. We use a biological treatment in which the activated sludge is parted from preserved water through an ultrafiltration membrane. The MBR process includes an activated sludge system with suspended growth that integrates a microporous hollow fiber membrane (which is flat) in modules for liquid or solid separation. The hollow fibers are mounted in a vertical order in modules and are immersed in the activated sludge tank. Application of vacuum is done for permeating manifold which then draws water inside the hollow fiber membranes from the reactor side and then taken out from the system. The point that makes this module stand out is that secondary clarifiers are not needed at all.
Kinds of MBR systems
There are 2 kinds of MBR systems which are:
- Vacuum (or gravity-driven): These structures are submerged and usually use flat sheet membrane or hollow fiber in membrane tanks or bioreactors.
- Pressure-driven: They are externally located to the bioreactor and an in-pipe cartridge system.