Views: 27 Author: Site Editor Publish Time: 2021-09-01 Origin: Site
In the field of sewage treatment and water resources reuse, MBR, also known as membrane bio reactor, is a new water treatment technology combined with membrane separation unit and biological treatment unit.
Membrane bio reactor (MBR) is a new type of wastewater treatment system with the organic combination of membrane separation technology and biological treatment technology. Membrane modules are used to replace the terminal secondary sedimentation tank of traditional biological treatment technology, maintain high activated sludge concentration in the bioreactor and improve the organic load of biological treatment, so as to reduce the floor area of sewage treatment facilities and reduce the amount of excess sludge by maintaining low sludge load. Membrane separation equipment is mainly used to intercept activated sludge and macromolecular organic matter in water. The concentration of activated sludge (MLSS) in the membrane bioreactor system can be increased to 8000 ~ 10000mg / L or even higher; the sludge age (SRT) can be extended to more than 30 days.
Because of its effective interception, membrane bioreactor can retain microorganisms with long generation cycle and realize deep purification of sewage. At the same time, nitrifying bacteria can fully reproduce in the system, with obvious nitrification effect, which makes it possible for deep phosphorus and nitrogen removal.
