What is MBBR Media?

MBBR media is a fluidized bed media. It utilizes three-dimensional hollow media as aerobic biological carriers in the aerobic biological fluidized bed process, with the fluidized bed media having a hollow structure. The media float in the water during normal operation. Anaerobic bacteria grow within the media, producing denitrification, which can remove nitrogen; aerobic bacteria grow on the exterior, removing organic matter. Both nitrification and denitrification processes are present throughout the entire treatment process.

The fluidized bed media made of copolymer materials does not degrade when soaked in water for extended periods and is non-toxic to microorganisms, outperforming materials like polyvinyl chloride.

The fluidized bed's packing structure is rather unique, featuring three concentric hollow circles, both inside and outside, with each circle containing a ridge on the inside and outside.36 facets. After numerous research and development efforts, the successful molding has been achieved. The fluidized bed packing has a high specific surface area, with the specific surface area of common microorganisms ranging from 90-180, while the fluidized bed packing boasts a specific surface area of 600, exceeding 860. Due to the high specific surface area, the biomass per unit volume is high, enabling a short hydraulic retention time. The microbial biofilm growing on the surface of the packing is due to the fluidized bed collisions. Aeration scouring keeps the microorganisms in a highly active logarithmic growth phase, resulting in high treatment efficiency.