This technology provides cost-effective treatment with minimal maintenance since MBBR processes self-maintain an optimum level of productive biofilm. Additionally, the biofilm attached to the mobile bio carriers within the system automatically responds to load fluctuations.
Process performance independent of the secondary clarifier
Activated sludge systems use recirculated sludge to increase their SRT. However, if there are issues in the separation that occurs in the clarifier, the return sludge can be of lower quality and affect the performance of the reactor. This is not an issue in MBBR systems because there is no need for recirculation being that it is a fixed-film system.
Improved settling characteristics
How well the reactor effluent settles in the clarifying tank can affect the quality of the treated water. This can be an issue in certain other biological treatment systems, but MBBR systems and their combined fixed film and suspended media qualities ensure that the solids settle out well, with little to no turbidity in the supernatant and low water content in the sludge.