What is the typical rotational speed range of a RBC?

The typical rotational speed range of a Rotating Biological Contactor (RBC) is in the range of 1.0 to 1.6 rpm. This low rotational speed is designed to ensure that the attached biofilm on the media is submerged sufficiently to promote microbial growth while allowing for proper aeration. At these speeds, the media can effectively rotate through the wastewater, facilitating the necessary biological processes for treating sewage and organic waste.

The slower rotation also minimizes shear stress on the biofilm, allowing it to thrive and efficiently break down contaminants. This balance of speed helps maintain the health of the microorganisms, which is essential for effective wastewater treatment. The selected range reflects standard operational practices in maintaining optimal conditions for wastewater treatment in RBC systems.