Fluidized Bed for Biological Wastewater Treatment

The fluidized bed system is a new method for the biological removal of carbonaceous BOD, nitrification, and denitrification of wastewaters. The theory developed provides a method for determining the design and operating parameters of the fluidized bed process for the removal of carbonaceous BOD. The theory can be used to determine the optimal operational conditions of the system. The fluidized bed system offers a much higher surface area per unit volume of reactor on which the microorganisms grow, and, therefore, it can operate with much higher concentrations of biological mass than other systems. As a result, the fluidized bed system requires considerably less space and lower construction costs than others, and it should be considered as a welcome addition to the variety of wastewater treatment systems available.