Abstract
A simple kinetic model of the fluidized-bed biofilm reactor is developed based on biological and hydrodynamical knowledge. In order to account for the removal of algae from the lake water, model includes the process in which particulate substrates (algae) attach to and detach from the surface of biofilm-coated medium grain , as well as the processes of biofilm growth and detachment. The result shows that the model can describe the variations of the chlorophyll-a removal in the experiment at Lake Kasumigaura during 1996-1997. Some effects of attachment and detachment processes on the performance of the reactor were examined.
