ROTATING BIOLOGICAL FILTER SYSTEM

摘要

An aquatic filter system (10) having a rotatably mounted cylindrical filter body (26). The cylindrical filter body is formed by a water absorbing mass of material (24). Water applied to one side of the filter body unbalances the filter body which causes the filter body to rotate. As a result of the rotational movement, at least a portion of the filter body is alternately exposed to the water and the atmosphere to foster the growth of aerobic bacteria on the surfaces of the filter body.