NOVELTY - Treating wastewater involves providing container (32) including first and second members spaced apart, and media supported by and extending between first and second members, where first member, second member, and media are partially positioned within the container; introducing an organism into the container, where organism is supported on the media; introducing wastewater into the container; submerging the organism and at least a portion of the media in wastewater; and rotating first member, second member and media within the container.    USE - For treating wastewater (claimed) e.g. industry, municipal and domestic sewage, non-toxic wastewater that contains organic nutrients such as protein and sugar laden water from food and beverage processing, packaging, and bottling, land fill leach water, storm water runoff, aquaculture wastewater, hog, cow and other feed lot applications.    ADVANTAGE - The media utilized in the wastewater treatment system facilitates efficient and productive wastewater treatment for a variety of reasons. First, the media is comprised of a material that is suitable for microorganism growth. The media is not composed of a material that hinders growth of or kills the microorganisms. Second, the media consists of a material to which the microorganisms may attach and upon which the microorganisms may rest during their consumption of waste products from the wastewater. Third, the media provides a large amount of dense surface area on which the microorganisms may grow. The significant amount of the space within the housing is occupied by the media, thus establishing efficient use of the cavity within the housing. With a large amount of the microorganisms supported on the media, only small amounts of microorganisms remain suspended in the wastewater. The small amount of microorganisms allows the wastewater to be removed from and reintroduced into the containers, without removal of the microorganisms, for additional treatment processes. Fourth, the large quantity of media within the cavity of the housing acts to inhibit and slow ascent of the gas and oxygen to the top of the housing, thus increasing the amount of time the oxygen resides in the wastewater proximate the microorganisms, and hence increasing the rate at which the microorganisms absorb oxygen and the rate at which the wastewater is treated. Fifth, the media provides protection to the microorganisms supported on it and during extraction of the wastewater from the containers.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of wastewater treatment system.    Wastewater treatment system (20)    Gas management system (24)    Liquid management system (28)    Container (32)    Controller (40)    Gas source (44)    Gas discharge pipe (52)