Rotating biological waste treatment system

摘要: A rotary disc waste treatment unit having a semicylindrical tank into which liquid material is fed. An axial sleeve shaft has end plugs to plates are threadably bolted and in turn carry stub shafts received bearing supports on opposite sides of the tank. plurality radially extending channel members provided with inner outer bolt means through members, plates, styrofoam discs alternately disposed ring spacers; ends engaging while mating contact discs. series units may be secured together weirs between control flow fluid from one next all driven by common motor at low rate speed give maximum exposure atmosphere. The spacer rings sufficiently buoyant offset weight minimize power requirements.