Rotating biological waste treatment system

Abstract

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

Inventors

• 👤 Robert H Joost

Bibliographic Details