Wastewater aeration system with lift out lateral pipes and diffusers
AssigneeEnvironmental Dynamics, Inc.
InventorRandall C. Chann
Life of this patent
Estimating the term…
Abstract
A wastewater aeration system that can be pivoted upwardly to expose the treatment basin floor for removal of accumulated grit or other solids. The aeration system includes a blower and a rigid or flexible supply conduit extending into the basin to supply lateral pipes with air. The laterals normally extend horizontally along the basin floor and carry air diffusers which discharge air into the basin. A winch and cable system or other mechanism can be operated to pivot the lateral pipes and diffusers upwardly away from the basin floor so that they are out of the way of equipment used to remove grit from the floor. A vertical track may be provided along a wall of the basin to accommodate raising of the lateral pipes and diffusers out of the basin.
Claims24
An aeration system for aerating liquid contained in a basin having a floor, said aeration system comprising:
- a plurality of lateral pipes each having one end portion connected with an air supply, each lateral pipe being pivotal at said one end portion about a generally horizontal axis between an operating position wherein each lateral pipe extends generally along the basin floor and a maintenance position wherein each lateral pipe extends generally upwardly from said axis;
- and
- a plurality of diffusers mounted on each lateral pipe to receive air therefrom and discharge the air in the operating position of each lateral pipe, whereby the lateral pipes and diffusers can be displaced from the floor area to expose the floor in the maintenance position of each lateral pipe.
A wastewater treatment system for aerating wastewater in a basin having a floor, comprising:
- an air supply operable to provide a supply of air;
- a supply pipe receiving air from said air supply and extending into the basin;
- a plurality of lateral pipes each connected with said supply pipe to receive air therefrom and each pivotal about a substantially horizontal pivot axis between an operating position wherein said lateral pipes extend generally along the floor and a maintenance position wherein said lateral pipes are raised substantially off of the floor;
- a plurality of diffusers on each lateral pipe receiving air therefrom and discharging air into the basin in the operating position of the lateral pipe;
- and
- means for pivoting each lateral pipe between the operating and maintenance positions.
In a wastewater treatment system for aerating wastewater in a basin in which diffusers discharge air into the wastewater and receive air from a plurality of lateral pipes on which the diffusers are mounted, the improvement comprising:
- a pivot connection for each lateral pipe allowing each lateral pipe to pivot about a substantially horizontal axis between an operating position wherein the lateral pipe extends generally along a floor of the basin and a maintenance position wherein the lateral pipe and the diffusers thereon are substantially removed from the floor area to leave the floor exposed;
- and
- a power mechanism operable to pivot each lateral pipe between the operating and maintenance positions.
Dependencies are inferred from the claim text.