Patent ID: 11883764
Assignee: EVOQUA WATER TECHNOLOGIES LLC
Field: Chemical engineering (Chemistry)
Classification: CPC B  Y | IPC B

Claim 9:
10. A wastewater treatment system, comprising:
a clarifier having an inlet fluidly connectable to a source of a mixed liquor and an effluent outlet and comprising a center shaft positioned upright in the clarifier;
a wasting pipe having an inlet and an outlet fluidly connectable to a waste conduit;
a manifold having an inlet and an outlet fluidly connected to the wasting pipe inlet;
an upper header extending radially from the center shaft positioned within a disperse sludge zone of the clarifier and comprising a conduit having a flocculant sludge inlet and an outlet fluidly connected to the manifold inlet, the upper header being positionable at an adjustable height along the center shaft;
a controller configured to direct the upper header along the center shaft;
a return sludge well having an inlet and an outlet fluidly connectable to the source of the mixed liquor;
a return sludge pipe having an inlet and an outlet fluidly connectable to the return sludge well; and
a lower header extending radially from the center shaft positioned within a settled sludge zone of the clarifier and comprising a conduit having a settled sludge inlet and an outlet fluidly connected to the return sludge pipe inlet.