Filter system with gas agitation
AssigneeMunicipal Filtration Company, LLC
InventorKurt M. Lindsley
Life of this patent
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Abstract
A wastewater filter assembly comprising a filter having an influent side and an effluent side, a backwash system adapted to control flow of backwash fluid from the effluent side to the influent side, and an agitation system adapted to control the flow of an agitating fluid (e.g., air) from the influent side to the effluent side. In one embodiment, the agitation system includes an agitating tank that stores the agitating fluid, and a series of valves to control the flow of backwash fluid and agitating fluid. In another embodiment, the assembly further includes a control system that controls the backwash system and the agitation system. Preferably, the control system is programmed to pulse the agitation system during operation of the backwash system.
Claims12
A wastewater filter assembly comprising:
- a filter having an influent side and an effluent side, the filter being positioned to filter influent to produce effluent;
- a backwash system adapted to control flow of backwash fluid from the effluent side to the influent side;
- an agitation system having an aperture positioned on an influent side of the filter and at a level below at least a portion of the filter and adapted to control the flow of agitating fluid from the influent side to the effluent side, wherein the agitating fluid is less dense than the wastewater being filtered;
- and
- a control system programmed to control the backwash system and the agitation system in such a manner that the flow of backwash fluid flows in a first direction through the filter while the agitating fluid flows in a second direction through the filter opposing the first direction.
A wastewater filter assembly comprising:
- a filter having an influent side and an effluent side, the filter being positioned to filter influent to produce effluent;
- a backwash system adapted to control a flow of backwash fluid from the effluent side to the influent side;
- an agitation system adapted to control a flow of agitating fluid wherein the agitating fluid is less dense than the wastewater being filtered;
- and
- a control system programmed to control the backwash system and the agitation system in such a manner that the flow of backwash fluid flows in a first direction through the filter while agitating fluid flows in a second direction through the filter opposing the first direction.
Dependencies are inferred from the claim text.