A method of cleaning a regenerative filter having a filter housing having inlet and outlet zones, a fluid path provided between the inlet and outlet zones, and a plurality of filter elements each having an outer surface filter media applied thereto and functioning to filter particulate or contaminants from the fluid path, the method comprising draining all fluids from the filter housing, refilling the filter housing with fluid to an optimum level, and initiating a cleaning sequence of the filter housing with the fluid at the optimum level. The cleaning sequence can comprise agitating the tube sheet, initiating a pump to effectively air scour for a first predetermined amount of time, dwelling for a second predetermined amount of time, and repeating the agitating, initiating, and dwelling until a third predetermined amount of time is complete.

A method of cleaning a regenerative filter having a filter housing having inlet and outlet zones, a fluid path provided between the inlet and outlet zones, and a plurality of filter elements each having an outer surface filter media applied thereto and functioning to filter particulate or contaminants from the fluid path, the method comprising draining all fluids from the filter housing, refilling the filter housing with fluid to an optimum level, and initiating a cleaning sequence of the filter housing with the fluid at the optimum level. The cleaning sequence can comprise agitating the tube sheet, initiating a pump to effectively air scour for a first predetermined amount of time, dwelling for a second predetermined amount of time, and repeating the agitating, initiating, and dwelling until a third predetermined amount of time is complete.

Embodiments relate generally to a self-cleaning filter. A filter may include a tube comprising perforations. The tube may be configured to receive a flow of a liquid from a first direction or a flow of a gas from a second direction opposite to the first direction. The filter may also include a filter media positioned concentrically around the tube, and spacers positioned between the tube and the filter media to create a space between the tube and the filter media. A portion of the filter media is configured to flex inward into the space during the flow of liquid into the filter, and flex outward from the space during the flow of gas exiting the filter.

A filter module for binding particles from a particle-laden material mixture, in particular from an aerosol or from a particle-laden fluid, is provided. The approach of deforming an open-pored medium, in particular periodically, by means of a relative motion relative to a deformation unit and in this way producing a motion of the material mixture to be filtered through the open-pored medium is provided, whereby the material mixture is filtered by the open-pored medium. According to an embodiment, a cylindrical open-pored medium is introduced, together with a deformation unit, into a cylindrical housing and said open-pored medium can be deformed geometrically, in particular periodically, preferably at least along the cylinder axis of the housing and/or in the radial direction, by means of the deformation unit. According to an embodiment, a plurality of filter elements are arranged adjacent to each other with respect to the longitudinal extent thereof and are deformed with respect, to the longitudinal extent thereof periodically, preferably in an undulating manner, in particular substantially sinusoidally, wherein the deformation motions of the filter elements are phase-shifted with respect to each other.

A filter module for binding particles from a particle-laden material mixture, in particular from an aerosol or from a particle-laden fluid, is provided. The approach of deforming an open-pored medium, in particular periodically, by means of a relative motion relative to a deformation unit and in this way producing a motion of the material mixture to be filtered through the open-pored medium is provided, whereby the material mixture is filtered by the open-pored medium. According to an embodiment, a cylindrical open-pored medium is introduced, together with a deformation unit, into a cylindrical housing and said open-pored medium can be deformed geometrically, in particular periodically, preferably at least along the cylinder axis of the housing and/or in the radial direction, by means of the deformation unit. According to an embodiment, a plurality of filter elements are arranged adjacent to each other with respect to the longitudinal extent thereof and are deformed with respect, to the longitudinal extent thereof periodically, preferably in an undulating manner, in particular substantially sinusoidally, wherein the deformation motions of the filter elements are phase-shifted with respect to each other.

Filter vaults are shown and disclosed. In some embodiments, the filter vault includes an at least partially impervious and at least partially submersible filter housing. The housing includes an inlet opening that permits unfiltered wastewater having suspended solids to enter the housing. The filter vault further includes a filter assembly. The filter assembly includes one or more filter elements positioned within the housing. Each of the filter elements includes an upper end and a lower end. Each of the filter elements includes a filtering surface that is exposed to the unfiltered wastewater. The inlet opening allows accumulated solids from said filtering surface to exit said housing.

Filter vaults are shown and disclosed. In some embodiments, the filter vault includes an at least partially impervious and at least partially submersible filter housing. The housing includes an inlet opening that permits unfiltered wastewater having suspended solids to enter the housing. The filter vault further includes a filter assembly. The filter assembly includes one or more filter elements positioned within the housing. Each of the filter elements includes an upper end and a lower end. Each of the filter elements includes a filtering surface that is exposed to the unfiltered wastewater. The inlet opening allows accumulated solids from said filtering surface to exit said housing.

A disc filter including a stack of apertured filter discs arranged about an axis, the stack having an outer surface and an inner surface and being mounted such that during backflush, individual discs are rotatable relative to adjacent discs about the axis and a disc cleaning assembly operative to rotate at least some of the discs about the axis relative to others of the discs, the disc cleaning assembly including at least one first fluid conduit for producing at least one outer liquid jet directed generally tangentially into engagement with the outer surface of the stack for rotationally driving the at least some of the discs about the axis relative to others of the discs and at least one second fluid conduit for producing at least one inner backflushing liquid jet directed into engagement with the inner surface of the stack.

A disc filter including a stack of apertured filter discs arranged about an axis, the stack having an outer surface and an inner surface and being mounted such that during backflush, individual discs are rotatable relative to adjacent discs about the axis and a disc cleaning assembly operative to rotate at least some of the discs about the axis relative to others of the discs, the disc cleaning assembly including at least one first fluid conduit for producing at least one outer liquid jet directed generally tangentially into engagement with the outer surface of the stack for rotationally driving the at least some of the discs about the axis relative to others of the discs and at least one second fluid conduit for producing at least one inner backflushing liquid jet directed into engagement with the inner surface of the stack.

The insert with a rotating mesh for aerators in sanitary fixtures consists of the housing (1) of an insert, the rotating screen (5) and o-ring (6). The housing (1) of an insert has at its bottom part i.e. at the water outlet of the sanitary fixture, two bearings (2) made, the rim (4) for installing a flat sealing between the sanitary fixture and the body of aerator. The rotating mesh (5) has on its rim circumference, preferentially at the most extended part of the rotating mesh (5), i.e. at the extension of diameter of the mesh (5) two axles (7) positioned which fit into the bearings (2) in the housing (1) of the insert, and serve for axle fixing the rotating mesh (5) and thus enabling the rotation of the rotating mesh (5) around the axles (7); the rotating mesh (5) has on its outer circumference, in the upper part, a groove (11) cut, in which o-ring seal (6) is installed for sealing the rotating mesh (5) to the housing (1) of the insert. Optionally, the rotating mesh (5) can include on its circumference, i.e. at the water outlet of the sanitary fixture, also the intake channel (15) for air supply. The intake of air for aeration is provided from the bottom side laterally. Optionally a rotating mesh can be installed directly in the aerator's body without an insert. In this context, the rotating mesh (5) is fixed axially with two screws (12) directly in the body (13) of the aerator in a way that it is rotatable around its axis.