The invention describes separation systems and methods for separating solids and liquids from one another. The system includes a rotating screen for supporting a slurry of solids and liquid. A fluid manifold is configured to the lower surface of the screen for applying a downward vacuum force through the screen. A cleaning manifold is configured to the screen for cleaning the screen.

The invention describes separation systems and methods for separating solids and liquids from one another. The system includes a rotating screen for supporting a slurry of solids and liquid. A fluid manifold is configured to the lower surface of the screen for applying a downward vacuum force through the screen. A cleaning manifold is configured to the screen for cleaning the screen.

A fluid cleaning apparatus including: a first volume comprising a first inlet through which a first fluid is introduced and a first outlet through which the first fluid is discharged; a second volume comprising a second inlet through which a second fluid is introduced and a second outlet through which the second fluid is discharged; and a rotating wheel which is provided with a filter for filtering the first fluid, and rotatably positioned within the first volume and the second volume in a direction perpendicular to a flow direction of the first fluid or the second fluid, wherein foreign matter filtered while the first fluid passes through the filter in the first volume is discharged through the second outlet while the second fluid passes through the filter in the second volume, as the rotating wheel rotates.

A fluid cleaning apparatus including: a first volume comprising a first inlet through which a first fluid is introduced and a first outlet through which the first fluid is discharged; a second volume comprising a second inlet through which a second fluid is introduced and a second outlet through which the second fluid is discharged; and a rotating wheel which is provided with a filter for filtering the first fluid, and rotatably positioned within the first volume and the second volume in a direction perpendicular to a flow direction of the first fluid or the second fluid, wherein foreign matter filtered while the first fluid passes through the filter in the first volume is discharged through the second outlet while the second fluid passes through the filter in the second volume, as the rotating wheel rotates.

In one aspect, a filter disk for a device for dewatering sludge includes a screening plate. The screening plate has a plurality of openings for the passage of liquid and is substantially circular. Additionally, the filter disk has a supporting structure for supporting and/or stiffening the screening plate, wherein the supporting structure has at least one annular section.

A fluid cleaning apparatus including: a first volume comprising a first inlet through which a first fluid is introduced and a first outlet through which the first fluid is discharged; a second volume comprising a second inlet through which a second fluid is introduced and a second outlet through which the second fluid is discharged; and a rotating wheel which is provided with a filter for filtering the first fluid, and rotatably positioned within the first volume and the second volume in a direction perpendicular to a flow direction of the first fluid or the second fluid, wherein foreign matter filtered while the first fluid passes through the filter in the first volume is discharged through the second outlet while the second fluid passes through the filter in the second volume, as the rotating wheel rotates.

A fluid cleaning apparatus including: a first volume comprising a first inlet through which a first fluid is introduced and a first outlet through which the first fluid is discharged; a second volume comprising a second inlet through which a second fluid is introduced and a second outlet through which the second fluid is discharged; and a rotating wheel which is provided with a filter for filtering the first fluid, and rotatably positioned within the first volume and the second volume in a direction perpendicular to a flow direction of the first fluid or the second fluid, wherein foreign matter filtered while the first fluid passes through the filter in the first volume is discharged through the second outlet while the second fluid passes through the filter in the second volume, as the rotating wheel rotates.