A device includes a compartment for separating the solids and liquids. The compartment includes a base that is concavely curved according to a cylindrical portion having a transverse axis and is formed of a sieve, an idler roller mounted transversely on an arm, a drive which actuates the arm, and resilient means for adjusting the pressure exerted by the rollers. Both the contact interface between the sieve and the roller and the rotational interface between the roller and the arm are made of a non-metal material on at least one of the two contacting surfaces that form each of the interfaces, such that, there is no metal-on-metal contact between surfaces moving relative to one another at the interfaces.

The present invention relates to filtration of liquids, such as water, containing substances that desirably should be removed from the liquids. The invention relates in particular to a filtration cake, being produced in situ of a cleaning system from substances that desirably should be filtered away. Particular preferred embodiments of the present invention relate to treatment of waste water, where an activated sludge is provided, which sludge contains activated sludge flocs. These flocs are accumulated on a fluid penetrable support structure to form a layer of flocs, which subsequently is compressed to form a filter of desired properties. The invention also relates to adapting waste wateror other liquids containing biodegradable substancesto optimized biodegradation and filtration by deflocculating flocs in an activated sludge during or before a biodegradation step and subsequently promoting re-flocculation prior to filtering or other means of biomass separation.

The present invention relates to filtration of liquids, such as water, containing substances that desirably should be removed from the liquids. The invention relates in particular to a filtration cake, being produced in situ of a cleaning system from substances that desirably should be filtered away. Particular preferred embodiments of the present invention relate to treatment of waste water, where an activated sludge is provided, which sludge contains activated sludge flocs. These flocs are accumulated on a fluid penetrable support structure to form a layer of flocs, which subsequently is compressed to form a filter of desired properties. The invention also relates to adapting waste wateror other liquids containing biodegradable substancesto optimized biodegradation and filtration by deflocculating flocs in an activated sludge during or before a biodegradation step and subsequently promoting re-flocculation prior to filtering or other means of biomass separation.

Disclosed is a solid/liquid separation apparatus including an extruder press combined with a solid/fluid separation module for separating fluid from a mass of solids compressed by the extruder at elevated pressures. The extruder includes two or more extruder screws with flighting intercalated at least along a part of the extruder barrel. The separation module forms a continuation of the barrel, receives the pressurized mass and at least a portion of the twin screws, and includes a filter pack consisting of a filter plate and a backer plate. The filter plate has a throughgoing filter slot extending away from a core opening and into the filter plate for directing fluid away from the core opening. The backer plate has a core opening shaped and sized equal to the barrel and defines a passage for guiding fluid collected in the filter slot to an exterior of the filter pack.

The present invention provides to a filter residue treatment device, comprising a means for supplying a pressurized fluid, a housing comprising a) a first inlet for the introduction of a medium different from the pressurized fluid and comprising a filter residue and b) a second inlet for the introduction of the pressurized fluid and an inflatable or flexible means comprised in the housing and configured and arranged for being operated by the pressurized fluid such that in an inflated or flexed state it pushes the filter residue comprised in the medium introduced through the inlet towards a filter means.

A filtration unit (100) configured to remove microparticles from a water stream from at least one washing machine (WM) is provided. The filtration unit comprises an inlet (110) configured to deliver a water stream (WS) from at least one washing machine (WM), a water reservoir (120) configured to receive the water stream (WS) from the inlet (110), a separator module (130) fluidly connected to the water reservoir (120), wherein the separator module (130) is configured to separate microparticles (MP) from the water stream (WS) creating a filtered water stream (FWS), and an outlet (150) configured to allow the filtered water stream (FWS) to leave the filtration unit (100). A method for removing microparticles from a water stream is also provided.

A filtration unit (100) configured to remove microparticles from a water stream from at least one washing machine (WM) is provided. The filtration unit comprises an inlet (110) configured to deliver a water stream (WS) from at least one washing machine (WM), a water reservoir (120) configured to receive the water stream (WS) from the inlet (110), a separator module (130) fluidly connected to the water reservoir (120), wherein the separator module (130) is configured to separate microparticles (MP) from the water stream (WS) creating a filtered water stream (FWS), and an outlet (150) configured to allow the filtered water stream (FWS) to leave the filtration unit (100). A method for removing microparticles from a water stream is also provided.

Described herein is a method for filtration of a solid-liquid composition. The method may include passing the solid-liquid composition through a filter to form a filter cake on the filter and sonicating the filter cake. A filtration system is also provided for filtering a solid-liquid composition. The filtration system includes a filtration device and a sonication device.

Described herein is a method for filtration of a solid-liquid composition. The method may include passing the solid-liquid composition through a filter to form a filter cake on the filter and sonicating the filter cake. A filtration system is also provided for filtering a solid-liquid composition. The filtration system includes a filtration device and a sonication device.

A reciprocating lamination spiral solid-liquid separator is provided, including: a support frame, a filter chamber, a spiral shaft and a driving device. The filter chamber is assembled with the support frame. The spiral shaft is mounted on the support frame and passes through the filter chamber. The driving device is mounted on the support frame. Two ends of the filter chamber respectively have a feed port and a discharge channel. The filter chamber includes a first closed movable ring-piece assembly and a second closed ring-piece assembly having a motion state that is inconsistent with that of the first closed movable ring-piece assembly. The first and second closed ring-piece assemblies are stacked alternately to form the filter chamber, and a gasket is disposed between two adjacent closed ring-pieces of one of the closed ring-piece assemblies.