A method for producing a screen body for a screen used in a screw press, which screen body comprises one or more openings on a screen surface. In order to achieve a particularly long service life, it is provided that the screen body is formed by a sintering process and/or an additive manufacturing process, in particular a 31) printing process. Further embodiments include a screen, in particular for a screw press, having a screen body Which has openings on a screen surface.

A method for producing a screen body for a screen used in a screw press, which screen body comprises one or more openings on a screen surface. In order to achieve a particularly long service life, it is provided that the screen body is formed by a sintering process and/or an additive manufacturing process, in particular a 31) printing process. Further embodiments include a screen, in particular for a screw press, having a screen body Which has openings on a screen surface.

A filtering system (10) includes a casing (12) internally defining a cavity (14) and has an inlet (16) configured to receive a fluid and leading into the cavity (14), and an outlet (18) configured to deliver the fluid coming from the cavity (14). A filtering assembly (100) is contained in the cavity (14) and is configured to be crossed by the fluid entering the casing (12) through the inlet (16), so as to trap any solid particles, in particular microplastic ones, contained in the fluid. A compacting assembly (200) situated in the cavity (14) is configured for collecting and compacting the solid particles trapped by the filtering assembly (100). A driving assembly (300) is configured to drive the compacting assembly (200).

A filtering system (10) includes a casing (12) internally defining a cavity (14) and has an inlet (16) configured to receive a fluid and leading into the cavity (14), and an outlet (18) configured to deliver the fluid coming from the cavity (14). A filtering assembly (100) is contained in the cavity (14) and is configured to be crossed by the fluid entering the casing (12) through the inlet (16), so as to trap any solid particles, in particular microplastic ones, contained in the fluid. A compacting assembly (200) situated in the cavity (14) is configured for collecting and compacting the solid particles trapped by the filtering assembly (100). A driving assembly (300) is configured to drive the compacting assembly (200).

A laminated spiral dewatering equipment, including a filtration cavity, a spiral shaft, a driving device and multiple supporting plates. The supporting plates are configured to support and position the filtration cavity, the spiral shaft and the driving device. The spiral shaft is penetratedly arranged in the filtration cavity. The filtration cavity includes a first closed ring piece group and a second closed ring piece group. A primary driving rod of the driving device is arranged above the filtration cavity, and is configured to drive an upper end of the first closed ring piece group to circumferentially reciprocate, and a lower end of the first closed ring piece group to perform a up-down reciprocating linear motion.

A laminated spiral dewatering equipment, including a filtration cavity, a spiral shaft, a driving device and multiple supporting plates. The supporting plates are configured to support and position the filtration cavity, the spiral shaft and the driving device. The spiral shaft is penetratedly arranged in the filtration cavity. The filtration cavity includes a first closed ring piece group and a second closed ring piece group. A primary driving rod of the driving device is arranged above the filtration cavity, and is configured to drive an upper end of the first closed ring piece group to circumferentially reciprocate, and a lower end of the first closed ring piece group to perform a up-down reciprocating linear motion.

A system for the disposal of liquid waste includes a portable container body having an open interior and a liquid waste inlet for receiving liquid waste containing solids. A liquid waste holding tank is provided within the open interior of the portable container body for receiving the liquid waste from the liquid waste inlet. A liquid-solid separator within the open interior of the portable container body produces a solid waste and a separated liquid waste. A conduit directs the liquid waste from the liquid waste holding tank to the liquid-solid separator. An evaporator within the open interior of the portable container body heats the separated liquid waste to evaporate and remove water from the separated liquid waste as water vapor and produces a concentrated liquid waste. A safety containment system prevents the liquid waste from escaping to the environment. A method for disposing of liquid waste is also disclosed.

A system for the disposal of liquid waste includes a portable container body having an open interior and a liquid waste inlet for receiving liquid waste containing solids. A liquid waste holding tank is provided within the open interior of the portable container body for receiving the liquid waste from the liquid waste inlet. A liquid-solid separator within the open interior of the portable container body produces a solid waste and a separated liquid waste. A conduit directs the liquid waste from the liquid waste holding tank to the liquid-solid separator. An evaporator within the open interior of the portable container body heats the separated liquid waste to evaporate and remove water from the separated liquid waste as water vapor and produces a concentrated liquid waste. A safety containment system prevents the liquid waste from escaping to the environment. A method for disposing of liquid waste is also disclosed.

The invention proposes a rotary filter intended for liquid/solid separation of a suspension, comprising a trough, a spraying device, and at least one disk which is non-rotatably connected to a main shaft, characterized in that: each disk comprises a first series of at least one filter sector which is separated from a second series of at least one filter sector by means of two non-filtering zones, the main shaft comprises a first pipe which communicates with the first series of at least one filter sector of each disk, and a second pipe which communicates with the second series of at least one filter sector of each disk, said rotary filter comprises comb teeth.

The invention also proposes a filtration method.

The invention proposes a rotary filter intended for liquid/solid separation of a suspension, comprising a trough, a spraying device, and at least one disk which is non-rotatably connected to a main shaft, characterized in that: each disk comprises a first series of at least one filter sector which is separated from a second series of at least one filter sector by means of two non-filtering zones, the main shaft comprises a first pipe which communicates with the first series of at least one filter sector of each disk, and a second pipe which communicates with the second series of at least one filter sector of each disk, said rotary filter comprises comb teeth.

The invention also proposes a filtration method.