There is provided a method of desanding a production flow with at least liquid and solid phases. An inlet is connected to a flow line of a sand trap body having a first filter housing defining a first bore and a plurality of second filter housings defining second bores each connected to the first filter housing at spaced intervals transverse to and in fluid communication with the first bore. The flow path between the stand trap inlet and outlet is defined by the first and second housings. A primary filter is inserted into each of the second bores, the production flow is flowed through the sand trap body such that the production flow is filtered by the primary filters, and then a secondary filter is inserted into the first bore. The mesh size of the primary filters is finer than or equal to the mesh size of the secondary filter.

System and method for collection and separation of human waste are described. The system can include a vessel (102) configured to receive human waste and a solids separator (106). The solids separator can include a vacuum tank as well as an inlet chamber formed within the vacuum tank at the top portion, a solids containment portion formed in the base of the vacuum tank and positioned centrally within the vacuum tank, a liquid containment portion formed in the base of the vacuum tank and contained within the vacuum tank surrounding the solids containment portion, and a separating filter having a cylindrical tubular shape and extending from the inlet chamber outlet to the solids containment portion. The separating filter forming a central separation volume within the vacuum tank. The inlet chamber is configured to receive the combined waste via an inlet (132) and to direct the combined waste to the central separation volume. The liquid portion of the combined waste allowed to flow through the separating filter to an outer portion surrounding the central separation volume and to collect in the liquid containment portion of the base. The solids portion of the combined waste contained within the central separation volume and collected in the solids containment portion of the base.

A vertical separator for the treatment of slurry. The vertical separator comprises: a screen device, with a vertical axis, provided with a screen; a feeding device, provided with a pump, to feed the slurry to a screen device; a discharge device for the liquid part; and a discharge device for the solid particles. The screen device houses a counter-pressing device (e.g. a screw, which is designed to generate a reaction, which partially counters the pushing action exerted by the pump upon the slurry.

A food processing apparatus includes a tank defining an inner compartment having an inlet end for receiving food product and an outlet end for discharging food product, an open-top screen mounted within the compartment and positioned relative to the tank in a first position, and a rotatable auger mounted such that at least a portion of the auger is within the screen for advancing food product within the tank from the inlet end of the tank toward the outlet end.

An Archimedes screw plant for separating slurry includes a tubular sifting device; a slurry feeding device; a device for evacuating the liquid fraction; and a device for evacuating the substantially dry separated solid. The device includes an upper compaction chamber of the separated solid where a solid plug of product is formed. In addition, the tubular sifting device has an upper opening being provided with an auxiliary contrast element for forming the solid plug of product.