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 toilet bowl includes a main body defining a urine and feces transfer passage; and a collection member arranged in a first direction from the main body, wherein the main body comprises a urine and feces transfer surface and a urine and feces separation surface arranged in the first direction, wherein the urine and feces separation surface extends along a circumference of the urine and feces transfer passage, and separates mixed urine and feces transferred from the urine and feces transfer surface into liquid urine and feces and solid urine and feces, and wherein the collection member accommodates each of the liquid urine and feces and the solid urine and feces.

An improved portable toilet comprises one or more of a flushing mechanism, a urinal flushing mechanism, a solid/liquid separation system, and/or a door opening mechanism.

An improved portable toilet comprises one or more of a flushing mechanism, a urinal flushing mechanism, a solid/liquid separation system, and/or a door opening mechanism.

There is described a wastewater separator for separating a flow of wastewater. The wastewater separator generally has: an axis: an inlet chamber defined around the axis and having a wastewater inlet defining a vortex: an outlet chamber defined around the axis below the inlet chamber and having a solid outlet and a liquid outlet: an annular neck between the inlet chamber and the outlet chamber and defining an opening at a bottom of the inlet chamber. the inlet chamber tapering to the annular neck and the outlet chamber inverse-tapering from the annular neck: and an assembly of angularly inclined fins circumferentially distributed around the axis and axially located between the annular neck and the solid outlet. the angularly inclined fins having an upper edge in fluid communication with a lower portion of the annular neck and a lower edge circumferentially spaced apart from the upper edge along the vortex.

The invention relates to a method for removing a chemical substance from human excreta, such as faeces and urine, comprising the following steps of: providing a toilet for a person from whose excreta the chemical substance must be removed; releasably connecting a filtering device to the toilet, wherein the filtering device comprises at least one removable cartridge with a filter; transporting the excreta by means of a transport screw from the toilet toward the filter in the cartridge, wherein pressure is exerted on the excreta by means of a plunger; filtering the chemical substance out of the excreta in situ using the filtering device; periodically replacing the at least one cartridge; and processing the replaced cartridge. The invention also relates to a filtering device for application in this method, and a cartridge for use in such a filtering device.

According to this method, the solids are packed together with an air portion into individual bags (63) of an endlessly fed hose and the buoyant bag (63) is hermetically sealed and released into the sewer system. The device for this purpose includes at least the following technical components after the siphon of the WC (100) for treating the siphon outlet within a closed system: a solids separation tank (3) for collecting the solids, a solids pump (28) for conveying the separated solids upwards in a riser pipe (4) into a high-level solids tank (5), a portioning device (6) with a dosing valve (7) for dropping portions of solid material into a tubular bag packaging unit (9) arranged underneath, a tubular bag packaging unit (9) for producing hermetically sealed and subsequently separated bags (63) with solids and an air content from an endlessly fed tube, for discharge into the sewage system.

According to this method, the solids are packed together with an air portion into individual bags (63) of an endlessly fed hose and the buoyant bag (63) is hermetically sealed and released into the sewer system. The device for this purpose includes at least the following technical components after the siphon of the WC (100) for treating the siphon outlet within a closed system: a solids separation tank (3) for collecting the solids, a solids pump (28) for conveying the separated solids upwards in a riser pipe (4) into a high-level solids tank (5), a portioning device (6) with a dosing valve (7) for dropping portions of solid material into a tubular bag packaging unit (9) arranged underneath, a tubular bag packaging unit (9) for producing hermetically sealed and subsequently separated bags (63) with solids and an air content from an endlessly fed tube, for discharge into the sewage system.