A waterless urinal comprises a receptacle, a lid assembly, and a pipe. The receptacle comprises an inner body and truncated-conical outer body; a leakproof liquid storage chamber is defined between inner and outer bodies. The lid assembly is movably attached to receptacle and comprises a pump spray assembly in fluid communication with the liquid storage chamber and distributes a cleaning solution drawn from the liquid storage chamber to the receptacle in a fine mist. The pipe supports the receptacle and lid assembly and in fluid communication with the receptacle and waste line of a bathroom fixture at a position upstream of a water trap. The waterless urinal may be adapted for female users. A method for installing the waterless urinal to a bathroom fixture is also provided, and a tailpiece may be used to replace a drain line for retrofitting the fixture with the waterless urinal.

Provided in embodiments of the present disclosure is a urinal, comprising a urinal body. The urinal body comprises: a nozzle and a water inlet; and a flushing surface that comprises a front surface which is opposite to a person when in use. The urinal body is characterized in that the front surface of the flushing surface comprises a curved surface of steepest descent, the curved surface of steepest descent using the shape of a curve of steepest descent presented by a contour obtained by cross-cutting via a horizontal plane. The urinal in embodiments of the present disclosure has a large flushing area and a good anti-overflow effect, can be used under a working condition with relatively low water pressure, and consumes a small amount of flushing water a time, thereby saving water resources.

A toilet-attachable urinal device is provided. The device is designed to minimize urine splashes, enhance bathroom hygiene, and reduce bathroom cleaning efforts. The device comprises a funnel with a flared top opening for urination, tapering to a second end that connects to antimicrobial, flexible tubing. The tubing directs urine into the toilet bowl via a flared spout optimized for splash-free drainage. The funnel and tubing are constructed from durable, odor-resistant materials with antimicrobial coatings to prevent bacterial growth. The device is mounted using fasteners, including a primary fastener for secure attachment to the toilet and secondary fasteners to stabilize the tubing. A self-cleaning mechanism, activated by a button, sprays water through the funnel and tubing using a pump connected to the toilet's water supply, ensuring cleanliness.

A urinal apparatus for facilitating urination from a standing position includes a base. A column is mounted to the base and comprises an upper member and a bottom member. The upper member is slidably coupled to the lower member such that the column is telescopically extendable. The upper member is securable to the lower member at various positions to adjust a length of the column. A bowl is coupled to the column opposite the base. The bowl defines a cavity for collecting urine. A tube is mounted in the column and is in fluid communication with the cavity of the bowl at a top end thereof. The tube is open at a bottom end thereof and is configured to drain the urine away from the column through the bottom end.

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.

Described is a system for waterless urinal cartridge usage determination and indication. The system comprises a measuring device for measuring a consumption factor. The consumption factor represents a usage measure of a waterless urinal cartridge. The system further includes an indicator for signaling/indicating when the consumption factor reaches a predetermined threshold. The consumption factor can be time-based, use-based, frequency-based, or physical characteristic-based. The system can also include a detector for detecting a use of the urinal cartridge. The detector communicates with the measuring device to provide use information to the measuring device. The predetermined threshold can help an operator of a urinal using a waterless urinal cartridge in determining when to replace the cartridge.

Disclosed is a method for water saving by retrofitting an institutional plumbing fixture having a combination of an integral lavatory basin and a toilet bowel integrally attached thereto by inserting into the fixture a urinal-type collection receptacle having a water inlet opening on its top side and a water outlet opening on its bottom side; and fluidly interposing the receptacle via the inlet and outlet openings between the lavatory drain pipe and the drain trap provided for the plumbing fixture. Also disclosed is an institutional plumbing fixture retrofit for water saving, and a retrofit urinal-type receptacle.

A urinal attachment for a toilet comprises a receptacle defining an interior cavity and a front aperture for receiving urine, a cover removably attached to the receptacle and configured to form a fluid-tight seal over the front aperture, and a base for supporting the receptacle in an upright orientation. An articulated connecting bar assembly is hingedly coupled between a rear wall of the receptacle and a hinged connection of the toilet, enabling movement between a stored position and first and second operable positions of differing height. A water dispensing system includes a flexible conduit and a faucet assembly integrated into the cover, and is configured to dispense pressurized water into the cavity for cleaning when the cover is closed. A blackwater discharge system includes a flexible conduit connected to a lower wall opening and configured to convey waste to the toilet bowl. The connecting bar assembly may be length-adjustable or telescopic to accommodate variable toilet geometries.