Device and process for continuous recycling of wash water, so that water consumption is reduced in conventional personal wash, especially in a shower. The device comprises a surfactant detector (2), a flocculation tank (4), a water tank (5) for cleaned water and a bypass valve (3), wherein the flowpath shifts directly to the water tank (5) by means of the valve (3) bypassing the flocculation tank (4), in the absence of a surfactant in the flowpath.

The present invention describes an apparatus (1) for water supply and sanitary purposes, e.g. for allowing purification and either recycling of water or discarding of water, wherein the apparatus (1) comprises an on/off unit (2) comprising a battery (3) and a transceiver (4), and wherein the on/off unit (2) is activable by pushing an on/off knob (5) of the on/off unit (2) rendering the transceiver (4) to transmit a wireless signal to a control system to turn the apparatus (1) on respective off. Furthermore, the present invention also relates to an apparatus (1) for water supply and sanitary purposes, wherein the apparatus (1) is a shower device (1) comprising a handheld shower unit (9) having a magnetic valve (8), and also comprising a holder unit (10) for holding the handheld shower unit (9) when not being used, wherein a magnet (11) is arranged in the holder unit (10) or the handheld shower unit (9), and wherein an activation sensor (12) is provided in the holder unit (10) or in the handheld shower unit (9) so that the magnetic valve (8) is turned into an open position when the handheld shower unit (9) is removed from the holder unit (10), and wherein the holder unit (10) holds the magnetic valve (8) in a closed position when the handheld shower unit (9) is held by the holder unit (10) and not being used. Moreover, the present invention is also related to a handheld shower unit (9) for an apparatus (1).

The present invention describes a hybrid device allowing for purification and either recycling of water or discarding of water, wherein said hybrid device comprises a recirculation loop which facilitates recirculation of water within said hybrid device, and also comprises: a filter system comprising at least one filter; at least one water quality sensor, a modified drain, which is adapted to collect the water used and to facilitate the stream of water used towards the recycling loop and filter system, so that water can be purified and recirculated, or towards drainage; a water treatment unit arranged for hygenisation of water; a functionality sensor for the water treatment unit; wherein the hybrid device is arranged so that: it can operate in a recirculation mode providing purification and recirculation of water, until the water passing through said hybrid device is at a maximum level of contaminants; when any of said sensors is indicating the need to do so, and in particular when said at least one water quality sensor indicates that the water is contaminated above said maximum level of contaminants, the same water is redirected from recirculation to drainage and is discarded from the hybrid device.

A grey water heat recovery apparatus has first and second passes arranged in counter-flow orientation. It has a hot side for grey water, and a cold side for fresh water supplied under pressure. It extracts heat from the grey water drains of a building. The fresh water is carried in tubing modules in series immersed in a grey water sump in a cylindrical plastic or stainless steel pipe. The coils have a return leg such that both ends of the fresh water coil are carried out through the same upper end pipe closure, without a pressurized line wall penetration in the walls of the pipe. There is a non-electrically conductive barrier between the fresh water and grey water flow paths. The apparatus has a leak detection circuit and co-operable bypass valves. The entire assembly may be enclosed in a unitary external housing with easily accessible connection fittings.

The present invention provides a new approach to decreasing water use, energy consumption, chemical use and sewage expense in commercial kitchen operations by reusing drain water and recovering the heat energy, thereby reducing operation costs. The invention, however, is not limited to kitchen operations, it could be applied to other operations that produce greywater and could benefit from reusing water and resources.

The present invention describes a hybrid device (1) for a recirculation shower, allowing purification and either recycling of water or discarding of water, wherein said hybrid device (1) comprises a recirculation loop (2), a filter system (4) with a nano-filter (5) such as for instance an electropositive nano-ceramic filter, e.g. a nano alumina (fiber) filter, at least one filter quality sensor (3), at least one pre-filter (6), and wherein the hybrid device (1) is arranged to redirect the water from recirculation to drainage when the at least one filter quality sensor (3) indicates the need thereof.

This specification describes systems for the treatment and reuse of grey water and related processes. An exemplary system collects grey water from baths and showers and treats it for use in toilet flushing. Influent bathing water passes through a prefilter to remove larger particles and flows into a grey water collection tank. Collected grey water is filtered through a membrane designed to remove suspended solids. Membrane permeate passes through a sorbent media to remove soluble organics and then flows into a permeate tank. A chemical agent is used to disinfect water in one or more parts of the system and optionally to clean the membranes. A control system manages the operation of system. The system operates in a generally daily cycle with permeation dispersed over a material time, for example 4 or 8 hours or more.

The present invention describes a system (1) enabling treating water from a water tank (3), which water tank (3) is arranged in a water distribution architecture also comprising one or more user units (8), said system (1) also enabling recycling of water or discarding of water not suitable to recycle, said system (1) comprising a water distribution unit (2), at least one water treating unit (6) and a sensor unit (7) arranged for measurement of at least water quality, said water distribution unit (2) comprising one common user unit inlet 9 connectable via piping to said one or more user units (8) on their used water output side; said water distribution unit (2) further comprising a contaminated water outlet (10); and said water distribution unit (2) further comprising at least one water recirculation port (1000) connectable via piping to the water tank (3) to enable flowing water between the water distribution unit (2) and the water tank (3); and wherein said at least one water treating unit (6) enables to treat water to increase the water quality thereof and where the sensor unit (7) is connected to a control unit, which, based on the measurement of the water quality, is arranged to decide if water should be recycled to the water tank (3) from the water distribution unit (2) or should be discarded via the contaminated water outlet (10) from the water distribution unit (2).

The present invention describes a liquid recycling system and method for purifying and either recirculating or discarding of liquid. The system includes a liquid input line, a tank, and a circulation pump for providing recirculation of liquid from the tank. A filter and a heater are used to treat liquid from the circulation pump. A valve is provided to direct liquid either to a shower head or faucet, or back to the tank. Additional plumbing and components can be used to provide multiple independent recirculation loops with the tank. An electronic controller can be used to control components of the present invention, where a user could interface with the controller via a control panel or a software application accessed by a portable electronic device.

A sink applied to a system for recovering and reusing graywater includes a sink body, including a water basin located at an upper part of the sink body and a cavity located at a lower part of the sink body. The water basin comprises a water outlet configured to be connected to a sewer. The sink also includes a sink graywater recovery pipeline configured to be connected to the water outlet. The sink also includes a washing device configured to be connected to the sink graywater recovery pipeline. The sink also includes a switching device configured to switch between the sewer and the sink graywater recovery pipeline. When the switching device opens the sewer and closes the sink graywater recovery pipeline, the graywater is led into the sewer and discarded. When the switching device opens the sink graywater recovery pipeline and closes the sewer, the graywater is led into the washing device.