Plant for desalinating water of a water supply system, which comprises one or more tanks for accumulating water (2) in an immiscible manner, in order to store a softened supply thereof, provided with a first inlet connection (3) and with a first outlet connection (4) respectively connected to a feeding pipe (5) connected to the water supply system (50) and to an extraction pipe (6) for supplying users. The plant (1) also comprises a filtering unit (10) for water softening, for example obtained with a flow-through condenser (10″) or with a reverse osmosis membrane filter (10′), connected in parallel to the tank (2) with second inlet connection (11) and second outlet connection (12) respectively hydraulically connected to the first inlet connection (3) and to the first outlet connection (4) of the tank (2). Circulating means (13) are provided which can be activated to force at least one water flow to be treated to pass through the filtering unit (10), producing a filtered water flow, which is progressively stored in the tank (2) according to a filling direction (VI) thereof. Operatively, the feeding pipe (5) of the water supply system (50) forces, when the user requests water, a water flow intended for use to flow through the tank (2), causing the at least partial evacuation of the filtered water volume that was stored therein in an immiscible manner, in an evacuation direction (V2) opposite the filling direction (VI) with which the filtered water flow had been previously stored in the tank 2.

The liquid purification system comprises a source liquid supply, a purified liquid feed line to a consumer, a liquid purification unit including a liquid-liquid type container consisting of a body containing a storage cavity for purified liquid and a displacement cavity, at least one liquid purification unit, a drainage line and a liquid flow control system including a source liquid feed section and a purified liquid feed section. The liquid flow control system is configured with a source liquid distribution section arranged for maintaining liquid pressure in the displacement cavity intended mainly for source liquid. The system provides the purified liquid feed to the consumer at any stage of the liquid purification process and after the latter is completed.

A hybrid diafiltration system includes an intermediate tank, a feed pump and a single-pass concentration (SPC) module, feed and product flow diverting valves to affect a multi-step concentration, wash and final-concentration process with fewer recirculation passes than conventional systems.

A feed of at least one of (a) a source liquid including a solvent with a dissolved impurity and (b) a retentate of the source liquid is pumped in a substantially closed loop through a liquid-separation module. The liquid-separation module includes a membrane that passes at least partially purified solvent to a permeate side of the membrane while diverting the impurity in a retentate on the retentate side of the membrane. The purified solvent is extracted from the permeate side of the membrane; and the retentate from the liquid-separation module is pumped to or through a pressurized reservoir with a variable volume for the feed component and recirculated as a component of the feed. Over time, the volume for the feed is reduced and the pressure applied to the feed in the reservoir is increased to balance against an increasing difference in osmotic pressure across the membrane.

A dialyzer (15) includes a hollow fiber dialysis column (20), a liquid tubing section (12a), and a flow rate changing section (16a). The hollow fiber dialysis column (20) includes a hollow fiber membrane, a first flow channel that allows a dialysis target to flow internally of the hollow fiber membrane, and a second flow channel that allows an external liquid to flow externally of the hollow fiber membrane. The liquid tubing section (12a) tubes the dialysis target to an inlet (20a) of the first flow channel. The flow rate changing section (16a) is capable of changing a flow rate of the dialysis target at the dialysis target flowing out of an outlet (20b) of the first flow channel.

Provided is a filter module for a gravity-type water purifier. The filter module for a gravity-type water purifier according to an exemplary embodiment of the present invention includes: a plurality of filter members which are plate shaped, and which are fixed to each other via one or more fastening bars while arranged spaced apart from each other in parallel having gaps therebetween; and a common water collecting member coupled to the respective water collecting holes formed in the filter members, and in which filtered water produced from the filter members is collected.

A purified water storage device includes a container including a cover, a bladder having a top secured to the cover and a bottom secured to a through hole of the container, a pipe for both venting and draining having an end connected to the bladder and communicating therewith, the pipe including a check valve, a water pipe having an end connected to the bottom of the bladder and communicating therewith, and a level sensor disposed externally of the container and having an end connected to the bottom of the bladder and communicating therewith. The watertight bladder is made of thermoplastic for medical or food purposes. The bladder can be replaced after a predetermined times of use rather than regular cleaning. Venting is carried out and overflow is prevented. The device has the same effect as an open container. Its material is safe and cleanness can be maintained.

Algae harvesting and cultivating systems and methods for producing high concentrations of algae product with minimal energy. In an embodiment, a dead-end filtration system and method includes at least one tank and a plurality hollow fiber membranes positioned in the at least one tank. An algae medium is pulled through the hollow fiber membranes such that a retentate and a permeate are produced.

A water purifier includes a hot water tank for receiving and heating received water by induction heating, a water outlet portion that is at least partially exposed to an outside of the water purifier for discharging hot water, a hot water line that is connected to the water outlet portion to communicate the hot water from the hot water tank to the water outlet portion, a hot water outlet valve that is located at the hot water line and that opens or closes the hot water line based on a control command, a connector that includes a hot water inlet connected to a water outlet pipe of the hot water tank and a hot water outlet connected to the hot water line, and a temperature sensor that is connected to the connector and that is configured to measure a temperature of the hot water that passes through the connector.

Devices, methods and systems are provided for preserving the surface of vehicles. The system includes a mobile housing such as a pull behind trailer that contains a purified water storage tank, a clothes washer and drier, a water heater, a multimedia filtration system, a Reverse Osmosis (RO) System, a discharge pump, and a booster pressure pump. Smaller satellite tank trailers may be serviced by larger system described herein to allow simultaneous washings. A high concentration SiO2 ceramic coating is applied with SiO2 concentration ranging between 49.9% and 64.1%.