Abstract: A valved raw liquid supply line, which is connected to a filtration unit including a liquid purification unit with an inlet and with outlets for purified liquid and drain liquid, a mixing device, a means for maintaining pressure, a means for maintaining a recirculating flow of liquid, which is located on a line supplying a mixture of raw liquid and concentrate upstream of the liquid purification unit, a recirculating line, a purified liquid line, a drain liquid line, and a control unit, which is connected to the means for maintaining pressure, pressure monitor, the raw liquid supply valve and a drain liquid discharge valve. The means for maintaining pressure is located on a raw liquid supply line upstream of the liquid mixing device. The technical result is a longer system working life, more efficient use of raw liquid, and reduced energy expenditure.

Abstract: A filtration cartridge of a liquid purification device that consists of a filtration zone (1) and a venting zone (6), said filtration zone in turn consists of a housing (2) filled with a filtration material (3) and not less than one opening (5) made in the bottom (4) of the housing (2), said venting zone consists of fixation means (7) and a lid (8), performed so that the filtration material (3) has a multi-clustered interconnected structure, and the venting zone (6) is formed so as to retain and preserve the main structure of the filtration material (3) inside the housing (2) of the filtration cartridge, by means of the fixation means (7) being the first retention barrier and made as a grid, the size of mesh (11) of said grid does preferably not exceed the average size of the filtration material cluster, and the lid (8) is made as a second retention barrier and formed, with meshes (12) comprising net sections and a top point (9) of the lid (8) is positioned at a distance preferably not more than 1 cm above th

Abstract: Raw liquid is fed along a raw liquid and drain liquid mixing line to a liquid purification device. Drain liquid is fed along a recirculation line to be mixed with raw liquid. After a set period of time, the liquid purification process is interrupted to flush the liquid purification device by a liquid to remove contaminants built up on the inside surface of the liquid purification device. Downstream of the liquid purification device, the liquid is discharged at high speed into a drain. Prior to flushing, the purification process is interrupted at least once for a time sufficient to enable disruption of a polarized layer of contaminants. A mixture of raw liquid and drain liquid is used as the liquid medium for flushing such that less raw liquid is used for flushing and the service life of the water purification device increases.

Abstract: A liquid preparation device intended for simultaneous heating and cooling of a liquid, said device including a raw liquid container, a thermoelectric converter, a control unit, a flow separation unit and a liquid preparation container being divided into a liquid heating section and a liquid cooling section, each section having a respective impermeable barrier adjacent to said thermoelectric converter. A liquid level control device is provided on the outer side of upper walls of the liquid heating section and of the liquid cooling section and in the form of a tray having a liquid level sensor on the bottom. An air exhaust is formed by two openings disposed symmetrically above the heating and cooling sections. A control unit contains a controller and, connected to it, said liquid level control device, disposed in the liquid preparation container.

Abstract: The group of inventions relates to technologies for purifying liquid, primarily water for the domestic and/or drinking water supply in domestic and/or industrial conditions and in allotments and gardens. The characterizing feature of the group of inventions is that the design of a hollow fibre membrane device envisages, and a method for the manufacture thereof enables, the formation of a protective layer consisting of a single polymeric fixing material on the internal surfaces of mono-fibre sections which are incorporated into a binding unit, and the formation of sections which are in the form of a composite in the binding unit, which increases the strength of the hollow fibre membrane device, wherein open channels in the binding unit, formed with the aid of protective elements of an assembly base, make it possible to increase the specific filtering surface.

Abstract: The invention relates to systems for purifying and/or desalinating a liquid. The present system comprises a valved raw liquid supply line, which is connected to a filtration unit comprising a liquid purification means with an inlet and with outlets for purified liquid and drain liquid, a mixing device, a means for maintaining pressure, a means for maintaining a recirculating flow of liquid, which is located on a line supplying a mixture of raw liquid and concentrate upstream of the liquid purification means, a recirculating line, a purified liquid line, a drain liquid line, and a control unit, which is connected to all of the following: the means for maintaining pressure, a means for monitoring changes in pressure, the raw liquid supply valve and a drain liquid discharge valve. The means for maintaining pressure is located on a raw liquid supply line upstream of the liquid mixing device, which is in the form of a head tank connected to a raw liquid and concentrate mixing line.

Abstract: The invention relates to the purification and/or desalination of a liquid. The present method includes purifying a liquid and flushing a liquid purification means. Raw liquid is fed, via a means for increasing pressure, along a raw liquid and drain liquid mixing line to a liquid purification means. Drain liquid is fed along a recirculation line in order to be mixed with raw liquid. After a set period of time, the liquid purification process is interrupted in order for the liquid purification means to be flushed by a liquid medium for the removal of contaminants which have built up on the inside surface of the liquid purification means. Downstream of the liquid purification means, the liquid medium is discharged at high speed into a drain. Prior to flushing of the liquid purification means, the purification process is interrupted at least once for a short period of time sufficient to enable disruption of a polarized layer of contaminants.

Abstract: The invention relates to composite materials, and more particular to composite adsorptive materials for purification of liquids, in particular, a drinking water, on the basis of components of a granulated material and a fibrous material. The new composite material for filtering purifying a liquid on the basis of a mixture of components of granulated and fibrous materials comprises volume zones with adjustable density, which zones create the structure of the material, which structure is self-strengthened when a liquid flows in the course of filtration, wherein, said volume zones make the material most part, each zone is created in the form of a interlaced fiber site, which sites are bonded among themselves by separate fibers, and the space within and between said interlaced fiber sites is filled with a granulated material.

Abstract: A liquid purification system includes a system raw liquid feed unit and a filtration unit, which includes a liquid concentration device having an internal partition dividing a variable volume collection cavity for raw liquid coming from an initial stage of liquid filtration and for mixing therein concentrate and a raw liquid displacement cavity. The cavity is connected to a secondary line that supplies raw liquid to the cavity to displace concentrate from the collection cavity and to recycle raw liquid from the displacement cavity through the secondary line under pressure exerted by concentrate and raw liquid in the collection cavity. A filtration unit provides long-term contact between raw liquid and concentrate in the variable-volume collection cavity to provide smooth increase in the concentration of liquid supplied to a liquid purification device.

Abstract: 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.

Abstract: The group of inventions relates to technologies for purifying liquid, primarily water for the domestic and/or drinking water supply in domestic and/or industrial conditions and in allotments and gardens. The characterizing feature of the group of inventions is that the design of a hollow fibre membrane device envisages, and a method for the manufacture thereof enables, the formation of a protective layer consisting of a single polymeric fixing material on the internal surfaces of mono-fibre sections which are incorporated into a binding unit, and the formation of sections which are in the form of a composite in the binding unit, which increases the strength of the hollow fibre membrane device, wherein open channels in the binding unit, formed with the aid of protective elements of an assembly base, make it possible to increase the specific filtering surface.

Abstract: The present liquid purification method, carried out with the aid of a liquid purification system, includes a three-stage liquid filtration cycle, during which all of the drain liquid can be continuously fed back into the purification system until the liquid filtration cycle is complete. During this continuous recycling, a high liquid flow rate is maintained, and the feed rate of the liquid can be controlled during the continuous mixing of initial liquid and drain liquid. The common aim of this subject matter and the technical result achieved in the use of same is the development of a novel energy-efficient method and system for purifying liquids which makes it possible to improve the energy-efficiency of liquid purification while simultaneously increasing the degree of purification and the extent to which the initial liquid is used.

Abstract: The inventions relate to purifying water and can be used in domestic water purification systems. The claimed filtered water storage unit for the storage device of a water purification system includes a housing, an elastic chamber for filtered water, and a region for pressurizing untreated water. The water purification system includes a reverse osmosis membrane, a clean water discharge pipe, an overflow into a drain, a clean water tap, and a storage device having a filtered water storage unit and a hydroautomatic unit. The outlet of the controlled chamber of a valve is associated with the water pressurizing region in the housing of the water storage unit, and the input of the controlling chamber of a valve is associated with the clean water discharge pipe upstream of the tap, wherein the valve for controlling water pressurization is normally open and the valve for controlling drainage is normally closed.

Abstract: The inventions relate to purifying water and can be used in domestic water purification systems. The claimed filtered water storage unit for the storage device of a water purification system includes a housing, an elastic chamber for filtered water, and a region for pressurizing untreated water. The water purification system includes a reverse osmosis membrane, a clean water discharge pipe, an overflow into a drain, a clean water tap, and a storage device having a filtered water storage unit and a hydro-automatic unit. The outlet of the controlled chamber of a valve is associated with the water pressurizing region in the housing of the water storage unit, and the input of the controlling chamber of a valve is associated with the clean water discharge pipe upstream of the tap, wherein the valve for controlling water pressurization is normally open and the valve for controlling drainage is normally closed.

Abstract: The invention relates to filtering devices for purifying a liquid and can be used in household conditions for additional purification of mains water and other liquids for household needs. The filtering device consists of two working zones, at least, of one fixing means at least one adjusting element. The upper working zone is configured to enable an adjustment of the hardness value of the filtered liquid throughout the service life in the form of a container with the inner cavity filled with the filtering material configured with two groups of distributors of filtered liquid flows, where the adjusting element presents a conduit arranged in the upper working zone and a valve of the fixing means which is interconnected therewith during the liquid filtration process.

Abstract: The invention relates to filter devices for purifying liquids, intended for the additional purification of mains water and other liquids for domestic use. A filter module (variants) for a device for purifying liquids consists of two working zones and at least one retaining means. A first working zone is provided with openings for the ingress of liquid and the egress of air. A second working zone is filled with a filler and is provided with at least one outlet opening in the base. The module is assembled with a third working zone containing at least one type of filler. According to a second variant, the first working zone of the filter module contains a filler. Technical result: a filter module with increased functional capabilities, providing effective water purification and the subsequent introduction of mineral substances into the water either being or having been filtered.

Abstract: Disclosed are filtering cartridge and methods of producing the filtering cartridge for purifying drinking water and other liquids for household, medical and other purposes. A filter cartridge is filled with a filtering material and is configured in the form of an open bowl which can be closed with a lid, having side walls and a bottom with at least one outlet opening which is closed with a water-permeable material, wherein the cartridge bottom is designed such as to make it possible to use the water-permeable material which comes to the external edge of the side walls and is made of fibers with a sufficiently small diameter to allow using the filtering material containing powder particles; furthermore, the entire area between external and internal edges of the walls along the perimeter of the bottom is made of a composite based on a polymer water-permeable material.

Abstract: The invention relates to composite materials, more specifically to composite membrane materials on the basis of polymeric materials used for the purification of a liquid, in particular drinking water. The novel composite material for the purification of a liquid by filtration is formed from a polymeric membrane in the form of a fibrillar-porous matrix comprising a hydrophilic polymer and a metallic antibacterial agent.

Abstract: A device for purifying a liquid is disclosed. The device includes a collecting vessel for an unpurified liquid, a collecting vessel for a purified liquid, a replaceable filter module filled with a filter material and an automatic means for timed injection of air into the collecting vessel for the unpurified liquid during a filtration process. The automatic means is connected to the collecting vessel for the unpurified liquid by an injection nozzle having a pressure control valve. Moreover, the automatic means is for maintaining positive air pressure above the unpurified liquid during the filtration process. Maintenance of positive air pressure during the filtration process increases filtration speed of the liquid with simultaneous increase in degree of purification of the liquid.