Abstract: The invention relates to liquid purification systems with filtration membranes application, intended for liquid purification and desalination, predominantly water from different recourses, including drinking water, process medium, drainage, drinks and other liquids in household or technical conditions, in country and suburban and garden plots. Liquid purification system comprising raw liquid supply line, liquid purification unit, connected to raw liquid supply line, purified liquid line, connected to purified liquid outlet of the liquid purification unit, and drainage liquid line, connected to drainage liquid outlet of the liquid purification unit, besides liquid purification unit comprises at least two membranes in a shells and connected to each other through two collectors, characterized in that collector is formed by at least two elements, communicating between each other through the adapter plugs and connected between each other with fastener.

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: 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 claimed invention relates to a filtering device for purifying a liquid, intended for softening and purifying tap water and other liquids for domestic use.

Abstract: The claimed invention relates to a filtering device for purifying a liquid, intended for softening and purifying tap water and other liquids for domestic use.