METHOD FOR PRODUCING WATER WITH PREDETERMINED PROPERTIES AND APPARATUS FOR IMPLEMENTATION THEREOF Russian patent published in 2023 - IPC C02F9/00 B01D61/00 C02F1/461 C02F1/78 

FIELD: treatment of water.

SUBSTANCE: claimed group of inventions relates to the field of producing water with predetermined properties in terms of purity and the pH value. Method consists of the processes of performing pretreatment of water, membrane filtration, producing a catholyte and an anolyte in an electrolyser, and mixing said catholyte and anolyte. The membrane filtration is performed on at least one membrane filtration apparatus. The purified water is supplied to the inlet compartment of at least the first membrane filtration apparatus using at least one water jet ejector, wherein an ozone-air or ozone-oxygen mixture is simultaneously supplied through said ejector to ozonise the water. At the same time, the catholyte is added to the process circuit of the water pretreatment process until the pH value in the range from 8.0 to 11.0 is reached in the filtered water at the stage of pretreatment and on at least the first membrane filtration apparatus.

EFFECT: higher degree of purification of water from organic impurities at the stage of filtration on at least the first membrane filtration apparatus; production of water with a predetermined pH value.

4 cl, 1 dwg