METHOD OF PURIFICATION AND MINERALIZATION OF NATURAL WATERS Russian patent published in 2018 - IPC C02F9/08 C02F1/34 C02F1/68 C02F1/74 C02F103/04 

FIELD: water purification technology.

SUBSTANCE: invention may be used in water treatment systems for domestic and industrial purposes, mainly for obtaining high-quality drinking water from natural northern sources. To carry out the process, the original natural water is subjected to ejection aeration after preliminary coarse cleaning, cavitation and mineralization, flowing along the circulation circuit, which includes the oxidation chamber connected in series with the cavitator inside, ejector, a block with a pseudo-boiling layer of finely divided mineral with a particle size of 3–5 mm, and a pump. For mineralization, a mineral containing calcium and magnesium carbonates, dolomite containing 54.5 % calcium carbonate and 44.5 % magnesium carbonate or modified dolomite with 55 % calcium carbonate and 43.5 % magnesium carbonate, and the modifying additives are the rest. Circulation of water is carried out until pH=6.6–6.8. Water treated in the circulation loop is first coagulated, and then filtered through a granular charge. Purification and mineralization of water is carried out at a temperature not lower than 8 °C.

EFFECT: method provides obtaining conditioned drinking water from natural sources by purifying natural mineral water from iron, manganese and other heavy metals and enriching it with calcium and magnesium.

1 cl, 1 tbl, 1 ex