METHOD FOR COMPLEX PURIFICATION OF MINE WATERS Russian patent published in 2018 - IPC C02F1/28 C02F1/42 B01J45/00 C02F101/10 C02F103/10 

FIELD: purification technology.

SUBSTANCE: invention can be used in the technology of purifying mine water from copper, nickel, manganese and hardness salts to produce water for domestic and drinking purposes, up to the standards set for drinking water. Such method is carried out by complex multi-stage water purification process. In the first stage, mine water is filtered through load of quartz sand with a particle size of 0.8–2.0 mm, in the second stage, copper, nickel and manganese are recovered in three or more sorption filters by aminodiacetate ion exchanger with a flow rate of 5–10 specific volumes per loading of one filter. Then, mine water is treated with 20 % solution of sodium carbonate to pH of 6.5–8.5. After that, the resulting calcium and magnesium carbonates are removed in an ultrafiltration step and the purified water is disinfected with ultraviolet radiation.

EFFECT: method provides for a comprehensive purification of mine water from polluting elements with a high removal efficiency of impurities.

1 cl, 2 ex, 1 tbl