WATER TREATMENT METHOD Russian patent published in 2017 - IPC C02F9/02 C02F1/42 B01D15/04 B01D36/02 C02F1/28 B01J47/10 

FIELD: technological processes.

SUBSTANCE: invention relates to water treatment and can be used in agriculture, in housing and communal services and in industry. Water treatment method involves filtration of water through charge with ion-exchange properties, charge regeneration and washing with upward flow of regenerate and prepared water in from bottom to top direction and charge sedimentation. Filtration is carried out using filtering system containing, at least, two successively installed filters of first 2 and second 9 stages. Filtration in first stage 2 filter is carried out in from bottom to top direction, and in second 9 stage filter is in from top to bottom direction. Charge filtration and regeneration is performed with formation of fluidized bed 7, 11 in first 2 and second 9 stages filters. Charge in first stage 2 filter is modified glauconite, and in second 9 stage filter is composition of two or more components arranged in layers. Lower layer is presented by modified glauconite. Every next layer granules densities ratio to previous layer is not less than 1.3. Amount of modified glauconite is not less than 40 % of composition total amount. Charge height in first and second stages filters ratio to filters height is 0.40–0.55:1.00.

EFFECT: invention allows to saturate water with macro- and microelements, perform water softening and deferrization, increase purification degree from impurities, as well as increase water treatment process reliability and environmental safety.

3 cl, 2 dwg, 1 tbl