METHOD OF PURIFICATION OF SWIMMING POOL WATER Russian patent published in 2009 - IPC C02F9/04 C02F1/50 C02F1/76 C02F1/78 C02F103/42 

FIELD: chemistry.

SUBSTANCE: flow of purified water after sand filter is divided into to parts: one part of flow is poured back into swimming pool through its bottom, the other part is subjected to processing with ozone-hydroxyl mixture, passed through coal filter and poured into point of water intake from swimming pool. Water flow to generator of ozone-hydroxyl mixture must be not less than 1 l/min, generator ozone productivity must constitute not less than 0.5 mg O₃ per litre of water, pumped from swimming-pool for purification. Chlorine is added in form of ions ClO^- and Cl^- only at initial state of swimming pool work in amount not less than 1 mg of chlorine per 1 litre of water in whole swimming pool, pH correction is carried out with hydrochloric acid.

EFFECT: increase of purification degree and creation of prolonged antimicrobial effect, eliminating smell of chlorine in swimming pool.

2 dwg, 1 tbl