WATER PURIFICATION METHOD Russian patent published in 1996 - IPC

FIELD: water purification sorption methods, water preparation processes and household drinking water production. SUBSTANCE: method provides for treatment of initial water (natural water and water supply) with mixture of highly alkaline anionite on polystyrol base in OH-form with gel structure washed to chemical oxygen minimum of no more than 2.0 mg 1) O₂/dm³ and weakly acid carboxylic cationite in H-form with macroporous structure and definite distribution of pores on radiuses under ratio of ionite to cationite by volume as 2 : 1. Method allows to exercise water complex clearance from metals, hardness, organic substances, bacteria in dynamic conditions. Mixture service life in process of household water purification is no less than one year. EFFECT: increased quality. 1 tbl