FIELD: drinking water purification. SUBSTANCE: drinking water treatment method provides for water preliminary purification by preliminary filter based on quartz fibers with following ultrafiltration by membranes applied on carbon-plastic casing. In the case ratio of pores of membrane material and preliminary filter is 1 : (160 - 3000). Before preliminary purification initial water is treated with calcium-bearing agent in amount of 650 - 1300 mg/l with pH kept as 6.5 - 8.0. EFFECT: improved drinking water purification. 2 cl, 3 tbl
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