FIELD: electrochemical purification of water. SUBSTANCE: water is cleaned with electrocoagulation technique with agency of alternating current with different amplitude and duration of direct and back impulses. Direct current is used with period consisting of direct current interval and pause, back current interval and second pause, wherein continuance of impulses and pauses is established as function of concentration of pollutants in water. EFFECT: enhanced purification efficiency. 2 dwg, 1 tbl
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