FIELD: mining and other branches of industry, in particular, removal of finely dispersed suspended mineral inclusions during concentration of metal-bearing sands. SUBSTANCE: method involves cleaning drained sewage in unit using vertical flexible capillary members of evaporators in evaporation zone. Silt discharge device, air flow direction regulator, inlet air stream direction regulator, air blower, drain sewage reservoir, moisture-saturated air outlet branch pipe, accumulating drain sewage device, silt sediment accumulating device, silt discharge chute, accumulator bottom are positioned in evaporation zone. EFFECT: increased efficiency in cleaning sewage water and improved ecology control by using ecologically clean processes. 2 dwg
