FIELD: water treatment units for open basins; preparation of drinking water of suitable properties in an emergency. SUBSTANCE: proposed plant includes delivery pump, supply main, water cleaning prefilters, sterilizing unit and sorption filters connected in series and discharge main. Water cleaning prefilters and sterilizing device are realized respectively in form of two ultrafiltering apparatus with diaphragm ceramic elements and ozonizer with ejector and mixing chamber. Supply main is connected via first and second valves respectively with inlets of first and second ultrafiltering apparatus with diaphragm ceramic elements; permeate outlets of two ultrafiltering apparatus with diaphragm ceramic elements are combined and are connected with ozonizer inlet and mixing chamber via third valve; retant outlets of two ultrafiltering apparatus are connected respectively via first and second valves of initial pressure plant to discharge main; supply main and discharge main are connected via safety valve. Sorption filters are made in form of stack of zeolite and schungite section. EFFECT: high quality of drinking water; self-contained form of plant; possibility of regeneration of ultrafiltering apparatus. 1 dwg
