FIELD: method is used in electronics for electric-physical-chemical treatment of liquid and / or liquid-gas medium, in medicine for water disinfection. SUBSTANCE: method provides for preparation of initial liquid, manufacture of liquid treatment means, their location in liquid, feeding of electric power to them and introduction in liquid of biologically active substances - prepared initial auxiliary liquid. Then means of the liquid treatment are prepared, that are mainly made as cathode and anode electrodes. Constant and / or cyclically switched by amplitude and / or polarity voltage is fed to placed in liquid electrodes and in the case separate from anode material by electrical and / or chemical and / or electrochemical and / or electrophysical and other methods charged and / or uncharged conglomerates of biologically active substances. Volume of treated liquid is filled with conglomerates and electric energy amounts in units of treated liquid volume are accumulated. Produced preparation is then used for treatment of designated for following usage liquid and / or liquid-gas medium of volume. EFFECT: increased effectiveness of treatment. 3 cl, 1 tbl
