FIELD: chemistry.
SUBSTANCE: invention relates to electrochemistry and water treatment. To enrich the heavy water, alkaline water 7 and feed water 10 are mixed in circulation tank 5 to form electrolyte 16. Electrolyte 16 is fed to anode and cathode compartments 2 and 3 of alkaline water electrolysis cell 1 through circulation pumps 12a and 13a and heat exchangers 13a and 14a, respectively. In anode chamber 2, enriched electrolyte and gaseous oxygen are obtained, which are separated into gas and liquid by gas-liquid separator 14a, with the return of the separated electrolyte to circulation tank 5. Oxygen is removed through hydraulic gate 15a of the anode side. Gaseous hydrogen is formed in cathode chamber 3. Hydrogen and electrolyte are separated into gas and liquid by gas-liquid separator 14b, and separated electrolyte is returned to circulation tank 5. Hydrogen is removed through hydraulic gate 15b of the cathode side.
EFFECT: obtaining hydrogen and oxygen of high purity.
9 cl, 4 ex, 1 dwg
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