FIELD: environment control technology. SUBSTANCE: this relates to anaerobic treatment of organic waste and particularly to separation of biogas into component gases. According to method, biogas is pumped into gas holder which is filled with water with temperature of 5 C. Pumping is continued until pressure in gas holder exceeds 5 MPa. Created are gas hydrates of methane, carbon dioxide, and hydrogen sulfide. Nitrogen remains in the form of gas. Carried out is stepped dehydration by reducing pressure, thus isolating separate components of biogas. EFFECT: higher efficiency. 1 dwg
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