SYSTEM FOR BIOCHEMICAL PURIFICATION OF SEWAGE WATERS FROM ORGANIC AND NITROGEN-CONTAINING COMPOUNDS AND WATER RETURN FOR WATER SUPPLY OF ENTERPRISE Russian patent published in 2001 - IPC

FIELD: biochemical purification of sewage waters from organic and nitrogen-containing compounds and water return to production cycle; applicable in water treatment for nitrogen industry. SUBSTANCE: system has a combined structure including complex of nitrificator, denitrificator, mixing aerotanks, settling vessels interconnected by pipelines. System additionally contains balancing reservoirs, control valves and vessels of substandard ammonium-containing and nitrate-containing nitrogen sewages, two-stage bioreactor of fine purification of sewage waters, ultraviolet plant for disinfection of sewage waters, pipelines and collector for withdrawal of sludge. EFFECT: higher quality of sewage water purification and extended field of application. 4 cl, 2 dwg, 1 tbl, 1 ex