PLANT FOR BIOCHEMICALLY REMOVING ORGANIC AND NITROGEN CONTAINING IMPURITIES FROM CONCENTRATED WASTE WATERS Russian patent published in 1998 - IPC

FIELD: waste water treatment. SUBSTANCE: invention is intended to treat water containing 1000 to 3000 mg/l of organics and up to 150 mg/l of ammonium salt nitrogen and is appropriate for use when treating waste waters from meat-packing plants, beast farms, battery farms, creameries, etc., and also in microbiological and chemical synthesis. Plant contains biocoagulator I, combined unit II including biofilter with sprinkling system, and air tank-settler with water-jet aeration columns. Circulation pipeline II is connected through pipeline to I and to organic substrate preparation reactor IV additionally included into circuit. Discharge pipeline is connected to combined unit III, which is the second step of treatment and serves as nitrificator. Structure of III is similar to that of II. Circulation pipeline III is connected to I. There are also helium-neon lasers mounted on the trays of sprinkling system III. EFFECT: improved design. 3 cl, 6 dwg