Patent ID: 6217759
Filing Date: 2001-04-17
Classification: C02F,Y02W

Abstract:
An installation for biochemical treatment of concentrated sewage comprising a primary purification stage biocoagulator, a biofilter, a combined device which includes a biofilter with an irrigating system located above a settler aeration tank, the latter having water-jet aeration columns and pipelines removing a sludge mixture, a mixing chamber and a circulating pump, a tertiary sewage purification bioreactor with an artificial charge, and a pipeline system, characterized in that the primary purification stage biocoagulator comprises a flotation chamber, a water-jet aerator, fine air dispersion aerators, a foam reflector, foam collecting chutes and pipelines removing foam and clarified sewage; additionally included are: a pump plant with a discharge tank and two pumps driving clarified sewage; the biofilter is equipped with an intermediate vessel, a He--Ne laser (HNL) irrigating system, a charge, collecting trays, aeration columns, a reaction vessel with an artificial charge and a pipeline removing sludge water to the mixing chamber of the combined device also equipped with HNL; the tertiary sewage purification bioreactor is equipped with a water-jet aerator, an aeration chamber, a chamber with an artificial charge, perforated pipes combined by discharge pipes with the circulating pump whose pressure pipeline is connected to the suction chamber of the water-jet aerator; the primary sewage pipeline is connected to the suction chamber of the water-jet aerator of the primary purification stage biocoagulator whose pipeline discharging clarified water is connected to the suction chamber of the discharge tank of the pump plant; a pressure pipeline of the combined device circulating pump is connected to the biofilter intermediate vessel, to the suction chamber of the primary purification stage water-jet aerator and to the irrigating system of the combined device biofilter, while the pipeline removing clarified water from the combined device is connected to the tertiary sewage purification bioreactor; a pressure pipeline of a first pump of said mixing chamber for driving clarified sewage is connected to the suction chamber of the primary purification stage water-jet aerator while a pressure pipeline of a second pump of said mixing chamber for driving clarified sewage is connected to the biofilter intermediate vessel.