Reactor used for the biological treatment of household waste water comprises trench having base with slope and suction point of pumping group or base of pumping shaft located at lowest point

摘要

Reactor comprises a trench having a base with a slope. A suction point of a pumping group or the base of a pumping shaft is located at the lowest point. A coarse gravel charge, having a horizontal surface and a depth of 1-40 cm, a fleece, with a fine gravel charge having a depth of 30-300 cm, and a coarse gravel charge, having a depth of 10-150 cm, are arranged on the base of the trench. Reactor comprises a trench having a base with a slope. A suction point of a pumping group (6) or the base of a pumping shaft (1) is located at the lowest point. A coarse gravel charge, having a horizontal surface and a depth of 1-40 cm, a fleece (4), with a fine gravel charge (8) having a depth of 30-300 cm, and a coarse gravel charge, having a depth of 10-150 cm, are arranged on the base of the trench. A pipe network (10) having a number of bores or openings is located within the coarse gravel charge in a horizontal plane. The network is connected to the pumping group via a riser pipe line (12).