FIELD: sanitary engineering equipment. SUBSTANCE: vacuum drainage system has outlet pipelines, device for vacuum creation, comminuting device and screw pump installed in series and made as one unit. Comminuting device is connected to header. Besides, comminuting device has knives. Immovable knife is installed at comminuting device or screw pump inlet. Rotary knife is installed on the shaft of the screw pump. Besides the system is provided with a separator. Separator inlet is connected to the header. Separator output is connected to comminuting device, and to screw pump inlet through air conduit. EFFECT: higher productivity. 3 cl, 3 dwg
