DEVICE FOR TREATMENT OF SEWAGE WATER Russian patent published in 1996 - IPC

FIELD: treatment of sewage water. SUBSTANCE: sewage water treatment by filtering with microbe treatment of difficult for biological oxidation impurities, for instance, oil products, heavy metal salts and surfactants. To increase concentration of bacteria in treated water, use is made of their separation at the outlet of biocultivator by filtering. Taking into account the small sizes of bacteria, they are separated by means of partitions whose pores are covered on the side of sediment with fibers. Water passes through spaces between fibers and bacteria are retained and move along fibers under the action of tangential component of the centrifugal force and vibrations of fibers themselves. Fiber length exceeds pore sizes, and they are located above the mouths of pores and with free lower end. EFFECT: higher efficiency. 3 dwg