METHOD OF THE WASTE WATERS BIOLOGICAL PURIFICATION WITH UTILIZATION OF PARTICLES-CARRIERS OF THE BIOFILM Russian patent published in 2006 - IPC C02F3/12 C02F3/10 

FIELD: biological purification of waste waters; methods of biological purification of waste waters with utilization of particles-carriers of a biofilm.

SUBSTANCE: the invention is pertaining to the method of biological purification of waste waters, which provides for application of the system of the mixed cultures of micro-organisms, at least a part of which is fixed on the solid carriers. The carriers are set in motion with possibility to form a swirling in the reactionary medium, the intensity of which is such to ensure reduction of formation of the biological settlings. The materials forming the carriers of the micro-organisms are subjected to the abrasive machining and cleansing holding them in the reactionary medium. At that the materials have the surface texture containing the abrasive areas and the areas protected against the abrasive machining, which promote the growth of the biomasses ensuring the biological activity. Intensity of the swirling formed in the reactionary medium and depending on the amount of the energy provided by the aeration and-or intermixing of the reaction medium is within the limits from 2 up to 50 watt per m³ of the reactor. The technical result of the invention is the possibility to avoid the choking of protecting screens, reduction of the amount of the formed settlings.

EFFECT: the invention allows to avoid the choking of the protecting screens, to reduce the amount of the formed settlings.

15 cl, 12 dwg, 2 tbl, 3 ex