METHOD OF PURIFICATION OF THE WASTE WATERS Russian patent published in 2006 - IPC C02F1/78 C02F101/16 

FIELD: physical-chemical purification and decontaminating of waste water of complex composition.

SUBSTANCE: the invention is pertaining to the field of the physical-chemical purification and decontaminating of the waste waters of the complex composition and may be used for purification of the waste waters from ammonia. The method of purification of the wastes waters is conducted by the waste waters oxidation with hydrogen peroxide at the presence of the catalyst. At that the feeding of hydrogen peroxide is combined with the injection of the ozone-oxygen mixture at the speed of 8.4 l/h. In the capacity of the catalyst use the porous ceramic materials from the wastes of the metallurgical production, and the hydrogen peroxide and the ozone are introduced at their concentration of 120 and 40 mg/l accordingly. At that the purification process is conducted at the temperatures of 5-50°C during 20-40 minutes. In the capacity of the catalyst use the porous ceramic materials - the wastes of the metallurgical production in the form of the particles on the basis of AI₂О₃, CaO,_{SiO2 and MgO with addition of the active components in the form of the transition metals and their oxides at the following components ratio of components (in mass %):AI2О3-25; CaO-35;SiO2-25; MgO-10;Fe2O3-1;Na2O-1; TiO2-1.5; Cr-0.01; Mn-0.5; Cu-0.01; V-0.01; Ni-0.001. The method ensures reduction of prices of the production process and the increased speed of the purification the household and industrial waste waters mainly from ammonia.}

EFFECT: the invention ensures reduction of prices of the production process and the increased speed of the purification the household and industrial waste waters mainly from ammonia.

1 tab