METHOD USED FOR THE COMPLEX PURIFICATION OF THE INDUSTRIAL WASTE WATERS AND THE DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2008 - IPC C02F9/06 C02F1/463 

FIELD: different branches of industry; methods and devices used for the complex purification of the industrial waste waters.

SUBSTANCE: the invention is pertaining to the field of the complex purification of the industrial waste waters and may be used in the capacity of the local waste waters purification facilities used in the different branches of industry. The method of the industrial waste waters purification provides for their preliminary purification in the reactor by the coagulation-active iron-containing sediment of the pulp of the galvanic coagulator produced at the subsequent purification of the industrial waste waters and the flocculant, the further sedimentation of the previously purified waste waters in the settlersump and the subsequent purification of their clarified part in the galvanic coagulator with the charge of iron and coke. The deep afterpurification of the industrial waste waters conduct by the spinel ferritization at the expense of alkalization of the produced pulp of the galvanic coagulator up to рН 8.5÷9.0 with the settling and the routing of the sediment of the pulp to the preliminary purification, and the obtained liquid phase - to its filtration. The purification process is conducted in the device containing the sequentially connected reactor of the preliminary purification, the primary settler, the galvanic coagulator, the reactor-ferritizer, the secondary settler and the mechanical filter. At that the in series connected sediment collector and the press-filter are linked to the primary settler sediment outlet; the sediment outlet of the galvanic coagulator through the reactor- ferritizer is connected to the reactor of the preliminary purification; the reactor of the preliminary purification and the reactor-ferritizer are linked to the mains of the air supply. The technical result of the invention is the decreased salt-content of the purified industrial waste waters to the level of the quality of the water of the recycling water supply and production at the waste waters purification of the really reutilizable sediment.

EFFECT: the invention ensures the decreased salt-content of the purified industrial waste waters to the level of the quality of the water of the recycling water supply, production in the process of the waste waters purification of the really reutilizable sediment.

3 cl, 1 dwg, 4 tbl