COLUMN COUNTER-CURRENT ION-EXCHANGE FILTER Russian patent published in 2008 - IPC B01D15/04 B01J47/10 B01J49/00 

FIELD: chemical industry; nonferrous metallurgy; other industries; production of the apparatuses for purification of the waste waters by ion exchange.

SUBSTANCE: the invention is pertaining to the apparatuses for purification of the waste waters by ion exchange. The apparatuses may be used in the galvanic and chemical production for purification of the waste waters and the production process liquids. The column counter-current ion-exchange filter contains the cylindrical housing with the inlet and outlet windows used for delivery and withdrawal of the ion-exchange filtering material, the upper and lower bottoms, the unions of the fed treated water and withdrawal of the purified water, the main pipes for feeding of the fresh ion-exchange filtering material and withdrawal of the spent ion exchanger. Inside the housing there is the rotor with the mounted on it feed screw. The feed screw is formed by the double-threaded perforated non-falling partitions and having on its external diameter the perforated non-falling jacket. In the jacket at the level of the inlet and outlet windows of the housing there are the windows used for delivery and withdrawal of the ion-exchange charge. In one apparatus the continuous process of purification of the contaminated water takes place in the presence of the anion-exchanging and cation-exchanging absorbers at the continuous change of the ion-exchanger. The technical result of the invention is the increased productivity of the ion-exchange filter and the reduced cost of the purification.

EFFECT: the invention ensures the increased productivity of the column counter-current ion-exchange filter and the reduced cost of the purification.

3 cl, 2 dwg