METHOD OF PURIFICATION OF THE WATER BY THE WEAKLY-DISSOCIABLE POLYDISPERSED IONITES Russian patent published in 2007 - IPC C02F1/42 B01J47/02 C02F103/04 

FIELD: heat-and-power industry; other industries; methods of the ion-exchange purification of the water.

SUBSTANCE: the invention is pertaining to the production process of the ion-exchange purification of the water and may be used in the heat-and-power industry and other industries. For realization of the method the subjected to purification water is passing in the top-down direction through the floating layer of the inert substance and the separated from it by the free space area layer of the weakly-dissociable polydispersed ionite with the directly located on it layer of the coarse-grained filtering inert substance. The latter has the high mechanical strength and the density exceeding 1 g/cm³, but less than the density of the used ionite. Periodically they conduct the layer-by-layer ripper washing of the whole volume of the ionite with the coarse-grained filtering inert substance at the speed of the ascending current of 15-20 m/h and the subsequent descending feeding of the regeneration solution through all layers of the substances. The method ensures extension of the field of usage of the polydispersed weakly-dissociable ionites, increases efficiency of the water purification and allows to realize the effective regeneration of the ionites.

EFFECT: the invention ensures extension of the field of usage of the polydispersed weakly-dissociable ionites, increases efficiency of the water purification and allows realization of the effective regeneration of the ionites.

2 cl, 2 ex, 2 dwg