On the mechanism of the process of deep washing of ion exchange filters
It is offered the explanation of retardation of ion exchange filter washing from the remainders of the regenerating solution. The process of filter washing includes two stages. The first stage of washing from the main part of regenerating solution proceeds quickly, and the second stage of washing from the remainder of regenerating solution proceeds much slower. The aim of the investigation was to give the physical explanation of the washing retardation on the second stage. The offered explanation is based on the computation of speeds of liquid stream near an ion exchanger bead surface in the Stokes's approximation. The explanation was confirmed by the comparison of the theoretical results with the experimental ones. The results would promote further improvement of mathematical model of ion-exchange filters washing and calculation of technological schemes