Avaliação de um sistema híbrido: membranas eletrodialíticas/resinas para fins de produção de águas de baixa condutividade elétrica.

Abstract

This work aimed to study and evaluate the performance of saline solutions of ionic transport through electrodialytical membranes flat and a bed of ion exchange resin. It was used for this study a electrodialytical system and a column of resin mixed. The tests were made considering the electrical conductivity, density of current and the physical-chemical analysis of the feed solution and product output. The results showed that the variation of electrical conductivity of the product and the concentrate depends on the initial concentration of the solution. The density of current for all cases has increased its value as a function of concentration. The variation of pH of the product and concentrate the solution depends on the concentration of power, the speed of the solution inside the reactor and consequently the potential applied during the process. The cleaning with deionized water after each batch held prevents fouling.