Avaliação de um reator eletrodialítico para dessalinização do soro do leite via eletrodiálise.

Abstract

The present work has the objetive to study the performance of an electrodialitic mixed reactor to desalinate the whey milk by electrodialysis.The reactor was developed in the desalination laboratory/ of the Chemical Engeneering Department. It was fitted with two pair electrodialitic membranes showing a total area of 352 cm2 with sheet of titanium platiniced with 2,5 u Pt electrodes and its volumetric capacity 500 cm3. The performance of system was evaluated with three electrical potential 20, 40 and 60 volts. The data to electrical potential mencioned above of current density, ohmic resistence, extraction rate and energy consumption were compared. The electrical potential of 40 volts presented better conditions for some whey milk samples. The results showed that occured more energy consumption when was used the electrical potential of 60 volts. The samples was collected from ILCASA - Dairy Industry of Campina Grande S.A. This work can be improved if the number of membranes in the reactor are increased and differents conditions in term of flow rate and potential electrical should be applied to obtain a reasonable current density for differents whey milk samples quality.