Tatiana Scarazzato

Permselectivity Study of Ion-Exchange Membranes in the Presence of Cu-HEDP Complexes from a Copper Plating Wastewater Treatment

The development of separation process for the wastewater treatment in distinct industrial process have been applied for recover water and inputs. Electrodialysis is an example of separation process that have been studied for electroplating wastewater treatment. The use of ion-exchange membranes and an electric energy allows the selectivity separation of ions in a solution. The 1-hydroxyethane-1,1diphosphonic acid HEDP is an organic acid that is has been applied for the cyanide substitution in electroplating baths, and in this condition the electrodialysis has showed recover potential. The ion-exchange membrane used in an electrodialysis process contain organic sample are exposed for extreme conditions. These conditions can provide degradation structure and loss of permselectivity, which causes unusual membrane properties. The aim of this study is evaluate the influence of CuHEDP complexes in synthetic ion-exchange membranes using electrochemical test.

INFLUÊNCIA DA CONCENTRAÇÃO E DO PH NA DENSIDADE DE CORRENTE LIMITE DE UM SISTEMA DE MEMBRANAS DE TROCA IÔNICA POR ELETRODIÁLISE PARA SEPARAÇÃO DE COBALTO (II)

* Contribuição técnica ao 72o Congresso Anual da ABM – Internacional e ao 17o ENEMET Encontro Nacional de Estudantes de Engenharia Metalúrgica, de Materiais e de Minas, parte integrante da ABM Week, realizada de 02 a 06 de outubro de 2017, São Paulo, SP, Brasil. INFLUÊNCIA DA CONCENTRAÇÃO E DO PH NA DENSIDADE DE CORRENTE LIMITE DE UM SISTEMA DE MEMBRANAS DE TROCA IÔNICA POR ELETRODIÁLISE PARA SEPARAÇÃO DE COBALTO (II)*